mirror of
https://github.com/gravitl/netmaker.git
synced 2024-09-21 15:56:07 +08:00
351 lines
9.4 KiB
Go
351 lines
9.4 KiB
Go
package server
|
|
|
|
import (
|
|
"context"
|
|
"crypto/tls"
|
|
"encoding/json"
|
|
"log"
|
|
"net"
|
|
"strconv"
|
|
"time"
|
|
|
|
nodepb "github.com/gravitl/netmaker/grpc"
|
|
"github.com/gravitl/netmaker/models"
|
|
"github.com/gravitl/netmaker/netclient/auth"
|
|
"github.com/gravitl/netmaker/netclient/config"
|
|
"github.com/gravitl/netmaker/netclient/local"
|
|
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/credentials"
|
|
"google.golang.org/grpc/metadata"
|
|
)
|
|
|
|
func getGrpcClient(cfg *config.ClientConfig) (nodepb.NodeServiceClient, error) {
|
|
servercfg := cfg.Server
|
|
var wcclient nodepb.NodeServiceClient
|
|
// == GRPC SETUP ==
|
|
var requestOpts grpc.DialOption
|
|
requestOpts = grpc.WithInsecure()
|
|
if cfg.Server.GRPCSSL == "on" {
|
|
h2creds := credentials.NewTLS(&tls.Config{NextProtos: []string{"h2"}})
|
|
requestOpts = grpc.WithTransportCredentials(h2creds)
|
|
}
|
|
conn, err := grpc.Dial(servercfg.GRPCAddress, requestOpts)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
wcclient = nodepb.NewNodeServiceClient(conn)
|
|
return wcclient, nil
|
|
}
|
|
|
|
func CheckIn(network string) (*models.Node, error) {
|
|
cfg, err := config.ReadConfig(network)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
node := cfg.Node
|
|
wcclient, err := getGrpcClient(cfg)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
// == run client action ==
|
|
var header metadata.MD
|
|
ctx, err := auth.SetJWT(wcclient, network)
|
|
nodeData, err := json.Marshal(&node)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
response, err := wcclient.ReadNode(
|
|
ctx,
|
|
&nodepb.Object{
|
|
Data: string(nodeData),
|
|
Type: nodepb.NODE_TYPE,
|
|
},
|
|
grpc.Header(&header),
|
|
)
|
|
if err != nil {
|
|
log.Printf("Encountered error checking in node: %v", err)
|
|
}
|
|
if err = json.Unmarshal([]byte(response.GetData()), &node); err != nil {
|
|
return nil, err
|
|
}
|
|
return &node, err
|
|
}
|
|
|
|
func RemoveNetwork(network string) error {
|
|
//need to implement checkin on server side
|
|
cfg, err := config.ReadConfig(network)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
servercfg := cfg.Server
|
|
node := cfg.Node
|
|
log.Println("Deleting remote node with MAC: " + node.MacAddress)
|
|
|
|
var wcclient nodepb.NodeServiceClient
|
|
var requestOpts grpc.DialOption
|
|
requestOpts = grpc.WithInsecure()
|
|
if cfg.Server.GRPCSSL == "on" {
|
|
h2creds := credentials.NewTLS(&tls.Config{NextProtos: []string{"h2"}})
|
|
requestOpts = grpc.WithTransportCredentials(h2creds)
|
|
}
|
|
conn, err := grpc.Dial(servercfg.GRPCAddress, requestOpts)
|
|
if err != nil {
|
|
log.Printf("Unable to establish client connection to "+servercfg.GRPCAddress+": %v", err)
|
|
//return err
|
|
} else {
|
|
wcclient = nodepb.NewNodeServiceClient(conn)
|
|
ctx, err := auth.SetJWT(wcclient, network)
|
|
if err != nil {
|
|
//return err
|
|
log.Printf("Failed to authenticate: %v", err)
|
|
} else {
|
|
|
|
var header metadata.MD
|
|
|
|
_, err = wcclient.DeleteNode(
|
|
ctx,
|
|
&nodepb.Object{
|
|
Data: node.MacAddress + "###" + node.Network,
|
|
Type: nodepb.STRING_TYPE,
|
|
},
|
|
grpc.Header(&header),
|
|
)
|
|
if err != nil {
|
|
log.Printf("Encountered error deleting node: %v", err)
|
|
log.Println(err)
|
|
} else {
|
|
log.Println("Deleted node " + node.MacAddress)
|
|
}
|
|
}
|
|
}
|
|
err = local.WipeLocal(network)
|
|
if err != nil {
|
|
log.Printf("Unable to wipe local config: %v", err)
|
|
}
|
|
if cfg.Daemon != "off" {
|
|
err = local.RemoveSystemDServices(network)
|
|
}
|
|
return err
|
|
}
|
|
|
|
func GetPeers(macaddress string, network string, server string, dualstack bool, isIngressGateway bool) ([]wgtypes.PeerConfig, bool, []string, error) {
|
|
//need to implement checkin on server side
|
|
hasGateway := false
|
|
var gateways []string
|
|
var peers []wgtypes.PeerConfig
|
|
var wcclient nodepb.NodeServiceClient
