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[relay] Feature/relay integration (#2244)

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This update adds new relay integration for NetBird clients. The new relay is based on web sockets and listens on a single port.

- Adds new relay implementation with websocket with single port relaying mechanism
- refactor peer connection logic, allowing upgrade and downgrade from/to P2P connection
- peer connections are faster since it connects first to relay and then upgrades to P2P
- maintains compatibility with old clients by not using the new relay
- updates infrastructure scripts with new relay service
This commit is contained in:
Zoltan Papp 2024-09-08 12:06:14 +02:00 committed by GitHub
parent fcac02a92f
commit 0c039274a4
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
120 changed files with 9879 additions and 1940 deletions
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30
.github/workflows/test-infrastructure-files.yml vendored
View File

@ -150,6 +150,13 @@ jobs:
grep -A 10 PKCEAuthorizationFlow management.json | grep -A 10 ProviderConfig | grep -A 3 RedirectURLs | grep "http://localhost:53000"
grep "external-ip" turnserver.conf | grep $CI_NETBIRD_TURN_EXTERNAL_IP
grep NETBIRD_STORE_ENGINE_POSTGRES_DSN docker-compose.yml | egrep "$NETBIRD_STORE_ENGINE_POSTGRES_DSN"
# check relay values
grep "NB_EXPOSED_ADDRESS=$CI_NETBIRD_DOMAIN:33445" docker-compose.yml
grep "NB_LISTEN_ADDRESS=:33445" docker-compose.yml
grep '33445:33445' docker-compose.yml
grep -A 10 'relay:' docker-compose.yml | egrep 'NB_AUTH_SECRET=.+$'
grep -A 7 Relay management.json | grep "rel://$CI_NETBIRD_DOMAIN:33445"
grep -A 7 Relay management.json | egrep '"Secret": ".+"'
- name: Install modules
run: go mod tidy
@ -175,6 +182,15 @@ jobs:
run: |
docker build -t netbirdio/signal:latest .
- name: Build relay binary
working-directory: relay
run: CGO_ENABLED=0 go build -o netbird-relay main.go
- name: Build relay docker image
working-directory: relay
run: |
docker build -t netbirdio/relay:latest .
- name: run docker compose up
working-directory: infrastructure_files/artifacts
run: |
@ -186,7 +202,7 @@ jobs:
- name: test running containers
run: |
count=$(docker compose ps --format json | jq '. | select(.Name | contains("artifacts")) | .State' | grep -c running)
test $count -eq 4 || docker compose logs
test $count -eq 5 || docker compose logs
working-directory: infrastructure_files/artifacts
- name: test geolocation databases
@ -205,6 +221,9 @@ jobs:
- name: Checkout code
uses: actions/checkout@v3
- name: handle insisting image # remove after release
run: docker pull netbirdio/relay:latest || docker pull netbirdio/signal:latest && docker tag netbirdio/signal:latest netbirdio/relay:latest
- name: run script with Zitadel PostgreSQL
run: NETBIRD_DOMAIN=use-ip bash -x infrastructure_files/getting-started-with-zitadel.sh
@ -229,6 +248,9 @@ jobs:
- name: test dashboard.env file gen postgres
run: test -f dashboard.env
- name: test relay.env file gen postgres
run: test -f relay.env
- name: test zdb.env file gen postgres
run: test -f zdb.env
@ -237,6 +259,9 @@ jobs:
docker compose down --volumes --rmi all
rm -rf docker-compose.yml Caddyfile zitadel.env dashboard.env machinekey/zitadel-admin-sa.token turnserver.conf management.json zdb.env
- name: handle insisting image gen CockroachDB # remove after release
run: docker pull netbirdio/relay:latest || docker pull netbirdio/signal:latest && docker tag netbirdio/signal:latest netbirdio/relay:latest
- name: run script with Zitadel CockroachDB
run: bash -x infrastructure_files/getting-started-with-zitadel.sh
env:
@ -264,6 +289,9 @@ jobs:
- name: test dashboard.env file gen CockroachDB
run: test -f dashboard.env
- name: test relay.env file gen CockroachDB
run: test -f relay.env
test-download-geolite2-script:
runs-on: ubuntu-latest
steps:

