45-use-statistical-testing

Keepalive is based on per mesh and not per node.
Using total ordering mechanism similar to paxos to elect a leader
if leader doesn't update it's timestamp within 3 * keepAlive then
give the leader a gravestone and elect the next leader.
Leader is bassed on lexicographically ordered public key.

.github/workflows/go.yml

@@ -0,0 +1,31 @@
+# This workflow will build a golang project
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
+
+name: Go
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.21'
+
+    - name: Tidy
+      run: go mod tidy
+      
+    - name: Build
+      run: go build -v ./...
+
+    - name: Test
+      run: go test -v ./...

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "smegmesh-web"]
+	path = smegmesh-web
+	url = git@github.com:tim-beatham/smegmesh-web.git

Containerfile

@@ -0,0 +1,12 @@
+FROM docker.io/library/golang:bookworm
+COPY ./ /wgmesh
+RUN apt-get update && apt-get install -y \
+    wireguard \
+    wireguard-tools \
+    iproute2 \
+    iputils-ping \
+    tmux \
+    vim
+WORKDIR /wgmesh
+RUN go mod tidy
+RUN go build -o /usr/local/bin ./...

Dockerfile

@@ -0,0 +1 @@
+Containerfile

cmd/api/main.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"log"
+
+	"github.com/tim-beatham/wgmesh/pkg/api"
+)
+
+func main() {
+	apiServer, err := api.NewSmegServer(api.ApiServerConf{
+		WordsFile: "./cmd/api/words.txt",
+	})
+
+	if err != nil {
+		log.Fatal(err.Error())
+	}
+
+	apiServer.Run(":8080")
+}

cmd/api/words.txt

@@ -0,0 +1,257 @@
+be
+to
+of
+it
+in
+we
+do
+he
+on
+go
+at
+if
+or
+up
+by
+hi
+the
+and
+you
+not
+for
+but
+say
+get
+she
+one
+all
+can
+out
+who
+now
+see
+way
+how
+lot
+yes
+use
+any
+day
+try
+put
+let
+why
+new
+off
+big
+too
+ask
+man
+bit
+end
+may
+own
+run
+pay
+job
+old
+kid
+bad
+few
+ago
+far
+buy
+set
+guy
+car
+sit
+war
+win
+yet
+top
+law
+cut
+low
+die
+eat
+age
+hit
+air
+add
+boy
+act
+tax
+oil
+eye
+son
+key
+fun
+dad
+dog
+arm
+fly
+box
+gas
+lie
+hot
+gun
+per
+art
+red
+fit
+bed
+fan
+mix
+mom
+sex
+bus
+fix
+bar
+lay
+ice
+bet
+bag
+due
+aid
+tie
+leg
+ban
+odd
+cup
+dry
+cry
+rid
+pop
+sir
+cat
+map
+sad
+sea
+aim
+sun
+fat
+row
+egg
+tea
+god
+wed
+tip
+ear
+hat
+net
+ill
+dig
+fee
+mad
+gap
+nor
+bid
+era
+toy
+sky
+bin
+owe
+wet
+tap
+pro
+ski
+cow
+pen
+van
+web
+pot
+sum
+cap
+log
+pub
+pig
+joy
+raw
+rat
+via
+lip
+two
+six
+ten
+lab
+ton
+mid
+bat
+hip
+gut
+sin
+non
+rub
+sub
+par
+pre
+ray
+cue
+dye
+fin
+ion
+neo
+hey
+wow
+mum
+bye
+aye
+jet
+sue
+pet
+flu
+cop
+ooh
+rip
+spy
+pie
+bug
+gum
+wan
+rap
+nut
+beg
+pin
+pit
+jam
+tag
+fax
+vet
+fry
+pad
+lad
+mud
+bay
+con
+pan
+gee
+toe
+dip
+shy
+gym
+zoo
+fox
+bow
+tin
+hop
+wee
+kit
+opt
+vow
+sew
+cab
+bee
+rob
+rig
+yep
+ego
+rib
+nod
+hug
+lap
+ash
+hum
+dam
+bum
+yen
+jar

cmd/dns/main.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"log"
+
+	smegdns "github.com/tim-beatham/wgmesh/pkg/dns"
+)
+
+func main() {
+	server, err := smegdns.NewDns(53)
+
+	if err != nil {
+		log.Fatal(err.Error())
+	}
+
+	defer server.Close()
+	server.Listen()
+}

cmd/wg-mesh/main.go

@@ -8,7 +8,9 @@ import (
 	"time"
 
 	"github.com/akamensky/argparse"
+	"github.com/tim-beatham/wgmesh/pkg/ctrlserver"
 	"github.com/tim-beatham/wgmesh/pkg/ipc"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
 	logging "github.com/tim-beatham/wgmesh/pkg/log"
 )
 
@@ -16,7 +18,6 @@ const SockAddr = "/tmp/wgmesh_ipc.sock"
 
 type CreateMeshParams struct {
 	Client   *ipcRpc.Client
-	IfName   string
 	WgPort   int
 	Endpoint string
 }
@@ -24,7 +25,6 @@ type CreateMeshParams struct {
 func createMesh(args *CreateMeshParams) string {
 	var reply string
 	newMeshParams := ipc.NewMeshArgs{
-		IfName:   args.IfName,
 		WgPort:   args.WgPort,
 		Endpoint: args.Endpoint,
 	}
@@ -68,7 +68,6 @@ func joinMesh(params *JoinMeshParams) string {
 	args := ipc.JoinMeshArgs{
 		MeshId:   params.MeshId,
 		IpAdress: params.IpAddress,
-		IfName:   params.IfName,
 		Port:     params.WgPort,
 	}
 
@@ -96,9 +95,13 @@ func getMesh(client *ipcRpc.Client, meshId string) {
 		fmt.Println("Control Endpoint: " + node.HostEndpoint)
 		fmt.Println("WireGuard Endpoint: " + node.WgEndpoint)
 		fmt.Println("Wg IP: " + node.WgHost)
-		fmt.Println(fmt.Sprintf("Timestamp: %s", time.Unix(node.Timestamp, 0).String()))
+		fmt.Printf("Timestamp: %s", time.Unix(node.Timestamp, 0).String())
 
-		advertiseRoutes := strings.Join(node.Routes, ",")
+		mapFunc := func(r ctrlserver.MeshRoute) string {
+			return r.Destination
+		}
+
+		advertiseRoutes := strings.Join(lib.Map(node.Routes, mapFunc), ",")
 		fmt.Printf("Routes: %s\n", advertiseRoutes)
 
 		fmt.Println("---")
@@ -171,6 +174,68 @@ func putDescription(client *ipcRpc.Client, description string) {
 	fmt.Println(reply)
 }
 
+// putAlias: puts an alias for the node
+func putAlias(client *ipcRpc.Client, alias string) {
+	var reply string
+
+	err := client.Call("IpcHandler.PutAlias", &alias, &reply)
+
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+
+	fmt.Println(reply)
+}
+
+func setService(client *ipcRpc.Client, service, value string) {
+	var reply string
+
+	serviceArgs := &ipc.PutServiceArgs{
+		Service: service,
+		Value:   value,
+	}
+
+	err := client.Call("IpcHandler.PutService", serviceArgs, &reply)
+
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+
+	fmt.Println(reply)
+}
+
+func deleteService(client *ipcRpc.Client, service string) {
+	var reply string
+
+	err := client.Call("IpcHandler.PutService", &service, &reply)
+
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+
+	fmt.Println(reply)
+}
+
+func getNode(client *ipcRpc.Client, nodeId, meshId string) {
+	var reply string
+	args := &ipc.GetNodeArgs{
+		NodeId: nodeId,
+		MeshId: meshId,
+	}
+
+	err := client.Call("IpcHandler.GetNode", &args, &reply)
+
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+
+	fmt.Println(reply)
+}
+
 func main() {
 	parser := argparse.NewParser("wg-mesh",
 		"wg-mesh Manipulate WireGuard meshes")
@@ -178,25 +243,24 @@ func main() {
 	newMeshCmd := parser.NewCommand("new-mesh", "Create a new mesh")
 	listMeshCmd := parser.NewCommand("list-meshes", "List meshes the node is connected to")
 	joinMeshCmd := parser.NewCommand("join-mesh", "Join a mesh network")
-	// getMeshCmd := parser.NewCommand("get-mesh", "Get a mesh network")
 	enableInterfaceCmd := parser.NewCommand("enable-interface", "Enable A Specific Mesh Interface")
 	getGraphCmd := parser.NewCommand("get-graph", "Convert a mesh into DOT format")
 	leaveMeshCmd := parser.NewCommand("leave-mesh", "Leave a mesh network")
 	queryMeshCmd := parser.NewCommand("query-mesh", "Query a mesh network using JMESPath")
 	putDescriptionCmd := parser.NewCommand("put-description", "Place a description for the node")
+	putAliasCmd := parser.NewCommand("put-alias", "Place an alias for the node")
+	setServiceCmd := parser.NewCommand("set-service", "Place a service into your advertisements")
+	deleteServiceCmd := parser.NewCommand("delete-service", "Remove a service from your advertisements")
+	getNodeCmd := parser.NewCommand("get-node", "Get a specific node from the mesh")
 
-	var newMeshIfName *string = newMeshCmd.String("f", "ifname", &argparse.Options{Required: true})
-	var newMeshPort *int = newMeshCmd.Int("p", "wgport", &argparse.Options{Required: true})
+	var newMeshPort *int = newMeshCmd.Int("p", "wgport", &argparse.Options{})
 	var newMeshEndpoint *string = newMeshCmd.String("e", "endpoint", &argparse.Options{})
 
 	var joinMeshId *string = joinMeshCmd.String("m", "mesh", &argparse.Options{Required: true})
 	var joinMeshIpAddress *string = joinMeshCmd.String("i", "ip", &argparse.Options{Required: true})
-	var joinMeshIfName *string = joinMeshCmd.String("f", "ifname", &argparse.Options{Required: true})
-	var joinMeshPort *int = joinMeshCmd.Int("p", "wgport", &argparse.Options{Required: true})
+	var joinMeshPort *int = joinMeshCmd.Int("p", "wgport", &argparse.Options{})
 	var joinMeshEndpoint *string = joinMeshCmd.String("e", "endpoint", &argparse.Options{})
 
-	// var getMeshId *string = getMeshCmd.String("m", "mesh", &argparse.Options{Required: true})
-
 	var enableInterfaceMeshId *string = enableInterfaceCmd.String("m", "mesh", &argparse.Options{Required: true})
 
 	var getGraphMeshId *string = getGraphCmd.String("m", "mesh", &argparse.Options{Required: true})
@@ -208,6 +272,16 @@ func main() {
 
 	var description *string = putDescriptionCmd.String("d", "description", &argparse.Options{Required: true})
 
+	var alias *string = putAliasCmd.String("a", "alias", &argparse.Options{Required: true})
+
+	var serviceKey *string = setServiceCmd.String("s", "service", &argparse.Options{Required: true})
+	var serviceValue *string = setServiceCmd.String("v", "value", &argparse.Options{Required: true})
+
+	var deleteServiceKey *string = deleteServiceCmd.String("s", "service", &argparse.Options{Required: true})
+
+	var getNodeNodeId *string = getNodeCmd.String("n", "nodeid", &argparse.Options{Required: true})
+	var getNodeMeshId *string = getNodeCmd.String("m", "meshid", &argparse.Options{Required: true})
+
 	err := parser.Parse(os.Args)
 
 	if err != nil {
@@ -224,7 +298,6 @@ func main() {
 	if newMeshCmd.Happened() {
 		fmt.Println(createMesh(&CreateMeshParams{
 			Client:   client,
-			IfName:   *newMeshIfName,
 			WgPort:   *newMeshPort,
 			Endpoint: *newMeshEndpoint,
 		}))
@@ -237,7 +310,6 @@ func main() {
 	if joinMeshCmd.Happened() {
 		fmt.Println(joinMesh(&JoinMeshParams{
 			Client:    client,
-			IfName:    *joinMeshIfName,
 			WgPort:    *joinMeshPort,
 			IpAddress: *joinMeshIpAddress,
 			MeshId:    *joinMeshId,
@@ -245,10 +317,6 @@ func main() {
 		}))
 	}
 
-	// if getMeshCmd.Happened() {
-	// getMesh(client, *getMeshId)
-	// }
-
 	if getGraphCmd.Happened() {
 		getGraph(client, *getGraphMeshId)
 	}
@@ -268,4 +336,20 @@ func main() {
 	if putDescriptionCmd.Happened() {
 		putDescription(client, *description)
 	}
+
+	if putAliasCmd.Happened() {
+		putAlias(client, *alias)
+	}
+
+	if setServiceCmd.Happened() {
+		setService(client, *serviceKey, *serviceValue)
+	}
+
+	if deleteServiceCmd.Happened() {
+		deleteService(client, *deleteServiceKey)
+	}
+
+	if getNodeCmd.Happened() {
+		getNode(client, *getNodeNodeId, *getNodeMeshId)
+	}
 }

cmd/wgmeshd/configuration.yaml

@@ -2,6 +2,7 @@ certificatePath: "/wgmesh/cert/cert.pem"
 privateKeyPath: "/wgmesh/cert/priv.pem"
 caCertificatePath: "/wgmesh/cert/cacert.pem"
 skipCertVerification: true
+timeout: 5
 gRPCPort: "21906"
 advertiseRoutes: true
 clusterSize: 32
@@ -9,4 +10,5 @@ syncRate: 1
 interClusterChance: 0.15
 branchRate: 3
 infectionCount: 3
-keepAliveRate: 60
+keepAliveTime: 10
+pruneTime: 20

cmd/wgmeshd/main.go

@@ -1,7 +1,8 @@
 package main
 
 import (
-	"log"
+	"net/http"
+	_ "net/http/pprof"
 	"os"
 	"os/signal"
 
@@ -9,10 +10,10 @@ import (
 	ctrlserver "github.com/tim-beatham/wgmesh/pkg/ctrlserver"
 	"github.com/tim-beatham/wgmesh/pkg/ipc"
 	logging "github.com/tim-beatham/wgmesh/pkg/log"
-	"github.com/tim-beatham/wgmesh/pkg/middleware"
+	"github.com/tim-beatham/wgmesh/pkg/mesh"
 	"github.com/tim-beatham/wgmesh/pkg/robin"
 	"github.com/tim-beatham/wgmesh/pkg/sync"
-	"github.com/tim-beatham/wgmesh/pkg/timestamp"
+	timer "github.com/tim-beatham/wgmesh/pkg/timers"
 	"golang.zx2c4.com/wireguard/wgctrl"
 )
 
@@ -35,24 +36,34 @@ func main() {
 		return
 	}
 
+	if conf.Profile {
+		go func() {
+			http.ListenAndServe("localhost:6060", nil)
+		}()
+	}
+
 	var robinRpc robin.WgRpc
 	var robinIpc robin.IpcHandler
-	var authProvider middleware.AuthRpcProvider
 	var syncProvider sync.SyncServiceImpl
+	var syncRequester sync.SyncRequester
+	var syncer sync.Syncer
 
 	ctrlServerParams := ctrlserver.NewCtrlServerParams{
 		Conf:         conf,
-		AuthProvider: &authProvider,
 		CtrlProvider: &robinRpc,
 		SyncProvider: &syncProvider,
 		Client:       client,
+		OnDelete: func(mp mesh.MeshProvider) {
+			syncer.SyncMeshes()
+		},
 	}
 
 	ctrlServer, err := ctrlserver.NewCtrlServer(&ctrlServerParams)
 	syncProvider.Server = ctrlServer
-	syncRequester := sync.NewSyncRequester(ctrlServer)
-	syncScheduler := sync.NewSyncScheduler(ctrlServer, syncRequester)
-	timestampScheduler := timestamp.NewTimestampScheduler(ctrlServer)
+	syncRequester = sync.NewSyncRequester(ctrlServer)
+	syncer = sync.NewSyncer(ctrlServer.MeshManager, conf, syncRequester)
+	syncScheduler := sync.NewSyncScheduler(ctrlServer, syncRequester, syncer)
+	keepAlive := timer.NewTimestampScheduler(ctrlServer)
 
 	robinIpcParams := robin.RobinIpcParams{
 		CtrlServer: ctrlServer,
@@ -66,16 +77,16 @@ func main() {
 		return
 	}
 
-	log.Println("Running IPC Handler")
+	logging.Log.WriteInfof("Running IPC Handler")
 
 	go ipc.RunIpcHandler(&robinIpc)
 	go syncScheduler.Run()
-	go timestampScheduler.Run()
+	go keepAlive.Run()
 
 	closeResources := func() {
 		logging.Log.WriteInfof("Closing resources")
 		syncScheduler.Stop()
-		timestampScheduler.Stop()
+		keepAlive.Stop()
 		ctrlServer.Close()
 		client.Close()
 	}

examples/meshtomesh/docker-compose.yaml

@@ -0,0 +1,95 @@
+version: '3'
+networks:
+  net-1:
+    driver: bridge
+    ipam:
+      driver: default
+      config:
+        - subnet: 10.89.0.0/17
+  net-2:
+    driver: bridge
+    ipam:
+      driver: default
+      config:
+        - subnet: 10.89.155.0/17
+services:
+  wg-1:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    networks:
+      - net-1
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml"
+  wg-2:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    networks:
+      - net-1
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml"
+  wg-3:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    networks:
+      - net-1
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml"
+  wg-4:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    sysctls:
+      - net.ipv6.conf.all.forwarding=1
+    networks:
+      - net-1
+      - net-2
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml"
+  wg-5:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    networks:
+      - net-2
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml"
+  wg-6:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    networks:
+      - net-2
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml"
+  wg-7:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    networks:
+      - net-2
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml"

examples/meshtomesh/shared/configuration.yaml

@@ -0,0 +1,14 @@
+certificatePath: "/wgmesh/cert/cert.pem"
+privateKeyPath: "/wgmesh/cert/priv.pem"
+caCertificatePath: "/wgmesh/cert/cacert.pem"
+skipCertVerification: true
+timeout: 5
+gRPCPort: "21906"
+advertiseRoutes: true
+clusterSize: 32
+syncRate: 1
+interClusterChance: 0.15
+branchRate: 3
+infectionCount: 3
+keepAliveTime: 10
+pruneTime: 20

examples/simple/docker-compose.yaml

@@ -0,0 +1,42 @@
+version: '3'
+networks:
+  net-1:
+    driver: bridge
+    ipam:
+      driver: default
+      config:
+        - subnet: 10.89.0.0/17 
+services:
+  wg-1:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    networks:
+      - net-1
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml"
+  wg-2:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    networks:
+      - net-1
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml"
+  wg-3:
+    image: wg-mesh-base:latest
+    cap_add:
+      - NET_ADMIN
+      - NET_RAW
+    tty: true
+    networks:
+      - net-1
+    volumes:
+      - ./shared:/shared
+    command: "wgmeshd /shared/configuration.yaml" 

examples/simple/shared/configuration.yaml

@@ -0,0 +1,14 @@
+certificatePath: "/wgmesh/cert/cert.pem"
+privateKeyPath: "/wgmesh/cert/priv.pem"
+caCertificatePath: "/wgmesh/cert/cacert.pem"
+skipCertVerification: true
+timeout: 5
+gRPCPort: "21906"
+advertiseRoutes: true
+clusterSize: 32
+syncRate: 1
+interClusterChance: 0.15
+branchRate: 3
+infectionCount: 3
+keepAliveTime: 10
+pruneTime: 20

go.mod

@@ -1,13 +1,16 @@
 module github.com/tim-beatham/wgmesh
 
-go 1.21.1
+go 1.21.3
 
 require (
 	github.com/akamensky/argparse v1.4.0
 	github.com/automerge/automerge-go v0.0.0-20230903201930-b80ce8aadbb9
+	github.com/gin-gonic/gin v1.9.1
 	github.com/google/uuid v1.3.0
 	github.com/jmespath/go-jmespath v0.4.0
+	github.com/jsimonetti/rtnetlink v1.3.5
 	github.com/sirupsen/logrus v1.9.3
+	golang.org/x/sys v0.14.0
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6
 	google.golang.org/grpc v1.58.1
 	google.golang.org/protobuf v1.31.0
@@ -15,16 +18,33 @@ require (
 )
 
 require (
+	github.com/bytedance/sonic v1.9.1 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.14.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
 	github.com/josharian/native v1.1.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.4 // indirect
+	github.com/leodido/go-urn v1.2.4 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
 	github.com/mdlayher/genetlink v1.3.2 // indirect
 	github.com/mdlayher/netlink v1.7.2 // indirect
 	github.com/mdlayher/socket v0.5.0 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.11 // indirect
+	golang.org/x/arch v0.3.0 // indirect
 	golang.org/x/crypto v0.13.0 // indirect
 	golang.org/x/net v0.15.0 // indirect
 	golang.org/x/sync v0.3.0 // indirect
-	golang.org/x/sys v0.12.0 // indirect
 	golang.org/x/text v0.13.0 // indirect
 	golang.zx2c4.com/wireguard v0.0.0-20230704135630-469159ecf7d1 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 // indirect

pkg/api/apiserver.go

@@ -0,0 +1,237 @@
+package api
+
+import (
+	"fmt"
+	"net/http"
+
+	ipcRpc "net/rpc"
+
+	"github.com/gin-gonic/gin"
+	"github.com/tim-beatham/wgmesh/pkg/ctrlserver"
+	"github.com/tim-beatham/wgmesh/pkg/ipc"
+	logging "github.com/tim-beatham/wgmesh/pkg/log"
+	"github.com/tim-beatham/wgmesh/pkg/what8words"
+)
+
+const SockAddr = "/tmp/wgmesh_ipc.sock"
+
+type ApiServer interface {
+	GetMeshes(c *gin.Context)
+	Run(addr string) error
+}
+
+type SmegServer struct {
+	router *gin.Engine
+	client *ipcRpc.Client
+	words  *what8words.What8Words
+}
+
+func (s *SmegServer) routeToApiRoute(meshNode ctrlserver.MeshNode) []Route {
+	routes := make([]Route, len(meshNode.Routes))
+
+	for index, route := range meshNode.Routes {
+
+		if route.Path == nil {
+			route.Path = make([]string, 0)
+		}
+
+		routes[index] = Route{
+			Prefix: route.Destination,
+			Path:   route.Path,
+		}
+	}
+
+	return routes
+}
+
+func (s *SmegServer) meshNodeToAPIMeshNode(meshNode ctrlserver.MeshNode) *SmegNode {
+	if meshNode.Routes == nil {
+		meshNode.Routes = make([]ctrlserver.MeshRoute, 0)
+	}
+
+	alias := meshNode.Alias
+
+	if alias == "" {
+		alias, _ = s.words.ConvertIdentifier(meshNode.WgHost)
+	}
+
+	return &SmegNode{
+		WgHost:      meshNode.WgHost,
+		WgEndpoint:  meshNode.WgEndpoint,
+		Endpoint:    meshNode.HostEndpoint,
+		Timestamp:   int(meshNode.Timestamp),
+		Description: meshNode.Description,
+		Routes:      s.routeToApiRoute(meshNode),
+		PublicKey:   meshNode.PublicKey,
+		Alias:       alias,
+		Services:    meshNode.Services,
+	}
+}
+
+func (s *SmegServer) meshToAPIMesh(meshId string, nodes []ctrlserver.MeshNode) SmegMesh {
+	var smegMesh SmegMesh
+	smegMesh.MeshId = meshId
+	smegMesh.Nodes = make(map[string]SmegNode)
+
+	for _, node := range nodes {
+		smegMesh.Nodes[node.WgHost] = *s.meshNodeToAPIMeshNode(node)
+	}
+
+	return smegMesh
+}
+
+// CreateMesh: creates a mesh network
+func (s *SmegServer) CreateMesh(c *gin.Context) {
+	var createMesh CreateMeshRequest
+
+	if err := c.ShouldBindJSON(&createMesh); err != nil {
+		c.JSON(http.StatusBadRequest, &gin.H{
+			"error": err.Error(),
+		})
+
+		return
+	}
+
+	ipcRequest := ipc.NewMeshArgs{
+		WgPort: createMesh.WgPort,
+	}
+
+	var reply string
+
+	err := s.client.Call("IpcHandler.CreateMesh", &ipcRequest, &reply)
+
+	if err != nil {
+		c.JSON(http.StatusBadRequest, &gin.H{
+			"error": err.Error(),
+		})
+		return
+	}
+
+	c.JSON(http.StatusOK, &gin.H{
+		"meshid": reply,
+	})
+}
+
+// JoinMesh: joins a mesh network
+func (s *SmegServer) JoinMesh(c *gin.Context) {
+	var joinMesh JoinMeshRequest
+
+	if err := c.ShouldBindJSON(&joinMesh); err != nil {
+		c.JSON(http.StatusBadRequest, &gin.H{
+			"error": err.Error(),
+		})
+		return
+	}
+
+	ipcRequest := ipc.JoinMeshArgs{
+		MeshId:   joinMesh.MeshId,
+		IpAdress: joinMesh.Bootstrap,
+		Port:     joinMesh.WgPort,
+	}
+
+	var reply string
+
+	err := s.client.Call("IpcHandler.JoinMesh", &ipcRequest, &reply)
+
+	if err != nil {
+		c.JSON(http.StatusBadRequest, &gin.H{
+			"error": err.Error(),
+		})
+		return
+	}
+
+	c.JSON(http.StatusOK, &gin.H{
+		"status": "success",
+	})
+}
+
+// GetMesh: given a meshId returns the corresponding mesh
+// network.
+func (s *SmegServer) GetMesh(c *gin.Context) {
+	meshidParam := c.Param("meshid")
+
+	var meshid string = meshidParam
+
+	getMeshReply := new(ipc.GetMeshReply)
+
+	err := s.client.Call("IpcHandler.GetMesh", &meshid, &getMeshReply)
+
+	if err != nil {
+		c.JSON(http.StatusNotFound,
+			&gin.H{
+				"error": fmt.Sprintf("could not find mesh %s", meshidParam),
+			})
+		return
+	}
+
+	mesh := s.meshToAPIMesh(meshidParam, getMeshReply.Nodes)
+
+	c.JSON(http.StatusOK, mesh)
+}
+
+func (s *SmegServer) GetMeshes(c *gin.Context) {
+	listMeshesReply := new(ipc.ListMeshReply)
+
+	err := s.client.Call("IpcHandler.ListMeshes", "", &listMeshesReply)
+
+	if err != nil {
+		logging.Log.WriteErrorf(err.Error())
+		c.JSON(http.StatusBadRequest, nil)
+		return
+	}
+
+	meshes := make([]SmegMesh, 0)
+
+	for _, mesh := range listMeshesReply.Meshes {
+		getMeshReply := new(ipc.GetMeshReply)
+
+		err := s.client.Call("IpcHandler.GetMesh", &mesh, &getMeshReply)
+
+		if err != nil {
+			logging.Log.WriteErrorf(err.Error())
+			c.JSON(http.StatusBadRequest, nil)
+			return
+		}
+
+		meshes = append(meshes, s.meshToAPIMesh(mesh, getMeshReply.Nodes))
+	}
+
+	c.JSON(http.StatusOK, meshes)
+}
+
+func (s *SmegServer) Run(addr string) error {
+	logging.Log.WriteInfof("Running API server")
+	return s.router.Run(addr)
+}
+
+func NewSmegServer(conf ApiServerConf) (ApiServer, error) {
+	client, err := ipcRpc.DialHTTP("unix", SockAddr)
+
+	if err != nil {
+		return nil, err
+	}
+
+	words, err := what8words.NewWhat8Words(conf.WordsFile)
+
+	if err != nil {
+		return nil, err
+	}
+
+	router := gin.Default()
+
+	router.Use(gin.LoggerWithConfig(gin.LoggerConfig{
+		Output: logging.Log.Writer(),
+	}))
+
+	smegServer := &SmegServer{
+		router: router,
+		client: client,
+		words:  words,
+	}
+
+	router.GET("/meshes", smegServer.GetMeshes)
+	router.GET("/mesh/:meshid", smegServer.GetMesh)
+	router.POST("/mesh/create", smegServer.CreateMesh)
+	router.POST("/mesh/join", smegServer.JoinMesh)
+	return smegServer, nil
+}

pkg/api/types.go

@@ -0,0 +1,37 @@
+package api
+
+type Route struct {
+	Prefix string   `json:"prefix"`
+	Path   []string `json:"path"`
+}
+
+type SmegNode struct {
+	Alias       string            `json:"alias"`
+	WgHost      string            `json:"wgHost"`
+	WgEndpoint  string            `json:"wgEndpoint"`
+	Endpoint    string            `json:"endpoint"`
+	Timestamp   int               `json:"timestamp"`
+	Description string            `json:"description"`
+	PublicKey   string            `json:"publicKey"`
+	Routes      []Route           `json:"routes"`
+	Services    map[string]string `json:"services"`
+}
+
+type SmegMesh struct {
+	MeshId string              `json:"meshid"`
+	Nodes  map[string]SmegNode `json:"nodes"`
+}
+
+type CreateMeshRequest struct {
+	WgPort int `json:"port" binding:"omitempty,gte=1024,lt=65535"`
+}
+
+type JoinMeshRequest struct {
+	WgPort    int    `json:"port" binding:"omitempty,gte=1024,lt=65535"`
+	Bootstrap string `json:"bootstrap" binding:"required"`
+	MeshId    string `json:"meshid" binding:"required"`
+}
+
+type ApiServerConf struct {
+	WordsFile string
+}

pkg/automerge/automerge.go

@@ -1,9 +1,10 @@
-package crdt
+package automerge
 
 import (
 	"errors"
 	"fmt"
 	"net"
+	"slices"
 	"strings"
 	"time"
 
@@ -18,13 +19,14 @@ import (
 
 // CrdtMeshManager manages nodes in the crdt mesh
 type CrdtMeshManager struct {
-	MeshId   string
-	IfName   string
-	NodeId   string
-	Client   *wgctrl.Client
-	doc      *automerge.Doc
-	LastHash automerge.ChangeHash
-	conf     *conf.WgMeshConfiguration
+	MeshId        string
+	IfName        string
+	Client        *wgctrl.Client
+	doc           *automerge.Doc
+	LastHash      automerge.ChangeHash
+	conf          *conf.WgMeshConfiguration
+	cache         *MeshCrdt
+	lastCacheHash automerge.ChangeHash
 }
 
 func (c *CrdtMeshManager) AddNode(node mesh.MeshNode) {
@@ -34,15 +36,78 @@ func (c *CrdtMeshManager) AddNode(node mesh.MeshNode) {
 		panic("node must be of type *MeshNodeCrdt")
 	}
 
+	crdt.Routes = make(map[string]Route)
+	crdt.Services = make(map[string]string)
 	crdt.Timestamp = time.Now().Unix()
-	c.doc.Path("nodes").Map().Set(crdt.HostEndpoint, crdt)
-	nodeVal, _ := c.doc.Path("nodes").Map().Get(crdt.HostEndpoint)
-	nodeVal.Map().Set("routes", automerge.NewMap())
+
+	c.doc.Path("nodes").Map().Set(crdt.PublicKey, crdt)
+}
+
+func (c *CrdtMeshManager) isPeer(nodeId string) bool {
+	node, err := c.doc.Path("nodes").Map().Get(nodeId)
+
+	if err != nil || node.Kind() != automerge.KindMap {
+		return false
+	}
+
+	nodeType, err := node.Map().Get("type")
+
+	if err != nil || nodeType.Kind() != automerge.KindStr {
+		return false
+	}
+
+	return nodeType.Str() == string(conf.PEER_ROLE)
+}
+
+// isAlive: checks that the node's configuration has been updated
+// since the rquired keep alive time
+func (c *CrdtMeshManager) isAlive(nodeId string) bool {
+	node, err := c.doc.Path("nodes").Map().Get(nodeId)
+
+	if err != nil || node.Kind() != automerge.KindMap {
+		return false
+	}
+
+	timestamp, err := node.Map().Get("timestamp")
+
+	if err != nil || timestamp.Kind() != automerge.KindInt64 {
+		return false
+	}
+
+	keepAliveTime := timestamp.Int64()
+	return (time.Now().Unix() - keepAliveTime) < int64(c.conf.DeadTime)
+}
+
+func (c *CrdtMeshManager) GetPeers() []string {
+	keys, _ := c.doc.Path("nodes").Map().Keys()
+
+	keys = lib.Filter(keys, func(publicKey string) bool {
+		return c.isPeer(publicKey) && c.isAlive(publicKey)
+	})
+
+	return keys
 }
 
 // GetMesh(): Converts the document into a struct
 func (c *CrdtMeshManager) GetMesh() (mesh.MeshSnapshot, error) {
-	return automerge.As[*MeshCrdt](c.doc.Root())
+	changes, err := c.doc.Changes(c.lastCacheHash)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if c.cache == nil || len(changes) > 0 {
+		c.lastCacheHash = c.LastHash
+		cache, err := automerge.As[*MeshCrdt](c.doc.Root())
+
+		if err != nil {
+			return nil, err
+		}
+
+		c.cache = cache
+	}
+
+	return c.cache, nil
 }
 
 // GetMeshId returns the meshid of the mesh
@@ -82,23 +147,23 @@ func NewCrdtNodeManager(params *NewCrdtNodeMangerParams) (*CrdtMeshManager, erro
 	manager.IfName = params.DevName
 	manager.Client = params.Client
 	manager.conf = &params.Conf
+	manager.cache = nil
 	return &manager, nil
 }
 
-func (c *CrdtMeshManager) removeNode(endpoint string) error {
-	err := c.doc.Path("nodes").Map().Delete(endpoint)
-
-	if err != nil {
-		return err
-	}
-
-	return nil
+// NodeExists: returns true if the node exists. Returns false
+func (m *CrdtMeshManager) NodeExists(key string) bool {
+	node, err := m.doc.Path("nodes").Map().Get(key)
+	return node.Kind() == automerge.KindMap && err == nil
 }
 
-// GetNode: returns a mesh node crdt.Close releases resources used by a Client.
-func (m *CrdtMeshManager) GetNode(endpoint string) (*MeshNodeCrdt, error) {
+func (m *CrdtMeshManager) GetNode(endpoint string) (mesh.MeshNode, error) {
 	node, err := m.doc.Path("nodes").Map().Get(endpoint)
 
+	if node.Kind() != automerge.KindMap {
+		return nil, fmt.Errorf("GetNode: something went wrong %s is not a map type")
+	}
+
 	if err != nil {
 		return nil, err
 	}
@@ -176,7 +241,7 @@ func (m *CrdtMeshManager) SetDescription(nodeId string, description string) erro
 	}
 
 	if node.Kind() != automerge.KindMap {
-		return errors.New(fmt.Sprintf("%s does not exist", nodeId))
+		return fmt.Errorf("%s does not exist", nodeId)
 	}
 
 	err = node.Map().Set("description", description)
@@ -188,8 +253,75 @@ func (m *CrdtMeshManager) SetDescription(nodeId string, description string) erro
 	return err
 }
 
+func (m *CrdtMeshManager) SetAlias(nodeId string, alias string) error {
+	node, err := m.doc.Path("nodes").Map().Get(nodeId)
+
+	if err != nil {
+		return err
+	}
+
+	if node.Kind() != automerge.KindMap {
+		return fmt.Errorf("%s does not exist", nodeId)
+	}
+
+	err = node.Map().Set("alias", alias)
+
+	if err == nil {
+		logging.Log.WriteInfof("Updated Alias for %s to %s", nodeId, alias)
+	}
+
+	return err
+}
+
+func (m *CrdtMeshManager) AddService(nodeId, key, value string) error {
+	node, err := m.doc.Path("nodes").Map().Get(nodeId)
+
+	if err != nil || node.Kind() != automerge.KindMap {
+		return fmt.Errorf("AddService: node %s does not exist", nodeId)
+	}
+
+	service, err := node.Map().Get("services")
+
+	if err != nil {
+		return err
+	}
+
+	if service.Kind() != automerge.KindMap {
+		return fmt.Errorf("AddService: services property does not exist in node")
+	}
+
+	err = service.Map().Set(key, value)
+	return err
+}
+
+func (m *CrdtMeshManager) RemoveService(nodeId, key string) error {
+	node, err := m.doc.Path("nodes").Map().Get(nodeId)
+
+	if err != nil || node.Kind() != automerge.KindMap {
+		return fmt.Errorf("RemoveService: node %s does not exist", nodeId)
+	}
+
+	service, err := node.Map().Get("services")
+
+	if err != nil {
+		return err
+	}
+
+	if service.Kind() != automerge.KindMap {
+		return fmt.Errorf("services property does not exist")
+	}
+
+	err = service.Map().Delete(key)
+
+	if err != nil {
+		return fmt.Errorf("service %s does not exist", key)
+	}
+
+	return nil
+}
+
 // AddRoutes: adds routes to the specific nodeId
-func (m *CrdtMeshManager) AddRoutes(nodeId string, routes ...string) error {
+func (m *CrdtMeshManager) AddRoutes(nodeId string, routes ...mesh.Route) error {
 	nodeVal, err := m.doc.Path("nodes").Map().Get(nodeId)
 	logging.Log.WriteInfof("Adding route to %s", nodeId)
 
