peer update functionality

controllers/common.go

@@ -175,6 +175,7 @@ func UpdateNode(nodechange models.Node, node models.Node) (models.Node, error) {
     }
     if nodechange.PublicKey != "" {
         node.PublicKey = nodechange.PublicKey
+	node.KeyUpdateTimeStamp = time.Now().Unix()
 	notifygroup = true
     }
 
@@ -195,6 +196,7 @@ func UpdateNode(nodechange models.Node, node models.Node) (models.Node, error) {
                         {"password", node.Password},
                         {"listenport", node.ListenPort},
                         {"publickey", node.PublicKey},
+                        {"keyupdatetimestamp", node.KeyUpdateTimeStamp},
                         {"endpoint", node.Endpoint},
                         {"postup", node.PostUp},
                         {"preup", node.PreUp},
@@ -307,7 +309,7 @@ func CreateNode(node models.Node, groupName string) (models.Node, error) {
         node.SetDefaultName()
 	node.SetLastCheckIn()
 	node.SetLastPeerUpdate()
-
+	node.KeyUpdateTimeStamp = time.Now().Unix()
 
         //Create a JWT for the node
         tokenString, _ := functions.CreateJWT(node.MacAddress, groupName)
@@ -366,6 +368,8 @@ func NodeCheckIn(node models.Node, groupName string) (models.CheckInResponse, er
 
         grouplm := parentgroup.GroupLastModified
 	peerslm := parentgroup.NodesLastModified
+	gkeyupdate := parentgroup.KeyUpdateTimeStamp
+	nkeyupdate := parentnode.KeyUpdateTimeStamp
 	peerlistlm := parentnode.LastPeerUpdate
         parentnodelm := parentnode.LastModified
 	parentnodelastcheckin := parentnode.LastCheckIn
@@ -380,6 +384,9 @@ func NodeCheckIn(node models.Node, groupName string) (models.CheckInResponse, er
 	if peerlistlm < peerslm {
 		response.NeedPeerUpdate = true
 	}
+	if nkeyupdate < gkeyupdate {
+		response.NeedKeyUpdate = true
+	}
 	/*
 	if postchanges {
 		parentnode, err = UpdateNode(node, parentnode)

controllers/groupHttpController.go

@@ -21,6 +21,7 @@ import (
 func groupHandlers(r *mux.Router) {
     r.HandleFunc("/api/groups", securityCheck(http.HandlerFunc(getGroups))).Methods("GET")
     r.HandleFunc("/api/groups", securityCheck(http.HandlerFunc(createGroup))).Methods("POST")
+    r.HandleFunc("/api/groups/{groupname}/keyupdate", securityCheck(http.HandlerFunc(keyUpdate))).Methods("POST")
     r.HandleFunc("/api/groups/{groupname}", securityCheck(http.HandlerFunc(getGroup))).Methods("GET")
     r.HandleFunc("/api/groups/{groupname}/numnodes", securityCheck(http.HandlerFunc(getGroupNodeNumber))).Methods("GET")
     r.HandleFunc("/api/groups/{groupname}", securityCheck(http.HandlerFunc(updateGroup))).Methods("PUT")
@@ -193,6 +194,59 @@ func getGroup(w http.ResponseWriter, r *http.Request) {
         json.NewEncoder(w).Encode(group)
 }
 
+func keyUpdate(w http.ResponseWriter, r *http.Request) {
+
+        w.Header().Set("Content-Type", "application/json")
+
+        var params = mux.Vars(r)
+
+        var group models.Group
+
+        group, err := functions.GetParentGroup(params["groupname"])
+        if err != nil {
+		return
+        }
+
+	group.KeyUpdateTimeStamp = time.Now().Unix()
+
+        collection := mongoconn.Client.Database("netmaker").Collection("groups")
+
+        ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+
+        filter := bson.M{"nameid": params["groupname"]}
+
+        // prepare update model.
+        update := bson.D{
+                {"$set", bson.D{
+                        {"addressrange", group.AddressRange},
+                        {"displayname", group.DisplayName},
+                        {"defaultlistenport", group.DefaultListenPort},
+                        {"defaultpostup", group.DefaultPostUp},
+                        {"defaultpreup", group.DefaultPreUp},
+			{"defaultkeepalive", group.DefaultKeepalive},
+                        {"keyupdatetimestamp", group.KeyUpdateTimeStamp},
+                        {"defaultsaveconfig", group.DefaultSaveConfig},
+                        {"defaultinterface", group.DefaultInterface},
+                        {"nodeslastmodified", group.NodesLastModified},
+                        {"grouplastmodified", group.GroupLastModified},
+                        {"allowmanualsignup", group.AllowManualSignUp},
+                        {"defaultcheckininterval", group.DefaultCheckInInterval},
+                }},
+        }
+
+        errN := collection.FindOneAndUpdate(ctx, filter, update).Decode(&group)
+
+        defer cancel()
+
+        if errN != nil {
+                mongoconn.GetError(errN, w)
+                fmt.Println(errN)
+                return
+        }
+
+        json.NewEncoder(w).Encode(group)
+}
+
 //Update a group
 func updateGroup(w http.ResponseWriter, r *http.Request) {
 