72
.goreleaser.yaml
View File

@ -80,6 +80,20 @@ builds:
- -s -w -X github.com/netbirdio/netbird/version.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: '{{ .CommitTimestamp }}'
- id: netbird-relay
dir: relay
env: [CGO_ENABLED=0]
binary: netbird-relay
goos:
- linux
goarch:
- amd64
- arm64
- arm
ldflags:
- -s -w -X github.com/netbirdio/netbird/version.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: '{{ .CommitTimestamp }}'
archives:
- builds:
- netbird
@ -161,6 +175,52 @@ dockers:
- "--label=org.opencontainers.image.revision={{.FullCommit}}"
- "--label=org.opencontainers.image.version={{.Version}}"
- "--label=maintainer=dev@netbird.io"
- image_templates:
- netbirdio/relay:{{ .Version }}-amd64
ids:
- netbird-relay
goarch: amd64
use: buildx
dockerfile: relay/Dockerfile
build_flag_templates:
- "--platform=linux/amd64"
- "--label=org.opencontainers.image.created={{.Date}}"
- "--label=org.opencontainers.image.title={{.ProjectName}}"
- "--label=org.opencontainers.image.version={{.Version}}"
- "--label=org.opencontainers.image.revision={{.FullCommit}}"
- "--label=org.opencontainers.image.version={{.Version}}"
- "--label=maintainer=dev@netbird.io"
- image_templates:
- netbirdio/relay:{{ .Version }}-arm64v8
ids:
- netbird-relay
goarch: arm64
use: buildx
dockerfile: relay/Dockerfile
build_flag_templates:
- "--platform=linux/arm64"
- "--label=org.opencontainers.image.created={{.Date}}"
- "--label=org.opencontainers.image.title={{.ProjectName}}"
- "--label=org.opencontainers.image.version={{.Version}}"
- "--label=org.opencontainers.image.revision={{.FullCommit}}"
- "--label=org.opencontainers.image.version={{.Version}}"
- "--label=maintainer=dev@netbird.io"
- image_templates:
- netbirdio/relay:{{ .Version }}-arm
ids:
- netbird-relay
goarch: arm
goarm: 6
use: buildx
dockerfile: relay/Dockerfile
build_flag_templates:
- "--platform=linux/arm"
- "--label=org.opencontainers.image.created={{.Date}}"
- "--label=org.opencontainers.image.title={{.ProjectName}}"
- "--label=org.opencontainers.image.version={{.Version}}"
- "--label=org.opencontainers.image.revision={{.FullCommit}}"
- "--label=org.opencontainers.image.version={{.Version}}"
- "--label=maintainer=dev@netbird.io"
- image_templates:
- netbirdio/signal:{{ .Version }}-amd64
ids:
@ -313,6 +373,18 @@ docker_manifests:
- netbirdio/netbird:{{ .Version }}-arm
- netbirdio/netbird:{{ .Version }}-amd64
- name_template: netbirdio/relay:{{ .Version }}
image_templates:
- netbirdio/relay:{{ .Version }}-arm64v8
- netbirdio/relay:{{ .Version }}-arm
- netbirdio/relay:{{ .Version }}-amd64
- name_template: netbirdio/relay:latest
image_templates:
- netbirdio/relay:{{ .Version }}-arm64v8
- netbirdio/relay:{{ .Version }}-arm
- netbirdio/relay:{{ .Version }}-amd64
- name_template: netbirdio/signal:{{ .Version }}
image_templates:
- netbirdio/signal:{{ .Version }}-arm64v8

15
client/cmd/status.go
View File

@ -31,9 +31,9 @@ type peerStateDetailOutput struct {
Status string `json:"status" yaml:"status"`
LastStatusUpdate time.Time `json:"lastStatusUpdate" yaml:"lastStatusUpdate"`
ConnType string `json:"connectionType" yaml:"connectionType"`
Direct bool `json:"direct" yaml:"direct"`
IceCandidateType iceCandidateType `json:"iceCandidateType" yaml:"iceCandidateType"`
IceCandidateEndpoint iceCandidateType `json:"iceCandidateEndpoint" yaml:"iceCandidateEndpoint"`
RelayAddress string `json:"relayAddress" yaml:"relayAddress"`
LastWireguardHandshake time.Time `json:"lastWireguardHandshake" yaml:"lastWireguardHandshake"`
TransferReceived int64 `json:"transferReceived" yaml:"transferReceived"`
TransferSent int64 `json:"transferSent" yaml:"transferSent"`
@ -335,16 +335,18 @@ func mapNSGroups(servers []*proto.NSGroupState) []nsServerGroupStateOutput {
func mapPeers(peers []*proto.PeerState) peersStateOutput {
var peersStateDetail []peerStateDetailOutput
peersConnected := 0
for _, pbPeerState := range peers {
localICE := ""
remoteICE := ""
localICEEndpoint := ""
remoteICEEndpoint := ""
relayServerAddress := ""
connType := ""
peersConnected := 0
lastHandshake := time.Time{}
transferReceived := int64(0)
transferSent := int64(0)
for _, pbPeerState := range peers {
isPeerConnected := pbPeerState.ConnStatus == peer.StatusConnected.String()
if skipDetailByFilters(pbPeerState, isPeerConnected) {
continue
@ -360,6 +362,7 @@ func mapPeers(peers []*proto.PeerState) peersStateOutput {
if pbPeerState.Relayed {
connType = "Relayed"
}
relayServerAddress = pbPeerState.GetRelayAddress()
lastHandshake = pbPeerState.GetLastWireguardHandshake().AsTime().Local()
transferReceived = pbPeerState.GetBytesRx()
transferSent = pbPeerState.GetBytesTx()
@ -372,7 +375,6 @@ func mapPeers(peers []*proto.PeerState) peersStateOutput {
Status: pbPeerState.GetConnStatus(),
LastStatusUpdate: timeLocal,
ConnType: connType,
Direct: pbPeerState.GetDirect(),
IceCandidateType: iceCandidateType{
Local: localICE,
Remote: remoteICE,
@ -381,6 +383,7 @@ func mapPeers(peers []*proto.PeerState) peersStateOutput {
Local: localICEEndpoint,
Remote: remoteICEEndpoint,
},
RelayAddress: relayServerAddress,
FQDN: pbPeerState.GetFqdn(),
LastWireguardHandshake: lastHandshake,
TransferReceived: transferReceived,
@ -641,9 +644,9 @@ func parsePeers(peers peersStateOutput, rosenpassEnabled, rosenpassPermissive bo
" Status: %s\n"+
" -- detail --\n"+
" Connection type: %s\n"+
" Direct: %t\n"+
" ICE candidate (Local/Remote): %s/%s\n"+
" ICE candidate endpoints (Local/Remote): %s/%s\n"+
" Relay server address: %s\n"+
" Last connection update: %s\n"+
" Last WireGuard handshake: %s\n"+
" Transfer status (received/sent) %s/%s\n"+
@ -655,11 +658,11 @@ func parsePeers(peers peersStateOutput, rosenpassEnabled, rosenpassPermissive bo
peerState.PubKey,
peerState.Status,
peerState.ConnType,
peerState.Direct,
localICE,
remoteICE,
localICEEndpoint,
remoteICEEndpoint,
peerState.RelayAddress,
timeAgo(peerState.LastStatusUpdate),
timeAgo(peerState.LastWireguardHandshake),
toIEC(peerState.TransferReceived),