@@ -197,6 +329,10 @@ func (m *CrdtMeshManager) AddRoutes(nodeId string, routes ...string) error {
 		return err
 	}
 
+	if nodeVal.Kind() != automerge.KindMap {
+		return fmt.Errorf("node does not exist")
+	}
+
 	routeMap, err := nodeVal.Map().Get("routes")
 
 	if err != nil {
@@ -204,20 +340,195 @@ func (m *CrdtMeshManager) AddRoutes(nodeId string, routes ...string) error {
 	}
 
 	for _, route := range routes {
-		err = routeMap.Map().Set(route, struct{}{})
+		prevRoute, err := routeMap.Map().Get(route.GetDestination().String())
+
+		if prevRoute.Kind() == automerge.KindVoid && err != nil {
+			path, err := prevRoute.Map().Get("path")
+
+			if err != nil {
+				return err
+			}
+
+			if path.Kind() != automerge.KindList {
+				return fmt.Errorf("path is not a list")
+			}
+
+			pathStr, err := automerge.As[[]string](path)
+
+			if err != nil {
+				return err
+			}
+
+			slices.Equal(route.GetPath(), pathStr)
+		}
+
+		err = routeMap.Map().Set(route.GetDestination().String(), Route{
+			Destination: route.GetDestination().String(),
+			Path:        route.GetPath(),
+		})
 
 		if err != nil {
 			return err
 		}
 	}
-
 	return nil
 }
 
+func (m *CrdtMeshManager) getRoutes(nodeId string) ([]Route, error) {
+	nodeVal, err := m.doc.Path("nodes").Map().Get(nodeId)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if nodeVal.Kind() != automerge.KindMap {
+		return nil, fmt.Errorf("node does not exist")
+	}
+
+	routeMap, err := nodeVal.Map().Get("routes")
+
+	if err != nil {
+		return nil, err
+	}
+
+	if routeMap.Kind() != automerge.KindMap {
+		return nil, fmt.Errorf("node %s is not a map", nodeId)
+	}
+
+	routes, err := automerge.As[map[string]Route](routeMap)
+
+	return lib.MapValues(routes), err
+}
+
+func (m *CrdtMeshManager) GetRoutes(targetNode string) (map[string]mesh.Route, error) {
+	node, err := m.GetNode(targetNode)
+
+	if err != nil {
+		return nil, err
+	}
+
+	routes := make(map[string]mesh.Route)
+
+	// Add routes that the node directly has
+	for _, route := range node.GetRoutes() {
+		routes[route.GetDestination().String()] = route
+	}
+
+	// Work out the other routes in the mesh
+	for _, node := range m.GetPeers() {
+		nodeRoutes, err := m.getRoutes(node)
+
+		if err != nil {
+			return nil, err
+		}
+
+		for _, route := range nodeRoutes {
+			otherRoute, ok := routes[route.GetDestination().String()]
+
+			hopCount := route.GetHopCount()
+
+			if node != targetNode {
+				hopCount += 1
+			}
+
+			if !ok || route.GetHopCount()+1 < otherRoute.GetHopCount() {
+				routes[route.GetDestination().String()] = &Route{
+					Destination: route.GetDestination().String(),
+					Path:        append(route.Path, m.GetMeshId()),
+				}
+			}
+		}
+	}
+
+	return routes, nil
+}
+
+func (m *CrdtMeshManager) RemoveNode(nodeId string) error {
+	err := m.doc.Path("nodes").Map().Delete(nodeId)
+	return err
+}
+
+// DeleteRoutes deletes the specified routes
+func (m *CrdtMeshManager) RemoveRoutes(nodeId string, routes ...string) error {
+	nodeVal, err := m.doc.Path("nodes").Map().Get(nodeId)
+
+	if err != nil {
+		return err
+	}
+
+	if nodeVal.Kind() != automerge.KindMap {
+		return fmt.Errorf("node is not a map")
+	}
+
+	routeMap, err := nodeVal.Map().Get("routes")
+
+	if err != nil {
+		return err
+	}
+
+	for _, route := range routes {
+		err = routeMap.Map().Delete(route)
+	}
+
+	return err
+}
+
 func (m *CrdtMeshManager) GetSyncer() mesh.MeshSyncer {
 	return NewAutomergeSync(m)
 }
 
+func (m *CrdtMeshManager) Prune() error {
+	// nodes, err := m.doc.Path("nodes").Get()
+
+	// if err != nil {
+	// 	return err
+	// }
+
+	// if nodes.Kind() != automerge.KindMap {
+	// 	return errors.New("node must be a map")
+	// }
+
+	// values, err := nodes.Map().Values()
+
+	// if err != nil {
+	// 	return err
+	// }
+
+	// deletionNodes := make([]string, 0)
+
+	// for nodeId, node := range values {
+	// 	if node.Kind() != automerge.KindMap {
+	// 		return errors.New("node must be a map")
+	// 	}
+
+	// 	nodeMap := node.Map()
+
+	// 	timeStamp, err := nodeMap.Get("timestamp")
+
+	// 	if err != nil {
+	// 		return err
+	// 	}
+
+	// 	if timeStamp.Kind() != automerge.KindInt64 {
+	// 		return errors.New("timestamp is not int64")
+	// 	}
+
+	// 	timeValue := timeStamp.Int64()
+	// 	nowValue := time.Now().Unix()
+
+	// 	if nowValue-timeValue >= int64(pruneTime) {
+	// 		deletionNodes = append(deletionNodes, nodeId)
+	// 	}
+	// }
+
+	// for _, node := range deletionNodes {
+	// 	logging.Log.WriteInfof("Pruning %s", node)
+	// 	nodes.Map().Delete(node)
+	// }
+
+	return nil
+}
+
 func (m1 *MeshNodeCrdt) Compare(m2 *MeshNodeCrdt) int {
 	return strings.Compare(m1.PublicKey, m2.PublicKey)
 }
@@ -238,7 +549,6 @@ func (m *MeshNodeCrdt) GetWgHost() *net.IPNet {
 	_, ipnet, err := net.ParseCIDR(m.WgHost)
 
 	if err != nil {
-		logging.Log.WriteErrorf("Cannot parse WgHost %s", err.Error())
 		return nil
 	}
 
@@ -249,8 +559,13 @@ func (m *MeshNodeCrdt) GetTimeStamp() int64 {
 	return m.Timestamp
 }
 
-func (m *MeshNodeCrdt) GetRoutes() []string {
-	return lib.MapKeys(m.Routes)
+func (m *MeshNodeCrdt) GetRoutes() []mesh.Route {
+	return lib.Map(lib.MapValues(m.Routes), func(r Route) mesh.Route {
+		return &Route{
+			Destination: r.Destination,
+			Path:        r.Path,
+		}
+	})
 }
 
 func (m *MeshNodeCrdt) GetDescription() string {
@@ -261,11 +576,30 @@ func (m *MeshNodeCrdt) GetIdentifier() string {
 	ipv6 := m.WgHost[:len(m.WgHost)-4]
 
 	constituents := strings.Split(ipv6, ":")
-	logging.Log.WriteInfof(ipv6)
 	constituents = constituents[4:]
 	return strings.Join(constituents, ":")
 }
 
+func (m *MeshNodeCrdt) GetAlias() string {
+	return m.Alias
+}
+
+func (m *MeshNodeCrdt) GetServices() map[string]string {
+	services := make(map[string]string)
+
+	for key, service := range m.Services {
+		services[key] = service
+	}
+
+	return services
+}
+
+// GetType refers to the type of the node. Peer means that the node is globally accessible
+// Client means the node is only accessible through another peer
+func (n *MeshNodeCrdt) GetType() conf.NodeType {
+	return conf.NodeType(n.Type)
+}
+
 func (m *MeshCrdt) GetNodes() map[string]mesh.MeshNode {
 	nodes := make(map[string]mesh.MeshNode)
 
@@ -278,8 +612,24 @@ func (m *MeshCrdt) GetNodes() map[string]mesh.MeshNode {
 			Timestamp:    node.Timestamp,
 			Routes:       node.Routes,
 			Description:  node.Description,
+			Alias:        node.Alias,
+			Services:     node.GetServices(),
+			Type:         node.Type,
 		}
 	}
 
 	return nodes
 }
+
+func (r *Route) GetDestination() *net.IPNet {
+	_, ipnet, _ := net.ParseCIDR(r.Destination)
+	return ipnet
+}
+
+func (r *Route) GetHopCount() int {
+	return len(r.Path)
+}
+
+func (r *Route) GetPath() []string {
+	return r.Path
+}

pkg/automerge/automerge_sync.go

@@ -1,4 +1,4 @@
-package crdt
+package automerge
 
 import (
 	"github.com/automerge/automerge-go"

pkg/automerge/automerge_test.go

@@ -0,0 +1,366 @@
+package automerge
+
+import (
+	"slices"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/tim-beatham/wgmesh/pkg/conf"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+	"github.com/tim-beatham/wgmesh/pkg/mesh"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+)
+
+type TestParams struct {
+	manager *CrdtMeshManager
+}
+
+func setUpTests() *TestParams {
+	manager, _ := NewCrdtNodeManager(&NewCrdtNodeMangerParams{
+		MeshId:  "timsmesh123",
+		DevName: "wg0",
+		Port:    5000,
+		Client:  nil,
+		Conf:    conf.WgMeshConfiguration{},
+	})
+
+	return &TestParams{
+		manager: manager,
+	}
+}
+
+func getTestNode() mesh.MeshNode {
+	return &MeshNodeCrdt{
+		HostEndpoint: "public-endpoint:8080",
+		WgEndpoint:   "public-endpoint:21906",
+		WgHost:       "3e9a:1fb3:5e50:8173:9690:f917:b1ab:d218/128",
+		PublicKey:    "AAAAAAAAAAAA",
+		Timestamp:    time.Now().Unix(),
+		Description:  "A node that we are adding",
+	}
+}
+
+func getTestNode2() mesh.MeshNode {
+	return &MeshNodeCrdt{
+		HostEndpoint: "public-endpoint:8081",
+		WgEndpoint:   "public-endpoint:21907",
+		WgHost:       "3e9a:1fb3:5e50:8173:9690:f917:b1ab:d219/128",
+		PublicKey:    "BBBBBBBBB",
+		Timestamp:    time.Now().Unix(),
+		Description:  "A node that we are adding",
+	}
+}
+
+func TestAddNodeNodeExists(t *testing.T) {
+	testParams := setUpTests()
+	testParams.manager.AddNode(getTestNode())
+
+	node, err := testParams.manager.GetNode("public-endpoint:8080")
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if node == nil {
+		t.Fatalf(`node not added to the mesh when it should be`)
+	}
+}
+
+func TestAddNodeAddRoute(t *testing.T) {
+	testParams := setUpTests()
+	testNode := getTestNode()
+	testParams.manager.AddNode(testNode)
+	testParams.manager.AddRoutes(testNode.GetHostEndpoint(), "fd:1c64:1d00::/48")
+
+	updatedNode, err := testParams.manager.GetNode(testNode.GetHostEndpoint())
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if updatedNode == nil {
+		t.Fatalf(`Node does not exist in the mesh`)
+	}
+
+	routes := updatedNode.GetRoutes()
+
+	if !slices.Contains(routes, "fd:1c64:1d00::/48") {
+		t.Fatal("Route node not added")
+	}
+
+	if len(routes) != 1 {
+		t.Fatal(`Route length mismatch`)
+	}
+}
+
+func TestGetMeshIdReturnsTheMeshId(t *testing.T) {
+	testParams := setUpTests()
+
+	if len(testParams.manager.GetMeshId()) == 0 {
+		t.Fatal(`Meshid is less than 0`)
+	}
+}
+
+// Add 2 nodes to the mesh and then get the mesh.s
+// It should return the 2 nodes that have been added to the mesh
+func TestAdd2NodesGetMesh(t *testing.T) {
+	testParams := setUpTests()
+	node1 := getTestNode()
+	node2 := getTestNode2()
+
+	testParams.manager.AddNode(node1)
+	testParams.manager.AddNode(node2)
+
+	mesh, err := testParams.manager.GetMesh()
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	nodes := mesh.GetNodes()
+
+	if len(nodes) != 2 {
+		t.Fatalf(`Mismatch in node slice`)
+	}
+
+	for _, node := range nodes {
+		if node.GetHostEndpoint() != node1.GetHostEndpoint() && node.GetHostEndpoint() != node2.GetHostEndpoint() {
+			t.Fatalf(`Node should not exist`)
+		}
+	}
+}
+
+func TestSaveMeshReturnsMeshBytes(t *testing.T) {
+	testParams := setUpTests()
+	node1 := getTestNode()
+
+	testParams.manager.AddNode(node1)
+
+	bytes := testParams.manager.Save()
+
+	if len(bytes) <= 0 {
+		t.Fatalf(`bytes in the mesh is less than 0`)
+	}
+}
+
+func TestSaveMeshThenLoad(t *testing.T) {
+	testParams := setUpTests()
+	testParams2 := setUpTests()
+
+	node1 := getTestNode()
+	testParams.manager.AddNode(node1)
+
+	bytes := testParams.manager.Save()
+
+	err := testParams2.manager.Load(bytes)
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if len(bytes) <= 0 {
+		t.Fatalf(`bytes in the mesh is less than 0`)
+	}
+
+	mesh2, err := testParams2.manager.GetMesh()
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	nodes := mesh2.GetNodes()
+
+	if lib.MapValues(nodes)[0].GetHostEndpoint() != node1.GetHostEndpoint() {
+		t.Fatalf(`Node should be in the list of nodes`)
+	}
+}
+
+func TestLengthNoNodes(t *testing.T) {
+	testParams := setUpTests()
+
+	if testParams.manager.Length() != 0 {
+		t.Fatalf(`Number of nodes should be 0`)
+	}
+}
+
+func TestLength1Node(t *testing.T) {
+	testParams := setUpTests()
+	node := getTestNode()
+	testParams.manager.AddNode(node)
+
+	if testParams.manager.Length() != 1 {
+		t.Fatalf(`Number of nodes should be 1`)
+	}
+}
+
+func TestLengthMultipleNodes(t *testing.T) {
+	testParams := setUpTests()
+	node := getTestNode()
+	node1 := getTestNode2()
+
+	testParams.manager.AddNode(node)
+	testParams.manager.AddNode(node1)
+
+	if testParams.manager.Length() != 2 {
+		t.Fatalf(`Number of nodes should be 2`)
+	}
+}
+
+func TestHasChangesNoChanges(t *testing.T) {
+	testParams := setUpTests()
+
+	if testParams.manager.HasChanges() {
+		t.Fatalf(`Should not have changes just created document`)
+	}
+}
+
+func TestHasChangesChanges(t *testing.T) {
+	testParams := setUpTests()
+	node := getTestNode()
+
+	testParams.manager.AddNode(node)
+
+	if !testParams.manager.HasChanges() {
+		t.Fatalf(`Should have changes just added node`)
+	}
+}
+
+func TestHasChangesSavedChanges(t *testing.T) {
+	testParams := setUpTests()
+	node := getTestNode()
+
+	testParams.manager.AddNode(node)
+
+	testParams.manager.SaveChanges()
+
+	if testParams.manager.HasChanges() {
+		t.Fatalf(`Should not have changes just saved document`)
+	}
+}
+
+func TestUpdateTimeStampNodeDoesNotExist(t *testing.T) {
+	testParams := setUpTests()
+	err := testParams.manager.UpdateTimeStamp("AAAAAA")
+
+	if err == nil {
+		t.Fatalf(`Error should have returned`)
+	}
+}
+
+func TestUpdateTimeStampNodeExists(t *testing.T) {
+	testParams := setUpTests()
+	node := getTestNode()
+
+	testParams.manager.AddNode(node)
+	err := testParams.manager.UpdateTimeStamp(node.GetHostEndpoint())
+
+	if err != nil {
+		t.Error(err)
+	}
+}
+
+func TestSetDescriptionNodeDoesNotExist(t *testing.T) {
+	testParams := setUpTests()
+	err := testParams.manager.SetDescription("AAAAA", "Bob 123")
+
+	if err == nil {
+		t.Fatalf(`Error should have returned`)
+	}
+}
+
+func TestSetDescriptionNodeExists(t *testing.T) {
+	testParams := setUpTests()
+	node := getTestNode()
+	err := testParams.manager.SetDescription(node.GetHostEndpoint(), "Bob 123")
+
+	if err == nil {
+		t.Fatalf(`Error should have returned`)
+	}
+}
+
+func TestAddRoutesNodeDoesNotExist(t *testing.T) {
+	testParams := setUpTests()
+
+	err := testParams.manager.AddRoutes("AAAAA", "fd:1c64:1d00::/48")
+
+	if err == nil {
+		t.Error(err)
+	}
+}
+
+func TestCompareComparesByPublicKey(t *testing.T) {
+	node := getTestNode().(*MeshNodeCrdt)
+	node2 := getTestNode2().(*MeshNodeCrdt)
+
+	if node.Compare(node2) != -1 {
+		t.Fatalf(`node is alphabetically before node2`)
+	}
+
+	if node2.Compare(node) != 1 {
+		t.Fatalf(`node is alphabetical;y before node2`)
+	}
+
+	if node.Compare(node) != 0 {
+		t.Fatalf(`node is equal to node`)
+	}
+}
+
+func TestGetHostEndpoint(t *testing.T) {
+	node := getTestNode()
+
+	if (node.(*MeshNodeCrdt)).HostEndpoint != node.GetHostEndpoint() {
+		t.Fatalf(`get hostendpoint should get the host endpoint`)
+	}
+}
+
+func TestGetPublicKey(t *testing.T) {
+	key1, _ := wgtypes.GenerateKey()
+
+	node := getTestNode()
+	node.(*MeshNodeCrdt).PublicKey = key1.String()
+
+	pubKey, err := node.GetPublicKey()
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if pubKey.String() != key1.String() {
+		t.Fatalf(`Expected %s got %s`, key1.String(), pubKey.String())
+	}
+}
+
+func TestGetWgEndpoint(t *testing.T) {
+	node := getTestNode()
+
+	if node.(*MeshNodeCrdt).WgEndpoint != node.GetWgEndpoint() {
+		t.Fatal(`Did not return the correct wgEndpoint`)
+	}
+}
+
+func TestGetWgHost(t *testing.T) {
+	node := getTestNode()
+
+	ip := node.GetWgHost()
+
+	if node.(*MeshNodeCrdt).WgHost != ip.String() {
+		t.Fatal(`Did not parse WgHost correctly`)
+	}
+}
+
+func TestGetTimeStamp(t *testing.T) {
+	node := getTestNode()
+
+	if node.(*MeshNodeCrdt).Timestamp != node.GetTimeStamp() {
+		t.Fatal(`Did not return return the correct timestamp`)
+	}
+}
+
+func TestGetIdentifierDoesNotContainPrefix(t *testing.T) {
+	node := getTestNode()
+
+	if strings.Contains(node.GetIdentifier(), "/128") {
+		t.Fatal(`Identifier should not contain prefix`)
+	}
+}

pkg/automerge/factory.go

@@ -1,4 +1,4 @@
-package crdt
+package automerge
 
 import (
 	"fmt"
@@ -28,14 +28,23 @@ type MeshNodeFactory struct {
 func (f *MeshNodeFactory) Build(params *mesh.MeshNodeFactoryParams) mesh.MeshNode {
 	hostName := f.getAddress(params)
 
+	grpcEndpoint := fmt.Sprintf("%s:%s", hostName, f.Config.GrpcPort)
+
+	if f.Config.Role == conf.CLIENT_ROLE {
+		grpcEndpoint = "-"
+	}
+
 	return &MeshNodeCrdt{
-		HostEndpoint: fmt.Sprintf("%s:%s", hostName, f.Config.GrpcPort),
+		HostEndpoint: grpcEndpoint,
 		PublicKey:    params.PublicKey.String(),
 		WgEndpoint:   fmt.Sprintf("%s:%d", hostName, params.WgPort),
 		WgHost:       fmt.Sprintf("%s/128", params.NodeIP.String()),
 		// Always set the routes as empty.
 		// Routes handled by external component
-		Routes: map[string]interface{}{},
+		Routes:      make(map[string]Route),
+		Description: "",
+		Alias:       "",
+		Type:        string(f.Config.Role),
 	}
 }
 
@@ -48,7 +57,19 @@ func (f *MeshNodeFactory) getAddress(params *mesh.MeshNodeFactoryParams) string
 	} else if len(f.Config.Endpoint) != 0 {
 		hostName = f.Config.Endpoint
 	} else {
-		hostName = lib.GetOutboundIP().String()
+		ipFunc := lib.GetPublicIP
+
+		if f.Config.IPDiscovery == conf.DNS_IP_DISCOVERY {
+			ipFunc = lib.GetOutboundIP
+		}
+
+		ip, err := ipFunc()
+
+		if err != nil {
+			return ""
+		}
+
+		hostName = ip.String()
 	}
 
 	return hostName

pkg/automerge/types.go

@@ -1,14 +1,23 @@
-package crdt
+package automerge
+
+// Route: Represents a CRDT of the given route
+type Route struct {
+	Destination string   `automerge:"destination"`
+	Path        []string `automerge:"path"`
+}
 
 // MeshNodeCrdt: Represents a CRDT for a mesh nodes
 type MeshNodeCrdt struct {
-	HostEndpoint string                 `automerge:"hostEndpoint"`
-	WgEndpoint   string                 `automerge:"wgEndpoint"`
-	PublicKey    string                 `automerge:"publicKey"`
-	WgHost       string                 `automerge:"wgHost"`
-	Timestamp    int64                  `automerge:"timestamp"`
-	Routes       map[string]interface{} `automerge:"routes"`
-	Description  string                 `automerge:"description"`
+	HostEndpoint string            `automerge:"hostEndpoint"`
+	WgEndpoint   string            `automerge:"wgEndpoint"`
+	PublicKey    string            `automerge:"publicKey"`
+	WgHost       string            `automerge:"wgHost"`
+	Timestamp    int64             `automerge:"timestamp"`
+	Routes       map[string]Route  `automerge:"routes"`
+	Alias        string            `automerge:"alias"`
+	Description  string            `automerge:"description"`
+	Services     map[string]string `automerge:"services"`
+	Type         string            `automerge:"type"`
 }
 
 // MeshCrdt: Represents the mesh network as a whole

pkg/conf/conf.go

@@ -8,6 +8,28 @@ import (
 	"gopkg.in/yaml.v3"
 )
 
+type WgMeshConfigurationError struct {
+	msg string
+}
+
+func (m *WgMeshConfigurationError) Error() string {
+	return m.msg
+}
+
+type NodeType string
+
+const (
+	PEER_ROLE   NodeType = "peer"
+	CLIENT_ROLE NodeType = "client"
+)
+
+type IPDiscovery string
+
+const (
+	PUBLIC_IP_DISCOVERY = "public"
+	DNS_IP_DISCOVERY    = "dns"
+)
+
 type WgMeshConfiguration struct {
 	// CertificatePath is the path to the certificate to use in mTLS
 	CertificatePath string `yaml:"certificatePath"`
@@ -20,17 +42,139 @@ type WgMeshConfiguration struct {
 	SkipCertVerification bool `yaml:"skipCertVerification"`
 	// Port to run the GrpcServer on
 	GrpcPort string `yaml:"gRPCPort"`
+	// IPDIscovery: how to discover your IP if not specified. Use DNS server 8.8.8.8 or
+	// use public IP discovery library
+	IPDiscovery IPDiscovery `yaml:"ipDiscovery"`
 	// AdvertiseRoutes advertises other meshes if the node is in multiple meshes
 	AdvertiseRoutes bool `yaml:"advertiseRoutes"`
 	// Endpoint is the IP in which this computer is publicly reachable.
 	// usecase is when the node has multiple IP addresses
-	Endpoint           string  `yaml:"publicEndpoint"`
-	ClusterSize        int     `yaml:"clusterSize"`
-	SyncRate           float64 `yaml:"syncRate"`
+	Endpoint string `yaml:"publicEndpoint"`
+	// ClusterSize size of the cluster to split on
+	ClusterSize int `yaml:"clusterSize"`
+	// SyncRate number of times per second to perform a sync
+	SyncRate float64 `yaml:"syncRate"`
+	// InterClusterChance proability of inter-cluster communication in a sync round
 	InterClusterChance float64 `yaml:"interClusterChance"`
-	BranchRate         int     `yaml:"branchRate"`
-	InfectionCount     int     `yaml:"infectionCount"`
-	KeepAliveRate      int     `yaml:"keepAliveRate"`
+	// BranchRate number of nodes to randomly communicate with
+	BranchRate int `yaml:"branchRate"`
+	// InfectionCount number of times we sync before we can no longer catch the udpate
+	InfectionCount int `yaml:"infectionCount"`
+	// KeepAliveTime number of seconds before we update node indicating that we are still alive
+	KeepAliveTime int `yaml:"keepAliveTime"`
+	// Timeout number of seconds before we consider the node as dead
+	Timeout int `yaml:"timeout"`
+	// PruneTime number of seconds before we remove nodes that are likely to be dead
+	PruneTime int `yaml:"pruneTime"`
+	// DeadTime: number of seconds before we consider the node as dead and stop considering it
+	// when picking a random peer
+	DeadTime int `yaml:"deadTime"`
+	// Profile whether or not to include a http server that profiles the code
+	Profile bool `yaml:"profile"`
+	// StubWg whether or not to stub the WireGuard types
+	StubWg bool `yaml:"stubWg"`
+	// Role specifies whether or not the user is globally accessible.
+	// If the user is globaly accessible they specify themselves as a client.
+	Role NodeType `yaml:"role"`
+	// KeepAliveWg configures the implementation so that we send keep alive packets to peers.
+	// KeepAlive can only be set if role is type client
+	KeepAliveWg int `yaml:"keepAliveWg"`
+}
+
+func ValidateConfiguration(c *WgMeshConfiguration) error {
+	if len(c.CertificatePath) == 0 {
+		return &WgMeshConfigurationError{
+			msg: "A public certificate must be specified for mTLS",
+		}
+	}
+
+	if len(c.PrivateKeyPath) == 0 {
+		return &WgMeshConfigurationError{
+			msg: "A private key must be specified for mTLS",
+		}
+	}
+
+	if len(c.CaCertificatePath) == 0 {
+		return &WgMeshConfigurationError{
+			msg: "A ca certificate must be specified for mTLS",
+		}
+	}
+
+	if len(c.GrpcPort) == 0 {
+		return &WgMeshConfigurationError{
+			msg: "A grpc port must be specified",
+		}
+	}
+
+	if c.ClusterSize <= 0 {
+		return &WgMeshConfigurationError{
+			msg: "A cluster size must not be 0",
+		}
+	}
+
+	if c.SyncRate <= 0 {
+		return &WgMeshConfigurationError{
+			msg: "SyncRate cannot be negative",
+		}
+	}
+
+	if c.BranchRate <= 0 {
+		return &WgMeshConfigurationError{
+			msg: "Branch rate cannot be negative",
+		}
+	}
+
+	if c.InfectionCount <= 0 {
+		return &WgMeshConfigurationError{
+			msg: "Infection count cannot be less than 1",
+		}
+	}
+
+	if c.KeepAliveTime <= 0 {
+		return &WgMeshConfigurationError{
+			msg: "KeepAliveRate cannot be less than negative",
+		}
+	}
+
+	if c.InterClusterChance <= 0 {
+		return &WgMeshConfigurationError{
+			msg: "Intercluster chance cannot be less than 0",
+		}
+	}
+
+	if c.Timeout < 1 {
+		return &WgMeshConfigurationError{
+			msg: "Timeout should be greater than or equal to 1",
+		}
+	}
+
+	if c.PruneTime < 1 {
+		return &WgMeshConfigurationError{
+			msg: "Prune time cannot be < 1",
+		}
+	}
+
+	if c.DeadTime < 1 {
+		return &WgMeshConfigurationError{
+			msg: "Dead time cannot be < 1",
+		}
+	}
+
+	if c.KeepAliveTime <= 1 {
+		return &WgMeshConfigurationError{
+			msg: "Prune time cannot be less than keep alive time",
+		}
+	}
+
+	if c.Role == "" {
+		c.Role = PEER_ROLE
+	}
+
+	if c.IPDiscovery == "" {
+		c.IPDiscovery = PUBLIC_IP_DISCOVERY
+	}
+
+	return nil
 }
 
 // ParseConfiguration parses the mesh configuration
@@ -51,5 +195,5 @@ func ParseConfiguration(filePath string) (*WgMeshConfiguration, error) {
 		return nil, err
 	}
 
-	return &conf, nil
+	return &conf, ValidateConfiguration(&conf)
 }

pkg/conf/conf_test.go

@@ -0,0 +1,165 @@
+package conf
+
+import "testing"
+
+func getExampleConfiguration() *WgMeshConfiguration {
+	return &WgMeshConfiguration{
+		CertificatePath:      "./cert/cert.pem",
+		PrivateKeyPath:       "./cert/key.pem",
+		CaCertificatePath:    "./cert/ca.pems",
+		SkipCertVerification: true,
+		GrpcPort:             "8080",
+		AdvertiseRoutes:      true,
+		Endpoint:             "localhost",
+		ClusterSize:          1,
+		SyncRate:             1,
+		InterClusterChance:   0.1,
+		BranchRate:           2,
+		KeepAliveTime:        4,
+		InfectionCount:       1,
+		Timeout:              2,
+		PruneTime:            20,
+	}
+}
+
+func TestConfigurationCertificatePathEmpty(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.CertificatePath = ""
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func TestConfigurationPrivateKeyPathEmpty(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.PrivateKeyPath = ""
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func TestConfigurationCaCertificatePathEmpty(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.CaCertificatePath = ""
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func TestConfigurationGrpcPortEmpty(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.GrpcPort = ""
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func TestClusterSizeZero(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.ClusterSize = 0
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func SyncRateZero(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.SyncRate = 0
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func BranchRateZero(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.BranchRate = 0
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func InfectionCountZero(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.InfectionCount = 0
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func KeepAliveRateZero(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.KeepAliveTime = 0
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func TestValidCOnfiguration(t *testing.T) {
+	conf := getExampleConfiguration()
+
+	err := ValidateConfiguration(conf)
+
+	if err != nil {
+		t.Error(err)
+	}
+}
+
+func TestTimeout(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.Timeout = 0
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatal(`error should be thrown`)
+	}
+}
+
+func TestPruneTimeZero(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.PruneTime = 0
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatalf(`Error should be thrown`)
+	}
+}
+
+func TestPruneTimeLessThanKeepAliveTime(t *testing.T) {
+	conf := getExampleConfiguration()
+	conf.PruneTime = 1
+
+	err := ValidateConfiguration(conf)
+
+	if err == nil {
+		t.Fatalf(`Error should be thrown`)
+	}
+}

pkg/conn/cluster.go

@@ -0,0 +1,75 @@
+package conn
+
+import (
+	"errors"
+	"math"
+	"math/rand"
+	"slices"
+)
+
+// ConnCluster splits nodes into clusters where nodes in a cluster communicate
+// frequently and nodes outside of a cluster communicate infrequently
+type ConnCluster interface {
+	GetNeighbours(global []string, selfId string) []string
+	GetInterCluster(global []string, selfId string) string
+}
+
+type ConnClusterImpl struct {
+	clusterSize int
+}
+
+func binarySearch(global []string, selfId string, groupSize int) (int, int) {
+	slices.Sort(global)
+
+	lower := 0
+	higher := len(global) - 1
+	mid := (lower + higher) / 2
+
+	for (higher+1)-lower > groupSize {
+		if global[mid] < selfId {
+			lower = mid + 1
+		} else if global[mid] > selfId {
+			higher = mid - 1
+		} else {
+			break
+		}
+
+		mid = (lower + higher) / 2
+	}
+
+	return lower, int(math.Min(float64(lower+groupSize), float64(len(global))))
+}
+
+// GetNeighbours return the neighbours 'nearest' to you. In this implementation the
+// neighbours aren't actually the ones nearest to you but just the ones nearest
+// to you alphabetically. Perform binary search to get the total group
+func (i *ConnClusterImpl) GetNeighbours(global []string, selfId string) []string {
+	slices.Sort(global)
+
+	lower, higher := binarySearch(global, selfId, i.clusterSize)
+	// slice the list to get the neighbours
+	return global[lower:higher]
+}
+
+// GetInterCluster get nodes not in your cluster. Every round there is a given chance
+// you will communicate with a random node that is not in your cluster.
+func (i *ConnClusterImpl) GetInterCluster(global []string, selfId string) string {
+	// Doesn't matter if not in it. Get index of where the node 'should' be
+	index, _ := binarySearch(global, selfId, 1)
+	numClusters := math.Ceil(float64(len(global)) / float64(i.clusterSize))
+
+	randomCluster := rand.Intn(int(numClusters)-1) + 1
+
+	neighbourIndex := (index + randomCluster) % len(global)
+	return global[neighbourIndex]
+}
+
+func NewConnCluster(clusterSize int) (ConnCluster, error) {
+	log2Cluster := math.Log2(float64(clusterSize))
+
+	if float64((log2Cluster))-log2Cluster != 0 {
+		return nil, errors.New("cluster must be a power of 2")
+	}
+
+	return &ConnClusterImpl{clusterSize: clusterSize}, nil
+}

pkg/conn/cluster_test.go

@@ -0,0 +1,116 @@
+package conn
+
+import (
+	"math/rand"
+	"slices"
+	"testing"
+)
+
+func TestGetNeighboursClusterSizeTwo(t *testing.T) {
+	cluster := &ConnClusterImpl{
+		clusterSize: 2,
+	}
+	neighbours := []string{
+		"a",
+		"b",
+		"c",
+		"d",
+	}
+
+	result := cluster.GetNeighbours(neighbours, "b")
+
+	if len(result) != 2 {
+		t.Fatalf(`neighbour length should be 2`)
+	}
+
+	if result[0] != "a" && result[1] != "b" {
+		t.Fatalf(`Expected value b`)
+	}
+}
+
+func TestGetNeighboursGlobalListLessThanClusterSize(t *testing.T) {
+	cluster := &ConnClusterImpl{
+		clusterSize: 4,
+	}
+
+	neighbours := []string{
+		"a",
+		"b",
+		"c",
+	}
+
+	result := cluster.GetNeighbours(neighbours, "a")
+
+	if len(result) != 3 {
+		t.Fatalf(`neighbour length should be 3`)
+	}
+
+	slices.Sort(result)
+
+	if !slices.Equal(result, neighbours) {
+		t.Fatalf(`Cluster and neighbours should be equal`)
+	}
+}
+
+func TestGetNeighboursClusterSize4(t *testing.T) {
+	cluster := &ConnClusterImpl{
+		clusterSize: 4,
+	}
+
+	neighbours := []string{
+		"a", "b", "c", "d", "e", "f", "g", "h", "i", "j",
+		"k", "l", "m", "n", "o",
+	}
+
+	result := cluster.GetNeighbours(neighbours, "k")
+
+	if len(result) != 4 {
+		t.Fatalf(`cluster size must be 4`)
+	}
+
+	slices.Sort(result)
+
+	if !slices.Equal(neighbours[8:12], result) {
+		t.Fatalf(`Cluster should be i, j, k, l`)
+	}
+}
+
+func TestGetNeighboursClusterSize4OneReturned(t *testing.T) {
+	cluster := &ConnClusterImpl{
+		clusterSize: 4,
+	}
+
+	neighbours := []string{
+		"a", "b", "c", "d", "e", "f", "g", "h", "i", "j",
+		"k", "l", "m", "n", "o",
+	}
+
+	result := cluster.GetNeighbours(neighbours, "o")
+
+	if len(result) != 3 {
+		t.Fatalf(`Cluster should be of length 3`)
+	}
+
+	if !slices.Equal(neighbours[12:15], result) {
+		t.Fatalf(`Cluster should be m, n, o`)
+	}
+}
+
+func TestInterClusterNotInCluster(t *testing.T) {
+	rand.Seed(1)
+	cluster := &ConnClusterImpl{
+		clusterSize: 4,
+	}
+
+	global := []string{
+		"a", "b", "c", "d", "e", "f", "g", "h", "i", "j",
+		"k", "l", "m", "n", "o",
+	}
+
+	neighbours := cluster.GetNeighbours(global, "c")
+	interCluster := cluster.GetInterCluster(global, "c")
+
+	if slices.Contains(neighbours, interCluster) {
+		t.Fatalf(`intercluster cannot be in your cluster`)
+	}
+}

pkg/conn/connection.go

@@ -18,6 +18,8 @@ type PeerConnection interface {
 	GetClient() (*grpc.ClientConn, error)
 }
 
+type PeerConnectionFactory = func(clientConfig *tls.Config, server string) (PeerConnection, error)
+
 // WgCtrlConnection implements PeerConnection.
 type WgCtrlConnection struct {
 	clientConfig *tls.Config
@@ -26,12 +28,12 @@ type WgCtrlConnection struct {
 }
 