@@ -405,6 +459,7 @@ func createGroup(w http.ResponseWriter, r *http.Request) {
 	group.SetDefaults()
         group.SetNodesLastModified()
         group.SetGroupLastModified()
+        group.KeyUpdateTimeStamp = time.Now().Unix()
 
 
         collection := mongoconn.Client.Database("netmaker").Collection("groups")

controllers/nodeGrpcController.go

@@ -172,6 +172,7 @@ func (s *NodeServiceServer) CheckIn(ctx context.Context, req *nodepb.CheckInReq)
                         Success:  checkinresponse.Success,
                         Needpeerupdate:  checkinresponse.NeedPeerUpdate,
                         Needconfigupdate:  checkinresponse.NeedConfigUpdate,
+                        Needkeyupdate:  checkinresponse.NeedKeyUpdate,
                         Nodemessage:  checkinresponse.NodeMessage,
                         Ispending:  checkinresponse.IsPending,
                 },

grpc/node.pb.go

@@ -311,6 +311,7 @@ type CheckInResponse struct {
 	Needconfigupdate     bool     `protobuf:"varint,3,opt,name=needconfigupdate,proto3" json:"needconfigupdate,omitempty"`
 	Nodemessage          string   `protobuf:"bytes,4,opt,name=nodemessage,proto3" json:"nodemessage,omitempty"`
 	Ispending            bool     `protobuf:"varint,5,opt,name=ispending,proto3" json:"ispending,omitempty"`
+	Needkeyupdate        bool     `protobuf:"varint,6,opt,name=needkeyupdate,proto3" json:"needkeyupdate,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
 	XXX_sizecache        int32    `json:"-"`
@@ -376,6 +377,13 @@ func (m *CheckInResponse) GetIspending() bool {
 	return false
 }
 
+func (m *CheckInResponse) GetNeedkeyupdate() bool {
+	if m != nil {
+		return m.Needkeyupdate
+	}
+	return false
+}
+
 type PeersResponse struct {
 	Publickey            string   `protobuf:"bytes,5,opt,name=publickey,proto3" json:"publickey,omitempty"`
 	Endpoint             string   `protobuf:"bytes,6,opt,name=endpoint,proto3" json:"endpoint,omitempty"`
@@ -970,56 +978,57 @@ func init() {
 func init() { proto.RegisterFile("grpc/node.proto", fileDescriptor_d13bd996b67da4ef) }
 