16
client/cmd/status_test.go
View File

@ -37,7 +37,6 @@ var resp = &proto.StatusResponse{
ConnStatus: "Connected",
ConnStatusUpdate: timestamppb.New(time.Date(2001, time.Month(1), 1, 1, 1, 1, 0, time.UTC)),
Relayed: false,
Direct: true,
LocalIceCandidateType: "",
RemoteIceCandidateType: "",
LocalIceCandidateEndpoint: "",
@ -57,7 +56,6 @@ var resp = &proto.StatusResponse{
ConnStatus: "Connected",
ConnStatusUpdate: timestamppb.New(time.Date(2002, time.Month(2), 2, 2, 2, 2, 0, time.UTC)),
Relayed: true,
Direct: false,
LocalIceCandidateType: "relay",
RemoteIceCandidateType: "prflx",
LocalIceCandidateEndpoint: "10.0.0.1:10001",
@ -137,7 +135,6 @@ var overview = statusOutputOverview{
Status: "Connected",
LastStatusUpdate: time.Date(2001, 1, 1, 1, 1, 1, 0, time.UTC),
ConnType: "P2P",
Direct: true,
IceCandidateType: iceCandidateType{
Local: "",
Remote: "",
@ -161,7 +158,6 @@ var overview = statusOutputOverview{
Status: "Connected",
LastStatusUpdate: time.Date(2002, 2, 2, 2, 2, 2, 0, time.UTC),
ConnType: "Relayed",
Direct: false,
IceCandidateType: iceCandidateType{
Local: "relay",
Remote: "prflx",
@ -283,7 +279,6 @@ func TestParsingToJSON(t *testing.T) {
"status": "Connected",
"lastStatusUpdate": "2001-01-01T01:01:01Z",
"connectionType": "P2P",
"direct": true,
"iceCandidateType": {
"local": "",
"remote": ""
@ -292,6 +287,7 @@ func TestParsingToJSON(t *testing.T) {
"local": "",
"remote": ""
},
"relayAddress": "",
"lastWireguardHandshake": "2001-01-01T01:01:02Z",
"transferReceived": 200,
"transferSent": 100,
@ -308,7 +304,6 @@ func TestParsingToJSON(t *testing.T) {
"status": "Connected",
"lastStatusUpdate": "2002-02-02T02:02:02Z",
"connectionType": "Relayed",
"direct": false,
"iceCandidateType": {
"local": "relay",
"remote": "prflx"
@ -317,6 +312,7 @@ func TestParsingToJSON(t *testing.T) {
"local": "10.0.0.1:10001",
"remote": "10.0.10.1:10002"
},
"relayAddress": "",
"lastWireguardHandshake": "2002-02-02T02:02:03Z",
"transferReceived": 2000,
"transferSent": 1000,
@ -408,13 +404,13 @@ func TestParsingToYAML(t *testing.T) {
status: Connected
lastStatusUpdate: 2001-01-01T01:01:01Z
connectionType: P2P
direct: true
iceCandidateType:
local: ""
remote: ""
iceCandidateEndpoint:
local: ""
remote: ""
relayAddress: ""
lastWireguardHandshake: 2001-01-01T01:01:02Z
transferReceived: 200
transferSent: 100
@ -428,13 +424,13 @@ func TestParsingToYAML(t *testing.T) {
status: Connected
lastStatusUpdate: 2002-02-02T02:02:02Z
connectionType: Relayed
direct: false
iceCandidateType:
local: relay
remote: prflx
iceCandidateEndpoint:
local: 10.0.0.1:10001
remote: 10.0.10.1:10002
relayAddress: ""
lastWireguardHandshake: 2002-02-02T02:02:03Z
transferReceived: 2000
transferSent: 1000
@ -505,9 +501,9 @@ func TestParsingToDetail(t *testing.T) {
Status: Connected
-- detail --
Connection type: P2P
Direct: true
ICE candidate (Local/Remote): -/-
ICE candidate endpoints (Local/Remote): -/-
Relay server address:
Last connection update: %s
Last WireGuard handshake: %s
Transfer status (received/sent) 200 B/100 B
@ -521,9 +517,9 @@ func TestParsingToDetail(t *testing.T) {
Status: Connected
-- detail --
Connection type: Relayed
Direct: false
ICE candidate (Local/Remote): relay/prflx
ICE candidate endpoints (Local/Remote): 10.0.0.1:10001/10.0.10.1:10002
Relay server address:
Last connection update: %s
Last WireGuard handshake: %s
Transfer status (received/sent) 2.0 KiB/1000 B