 // NewWgCtrlConnection creates a new instance of a WireGuard control connection
-func NewWgCtrlConnection(clientConfig *tls.Config, server string) (*WgCtrlConnection, error) {
+func NewWgCtrlConnection(clientConfig *tls.Config, server string) (PeerConnection, error) {
 	var conn WgCtrlConnection
 	conn.clientConfig = clientConfig
 	conn.endpoint = server
 
-	if err := conn.createGrpcConn(); err != nil {
+	if err := conn.CreateGrpcConnection(); err != nil {
 		return nil, err
 	}
 
@@ -39,7 +41,7 @@ func NewWgCtrlConnection(clientConfig *tls.Config, server string) (*WgCtrlConnec
 }
 
 // ConnectWithToken: Connects to a new gRPC peer given the address of the other server.
-func (c *WgCtrlConnection) createGrpcConn() error {
+func (c *WgCtrlConnection) CreateGrpcConnection() error {
 	conn, err := grpc.Dial(c.endpoint,
 		grpc.WithTransportCredentials(credentials.NewTLS(c.clientConfig)))
 
@@ -62,7 +64,7 @@ func (c *WgCtrlConnection) GetClient() (*grpc.ClientConn, error) {
 	var err error = nil
 
 	if c.conn == nil {
-		err = errors.New("The client's config does not exist")
+		err = errors.New("the client's config does not exist")
 	}
 
 	return c.conn, err

pkg/conn/connectionmanager.go

@@ -34,10 +34,11 @@ type ConnectionManagerImpl struct {
 	clientConnections map[string]PeerConnection
 	serverConfig      *tls.Config
 	clientConfig      *tls.Config
+	connFactory       PeerConnectionFactory
 }
 
 // Create a new instance of a connection manager.
-type NewConnectionManageParams struct {
+type NewConnectionManagerParams struct {
 	// The path to the certificate
 	CertificatePath string
 	// The private key of the node
@@ -45,11 +46,12 @@ type NewConnectionManageParams struct {
 	// Whether or not to skip certificate verification
 	SkipCertVerification bool
 	CaCert               string
+	ConnFactory          PeerConnectionFactory
 }
 
 // NewConnectionManager: Creates a new instance of a ConnectionManager or an error
 // if something went wrong.
-func NewConnectionManager(params *NewConnectionManageParams) (ConnectionManager, error) {
+func NewConnectionManager(params *NewConnectionManagerParams) (ConnectionManager, error) {
 	cert, err := tls.LoadX509KeyPair(params.CertificatePath, params.PrivateKey)
 
 	if err != nil {
@@ -94,10 +96,12 @@ func NewConnectionManager(params *NewConnectionManageParams) (ConnectionManager,
 	}
 
 	connections := make(map[string]PeerConnection)
-	connMgr := ConnectionManagerImpl{sync.RWMutex{},
+	connMgr := ConnectionManagerImpl{
+		sync.RWMutex{},
 		connections,
 		serverConfig,
 		clientConfig,
+		params.ConnFactory,
 	}
 
 	return &connMgr, nil
@@ -127,7 +131,7 @@ func (m *ConnectionManagerImpl) AddConnection(endPoint string) (PeerConnection,
 		return conn, nil
 	}
 
-	connections, err := NewWgCtrlConnection(m.clientConfig, endPoint)
+	connections, err := m.connFactory(m.clientConfig, endPoint)
 
 	if err != nil {
 		return nil, err

pkg/conn/connectionmanager_test.go

@@ -0,0 +1,145 @@
+package conn
+
+import (
+	"crypto/tls"
+	"errors"
+	"log"
+	"testing"
+)
+
+func getConnectionManagerParams() *NewConnectionManagerParams {
+	return &NewConnectionManagerParams{
+		CertificatePath:      "./test/cert.pem",
+		PrivateKey:           "./test/priv.pem",
+		CaCert:               "./test/cacert.pem",
+		SkipCertVerification: false,
+		ConnFactory:          MockFactory,
+	}
+}
+
+func TestNewConnectionManagerCertificatePathDoesNotExist(t *testing.T) {
+	params := getConnectionManagerParams()
+	params.CertificatePath = "./cert/sdfjdskjdsjkd.pem"
+
+	_, err := NewConnectionManager(params)
+
+	if err == nil {
+		t.Fatalf(`Expected error as certificate does not exist`)
+	}
+}
+
+func TestNewConnectionManagerPrivateKeyDoesNotExist(t *testing.T) {
+	params := getConnectionManagerParams()
+	params.PrivateKey = "./cert/sdjdjdks.pem"
+
+	_, err := NewConnectionManager(params)
+
+	if err == nil {
+		t.Fatalf(`Expected error as private key does not exist`)
+	}
+}
+
+func TestNewConnectionManagerCACertDoesNotExistAndVerify(t *testing.T) {
+	params := getConnectionManagerParams()
+	params.CaCert = "./cert/sdjdsjdksjdks.pem"
+	params.SkipCertVerification = false
+
+	_, err := NewConnectionManager(params)
+
+	if err == nil {
+		t.Fatal(`Expected error as ca cert does not exist and skip is false`)
+	}
+}
+
+func TestNewConnectionManagerCACertDoesNotExistAndNotVerify(t *testing.T) {
+	params := getConnectionManagerParams()
+	params.CaCert = ""
+	params.SkipCertVerification = true
+
+	_, err := NewConnectionManager(params)
+
+	if err != nil {
+		t.Fatal(`an error should not be thrown`)
+	}
+}
+
+func TestGetConnectionConnectionDoesNotExistAddsConnection(t *testing.T) {
+	params := getConnectionManagerParams()
+
+	m, _ := NewConnectionManager(params)
+
+	conn, err := m.GetConnection("abc-123.com")
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if conn == nil {
+		t.Fatal(`the connection should not be nil`)
+	}
+
+	conn2, _ := m.GetConnection("abc-123.com")
+
+	if conn != conn2 {
+		log.Fatalf(`should return the same connection instance`)
+	}
+}
+
+func TestAddConnectionThrowsAnErrorIfFactoryThrowsError(t *testing.T) {
+	params := getConnectionManagerParams()
+	params.ConnFactory = func(clientConfig *tls.Config, server string) (PeerConnection, error) {
+		return nil, errors.New("this is an error")
+	}
+
+	m, _ := NewConnectionManager(params)
+
+	_, err := m.AddConnection("abc-123.com")
+
+	if err == nil || err.Error() != "this is an error" {
+		t.Error(err)
+	}
+}
+
+func TestAddConnectionConnectionDoesNotExist(t *testing.T) {
+	params := getConnectionManagerParams()
+
+	m, _ := NewConnectionManager(params)
+
+	conn, err := m.AddConnection("abc-123.com")
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if conn == nil {
+		t.Fatal(`connection should not be nil`)
+	}
+
+	conn1, _ := m.GetConnection("abc-123.com")
+
+	if conn != conn1 {
+		t.Fatal(`underlying connections should be the same`)
+	}
+}
+
+func TestHasConnectionConnectionDoesNotExist(t *testing.T) {
+	params := getConnectionManagerParams()
+
+	m, _ := NewConnectionManager(params)
+
+	if m.HasConnection("abc-123.com") {
+		t.Fatal(`should return that the connection does not exist`)
+	}
+}
+
+func TestHasConnectionConnectionExists(t *testing.T) {
+	params := getConnectionManagerParams()
+
+	m, _ := NewConnectionManager(params)
+
+	m.AddConnection("abc-123.com")
+
+	if !m.HasConnection("abc-123.com") {
+		t.Fatal(`should return that the connection exists`)
+	}
+}

pkg/conn/connectionserver.go

@@ -16,9 +16,7 @@ type ConnectionServer struct {
 	// tlsConfiguration of the server
 	serverConfig *tls.Config
 	// server an instance of the grpc server
-	server *grpc.Server
-	// the authentication service to authenticate nodes
-	authProvider rpc.AuthenticationServer
+	server *grpc.Server // the authentication service to authenticate nodes
 	// the ctrl service to manage node
 	ctrlProvider rpc.MeshCtrlServerServer
 	// the sync service to synchronise nodes
@@ -30,7 +28,6 @@ type ConnectionServer struct {
 // NewConnectionServerParams contains params for creating a new connection server
 type NewConnectionServerParams struct {
 	Conf         *conf.WgMeshConfiguration
-	AuthProvider rpc.AuthenticationServer
 	CtrlProvider rpc.MeshCtrlServerServer
 	SyncProvider rpc.SyncServiceServer
 }
@@ -59,14 +56,12 @@ func NewConnectionServer(params *NewConnectionServerParams) (*ConnectionServer,
 		grpc.Creds(credentials.NewTLS(serverConfig)),
 	)
 
-	authProvider := params.AuthProvider
 	ctrlProvider := params.CtrlProvider
 	syncProvider := params.SyncProvider
 
 	connServer := ConnectionServer{
 		serverConfig: serverConfig,
 		server:       server,
-		authProvider: authProvider,
 		ctrlProvider: ctrlProvider,
 		syncProvider: syncProvider,
 		Conf:         params.Conf,
@@ -78,7 +73,6 @@ func NewConnectionServer(params *NewConnectionServerParams) (*ConnectionServer,
 // Listen for incoming requests. Returns an error if something went wrong.
 func (s *ConnectionServer) Listen() error {
 	rpc.RegisterMeshCtrlServerServer(s.server, s.ctrlProvider)
-	rpc.RegisterAuthenticationServer(s.server, s.authProvider)
 
 	rpc.RegisterSyncServiceServer(s.server, s.syncProvider)
 

pkg/conn/stub.go

@@ -0,0 +1,51 @@
+package conn
+
+import (
+	"crypto/tls"
+
+	"google.golang.org/grpc"
+)
+
+type ConnectionManagerStub struct {
+	Endpoints map[string]PeerConnection
+}
+
+func (s *ConnectionManagerStub) AddConnection(endPoint string) (PeerConnection, error) {
+	mock := &PeerConnectionMock{}
+	s.Endpoints[endPoint] = mock
+	return mock, nil
+}
+
+func (s *ConnectionManagerStub) GetConnection(endPoint string) (PeerConnection, error) {
+	endpoint, ok := s.Endpoints[endPoint]
+
+	if !ok {
+		return s.AddConnection(endPoint)
+	}
+
+	return endpoint, nil
+}
+
+func (s *ConnectionManagerStub) HasConnection(endPoint string) bool {
+	_, ok := s.Endpoints[endPoint]
+	return ok
+}
+
+func (s *ConnectionManagerStub) Close() error {
+	return nil
+}
+
+type PeerConnectionMock struct {
+}
+
+func (c *PeerConnectionMock) Close() error {
+	return nil
+}
+
+func (c *PeerConnectionMock) GetClient() (*grpc.ClientConn, error) {
+	return &grpc.ClientConn{}, nil
+}
+
+var MockFactory PeerConnectionFactory = func(clientConfig *tls.Config, server string) (PeerConnection, error) {
+	return &PeerConnectionMock{}, nil
+}

pkg/conn/test/cacert.pem

@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

pkg/conn/test/caprivate.pem

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDJ5hOmzilimA/z
+M5hYP7CQf4iRmICtSbVLgt6/rTDPp3JsGGQWZ4pZNofzGnGa7aEMoXS2Ztl7GzZb
+r1p4+rd6MBbVt8XZ/hP+X4zasCXi/YubG0TYyBuAt+JrcYb0cbsTBkMXXnFcNIXD
+feYFsNq+pfyJwq2ElMUUZ6SQmVhHovn1Wk9Fv4t2GJMhmUcObrSIoYdgo4Vf9CfQ
+nn0PCaRf+RjspY/Kz33oyqDI6xJxI0rfJR7f9B6ZKosfAkt4oTTfT9P8w/d1I95o
+BENhDkalgkdJCuNJ/AwKGxZrYf/Paefcc91HheauObjBYPFrSn6bUj3LMJEfj4Ie
+BK+fOZCfAgMBAAECggEADqAjoUxC9Dj2wtPkf9QRSs5qSr3E6Iiz4OX4k+MMa6aC
+I/F6YqMagw7vtz0dqK75ISybA1GdBI16mRaxU5056FiOdunqo7mDokQytG7ZN8HN
+OK23hYqtb1wiw0zEjXWlqyGjf5BgXuERJZG7tYLTvcbRbftTzYxnYGyHn8/z9LBp
+GsTJ5X8XMLM5+bTvg1Ovv5s0q31FCeqAuw+auHH4pBNP+ylV6dF5XOWq4HO3TJ2b
+grHxWB94JZChZnDC/K+HxQ6aHJfbZ5XCoXfIaIVkoXfnyPzgjvgK+/IpHEF8f/3I
+uT/NBiArTpRl29pX5flEO4R121VaW93eM1tuzL32VQKBgQD6Trctx9SYuhzgfiO7
+kdefvR43Kl9SFyEw3hN3HW1cxSNGCCFotjmdem+QdtMBtUd27UJ9tuiKJC0lcCER
+t3WRz4kVd/cb0eC1DPzpGHA81o1rUUR3nMr1o7aBfvQ06VAxFUrFAOPpF8nD7tI4
+0CiOh7/sL1ElThA3bOPUpXkYHQKBgQDOfYbP8dppIkC8pRTnHWe0qUY0G4YXxg7r
+UtTo4GYOLJeKH/MKoK8MjBDS5VN5n5TAHJ8yUVzhpWXZIPIGzNEhIRDMa56sRPgI
+9mLJNs5z/ZIxd/7ZQbDHrD4T3PKeTjzVUtjXrhLowokPlPB/RMQL6ZT+qMao+3bS
+fDITSfLG6wKBgBpbcZSDh1JxvpqxDagxqkfqzSS39IObZeZUbC5NzfdH1vgH4SS6
+k4SOoPLQYFW8tgLC5w5/1Sq+tnZLwV+xNtMczG2TTVUDm6rU7EjLRv5RBWE4lIIX
+45NMIuqt6J8ttkEE4fOurVEdLSTRoBdVa//eMYp4TQ4lkzWS5Ma+ierNAoGAYO3z
+1rFFQYzerq8ffM4E3H2JgvRYodhLMJQVdavAvG6aRDBzOk3rXgxx6U3VPYZ3oSbO
+ZCRlYVbu1FnuwtpqYQ7Qf+UU+vD1Ld/ax3F+wFwLwET/0KRRg6mLCm/xQ/ad/9WA
+DN6d6b1H8ZSMwHFbRexEELbRaomAYZYDO6K+4DkCgYEAv5De85hPnWtAvKhPzwQi
+9mtyWo/cfQgtwL8IKNu6hBHl5RXDpPgX/+pNbXLJfBPwVR3H62x1CMYJDkWVuE6/
+ZjtF7FSucZMz/mR6r1GhSOXy3YLwQ6JLPjjKzvnEjahGlKwALJNL0O2ZucjsZxHE
+PM4rmhRZT9opiapiltEhRm0=
+-----END PRIVATE KEY-----

pkg/conn/test/cert.pem

@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

pkg/conn/test/priv.pem

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----
+MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDVgcLtNU5AYfPM
+L/mE5PyC7YYKvZn2mt6vEiJ7M/6EzYeTXFeYexD5ZqHgewGEd1fwiQWQsATsWd+E
+M4OnCAXAaNiOH6gGY7FR8CThfT+k8yIGPrl1BovzHHYSOrekna17UFeIyFMHDPIj
+l4d2WiJPvmNn5PhLEppPHPBWPhl3J3sMrSbqyRuYbttaoFIzN8mFcikixLg0SnBP
+twlLC72ah9G+MF5CwEcU/E0bYbLQZXv+WhG5aw5JEzesK2GLxVNgM0xXB7hSyLoX
+1wBc8DdQyLCMkOp55Hl04UKTxtVE82MiuAOVqMUuKFjRu2a1C+/Gbk/PS5SHgenG
+jdZ8sZGpAgMBAAECggEARJNAggLYhtpPPVp9WJ9ZsU3L+0AppujYND/tXkf1bD89
+V+nVYq7IZWp+/MRVWPAiCSphZLb8ZdN59JK9KtVrT4D9aSymwaKcjfZFSj15xyem
+Wn4j///hzGxsSe+dE1znnw9PhindbQrN7Pua8TsDATzj3bdPvoETmexwDysz765i
+u4zXvxP+xAessz1OYa5IUaDXdlWOf0e1zNXWwanjRggzCeWR3lTofG49GX087oVC
+Sb9ASy+AScnOlwpTdQ8sKy1r9gXmE5ey4AULVb0nJ8LDvrCoBBhKBtVE5mJHepE6
+bdC9l6poL6roGvHfMAo3SmiUUT5XceqUxBtHcyHX3wKBgQD1uh+Dv0PrH3CTW9cF
+bwHL1rmQNJrbDzDAaounGBe9mcot1RrBhyQAoGw1no4c+QWDAwYRuBP2+Rp6JLU/
+XnEXSyN85rJN6LajlrLEr+BNmKw6ghNsnAFUZBLaJ7epRi6OjACUwmtvH6hRIef8
+aMg4WiOyDT+Z4Xe81pdXb91HXwKBgQDebs3idgVEau3LCKGYnqvmUhzv8iiQiJmD
+R29o2G5Xrahf3r1O5gJdGLO1DaCBtdrI7J4xUOlM935KaEYFe5B7RVGXg23tNWgb
+2M+YQqu5qz61bDxhg7dGkegHrdvKNcSkV6GUSm5w9rdxJlY8+l45p/7QpSkatcbd
+IRiVzMNr9wKBgQC/+Z5fbpFgYxqvdaPicdxkZShqOj71f8OlwFfEvrTlgv4KmqAh
+rDP7bVm89leu2PpuZXFbbIXkgK8n1//mNyGBgkmCbjXFWlc+LSETOxixZuK/fxov
+0x3S0bBM0ZTSYatD4KsfjVkj4wa8BBJbB33NUNbsZx9WWGkUlk58mD+3XwKBgQDV
+mgR+n6WJQUIfwqckH+Ol517AkYSg33zEE9qKDaVQ74QMpKKY3MqSSkFw8agcR93V
+K1zysOeJsPYHUEFFzJY/up6S6HSs4aebbkZUylmMkEVFBa6qWkmrLDxs+2lgsuem
+hjy1YhDSzCn3L8CLCEdqCMjr5l8ltkBFZB3u5NcZmwKBgHE9ODedQm783JfvDNBb
+lB/IoUjMhMR0J2vHC3zxgTU4nIK+MR0vXvA7fmZebpaQNwYrHY9gvrL0/QevOrmG
+PtXlkQ9GITMxTlqfHWV5jXZuRBIGTqh1QW3tKbVAhUhNlM0XDNBmBvjKIFjxUIo3
+zMRw/o4R4cIaazyVxguZbsa2
+-----END PRIVATE KEY-----

pkg/conn/window.go

@@ -0,0 +1,84 @@
+package conn
+
+import (
+	"errors"
+	"slices"
+
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+)
+
+// ConnectionWindow maintains a sliding window of connections between users
+type ConnectionWindow interface {
+	// GetWindow is a list of connections to choose from
+	GetWindow() []string
+	// SlideConnection removes a node from the window and adds a random node
+	// not already in the window. connList represents the list of possible
+	// connections to choose from
+	SlideConnection(connList []string) error
+	// PushConneciton is used when connection list less than window size.
+	PutConnection(conn []string) error
+	// IsFull returns true if the window is full. In which case we must slide the window
+	IsFull() bool
+}
+
+type ConnectionWindowImpl struct {
+	window     []string
+	windowSize int
+}
+
+// GetWindow gets the current list of active connections in
+// the window
+func (c *ConnectionWindowImpl) GetWindow() []string {
+	return c.window
+}
+
+// SlideConnection slides the connection window by one shuffling items
+// in the windows
+func (c *ConnectionWindowImpl) SlideConnection(connList []string) error {
+	// If the number of peer connections is less than the length of the window
+	// then exit early. Can't slide the window it should contain all nodes!
+	if len(c.window) < c.windowSize {
+		return nil
+	}
+
+	filter := func(node string) bool {
+		return !slices.Contains(c.window, node)
+	}
+
+	pool := lib.Filter(connList, filter)
+	newNode := lib.RandomSubsetOfLength(pool, 1)
+
+	if len(newNode) == 0 {
+		return errors.New("could not slide window")
+	}
+
+	for i := len(c.window) - 1; i >= 1; i-- {
+		c.window[i] = c.window[i-1]
+	}
+
+	c.window[0] = newNode[0]
+	return nil
+}
+
+// PutConnection put random connections in the connection
+func (c *ConnectionWindowImpl) PutConnection(connList []string) error {
+	if len(c.window) >= c.windowSize {
+		return errors.New("cannot place connection. Window full need to slide")
+	}
+
+	c.window = lib.RandomSubsetOfLength(connList, c.windowSize)
+	return nil
+}
+
+func (c *ConnectionWindowImpl) IsFull() bool {
+	return len(c.window) >= c.windowSize
+}
+
+func NewConnectionWindow(windowLength int) ConnectionWindow {
+	window := &ConnectionWindowImpl{
+		window:     make([]string, 0),
+		windowSize: windowLength,
+	}
+
+	return window
+}

pkg/crdt/datastore.go

@@ -0,0 +1,493 @@
+package crdt
+
+import (
+	"bytes"
+	"encoding/gob"
+	"fmt"
+	"net"
+	"slices"
+	"strings"
+	"time"
+
+	"github.com/tim-beatham/wgmesh/pkg/conf"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+	logging "github.com/tim-beatham/wgmesh/pkg/log"
+	"github.com/tim-beatham/wgmesh/pkg/mesh"
+	"golang.zx2c4.com/wireguard/wgctrl"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+)
+
+type Route struct {
+	Destination string
+	Path        []string
+}
+
+// GetDestination implements mesh.Route.
+func (r *Route) GetDestination() *net.IPNet {
+	_, ipnet, _ := net.ParseCIDR(r.Destination)
+	return ipnet
+}
+
+// GetHopCount implements mesh.Route.
+func (r *Route) GetHopCount() int {
+	return len(r.Path)
+}
+
+// GetPath implements mesh.Route.
+func (r *Route) GetPath() []string {
+	return r.Path
+}
+
+type MeshNode struct {
+	HostEndpoint string
+	WgEndpoint   string
+	PublicKey    string
+	WgHost       string
+	Timestamp    int64
+	Routes       map[string]Route
+	Alias        string
+	Description  string
+	Services     map[string]string
+	Type         string
+	Tombstone    bool
+}
+
+// Mark: marks the node is unreachable. This is not broadcast on
+// syncrhonisation
+func (m *TwoPhaseStoreMeshManager) Mark(nodeId string) {
+	m.store.Mark(nodeId)
+}
+
+// GetHostEndpoint: gets the gRPC endpoint of the node
+func (n *MeshNode) GetHostEndpoint() string {
+	return n.HostEndpoint
+}
+
+// GetPublicKey: gets the public key of the node
+func (n *MeshNode) GetPublicKey() (wgtypes.Key, error) {
+	return wgtypes.ParseKey(n.PublicKey)
+}
+
+// GetWgEndpoint(): get IP and port of the wireguard endpoint
+func (n *MeshNode) GetWgEndpoint() string {
+	return n.WgEndpoint
+}
+
+// GetWgHost: get the IP address of the WireGuard node
+func (n *MeshNode) GetWgHost() *net.IPNet {
+	_, ipnet, _ := net.ParseCIDR(n.WgHost)
+	return ipnet
+}
+
+// GetTimestamp: get the UNIX time stamp of the ndoe
+func (n *MeshNode) GetTimeStamp() int64 {
+	return n.Timestamp
+}
+
+// GetRoutes: returns the routes that the nodes provides
+func (n *MeshNode) GetRoutes() []mesh.Route {
+	routes := make([]mesh.Route, len(n.Routes))
+
+	for index, route := range lib.MapValues(n.Routes) {
+		routes[index] = &Route{
+			Destination: route.Destination,
+			Path:        route.Path,
+		}
+	}
+
+	return routes
+}
+
+// GetIdentifier: returns the identifier of the node
+func (m *MeshNode) GetIdentifier() string {
+	ipv6 := m.WgHost[:len(m.WgHost)-4]
+
+	constituents := strings.Split(ipv6, ":")
+	constituents = constituents[4:]
+	return strings.Join(constituents, ":")
+}
+
+// GetDescription: returns the description for this node
+func (n *MeshNode) GetDescription() string {
+	return n.Description
+}
+
+// GetAlias: associates the node with an alias. Potentially used
+// for DNS and so forth.
+func (n *MeshNode) GetAlias() string {
+	return n.Alias
+}
+
+// GetServices: returns a list of services offered by the node
+func (n *MeshNode) GetServices() map[string]string {
+	return n.Services
+}
+
+func (n *MeshNode) GetType() conf.NodeType {
+	return conf.NodeType(n.Type)
+}
+
+type MeshSnapshot struct {
+	Nodes map[string]MeshNode
+}
+
+// GetNodes() returns the nodes in the mesh
+func (m *MeshSnapshot) GetNodes() map[string]mesh.MeshNode {
+	newMap := make(map[string]mesh.MeshNode)
+
+	for key, value := range m.Nodes {
+		newMap[key] = &MeshNode{
+			HostEndpoint: value.HostEndpoint,
+			PublicKey:    value.PublicKey,
+			WgHost:       value.WgHost,
+			WgEndpoint:   value.WgEndpoint,
+			Timestamp:    value.Timestamp,
+			Routes:       value.Routes,
+			Alias:        value.Alias,
+			Description:  value.Description,
+			Services:     value.Services,
+			Type:         value.Type,
+		}
+	}
+
+	return newMap
+}
+
+type TwoPhaseStoreMeshManager struct {
+	MeshId    string
+	IfName    string
+	Client    *wgctrl.Client
+	LastClock uint64
+	conf      *conf.WgMeshConfiguration
+	store     *TwoPhaseMap[string, MeshNode]
+}
+
+// AddNode() adds a node to the mesh
+func (m *TwoPhaseStoreMeshManager) AddNode(node mesh.MeshNode) {
+	crdt, ok := node.(*MeshNode)
+
+	if !ok {
+		panic("node must be of type mesh node")
+	}
+
+	crdt.Routes = make(map[string]Route)
+	crdt.Services = make(map[string]string)
+	crdt.Timestamp = time.Now().Unix()
+
+	m.store.Put(crdt.PublicKey, *crdt)
+}
+
+// GetMesh() returns a snapshot of the mesh provided by the mesh provider.
+func (m *TwoPhaseStoreMeshManager) GetMesh() (mesh.MeshSnapshot, error) {
+	return &MeshSnapshot{
+		Nodes: m.store.AsMap(),
+	}, nil
+}
+
+// GetMeshId() returns the ID of the mesh network
+func (m *TwoPhaseStoreMeshManager) GetMeshId() string {
+	return m.MeshId
+}
+
+// Save() saves the mesh network
+func (m *TwoPhaseStoreMeshManager) Save() []byte {
+	snapshot := m.store.Snapshot()
+
+	var buf bytes.Buffer
+	enc := gob.NewEncoder(&buf)
+
+	err := enc.Encode(*snapshot)
+
+	if err != nil {
+		logging.Log.WriteInfof(err.Error())
+	}
+
+	return buf.Bytes()
+}
+
+// Load() loads a mesh network
+func (m *TwoPhaseStoreMeshManager) Load(bs []byte) error {
+	buf := bytes.NewBuffer(bs)
+	dec := gob.NewDecoder(buf)
+
+	var snapshot TwoPhaseMapSnapshot[string, MeshNode]
+	err := dec.Decode(&snapshot)
+
+	m.store.Merge(snapshot)
+	return err
+}
+
+// GetDevice() get the device corresponding with the mesh
+func (m *TwoPhaseStoreMeshManager) GetDevice() (*wgtypes.Device, error) {
+	dev, err := m.Client.Device(m.IfName)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return dev, nil
+}
+
+// HasChanges returns true if we have changes since last time we synced
+func (m *TwoPhaseStoreMeshManager) HasChanges() bool {
+	clockValue := m.store.GetHash()
+	return clockValue != m.LastClock
+}
+
+// Record that we have changes and save the corresponding changes
+func (m *TwoPhaseStoreMeshManager) SaveChanges() {
+	clockValue := m.store.GetHash()
+	m.LastClock = clockValue
+}
+
+// UpdateTimeStamp: update the timestamp of the given node
+func (m *TwoPhaseStoreMeshManager) UpdateTimeStamp(nodeId string) error {
+	if !m.store.Contains(nodeId) {
+		return fmt.Errorf("datastore: %s does not exist in the mesh", nodeId)
+	}
+
+	// Sort nodes by their public key
+	peers := m.GetPeers()
+	slices.Sort(peers)
+
+	if len(peers) == 0 {
+		return nil
+	}
+
+	peerToUpdate := peers[0]
+
+	if uint64(time.Now().Unix())-m.store.Clock.GetTimestamp(peerToUpdate) > 3*uint64(m.conf.KeepAliveTime) {
+		m.store.Mark(peerToUpdate)
+
+		if len(peers) < 2 {
+			return nil
+		}
+
+		peerToUpdate = peers[1]
+	}
+
+	if peerToUpdate != nodeId {
+		return nil
+	}
+
+	// Refresh causing node to update it's time stamp
+	node := m.store.Get(nodeId)
+	node.Timestamp = time.Now().Unix()
+	m.store.Put(nodeId, node)
+	return nil
+}
+
+// AddRoutes: adds routes to the given node
+func (m *TwoPhaseStoreMeshManager) AddRoutes(nodeId string, routes ...mesh.Route) error {
+	if !m.store.Contains(nodeId) {
+		return fmt.Errorf("datastore: %s does not exist in the mesh", nodeId)
+	}
+
+	if len(routes) == 0 {
+		return nil
+	}
+
+	node := m.store.Get(nodeId)
+
+	changes := false
+
+	for _, route := range routes {
+		prevRoute, ok := node.Routes[route.GetDestination().String()]
+
+		if !ok || route.GetHopCount() < prevRoute.GetHopCount() {
+			changes = true
+
+			node.Routes[route.GetDestination().String()] = Route{
+				Destination: route.GetDestination().String(),
+				Path:        route.GetPath(),
+			}
+		}
+	}
+
+	if changes {
+		m.store.Put(nodeId, node)
+	}
+
+	return nil
+}
+
+// DeleteRoutes: deletes the routes from the node
+func (m *TwoPhaseStoreMeshManager) RemoveRoutes(nodeId string, routes ...string) error {
+	if !m.store.Contains(nodeId) {
+		return fmt.Errorf("datastore: %s does not exist in the mesh", nodeId)
+	}
+
+	if len(routes) == 0 {
+		return nil
+	}
+
+	node := m.store.Get(nodeId)
+
+	for _, route := range routes {
+		delete(node.Routes, route)
+	}
+
+	return nil
+}
+
+// GetSyncer: returns the automerge syncer for sync
+func (m *TwoPhaseStoreMeshManager) GetSyncer() mesh.MeshSyncer {
+	return NewTwoPhaseSyncer(m)
+}
+
+// GetNode get a particular not within the mesh
+func (m *TwoPhaseStoreMeshManager) GetNode(nodeId string) (mesh.MeshNode, error) {
+	if !m.store.Contains(nodeId) {
+		return nil, fmt.Errorf("datastore: %s does not exist in the mesh", nodeId)
+	}
+
+	node := m.store.Get(nodeId)
+	return &node, nil
+}
+
+// NodeExists: returns true if a particular node exists false otherwise
+func (m *TwoPhaseStoreMeshManager) NodeExists(nodeId string) bool {
+	return m.store.Contains(nodeId)
+}
+
+// SetDescription: sets the description of this automerge data type
+func (m *TwoPhaseStoreMeshManager) SetDescription(nodeId string, description string) error {
+	if !m.store.Contains(nodeId) {
+		return fmt.Errorf("datastore: %s does not exist in the mesh", nodeId)
+	}
+
+	node := m.store.Get(nodeId)
+	node.Description = description
+
+	m.store.Put(nodeId, node)
+	return nil
+}
+
+// SetAlias: set the alias of the nodeId
+func (m *TwoPhaseStoreMeshManager) SetAlias(nodeId string, alias string) error {
+	if !m.store.Contains(nodeId) {
+		return fmt.Errorf("datastore: %s does not exist in the mesh", nodeId)
+	}
+
+	node := m.store.Get(nodeId)
+	node.Description = alias
+
+	m.store.Put(nodeId, node)
+	return nil
+}
+
+// AddService: adds the service to the given node
+func (m *TwoPhaseStoreMeshManager) AddService(nodeId string, key string, value string) error {
+	if !m.store.Contains(nodeId) {
+		return fmt.Errorf("datastore: %s does not exist in the mesh", nodeId)
+	}
+
+	node := m.store.Get(nodeId)
+	node.Services[key] = value
+	m.store.Put(nodeId, node)
+	return nil
+}
+
+// RemoveService: removes the service form the node. throws an error if the service does not exist
+func (m *TwoPhaseStoreMeshManager) RemoveService(nodeId string, key string) error {
+	if !m.store.Contains(nodeId) {
+		return fmt.Errorf("datastore: %s does not exist in the mesh", nodeId)
+	}
+
+	node := m.store.Get(nodeId)
+	delete(node.Services, key)
+	m.store.Put(nodeId, node)
+	return nil
+}
+
+// Prune: prunes all nodes that have not updated their timestamp in
+func (m *TwoPhaseStoreMeshManager) Prune() error {
+	m.store.Prune()
+	return nil
+}
+
+// GetPeers: get a list of contactable peers
+func (m *TwoPhaseStoreMeshManager) GetPeers() []string {
+	nodes := lib.MapValues(m.store.AsMap())
+	nodes = lib.Filter(nodes, func(mn MeshNode) bool {
+		if mn.Type != string(conf.PEER_ROLE) {
+			return false
+		}
+
+		// If the node is marked as unreachable don't consider it a peer.
+		// this help to optimize convergence time for unreachable nodes.
+		// However advertising it to other nodes could result in flapping.
+		if m.store.IsMarked(mn.PublicKey) {
+			return false
+		}
+
+		return true
+	})
+
+	return lib.Map(nodes, func(mn MeshNode) string {
+		return mn.PublicKey
+	})
+}
+
+func (m *TwoPhaseStoreMeshManager) getRoutes(targetNode string) (map[string]Route, error) {
+	if !m.store.Contains(targetNode) {
+		return nil, fmt.Errorf("getRoute: cannot get route %s does not exist", targetNode)
+	}
+
+	node := m.store.Get(targetNode)
+	return node.Routes, nil
+}
+
+// GetRoutes(): Get all unique routes. Where the route with the least hop count is chosen
+func (m *TwoPhaseStoreMeshManager) GetRoutes(targetNode string) (map[string]mesh.Route, error) {
+	node, err := m.GetNode(targetNode)
+
+	if err != nil {
+		return nil, err
+	}
+
+	routes := make(map[string]mesh.Route)
+
+	// Add routes that the node directly has
+	for _, route := range node.GetRoutes() {
+		routes[route.GetDestination().String()] = route
+	}
+
+	// Work out the other routes in the mesh
+	for _, node := range m.GetPeers() {
+		nodeRoutes, err := m.getRoutes(node)
+
+		if err != nil {
+			return nil, err
+		}
+
+		for _, route := range nodeRoutes {
+			otherRoute, ok := routes[route.GetDestination().String()]
+
+			hopCount := route.GetHopCount()
+
+			if node != targetNode {
+				hopCount += 1
+			}
+
+			if !ok || route.GetHopCount()+1 < otherRoute.GetHopCount() {
+				routes[route.GetDestination().String()] = &Route{
+					Destination: route.GetDestination().String(),
+					Path:        append(route.GetPath(), m.GetMeshId()),
+				}
+			}
+		}
+	}
+
+	return routes, nil
+}
+
+// RemoveNode(): remove the node from the mesh
+func (m *TwoPhaseStoreMeshManager) RemoveNode(nodeId string) error {
+	if !m.store.Contains(nodeId) {
+		return fmt.Errorf("datastore: %s does not exist in the mesh", nodeId)
+	}
+
+	m.store.Remove(nodeId)
+	return nil
+}