 var fileDescriptor_d13bd996b67da4ef = []byte{
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+	0x28, 0x73, 0x5e, 0x9d, 0xe1, 0x2b, 0x6b, 0xd8, 0x3a, 0x1c, 0x41, 0x5b, 0xfb, 0xee, 0x9f, 0x33,
-	0x21, 0xd6, 0x41, 0xf5, 0xaf, 0xd4, 0x39, 0xab, 0x61, 0xf9, 0x96, 0x7e, 0x03, 0x50, 0xd2, 0x97,
+	0x18, 0x6b, 0xef, 0xbf, 0x61, 0xb6, 0x4f, 0x42, 0x24, 0xb7, 0xd0, 0x33, 0xff, 0x8b, 0x84, 0x58,
-	0xe4, 0x2a, 0xb5, 0x0d, 0x70, 0xf6, 0x80, 0x8a, 0xdc, 0x42, 0xbf, 0xa0, 0x07, 0xf9, 0x68, 0x15,
+	0x07, 0xf5, 0x3f, 0x5c, 0xef, 0xaa, 0x81, 0xb9, 0x2d, 0xfd, 0x1a, 0xa0, 0xa2, 0x2f, 0x71, 0x2a,
-	0x2a, 0x9c, 0x73, 0x5e, 0x40, 0x4a, 0x47, 0x2a, 0x69, 0x5c, 0x44, 0xaa, 0x6d, 0x82, 0xb3, 0x07,
+	0x8d, 0x0d, 0xf0, 0x8e, 0x80, 0x8a, 0xdc, 0xc2, 0xb0, 0xa4, 0x07, 0x79, 0x69, 0x15, 0x6a, 0x9c,
-	0x34, 0x76, 0x25, 0x15, 0x0a, 0xbb, 0x1a, 0xd7, 0x9c, 0x3d, 0xa0, 0x22, 0x77, 0xd0, 0x2f, 0x46,
+	0xf3, 0x1e, 0x41, 0x4a, 0x47, 0xaa, 0x68, 0x5c, 0x46, 0x6a, 0x6c, 0x82, 0x77, 0x04, 0x34, 0x76,
-	0x5a, 0x64, 0x58, 0xe1, 0x89, 0xf3, 0x02, 0x52, 0xb7, 0x2d, 0x72, 0x03, 0xbd, 0xbc, 0xe7, 0xe4,
+	0x15, 0x15, 0x4a, 0xbb, 0x06, 0xd7, 0xbc, 0x23, 0xa0, 0x22, 0x77, 0x30, 0x2c, 0x47, 0x5a, 0x66,
-	0xb4, 0x31, 0x82, 0x8d, 0xd3, 0x44, 0xd4, 0xf7, 0xf3, 0x3f, 0x6f, 0x42, 0x21, 0xc2, 0x18, 0x67,
+	0x58, 0xe3, 0x89, 0xf7, 0x08, 0x52, 0xb7, 0x1d, 0x72, 0x03, 0x03, 0xd7, 0x73, 0x72, 0xd9, 0x1a,
-	0xa1, 0x88, 0x19, 0x0f, 0x67, 0x22, 0x09, 0xe7, 0xe6, 0x6b, 0x66, 0x91, 0x2d, 0xe7, 0xe9, 0xb3,
+	0xc1, 0xce, 0x6b, 0x23, 0xea, 0xbb, 0xe5, 0x1f, 0x37, 0xb1, 0x10, 0x71, 0x8a, 0x8b, 0x58, 0xa4,
-	0x44, 0x35, 0x5f, 0x71, 0xf1, 0xc4, 0xcd, 0x77, 0x8e, 0x5c, 0x2c, 0x8e, 0xcc, 0xe3, 0xd7, 0xff,
+	0x8c, 0xc7, 0x0b, 0x91, 0xc5, 0x4b, 0xf3, 0xcd, 0xb3, 0x2a, 0xd6, 0xcb, 0xfc, 0x41, 0xa2, 0x5a,
-	0x05, 0x00, 0x00, 0xff, 0xff, 0x04, 0x8b, 0xcd, 0xc5, 0xfd, 0x08, 0x00, 0x00,
+	0x6e, 0xb8, 0xf8, 0xc0, 0xcd, 0xd7, 0x90, 0x5c, 0xad, 0xfa, 0xe6, 0xf1, 0xab, 0x7f, 0x03, 0x00,
+	0x00, 0xff, 0xff, 0x32, 0x60, 0x03, 0x3b, 0x23, 0x09, 0x00, 0x00,
 }

grpc/node.proto

@@ -49,6 +49,7 @@ message CheckInResponse {
     bool needconfigupdate = 3;
     string nodemessage = 4;
     bool ispending = 5;
+    bool needkeyupdate = 6;
 }
 
 message PeersResponse {

models/group.go

@@ -19,6 +19,7 @@ type Group struct {
         DefaultListenPort      int32 `json:"defaultlistenport,omitempty" bson:"defaultlistenport,omitempty" validate:"omitempty,numeric,min=1024,max=65535"`
         DefaultPostUp  string `json:"defaultpostup" bson:"defaultpostup"`
         DefaultPreUp   string `json:"defaultpreup" bson:"defaultpreup"`
+        KeyUpdateTimeStamp      int64 `json:"keyupdatetimestamp" bson:"keyupdatetimestamp"`
         DefaultKeepalive int32 `json:"defaultkeepalive" bson:"defaultkeepalive" validate: "omitempty,numeric,max=1000"`
         DefaultSaveConfig      *bool `json:"defaultsaveconfig" bson:"defaultsaveconfig"`
 	AccessKeys	[]AccessKey `json:"accesskeys" bson:"accesskeys"`

models/node.go

@@ -31,6 +31,7 @@ type Node struct {
 	AccessKey	string `json:"accesskey" bson:"accesskey"`
 	Interface	string `json:"interface" bson:"interface"`
 	LastModified	int64 `json:"lastmodified" bson:"lastmodified"`
+	KeyUpdateTimeStamp	int64 `json:"keyupdatetimestamp" bson:"keyupdatetimestamp"`
 	LastPeerUpdate	int64 `json:"lastpeerupdate" bson:"lastpeerupdate"`
 	LastCheckIn	int64 `json:"lastcheckin" bson:"lastcheckin"`
 	MacAddress	string `json:"macaddress" bson:"macaddress" validate:"required,macaddress_valid,macaddress_unique"`