5
client/cmd/testutil_test.go
View File

@ -98,8 +98,9 @@ func startManagement(t *testing.T, config *mgmt.Config) (*grpc.Server, net.Liste
if err != nil {
t.Fatal(err)
}
turnManager := mgmt.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
mgmtServer, err := mgmt.NewServer(context.Background(), config, accountManager, peersUpdateManager, turnManager, nil, nil)
secretsManager := mgmt.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay)
mgmtServer, err := mgmt.NewServer(context.Background(), config, accountManager, peersUpdateManager, secretsManager, nil, nil)
if err != nil {
t.Fatal(err)
}

5
client/cmd/up.go
View File

@ -168,7 +168,10 @@ func runInForegroundMode(ctx context.Context, cmd *cobra.Command) error {
ctx, cancel = context.WithCancel(ctx)
SetupCloseHandler(ctx, cancel)
connectClient := internal.NewConnectClient(ctx, config, peer.NewRecorder(config.ManagementURL.String()))
r := peer.NewRecorder(config.ManagementURL.String())
r.GetFullStatus()
connectClient := internal.NewConnectClient(ctx, config, r)
return connectClient.Run()
}

56
client/internal/connect.go
View File

@ -26,6 +26,8 @@ import (
"github.com/netbirdio/netbird/iface"
mgm "github.com/netbirdio/netbird/management/client"
mgmProto "github.com/netbirdio/netbird/management/proto"
"github.com/netbirdio/netbird/relay/auth/hmac"
relayClient "github.com/netbirdio/netbird/relay/client"
signal "github.com/netbirdio/netbird/signal/client"
"github.com/netbirdio/netbird/util"
"github.com/netbirdio/netbird/version"
@ -158,10 +160,8 @@ func (c *ConnectClient) run(
defer c.statusRecorder.ClientStop()
operation := func() error {
// if context cancelled we not start new backoff cycle
select {
case <-c.ctx.Done():
if c.isContextCancelled() {
return nil
default:
}
state.Set(StatusConnecting)
@ -183,8 +183,7 @@ func (c *ConnectClient) run(
log.Debugf("connected to the Management service %s", c.config.ManagementURL.Host)
defer func() {
err = mgmClient.Close()
if err != nil {
if err = mgmClient.Close(); err != nil {
log.Warnf("failed to close the Management service client %v", err)
}
}()
@ -208,7 +207,6 @@ func (c *ConnectClient) run(
KernelInterface: iface.WireGuardModuleIsLoaded(),
FQDN: loginResp.GetPeerConfig().GetFqdn(),
}
c.statusRecorder.UpdateLocalPeerState(localPeerState)
signalURL := fmt.Sprintf("%s://%s",
@ -241,6 +239,23 @@ func (c *ConnectClient) run(
c.statusRecorder.MarkSignalConnected()
relayURLs, token := parseRelayInfo(loginResp)
relayManager := relayClient.NewManager(engineCtx, relayURLs, myPrivateKey.PublicKey().String())
if len(relayURLs) > 0 {
if token != nil {
if err := relayManager.UpdateToken(token); err != nil {
log.Errorf("failed to update token: %s", err)
return wrapErr(err)
}
}
log.Infof("connecting to the Relay service(s): %s", strings.Join(relayURLs, ", "))
if err = relayManager.Serve(); err != nil {
log.Error(err)
return wrapErr(err)
}
c.statusRecorder.SetRelayMgr(relayManager)
}
peerConfig := loginResp.GetPeerConfig()
engineConfig, err := createEngineConfig(myPrivateKey, c.config, peerConfig)
@ -252,11 +267,11 @@ func (c *ConnectClient) run(
checks := loginResp.GetChecks()
c.engineMutex.Lock()
c.engine = NewEngineWithProbes(engineCtx, cancel, signalClient, mgmClient, engineConfig, mobileDependency, c.statusRecorder, probes, checks)
c.engine = NewEngineWithProbes(engineCtx, cancel, signalClient, mgmClient, relayManager, engineConfig, mobileDependency, c.statusRecorder, probes, checks)
c.engineMutex.Unlock()
err = c.engine.Start()
if err != nil {
if err := c.engine.Start(); err != nil {
log.Errorf("error while starting Netbird Connection Engine: %s", err)
return wrapErr(err)
}
@ -296,6 +311,20 @@ func (c *ConnectClient) run(
return nil
}
func parseRelayInfo(loginResp *mgmProto.LoginResponse) ([]string, *hmac.Token) {
relayCfg := loginResp.GetWiretrusteeConfig().GetRelay()
if relayCfg == nil {
return nil, nil
}
token := &hmac.Token{
Payload: relayCfg.GetTokenPayload(),
Signature: relayCfg.GetTokenSignature(),
}
return relayCfg.GetUrls(), token
}
func (c *ConnectClient) Engine() *Engine {
if c == nil {
return nil
@ -320,6 +349,15 @@ func (c *ConnectClient) Stop() error {
return c.engine.Stop()
}
func (c *ConnectClient) isContextCancelled() bool {
select {
case <-c.ctx.Done():
return true
default:
return false
}
}
// createEngineConfig converts configuration received from Management Service to EngineConfig
func createEngineConfig(key wgtypes.Key, config *Config, peerConfig *mgmProto.PeerConfig) (*EngineConfig, error) {
nm := false