pkg/crdt/factory.go

@@ -0,0 +1,78 @@
+package crdt
+
+import (
+	"fmt"
+	"hash/fnv"
+
+	"github.com/tim-beatham/wgmesh/pkg/conf"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+	"github.com/tim-beatham/wgmesh/pkg/mesh"
+)
+
+type TwoPhaseMapFactory struct{}
+
+func (f *TwoPhaseMapFactory) CreateMesh(params *mesh.MeshProviderFactoryParams) (mesh.MeshProvider, error) {
+	return &TwoPhaseStoreMeshManager{
+		MeshId: params.MeshId,
+		IfName: params.DevName,
+		Client: params.Client,
+		conf:   params.Conf,
+		store: NewTwoPhaseMap[string, MeshNode](params.NodeID, func(s string) uint64 {
+			h := fnv.New32a()
+			h.Write([]byte(s))
+			return uint64(h.Sum32())
+		}, uint64(3*params.Conf.KeepAliveTime)),
+	}, nil
+}
+
+type MeshNodeFactory struct {
+	Config conf.WgMeshConfiguration
+}
+
+func (f *MeshNodeFactory) Build(params *mesh.MeshNodeFactoryParams) mesh.MeshNode {
+	hostName := f.getAddress(params)
+
+	grpcEndpoint := fmt.Sprintf("%s:%s", hostName, f.Config.GrpcPort)
+
+	if f.Config.Role == conf.CLIENT_ROLE {
+		grpcEndpoint = "-"
+	}
+
+	return &MeshNode{
+		HostEndpoint: grpcEndpoint,
+		PublicKey:    params.PublicKey.String(),
+		WgEndpoint:   fmt.Sprintf("%s:%d", hostName, params.WgPort),
+		WgHost:       fmt.Sprintf("%s/128", params.NodeIP.String()),
+		Routes:       make(map[string]Route),
+		Description:  "",
+		Alias:        "",
+		Type:         string(f.Config.Role),
+	}
+}
+
+// getAddress returns the routable address of the machine.
+func (f *MeshNodeFactory) getAddress(params *mesh.MeshNodeFactoryParams) string {
+	var hostName string = ""
+
+	if params.Endpoint != "" {
+		hostName = params.Endpoint
+	} else if len(f.Config.Endpoint) != 0 {
+		hostName = f.Config.Endpoint
+	} else {
+		ipFunc := lib.GetPublicIP
+
+		if f.Config.IPDiscovery == conf.DNS_IP_DISCOVERY {
+			ipFunc = lib.GetOutboundIP
+		}
+
+		ip, err := ipFunc()
+
+		if err != nil {
+			return ""
+		}
+
+		hostName = ip.String()
+	}
+
+	return hostName
+}

pkg/crdt/g_map.go

@@ -0,0 +1,172 @@
+// crdt is a golang implementation of a crdt
+package crdt
+
+import (
+	"cmp"
+	"sync"
+)
+
+type Bucket[D any] struct {
+	Vector     uint64
+	Contents   D
+	Gravestone bool
+}
+
+// GMap is a set that can only grow in size
+type GMap[K cmp.Ordered, D any] struct {
+	lock     sync.RWMutex
+	contents map[K]Bucket[D]
+	clock    *VectorClock[K]
+}
+
+func (g *GMap[K, D]) Put(key K, value D) {
+	g.lock.Lock()
+
+	clock := g.clock.IncrementClock()
+
+	g.contents[key] = Bucket[D]{
+		Vector:   clock,
+		Contents: value,
+	}
+
+	g.lock.Unlock()
+}
+
+func (g *GMap[K, D]) Contains(key K) bool {
+	g.lock.RLock()
+
+	_, ok := g.contents[key]
+
+	g.lock.RUnlock()
+
+	return ok
+}
+
+func (g *GMap[K, D]) put(key K, b Bucket[D]) {
+	g.lock.Lock()
+
+	if g.contents[key].Vector < b.Vector {
+		g.contents[key] = b
+	}
+
+	g.lock.Unlock()
+}
+
+func (g *GMap[K, D]) get(key K) Bucket[D] {
+	g.lock.RLock()
+	bucket := g.contents[key]
+	g.lock.RUnlock()
+
+	return bucket
+}
+
+func (g *GMap[K, D]) Get(key K) D {
+	return g.get(key).Contents
+}
+
+func (g *GMap[K, D]) Mark(key K) {
+	g.lock.Lock()
+	bucket := g.contents[key]
+	bucket.Gravestone = true
+	g.contents[key] = bucket
+	g.lock.Unlock()
+}
+
+// IsMarked: returns true if the node is marked
+func (g *GMap[K, D]) IsMarked(key K) bool {
+	marked := false
+
+	g.lock.RLock()
+
+	bucket, ok := g.contents[key]
+
+	if ok {
+		marked = bucket.Gravestone
+	}
+
+	g.lock.RUnlock()
+
+	return marked
+}
+
+func (g *GMap[K, D]) Keys() []K {
+	g.lock.RLock()
+
+	contents := make([]K, len(g.contents))
+	index := 0
+
+	for key := range g.contents {
+		contents[index] = key
+		index++
+	}
+
+	g.lock.RUnlock()
+	return contents
+}
+
+func (g *GMap[K, D]) Save() map[K]Bucket[D] {
+	buckets := make(map[K]Bucket[D])
+	g.lock.RLock()
+
+	for key, value := range g.contents {
+		buckets[key] = value
+	}
+
+	g.lock.RUnlock()
+	return buckets
+}
+
+func (g *GMap[K, D]) SaveWithKeys(keys []K) map[K]Bucket[D] {
+	buckets := make(map[K]Bucket[D])
+	g.lock.RLock()
+
+	for _, key := range keys {
+		buckets[key] = g.contents[key]
+	}
+
+	g.lock.RUnlock()
+	return buckets
+}
+
+func (g *GMap[K, D]) GetClock() map[K]uint64 {
+	clock := make(map[K]uint64)
+	g.lock.RLock()
+
+	for key, bucket := range g.contents {
+		clock[key] = bucket.Vector
+	}
+
+	g.lock.RUnlock()
+	return clock
+}
+
+func (g *GMap[K, D]) GetHash() uint64 {
+	hash := uint64(0)
+
+	g.lock.RLock()
+
+	for _, value := range g.contents {
+		hash += value.Vector
+	}
+
+	g.lock.RUnlock()
+	return hash
+}
+
+func (g *GMap[K, D]) Prune() {
+	stale := g.clock.getStale()
+	g.lock.Lock()
+
+	for _, outlier := range stale {
+		delete(g.contents, outlier)
+	}
+
+	g.lock.Unlock()
+}
+
+func NewGMap[K cmp.Ordered, D any](clock *VectorClock[K]) *GMap[K, D] {
+	return &GMap[K, D]{
+		contents: make(map[K]Bucket[D]),
+		clock:    clock,
+	}
+}

pkg/crdt/two_phase_map.go

@@ -0,0 +1,202 @@
+package crdt
+
+import (
+	"cmp"
+
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+)
+
+type TwoPhaseMap[K cmp.Ordered, D any] struct {
+	addMap    *GMap[K, D]
+	removeMap *GMap[K, bool]
+	Clock     *VectorClock[K]
+	processId K
+}
+
+type TwoPhaseMapSnapshot[K cmp.Ordered, D any] struct {
+	Add    map[K]Bucket[D]
+	Remove map[K]Bucket[bool]
+}
+
+// Contains checks whether the value exists in the map
+func (m *TwoPhaseMap[K, D]) Contains(key K) bool {
+	if !m.addMap.Contains(key) {
+		return false
+	}
+
+	addValue := m.addMap.get(key)
+
+	if !m.removeMap.Contains(key) {
+		return true
+	}
+
+	removeValue := m.removeMap.get(key)
+
+	return addValue.Vector >= removeValue.Vector
+}
+
+func (m *TwoPhaseMap[K, D]) Get(key K) D {
+	var result D
+
+	if !m.Contains(key) {
+		return result
+	}
+
+	return m.addMap.Get(key)
+}
+
+// Put places the key K in the map
+func (m *TwoPhaseMap[K, D]) Put(key K, data D) {
+	msgSequence := m.Clock.IncrementClock()
+	m.Clock.Put(key, msgSequence)
+	m.addMap.Put(key, data)
+}
+
+func (m *TwoPhaseMap[K, D]) Mark(key K) {
+	m.addMap.Mark(key)
+}
+
+// Remove removes the value from the map
+func (m *TwoPhaseMap[K, D]) Remove(key K) {
+	m.removeMap.Put(key, true)
+}
+
+func (m *TwoPhaseMap[K, D]) Keys() []K {
+	keys := make([]K, 0)
+
+	addKeys := m.addMap.Keys()
+
+	for _, key := range addKeys {
+		if !m.Contains(key) {
+			continue
+		}
+
+		keys = append(keys, key)
+	}
+
+	return keys
+}
+
+func (m *TwoPhaseMap[K, D]) AsMap() map[K]D {
+	theMap := make(map[K]D)
+
+	keys := m.Keys()
+
+	for _, key := range keys {
+		theMap[key] = m.Get(key)
+	}
+
+	return theMap
+}
+
+func (m *TwoPhaseMap[K, D]) Snapshot() *TwoPhaseMapSnapshot[K, D] {
+	return &TwoPhaseMapSnapshot[K, D]{
+		Add:    m.addMap.Save(),
+		Remove: m.removeMap.Save(),
+	}
+}
+
+func (m *TwoPhaseMap[K, D]) SnapShotFromState(state *TwoPhaseMapState[K]) *TwoPhaseMapSnapshot[K, D] {
+	addKeys := lib.MapKeys(state.AddContents)
+	removeKeys := lib.MapKeys(state.RemoveContents)
+
+	return &TwoPhaseMapSnapshot[K, D]{
+		Add:    m.addMap.SaveWithKeys(addKeys),
+		Remove: m.removeMap.SaveWithKeys(removeKeys),
+	}
+}
+
+type TwoPhaseMapState[K cmp.Ordered] struct {
+	Vectors        map[K]uint64
+	AddContents    map[K]uint64
+	RemoveContents map[K]uint64
+}
+
+func (m *TwoPhaseMap[K, D]) IsMarked(key K) bool {
+	return m.addMap.IsMarked(key)
+}
+
+// GetHash: Get the hash of the current state of the map
+// Sums the current values of the vectors. Provides good approximation
+// of increasing numbers
+func (m *TwoPhaseMap[K, D]) GetHash() uint64 {
+	return m.addMap.GetHash() + m.removeMap.GetHash()
+}
+
+// GetState: get the current vector clock of the add and remove
+// map
+func (m *TwoPhaseMap[K, D]) GenerateMessage() *TwoPhaseMapState[K] {
+	addContents := m.addMap.GetClock()
+	removeContents := m.removeMap.GetClock()
+
+	return &TwoPhaseMapState[K]{
+		Vectors:        m.Clock.GetClock(),
+		AddContents:    addContents,
+		RemoveContents: removeContents,
+	}
+}
+
+func (m *TwoPhaseMap[K, D]) UpdateVector(state *TwoPhaseMapState[K]) {
+	for key, value := range state.Vectors {
+		m.Clock.Put(key, value)
+	}
+}
+
+func (m *TwoPhaseMapState[K]) Difference(state *TwoPhaseMapState[K]) *TwoPhaseMapState[K] {
+	mapState := &TwoPhaseMapState[K]{
+		AddContents:    make(map[K]uint64),
+		RemoveContents: make(map[K]uint64),
+	}
+
+	for key, value := range state.AddContents {
+		otherValue, ok := m.AddContents[key]
+
+		if !ok || otherValue < value {
+			mapState.AddContents[key] = value
+		}
+	}
+
+	for key, value := range state.RemoveContents {
+		otherValue, ok := m.RemoveContents[key]
+
+		if !ok || otherValue < value {
+			mapState.RemoveContents[key] = value
+		}
+	}
+
+	return mapState
+}
+
+func (m *TwoPhaseMap[K, D]) Merge(snapshot TwoPhaseMapSnapshot[K, D]) {
+	for key, value := range snapshot.Add {
+		// Gravestone is local only to that node.
+		// Discover ourselves if the node is alive
+		m.addMap.put(key, value)
+		m.Clock.Put(key, value.Vector)
+	}
+
+	for key, value := range snapshot.Remove {
+		m.removeMap.put(key, value)
+		m.Clock.Put(key, value.Vector)
+	}
+}
+
+func (m *TwoPhaseMap[K, D]) Prune() {
+	m.addMap.Prune()
+	m.removeMap.Prune()
+	m.Clock.Prune()
+}
+
+// NewTwoPhaseMap: create a new two phase map. Consists of two maps
+// a grow map and a remove map. If both timestamps equal then favour keeping
+// it in the map
+func NewTwoPhaseMap[K cmp.Ordered, D any](processId K, hashKey func(K) uint64, staleTime uint64) *TwoPhaseMap[K, D] {
+	m := TwoPhaseMap[K, D]{
+		processId: processId,
+		Clock:     NewVectorClock(processId, hashKey, staleTime),
+	}
+
+	m.addMap = NewGMap[K, D](m.Clock)
+	m.removeMap = NewGMap[K, bool](m.Clock)
+	return &m
+}

pkg/crdt/two_phase_map_syncer.go

@@ -0,0 +1,186 @@
+package crdt
+
+import (
+	"bytes"
+	"encoding/gob"
+
+	logging "github.com/tim-beatham/wgmesh/pkg/log"
+)
+
+type SyncState int
+
+const (
+	HASH SyncState = iota
+	PREPARE
+	PRESENT
+	EXCHANGE
+	MERGE
+	FINISHED
+)
+
+// TwoPhaseSyncer is a type to sync a TwoPhase data store
+type TwoPhaseSyncer struct {
+	manager            *TwoPhaseStoreMeshManager
+	generateMessageFSM SyncFSM
+	state              SyncState
+	mapState           *TwoPhaseMapState[string]
+	peerMsg            []byte
+}
+
+type TwoPhaseHash struct {
+	Hash uint64
+}
+
+type SyncFSM map[SyncState]func(*TwoPhaseSyncer) ([]byte, bool)
+
+func hash(syncer *TwoPhaseSyncer) ([]byte, bool) {
+	hash := TwoPhaseHash{
+		Hash: syncer.manager.store.Clock.GetHash(),
+	}
+
+	var buffer bytes.Buffer
+	enc := gob.NewEncoder(&buffer)
+
+	err := enc.Encode(hash)
+
+	if err != nil {
+		logging.Log.WriteInfof(err.Error())
+	}
+
+	syncer.IncrementState()
+	return buffer.Bytes(), true
+}
+
+func prepare(syncer *TwoPhaseSyncer) ([]byte, bool) {
+	var recvBuffer = bytes.NewBuffer(syncer.peerMsg)
+	dec := gob.NewDecoder(recvBuffer)
+
+	var hash TwoPhaseHash
+	err := dec.Decode(&hash)
+
+	if err != nil {
+		logging.Log.WriteInfof(err.Error())
+	}
+
+	// If vector clocks are equal then no need to merge state
+	// Helps to reduce bandwidth by detecting early
+	if hash.Hash == syncer.manager.store.Clock.GetHash() {
+		return nil, false
+	}
+
+	var buffer bytes.Buffer
+	enc := gob.NewEncoder(&buffer)
+
+	err = enc.Encode(*syncer.mapState)
+
+	if err != nil {
+		logging.Log.WriteInfof(err.Error())
+	}
+
+	syncer.IncrementState()
+	return buffer.Bytes(), true
+}
+
+func present(syncer *TwoPhaseSyncer) ([]byte, bool) {
+	if syncer.peerMsg == nil {
+		panic("peer msg is nil")
+	}
+
+	var recvBuffer = bytes.NewBuffer(syncer.peerMsg)
+	dec := gob.NewDecoder(recvBuffer)
+
+	var mapState TwoPhaseMapState[string]
+	err := dec.Decode(&mapState)
+
+	if err != nil {
+		logging.Log.WriteInfof(err.Error())
+	}
+
+	difference := syncer.mapState.Difference(&mapState)
+
+	var sendBuffer bytes.Buffer
+	enc := gob.NewEncoder(&sendBuffer)
+	enc.Encode(*difference)
+
+	syncer.IncrementState()
+	return sendBuffer.Bytes(), true
+}
+
+func exchange(syncer *TwoPhaseSyncer) ([]byte, bool) {
+	if syncer.peerMsg == nil {
+		panic("peer msg is nil")
+	}
+
+	var recvBuffer = bytes.NewBuffer(syncer.peerMsg)
+	dec := gob.NewDecoder(recvBuffer)
+
+	var mapState TwoPhaseMapState[string]
+	dec.Decode(&mapState)
+
+	snapshot := syncer.manager.store.SnapShotFromState(&mapState)
+
+	var sendBuffer bytes.Buffer
+	enc := gob.NewEncoder(&sendBuffer)
+	enc.Encode(*snapshot)
+
+	syncer.IncrementState()
+	return sendBuffer.Bytes(), true
+}
+
+func merge(syncer *TwoPhaseSyncer) ([]byte, bool) {
+	if syncer.peerMsg == nil {
+		panic("peer msg is nil")
+	}
+
+	var recvBuffer = bytes.NewBuffer(syncer.peerMsg)
+	dec := gob.NewDecoder(recvBuffer)
+
+	var snapshot TwoPhaseMapSnapshot[string, MeshNode]
+	dec.Decode(&snapshot)
+
+	syncer.manager.store.Merge(snapshot)
+	return nil, false
+}
+
+func (t *TwoPhaseSyncer) IncrementState() {
+	t.state = min(t.state+1, FINISHED)
+}
+
+func (t *TwoPhaseSyncer) GenerateMessage() ([]byte, bool) {
+	fsmFunc, ok := t.generateMessageFSM[t.state]
+
+	if !ok {
+		panic("state not handled")
+	}
+
+	return fsmFunc(t)
+}
+
+func (t *TwoPhaseSyncer) RecvMessage(msg []byte) error {
+	t.peerMsg = msg
+	return nil
+}
+
+func (t *TwoPhaseSyncer) Complete() {
+	logging.Log.WriteInfof("SYNC COMPLETED")
+	if t.state == FINISHED || t.state == MERGE {
+		t.manager.store.Clock.IncrementClock()
+	}
+}
+
+func NewTwoPhaseSyncer(manager *TwoPhaseStoreMeshManager) *TwoPhaseSyncer {
+	var generateMessageFsm SyncFSM = SyncFSM{
+		HASH:     hash,
+		PREPARE:  prepare,
+		PRESENT:  present,
+		EXCHANGE: exchange,
+		MERGE:    merge,
+	}
+
+	return &TwoPhaseSyncer{
+		manager:            manager,
+		state:              HASH,
+		mapState:           manager.store.GenerateMessage(),
+		generateMessageFSM: generateMessageFsm,
+	}
+}

pkg/crdt/vector_clock.go

@@ -0,0 +1,147 @@
+package crdt
+
+import (
+	"cmp"
+	"slices"
+	"sync"
+	"time"
+
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+)
+
+type VectorBucket struct {
+	// clock current value of the node's clock
+	clock uint64
+	// lastUpdate we've seen
+	lastUpdate uint64
+}
+
+// Vector clock defines an abstract data type
+// for a vector clock implementation
+type VectorClock[K cmp.Ordered] struct {
+	vectors   map[K]*VectorBucket
+	lock      sync.RWMutex
+	processID K
+	staleTime uint64
+	hashFunc  func(K) uint64
+}
+
+// IncrementClock: increments the node's value in the vector clock
+func (m *VectorClock[K]) IncrementClock() uint64 {
+	maxClock := uint64(0)
+	m.lock.Lock()
+
+	for _, value := range m.vectors {
+		maxClock = max(maxClock, value.clock)
+	}
+
+	newBucket := VectorBucket{
+		clock:      maxClock + 1,
+		lastUpdate: uint64(time.Now().Unix()),
+	}
+
+	m.vectors[m.processID] = &newBucket
+
+	m.lock.Unlock()
+	return maxClock
+}
+
+// GetHash: gets the hash of the vector clock used to determine if there
+// are any changes
+func (m *VectorClock[K]) GetHash() uint64 {
+	m.lock.RLock()
+
+	hash := uint64(0)
+
+	sortedKeys := lib.MapKeys(m.vectors)
+	slices.Sort(sortedKeys)
+
+	for key, bucket := range m.vectors {
+		hash += m.hashFunc(key)
+		hash += bucket.clock
+	}
+
+	m.lock.RUnlock()
+	return hash
+}
+
+// getStale: get all entries that are stale within the mesh
+func (m *VectorClock[K]) getStale() []K {
+	m.lock.RLock()
+	maxTimeStamp := lib.Reduce(0, lib.MapValues(m.vectors), func(i uint64, vb *VectorBucket) uint64 {
+		return max(i, vb.lastUpdate)
+	})
+
+	toRemove := make([]K, 0)
+
+	for key, bucket := range m.vectors {
+		if maxTimeStamp-bucket.lastUpdate > m.staleTime {
+			toRemove = append(toRemove, key)
+		}
+	}
+
+	m.lock.RUnlock()
+	return toRemove
+}
+
+func (m *VectorClock[K]) Prune() {
+	stale := m.getStale()
+
+	m.lock.Lock()
+
+	for _, key := range stale {
+		delete(m.vectors, key)
+	}
+
+	m.lock.Unlock()
+}
+
+func (m *VectorClock[K]) GetTimestamp(processId K) uint64 {
+	return m.vectors[processId].lastUpdate
+}
+
+func (m *VectorClock[K]) Put(key K, value uint64) {
+	clockValue := uint64(0)
+
+	m.lock.Lock()
+	bucket, ok := m.vectors[key]
+
+	if ok {
+		clockValue = bucket.clock
+	}
+
+	if value > clockValue {
+		newBucket := VectorBucket{
+			clock:      value,
+			lastUpdate: uint64(time.Now().Unix()),
+		}
+		m.vectors[key] = &newBucket
+	}
+
+	m.lock.Unlock()
+}
+
+func (m *VectorClock[K]) GetClock() map[K]uint64 {
+	clock := make(map[K]uint64)
+
+	m.lock.RLock()
+
+	keys := lib.MapKeys(m.vectors)
+	slices.Sort(keys)
+
+	for key, value := range clock {
+		clock[key] = value
+	}
+
+	m.lock.RUnlock()
+	return clock
+}
+
+func NewVectorClock[K cmp.Ordered](processID K, hashFunc func(K) uint64, staleTime uint64) *VectorClock[K] {
+	return &VectorClock[K]{
+		vectors:   make(map[K]*VectorBucket),
+		processID: processID,
+		staleTime: staleTime,
+		hashFunc:  hashFunc,
+	}
+}

pkg/ctrlserver/ctrlserver.go

@@ -1,9 +1,9 @@
 package ctrlserver
 
 import (
-	crdt "github.com/tim-beatham/wgmesh/pkg/automerge"
 	"github.com/tim-beatham/wgmesh/pkg/conf"
 	"github.com/tim-beatham/wgmesh/pkg/conn"
+	"github.com/tim-beatham/wgmesh/pkg/crdt"
 	"github.com/tim-beatham/wgmesh/pkg/ip"
 	"github.com/tim-beatham/wgmesh/pkg/lib"
 	logging "github.com/tim-beatham/wgmesh/pkg/log"
@@ -18,42 +18,48 @@ import (
 type NewCtrlServerParams struct {
 	Conf         *conf.WgMeshConfiguration
 	Client       *wgctrl.Client
-	AuthProvider rpc.AuthenticationServer
 	CtrlProvider rpc.MeshCtrlServerServer
 	SyncProvider rpc.SyncServiceServer
 	Querier      query.Querier
+	OnDelete     func(mesh.MeshProvider)
 }
 
 // Create a new instance of the MeshCtrlServer or error if the
 // operation failed
 func NewCtrlServer(params *NewCtrlServerParams) (*MeshCtrlServer, error) {
 	ctrlServer := new(MeshCtrlServer)
-	meshFactory := crdt.CrdtProviderFactory{}
-	nodeFactory := crdt.MeshNodeFactory{
+	meshFactory := &crdt.TwoPhaseMapFactory{}
+	nodeFactory := &crdt.MeshNodeFactory{
 		Config: *params.Conf,
 	}
-	idGenerator := &lib.UUIDGenerator{}
+	idGenerator := &lib.IDNameGenerator{}
 	ipAllocator := &ip.ULABuilder{}
 	interfaceManipulator := wg.NewWgInterfaceManipulator(params.Client)
 
+	configApplyer := mesh.NewWgMeshConfigApplyer(params.Conf)
+
 	meshManagerParams := &mesh.NewMeshManagerParams{
 		Conf:                 *params.Conf,
 		Client:               params.Client,
-		MeshProvider:         &meshFactory,
-		NodeFactory:          &nodeFactory,
+		MeshProvider:         meshFactory,
+		NodeFactory:          nodeFactory,
 		IdGenerator:          idGenerator,
 		IPAllocator:          ipAllocator,
 		InterfaceManipulator: interfaceManipulator,
+		ConfigApplyer:        configApplyer,
+		OnDelete:             params.OnDelete,
 	}
 
 	ctrlServer.MeshManager = mesh.NewMeshManager(meshManagerParams)
+	configApplyer.SetMeshManager(ctrlServer.MeshManager)
 
 	ctrlServer.Conf = params.Conf
-	connManagerParams := conn.NewConnectionManageParams{
+	connManagerParams := conn.NewConnectionManagerParams{
 		CertificatePath:      params.Conf.CertificatePath,
 		PrivateKey:           params.Conf.PrivateKeyPath,
 		SkipCertVerification: params.Conf.SkipCertVerification,
 		CaCert:               params.Conf.CaCertificatePath,
+		ConnFactory:          conn.NewWgCtrlConnection,
 	}
 
 	connMgr, err := conn.NewConnectionManager(&connManagerParams)
@@ -65,7 +71,6 @@ func NewCtrlServer(params *NewCtrlServerParams) (*MeshCtrlServer, error) {
 	ctrlServer.ConnectionManager = connMgr
 	connServerParams := conn.NewConnectionServerParams{
 		Conf:         params.Conf,
-		AuthProvider: params.AuthProvider,
 		CtrlProvider: params.CtrlProvider,
 		SyncProvider: params.SyncProvider,
 	}
@@ -82,12 +87,36 @@ func NewCtrlServer(params *NewCtrlServerParams) (*MeshCtrlServer, error) {
 	return ctrlServer, nil
 }
 
+func (s *MeshCtrlServer) GetConfiguration() *conf.WgMeshConfiguration {
+	return s.Conf
+}
+
+func (s *MeshCtrlServer) GetClient() *wgctrl.Client {
+	return s.Client
+}
+
+func (s *MeshCtrlServer) GetQuerier() query.Querier {
+	return s.Querier
+}
+
+func (s *MeshCtrlServer) GetMeshManager() mesh.MeshManager {
+	return s.MeshManager
+}
+
+func (s *MeshCtrlServer) GetConnectionManager() conn.ConnectionManager {
+	return s.ConnectionManager
+}
+
 // Close closes the ctrl server tearing down any connections that exist
 func (s *MeshCtrlServer) Close() error {
 	if err := s.ConnectionManager.Close(); err != nil {
 		logging.Log.WriteErrorf(err.Error())
 	}
 
+	if err := s.MeshManager.Close(); err != nil {
+		logging.Log.WriteErrorf(err.Error())
+	}
+
 	if err := s.ConnectionServer.Close(); err != nil {
 		logging.Log.WriteErrorf(err.Error())
 	}

pkg/ctrlserver/ctrltypes.go

@@ -9,6 +9,11 @@ import (
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 )
 
+type MeshRoute struct {
+	Destination string
+	Path        []string
+}
+
 // Represents a WireGuard MeshNode
 type MeshNode struct {
 	HostEndpoint string
@@ -16,7 +21,10 @@ type MeshNode struct {
 	PublicKey    string
 	WgHost       string
 	Timestamp    int64
-	Routes       []string
+	Routes       []MeshRoute
+	Description  string
+	Alias        string
+	Services     map[string]string
 }
 
 // Represents a WireGuard Mesh
@@ -25,10 +33,19 @@ type Mesh struct {
 	Nodes     map[string]MeshNode
 }
 
+type CtrlServer interface {
+	GetConfiguration() *conf.WgMeshConfiguration
+	GetClient() *wgctrl.Client
+	GetQuerier() query.Querier
+	GetMeshManager() mesh.MeshManager
+	Close() error
+	GetConnectionManager() conn.ConnectionManager
+}
+
 // Represents a ctrlserver to be used in WireGuard
 type MeshCtrlServer struct {
 	Client            *wgctrl.Client
-	MeshManager       *mesh.MeshManager
+	MeshManager       mesh.MeshManager
 	ConnectionManager conn.ConnectionManager
 	ConnectionServer  *conn.ConnectionServer
 	Conf              *conf.WgMeshConfiguration

pkg/ctrlserver/stub.go

@@ -0,0 +1,51 @@
+package ctrlserver
+
+import (
+	"github.com/tim-beatham/wgmesh/pkg/conf"
+	"github.com/tim-beatham/wgmesh/pkg/conn"
+	"github.com/tim-beatham/wgmesh/pkg/mesh"
+	"github.com/tim-beatham/wgmesh/pkg/query"
+	"golang.zx2c4.com/wireguard/wgctrl"
+)
+
+type CtrlServerStub struct {
+	manager           mesh.MeshManager
+	querier           query.Querier
+	connectionManager conn.ConnectionManager
+}
+
+func NewCtrlServerStub() *CtrlServerStub {
+	var manager mesh.MeshManager = mesh.NewMeshManagerStub()
+	return &CtrlServerStub{
+		manager:           manager,
+		querier:           query.NewJmesQuerier(manager),
+		connectionManager: &conn.ConnectionManagerStub{},
+	}
+}
+
+func (c *CtrlServerStub) GetConfiguration() *conf.WgMeshConfiguration {
+	return &conf.WgMeshConfiguration{
+		GrpcPort: "8080",
+		Endpoint: "abc.com",
+	}
+}
+
+func (c *CtrlServerStub) GetClient() *wgctrl.Client {
+	return &wgctrl.Client{}
+}
+
+func (c *CtrlServerStub) GetQuerier() query.Querier {
+	return c.querier
+}
+
+func (c *CtrlServerStub) GetMeshManager() mesh.MeshManager {
+	return c.manager
+}
+
+func (c *CtrlServerStub) Close() error {
+	return nil
+}
+
+func (c *CtrlServerStub) GetConnectionManager() conn.ConnectionManager {
+	return c.connectionManager
+}

pkg/dns/dns.go

@@ -0,0 +1,114 @@
+package smegdns
+
+import (
+	"encoding/json"
+	"fmt"
+	"net"
+	"net/rpc"
+
+	"github.com/miekg/dns"
+	"github.com/tim-beatham/wgmesh/pkg/ipc"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+	logging "github.com/tim-beatham/wgmesh/pkg/log"
+	"github.com/tim-beatham/wgmesh/pkg/query"
+)
+
+const SockAddr = "/tmp/wgmesh_ipc.sock"
+
+const MeshRegularExpression = `(?P<meshId>.+)\.(?P<alias>.+)\.smeg\.`
+
+type DNSHandler struct {
+	client *rpc.Client
+	server *dns.Server
+}
+
+// queryMesh: queries the mesh network for the given meshId and node
+// with alias
+func (d *DNSHandler) queryMesh(meshId, alias string) net.IP {
+	var reply string
+
+	err := d.client.Call("IpcHandler.Query", &ipc.QueryMesh{
+		MeshId: meshId,
+		Query:  fmt.Sprintf("[?alias == '%s'] | [0]", alias),
+	}, &reply)
+
+	if err != nil {
+		return nil
+	}
+
+	var node *query.QueryNode
+
+	err = json.Unmarshal([]byte(reply), &node)
+
+	if err != nil || node == nil {
+		return nil
+	}
+
+	ip, _, _ := net.ParseCIDR(node.WgHost)
+	return ip
+}
+
+func (d *DNSHandler) handleQuery(m *dns.Msg) {
+	for _, q := range m.Question {
+		switch q.Qtype {
+		case dns.TypeAAAA:
+			logging.Log.WriteInfof("Query for %s", q.Name)
+
+			groups := lib.MatchCaptureGroup(MeshRegularExpression, q.Name)
+
+			if len(groups) == 0 {
+				continue
+			}
+
+			ip := d.queryMesh(groups["meshId"], groups["alias"])
+
+			rr, err := dns.NewRR(fmt.Sprintf("%s AAAA %s", q.Name, ip))
+
+			if err != nil {
+				logging.Log.WriteErrorf(err.Error())
+			}
+
+			if err == nil {
+				m.Answer = append(m.Answer, rr)
+			}
+		}
+	}
+}
+
+func (h *DNSHandler) handleDnsRequest(w dns.ResponseWriter, r *dns.Msg) {
+	msg := new(dns.Msg)
+	msg.SetReply(r)
+	msg.Authoritative = true
+
+	switch r.Opcode {
+	case dns.OpcodeQuery:
+		h.handleQuery(msg)
+	}
+
+	w.WriteMsg(msg)
+}
+
+func (h *DNSHandler) Listen() error {
+	return h.server.ListenAndServe()
+}
+
+func (h *DNSHandler) Close() error {
+	return h.server.Shutdown()
+}
+
+func NewDns(udpPort int) (*DNSHandler, error) {
+	client, err := rpc.DialHTTP("unix", SockAddr)
+
+	if err != nil {
+		return nil, err
+	}
+
+	dnsHander := DNSHandler{
+		client: client,
+	}
+
+	dns.HandleFunc("smeg.", dnsHander.handleDnsRequest)
+
+	dnsHander.server = &dns.Server{Addr: fmt.Sprintf(":%d", udpPort), Net: "udp"}
+	return &dnsHander, nil
+}

pkg/grpc/ctrlserver/ctrlserver.proto

@@ -4,13 +4,13 @@ package rpctypes;
 option go_package = "pkg/rpc";
 
 service MeshCtrlServer {
-    rpc JoinMesh(JoinMeshRequest) returns (JoinMeshReply) {}
+    rpc GetMesh(GetMeshRequest) returns (GetMeshReply) {} 
 }
 
-message JoinMeshRequest {
-    string meshId = 2;
+message GetMeshRequest {
+    string meshId = 1;
 }
 
-message JoinMeshReply {
-    bool success = 1;
+message GetMeshReply {
+    bytes mesh = 1;
 }

pkg/hosts/hosts.go

@@ -0,0 +1,132 @@
+// hosts: utility for modifying the /etc/hosts file
+package hosts
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"io"
+	"net"
+	"os"
+	"strings"
+)
+
+// HOSTS_FILE is the hosts file location
+const HOSTS_FILE = "/etc/hosts"
+
+const DOMAIN_HEADER = "#WG AUTO GENERATED HOSTS"
+const DOMAIN_TRAILER = "#WG AUTO GENERATED HOSTS END"
+
+type HostsEntry struct {
+	Alias string
+	Ip    net.IP
+}
+
+// Generic interface to manipulate /etc/hosts file
+type HostsManipulator interface {
+	// AddrAddr associates an aliasd with a given IP address
+	AddAddr(hosts ...HostsEntry)
+	// Remove deletes the entry from /etc/hosts
+	Remove(hosts ...HostsEntry)
+	// Writes the changes to /etc/hosts file
+	Write() error
+}
+
+type HostsManipulatorImpl struct {
+	hosts map[string]HostsEntry
+}
+
+// AddAddr implements HostsManipulator.
+func (m *HostsManipulatorImpl) AddAddr(hosts ...HostsEntry) {
+	changed := false
+
+	for _, host := range hosts {
+		prev, ok := m.hosts[host.Ip.String()]
+
+		if !ok || prev.Alias != host.Alias {
+			changed = true
+		}
+
+		m.hosts[host.Ip.String()] = host
+	}
+
+	if changed {
+		m.Write()
+	}
+}
+
+// Remove implements HostsManipulator.
+func (m *HostsManipulatorImpl) Remove(hosts ...HostsEntry) {
+	lenBefore := len(m.hosts)
+
+	for _, host := range hosts {
+		delete(m.hosts, host.Alias)
+	}
+
+	if lenBefore != len(m.hosts) {
+		m.Write()
+	}
+}
+
+func (m *HostsManipulatorImpl) removeHosts() string {
+	hostsFile, err := os.ReadFile(HOSTS_FILE)
+
+	if err != nil {
+		return ""
+	}
+
+	var contents strings.Builder
+
+	scanner := bufio.NewScanner(bytes.NewReader(hostsFile))
+
+	hostsSection := false
+
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			return ""
+		}
+
+		if !hostsSection && strings.Contains(line, DOMAIN_HEADER) {
+			hostsSection = true
+		}
+
+		if !hostsSection {
+			contents.WriteString(line + "\n")
+		}
+
+		if hostsSection && strings.Contains(line, DOMAIN_TRAILER) {
+			hostsSection = false
+		}
+	}
+
+	if scanner.Err() != nil && scanner.Err() != io.EOF {
+		return ""
+	}
+
+	return contents.String()
+}
+
+// Write implements HostsManipulator
+func (m *HostsManipulatorImpl) Write() error {
+	contents := m.removeHosts()
+
+	var nextHosts strings.Builder
+	nextHosts.WriteString(contents)
+
+	nextHosts.WriteString(DOMAIN_HEADER + "\n")
+
+	for _, host := range m.hosts {
+		nextHosts.WriteString(fmt.Sprintf("%s\t%s\n", host.Ip.String(), host.Alias))
+	}
+
+	nextHosts.WriteString(DOMAIN_TRAILER + "\n")
+	return os.WriteFile(HOSTS_FILE, []byte(nextHosts.String()), 0644)
+}
+
+func NewHostsManipulator() HostsManipulator {
+	return &HostsManipulatorImpl{hosts: make(map[string]HostsEntry)}
+}

pkg/ipc/ipc.go

@@ -11,8 +11,6 @@ import (
 )
 
 type NewMeshArgs struct {
-	// IfName is the interface that the mesh instance will run on
-	IfName string
 	// WgPort is the WireGuard port to expose
 	WgPort int
 	// Endpoint is the routable alias of the machine. Can be an IP
@@ -25,13 +23,19 @@ type JoinMeshArgs struct {
 	MeshId string
 	// IpAddress is a routable IP in another mesh
 	IpAdress string
-	// IfName is the interface name of the mesh
-	IfName string
 	// Port is the WireGuard port to expose
 	Port int
 	// Endpoint is the routable address of this machine. If not provided
 	// defaults to the default address
 	Endpoint string
+	// Client specifies whether we should join as a client of the peer
+	// we are connecting to
+	Client bool
+}
+
+type PutServiceArgs struct {
+	Service string
+	Value   string
 }
 
 type GetMeshReply struct {
@@ -47,23 +51,31 @@ type QueryMesh struct {
 	Query  string
 }
 