models/structs.go

@@ -84,6 +84,7 @@ type CheckInResponse struct{
     Success bool `json:"success" bson:"success"`
     NeedPeerUpdate bool `json:"needpeerupdate" bson:"needpeerupdate"`
     NeedConfigUpdate bool `json:"needconfigupdate" bson:"needconfigupdate"`
+    NeedKeyUpdate bool `json:"needkeyupdate" bson:"needkeyupdate"`
     NodeMessage string `json:"nodemessage" bson:"nodemessage"`
     IsPending bool `json:"ispending" bson:"ispending"`
 }

netclient/functions/common.go

@@ -440,15 +440,7 @@ func getMacAddr() ([]string, error) {
     }
     return as, nil
 }
-/*
-func read(macaddress string,  group string) error {
-	//this would be  used  for retrieving state as set by the server.
-}
 
-func checkLocalConfigChange() error {
-
-}
-*/
 
 func initWireguard(node *nodepb.Node, privkey string, peers []wgtypes.PeerConfig) error  {
 
@@ -586,6 +578,71 @@ func initWireguard(node *nodepb.Node, privkey string, peers []wgtypes.PeerConfig
 	return err
 }
 
+func setWGKeyConfig(network string, serveraddr string) error {
+
+        ctx := context.Background()
+        var header metadata.MD
+
+        var wcclient nodepb.NodeServiceClient
+        var requestOpts grpc.DialOption
+        requestOpts = grpc.WithInsecure()
+        conn, err := grpc.Dial(serveraddr, requestOpts)
+        if err != nil {
+                fmt.Printf("Cant dial GRPC server: %v", err)
+                return err
+        }
+        wcclient = nodepb.NewNodeServiceClient(conn)
+
+	fmt.Println("Authenticating with GRPC Server")
+        ctx, err = SetJWT(wcclient, network)
+        if err != nil {
+                fmt.Printf("Failed to authenticate: %v", err)
+                return err
+        }
+        fmt.Println("Authenticated")
+
+
+	node := getNode(network)
+
+	privatekey, err := wgtypes.GeneratePrivateKey()
+	if err != nil {
+		return err
+	}
+	privkeystring := privatekey.String()
+	publickey := privatekey.PublicKey()
+
+	node.Publickey = publickey.String()
+
+	err = storePrivKey(privkeystring)
+        if err != nil {
+                return err
+        }
+        err = modConfig(&node)
+        if err != nil {
+                return err
+        }
+
+
+	postnode := getNode(network)
+
+        req := &nodepb.UpdateNodeReq{
+               Node: &postnode,
+        }
+
+        _, err = wcclient.UpdateNode(ctx, req, grpc.Header(&header))
+        if err != nil {
+                return err
+        }
+        err = setWGConfig(network)
+        if err != nil {
+                return err
+                log.Fatalf("Error: %v", err)
+        }
+
+        return err
+}
+
+
 func setWGConfig(network string) error {
 
         cfg, err := config.ReadConfig(network)
@@ -615,12 +672,12 @@ func setWGConfig(network string) error {
 
 func storePrivKey(key string) error{
 	d1 := []byte(key)
-	err := ioutil.WriteFile("/root/.wckey", d1, 0644)
+	err := ioutil.WriteFile("/etc/netclient/wgkey", d1, 0644)
 	return err
 }
 
 func retrievePrivKey() (string, error) {
-	dat, err := ioutil.ReadFile("/root/.wckey")
+	dat, err := ioutil.ReadFile("/etc/netclient/wgkey")
 	return string(dat), err
 }
 
@@ -852,6 +909,16 @@ func CheckIn(network string) error {
                 }
 		setupcheck = false
 	}
+        if checkinres.Checkinresponse.Needkeyupdate {
+                fmt.Println("Server has requested that node update key pairs.")
+                fmt.Println("Proceeding to re-generate key pairs for Wiregard.")
+                err = setWGKeyConfig(network, servercfg.Address)
+                if err != nil {
+                        return err
+                        log.Fatalf("Unable to process reset keys request: %v", err)
+                }
+                setupcheck = false
+        }
         if checkinres.Checkinresponse.Needpeerupdate {
                 fmt.Println("Server has requested that node update peer list.")
                 fmt.Println("Updating peer list from remote server.")