182
client/internal/engine.go
View File

@ -25,6 +25,7 @@ import (
"github.com/netbirdio/netbird/client/firewall/manager"
"github.com/netbirdio/netbird/client/internal/acl"
"github.com/netbirdio/netbird/client/internal/dns"
"github.com/netbirdio/netbird/client/internal/networkmonitor"
"github.com/netbirdio/netbird/client/internal/peer"
"github.com/netbirdio/netbird/client/internal/relay"
@ -40,6 +41,8 @@ import (
mgm "github.com/netbirdio/netbird/management/client"
"github.com/netbirdio/netbird/management/domain"
mgmProto "github.com/netbirdio/netbird/management/proto"
auth "github.com/netbirdio/netbird/relay/auth/hmac"
relayClient "github.com/netbirdio/netbird/relay/client"
"github.com/netbirdio/netbird/route"
signal "github.com/netbirdio/netbird/signal/client"
sProto "github.com/netbirdio/netbird/signal/proto"
@ -103,6 +106,7 @@ type EngineConfig struct {
type Engine struct {
// signal is a Signal Service client
signal signal.Client
signaler *peer.Signaler
// mgmClient is a Management Service client
mgmClient mgm.Client
// peerConns is a map that holds all the peers that are known to this peer
@ -159,10 +163,10 @@ type Engine struct {
probes *ProbeHolder
wgConnWorker sync.WaitGroup
// checks are the client-applied posture checks that need to be evaluated on the client
checks []*mgmProto.Checks
relayManager *relayClient.Manager
}
// Peer is an instance of the Connection Peer
@ -177,6 +181,7 @@ func NewEngine(
clientCancel context.CancelFunc,
signalClient signal.Client,
mgmClient mgm.Client,
relayManager *relayClient.Manager,
config *EngineConfig,
mobileDep MobileDependency,
statusRecorder *peer.Status,
@ -187,6 +192,7 @@ func NewEngine(
clientCancel,
signalClient,
mgmClient,
relayManager,
config,
mobileDep,
statusRecorder,
@ -201,18 +207,20 @@ func NewEngineWithProbes(
clientCancel context.CancelFunc,
signalClient signal.Client,
mgmClient mgm.Client,
relayManager *relayClient.Manager,
config *EngineConfig,
mobileDep MobileDependency,
statusRecorder *peer.Status,
probes *ProbeHolder,
checks []*mgmProto.Checks,
) *Engine {
return &Engine{
clientCtx: clientCtx,
clientCancel: clientCancel,
signal: signalClient,
signaler: peer.NewSignaler(signalClient, config.WgPrivateKey),
mgmClient: mgmClient,
relayManager: relayManager,
peerConns: make(map[string]*peer.Conn),
syncMsgMux: &sync.Mutex{},
config: config,
@ -260,11 +268,7 @@ func (e *Engine) Stop() error {
time.Sleep(500 * time.Millisecond)
e.close()
e.wgConnWorker.Wait()
log.Infof("Engine stopped")
log.Infof("stopped Netbird Engine")
return nil
}
@ -314,7 +318,7 @@ func (e *Engine) Start() error {
}
e.dnsServer = dnsServer
e.routeManager = routemanager.NewManager(e.ctx, e.config.WgPrivateKey.PublicKey().String(), e.config.DNSRouteInterval, e.wgInterface, e.statusRecorder, initialRoutes)
e.routeManager = routemanager.NewManager(e.ctx, e.config.WgPrivateKey.PublicKey().String(), e.config.DNSRouteInterval, e.wgInterface, e.statusRecorder, e.relayManager, initialRoutes)
beforePeerHook, afterPeerHook, err := e.routeManager.Init()
if err != nil {
log.Errorf("Failed to initialize route manager: %s", err)
@ -463,62 +467,8 @@ func (e *Engine) removePeer(peerKey string) error {
conn, exists := e.peerConns[peerKey]
if exists {
delete(e.peerConns, peerKey)
err := conn.Close()
if err != nil {
switch err.(type) {
case *peer.ConnectionAlreadyClosedError:
return nil
default:
return err
conn.Close()
}
}
}
return nil
}
func signalCandidate(candidate ice.Candidate, myKey wgtypes.Key, remoteKey wgtypes.Key, s signal.Client) error {
err := s.Send(&sProto.Message{
Key: myKey.PublicKey().String(),
RemoteKey: remoteKey.String(),
Body: &sProto.Body{
Type: sProto.Body_CANDIDATE,
Payload: candidate.Marshal(),
},
})
if err != nil {
return err
}
return nil
}
func sendSignal(message *sProto.Message, s signal.Client) error {
return s.Send(message)
}
// SignalOfferAnswer signals either an offer or an answer to remote peer
func SignalOfferAnswer(offerAnswer peer.OfferAnswer, myKey wgtypes.Key, remoteKey wgtypes.Key, s signal.Client,
isAnswer bool) error {
var t sProto.Body_Type
if isAnswer {
t = sProto.Body_ANSWER
} else {
t = sProto.Body_OFFER
}
msg, err := signal.MarshalCredential(myKey, offerAnswer.WgListenPort, remoteKey, &signal.Credential{
UFrag: offerAnswer.IceCredentials.UFrag,
Pwd: offerAnswer.IceCredentials.Pwd,
}, t, offerAnswer.RosenpassPubKey, offerAnswer.RosenpassAddr)
if err != nil {
return err
}
err = s.Send(msg)
if err != nil {
return err
}
return nil
}
@ -527,14 +477,15 @@ func (e *Engine) handleSync(update *mgmProto.SyncResponse) error {
defer e.syncMsgMux.Unlock()
if update.GetWiretrusteeConfig() != nil {
err := e.updateTURNs(update.GetWiretrusteeConfig().GetTurns())