+type GetNodeArgs struct {
+	NodeId string
+	MeshId string
+}
+
 type MeshIpc interface {
 	CreateMesh(args *NewMeshArgs, reply *string) error
 	ListMeshes(name string, reply *ListMeshReply) error
 	JoinMesh(args JoinMeshArgs, reply *string) error
 	LeaveMesh(meshId string, reply *string) error
 	GetMesh(meshId string, reply *GetMeshReply) error
-	EnableInterface(meshId string, reply *string) error
 	GetDOT(meshId string, reply *string) error
 	Query(query QueryMesh, reply *string) error
 	PutDescription(description string, reply *string) error
+	PutAlias(alias string, reply *string) error
+	PutService(args PutServiceArgs, reply *string) error
+	GetNode(args GetNodeArgs, reply *string) error
+	DeleteService(service string, reply *string) error
 }
 
 const SockAddr = "/tmp/wgmesh_ipc.sock"
 
 func RunIpcHandler(server MeshIpc) error {
 	if err := os.RemoveAll(SockAddr); err != nil {
-		return errors.New("Could not find to address")
+		return errors.New("could not find to address")
 	}
 
 	rpc.Register(server)

pkg/lib/conv.go

@@ -1,11 +1,13 @@
 package lib
 
+import "cmp"
+
 // MapToSlice converts a map to a slice in go
-func MapValues[K comparable, V any](m map[K]V) []V {
+func MapValues[K cmp.Ordered, V any](m map[K]V) []V {
 	return MapValuesWithExclude(m, map[K]struct{}{})
 }
 
-func MapValuesWithExclude[K comparable, V any](m map[K]V, exclude map[K]struct{}) []V {
+func MapValuesWithExclude[K cmp.Ordered, V any](m map[K]V, exclude map[K]struct{}) []V {
 	values := make([]V, len(m)-len(exclude))
 
 	i := 0
@@ -26,11 +28,11 @@ func MapValuesWithExclude[K comparable, V any](m map[K]V, exclude map[K]struct{}
 	return values
 }
 
-func MapKeys[K comparable, V any](m map[K]V) []K {
+func MapKeys[K cmp.Ordered, V any](m map[K]V) []K {
 	values := make([]K, len(m))
 
 	i := 0
-	for k, _ := range m {
+	for k := range m {
 		values[i] = k
 		i++
 	}
@@ -58,7 +60,7 @@ type filterFunc[V any] func(V) bool
 func Filter[V any](list []V, f filterFunc[V]) []V {
 	newList := make([]V, 0)
 
-	for _, elem := range newList {
+	for _, elem := range list {
 		if f(elem) {
 			newList = append(newList, elem)
 		}
@@ -66,3 +68,23 @@ func Filter[V any](list []V, f filterFunc[V]) []V {
 
 	return newList
 }
+
+func Contains[V any](list []V, proposition func(V) bool) bool {
+	for _, elem := range list {
+		if proposition(elem) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func Reduce[A any, V any](start A, values []V, reduce func(A, V) A) A {
+	accum := start
+
+	for _, elem := range values {
+		accum = reduce(accum, elem)
+	}
+
+	return accum
+}

pkg/lib/conv_test.go

@@ -0,0 +1,144 @@
+package lib
+
+import (
+	"slices"
+	"testing"
+)
+
+func stringToInt(input string) int {
+	return len(input)
+}
+
+func intDiv(input int) int {
+	return input / 2
+}
+
+func TestMapValuesMapsValues(t *testing.T) {
+	values := []int{1, 4, 11, 92}
+	var theMap map[string]int = map[string]int{
+		"mynameisjeff": values[0],
+		"tim":          values[1],
+		"bob":          values[2],
+		"derek":        values[3],
+	}
+
+	mapValues := MapValues(theMap)
+
+	for _, elem := range mapValues {
+		if !slices.Contains(values, elem) {
+			t.Fatalf(`%d is not an expected value`, elem)
+		}
+	}
+
+	if len(mapValues) != len(theMap) {
+		t.Fatalf(`Expected length %d got %d`, len(theMap), len(mapValues))
+	}
+}
+
+func TestMapValuesWithExcludeExcludesValues(t *testing.T) {
+	values := []int{1, 9, 22}
+	var theMap map[string]int = map[string]int{
+		"mynameisbob": values[0],
+		"tim":         values[1],
+		"bob":         values[2],
+	}
+
+	exclude := map[string]struct{}{
+		"tim": {},
+	}
+
+	mapValues := MapValuesWithExclude(theMap, exclude)
+
+	if slices.Contains(mapValues, values[1]) {
+		t.Fatalf(`Failed to exclude expected value`)
+	}
+
+	if len(mapValues) != 2 {
+		t.Fatalf(`Incorrect expected length`)
+	}
+
+	for _, value := range theMap {
+		if !slices.Contains(values, value) {
+			t.Fatalf(`Element does not exist in the list of
+				expected values`)
+		}
+	}
+}
+
+func TestMapKeys(t *testing.T) {
+	keys := []string{"1", "2", "3"}
+
+	theMap := map[string]int{
+		keys[0]: 1,
+		keys[1]: 2,
+		keys[2]: 3,
+	}
+
+	mapKeys := MapKeys(theMap)
+
+	for _, elem := range mapKeys {
+		if !slices.Contains(keys, elem) {
+			t.Fatalf(`%s elem is not an expected key`, elem)
+		}
+	}
+
+	if len(mapKeys) != len(theMap) {
+		t.Fatalf(`Missing expected values`)
+	}
+}
+
+func TestMapValues(t *testing.T) {
+	array := []string{"mynameisjeff", "tim", "bob", "derek"}
+
+	intArray := Map(array, stringToInt)
+
+	for index, elem := range intArray {
+		if len(array[index]) != elem {
+			t.Fatalf(`Have %d want %d`, elem, len(array[index]))
+		}
+	}
+}
+
+func TestFilterFilterAll(t *testing.T) {
+	values := []int{1, 2, 3, 4, 5}
+
+	filterFunc := func(n int) bool {
+		return false
+	}
+
+	newValues := Filter(values, filterFunc)
+
+	if len(newValues) != 0 {
+		t.Fatalf(`Expected value was 0`)
+	}
+}
+
+func TestFilterFilterNone(t *testing.T) {
+	values := []int{1, 2, 3, 4, 5}
+
+	filterFunc := func(n int) bool {
+		return true
+	}
+
+	newValues := Filter(values, filterFunc)
+
+	if !slices.Equal(values, newValues) {
+		t.Fatalf(`Expected lists to be the same`)
+	}
+}
+
+func TestFilterFilterSome(t *testing.T) {
+	values := []int{1, 2, 3, 4, 5}
+
+	filterFunc := func(n int) bool {
+		return n < 3
+	}
+
+	expected := []int{1, 2}
+
+	actual := Filter(values, filterFunc)
+
+	if !slices.Equal(expected, actual) {
+		t.Fatalf(`Expected expected and actual to be the same`)
+	}
+}

pkg/lib/hashing.go

@@ -0,0 +1,46 @@
+package lib
+
+import (
+	"hash/fnv"
+	"sort"
+)
+
+type consistentHashRecord[V any] struct {
+	record V
+	value  int
+}
+
+func HashString(value string) int {
+	f := fnv.New32a()
+	f.Write([]byte(value))
+	return int(f.Sum32())
+}
+
+// ConsistentHash implementation. Traverse the values until we find a key
+// less than ours.
+func ConsistentHash[V any, K any](values []V, client K, bucketFunc func(V) int, keyFunc func(K) int) V {
+	if len(values) == 0 {
+		panic("values is empty")
+	}
+
+	vs := Map(values, func(v V) consistentHashRecord[V] {
+		return consistentHashRecord[V]{
+			v,
+			bucketFunc(v),
+		}
+	})
+
+	sort.SliceStable(vs, func(i, j int) bool {
+		return vs[i].value < vs[j].value
+	})
+
+	ourKey := keyFunc(client)
+
+	for _, record := range vs {
+		if ourKey < record.value {
+			return record.record
+		}
+	}
+
+	return vs[0].record
+}

pkg/lib/id.go

@@ -1,6 +1,9 @@
 package lib
 
-import "github.com/google/uuid"
+import (
+	"github.com/anandvarma/namegen"
+	"github.com/google/uuid"
+)
 
 // IdGenerator generates unique ids
 type IdGenerator interface {
@@ -15,3 +18,11 @@ func (g *UUIDGenerator) GetId() (string, error) {
 	id := uuid.New()
 	return id.String(), nil
 }
+
+type IDNameGenerator struct {
+}
+
+func (i *IDNameGenerator) GetId() (string, error) {
+	name_schema := namegen.New()
+	return name_schema.Get(), nil
+}

pkg/lib/ip.go

@@ -1,17 +1,61 @@
 package lib
 
 import (
+	"encoding/json"
+	"io"
 	"log"
 	"net"
+	"net/http"
 )
 
 // GetOutboundIP: gets the oubound IP of this packet
-func GetOutboundIP() net.IP {
+func GetOutboundIP() (net.IP, error) {
 	conn, err := net.Dial("udp", "8.8.8.8:80")
 	if err != nil {
 		log.Fatal(err)
 	}
 	defer conn.Close()
 	localAddr := conn.LocalAddr().(*net.UDPAddr)
-	return localAddr.IP
+	return localAddr.IP, nil
+}
+
+const IP_SERVICE = "https://api.ipify.org?format=json"
+
+type IpResponse struct {
+	Ip string `json:"ip"`
+}
+
+func (i *IpResponse) GetIP() net.IP {
+	return net.ParseIP(i.Ip)
+}
+
+// GetPublicIP: get the nodes public IP address. For when a node is behind NAT
+func GetPublicIP() (net.IP, error) {
+	req, err := http.NewRequest(http.MethodGet, IP_SERVICE, nil)
+
+	if err != nil {
+		return nil, err
+	}
+
+	res, err := http.DefaultClient.Do(req)
+
+	if err != nil {
+		return nil, err
+	}
+
+	resBody, err := io.ReadAll(res.Body)
+
+	if err != nil {
+		return nil, err
+	}
+
+	var jsonResponse IpResponse
+
+	err = json.Unmarshal([]byte(resBody), &jsonResponse)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return jsonResponse.GetIP(), nil
 }

pkg/lib/random_test.go

@@ -0,0 +1,46 @@
+package lib
+
+import (
+	"slices"
+	"testing"
+)
+
+// Test that a random subset of length 0 produces a zero length
+// list
+func TestRandomSubsetOfLength0(t *testing.T) {
+	values := []int{1, 2, 3, 4, 5, 6, 7, 8}
+	randomValues := RandomSubsetOfLength(values, 0)
+
+	if len(randomValues) != 0 {
+		t.Fatalf(`Expected length to be 0`)
+	}
+}
+
+func TestRandomSubsetOfLength1(t *testing.T) {
+	values := []int{1, 2, 3, 4, 5}
+
+	randomValues := RandomSubsetOfLength(values, 1)
+
+	if len(randomValues) != 1 {
+		t.Fatalf(`Expected length to be 1`)
+	}
+
+	if !slices.Contains(values, randomValues[0]) {
+		t.Fatalf(`Expected length to be 1`)
+	}
+}
+
+func TestRandomSubsetEntireList(t *testing.T) {
+	values := []int{1, 2, 3, 4, 5}
+	randomValues := RandomSubsetOfLength(values, len(values))
+
+	if len(randomValues) != len(values) {
+		t.Fatalf(`Expected length to be %d was %d`, len(values), len(randomValues))
+	}
+
+	slices.Sort(randomValues)
+
+	if !slices.Equal(values, randomValues) {
+		t.Fatalf(`Expected slices to be equal`)
+	}
+}

pkg/lib/regex.go

@@ -0,0 +1,19 @@
+package lib
+
+import "regexp"
+
+func MatchCaptureGroup(pattern, payload string) map[string]string {
+	patterns := make(map[string]string)
+
+	expr := regexp.MustCompile(pattern)
+
+	match := expr.FindStringSubmatch(payload)
+
+	for i, name := range expr.SubexpNames() {
+		if i != 0 && name != "" {
+			patterns[name] = match[i]
+		}
+	}
+
+	return patterns
+}

pkg/lib/rtnetlink.go

@@ -0,0 +1,293 @@
+package lib
+
+import (
+	"encoding/binary"
+	"fmt"
+	"net"
+
+	"github.com/jsimonetti/rtnetlink"
+	logging "github.com/tim-beatham/wgmesh/pkg/log"
+	"golang.org/x/sys/unix"
+)
+
+type RtNetlinkConfig struct {
+	conn *rtnetlink.Conn
+}
+
+func NewRtNetlinkConfig() (*RtNetlinkConfig, error) {
+	conn, err := rtnetlink.Dial(nil)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &RtNetlinkConfig{conn: conn}, nil
+}
+
+const WIREGUARD_MTU = 1420
+
+// Create a netlink interface if it does not exist. ifName is the name of the netlink interface
+func (c *RtNetlinkConfig) CreateLink(ifName string) error {
+	_, err := net.InterfaceByName(ifName)
+
+	if err == nil {
+		return fmt.Errorf("interface %s already exists", ifName)
+	}
+
+	err = c.conn.Link.New(&rtnetlink.LinkMessage{
+		Family: unix.AF_UNSPEC,
+		Flags:  unix.IFF_UP,
+		Attributes: &rtnetlink.LinkAttributes{
+			Name: ifName,
+			Info: &rtnetlink.LinkInfo{Kind: "wireguard"},
+			MTU:  uint32(WIREGUARD_MTU),
+		},
+	})
+
+	if err != nil {
+		return fmt.Errorf("failed to create wireguard interface: %w", err)
+	}
+
+	return nil
+}
+
+// Delete link delete the specified interface
+func (c *RtNetlinkConfig) DeleteLink(ifName string) error {
+	iface, err := net.InterfaceByName(ifName)
+
+	if err != nil {
+		return fmt.Errorf("failed to get interface %s %w", ifName, err)
+	}
+
+	err = c.conn.Link.Delete(uint32(iface.Index))
+
+	if err != nil {
+		return fmt.Errorf("failed to delete wg interface %w", err)
+	}
+
+	return nil
+}
+
+// AddAddress adds an address to the given interface.
+func (c *RtNetlinkConfig) AddAddress(ifName string, address string) error {
+	iface, err := net.InterfaceByName(ifName)
+
+	if err != nil {
+		return fmt.Errorf("failed to get interface %s error: %w", ifName, err)
+	}
+
+	addr, cidr, err := net.ParseCIDR(address)
+
+	if err != nil {
+		return fmt.Errorf("failed to parse CIDR %s error: %w", addr, err)
+	}
+
+	family := unix.AF_INET6
+
+	ipv4 := cidr.IP.To4()
+
+	if ipv4 != nil {
+		family = unix.AF_INET
+	}
+
+	// Calculate the prefix length
+	ones, _ := cidr.Mask.Size()
+
+	// Calculate the broadcast IP
+	// Only used when family is AF_INET
+	var brd net.IP
+	if ipv4 != nil {
+		brd = make(net.IP, len(ipv4))
+		binary.BigEndian.PutUint32(brd, binary.BigEndian.Uint32(ipv4)|^binary.BigEndian.Uint32(net.IP(cidr.Mask).To4()))
+	}
+
+	err = c.conn.Address.New(&rtnetlink.AddressMessage{
+		Family:       uint8(family),
+		PrefixLength: uint8(ones),
+		Scope:        unix.RT_SCOPE_UNIVERSE,
+		Index:        uint32(iface.Index),
+		Attributes: &rtnetlink.AddressAttributes{
+			Address:   addr,
+			Local:     addr,
+			Broadcast: brd,
+		},
+	})
+
+	if err != nil {
+		err = fmt.Errorf("failed to add address to link %w", err)
+	}
+
+	return err
+}
+
+// AddRoute: adds a route to the routing table.
+// ifName is the intrface to add the route to
+// gateway is the IP of the gateway device to hop to
+// dst is the network prefix of the advertised destination
+func (c *RtNetlinkConfig) AddRoute(ifName string, route Route) error {
+	iface, err := net.InterfaceByName(ifName)
+
+	if err != nil {
+		return fmt.Errorf("failed accessing interface %s error %w", ifName, err)
+	}
+
+	gw := route.Gateway
+	dst := route.Destination
+
+	var family uint8 = unix.AF_INET6
+
+	if dst.IP.To4() != nil {
+		family = unix.AF_INET
+	}
+
+	attr := rtnetlink.RouteAttributes{
+		Dst:      dst.IP,
+		OutIface: uint32(iface.Index),
+		Gateway:  gw,
+	}
+
+	ones, _ := dst.Mask.Size()
+
+	err = c.conn.Route.Replace(&rtnetlink.RouteMessage{
+		Family:     family,
+		Table:      unix.RT_TABLE_MAIN,
+		Protocol:   unix.RTPROT_BOOT,
+		Scope:      unix.RT_SCOPE_LINK,
+		Type:       unix.RTN_UNICAST,
+		DstLength:  uint8(ones),
+		Attributes: attr,
+	})
+
+	if err != nil {
+		return fmt.Errorf("failed to add route %w", err)
+	}
+
+	return nil
+}
+
+// DeleteRoute deletes routes with the gateway and destination
+func (c *RtNetlinkConfig) DeleteRoute(ifName string, route Route) error {
+	iface, err := net.InterfaceByName(ifName)
+
+	if err != nil {
+		return fmt.Errorf("failed accessing interface %s error %w", ifName, err)
+	}
+
+	gw := route.Gateway
+	dst := route.Destination
+
+	var family uint8 = unix.AF_INET6
+
+	if dst.IP.To4() != nil {
+		family = unix.AF_INET
+	}
+
+	attr := rtnetlink.RouteAttributes{
+		Dst:      dst.IP,
+		OutIface: uint32(iface.Index),
+		Gateway:  gw,
+	}
+
+	ones, _ := dst.Mask.Size()
+
+	err = c.conn.Route.Delete(&rtnetlink.RouteMessage{
+		Family:     family,
+		Table:      unix.RT_TABLE_MAIN,
+		Protocol:   unix.RTPROT_BOOT,
+		Scope:      unix.RT_SCOPE_LINK,
+		Type:       unix.RTN_UNICAST,
+		DstLength:  uint8(ones),
+		Attributes: attr,
+	})
+
+	if err != nil {
+		return fmt.Errorf("failed to delete route %s", dst.IP.String())
+	}
+
+	return nil
+}
+
+type Route struct {
+	Gateway     net.IP
+	Destination net.IPNet
+}
+
+func (r1 Route) equal(r2 Route) bool {
+	return r1.Gateway.String() == r2.Gateway.String() &&
+		r1.Destination.String() == r2.Destination.String()
+}
+
+// DeleteRoutes deletes all routes not in exclude
+func (c *RtNetlinkConfig) DeleteRoutes(ifName string, family uint8, exclude ...Route) error {
+	routes, err := c.listRoutes(ifName, family)
+
+	if err != nil {
+		return err
+	}
+
+	ifRoutes := make([]Route, 0)
+
+	for _, rtRoute := range routes {
+		maskSize := 128
+
+		if family == unix.AF_INET {
+			maskSize = 32
+		}
+
+		cidr := net.CIDRMask(int(rtRoute.DstLength), maskSize)
+		route := Route{
+			Gateway:     rtRoute.Attributes.Gateway,
+			Destination: net.IPNet{IP: rtRoute.Attributes.Dst, Mask: cidr},
+		}
+
+		ifRoutes = append(ifRoutes, route)
+	}
+
+	shouldExclude := func(r Route) bool {
+		for _, route := range exclude {
+			if route.equal(r) {
+				return false
+			}
+		}
+		return true
+	}
+
+	toDelete := Filter(ifRoutes, shouldExclude)
+
+	for _, route := range toDelete {
+		logging.Log.WriteInfof("Deleting route: %s", route.Gateway.String())
+		err := c.DeleteRoute(ifName, route)
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// listRoutes lists all routes on the interface
+func (c *RtNetlinkConfig) listRoutes(ifName string, family uint8) ([]rtnetlink.RouteMessage, error) {
+	iface, err := net.InterfaceByName(ifName)
+
+	if err != nil {
+		return nil, fmt.Errorf("failed accessing interface %s error %w", ifName, err)
+	}
+
+	routes, err := c.conn.Route.List()
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to get route %w", err)
+	}
+
+	filterFunc := func(r rtnetlink.RouteMessage) bool {
+		return r.Attributes.Gateway != nil && r.Attributes.OutIface == uint32(iface.Index)
+	}
+
+	routes = Filter(routes, filterFunc)
+	return routes, nil
+}
+
+func (c *RtNetlinkConfig) Close() error {
+	return c.conn.Close()
+}

pkg/lib/stats.go

@@ -0,0 +1,40 @@
+// lib contains helper functions for the implementation
+package lib
+
+import (
+	"cmp"
+	"math"
+
+	"gonum.org/v1/gonum/stat"
+	"gonum.org/v1/gonum/stat/distuv"
+)
+
+// Modelling the distribution using a normal distribution get the count
+// of the outliers
+func GetOutliers[K cmp.Ordered](counts map[K]uint64, alpha float64) []K {
+	n := float64(len(counts))
+
+	keys := MapKeys(counts)
+	values := make([]float64, len(keys))
+
+	for index, key := range keys {
+		values[index] = float64(counts[key])
+	}
+
+	mean := stat.Mean(values, nil)
+	stdDev := stat.StdDev(values, nil)
+
+	moe := distuv.Normal{Mu: 0, Sigma: 1}.Quantile(1-alpha/2) * (stdDev / math.Sqrt(n))
+
+	lowerBound := mean - moe
+
+	var outliers []K
+
+	for i, count := range values {
+		if count < lowerBound {
+			outliers = append(outliers, keys[i])
+		}
+	}
+
+	return outliers
+}

pkg/lib/timer.go

@@ -0,0 +1,42 @@
+package lib
+
+import "time"
+
+type TimerFunc = func() error
+
+type Timer struct {
+	f          TimerFunc
+	quit       chan struct{}
+	updateRate int
+}
+
+func (t *Timer) Run() error {
+	ticker := time.NewTicker(time.Duration(t.updateRate) * time.Second)
+
+	t.quit = make(chan struct{})
+
+	for {
+		select {
+		case <-ticker.C:
+			err := t.f()
+
+			if err != nil {
+				return err
+			}
+		case <-t.quit:
+			break
+		}
+	}
+}
+
+func (t *Timer) Stop() error {
+	close(t.quit)
+	return nil
+}
+
+func NewTimer(f TimerFunc, updateRate int) *Timer {
+	return &Timer{
+		f:          f,
+		updateRate: updateRate,
+	}
+}

pkg/log/log.go

@@ -2,6 +2,7 @@
 package logging
 
 import (
+	"io"
 	"os"
 
 	"github.com/sirupsen/logrus"
@@ -15,6 +16,7 @@ type Logger interface {
 	WriteInfof(msg string, args ...interface{})
 	WriteErrorf(msg string, args ...interface{})
 	WriteWarnf(msg string, args ...interface{})
+	Writer() io.Writer
 }
 
 type LogrusLogger struct {
@@ -33,6 +35,10 @@ func (l *LogrusLogger) WriteWarnf(msg string, args ...interface{}) {
 	l.logger.Warnf(msg, args...)
 }
 
+func (l *LogrusLogger) Writer() io.Writer {
+	return l.logger.Writer()
+}
+
 func NewLogrusLogger() *LogrusLogger {
 	logger := logrus.New()
 	logger.SetFormatter(&logrus.TextFormatter{FullTimestamp: true})

pkg/mesh/alias.go

@@ -0,0 +1,46 @@
+package mesh
+
+import (
+	"fmt"
+
+	"github.com/tim-beatham/wgmesh/pkg/hosts"
+)
+
+type MeshAliasManager interface {
+	AddAliases(nodes []MeshNode)
+	RemoveAliases(node []MeshNode)
+}
+
+type AliasManager struct {
+	hosts hosts.HostsManipulator
+}
+
+// AddAliases: on node update or change add aliases to the hosts file
+func (a *AliasManager) AddAliases(nodes []MeshNode) {
+	for _, node := range nodes {
+		if node.GetAlias() != "" {
+			a.hosts.AddAddr(hosts.HostsEntry{
+				Alias: fmt.Sprintf("%s.smeg", node.GetAlias()),
+				Ip:    node.GetWgHost().IP,
+			})
+		}
+	}
+}
+
+// RemoveAliases: on node remove remove aliases from the hosts file
+func (a *AliasManager) RemoveAliases(nodes []MeshNode) {
+	for _, node := range nodes {
+		if node.GetAlias() != "" {
+			a.hosts.Remove(hosts.HostsEntry{
+				Alias: fmt.Sprintf("%s.smeg", node.GetAlias()),
+				Ip:    node.GetWgHost().IP,
+			})
+		}
+	}
+}
+
+func NewAliasManager() MeshAliasManager {
+	return &AliasManager{
+		hosts: hosts.NewHostsManipulator(),
+	}
+}

pkg/mesh/config.go

@@ -1,10 +1,17 @@
 package mesh
 
 import (
-	"errors"
 	"fmt"
 	"net"
+	"slices"
+	"strings"
+	"time"
 
+	"github.com/tim-beatham/wgmesh/pkg/conf"
+	"github.com/tim-beatham/wgmesh/pkg/ip"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+	logging "github.com/tim-beatham/wgmesh/pkg/log"
+	"github.com/tim-beatham/wgmesh/pkg/route"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 )
 
@@ -12,14 +19,25 @@ import (
 type MeshConfigApplyer interface {
 	ApplyConfig() error
 	RemovePeers(meshId string) error
+	SetMeshManager(manager MeshManager)
 }
 
 // WgMeshConfigApplyer applies WireGuard configuration
 type WgMeshConfigApplyer struct {
-	meshManager *MeshManager
+	meshManager    MeshManager
+	config         *conf.WgMeshConfiguration
+	routeInstaller route.RouteInstaller
 }
 
-func convertMeshNode(node MeshNode) (*wgtypes.PeerConfig, error) {
+type routeNode struct {
+	gateway string
+	route   Route
+}
+
+func (m *WgMeshConfigApplyer) convertMeshNode(node MeshNode, device *wgtypes.Device,
+	peerToClients map[string][]net.IPNet,
+	routes map[string][]routeNode) (*wgtypes.PeerConfig, error) {
+
 	endpoint, err := net.ResolveUDPAddr("udp", node.GetWgEndpoint())
 
 	if err != nil {
@@ -35,20 +53,228 @@ func convertMeshNode(node MeshNode) (*wgtypes.PeerConfig, error) {
 	allowedips := make([]net.IPNet, 1)
 	allowedips[0] = *node.GetWgHost()
 
+	clients, ok := peerToClients[pubKey.String()]
+
+	if ok {
+		allowedips = append(allowedips, clients...)
+	}
+
 	for _, route := range node.GetRoutes() {
-		_, ipnet, _ := net.ParseCIDR(route)
-		allowedips = append(allowedips, *ipnet)
+		bestRoutes := routes[route.GetDestination().String()]
+		var pickedRoute routeNode
+
+		if len(bestRoutes) == 1 {
+			pickedRoute = bestRoutes[0]
+		} else if len(bestRoutes) > 1 {
+			keyFunc := func(mn MeshNode) int {
+				pubKey, _ := mn.GetPublicKey()
+				return lib.HashString(pubKey.String())
+			}
+
+			bucketFunc := func(rn routeNode) int {
+				return lib.HashString(rn.gateway)
+			}
+
+			// Else there is more than one candidate so consistently hash
+			pickedRoute = lib.ConsistentHash(bestRoutes, node, bucketFunc, keyFunc)
+		}
+
+		if pickedRoute.gateway == pubKey.String() {
+			allowedips = append(allowedips, *pickedRoute.route.GetDestination())
+		}
+	}
+
+	keepAlive := time.Duration(m.config.KeepAliveWg) * time.Second
+
+	existing := slices.IndexFunc(device.Peers, func(p wgtypes.Peer) bool {
+		pubKey, _ := node.GetPublicKey()
+		return p.PublicKey.String() == pubKey.String()
+	})
+
+	if existing != -1 {
+		endpoint = device.Peers[existing].Endpoint
 	}
 
 	peerConfig := wgtypes.PeerConfig{
-		PublicKey:  pubKey,
-		Endpoint:   endpoint,
-		AllowedIPs: allowedips,
+		PublicKey:                   pubKey,
+		Endpoint:                    endpoint,
+		AllowedIPs:                  allowedips,
+		PersistentKeepaliveInterval: &keepAlive,
+		ReplaceAllowedIPs:           true,
 	}
 
 	return &peerConfig, nil
 }
 
+// getRoutes: finds the routes with the least hop distance. If more than one route exists
+// consistently hash to evenly spread the distribution of traffic
+func (m *WgMeshConfigApplyer) getRoutes(meshProvider MeshProvider) map[string][]routeNode {
+	mesh, _ := meshProvider.GetMesh()
+
+	routes := make(map[string][]routeNode)
+
+	meshPrefixes := lib.Map(lib.MapValues(m.meshManager.GetMeshes()), func(mesh MeshProvider) *net.IPNet {
+		ula := &ip.ULABuilder{}
+		ipNet, _ := ula.GetIPNet(mesh.GetMeshId())
+
+		return ipNet
+	})
+
+	for _, node := range mesh.GetNodes() {
+		pubKey, _ := node.GetPublicKey()
+
+		for _, route := range node.GetRoutes() {
+			if lib.Contains(meshPrefixes, func(prefix *net.IPNet) bool {
+				return prefix.Contains(route.GetDestination().IP)
+			}) {
+				continue
+			}
+
+			destination := route.GetDestination().String()
+			otherRoute, ok := routes[destination]
+
+			rn := routeNode{
+				gateway: pubKey.String(),
+				route:   route,
+			}
+
+			if !ok {
+				otherRoute = make([]routeNode, 1)
+				otherRoute[0] = rn
+				routes[destination] = otherRoute
+			} else if route.GetHopCount() < otherRoute[0].route.GetHopCount() {
+				otherRoute[0] = rn
+			} else if otherRoute[0].route.GetHopCount() == route.GetHopCount() {
+				logging.Log.WriteInfof("Other Route Hop: %d", otherRoute[0].route.GetHopCount())
+				logging.Log.WriteInfof("Route gateway %s, route hop %d", rn.gateway, route.GetHopCount())
+				routes[destination] = append(otherRoute, rn)
+			}
+		}
+	}
+
+	return routes
+}
+
+// getCorrespondignPeer: gets the peer corresponding to the client
+func (m *WgMeshConfigApplyer) getCorrespondingPeer(peers []MeshNode, client MeshNode) MeshNode {
+	hashFunc := func(mn MeshNode) int {
+		pubKey, _ := mn.GetPublicKey()
+		return lib.HashString(pubKey.String())
+	}
+
+	peer := lib.ConsistentHash(peers, client, hashFunc, hashFunc)
+	return peer
+}
+
+func (m *WgMeshConfigApplyer) getClientConfig(mesh MeshProvider, peers []MeshNode, clients []MeshNode) (*wgtypes.Config, error) {
+	self, err := m.meshManager.GetSelf(mesh.GetMeshId())
+
+	if err != nil {
+		return nil, err
+	}
+
+	peer := m.getCorrespondingPeer(peers, self)
+
+	pubKey, _ := peer.GetPublicKey()
+
+	keepAlive := time.Duration(m.config.KeepAliveWg) * time.Second
+	endpoint, err := net.ResolveUDPAddr("udp", peer.GetWgEndpoint())
+
+	if err != nil {
+		return nil, err
+	}
+
+	allowedips := make([]net.IPNet, 1)
+	_, ipnet, _ := net.ParseCIDR("::/0")
+	allowedips[0] = *ipnet
+
+	peerCfgs := make([]wgtypes.PeerConfig, 1)
+
+	peerCfgs[0] = wgtypes.PeerConfig{
+		PublicKey:                   pubKey,
+		Endpoint:                    endpoint,
+		PersistentKeepaliveInterval: &keepAlive,
+		AllowedIPs:                  allowedips,
+	}
+
+	cfg := wgtypes.Config{
+		Peers: peerCfgs,
+	}
+
+	return &cfg, err
+}
+
+func (m *WgMeshConfigApplyer) getPeerConfig(mesh MeshProvider, peers []MeshNode, clients []MeshNode, dev *wgtypes.Device) (*wgtypes.Config, error) {
+	peerToClients := make(map[string][]net.IPNet)
+	routes := m.getRoutes(mesh)
+	installedRoutes := make([]lib.Route, 0)
+	peerConfigs := make([]wgtypes.PeerConfig, 0)
+	self, err := m.meshManager.GetSelf(mesh.GetMeshId())
+
+	if err != nil {
+		return nil, err
+	}
+
+	for _, n := range clients {
+		if len(peers) > 0 {
+			peer := m.getCorrespondingPeer(peers, n)
+			pubKey, _ := peer.GetPublicKey()
+			clients, ok := peerToClients[pubKey.String()]
+
+			if !ok {
+				clients = make([]net.IPNet, 0)
+				peerToClients[pubKey.String()] = clients
+			}
+
+			peerToClients[pubKey.String()] = append(clients, *n.GetWgHost())
+
+			if NodeEquals(self, peer) {
+				cfg, err := m.convertMeshNode(n, dev, peerToClients, routes)
+
+				if err != nil {
+					return nil, err
+				}
+
+				peerConfigs = append(peerConfigs, *cfg)
+			}
+		}
+	}
+
+	for _, n := range peers {
+		if NodeEquals(n, self) {
+			continue
+		}
+
+		peer, err := m.convertMeshNode(n, dev, peerToClients, routes)
+
+		if err != nil {
+			return nil, err
+		}
+
+		for _, route := range peer.AllowedIPs {
+			ula := &ip.ULABuilder{}
+			ipNet, _ := ula.GetIPNet(mesh.GetMeshId())
+
+			if !ipNet.Contains(route.IP) {
+				installedRoutes = append(installedRoutes, lib.Route{
+					Gateway:     n.GetWgHost().IP,
+					Destination: route,
+				})
+			}
+		}
+
+		peerConfigs = append(peerConfigs, *peer)
+	}
+
+	cfg := wgtypes.Config{
+		Peers:        peerConfigs,
+		ReplacePeers: true,
+	}
+
+	err = m.routeInstaller.InstallRoutes(dev.Name, installedRoutes...)
+	return &cfg, err
+}
+
 func (m *WgMeshConfigApplyer) updateWgConf(mesh MeshProvider) error {
 	snap, err := mesh.GetMesh()
 
@@ -56,37 +282,51 @@ func (m *WgMeshConfigApplyer) updateWgConf(mesh MeshProvider) error {
 		return err
 	}
 
-	nodes := snap.GetNodes()
-	peerConfigs := make([]wgtypes.PeerConfig, len(nodes))
+	nodes := lib.MapValues(snap.GetNodes())
+	dev, _ := mesh.GetDevice()
 
-	var count int = 0
+	slices.SortFunc(nodes, func(a, b MeshNode) int {
+		return strings.Compare(string(a.GetType()), string(b.GetType()))
+	})
 
-	for _, n := range nodes {
-		peer, err := convertMeshNode(n)
+	peers := lib.Filter(nodes, func(mn MeshNode) bool {
+		return mn.GetType() == conf.PEER_ROLE
+	})
 
-		if err != nil {
-			return err
-		}
+	clients := lib.Filter(nodes, func(mn MeshNode) bool {
+		return mn.GetType() == conf.CLIENT_ROLE
+	})
 