|
|
cfg, err := config.ReadConfig(network)
|
|
if err != nil {
|
|
log.Fatalf("Issue retrieving config for network: "+network+". Please investigate: %v", err)
|
|
}
|
|
nodecfg := cfg.Node
|
|
keepalive := nodecfg.PersistentKeepalive
|
|
keepalivedur, err := time.ParseDuration(strconv.FormatInt(int64(keepalive), 10) + "s")
|
|
keepaliveserver, err := time.ParseDuration(strconv.FormatInt(int64(5), 10) + "s")
|
|
if err != nil {
|
|
log.Fatalf("Issue with format of keepalive value. Please update netconfig: %v", err)
|
|
}
|
|
|
|
requestOpts := grpc.WithInsecure()
|
|
if cfg.Server.GRPCSSL == "on" {
|
|
h2creds := credentials.NewTLS(&tls.Config{NextProtos: []string{"h2"}})
|
|
requestOpts = grpc.WithTransportCredentials(h2creds)
|
|
}
|
|
|
|
conn, err := grpc.Dial(server, requestOpts)
|
|
if err != nil {
|
|
log.Fatalf("Unable to establish client connection to localhost:50051: %v", err)
|
|
}
|
|
// Instantiate the BlogServiceClient with our client connection to the server
|
|
wcclient = nodepb.NewNodeServiceClient(conn)
|
|
|
|
req := &nodepb.Object{
|
|
Data: macaddress + "###" + network,
|
|
Type: nodepb.STRING_TYPE,
|
|
}
|
|
|
|
ctx, err := auth.SetJWT(wcclient, network)
|
|
if err != nil {
|
|
log.Println("Failed to authenticate.")
|
|
return peers, hasGateway, gateways, err
|
|
}
|
|
var header metadata.MD
|
|
|
|
response, err := wcclient.GetPeers(ctx, req, grpc.Header(&header))
|
|
if err != nil {
|
|
log.Println("Error retrieving peers")
|
|
log.Println(err)
|
|
return nil, hasGateway, gateways, err
|
|
}
|
|
var nodes []models.Node
|
|
if err := json.Unmarshal([]byte(response.GetData()), &nodes); err != nil {
|
|
log.Println("Error unmarshaling data for peers")
|
|
return nil, hasGateway, gateways, err
|
|
}
|
|
for _, node := range nodes {
|
|
pubkey, err := wgtypes.ParseKey(node.PublicKey)
|
|
if err != nil {
|
|
log.Println("error parsing key")
|
|
return peers, hasGateway, gateways, err
|
|
}
|
|
|
|
if nodecfg.PublicKey == node.PublicKey {
|
|
continue
|
|
}
|
|
if nodecfg.Endpoint == node.Endpoint {
|
|
if nodecfg.LocalAddress != node.LocalAddress && node.LocalAddress != "" {
|
|
node.Endpoint = node.LocalAddress
|
|
} else {
|
|
continue
|
|
}
|
|
}
|
|
|
|
var peer wgtypes.PeerConfig
|
|
var peeraddr = net.IPNet{
|
|
IP: net.ParseIP(node.Address),
|
|
Mask: net.CIDRMask(32, 32),
|
|
}
|
|
var allowedips []net.IPNet
|
|
allowedips = append(allowedips, peeraddr)
|
|
if node.IsEgressGateway == "yes" {
|
|
hasGateway = true
|
|
ranges := node.EgressGatewayRanges
|
|
for _, iprange := range ranges {
|
|
gateways = append(gateways, iprange)
|
|
_, ipnet, err := net.ParseCIDR(iprange)
|
|
if err != nil {
|
|
log.Println("ERROR ENCOUNTERED SETTING GATEWAY")
|
|
} else {
|
|
if !ipnet.Contains(net.IP(node.Endpoint)) {
|
|
allowedips = append(allowedips, *ipnet)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if node.Address6 != "" && dualstack {
|
|
var addr6 = net.IPNet{
|
|
IP: net.ParseIP(node.Address6),
|
|
Mask: net.CIDRMask(128, 128),
|
|
}
|
|
allowedips = append(allowedips, addr6)
|
|
}
|
|
if nodecfg.Name == "netmaker" {
|
|
peer = wgtypes.PeerConfig{
|
|
PublicKey: pubkey,
|
|
PersistentKeepaliveInterval: &keepaliveserver,
|
|
ReplaceAllowedIPs: true,
|
|
AllowedIPs: allowedips,
|
|
}
|
|
} else if keepalive != 0 {
|
|
peer = wgtypes.PeerConfig{
|
|
PublicKey: pubkey,
|
|
PersistentKeepaliveInterval: &keepalivedur,
|
|
Endpoint: &net.UDPAddr{
|
|
IP: net.ParseIP(node.Endpoint),
|
|
Port: int(node.ListenPort),
|
|
},
|
|
ReplaceAllowedIPs: true,
|
|
AllowedIPs: allowedips,
|
|
}
|
|
} else {
|
|
peer = wgtypes.PeerConfig{
|
|
PublicKey: pubkey,
|
|
Endpoint: &net.UDPAddr{
|
|
IP: net.ParseIP(node.Endpoint),
|
|
Port: int(node.ListenPort),
|
|
},
|
|
ReplaceAllowedIPs: true,
|
|
AllowedIPs: allowedips,
|
|
}
|
|
}
|
|
peers = append(peers, peer)
|
|
|
|
}
|
|
if isIngressGateway {
|
|
extPeers, err := GetExtPeers(macaddress, network, server, dualstack)
|
|
if err == nil {
|
|
peers = append(peers, extPeers...)