wCfg := update.GetWiretrusteeConfig()
err := e.updateTURNs(wCfg.GetTurns())
if err != nil {
return err
return fmt.Errorf("update TURNs: %w", err)
}
err = e.updateSTUNs(update.GetWiretrusteeConfig().GetStuns())
err = e.updateSTUNs(wCfg.GetStuns())
if err != nil {
return err
return fmt.Errorf("update STUNs: %w", err)
}
var stunTurn []*stun.URI
@ -542,6 +493,19 @@ func (e *Engine) handleSync(update *mgmProto.SyncResponse) error {
stunTurn = append(stunTurn, e.TURNs...)
e.stunTurn.Store(stunTurn)
relayMsg := wCfg.GetRelay()
if relayMsg != nil {
c := &auth.Token{
Payload: relayMsg.GetTokenPayload(),
Signature: relayMsg.GetTokenSignature(),
}
if err := e.relayManager.UpdateToken(c); err != nil {
log.Errorf("failed to update relay token: %v", err)
return fmt.Errorf("update relay token: %w", err)
}
}
// todo update relay address in the relay manager
// todo update signal
}
@ -937,58 +901,11 @@ func (e *Engine) addNewPeer(peerConfig *mgmProto.RemotePeerConfig) error {
log.Warnf("error adding peer %s to status recorder, got error: %v", peerKey, err)
}
e.wgConnWorker.Add(1)
go e.connWorker(conn, peerKey)
conn.Open()
}
return nil
}
func (e *Engine) connWorker(conn *peer.Conn, peerKey string) {
defer e.wgConnWorker.Done()
for {
// randomize starting time a bit
minValue := 500
maxValue := 2000
duration := time.Duration(rand.Intn(maxValue-minValue)+minValue) * time.Millisecond
select {
case <-e.ctx.Done():
return
case <-time.After(duration):
}
// if peer has been removed -> give up
if !e.peerExists(peerKey) {
log.Debugf("peer %s doesn't exist anymore, won't retry connection", peerKey)
return
}
if !e.signal.Ready() {
log.Infof("signal client isn't ready, skipping connection attempt %s", peerKey)
continue
}
err := conn.Open(e.ctx)
if err != nil {
log.Debugf("connection to peer %s failed: %v", peerKey, err)
var connectionClosedError *peer.ConnectionClosedError
switch {
case errors.As(err, &connectionClosedError):
// conn has been forced to close, so we exit the loop
return
default:
}
}
}
}
func (e *Engine) peerExists(peerKey string) bool {
e.syncMsgMux.Lock()
defer e.syncMsgMux.Unlock()
_, ok := e.peerConns[peerKey]
return ok
}
func (e *Engine) createPeerConn(pubKey string, allowedIPs string) (*peer.Conn, error) {
log.Debugf("creating peer connection %s", pubKey)
@ -1040,37 +957,12 @@ func (e *Engine) createPeerConn(pubKey string, allowedIPs string) (*peer.Conn, e
},
}
peerConn, err := peer.NewConn(config, e.statusRecorder, e.wgProxyFactory, e.mobileDep.TunAdapter, e.mobileDep.IFaceDiscover)
peerConn, err := peer.NewConn(e.ctx, config, e.statusRecorder, e.wgProxyFactory, e.signaler, e.mobileDep.IFaceDiscover, e.relayManager)
if err != nil {
return nil, err
}
wgPubKey, err := wgtypes.ParseKey(pubKey)
if err != nil {
return nil, err
}
signalOffer := func(offerAnswer peer.OfferAnswer) error {
return SignalOfferAnswer(offerAnswer, e.config.WgPrivateKey, wgPubKey, e.signal, false)
}
signalCandidate := func(candidate ice.Candidate) error {
return signalCandidate(candidate, e.config.WgPrivateKey, wgPubKey, e.signal)
}
signalAnswer := func(offerAnswer peer.OfferAnswer) error {
return SignalOfferAnswer(offerAnswer, e.config.WgPrivateKey, wgPubKey, e.signal, true)
}
peerConn.SetSignalCandidate(signalCandidate)
peerConn.SetSignalOffer(signalOffer)
peerConn.SetSignalAnswer(signalAnswer)
peerConn.SetSendSignalMessage(func(message *sProto.Message) error {
return sendSignal(message, e.signal)
})
if e.rpManager != nil {
peerConn.SetOnConnected(e.rpManager.OnConnected)
peerConn.SetOnDisconnected(e.rpManager.OnDisconnected)
}
@ -1113,6 +1005,7 @@ func (e *Engine) receiveSignalEvents() {
Version: msg.GetBody().GetNetBirdVersion(),
RosenpassPubKey: rosenpassPubKey,
RosenpassAddr: rosenpassAddr,
RelaySrvAddress: msg.GetBody().GetRelayServerAddress(),
})
case sProto.Body_ANSWER:
remoteCred, err := signal.UnMarshalCredential(msg)
@ -1135,6 +1028,7 @@ func (e *Engine) receiveSignalEvents() {
Version: msg.GetBody().GetNetBirdVersion(),
RosenpassPubKey: rosenpassPubKey,
RosenpassAddr: rosenpassAddr,
RelaySrvAddress: msg.GetBody().GetRelayServerAddress(),
})
case sProto.Body_CANDIDATE:
candidate, err := ice.UnmarshalCandidate(msg.GetBody().Payload)
@ -1143,7 +1037,7 @@ func (e *Engine) receiveSignalEvents() {
return err
}
conn.OnRemoteCandidate(candidate, e.GetClientRoutes())
go conn.OnRemoteCandidate(candidate, e.GetClientRoutes())
case sProto.Body_MODE:
}
@ -1442,7 +1336,7 @@ func (e *Engine) receiveProbeEvents() {
for _, peer := range e.peerConns {
key := peer.GetKey()
wgStats, err := peer.GetConf().WgConfig.WgInterface.GetStats(key)
wgStats, err := peer.WgConfig().WgInterface.GetStats(key)
if err != nil {
log.Debugf("failed to get wg stats for peer %s: %s", key, err)
}