-		peerConfigs[count] = *peer
-		count++
-	}
-
-	cfg := wgtypes.Config{
-		Peers: peerConfigs,
-	}
-
-	dev, err := mesh.GetDevice()
+	self, err := m.meshManager.GetSelf(mesh.GetMeshId())
 
 	if err != nil {
 		return err
 	}
 
-	return m.meshManager.Client.ConfigureDevice(dev.Name, cfg)
+	var cfg *wgtypes.Config = nil
+
+	switch self.GetType() {
+	case conf.PEER_ROLE:
+		cfg, err = m.getPeerConfig(mesh, peers, clients, dev)
+	case conf.CLIENT_ROLE:
+		cfg, err = m.getClientConfig(mesh, peers, clients)
+	}
+
+	if err != nil {
+		return err
+	}
+
+	err = m.meshManager.GetClient().ConfigureDevice(dev.Name, *cfg)
+
+	if err != nil {
+		return err
+	}
+
+	return nil
 }
 
 func (m *WgMeshConfigApplyer) ApplyConfig() error {
-	for _, mesh := range m.meshManager.Meshes {
+	for _, mesh := range m.meshManager.GetMeshes() {
 		err := m.updateWgConf(mesh)
 
 		if err != nil {
@@ -101,7 +341,7 @@ func (m *WgMeshConfigApplyer) RemovePeers(meshId string) error {
 	mesh := m.meshManager.GetMesh(meshId)
 
 	if mesh == nil {
-		return errors.New(fmt.Sprintf("mesh %s does not exist", meshId))
+		return fmt.Errorf("mesh %s does not exist", meshId)
 	}
 
 	dev, err := mesh.GetDevice()
@@ -110,14 +350,21 @@ func (m *WgMeshConfigApplyer) RemovePeers(meshId string) error {
 		return err
 	}
 
-	m.meshManager.Client.ConfigureDevice(dev.Name, wgtypes.Config{
+	m.meshManager.GetClient().ConfigureDevice(dev.Name, wgtypes.Config{
+		Peers:        make([]wgtypes.PeerConfig, 0),
 		ReplacePeers: true,
-		Peers:        make([]wgtypes.PeerConfig, 1),
 	})
 
 	return nil
 }
 
-func NewWgMeshConfigApplyer(manager *MeshManager) MeshConfigApplyer {
-	return &WgMeshConfigApplyer{meshManager: manager}
+func (m *WgMeshConfigApplyer) SetMeshManager(manager MeshManager) {
+	m.meshManager = manager
+}
+
+func NewWgMeshConfigApplyer(config *conf.WgMeshConfiguration) MeshConfigApplyer {
+	return &WgMeshConfigApplyer{
+		config:         config,
+		routeInstaller: route.NewRouteInstaller(),
+	}
 }

pkg/mesh/graph.go

@@ -15,7 +15,7 @@ type MeshGraphConverter interface {
 }
 
 type MeshDOTConverter struct {
-	manager *MeshManager
+	manager MeshManager
 }
 
 func (c *MeshDOTConverter) Generate(meshId string) (string, error) {
@@ -34,7 +34,7 @@ func (c *MeshDOTConverter) Generate(meshId string) (string, error) {
 	}
 
 	for _, node := range snapshot.GetNodes() {
-		c.graphNode(g, node)
+		c.graphNode(g, node, meshId)
 	}
 
 	nodes := lib.MapValues(snapshot.GetNodes())
@@ -55,11 +55,13 @@ func (c *MeshDOTConverter) Generate(meshId string) (string, error) {
 }
 
 // graphNode: graphs a node within the mesh
-func (c *MeshDOTConverter) graphNode(g *graph.Graph, node MeshNode) {
+func (c *MeshDOTConverter) graphNode(g *graph.Graph, node MeshNode, meshId string) {
 	nodeId := fmt.Sprintf("\"%s\"", node.GetIdentifier())
 	g.PutNode(nodeId, graph.CIRCLE)
 
-	if node.GetHostEndpoint() == c.manager.HostParameters.HostEndpoint {
+	self, _ := c.manager.GetSelf(meshId)
+
+	if NodeEquals(self, node) {
 		return
 	}
 
@@ -70,6 +72,6 @@ func (c *MeshDOTConverter) graphNode(g *graph.Graph, node MeshNode) {
 	}
 }
 
-func NewMeshDotConverter(m *MeshManager) MeshGraphConverter {
+func NewMeshDotConverter(m MeshManager) MeshGraphConverter {
 	return &MeshDOTConverter{manager: m}
 }

pkg/mesh/manager.go

@@ -3,17 +3,42 @@ package mesh
 import (
 	"errors"
 	"fmt"
+	"sync"
 
 	"github.com/tim-beatham/wgmesh/pkg/conf"
 	"github.com/tim-beatham/wgmesh/pkg/ip"
 	"github.com/tim-beatham/wgmesh/pkg/lib"
-	logging "github.com/tim-beatham/wgmesh/pkg/log"
 	"github.com/tim-beatham/wgmesh/pkg/wg"
 	"golang.zx2c4.com/wireguard/wgctrl"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 )
 
-type MeshManager struct {
+type MeshManager interface {
+	CreateMesh(port int) (string, error)
+	AddMesh(params *AddMeshParams) error
+	HasChanges(meshid string) bool
+	GetMesh(meshId string) MeshProvider
+	GetPublicKey() *wgtypes.Key
+	AddSelf(params *AddSelfParams) error
+	LeaveMesh(meshId string) error
+	GetSelf(meshId string) (MeshNode, error)
+	ApplyConfig() error
+	SetDescription(description string) error
+	SetAlias(alias string) error
+	SetService(service string, value string) error
+	RemoveService(service string) error
+	UpdateTimeStamp() error
+	GetClient() *wgctrl.Client
+	GetMeshes() map[string]MeshProvider
+	Prune() error
+	Close() error
+	GetMonitor() MeshMonitor
+	GetNode(string, string) MeshNode
+	GetRouteManager() RouteManager
+}
+
+type MeshManagerImpl struct {
+	lock         sync.RWMutex
 	Meshes       map[string]MeshProvider
 	RouteManager RouteManager
 	Client       *wgctrl.Client
@@ -27,62 +52,138 @@ type MeshManager struct {
 	idGenerator          lib.IdGenerator
 	ipAllocator          ip.IPAllocator
 	interfaceManipulator wg.WgInterfaceManipulator
+	Monitor              MeshMonitor
+	OnDelete             func(MeshProvider)
+}
+
+// GetRouteManager implements MeshManager.
+func (m *MeshManagerImpl) GetRouteManager() RouteManager {
+	return m.RouteManager
+}
+
+// RemoveService implements MeshManager.
+func (m *MeshManagerImpl) RemoveService(service string) error {
+	for _, mesh := range m.Meshes {
+		err := mesh.RemoveService(m.HostParameters.GetPublicKey(), service)
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// SetService implements MeshManager.
+func (m *MeshManagerImpl) SetService(service string, value string) error {
+	for _, mesh := range m.Meshes {
+		err := mesh.AddService(m.HostParameters.GetPublicKey(), service, value)
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (m *MeshManagerImpl) GetNode(meshid, nodeId string) MeshNode {
+	mesh, ok := m.Meshes[meshid]
+
+	if !ok {
+		return nil
+	}
+
+	node, err := mesh.GetNode(nodeId)
+
+	if err != nil {
+		return nil
+	}
+
+	return node
+}
+
+// GetMonitor implements MeshManager.
+func (m *MeshManagerImpl) GetMonitor() MeshMonitor {
+	return m.Monitor
+}
+
+// Prune implements MeshManager.
+func (m *MeshManagerImpl) Prune() error {
+	for _, mesh := range m.Meshes {
+		err := mesh.Prune()
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
 }
 
 // CreateMesh: Creates a new mesh, stores it and returns the mesh id
-func (m *MeshManager) CreateMesh(devName string, port int) (string, error) {
+func (m *MeshManagerImpl) CreateMesh(port int) (string, error) {
 	meshId, err := m.idGenerator.GetId()
 
+	var ifName string = ""
+
 	if err != nil {
 		return "", err
 	}
 
+	if !m.conf.StubWg {
+		ifName, err = m.interfaceManipulator.CreateInterface(port, m.HostParameters.PrivateKey)
+
+		if err != nil {
+			return "", fmt.Errorf("error creating mesh: %w", err)
+		}
+	}
+
 	nodeManager, err := m.meshProviderFactory.CreateMesh(&MeshProviderFactoryParams{
-		DevName: devName,
+		DevName: ifName,
 		Port:    port,
 		Conf:    m.conf,
 		Client:  m.Client,
 		MeshId:  meshId,
+		NodeID:  m.HostParameters.GetPublicKey(),
 	})
 
 	if err != nil {
-		return "", err
-	}
-
-	err = m.interfaceManipulator.CreateInterface(&wg.CreateInterfaceParams{
-		IfName: devName,
-		Port:   port,
-	})
-
-	if err != nil {
-		return "", nil
+		return "", fmt.Errorf("error creating mesh: %w", err)
 	}
 
+	m.lock.Lock()
 	m.Meshes[meshId] = nodeManager
-	err = m.configApplyer.RemovePeers(meshId)
-
-	if err != nil {
-		logging.Log.WriteErrorf(err.Error())
-	}
-
+	m.lock.Unlock()
 	return meshId, nil
 }
 
 type AddMeshParams struct {
 	MeshId    string
-	DevName   string
 	WgPort    int
 	MeshBytes []byte
 }
 
 // AddMesh: Add the mesh to the list of meshes
-func (m *MeshManager) AddMesh(params *AddMeshParams) error {
+func (m *MeshManagerImpl) AddMesh(params *AddMeshParams) error {
+	var ifName string
+	var err error
+
+	if !m.conf.StubWg {
+		ifName, err = m.interfaceManipulator.CreateInterface(params.WgPort, m.HostParameters.PrivateKey)
+
+		if err != nil {
+			return err
+		}
+	}
+
 	meshProvider, err := m.meshProviderFactory.CreateMesh(&MeshProviderFactoryParams{
-		DevName: params.DevName,
+		DevName: ifName,
 		Port:    params.WgPort,
 		Conf:    m.conf,
 		Client:  m.Client,
 		MeshId:  params.MeshId,
+		NodeID:  m.HostParameters.GetPublicKey(),
 	})
 
 	if err != nil {
@@ -95,69 +196,27 @@ func (m *MeshManager) AddMesh(params *AddMeshParams) error {
 		return err
 	}
 
+	m.lock.Lock()
 	m.Meshes[params.MeshId] = meshProvider
-
-	return m.interfaceManipulator.CreateInterface(&wg.CreateInterfaceParams{
-		IfName: params.DevName,
-		Port:   params.WgPort,
-	})
+	m.lock.Unlock()
+	return nil
 }
 
 // HasChanges returns true if the mesh has changes
-func (m *MeshManager) HasChanges(meshId string) bool {
+func (m *MeshManagerImpl) HasChanges(meshId string) bool {
 	return m.Meshes[meshId].HasChanges()
 }
 
 // GetMesh returns the mesh with the given meshid
-func (m *MeshManager) GetMesh(meshId string) MeshProvider {
-	theMesh, _ := m.Meshes[meshId]
+func (m *MeshManagerImpl) GetMesh(meshId string) MeshProvider {
+	theMesh := m.Meshes[meshId]
 	return theMesh
 }
 
-// EnableInterface: Enables the given WireGuard interface.
-func (s *MeshManager) EnableInterface(meshId string) error {
-	err := s.configApplyer.ApplyConfig()
-
-	if err != nil {
-		return err
-	}
-
-	meshNode, err := s.GetSelf(meshId)
-
-	if err != nil {
-		return err
-	}
-
-	mesh := s.GetMesh(meshId)
-
-	if err != nil {
-		return err
-	}
-
-	dev, err := mesh.GetDevice()
-
-	if err != nil {
-		return err
-	}
-
-	return s.interfaceManipulator.EnableInterface(dev.Name, meshNode.GetWgHost().String())
-}
-
 // GetPublicKey: Gets the public key of the WireGuard mesh
-func (s *MeshManager) GetPublicKey(meshId string) (*wgtypes.Key, error) {
-	mesh, ok := s.Meshes[meshId]
-
-	if !ok {
-		return nil, errors.New("mesh does not exist")
-	}
-
-	dev, err := mesh.GetDevice()
-
-	if err != nil {
-		return nil, err
-	}
-
-	return &dev.PublicKey, nil
+func (s *MeshManagerImpl) GetPublicKey() *wgtypes.Key {
+	key := s.HostParameters.PrivateKey.PublicKey()
+	return &key
 }
 
 type AddSelfParams struct {
@@ -166,103 +225,212 @@ type AddSelfParams struct {
 	// WgPort is the WireGuard port to advertise
 	WgPort int
 	// Endpoint is the alias of the machine to send routable packets
-	// to
 	Endpoint string
 }
 
 // AddSelf adds this host to the mesh
-func (s *MeshManager) AddSelf(params *AddSelfParams) error {
-	pubKey, err := s.GetPublicKey(params.MeshId)
+func (s *MeshManagerImpl) AddSelf(params *AddSelfParams) error {
+	mesh := s.GetMesh(params.MeshId)
 
-	if err != nil {
-		return err
+	if mesh == nil {
+		return fmt.Errorf("addself: mesh %s does not exist", params.MeshId)
 	}
 
-	nodeIP, err := s.ipAllocator.GetIP(*pubKey, params.MeshId)
+	if params.WgPort == 0 && !s.conf.StubWg {
+		device, err := mesh.GetDevice()
+
+		if err != nil {
+			return err
+		}
+
+		params.WgPort = device.ListenPort
+	}
+
+	pubKey := s.HostParameters.PrivateKey.PublicKey()
+
+	nodeIP, err := s.ipAllocator.GetIP(pubKey, params.MeshId)
 
 	if err != nil {
 		return err
 	}
 
 	node := s.nodeFactory.Build(&MeshNodeFactoryParams{
-		PublicKey: pubKey,
+		PublicKey: &pubKey,
 		NodeIP:    nodeIP,
 		WgPort:    params.WgPort,
 		Endpoint:  params.Endpoint,
 	})
 
+	if !s.conf.StubWg {
+		device, err := mesh.GetDevice()
+
+		if err != nil {
+			return fmt.Errorf("failed to get device %w", err)
+		}
+
+		err = s.interfaceManipulator.AddAddress(device.Name, fmt.Sprintf("%s/64", nodeIP))
+
+		if err != nil {
+			return fmt.Errorf("addSelf: failed to add address to dev %w", err)
+		}
+	}
+
 	s.Meshes[params.MeshId].AddNode(node)
 	return s.RouteManager.UpdateRoutes()
 }
 
 // LeaveMesh leaves the mesh network
-func (s *MeshManager) LeaveMesh(meshId string) error {
-	_, exists := s.Meshes[meshId]
+func (s *MeshManagerImpl) LeaveMesh(meshId string) error {
+	mesh := s.GetMesh(meshId)
 
-	if !exists {
-		return errors.New(fmt.Sprintf("mesh %s does not exist", meshId))
+	if mesh == nil {
+		return fmt.Errorf("mesh %s does not exist", meshId)
 	}
 
-	// For now just delete the mesh with the ID.
+	var err error
+
+	s.RouteManager.RemoveRoutes(meshId)
+	err = mesh.RemoveNode(s.HostParameters.GetPublicKey())
+
+	if err != nil {
+		return err
+	}
+
+	if s.OnDelete != nil {
+		s.OnDelete(mesh)
+	}
+
+	s.lock.Lock()
 	delete(s.Meshes, meshId)
-	return nil
+	s.lock.Unlock()
+
+	if !s.conf.StubWg {
+		device, err := mesh.GetDevice()
+
+		if err != nil {
+			return err
+		}
+
+		err = s.interfaceManipulator.RemoveInterface(device.Name)
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return err
 }
 
-func (s *MeshManager) GetSelf(meshId string) (MeshNode, error) {
+func (s *MeshManagerImpl) GetSelf(meshId string) (MeshNode, error) {
 	meshInstance, ok := s.Meshes[meshId]
 
 	if !ok {
-		return nil, errors.New(fmt.Sprintf("mesh %s does not exist", meshId))
+		return nil, fmt.Errorf("mesh %s does not exist", meshId)
 	}
 
-	snapshot, err := meshInstance.GetMesh()
+	node, err := meshInstance.GetNode(s.HostParameters.GetPublicKey())
 
 	if err != nil {
-		return nil, err
-	}
-
-	node, ok := snapshot.GetNodes()[s.HostParameters.HostEndpoint]
-
-	if !ok {
 		return nil, errors.New("the node doesn't exist in the mesh")
 	}
 
 	return node, nil
 }
 
-func (s *MeshManager) ApplyConfig() error {
-	return s.configApplyer.ApplyConfig()
+func (s *MeshManagerImpl) ApplyConfig() error {
+	if s.conf.StubWg {
+		return nil
+	}
+
+	err := s.configApplyer.ApplyConfig()
+
+	if err != nil {
+		return err
+	}
+
+	return nil
 }
 
-func (s *MeshManager) SetDescription(description string) error {
-	for _, mesh := range s.Meshes {
-		err := mesh.SetDescription(s.HostParameters.HostEndpoint, description)
+func (s *MeshManagerImpl) SetDescription(description string) error {
+	meshes := s.GetMeshes()
+	for _, mesh := range meshes {
+		if mesh.NodeExists(s.HostParameters.GetPublicKey()) {
+			err := mesh.SetDescription(s.HostParameters.GetPublicKey(), description)
 
-		if err != nil {
-			return err
+			if err != nil {
+				return err
+			}
 		}
 	}
 
 	return nil
 }
 
+// SetAlias implements MeshManager.
+func (s *MeshManagerImpl) SetAlias(alias string) error {
+	meshes := s.GetMeshes()
+	for _, mesh := range meshes {
+		if mesh.NodeExists(s.HostParameters.GetPublicKey()) {
+			err := mesh.SetAlias(s.HostParameters.GetPublicKey(), alias)
+
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
 // UpdateTimeStamp updates the timestamp of this node in all meshes
-func (s *MeshManager) UpdateTimeStamp() error {
+func (s *MeshManagerImpl) UpdateTimeStamp() error {
+	meshes := s.GetMeshes()
+	for _, mesh := range meshes {
+		if mesh.NodeExists(s.HostParameters.GetPublicKey()) {
+			err := mesh.UpdateTimeStamp(s.HostParameters.GetPublicKey())
+
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+func (s *MeshManagerImpl) GetClient() *wgctrl.Client {
+	return s.Client
+}
+
+func (s *MeshManagerImpl) GetMeshes() map[string]MeshProvider {
+	meshes := make(map[string]MeshProvider)
+
+	s.lock.RLock()
+
+	for id, mesh := range s.Meshes {
+		meshes[id] = mesh
+	}
+
+	s.lock.RUnlock()
+	return meshes
+}
+
+// Close the mesh manager
+func (s *MeshManagerImpl) Close() error {
+	if s.conf.StubWg {
+		return nil
+	}
+
 	for _, mesh := range s.Meshes {
-		snapshot, err := mesh.GetMesh()
+		dev, err := mesh.GetDevice()
 
 		if err != nil {
 			return err
 		}
 
-		_, exists := snapshot.GetNodes()[s.HostParameters.HostEndpoint]
+		err = s.interfaceManipulator.RemoveInterface(dev.Name)
 
-		if exists {
-			err = mesh.UpdateTimeStamp(s.HostParameters.HostEndpoint)
-
-			if err != nil {
-				return err
-			}
+		if err != nil {
+			return err
 		}
 	}
 
@@ -278,22 +446,19 @@ type NewMeshManagerParams struct {
 	IdGenerator          lib.IdGenerator
 	IPAllocator          ip.IPAllocator
 	InterfaceManipulator wg.WgInterfaceManipulator
+	ConfigApplyer        MeshConfigApplyer
+	RouteManager         RouteManager
+	OnDelete             func(MeshProvider)
 }
 
 // Creates a new instance of a mesh manager with the given parameters
-func NewMeshManager(params *NewMeshManagerParams) *MeshManager {
-	hostParams := HostParameters{}
-
-	switch params.Conf.Endpoint {
-	case "":
-		hostParams.HostEndpoint = fmt.Sprintf("%s:%s", lib.GetOutboundIP().String(), params.Conf.GrpcPort)
-	default:
-		hostParams.HostEndpoint = fmt.Sprintf("%s:%s", params.Conf.Endpoint, params.Conf.GrpcPort)
+func NewMeshManager(params *NewMeshManagerParams) MeshManager {
+	privateKey, _ := wgtypes.GeneratePrivateKey()
+	hostParams := HostParameters{
+		PrivateKey: &privateKey,
 	}
 
-	logging.Log.WriteInfof("Endpoint %s", hostParams.HostEndpoint)
-
-	m := &MeshManager{
+	m := &MeshManagerImpl{
 		Meshes:              make(map[string]MeshProvider),
 		HostParameters:      &hostParams,
 		meshProviderFactory: params.MeshProvider,
@@ -301,10 +466,23 @@ func NewMeshManager(params *NewMeshManagerParams) *MeshManager {
 		Client:              params.Client,
 		conf:                &params.Conf,
 	}
-	m.configApplyer = NewWgMeshConfigApplyer(m)
-	m.RouteManager = NewRouteManager(m)
+
+	m.configApplyer = params.ConfigApplyer
+	m.RouteManager = params.RouteManager
+
+	if m.RouteManager == nil {
+		m.RouteManager = NewRouteManager(m)
+	}
+
 	m.idGenerator = params.IdGenerator
 	m.ipAllocator = params.IPAllocator
 	m.interfaceManipulator = params.InterfaceManipulator
+
+	m.Monitor = NewMeshMonitor(m)
+
+	aliasManager := NewAliasManager()
+	m.Monitor.AddUpdateCallback(aliasManager.AddAliases)
+	m.Monitor.AddRemoveCallback(aliasManager.RemoveAliases)
+	m.OnDelete = params.OnDelete
 	return m
 }

pkg/mesh/manager_test.go

@@ -0,0 +1,243 @@
+package mesh
+
+import (
+	"testing"
+
+	"github.com/tim-beatham/wgmesh/pkg/conf"
+	"github.com/tim-beatham/wgmesh/pkg/ip"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+	"github.com/tim-beatham/wgmesh/pkg/wg"
+)
+
+func getMeshConfiguration() *conf.WgMeshConfiguration {
+	return &conf.WgMeshConfiguration{
+		GrpcPort:           "8080",
+		Endpoint:           "abc.com",
+		ClusterSize:        64,
+		SyncRate:           4,
+		BranchRate:         3,
+		InterClusterChance: 0.15,
+		InfectionCount:     2,
+		KeepAliveTime:      60,
+	}
+}
+
+func getMeshManager() MeshManager {
+	manager := NewMeshManager(&NewMeshManagerParams{
+		Conf:                 *getMeshConfiguration(),
+		Client:               nil,
+		MeshProvider:         &StubMeshProviderFactory{},
+		NodeFactory:          &StubNodeFactory{Config: getMeshConfiguration()},
+		IdGenerator:          &lib.UUIDGenerator{},
+		IPAllocator:          &ip.ULABuilder{},
+		InterfaceManipulator: &wg.WgInterfaceManipulatorStub{},
+		ConfigApplyer:        &MeshConfigApplyerStub{},
+		RouteManager:         &RouteManagerStub{},
+	})
+
+	return manager
+}
+
+func TestCreateMeshCreatesANewMeshProvider(t *testing.T) {
+	manager := getMeshManager()
+
+	meshId, err := manager.CreateMesh("wg0", 5000)
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if len(meshId) == 0 {
+		t.Fatal(`meshId should not be empty`)
+	}
+
+	_, exists := manager.GetMeshes()[meshId]
+
+	if !exists {
+		t.Fatal(`mesh was not created when it should be`)
+	}
+}
+
+func TestAddMeshAddsAMesh(t *testing.T) {
+	manager := getMeshManager()
+	meshId := "meshid123"
+
+	manager.AddMesh(&AddMeshParams{
+		MeshId:    meshId,
+		WgPort:    6000,
+		MeshBytes: make([]byte, 0),
+	})
+
+	mesh := manager.GetMesh(meshId)
+
+	if mesh == nil || mesh.GetMeshId() != meshId {
+		t.Fatalf(`mesh has not been added to the list of meshes`)
+	}
+}
+
+func TestAddMeshMeshAlreadyExistsReplacesIt(t *testing.T) {
+	manager := getMeshManager()
+	meshId := "meshid123"
+
+	for i := 0; i < 2; i++ {
+		err := manager.AddMesh(&AddMeshParams{
+			MeshId:    meshId,
+			WgPort:    6000,
+			MeshBytes: make([]byte, 0),
+		})
+
+		if err != nil {
+			t.Error(err)
+		}
+	}
+
+	mesh := manager.GetMesh(meshId)
+
+	if mesh == nil || mesh.GetMeshId() != meshId {
+		t.Fatalf(`mesh has not been added to the list of meshes`)
+	}
+}
+
+func TestAddSelfAddsSelfToTheMesh(t *testing.T) {
+	manager := getMeshManager()
+	meshId := "meshid123"
+
+	err := manager.AddMesh(&AddMeshParams{
+		MeshId:    meshId,
+		WgPort:    6000,
+		MeshBytes: make([]byte, 0),
+	})
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	err = manager.AddSelf(&AddSelfParams{
+		MeshId:   meshId,
+		WgPort:   5000,
+		Endpoint: "abc.com",
+	})
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	mesh, err := manager.GetMesh(meshId).GetMesh()
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	_, ok := mesh.GetNodes()["abc.com"]
+
+	if !ok {
+		t.Fatalf(`node has not been added`)
+	}
+}
+
+func TestAddSelfToMeshAlreadyInMesh(t *testing.T) {
+	TestAddSelfAddsSelfToTheMesh(t)
+	TestAddSelfAddsSelfToTheMesh(t)
+}
+
+func TestAddSelfToMeshMeshDoesNotExist(t *testing.T) {
+	manager := getMeshManager()
+	meshId := "meshid123"
+
+	err := manager.AddSelf(&AddSelfParams{
+		MeshId:   meshId,
+		WgPort:   5000,
+		Endpoint: "abc.com",
+	})
+
+	if err == nil {
+		t.Fatalf(`Expected error to be thrown`)
+	}
+}
+
+func TestLeaveMeshMeshDoesNotExist(t *testing.T) {
+	manager := getMeshManager()
+	meshId := "meshid123"
+
+	err := manager.LeaveMesh(meshId)
+
+	if err == nil {
+		t.Fatalf(`Expected error to be thrown`)
+	}
+}
+
+func TestLeaveMeshDeletesMesh(t *testing.T) {
+	manager := getMeshManager()
+	meshId := "meshid123"
+
+	err := manager.AddMesh(&AddMeshParams{
+		MeshId:    meshId,
+		WgPort:    6000,
+		MeshBytes: make([]byte, 0),
+	})
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	err = manager.LeaveMesh(meshId)
+
+	if err != nil {
+		t.Fatalf("%s", err.Error())
+	}
+
+	_, exists := manager.GetMeshes()[meshId]
+
+	if exists {
+		t.Fatalf(`expected mesh to have been deleted`)
+	}
+}
+
+func TestSetDescription(t *testing.T) {
+	manager := getMeshManager()
+	description := "wooooo"
+
+	meshId1, _ := manager.CreateMesh(5000)
+	meshId2, _ := manager.CreateMesh(5001)
+
+	manager.AddSelf(&AddSelfParams{
+		MeshId:   meshId1,
+		WgPort:   5000,
+		Endpoint: "abc.com:8080",
+	})
+	manager.AddSelf(&AddSelfParams{
+		MeshId:   meshId2,
+		WgPort:   5000,
+		Endpoint: "abc.com:8080",
+	})
+
+	err := manager.SetDescription(description)
+
+	if err != nil {
+		t.Fatalf(`failed to set the descriptions`)
+	}
+}
+
+func TestUpdateTimeStampUpdatesAllMeshes(t *testing.T) {
+	manager := getMeshManager()
+
+	meshId1, _ := manager.CreateMesh(5000)
+	meshId2, _ := manager.CreateMesh(5001)
+
+	manager.AddSelf(&AddSelfParams{
+		MeshId:   meshId1,
+		WgPort:   5000,
+		Endpoint: "abc.com:8080",
+	})
+	manager.AddSelf(&AddSelfParams{
+		MeshId:   meshId2,
+		WgPort:   5000,
+		Endpoint: "abc.com:8080",
+	})
+
+	err := manager.UpdateTimeStamp()
+
+	if err != nil {
+		t.Fatalf(`failed to update the timestamp`)
+	}
+}

pkg/mesh/monitor.go

@@ -0,0 +1,81 @@
+package mesh
+
+type OnChange = func([]MeshNode)
+
+type MeshMonitor interface {
+	AddUpdateCallback(cb OnChange)
+	AddRemoveCallback(cb OnChange)
+	Trigger() error
+}
+
+type MeshMonitorImpl struct {
+	updateCbs []OnChange
+	removeCbs []OnChange
+	nodes     map[string]MeshNode
+	manager   MeshManager
+}
+
+// Trigger causes the mesh monitor to trigger all of
+// the callbacks.
+func (m *MeshMonitorImpl) Trigger() error {
+	changedNodes := make([]MeshNode, 0)
+	removedNodes := make([]MeshNode, 0)
+
+	nodes := make(map[string]MeshNode)
+
+	for _, mesh := range m.manager.GetMeshes() {
+		snapshot, err := mesh.GetMesh()
+
+		if err != nil {
+			return err
+		}
+
+		for _, node := range snapshot.GetNodes() {
+			previous, exists := m.nodes[node.GetWgHost().String()]
+
+			if !exists || !NodeEquals(previous, node) {
+				changedNodes = append(changedNodes, node)
+			}
+
+			nodes[node.GetWgHost().String()] = node
+		}
+	}
+
+	for _, previous := range m.nodes {
+		_, ok := nodes[previous.GetWgHost().String()]
+
+		if !ok {
+			removedNodes = append(removedNodes, previous)
+		}
+	}
+
+	if len(removedNodes) > 0 {
+		for _, cb := range m.removeCbs {
+			cb(removedNodes)
+		}
+	}
+
+	if len(changedNodes) > 0 {
+		for _, cb := range m.updateCbs {
+			cb(changedNodes)
+		}
+	}
+
+	return nil
+}
+
+func (m *MeshMonitorImpl) AddUpdateCallback(cb OnChange) {
+	m.updateCbs = append(m.updateCbs, cb)
+}
+
+func (m *MeshMonitorImpl) AddRemoveCallback(cb OnChange) {
+	m.removeCbs = append(m.removeCbs, cb)
+}
+
+func NewMeshMonitor(manager MeshManager) MeshMonitor {
+	return &MeshMonitorImpl{
+		updateCbs: make([]OnChange, 0),
+		nodes:     make(map[string]MeshNode),
+		manager:   manager,
+	}
+}

pkg/mesh/pruner.go

@@ -0,0 +1,16 @@
+package mesh
+
+import (
+	"github.com/tim-beatham/wgmesh/pkg/conf"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+)
+
+func pruneFunction(m MeshManager) lib.TimerFunc {
+	return func() error {
+		return m.Prune()
+	}
+}
+
+func NewPruner(m MeshManager, conf conf.WgMeshConfiguration) *lib.Timer {
+	return lib.NewTimer(pruneFunction(m), conf.PruneTime/2)
+}

pkg/mesh/route.go

@@ -2,24 +2,42 @@ package mesh
 
 import (
 	"github.com/tim-beatham/wgmesh/pkg/ip"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
 	logging "github.com/tim-beatham/wgmesh/pkg/log"
-	"github.com/tim-beatham/wgmesh/pkg/route"
 )
 
 type RouteManager interface {
 	UpdateRoutes() error
+	RemoveRoutes(meshId string) error
 }
 
 type RouteManagerImpl struct {
-	meshManager    *MeshManager
-	routeInstaller route.RouteInstaller
+	meshManager MeshManager
 }
 
 func (r *RouteManagerImpl) UpdateRoutes() error {
-	meshes := r.meshManager.Meshes
+	meshes := r.meshManager.GetMeshes()
 	ulaBuilder := new(ip.ULABuilder)
 
 	for _, mesh1 := range meshes {
+		self, err := r.meshManager.GetSelf(mesh1.GetMeshId())
+
+		if err != nil {
+			return err
+		}
+
+		pubKey, err := self.GetPublicKey()
+
+		if err != nil {
+			return err
+		}
+
+		routes, err := mesh1.GetRoutes(pubKey.String())
+
+		if err != nil {
+			return err
+		}
+
 		for _, mesh2 := range meshes {
 			if mesh1 == mesh2 {
 				continue
@@ -32,7 +50,11 @@ func (r *RouteManagerImpl) UpdateRoutes() error {
 				return err
 			}
 
-			err = mesh1.AddRoutes(r.meshManager.HostParameters.HostEndpoint, ipNet.String())
+			err = mesh2.AddRoutes(NodeID(self), append(lib.MapValues(routes), &RouteStub{
+				Destination: ipNet,
+				HopCount:    0,
+				Path:        make([]string, 0),
+			})...)
 
 			if err != nil {
 				return err
@@ -43,6 +65,29 @@ func (r *RouteManagerImpl) UpdateRoutes() error {
 	return nil
 }
 