|
|
} else {
|
|
log.Println("ERROR RETRIEVING EXTERNAL PEERS")
|
|
}
|
|
}
|
|
return peers, hasGateway, gateways, err
|
|
}
|
|
|
|
func GetExtPeers(macaddress string, network string, server string, dualstack bool) ([]wgtypes.PeerConfig, error) {
|
|
var peers []wgtypes.PeerConfig
|
|
var wcclient nodepb.NodeServiceClient
|
|
cfg, err := config.ReadConfig(network)
|
|
if err != nil {
|
|
log.Fatalf("Issue retrieving config for network: "+network+". Please investigate: %v", err)
|
|
}
|
|
nodecfg := cfg.Node
|
|
|
|
requestOpts := grpc.WithInsecure()
|
|
conn, err := grpc.Dial(server, requestOpts)
|
|
if err != nil {
|
|
log.Fatalf("Unable to establish client connection to localhost:50051: %v", err)
|
|
}
|
|
// Instantiate the BlogServiceClient with our client connection to the server
|
|
wcclient = nodepb.NewNodeServiceClient(conn)
|
|
|
|
req := &nodepb.Object{
|
|
Data: macaddress + "###" + network,
|
|
Type: nodepb.STRING_TYPE,
|
|
}
|
|
ctx := context.Background()
|
|
ctx, err = auth.SetJWT(wcclient, network)
|
|
if err != nil {
|
|
log.Println("Failed to authenticate.")
|
|
return peers, err
|
|
}
|
|
var header metadata.MD
|
|
|
|
responseObject, err := wcclient.GetExtPeers(ctx, req, grpc.Header(&header))
|
|
if err != nil {
|
|
log.Println("Error retrieving peers")
|
|
log.Println(err)
|
|
return nil, err
|
|
}
|
|
var extPeers []models.Node
|
|
if err = json.Unmarshal([]byte(responseObject.Data), &extPeers); err != nil {
|
|
return nil, err
|
|
}
|
|
for _, extPeer := range extPeers {
|
|
pubkey, err := wgtypes.ParseKey(extPeer.PublicKey)
|
|
if err != nil {
|
|
log.Println("error parsing key")
|
|
return peers, err
|
|
}
|
|
|
|
if nodecfg.PublicKey == extPeer.PublicKey {
|
|
continue
|
|
}
|
|
|
|
var peer wgtypes.PeerConfig
|
|
var peeraddr = net.IPNet{
|
|
IP: net.ParseIP(extPeer.Address),
|
|
Mask: net.CIDRMask(32, 32),
|
|
}
|
|
var allowedips []net.IPNet
|
|
allowedips = append(allowedips, peeraddr)
|
|
|
|
if extPeer.Address6 != "" && dualstack {
|
|
var addr6 = net.IPNet{
|
|
IP: net.ParseIP(extPeer.Address6),
|
|
Mask: net.CIDRMask(128, 128),
|
|
}
|
|
allowedips = append(allowedips, addr6)
|
|
}
|
|
peer = wgtypes.PeerConfig{
|
|
PublicKey: pubkey,
|
|
ReplaceAllowedIPs: true,
|
|
AllowedIPs: allowedips,
|
|
}
|
|
peers = append(peers, peer)
|
|
|
|
}
|
|
return peers, err
|
|
}
|