59
client/internal/engine_test.go
View File

@ -38,6 +38,7 @@ import (
"github.com/netbirdio/netbird/management/server"
"github.com/netbirdio/netbird/management/server/activity"
"github.com/netbirdio/netbird/management/server/telemetry"
relayClient "github.com/netbirdio/netbird/relay/client"
"github.com/netbirdio/netbird/route"
signal "github.com/netbirdio/netbird/signal/client"
"github.com/netbirdio/netbird/signal/proto"
@ -59,6 +60,12 @@ var (
}
)
func TestMain(m *testing.M) {
_ = util.InitLog("debug", "console")
code := m.Run()
os.Exit(code)
}
func TestEngine_SSH(t *testing.T) {
// todo resolve test execution on freebsd
if runtime.GOOS == "windows" || runtime.GOOS == "freebsd" {
@ -74,13 +81,23 @@ func TestEngine_SSH(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
engine := NewEngine(
ctx, cancel,
&signal.MockClient{},
&mgmt.MockClient{},
relayMgr,
&EngineConfig{
WgIfaceName: "utun101",
WgAddr: "100.64.0.1/24",
WgPrivateKey: key,
WgPort: 33100,
ServerSSHAllowed: true,
}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil)
},
MobileDependency{},
peer.NewRecorder("https://mgm"),
nil,
)
engine.dnsServer = &dns.MockServer{
UpdateDNSServerFunc: func(serial uint64, update nbdns.Config) error { return nil },
@ -209,12 +226,21 @@ func TestEngine_UpdateNetworkMap(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
engine := NewEngine(
ctx, cancel,
&signal.MockClient{},
&mgmt.MockClient{},
relayMgr,
&EngineConfig{
WgIfaceName: "utun102",
WgAddr: "100.64.0.1/24",
WgPrivateKey: key,
WgPort: 33100,
}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil)
},
MobileDependency{},
peer.NewRecorder("https://mgm"),
nil)
wgIface := &iface.MockWGIface{
RemovePeerFunc: func(peerKey string) error {
@ -222,7 +248,7 @@ func TestEngine_UpdateNetworkMap(t *testing.T) {
},
}
engine.wgInterface = wgIface
engine.routeManager = routemanager.NewManager(ctx, key.PublicKey().String(), time.Minute, engine.wgInterface, engine.statusRecorder, nil)
engine.routeManager = routemanager.NewManager(ctx, key.PublicKey().String(), time.Minute, engine.wgInterface, engine.statusRecorder, relayMgr, nil)
engine.dnsServer = &dns.MockServer{
UpdateDNSServerFunc: func(serial uint64, update nbdns.Config) error { return nil },
}
@ -404,8 +430,8 @@ func TestEngine_Sync(t *testing.T) {
}
return nil
}
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{SyncFunc: syncFunc}, &EngineConfig{
relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{SyncFunc: syncFunc}, relayMgr, &EngineConfig{
WgIfaceName: "utun103",
WgAddr: "100.64.0.1/24",
WgPrivateKey: key,
@ -564,7 +590,8 @@ func TestEngine_UpdateNetworkMapWithRoutes(t *testing.T) {
wgIfaceName := fmt.Sprintf("utun%d", 104+n)
wgAddr := fmt.Sprintf("100.66.%d.1/24", n)
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, relayMgr, &EngineConfig{
WgIfaceName: wgIfaceName,
WgAddr: wgAddr,
WgPrivateKey: key,
@ -734,7 +761,8 @@ func TestEngine_UpdateNetworkMapWithDNSUpdate(t *testing.T) {
wgIfaceName := fmt.Sprintf("utun%d", 104+n)
wgAddr := fmt.Sprintf("100.66.%d.1/24", n)
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, relayMgr, &EngineConfig{
WgIfaceName: wgIfaceName,
WgAddr: wgAddr,
WgPrivateKey: key,
@ -1012,7 +1040,8 @@ func createEngine(ctx context.Context, cancel context.CancelFunc, setupKey strin
WgPort: wgPort,
}
e, err := NewEngine(ctx, cancel, signalClient, mgmtClient, conf, MobileDependency{}, peer.NewRecorder("https://mgm"), nil), nil
relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
e, err := NewEngine(ctx, cancel, signalClient, mgmtClient, relayMgr, conf, MobileDependency{}, peer.NewRecorder("https://mgm"), nil), nil
e.ctx = ctx
return e, err
}
@ -1046,6 +1075,11 @@ func startManagement(t *testing.T, dataDir string) (*grpc.Server, string, error)
config := &server.Config{
Stuns: []*server.Host{},
TURNConfig: &server.TURNConfig{},
Relay: &server.Relay{
Addresses: []string{"127.0.0.1:1234"},
CredentialsTTL: util.Duration{Duration: time.Hour},
Secret: "222222222222222222",
},
Signal: &server.Host{
Proto: "http",
URI: "localhost:10000",
@ -1080,8 +1114,9 @@ func startManagement(t *testing.T, dataDir string) (*grpc.Server, string, error)
if err != nil {
return nil, "", err
}
turnManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
mgmtServer, err := server.NewServer(context.Background(), config, accountManager, peersUpdateManager, turnManager, nil, nil)
secretsManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay)
mgmtServer, err := server.NewServer(context.Background(), config, accountManager, peersUpdateManager, secretsManager, nil, nil)
if err != nil {
return nil, "", err
}