-func NewRouteManager(m *MeshManager) RouteManager {
-	return &RouteManagerImpl{meshManager: m, routeInstaller: route.NewRouteInstaller()}
+// removeRoutes: removes all meshes we are no longer a part of
+func (r *RouteManagerImpl) RemoveRoutes(meshId string) error {
+	ulaBuilder := new(ip.ULABuilder)
+	meshes := r.meshManager.GetMeshes()
+
+	ipNet, err := ulaBuilder.GetIPNet(meshId)
+
+	if err != nil {
+		return err
+	}
+
+	for _, mesh1 := range meshes {
+		self, err := r.meshManager.GetSelf(meshId)
+
+		if err != nil {
+			return err
+		}
+
+		mesh1.RemoveRoutes(NodeID(self), ipNet.String())
+	}
+	return nil
+}
+
+func NewRouteManager(m MeshManager) RouteManager {
+	return &RouteManagerImpl{meshManager: m}
 }

pkg/mesh/route_stub.go

@@ -0,0 +1,16 @@
+package mesh
+
+type RouteManagerStub struct {
+}
+
+func (r *RouteManagerStub) UpdateRoutes() error {
+	return nil
+}
+
+func (r *RouteManagerStub) InstallRoutes() error {
+	return nil
+}
+
+func (r *RouteManagerStub) RemoveRoutes(meshId string) error {
+	return nil
+}

pkg/mesh/stub_types.go

@@ -0,0 +1,335 @@
+package mesh
+
+import (
+	"fmt"
+	"net"
+	"time"
+
+	"github.com/tim-beatham/wgmesh/pkg/conf"
+	"golang.zx2c4.com/wireguard/wgctrl"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+)
+
+type MeshNodeStub struct {
+	hostEndpoint string
+	publicKey    wgtypes.Key
+	wgEndpoint   string
+	wgHost       *net.IPNet
+	timeStamp    int64
+	routes       []Route
+	identifier   string
+	description  string
+}
+
+// GetType implements MeshNode.
+func (*MeshNodeStub) GetType() conf.NodeType {
+	return conf.PEER_ROLE
+}
+
+// GetServices implements MeshNode.
+func (*MeshNodeStub) GetServices() map[string]string {
+	return make(map[string]string)
+}
+
+// GetAlias implements MeshNode.
+func (*MeshNodeStub) GetAlias() string {
+	return ""
+}
+
+func (m *MeshNodeStub) GetHostEndpoint() string {
+	return m.hostEndpoint
+}
+
+func (m *MeshNodeStub) GetPublicKey() (wgtypes.Key, error) {
+	return m.publicKey, nil
+}
+
+func (m *MeshNodeStub) GetWgEndpoint() string {
+	return m.wgEndpoint
+}
+
+func (m *MeshNodeStub) GetWgHost() *net.IPNet {
+	return m.wgHost
+}
+
+func (m *MeshNodeStub) GetTimeStamp() int64 {
+	return m.timeStamp
+}
+
+func (m *MeshNodeStub) GetRoutes() []Route {
+	return m.routes
+}
+
+func (m *MeshNodeStub) GetIdentifier() string {
+	return m.identifier
+}
+
+func (m *MeshNodeStub) GetDescription() string {
+	return m.description
+}
+
+type MeshSnapshotStub struct {
+	nodes map[string]MeshNode
+}
+
+func (s *MeshSnapshotStub) GetNodes() map[string]MeshNode {
+	return s.nodes
+}
+
+type MeshProviderStub struct {
+	meshId   string
+	snapshot *MeshSnapshotStub
+}
+
+// Mark implements MeshProvider.
+func (*MeshProviderStub) Mark(nodeId string) {
+	panic("unimplemented")
+}
+
+// RemoveNode implements MeshProvider.
+func (*MeshProviderStub) RemoveNode(nodeId string) error {
+	panic("unimplemented")
+}
+
+func (*MeshProviderStub) GetRoutes(targetId string) (map[string]Route, error) {
+	return nil, nil
+}
+
+// GetNodeIds implements MeshProvider.
+func (*MeshProviderStub) GetPeers() []string {
+	return make([]string, 0)
+}
+
+// GetNode implements MeshProvider.
+func (*MeshProviderStub) GetNode(string) (MeshNode, error) {
+	return nil, nil
+}
+
+// NodeExists implements MeshProvider.
+func (*MeshProviderStub) NodeExists(string) bool {
+	return false
+}
+
+// AddService implements MeshProvider.
+func (*MeshProviderStub) AddService(nodeId string, key string, value string) error {
+	return nil
+}
+
+// RemoveService implements MeshProvider.
+func (*MeshProviderStub) RemoveService(nodeId string, key string) error {
+	return nil
+}
+
+// SetAlias implements MeshProvider.
+func (*MeshProviderStub) SetAlias(nodeId string, alias string) error {
+	return nil
+}
+
+// RemoveRoutes implements MeshProvider.
+func (*MeshProviderStub) RemoveRoutes(nodeId string, route ...string) error {
+	return nil
+}
+
+// Prune implements MeshProvider.
+func (*MeshProviderStub) Prune() error {
+	return nil
+}
+
+// UpdateTimeStamp implements MeshProvider.
+func (*MeshProviderStub) UpdateTimeStamp(nodeId string) error {
+	return nil
+}
+
+func (s *MeshProviderStub) AddNode(node MeshNode) {
+	s.snapshot.nodes[node.GetHostEndpoint()] = node
+}
+
+func (s *MeshProviderStub) GetMesh() (MeshSnapshot, error) {
+	return s.snapshot, nil
+}
+
+func (s *MeshProviderStub) GetMeshId() string {
+	return s.meshId
+}
+
+func (s *MeshProviderStub) Save() []byte {
+	return make([]byte, 0)
+}
+
+func (s *MeshProviderStub) Load(bytes []byte) error {
+	return nil
+}
+
+func (s *MeshProviderStub) GetDevice() (*wgtypes.Device, error) {
+	pubKey, _ := wgtypes.GenerateKey()
+	return &wgtypes.Device{
+		PublicKey: pubKey,
+	}, nil
+}
+
+func (s *MeshProviderStub) SaveChanges() {}
+
+func (s *MeshProviderStub) HasChanges() bool {
+	return false
+}
+
+func (s *MeshProviderStub) AddRoutes(nodeId string, route ...Route) error {
+	return nil
+}
+
+func (s *MeshProviderStub) GetSyncer() MeshSyncer {
+	return nil
+}
+
+func (s *MeshProviderStub) SetDescription(nodeId string, description string) error {
+	return nil
+}
+
+type StubMeshProviderFactory struct{}
+
+func (s *StubMeshProviderFactory) CreateMesh(params *MeshProviderFactoryParams) (MeshProvider, error) {
+	return &MeshProviderStub{
+		meshId:   params.MeshId,
+		snapshot: &MeshSnapshotStub{nodes: make(map[string]MeshNode)},
+	}, nil
+}
+
+type StubNodeFactory struct {
+	Config *conf.WgMeshConfiguration
+}
+
+func (s *StubNodeFactory) Build(params *MeshNodeFactoryParams) MeshNode {
+	_, wgHost, _ := net.ParseCIDR(fmt.Sprintf("%s/128", params.NodeIP.String()))
+
+	return &MeshNodeStub{
+		hostEndpoint: params.Endpoint,
+		publicKey:    *params.PublicKey,
+		wgEndpoint:   fmt.Sprintf("%s:%s", params.Endpoint, s.Config.GrpcPort),
+		wgHost:       wgHost,
+		timeStamp:    time.Now().Unix(),
+		routes:       make([]Route, 0),
+		identifier:   "abc",
+		description:  "A Mesh Node Stub",
+	}
+}
+
+type MeshConfigApplyerStub struct{}
+
+func (a *MeshConfigApplyerStub) ApplyConfig() error {
+	return nil
+}
+
+func (a *MeshConfigApplyerStub) RemovePeers(meshId string) error {
+	return nil
+}
+
+func (a *MeshConfigApplyerStub) SetMeshManager(manager MeshManager) {
+}
+
+type MeshManagerStub struct {
+	meshes map[string]MeshProvider
+}
+
+// GetRouteManager implements MeshManager.
+func (*MeshManagerStub) GetRouteManager() RouteManager {
+	panic("unimplemented")
+}
+
+// GetNode implements MeshManager.
+func (*MeshManagerStub) GetNode(string, string) MeshNode {
+	panic("unimplemented")
+}
+
+// RemoveService implements MeshManager.
+func (*MeshManagerStub) RemoveService(service string) error {
+	panic("unimplemented")
+}
+
+// SetService implements MeshManager.
+func (*MeshManagerStub) SetService(service string, value string) error {
+	panic("unimplemented")
+}
+
+// GetMonitor implements MeshManager.
+func (*MeshManagerStub) GetMonitor() MeshMonitor {
+	panic("unimplemented")
+}
+
+// SetAlias implements MeshManager.
+func (*MeshManagerStub) SetAlias(alias string) error {
+	panic("unimplemented")
+}
+
+// Close implements MeshManager.
+func (*MeshManagerStub) Close() error {
+	panic("unimplemented")
+}
+
+// Prune implements MeshManager.
+func (*MeshManagerStub) Prune() error {
+	return nil
+}
+
+func NewMeshManagerStub() MeshManager {
+	return &MeshManagerStub{meshes: make(map[string]MeshProvider)}
+}
+
+func (m *MeshManagerStub) CreateMesh(port int) (string, error) {
+	return "tim123", nil
+}
+
+func (m *MeshManagerStub) AddMesh(params *AddMeshParams) error {
+	m.meshes[params.MeshId] = &MeshProviderStub{
+		params.MeshId,
+		&MeshSnapshotStub{nodes: make(map[string]MeshNode)},
+	}
+
+	return nil
+}
+
+func (m *MeshManagerStub) HasChanges(meshId string) bool {
+	return false
+}
+
+func (m *MeshManagerStub) GetMesh(meshId string) MeshProvider {
+	return &MeshProviderStub{
+		meshId:   meshId,
+		snapshot: &MeshSnapshotStub{nodes: make(map[string]MeshNode)}}
+}
+
+func (m *MeshManagerStub) GetPublicKey() *wgtypes.Key {
+	key, _ := wgtypes.GenerateKey()
+	return &key
+}
+
+func (m *MeshManagerStub) AddSelf(params *AddSelfParams) error {
+	return nil
+}
+
+func (m *MeshManagerStub) GetSelf(meshId string) (MeshNode, error) {
+	return nil, nil
+}
+
+func (m *MeshManagerStub) ApplyConfig() error {
+	return nil
+}
+
+func (m *MeshManagerStub) SetDescription(description string) error {
+	return nil
+}
+
+func (m *MeshManagerStub) UpdateTimeStamp() error {
+	return nil
+}
+
+func (m *MeshManagerStub) GetClient() *wgctrl.Client {
+	return nil
+}
+
+func (m *MeshManagerStub) GetMeshes() map[string]MeshProvider {
+	return m.meshes
+}
+
+func (m *MeshManagerStub) LeaveMesh(meshId string) error {
+	return nil
+}

pkg/mesh/types.go

@@ -10,6 +10,33 @@ import (
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 )
 
+type Route interface {
+	// GetDestination: returns the destination of the route
+	GetDestination() *net.IPNet
+	// GetHopCount: get the total hopcount of the prefix
+	GetHopCount() int
+	// GetPath: get a list of AS paths to get to the destination
+	GetPath() []string
+}
+
+type RouteStub struct {
+	Destination *net.IPNet
+	HopCount    int
+	Path        []string
+}
+
+func (r *RouteStub) GetDestination() *net.IPNet {
+	return r.Destination
+}
+
+func (r *RouteStub) GetHopCount() int {
+	return r.HopCount
+}
+
+func (r *RouteStub) GetPath() []string {
+	return r.Path
+}
+
 // MeshNode represents an implementation of a node in a mesh
 type MeshNode interface {
 	// GetHostEndpoint: gets the gRPC endpoint of the node
@@ -23,11 +50,35 @@ type MeshNode interface {
 	// GetTimestamp: get the UNIX time stamp of the ndoe
 	GetTimeStamp() int64
 	// GetRoutes: returns the routes that the nodes provides
-	GetRoutes() []string
+	GetRoutes() []Route
 	// GetIdentifier: returns the identifier of the node
 	GetIdentifier() string
 	// GetDescription: returns the description for this node
 	GetDescription() string
+	// GetAlias: associates the node with an alias. Potentially used
+	// for DNS and so forth.
+	GetAlias() string
+	// GetServices: returns a list of services offered by the node
+	GetServices() map[string]string
+	GetType() conf.NodeType
+}
+
+// NodeEquals: determines if two mesh nodes are equivalent to one another
+func NodeEquals(node1, node2 MeshNode) bool {
+	key1, _ := node1.GetPublicKey()
+	key2, _ := node2.GetPublicKey()
+
+	return key1.String() == key2.String()
+}
+
+func RouteEquals(route1, route2 Route) bool {
+	return route1.GetDestination().String() == route2.GetDestination().String() &&
+		route1.GetHopCount() == route2.GetHopCount()
+}
+
+func NodeID(node MeshNode) string {
+	key, _ := node.GetPublicKey()
+	return key.String()
 }
 
 type MeshSnapshot interface {
@@ -46,7 +97,7 @@ type MeshSyncer interface {
 type MeshProvider interface {
 	// AddNode() adds a node to the mesh
 	AddNode(node MeshNode)
-	// GetMesh() returns a snapshot of the mesh provided by the mesh provider
+	// GetMesh() returns a snapshot of the mesh provided by the mesh provider.
 	GetMesh() (MeshSnapshot, error)
 	// GetMeshId() returns the ID of the mesh network
 	GetMeshId() string
@@ -58,20 +109,50 @@ type MeshProvider interface {
 	GetDevice() (*wgtypes.Device, error)
 	// HasChanges returns true if we have changes since last time we synced
 	HasChanges() bool
-	// Record that we have changges and save the corresponding changes
+	// Record that we have changes and save the corresponding changes
 	SaveChanges()
 	// UpdateTimeStamp: update the timestamp of the given node
 	UpdateTimeStamp(nodeId string) error
 	// AddRoutes: adds routes to the given node
-	AddRoutes(nodeId string, route ...string) error
+	AddRoutes(nodeId string, route ...Route) error
+	// DeleteRoutes: deletes the routes from the node
+	RemoveRoutes(nodeId string, route ...string) error
+	// GetSyncer: returns the automerge syncer for sync
 	GetSyncer() MeshSyncer
+	// GetNode get a particular not within the mesh
+	GetNode(string) (MeshNode, error)
+	// NodeExists: returns true if a particular node exists false otherwise
+	NodeExists(string) bool
+	// SetDescription: sets the description of this automerge data type
 	SetDescription(nodeId string, description string) error
+	// SetAlias: set the alias of the nodeId
+	SetAlias(nodeId string, alias string) error
+	// AddService: adds the service to the given node
+	AddService(nodeId, key, value string) error
+	// RemoveService: removes the service form the node. throws an error if the service does not exist
+	RemoveService(nodeId, key string) error
+	// Prune: prunes all nodes that have not updated their
+	// vector clock
+	Prune() error
+	// GetPeers: get a list of contactable peers
+	GetPeers() []string
+	// GetRoutes(): Get all unique routes. Where the route with the least hop count is chosen
+	GetRoutes(targetNode string) (map[string]Route, error)
+	// RemoveNode(): remove the node from the mesh
+	RemoveNode(nodeId string) error
+	// Mark: marks the node as unreachable. This is not broadcast to the entire
+	// this is not considered when syncing node state
+	Mark(nodeId string)
 }
 
 // HostParameters contains the IDs of a node
 type HostParameters struct {
-	HostEndpoint string
-	// TODO: Contain the WireGungracefullyuard identifier in this
+	PrivateKey *wgtypes.Key
+}
+
+// GetPublicKey: gets the public key of the node
+func (h *HostParameters) GetPublicKey() string {
+	return h.PrivateKey.PublicKey().String()
 }
 
 // MeshProviderFactoryParams parameters required to build a mesh provider
@@ -81,6 +162,7 @@ type MeshProviderFactoryParams struct {
 	Port    int
 	Conf    *conf.WgMeshConfiguration
 	Client  *wgctrl.Client
+	NodeID  string
 }
 
 // MeshProviderFactory creates an instance of a mesh provider
@@ -91,7 +173,7 @@ type MeshProviderFactory interface {
 // MeshNodeFactoryParams are the parameters required to construct
 // a mesh node
 type MeshNodeFactoryParams struct {
-	PublicKey *wgtypes.Key
+PublicKey *wgtypes.Key
 	NodeIP    net.IP
 	WgPort    int
 	Endpoint  string

pkg/middleware/auth.go

@@ -1,29 +0,0 @@
-package middleware
-
-import (
-	"context"
-	"errors"
-
-	logging "github.com/tim-beatham/wgmesh/pkg/log"
-	"github.com/tim-beatham/wgmesh/pkg/rpc"
-)
-
-// AuthRpcProvider implements the AuthRpcProvider service
-type AuthRpcProvider struct {
-	rpc.UnimplementedAuthenticationServer
-}
-
-// JoinMesh handles a JoinMeshRequest. Succeeds by stating the node managed to join the mesh
-// or returns an error if it failed
-func (a *AuthRpcProvider) JoinMesh(ctx context.Context, in *rpc.JoinAuthMeshRequest) (*rpc.JoinAuthMeshReply, error) {
-	meshId := in.MeshId
-
-	if meshId == "" {
-		return nil, errors.New("Must specify the meshId")
-	}
-
-	logging.Log.WriteInfof("MeshID: " + in.MeshId)
-
-	var token string = ""
-	return &rpc.JoinAuthMeshReply{Success: true, Token: &token}, nil
-}

pkg/query/query.go

@@ -3,8 +3,10 @@ package query
 import (
 	"encoding/json"
 	"fmt"
+	"strings"
 
 	"github.com/jmespath/go-jmespath"
+	"github.com/tim-beatham/wgmesh/pkg/conf"
 	"github.com/tim-beatham/wgmesh/pkg/lib"
 	"github.com/tim-beatham/wgmesh/pkg/mesh"
 )
@@ -16,21 +18,30 @@ type Querier interface {
 }
 
 type JmesQuerier struct {
-	manager *mesh.MeshManager
+	manager mesh.MeshManager
 }
 
 type QueryError struct {
 	msg string
 }
 
+type QueryRoute struct {
+	Destination string `json:"destination"`
+	HopCount    int    `json:"hopCount"`
+	Path        string `json:"path"`
+}
+
 type QueryNode struct {
-	HostEndpoint string   `json:"hostEndpoint"`
-	PublicKey    string   `json:"publicKey"`
-	WgEndpoint   string   `json:"wgEndpoint"`
-	WgHost       string   `json:"wgHost"`
-	Timestamp    int64    `json:"timestmap"`
-	Description  string   `json:"description"`
-	Routes       []string `json:"routes"`
+	HostEndpoint string            `json:"hostEndpoint"`
+	PublicKey    string            `json:"publicKey"`
+	WgEndpoint   string            `json:"wgEndpoint"`
+	WgHost       string            `json:"wgHost"`
+	Timestamp    int64             `json:"timestamp"`
+	Description  string            `json:"description"`
+	Routes       []QueryRoute      `json:"routes"`
+	Alias        string            `json:"alias"`
+	Services     map[string]string `json:"services"`
+	Type         conf.NodeType     `json:"type"`
 }
 
 func (m *QueryError) Error() string {
@@ -39,7 +50,7 @@ func (m *QueryError) Error() string {
 
 // Query: queries the data
 func (j *JmesQuerier) Query(meshId, queryParams string) ([]byte, error) {
-	mesh, ok := j.manager.Meshes[meshId]
+	mesh, ok := j.manager.GetMeshes()[meshId]
 
 	if !ok {
 		return nil, &QueryError{msg: fmt.Sprintf("%s does not exist", meshId)}
@@ -51,7 +62,7 @@ func (j *JmesQuerier) Query(meshId, queryParams string) ([]byte, error) {
 		return nil, err
 	}
 
-	nodes := lib.Map(lib.MapValues(snapshot.GetNodes()), meshNodeToQueryNode)
+	nodes := lib.Map(lib.MapValues(snapshot.GetNodes()), MeshNodeToQueryNode)
 
 	result, err := jmespath.Search(queryParams, nodes)
 
@@ -63,7 +74,7 @@ func (j *JmesQuerier) Query(meshId, queryParams string) ([]byte, error) {
 	return bytes, err
 }
 
-func meshNodeToQueryNode(node mesh.MeshNode) *QueryNode {
+func MeshNodeToQueryNode(node mesh.MeshNode) *QueryNode {
 	queryNode := new(QueryNode)
 	queryNode.HostEndpoint = node.GetHostEndpoint()
 	pubKey, _ := node.GetPublicKey()
@@ -74,11 +85,21 @@ func meshNodeToQueryNode(node mesh.MeshNode) *QueryNode {
 	queryNode.WgHost = node.GetWgHost().String()
 
 	queryNode.Timestamp = node.GetTimeStamp()
-	queryNode.Routes = node.GetRoutes()
+	queryNode.Routes = lib.Map(node.GetRoutes(), func(r mesh.Route) QueryRoute {
+		return QueryRoute{
+			Destination: r.GetDestination().String(),
+			HopCount:    r.GetHopCount(),
+			Path:        strings.Join(r.GetPath(), ","),
+		}
+	})
 	queryNode.Description = node.GetDescription()
+	queryNode.Alias = node.GetAlias()
+	queryNode.Services = node.GetServices()
+	queryNode.Type = node.GetType()
+
 	return queryNode
 }
 
-func NewJmesQuerier(manager *mesh.MeshManager) Querier {
+func NewJmesQuerier(manager mesh.MeshManager) Querier {
 	return &JmesQuerier{manager: manager}
 }

pkg/robin/requester.go

@@ -2,45 +2,50 @@ package robin
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"strconv"
 	"time"
 
 	"github.com/tim-beatham/wgmesh/pkg/ctrlserver"
-	"github.com/tim-beatham/wgmesh/pkg/ip"
 	"github.com/tim-beatham/wgmesh/pkg/ipc"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
 	"github.com/tim-beatham/wgmesh/pkg/mesh"
+	"github.com/tim-beatham/wgmesh/pkg/query"
 	"github.com/tim-beatham/wgmesh/pkg/rpc"
 )
 
 type IpcHandler struct {
-	Server      *ctrlserver.MeshCtrlServer
-	ipAllocator ip.IPAllocator
+	Server ctrlserver.CtrlServer
 }
 
 func (n *IpcHandler) CreateMesh(args *ipc.NewMeshArgs, reply *string) error {
-	meshId, err := n.Server.MeshManager.CreateMesh(args.IfName, args.WgPort)
+	meshId, err := n.Server.GetMeshManager().CreateMesh(args.WgPort)
 
 	if err != nil {
 		return err
 	}
 
-	err = n.Server.MeshManager.AddSelf(&mesh.AddSelfParams{
+	err = n.Server.GetMeshManager().AddSelf(&mesh.AddSelfParams{
 		MeshId:   meshId,
 		WgPort:   args.WgPort,
 		Endpoint: args.Endpoint,
 	})
 
+	if err != nil {
+		return err
+	}
+
 	*reply = meshId
 	return err
 }
 
 func (n *IpcHandler) ListMeshes(_ string, reply *ipc.ListMeshReply) error {
-	meshNames := make([]string, len(n.Server.MeshManager.Meshes))
+	meshNames := make([]string, len(n.Server.GetMeshManager().GetMeshes()))
 
 	i := 0
-	for meshId, _ := range n.Server.MeshManager.Meshes {
+	for meshId, _ := range n.Server.GetMeshManager().GetMeshes() {
 		meshNames[i] = meshId
 		i++
 	}
@@ -50,7 +55,7 @@ func (n *IpcHandler) ListMeshes(_ string, reply *ipc.ListMeshReply) error {
 }
 
 func (n *IpcHandler) JoinMesh(args ipc.JoinMeshArgs, reply *string) error {
-	peerConnection, err := n.Server.ConnectionManager.GetConnection(args.IpAdress)
+	peerConnection, err := n.Server.GetConnectionManager().GetConnection(args.IpAdress)
 
 	if err != nil {
 		return err
@@ -68,7 +73,9 @@ func (n *IpcHandler) JoinMesh(args ipc.JoinMeshArgs, reply *string) error {
 		return err
 	}
 
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	configuration := n.Server.GetConfiguration()
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*time.Duration(configuration.Timeout))
 	defer cancel()
 
 	meshReply, err := c.GetMesh(ctx, &rpc.GetMeshRequest{MeshId: args.MeshId})
@@ -77,9 +84,8 @@ func (n *IpcHandler) JoinMesh(args ipc.JoinMeshArgs, reply *string) error {
 		return err
 	}
 
-	err = n.Server.MeshManager.AddMesh(&mesh.AddMeshParams{
+	err = n.Server.GetMeshManager().AddMesh(&mesh.AddMeshParams{
 		MeshId:    args.MeshId,
-		DevName:   args.IfName,
 		WgPort:    args.Port,
 		MeshBytes: meshReply.Mesh,
 	})
@@ -88,7 +94,7 @@ func (n *IpcHandler) JoinMesh(args ipc.JoinMeshArgs, reply *string) error {
 		return err
 	}
 
-	err = n.Server.MeshManager.AddSelf(&mesh.AddSelfParams{
+	err = n.Server.GetMeshManager().AddSelf(&mesh.AddSelfParams{
 		MeshId:   args.MeshId,
 		WgPort:   args.Port,
 		Endpoint: args.Endpoint,
@@ -104,7 +110,7 @@ func (n *IpcHandler) JoinMesh(args ipc.JoinMeshArgs, reply *string) error {
 
 // LeaveMesh leaves a mesh network
 func (n *IpcHandler) LeaveMesh(meshId string, reply *string) error {
-	err := n.Server.MeshManager.LeaveMesh(meshId)
+	err := n.Server.GetMeshManager().LeaveMesh(meshId)
 
 	if err == nil {
 		*reply = fmt.Sprintf("Left Mesh %s", meshId)
@@ -114,16 +120,22 @@ func (n *IpcHandler) LeaveMesh(meshId string, reply *string) error {
 }
 
 func (n *IpcHandler) GetMesh(meshId string, reply *ipc.GetMeshReply) error {
-	mesh := n.Server.MeshManager.GetMesh(meshId)
-	meshSnapshot, err := mesh.GetMesh()
+	theMesh := n.Server.GetMeshManager().GetMesh(meshId)
+
+	if theMesh == nil {
+		return fmt.Errorf("mesh %s does not exist", meshId)
+	}
+
+	meshSnapshot, err := theMesh.GetMesh()
 
 	if err != nil {
 		return err
 	}
 
-	if mesh == nil {
+	if theMesh == nil {
 		return errors.New("mesh does not exist")
 	}
+
 	nodes := make([]ctrlserver.MeshNode, len(meshSnapshot.GetNodes()))
 
 	i := 0
@@ -140,7 +152,15 @@ func (n *IpcHandler) GetMesh(meshId string, reply *ipc.GetMeshReply) error {
 			PublicKey:    pubKey.String(),
 			WgHost:       node.GetWgHost().String(),
 			Timestamp:    node.GetTimeStamp(),
-			Routes:       node.GetRoutes(),
+			Routes: lib.Map(node.GetRoutes(), func(r mesh.Route) ctrlserver.MeshRoute {
+				return ctrlserver.MeshRoute{
+					Destination: r.GetDestination().String(),
+					Path:        r.GetPath(),
+				}
+			}),
+			Description: node.GetDescription(),
+			Alias:       node.GetAlias(),
+			Services:    node.GetServices(),
 		}
 
 		nodes[i] = node
@@ -151,20 +171,8 @@ func (n *IpcHandler) GetMesh(meshId string, reply *ipc.GetMeshReply) error {
 	return nil
 }
 
-func (n *IpcHandler) EnableInterface(meshId string, reply *string) error {
-	err := n.Server.MeshManager.EnableInterface(meshId)
-
-	if err != nil {
-		*reply = err.Error()
-		return err
-	}
-
-	*reply = "up"
-	return nil
-}
-
 func (n *IpcHandler) GetDOT(meshId string, reply *string) error {
-	g := mesh.NewMeshDotConverter(n.Server.MeshManager)
+	g := mesh.NewMeshDotConverter(n.Server.GetMeshManager())
 
 	result, err := g.Generate(meshId)
 
@@ -177,7 +185,7 @@ func (n *IpcHandler) GetDOT(meshId string, reply *string) error {
 }
 
 func (n *IpcHandler) Query(params ipc.QueryMesh, reply *string) error {
-	queryResponse, err := n.Server.Querier.Query(params.MeshId, params.Query)
+	queryResponse, err := n.Server.GetQuerier().Query(params.MeshId, params.Query)
 
 	if err != nil {
 		return err
@@ -188,7 +196,7 @@ func (n *IpcHandler) Query(params ipc.QueryMesh, reply *string) error {
 }
 
 func (n *IpcHandler) PutDescription(description string, reply *string) error {
-	err := n.Server.MeshManager.SetDescription(description)
+	err := n.Server.GetMeshManager().SetDescription(description)
 
 	if err != nil {
 		return err
@@ -198,8 +206,62 @@ func (n *IpcHandler) PutDescription(description string, reply *string) error {
 	return nil
 }
 
+func (n *IpcHandler) PutAlias(alias string, reply *string) error {
+	err := n.Server.GetMeshManager().SetAlias(alias)
+
+	if err != nil {
+		return err
+	}
+
+	*reply = fmt.Sprintf("Set alias to %s", alias)
+	return nil
+}
+
+func (n *IpcHandler) PutService(service ipc.PutServiceArgs, reply *string) error {
+	err := n.Server.GetMeshManager().SetService(service.Service, service.Value)
+
+	if err != nil {
+		return err
+	}
+
+	*reply = "success"
+	return nil
+}
+
+func (n *IpcHandler) DeleteService(service string, reply *string) error {
+	err := n.Server.GetMeshManager().RemoveService(service)
+
+	if err != nil {
+		return err
+	}
+
+	*reply = "success"
+	return nil
+}
+
+func (n *IpcHandler) GetNode(args ipc.GetNodeArgs, reply *string) error {
+	node := n.Server.GetMeshManager().GetNode(args.MeshId, args.NodeId)
+
+	if node == nil {
+		*reply = "nil"
+		return nil
+	}
+
+	queryNode := query.MeshNodeToQueryNode(node)
+
+	bytes, err := json.Marshal(queryNode)
+
+	if err != nil {
+		*reply = err.Error()
+		return nil
+	}
+
+	*reply = string(bytes)
+	return nil
+}
+
 type RobinIpcParams struct {
-	CtrlServer *ctrlserver.MeshCtrlServer
+	CtrlServer ctrlserver.CtrlServer
 }
 
 func NewRobinIpc(ipcParams RobinIpcParams) IpcHandler {

pkg/robin/requester_test.go

@@ -0,0 +1,73 @@
+package robin
+
+import (
+	"testing"
+
+	"github.com/tim-beatham/wgmesh/pkg/ctrlserver"
+	"github.com/tim-beatham/wgmesh/pkg/ipc"
+	"github.com/tim-beatham/wgmesh/pkg/mesh"
+)
+
+func getRequester() *IpcHandler {
+	return &IpcHandler{Server: ctrlserver.NewCtrlServerStub()}
+}
+
+func TestCreateMeshRepliesMeshId(t *testing.T) {
+	var reply string
+	requester := getRequester()
+
+	err := requester.CreateMesh(&ipc.NewMeshArgs{
+		IfName:   "wg0",
+		WgPort:   5000,
+		Endpoint: "abc.com",
+	}, &reply)
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if len(reply) == 0 {
+		t.Fatalf(`reply should have been returned`)
+	}
+}
+
+func TestListMeshesNoMeshesListsEmpty(t *testing.T) {
+	var reply ipc.ListMeshReply
+	requester := getRequester()
+
+	err := requester.ListMeshes("", &reply)
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if len(reply.Meshes) != 0 {
+		t.Fatalf(`meshes should be empty`)
+	}
+}
+
+func TestListMeshesMeshesNotEmpty(t *testing.T) {
+	var reply ipc.ListMeshReply
+	requester := getRequester()
+
+	requester.Server.GetMeshManager().AddMesh(&mesh.AddMeshParams{
+		MeshId:    "tim123",
+		DevName:   "wg0",
+		WgPort:    5000,
+		MeshBytes: make([]byte, 0),
+	})
+
+	err := requester.ListMeshes("", &reply)
+
+	if err != nil {
+		t.Error(err)
+	}
+
+	if len(reply.Meshes) != 1 {
+		t.Fatalf(`only only mesh exists`)
+	}
+
+	if reply.Meshes[0] != "tim123" {
+		t.Fatalf(`meshId was %s expected %s`, reply.Meshes[0], "tim123")
+	}
+}

pkg/robin/responder.go

@@ -13,29 +13,6 @@ type WgRpc struct {
 	Server *ctrlserver.MeshCtrlServer
 }
 
-func nodeToRpcNode(node ctrlserver.MeshNode) *rpc.MeshNode {
-	return &rpc.MeshNode{
-		PublicKey:  node.PublicKey,
-		WgEndpoint: node.WgEndpoint,
-		WgHost:     node.WgHost,
-		Endpoint:   node.HostEndpoint,
-	}
-}
-
-func nodesToRpcNodes(nodes map[string]ctrlserver.MeshNode) []*rpc.MeshNode {
-	n := len(nodes)
-	meshNodes := make([]*rpc.MeshNode, n)
-
-	var i int = 0
-
-	for _, v := range nodes {
-		meshNodes[i] = nodeToRpcNode(v)
-		i++
-	}
-
-	return meshNodes
-}
-
 func (m *WgRpc) GetMesh(ctx context.Context, request *rpc.GetMeshRequest) (*rpc.GetMeshReply, error) {
 	mesh := m.Server.MeshManager.GetMesh(request.MeshId)
 
@@ -51,7 +28,3 @@ func (m *WgRpc) GetMesh(ctx context.Context, request *rpc.GetMeshRequest) (*rpc.
 
 	return &reply, nil
 }
-
-func (m *WgRpc) JoinMesh(ctx context.Context, request *rpc.JoinMeshRequest) (*rpc.JoinMeshReply, error) {
-	return &rpc.JoinMeshReply{Success: true}, nil
-}

pkg/robin/responder_test.go

@@ -0,0 +1 @@
+package robin

pkg/route/route.go

@@ -1,22 +1,32 @@
 package route
 
 import (
-	"net"
-	"os/exec"
-
-	logging "github.com/tim-beatham/wgmesh/pkg/log"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+	"golang.org/x/sys/unix"
 )
 
 type RouteInstaller interface {
-	InstallRoutes(devName string, routes ...*net.IPNet) error
+	InstallRoutes(devName string, routes ...lib.Route) error
 }
 
 type RouteInstallerImpl struct{}
 
 // InstallRoutes: installs a route into the routing table
-func (r *RouteInstallerImpl) InstallRoutes(devName string, routes ...*net.IPNet) error {
+func (r *RouteInstallerImpl) InstallRoutes(devName string, routes ...lib.Route) error {
+	rtnl, err := lib.NewRtNetlinkConfig()
+
+	if err != nil {
+		return err
+	}
+
+	err = rtnl.DeleteRoutes(devName, unix.AF_INET6, routes...)
+
+	if err != nil {
+		return err
+	}
+
 	for _, route := range routes {
-		err := r.installRoute(devName, route)
+		err := rtnl.AddRoute(devName, route)
 
 		if err != nil {
 			return err
@@ -26,22 +36,6 @@ func (r *RouteInstallerImpl) InstallRoutes(devName string, routes ...*net.IPNet)
 	return nil
 }
 
-// installRoute: installs a route into the linux table
-func (r *RouteInstallerImpl) installRoute(devName string, route *net.IPNet) error {
-	// TODO: Find a library that automates this
-	cmd := exec.Command("/usr/bin/ip", "-6", "route", "add", route.String(), "dev", devName)
-
-	logging.Log.WriteInfof("%s %s", route.String(), devName)
-
-	if msg, err := cmd.CombinedOutput(); err != nil {
-		logging.Log.WriteErrorf(err.Error())
-		logging.Log.WriteErrorf(string(msg))
-		return err
-	}
-
-	return nil
-}
-
 func NewRouteInstaller() RouteInstaller {
 	return &RouteInstallerImpl{}
 }

pkg/rpc/ctrlserver.pb.go

@@ -20,77 +20,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type MeshNode struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	PublicKey  string `protobuf:"bytes,1,opt,name=publicKey,proto3" json:"publicKey,omitempty"`
-	WgEndpoint string `protobuf:"bytes,2,opt,name=wgEndpoint,proto3" json:"wgEndpoint,omitempty"`
-	Endpoint   string `protobuf:"bytes,3,opt,name=endpoint,proto3" json:"endpoint,omitempty"`
-	WgHost     string `protobuf:"bytes,4,opt,name=wgHost,proto3" json:"wgHost,omitempty"`
-}
-
-func (x *MeshNode) Reset() {
-	*x = MeshNode{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *MeshNode) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*MeshNode) ProtoMessage() {}
-
-func (x *MeshNode) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use MeshNode.ProtoReflect.Descriptor instead.
-func (*MeshNode) Descriptor() ([]byte, []int) {
-	return file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *MeshNode) GetPublicKey() string {
-	if x != nil {
-		return x.PublicKey
-	}
-	return ""
-}
-
-func (x *MeshNode) GetWgEndpoint() string {
-	if x != nil {
-		return x.WgEndpoint
-	}
-	return ""
-}
-
-func (x *MeshNode) GetEndpoint() string {
-	if x != nil {
-		return x.Endpoint
-	}
-	return ""
-}
-
-func (x *MeshNode) GetWgHost() string {
-	if x != nil {
-		return x.WgHost
-	}
-	return ""
-}
-
 type GetMeshRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -102,7 +31,7 @@ type GetMeshRequest struct {
 func (x *GetMeshRequest) Reset() {
 	*x = GetMeshRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[1]
+		mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -115,7 +44,7 @@ func (x *GetMeshRequest) String() string {
 func (*GetMeshRequest) ProtoMessage() {}
 
 func (x *GetMeshRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[1]
+	mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -128,7 +57,7 @@ func (x *GetMeshRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetMeshRequest.ProtoReflect.Descriptor instead.
 func (*GetMeshRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDescGZIP(), []int{1}
+	return file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *GetMeshRequest) GetMeshId() string {
@@ -149,7 +78,7 @@ type GetMeshReply struct {
 func (x *GetMeshReply) Reset() {
 	*x = GetMeshReply{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[2]
+		mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -162,7 +91,7 @@ func (x *GetMeshReply) String() string {
 func (*GetMeshReply) ProtoMessage() {}
 
 func (x *GetMeshReply) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[2]
+	mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -175,7 +104,7 @@ func (x *GetMeshReply) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetMeshReply.ProtoReflect.Descriptor instead.
 func (*GetMeshReply) Descriptor() ([]byte, []int) {
-	return file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDescGZIP(), []int{2}
+	return file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *GetMeshReply) GetMesh() []byte {
@@ -185,145 +114,24 @@ func (x *GetMeshReply) GetMesh() []byte {
 	return nil
 }
 
-type JoinMeshRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Changes []byte `protobuf:"bytes,1,opt,name=changes,proto3" json:"changes,omitempty"`
-	MeshId  string `protobuf:"bytes,2,opt,name=meshId,proto3" json:"meshId,omitempty"`
-}
-
-func (x *JoinMeshRequest) Reset() {
-	*x = JoinMeshRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[3]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *JoinMeshRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*JoinMeshRequest) ProtoMessage() {}
-
-func (x *JoinMeshRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[3]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use JoinMeshRequest.ProtoReflect.Descriptor instead.
-func (*JoinMeshRequest) Descriptor() ([]byte, []int) {
-	return file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDescGZIP(), []int{3}
-}
-
-func (x *JoinMeshRequest) GetChanges() []byte {
-	if x != nil {
-		return x.Changes
-	}
-	return nil
-}
-
-func (x *JoinMeshRequest) GetMeshId() string {
-	if x != nil {
-		return x.MeshId
-	}
-	return ""
-}
-
-type JoinMeshReply struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Success bool `protobuf:"varint,1,opt,name=success,proto3" json:"success,omitempty"`
-}
-
-func (x *JoinMeshReply) Reset() {
-	*x = JoinMeshReply{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[4]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *JoinMeshReply) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*JoinMeshReply) ProtoMessage() {}
-
-func (x *JoinMeshReply) ProtoReflect() protoreflect.Message {
-	mi := &file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[4]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use JoinMeshReply.ProtoReflect.Descriptor instead.
-func (*JoinMeshReply) Descriptor() ([]byte, []int) {
-	return file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDescGZIP(), []int{4}
-}
-
-func (x *JoinMeshReply) GetSuccess() bool {
-	if x != nil {
-		return x.Success
-	}
-	return false
-}
-
 var File_pkg_grpc_ctrlserver_ctrlserver_proto protoreflect.FileDescriptor
 
 var file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDesc = []byte{
 	0x0a, 0x24, 0x70, 0x6b, 0x67, 0x2f, 0x67, 0x72, 0x70, 0x63, 0x2f, 0x63, 0x74, 0x72, 0x6c, 0x73,
 	0x65, 0x72, 0x76, 0x65, 0x72, 0x2f, 0x63, 0x74, 0x72, 0x6c, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72,
 	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x08, 0x72, 0x70, 0x63, 0x74, 0x79, 0x70, 0x65, 0x73,
-	0x22, 0x7c, 0x0a, 0x08, 0x4d, 0x65, 0x73, 0x68, 0x4e, 0x6f, 0x64, 0x65, 0x12, 0x1c, 0x0a, 0x09,
-	0x70, 0x75, 0x62, 0x6c, 0x69, 0x63, 0x4b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
-	0x09, 0x70, 0x75, 0x62, 0x6c, 0x69, 0x63, 0x4b, 0x65, 0x79, 0x12, 0x1e, 0x0a, 0x0a, 0x77, 0x67,
-	0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a,
-	0x77, 0x67, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x12, 0x1a, 0x0a, 0x08, 0x65, 0x6e,
-	0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x65, 0x6e,
-	0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x12, 0x16, 0x0a, 0x06, 0x77, 0x67, 0x48, 0x6f, 0x73, 0x74,
-	0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x77, 0x67, 0x48, 0x6f, 0x73, 0x74, 0x22, 0x28,
-	0x0a, 0x0e, 0x47, 0x65, 0x74, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
-	0x12, 0x16, 0x0a, 0x06, 0x6d, 0x65, 0x73, 0x68, 0x49, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
-	0x52, 0x06, 0x6d, 0x65, 0x73, 0x68, 0x49, 0x64, 0x22, 0x22, 0x0a, 0x0c, 0x47, 0x65, 0x74, 0x4d,
-	0x65, 0x73, 0x68, 0x52, 0x65, 0x70, 0x6c, 0x79, 0x12, 0x12, 0x0a, 0x04, 0x6d, 0x65, 0x73, 0x68,
-	0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x04, 0x6d, 0x65, 0x73, 0x68, 0x22, 0x43, 0x0a, 0x0f,
-	0x4a, 0x6f, 0x69, 0x6e, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12,
-	0x18, 0x0a, 0x07, 0x63, 0x68, 0x61, 0x6e, 0x67, 0x65, 0x73, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c,
-	0x52, 0x07, 0x63, 0x68, 0x61, 0x6e, 0x67, 0x65, 0x73, 0x12, 0x16, 0x0a, 0x06, 0x6d, 0x65, 0x73,
-	0x68, 0x49, 0x64, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x6d, 0x65, 0x73, 0x68, 0x49,
-	0x64, 0x22, 0x29, 0x0a, 0x0d, 0x4a, 0x6f, 0x69, 0x6e, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65, 0x70,
-	0x6c, 0x79, 0x12, 0x18, 0x0a, 0x07, 0x73, 0x75, 0x63, 0x63, 0x65, 0x73, 0x73, 0x18, 0x01, 0x20,
-	0x01, 0x28, 0x08, 0x52, 0x07, 0x73, 0x75, 0x63, 0x63, 0x65, 0x73, 0x73, 0x32, 0x91, 0x01, 0x0a,
-	0x0e, 0x4d, 0x65, 0x73, 0x68, 0x43, 0x74, 0x72, 0x6c, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x12,
-	0x3d, 0x0a, 0x07, 0x47, 0x65, 0x74, 0x4d, 0x65, 0x73, 0x68, 0x12, 0x18, 0x2e, 0x72, 0x70, 0x63,
-	0x74, 0x79, 0x70, 0x65, 0x73, 0x2e, 0x47, 0x65, 0x74, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65, 0x71,
-	0x75, 0x65, 0x73, 0x74, 0x1a, 0x16, 0x2e, 0x72, 0x70, 0x63, 0x74, 0x79, 0x70, 0x65, 0x73, 0x2e,
-	0x47, 0x65, 0x74, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65, 0x70, 0x6c, 0x79, 0x22, 0x00, 0x12, 0x40,
-	0x0a, 0x08, 0x4a, 0x6f, 0x69, 0x6e, 0x4d, 0x65, 0x73, 0x68, 0x12, 0x19, 0x2e, 0x72, 0x70, 0x63,
-	0x74, 0x79, 0x70, 0x65, 0x73, 0x2e, 0x4a, 0x6f, 0x69, 0x6e, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65,
-	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x17, 0x2e, 0x72, 0x70, 0x63, 0x74, 0x79, 0x70, 0x65, 0x73,
-	0x2e, 0x4a, 0x6f, 0x69, 0x6e, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65, 0x70, 0x6c, 0x79, 0x22, 0x00,
-	0x42, 0x09, 0x5a, 0x07, 0x70, 0x6b, 0x67, 0x2f, 0x72, 0x70, 0x63, 0x62, 0x06, 0x70, 0x72, 0x6f,
-	0x74, 0x6f, 0x33,
+	0x22, 0x28, 0x0a, 0x0e, 0x47, 0x65, 0x74, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65, 0x71, 0x75, 0x65,
+	0x73, 0x74, 0x12, 0x16, 0x0a, 0x06, 0x6d, 0x65, 0x73, 0x68, 0x49, 0x64, 0x18, 0x01, 0x20, 0x01,
+	0x28, 0x09, 0x52, 0x06, 0x6d, 0x65, 0x73, 0x68, 0x49, 0x64, 0x22, 0x22, 0x0a, 0x0c, 0x47, 0x65,
+	0x74, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65, 0x70, 0x6c, 0x79, 0x12, 0x12, 0x0a, 0x04, 0x6d, 0x65,
+	0x73, 0x68, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x04, 0x6d, 0x65, 0x73, 0x68, 0x32, 0x4f,
+	0x0a, 0x0e, 0x4d, 0x65, 0x73, 0x68, 0x43, 0x74, 0x72, 0x6c, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72,
+	0x12, 0x3d, 0x0a, 0x07, 0x47, 0x65, 0x74, 0x4d, 0x65, 0x73, 0x68, 0x12, 0x18, 0x2e, 0x72, 0x70,
+	0x63, 0x74, 0x79, 0x70, 0x65, 0x73, 0x2e, 0x47, 0x65, 0x74, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x16, 0x2e, 0x72, 0x70, 0x63, 0x74, 0x79, 0x70, 0x65, 0x73,
+	0x2e, 0x47, 0x65, 0x74, 0x4d, 0x65, 0x73, 0x68, 0x52, 0x65, 0x70, 0x6c, 0x79, 0x22, 0x00, 0x42,
+	0x09, 0x5a, 0x07, 0x70, 0x6b, 0x67, 0x2f, 0x72, 0x70, 0x63, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x33,
 }
 
 var (
@@ -338,21 +146,16 @@ func file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDescGZIP() []byte {
 	return file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDescData
 }
 
-var file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
+var file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
 var file_pkg_grpc_ctrlserver_ctrlserver_proto_goTypes = []interface{}{
-	(*MeshNode)(nil),        // 0: rpctypes.MeshNode
-	(*GetMeshRequest)(nil),  // 1: rpctypes.GetMeshRequest
-	(*GetMeshReply)(nil),    // 2: rpctypes.GetMeshReply
-	(*JoinMeshRequest)(nil), // 3: rpctypes.JoinMeshRequest
-	(*JoinMeshReply)(nil),   // 4: rpctypes.JoinMeshReply
+	(*GetMeshRequest)(nil), // 0: rpctypes.GetMeshRequest
+	(*GetMeshReply)(nil),   // 1: rpctypes.GetMeshReply
 }
 var file_pkg_grpc_ctrlserver_ctrlserver_proto_depIdxs = []int32{
-	1, // 0: rpctypes.MeshCtrlServer.GetMesh:input_type -> rpctypes.GetMeshRequest
-	3, // 1: rpctypes.MeshCtrlServer.JoinMesh:input_type -> rpctypes.JoinMeshRequest
-	2, // 2: rpctypes.MeshCtrlServer.GetMesh:output_type -> rpctypes.GetMeshReply
-	4, // 3: rpctypes.MeshCtrlServer.JoinMesh:output_type -> rpctypes.JoinMeshReply
-	2, // [2:4] is the sub-list for method output_type
-	0, // [0:2] is the sub-list for method input_type
+	0, // 0: rpctypes.MeshCtrlServer.GetMesh:input_type -> rpctypes.GetMeshRequest
+	1, // 1: rpctypes.MeshCtrlServer.GetMesh:output_type -> rpctypes.GetMeshReply
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
 	0, // [0:0] is the sub-list for extension type_name
 	0, // [0:0] is the sub-list for extension extendee
 	0, // [0:0] is the sub-list for field type_name
@@ -365,18 +168,6 @@ func file_pkg_grpc_ctrlserver_ctrlserver_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*MeshNode); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetMeshRequest); i {
 			case 0:
 				return &v.state
@@ -388,7 +179,7 @@ func file_pkg_grpc_ctrlserver_ctrlserver_proto_init() {
 				return nil
 			}
 		}
-		file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+		file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetMeshReply); i {
 			case 0:
 				return &v.state
@@ -400,30 +191,6 @@ func file_pkg_grpc_ctrlserver_ctrlserver_proto_init() {
 				return nil
 			}
 		}
-		file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*JoinMeshRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_pkg_grpc_ctrlserver_ctrlserver_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*JoinMeshReply); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -431,7 +198,7 @@ func file_pkg_grpc_ctrlserver_ctrlserver_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_pkg_grpc_ctrlserver_ctrlserver_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   5,
+			NumMessages:   2,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

pkg/rpc/ctrlserver_grpc.pb.go

@@ -23,7 +23,6 @@ const _ = grpc.SupportPackageIsVersion7
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type MeshCtrlServerClient interface {
 	GetMesh(ctx context.Context, in *GetMeshRequest, opts ...grpc.CallOption) (*GetMeshReply, error)
-	JoinMesh(ctx context.Context, in *JoinMeshRequest, opts ...grpc.CallOption) (*JoinMeshReply, error)
 }
 
 type meshCtrlServerClient struct {
@@ -43,21 +42,11 @@ func (c *meshCtrlServerClient) GetMesh(ctx context.Context, in *GetMeshRequest,
 	return out, nil
 }
 
-func (c *meshCtrlServerClient) JoinMesh(ctx context.Context, in *JoinMeshRequest, opts ...grpc.CallOption) (*JoinMeshReply, error) {
-	out := new(JoinMeshReply)
-	err := c.cc.Invoke(ctx, "/rpctypes.MeshCtrlServer/JoinMesh", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 // MeshCtrlServerServer is the server API for MeshCtrlServer service.
 // All implementations must embed UnimplementedMeshCtrlServerServer
 // for forward compatibility
 type MeshCtrlServerServer interface {
 	GetMesh(context.Context, *GetMeshRequest) (*GetMeshReply, error)
-	JoinMesh(context.Context, *JoinMeshRequest) (*JoinMeshReply, error)
 	mustEmbedUnimplementedMeshCtrlServerServer()
 }
 
@@ -68,9 +57,6 @@ type UnimplementedMeshCtrlServerServer struct {
 func (UnimplementedMeshCtrlServerServer) GetMesh(context.Context, *GetMeshRequest) (*GetMeshReply, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetMesh not implemented")
 }
-func (UnimplementedMeshCtrlServerServer) JoinMesh(context.Context, *JoinMeshRequest) (*JoinMeshReply, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method JoinMesh not implemented")
-}
 func (UnimplementedMeshCtrlServerServer) mustEmbedUnimplementedMeshCtrlServerServer() {}
 
 // UnsafeMeshCtrlServerServer may be embedded to opt out of forward compatibility for this service.
@@ -102,24 +88,6 @@ func _MeshCtrlServer_GetMesh_Handler(srv interface{}, ctx context.Context, dec f
 	return interceptor(ctx, in, info, handler)
 }
 
-func _MeshCtrlServer_JoinMesh_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(JoinMeshRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(MeshCtrlServerServer).JoinMesh(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/rpctypes.MeshCtrlServer/JoinMesh",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(MeshCtrlServerServer).JoinMesh(ctx, req.(*JoinMeshRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 // MeshCtrlServer_ServiceDesc is the grpc.ServiceDesc for MeshCtrlServer service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -131,10 +99,6 @@ var MeshCtrlServer_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "GetMesh",
 			Handler:    _MeshCtrlServer_GetMesh_Handler,
 		},
-		{
-			MethodName: "JoinMesh",
-			Handler:    _MeshCtrlServer_JoinMesh_Handler,
-		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "pkg/grpc/ctrlserver/ctrlserver.proto",

pkg/sync/syncer.go

@@ -1,9 +1,8 @@
 package sync
 
 import (
-	"errors"
+	"io"
 	"math/rand"
-	"sync"
 	"time"
 
 	"github.com/tim-beatham/wgmesh/pkg/conf"
@@ -13,101 +12,114 @@ import (
 	"github.com/tim-beatham/wgmesh/pkg/mesh"
 )
 
-// Syncer: picks random nodes from the mesh
+// Syncer: picks random nodes from the meshs
 type Syncer interface {
 	Sync(meshId string) error
 	SyncMeshes() error
 }
 
 type SyncerImpl struct {
-	manager        *mesh.MeshManager
+	manager        mesh.MeshManager
 	requester      SyncRequester
 	infectionCount int
 	syncCount      int
 	cluster        conn.ConnCluster
 	conf           *conf.WgMeshConfiguration
+	lastSync       uint64
 }
 
 // Sync: Sync random nodes
 func (s *SyncerImpl) Sync(meshId string) error {
-	logging.Log.WriteInfof("UPDATING WG CONF")
-	s.manager.ApplyConfig()
-
-	if !s.manager.HasChanges(meshId) && s.infectionCount == 0 {
-		logging.Log.WriteInfof("No changes for %s", meshId)
-		return nil
-	}
-
-	theMesh := s.manager.GetMesh(meshId)
-
-	if theMesh == nil {
-		return errors.New("the provided mesh does not exist")
-	}
-
-	snapshot, err := theMesh.GetMesh()
+	self, err := s.manager.GetSelf(meshId)
 
 	if err != nil {
 		return err
 	}
 
-	nodes := snapshot.GetNodes()
+	s.manager.GetMesh(meshId).Prune()
 
-	if len(nodes) <= 1 {
+	if self.GetType() == conf.PEER_ROLE && !s.manager.HasChanges(meshId) && s.infectionCount == 0 {
+		logging.Log.WriteInfof("No changes for %s", meshId)
 		return nil
 	}
 
-	excludedNodes := map[string]struct{}{
-		s.manager.HostParameters.HostEndpoint: {},
-	}
-	meshNodes := lib.MapValuesWithExclude(nodes, excludedNodes)
-
-	getNames := func(node mesh.MeshNode) string {
-		return node.GetHostEndpoint()
-	}
-
-	nodeNames := lib.Map(meshNodes, getNames)
-
-	neighbours := s.cluster.GetNeighbours(nodeNames, s.manager.HostParameters.HostEndpoint)
-	randomSubset := lib.RandomSubsetOfLength(neighbours, s.conf.BranchRate)
-
-	for _, node := range randomSubset {
-		logging.Log.WriteInfof("Random node: %s", node)
-	}
-
 	before := time.Now()
+	s.manager.GetRouteManager().UpdateRoutes()
 
-	if len(meshNodes) > s.conf.ClusterSize && rand.Float64() < s.conf.InterClusterChance {
-		logging.Log.WriteInfof("Sending to random cluster")
-		interCluster := s.cluster.GetInterCluster(nodeNames, s.manager.HostParameters.HostEndpoint)
-		randomSubset = append(randomSubset, interCluster)
+	publicKey := s.manager.GetPublicKey()
+
+	logging.Log.WriteInfof(publicKey.String())
+
+	nodeNames := s.manager.GetMesh(meshId).GetPeers()
+
+	var gossipNodes []string
+
+	// Clients always pings its peer for configuration
+	if self.GetType() == conf.CLIENT_ROLE {
+		keyFunc := lib.HashString
+		bucketFunc := lib.HashString
+
+		neighbour := lib.ConsistentHash(nodeNames, publicKey.String(), keyFunc, bucketFunc)
+		gossipNodes = make([]string, 1)
+		gossipNodes[0] = neighbour
+	} else {
+		neighbours := s.cluster.GetNeighbours(nodeNames, publicKey.String())
+		gossipNodes = lib.RandomSubsetOfLength(neighbours, s.conf.BranchRate)
+
+		if len(nodeNames) > s.conf.ClusterSize && rand.Float64() < s.conf.InterClusterChance {
+			gossipNodes[len(gossipNodes)-1] = s.cluster.GetInterCluster(nodeNames, publicKey.String())
+		}
 	}
 
-	var waitGroup sync.WaitGroup
+	var succeeded bool = false
 
-	for index := range randomSubset {
-		waitGroup.Add(1)
+	// Do this synchronously to conserve bandwidth
+	for _, node := range gossipNodes {
+		correspondingPeer := s.manager.GetNode(meshId, node)
 
-		go func(i int) error {
-			defer waitGroup.Done()
-			err := s.requester.SyncMesh(meshId, randomSubset[i])
-			return err
-		}(index)
+		if correspondingPeer == nil {
+			logging.Log.WriteErrorf("node %s does not exist", node)
+		}
+
+		err := s.requester.SyncMesh(meshId, correspondingPeer)
+
+		if err == nil || err == io.EOF {
+			succeeded = true
+		} else {
+			// If the synchronisation operation has failed them mark a gravestone
+			// preventing the peer from being re-contacted until it has updated
+			// itself
+			s.manager.GetMesh(meshId).Mark(node)
+		}
 	}
 
-	waitGroup.Wait()
-
 	s.syncCount++
-	logging.Log.WriteInfof("SYNC TIME: %v", time.Now().Sub(before))
+	logging.Log.WriteInfof("SYNC TIME: %v", time.Since(before))
 	logging.Log.WriteInfof("SYNC COUNT: %d", s.syncCount)
 
 	s.infectionCount = ((s.conf.InfectionCount + s.infectionCount - 1) % s.conf.InfectionCount)
 
+	if !succeeded {
+		// If could not gossip with anyone then repeat.
+		s.infectionCount++
+	}
+
+	s.manager.GetMesh(meshId).SaveChanges()
+	s.lastSync = uint64(time.Now().Unix())
+
+	logging.Log.WriteInfof("UPDATING WG CONF")
+	err = s.manager.ApplyConfig()
+
+	if err != nil {
+		logging.Log.WriteInfof("Failed to update config %w", err)
+	}
+
 	return nil
 }
 
 // SyncMeshes: Sync all meshes
 func (s *SyncerImpl) SyncMeshes() error {
-	for meshId, _ := range s.manager.Meshes {
+	for meshId := range s.manager.GetMeshes() {
 		err := s.Sync(meshId)
 
 		if err != nil {
@@ -118,7 +130,7 @@ func (s *SyncerImpl) SyncMeshes() error {
 	return nil
 }
 
-func NewSyncer(m *mesh.MeshManager, conf *conf.WgMeshConfiguration, r SyncRequester) Syncer {
+func NewSyncer(m mesh.MeshManager, conf *conf.WgMeshConfiguration, r SyncRequester) Syncer {
 	cluster, _ := conn.NewConnCluster(conf.ClusterSize)
 	return &SyncerImpl{
 		manager:        m,

pkg/sync/syncererror.go

@@ -14,32 +14,28 @@ type SyncErrorHandler interface {
 
 // SyncErrorHandlerImpl Is an implementation of the SyncErrorHandler
 type SyncErrorHandlerImpl struct {
-	meshManager *mesh.MeshManager
+	meshManager mesh.MeshManager
 }
 
-func (s *SyncErrorHandlerImpl) incrementFailedCount(meshId string, endpoint string) bool {
+func (s *SyncErrorHandlerImpl) handleFailed(meshId string, nodeId string) bool {
 	mesh := s.meshManager.GetMesh(meshId)
-
-	if mesh == nil {
-		return false
-	}
-
+	mesh.Mark(nodeId)
 	return true
 }
 
-func (s *SyncErrorHandlerImpl) Handle(meshId string, endpoint string, err error) bool {
+func (s *SyncErrorHandlerImpl) Handle(meshId string, nodeId string, err error) bool {
 	errStatus, _ := status.FromError(err)
 
 	logging.Log.WriteInfof("Handled gRPC error: %s", errStatus.Message())
 
 	switch errStatus.Code() {
 	case codes.Unavailable, codes.Unknown, codes.DeadlineExceeded, codes.Internal, codes.NotFound:
-		return s.incrementFailedCount(meshId, endpoint)
+		return s.handleFailed(meshId, nodeId)
 	}
 
 	return false
 }
 
-func NewSyncErrorHandler(m *mesh.MeshManager) SyncErrorHandler {
+func NewSyncErrorHandler(m mesh.MeshManager) SyncErrorHandler {
 	return &SyncErrorHandlerImpl{meshManager: m}
 }

pkg/sync/syncrequester.go

@@ -15,7 +15,7 @@ import (
 // SyncRequester: coordinates the syncing of meshes
 type SyncRequester interface {
 	GetMesh(meshId string, ifName string, port int, endPoint string) error
-	SyncMesh(meshid string, endPoint string) error
+	SyncMesh(meshid string, meshNode mesh.MeshNode) error
 }
 
 type SyncRequesterImpl struct {
@@ -50,15 +50,14 @@ func (s *SyncRequesterImpl) GetMesh(meshId string, ifName string, port int, endP
 
 	err = s.server.MeshManager.AddMesh(&mesh.AddMeshParams{
 		MeshId:    meshId,
-		DevName:   ifName,
 		WgPort:    port,
 		MeshBytes: reply.Mesh,
 	})
 	return err
 }
 
-func (s *SyncRequesterImpl) handleErr(meshId, endpoint string, err error) error {
-	ok := s.errorHdlr.Handle(meshId, endpoint, err)
+func (s *SyncRequesterImpl) handleErr(meshId, pubKey string, err error) error {
+	ok := s.errorHdlr.Handle(meshId, pubKey, err)
 
 	if ok {
 		return nil
@@ -68,7 +67,10 @@ func (s *SyncRequesterImpl) handleErr(meshId, endpoint string, err error) error
 }
 
 // SyncMesh: Proactively send a sync request to the other mesh
-func (s *SyncRequesterImpl) SyncMesh(meshId, endpoint string) error {
+func (s *SyncRequesterImpl) SyncMesh(meshId string, meshNode mesh.MeshNode) error {
+	endpoint := meshNode.GetHostEndpoint()
+	pubKey, _ := meshNode.GetPublicKey()
+
 	peerConnection, err := s.server.ConnectionManager.GetConnection(endpoint)
 
 	if err != nil {
@@ -89,20 +91,22 @@ func (s *SyncRequesterImpl) SyncMesh(meshId, endpoint string) error {
 
 	c := rpc.NewSyncServiceClient(client)
 
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	syncTimeOut := s.server.Conf.SyncRate * float64(time.Second)
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(syncTimeOut))
 	defer cancel()
 
-	err = syncMesh(mesh, ctx, c)
+	err = s.syncMesh(mesh, ctx, c)
 
 	if err != nil {
-		return s.handleErr(meshId, endpoint, err)
+		return s.handleErr(meshId, pubKey.String(), err)
 	}
 
 	logging.Log.WriteInfof("Synced with node: %s meshId: %s\n", endpoint, meshId)
 	return nil
 }
 
-func syncMesh(mesh mesh.MeshProvider, ctx context.Context, client rpc.SyncServiceClient) error {
+func (s *SyncRequesterImpl) syncMesh(mesh mesh.MeshProvider, ctx context.Context, client rpc.SyncServiceClient) error {
 	stream, err := client.SyncMesh(ctx)
 
 	syncer := mesh.GetSyncer()

pkg/sync/syncscheduler.go

@@ -1,55 +1,17 @@
 package sync
 
 import (
-	"time"
-
 	"github.com/tim-beatham/wgmesh/pkg/ctrlserver"
-	logging "github.com/tim-beatham/wgmesh/pkg/log"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
 )
 
-// SyncScheduler: Loops through all nodes in the mesh and runs a schedule to
-// sync each event
-type SyncScheduler interface {
-	Run() error
-	Stop() error
-}
-
-// SyncSchedulerImpl scheduler for sync scheduling
-type SyncSchedulerImpl struct {
-	quit   chan struct{}
-	server *ctrlserver.MeshCtrlServer
-	syncer Syncer
-}
-
 // Run implements SyncScheduler.
-func (s *SyncSchedulerImpl) Run() error {
-	ticker := time.NewTicker(time.Duration(s.server.Conf.SyncRate) * time.Second)
-
-	quit := make(chan struct{})
-	s.quit = quit
-
-	for {
-		select {
-		case <-ticker.C:
-			err := s.syncer.SyncMeshes()
-
-			if err != nil {
-				logging.Log.WriteErrorf(err.Error())
-			}
-			break
-		case <-quit:
-			break
-		}
+func syncFunction(syncer Syncer) lib.TimerFunc {
+	return func() error {
+		return syncer.SyncMeshes()
 	}
 }
 
-// Stop implements SyncScheduler.
-func (s *SyncSchedulerImpl) Stop() error {
-	close(s.quit)
-	return nil
-}
-
-func NewSyncScheduler(s *ctrlserver.MeshCtrlServer, syncRequester SyncRequester) SyncScheduler {
-	syncer := NewSyncer(s.MeshManager, s.Conf, syncRequester)
-	return &SyncSchedulerImpl{server: s, syncer: syncer}
+func NewSyncScheduler(s *ctrlserver.MeshCtrlServer, syncRequester SyncRequester, syncer Syncer) *lib.Timer {
+	return lib.NewTimer(syncFunction(syncer), int(s.Conf.SyncRate))
 }

pkg/sync/syncservice.go

@@ -64,11 +64,11 @@ func (s *SyncServiceImpl) SyncMesh(stream rpc.SyncService_SyncMeshServer) error
 
 			syncer = mesh.GetSyncer()
 		} else if meshId != in.MeshId {
-			return errors.New("Differing MeshIDs")
+			return errors.New("differing meshids")
 		}
 
 		if syncer == nil {
-			return errors.New("Syncer should not be nil")
+			return errors.New("syncer should not be nil")
 		}
 
 		msg, moreMessages := syncer.GenerateMessage()

pkg/timers/timers.go

@@ -0,0 +1,16 @@
+package timer
+
+import (
+	"github.com/tim-beatham/wgmesh/pkg/ctrlserver"
+	"github.com/tim-beatham/wgmesh/pkg/lib"
+	logging "github.com/tim-beatham/wgmesh/pkg/log"
+)
+
+func NewTimestampScheduler(ctrlServer *ctrlserver.MeshCtrlServer) lib.Timer {
+	timerFunc := func() error {
+		logging.Log.WriteInfof("Updated Timestamp")
+		return ctrlServer.MeshManager.UpdateTimeStamp()
+	}
+
+	return *lib.NewTimer(timerFunc, ctrlServer.Conf.KeepAliveTime)
+}

pkg/timestamp/timestamp.go

@@ -1,48 +0,0 @@
-package timestamp
-
-import (
-	"time"
-
-	"github.com/tim-beatham/wgmesh/pkg/ctrlserver"
-	logging "github.com/tim-beatham/wgmesh/pkg/log"
-	"github.com/tim-beatham/wgmesh/pkg/mesh"
-)
-
-type TimestampScheduler interface {
-	Run() error
-	Stop() error
-}
-
-type TimeStampSchedulerImpl struct {
-	meshManager *mesh.MeshManager
-	updateRate  int
-	quit        chan struct{}
-}
-
-func (s *TimeStampSchedulerImpl) Run() error {
-	ticker := time.NewTicker(time.Duration(s.updateRate) * time.Second)
-
-	s.quit = make(chan struct{})
-
-	for {
-		select {
-		case <-ticker.C:
-			err := s.meshManager.UpdateTimeStamp()
-
-			if err != nil {
-				logging.Log.WriteErrorf("Update Timestamp Error: %s", err.Error())
-			}
-		case <-s.quit:
-			break
-		}
-	}
-}
-
-func NewTimestampScheduler(ctrlServer *ctrlserver.MeshCtrlServer) TimestampScheduler {
-	return &TimeStampSchedulerImpl{meshManager: ctrlServer.MeshManager, updateRate: ctrlServer.Conf.KeepAliveRate}
-}
-
-func (s *TimeStampSchedulerImpl) Stop() error {
-	close(s.quit)
-	return nil
-}

pkg/wg/stubs.go

@@ -0,0 +1,15 @@
+package wg
+
+type WgInterfaceManipulatorStub struct{}
+
+func (i *WgInterfaceManipulatorStub) CreateInterface(port int) (string, error) {
+	return "", nil
+}
+
+func (i *WgInterfaceManipulatorStub) AddAddress(ifName string, addr string) error {
+	return nil
+}
+
+func (i *WgInterfaceManipulatorStub) RemoveInterface(ifName string) error {
+	return nil
+}

pkg/wg/types.go

@@ -1,5 +1,7 @@
 package wg
 
+import "golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+
 type WgError struct {
 	msg string
 }
@@ -8,15 +10,11 @@ func (m *WgError) Error() string {
 	return m.msg
 }
 
-type CreateInterfaceParams struct {
-	IfName string
-	Port   int
-}
-
 type WgInterfaceManipulator interface {
 	// CreateInterface creates a WireGuard interface
-	CreateInterface(params *CreateInterfaceParams) error
-	// Enable interface enables the given interface with
-	// the IP. It overrides the IP at the interface
-	EnableInterface(ifName string, ip string) error
+	CreateInterface(port int, privateKey *wgtypes.Key) (string, error)
+	// AddAddress adds an address to the given interface name
+	AddAddress(ifName string, addr string) error
+	// RemoveInterface removes the specified interface
+	RemoveInterface(ifName string) error
 }

pkg/wg/wg.go

@@ -1,110 +1,91 @@
 package wg
 
 import (
-	"errors"
+	"crypto"
+	"crypto/rand"
 	"fmt"
-	"net"
-	"os/exec"
 
+	"github.com/tim-beatham/wgmesh/pkg/lib"
 	logging "github.com/tim-beatham/wgmesh/pkg/log"
 	"golang.zx2c4.com/wireguard/wgctrl"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 )
 
-// createInterface uses ip link to create an interface. If the interface exists
-// it returns an error
-func createInterface(ifName string) error {
-	_, err := net.InterfaceByName(ifName)
-
-	if err == nil {
-		err = flushInterface(ifName)
-		return err
-	}
-
-	// Check if the interface exists
-	cmd := exec.Command("/usr/bin/ip", "link", "add", "dev", ifName, "type", "wireguard")
-
-	if err := cmd.Run(); err != nil {
-		return err
-	}
-	return nil
-}
-
 type WgInterfaceManipulatorImpl struct {
 	client *wgctrl.Client
 }
 
-func (m *WgInterfaceManipulatorImpl) CreateInterface(params *CreateInterfaceParams) error {
-	err := createInterface(params.IfName)
+const hashLength = 6
+
+// CreateInterface creates a WireGuard interface
+func (m *WgInterfaceManipulatorImpl) CreateInterface(port int, privKey *wgtypes.Key) (string, error) {
+	rtnl, err := lib.NewRtNetlinkConfig()
 
 	if err != nil {
-		return err
+		return "", fmt.Errorf("failed to access link: %w", err)
+	}
+	defer rtnl.Close()
+
+	randomBuf := make([]byte, 32)
+	_, err = rand.Read(randomBuf)
+
+	if err != nil {
+		return "", err
 	}
 
-	privateKey, err := wgtypes.GeneratePrivateKey()
+	md5 := crypto.MD5.New().Sum(randomBuf)
+	md5Str := fmt.Sprintf("wg%x", md5)[:hashLength]
+
+	err = rtnl.CreateLink(md5Str)
 
 	if err != nil {
-		return err
+		return "", fmt.Errorf("failed to create link: %w", err)
 	}
 
 	var cfg wgtypes.Config = wgtypes.Config{
-		PrivateKey: &privateKey,
-		ListenPort: &params.Port,
+		PrivateKey: privKey,
+		ListenPort: &port,
 	}
 
-	m.client.ConfigureDevice(params.IfName, cfg)
-	return nil
+	err = m.client.ConfigureDevice(md5Str, cfg)
+
+	if err != nil {
+		m.RemoveInterface(md5Str)
+		return "", fmt.Errorf("failed to configure dev: %w", err)
+	}
+
+	logging.Log.WriteInfof("ip link set up dev %s type wireguard", md5Str)
+	return md5Str, nil
 }
 
-// flushInterface flushes the specified interface
-func flushInterface(ifName string) error {
-	_, err := net.InterfaceByName(ifName)
+// Add an address to the given interface
+func (m *WgInterfaceManipulatorImpl) AddAddress(ifName string, addr string) error {
+	rtnl, err := lib.NewRtNetlinkConfig()
 
 	if err != nil {
-		return &WgError{msg: fmt.Sprintf("Interface %s does not exist cannot flush", ifName)}
+		return fmt.Errorf("failed to create config: %w", err)
+	}
+	defer rtnl.Close()
+
+	err = rtnl.AddAddress(ifName, addr)
+
+	if err != nil {
+		err = fmt.Errorf("failed to add address: %w", err)
 	}
 
-	cmd := exec.Command("/usr/bin/ip", "addr", "flush", "dev", ifName)
-
-	if err := cmd.Run(); err != nil {
-		logging.Log.WriteErrorf(fmt.Sprintf("%s error flushing interface %s", err.Error(), ifName))
-		return &WgError{msg: fmt.Sprintf("Failed to flush interface %s", ifName)}
-	}
-
-	return nil
+	return err
 }
 
-// EnableInterface flushes the interface and sets the ip address of the
-// interface
-func (m *WgInterfaceManipulatorImpl) EnableInterface(ifName string, ip string) error {
-	if len(ifName) == 0 {
-		return errors.New("ifName not provided")
-	}
-
-	err := flushInterface(ifName)
+// RemoveInterface implements WgInterfaceManipulator.
+func (*WgInterfaceManipulatorImpl) RemoveInterface(ifName string) error {
+	rtnl, err := lib.NewRtNetlinkConfig()
 
 	if err != nil {
-		return err
+		return fmt.Errorf("failed to create config: %w", err)
 	}
+	defer rtnl.Close()
 
-	cmd := exec.Command("/usr/bin/ip", "link", "set", "up", "dev", ifName)
-
-	if err := cmd.Run(); err != nil {
-		return err
-	}
-
-	hostIp, _, err := net.ParseCIDR(ip)
-
-	if err != nil {
-		return err
-	}
-
-	cmd = exec.Command("/usr/bin/ip", "addr", "add", hostIp.String()+"/64", "dev", ifName)
-
-	if err := cmd.Run(); err != nil {
-		return err
-	}
-	return nil
+	return rtnl.DeleteLink(ifName)
 }
 
 func NewWgInterfaceManipulator(client *wgctrl.Client) WgInterfaceManipulator {

pkg/what8words/what8words.go

@@ -0,0 +1,92 @@
+// Package to convert an IPV6 addres into 8 words
+package what8words
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"net"
+	"os"
+	"strings"
+)
+
+type What8Words struct {
+	words []string
+}
+
+// Convert implements What8Words.
+func (w *What8Words) Convert(ipStr string) (string, error) {
+	ip, ipNet, err := net.ParseCIDR(ipStr)
+
+	if err != nil {
+		return "", err
+	}
+
+	ip16 := ip.To16()
+
+	if ip16 == nil {
+		return "", fmt.Errorf("cannot convert ip to 16 representation")
+	}
+
+	representation := make([]string, 7)
+
+	for i := 2; i <= net.IPv6len-2; i += 2 {
+		word1 := w.words[ip16[i]]
+		word2 := w.words[ip16[i+1]]
+
+		representation[i/2-1] = fmt.Sprintf("%s-%s", word1, word2)
+	}
+
+	prefixSize, _ := ipNet.Mask.Size()
+	return strings.Join(representation[:prefixSize/16-1], "."), nil
+}
+
+// Convert implements What8Words.
+func (w *What8Words) ConvertIdentifier(ipStr string) (string, error) {
+	ip, err := w.Convert(ipStr)
+
+	if err != nil {
+		return "", err
+	}
+
+	constituents := strings.Split(ip, ".")
+
+	return strings.Join(constituents[3:], "."), nil
+}
+func NewWhat8Words(pathToWords string) (*What8Words, error) {
+	words, err := ReadWords(pathToWords)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &What8Words{words: words}, nil
+}
+
+// ReadWords reads the what 8 words txt file
+func ReadWords(wordFile string) ([]string, error) {
+	f, err := os.ReadFile(wordFile)
+
+	if err != nil {
+		return nil, err
+	}
+
+	words := make([]string, 257)
+
+	reader := bufio.NewScanner(bytes.NewReader(f))
+
+	counter := 0
+
+	for reader.Scan() && counter <= len(words) {
+		text := reader.Text()
+
+		words[counter] = text
+		counter++
+
+		if reader.Err() != nil {
+			return nil, reader.Err()
+		}
+	}
+
+	return words, nil
+}