1288
client/internal/peer/conn.go
View File

File diff suppressed because it is too large Load Diff

67
client/internal/peer/conn_test.go
View File

@ -2,6 +2,7 @@ package peer
import (
"context"
"os"
"sync"
"testing"
"time"
@ -11,6 +12,7 @@ import (
"github.com/netbirdio/netbird/client/internal/stdnet"
"github.com/netbirdio/netbird/client/internal/wgproxy"
"github.com/netbirdio/netbird/iface"
"github.com/netbirdio/netbird/util"
)
var connConf = ConnConfig{
@ -23,6 +25,12 @@ var connConf = ConnConfig{
},
}
func TestMain(m *testing.M) {
_ = util.InitLog("trace", "console")
code := m.Run()
os.Exit(code)
}
func TestNewConn_interfaceFilter(t *testing.T) {
ignore := []string{iface.WgInterfaceDefault, "tun0", "zt", "ZeroTier", "utun", "wg", "ts",
"Tailscale", "tailscale"}
@ -40,7 +48,7 @@ func TestConn_GetKey(t *testing.T) {
defer func() {
_ = wgProxyFactory.Free()
}()
conn, err := NewConn(connConf, nil, wgProxyFactory, nil, nil)
conn, err := NewConn(context.Background(), connConf, nil, wgProxyFactory, nil, nil, nil)
if err != nil {
return
}
@ -55,7 +63,7 @@ func TestConn_OnRemoteOffer(t *testing.T) {
defer func() {
_ = wgProxyFactory.Free()
}()
conn, err := NewConn(connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil)
conn, err := NewConn(context.Background(), connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil, nil)
if err != nil {
return
}
@ -63,7 +71,7 @@ func TestConn_OnRemoteOffer(t *testing.T) {
wg := sync.WaitGroup{}
wg.Add(2)
go func() {
<-conn.remoteOffersCh
<-conn.handshaker.remoteOffersCh
wg.Done()
}()
@ -92,7 +100,7 @@ func TestConn_OnRemoteAnswer(t *testing.T) {
defer func() {
_ = wgProxyFactory.Free()
}()
conn, err := NewConn(connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil)
conn, err := NewConn(context.Background(), connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil, nil)
if err != nil {
return
}
@ -100,7 +108,7 @@ func TestConn_OnRemoteAnswer(t *testing.T) {
wg := sync.WaitGroup{}
wg.Add(2)
go func() {
<-conn.remoteAnswerCh
<-conn.handshaker.remoteAnswerCh
wg.Done()
}()
@ -128,58 +136,33 @@ func TestConn_Status(t *testing.T) {
defer func() {
_ = wgProxyFactory.Free()
}()
conn, err := NewConn(connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil)
conn, err := NewConn(context.Background(), connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil, nil)
if err != nil {
return
}
tables := []struct {
name string
status ConnStatus
statusIce ConnStatus
statusRelay ConnStatus
want ConnStatus
}{
{"StatusConnected", StatusConnected, StatusConnected},
{"StatusDisconnected", StatusDisconnected, StatusDisconnected},
{"StatusConnecting", StatusConnecting, StatusConnecting},
{"StatusConnected", StatusConnected, StatusConnected, StatusConnected},
{"StatusDisconnected", StatusDisconnected, StatusDisconnected, StatusDisconnected},
{"StatusConnecting", StatusConnecting, StatusConnecting, StatusConnecting},
{"StatusConnectingIce", StatusConnecting, StatusDisconnected, StatusConnecting},
{"StatusConnectingIceAlternative", StatusConnecting, StatusConnected, StatusConnected},
{"StatusConnectingRelay", StatusDisconnected, StatusConnecting, StatusConnecting},
{"StatusConnectingRelayAlternative", StatusConnected, StatusConnecting, StatusConnected},
}
for _, table := range tables {
t.Run(table.name, func(t *testing.T) {
conn.status = table.status
conn.statusICE = table.statusIce
conn.statusRelay = table.statusRelay
got := conn.Status()
assert.Equal(t, got, table.want, "they should be equal")
})
}
}
func TestConn_Close(t *testing.T) {
wgProxyFactory := wgproxy.NewFactory(context.Background(), false, connConf.LocalWgPort)
defer func() {
_ = wgProxyFactory.Free()
}()
conn, err := NewConn(connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil)
if err != nil {
return
}
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
<-conn.closeCh
wg.Done()
}()
go func() {
for {
err := conn.Close()
if err != nil {
continue
} else {
return
}
}
}()
wg.Wait()
}

192
client/internal/peer/handshaker.go Normal file
View File

@ -0,0 +1,192 @@
package peer
import (
"context"
"errors"
"sync"
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/version"
)
var (
ErrSignalIsNotReady = errors.New("signal is not ready")
)
// IceCredentials ICE protocol credentials struct
type IceCredentials struct {
UFrag string
Pwd string
}
// OfferAnswer represents a session establishment offer or answer
type OfferAnswer struct {
IceCredentials IceCredentials
// WgListenPort is a remote WireGuard listen port.
// This field is used when establishing a direct WireGuard connection without any proxy.
// We can set the remote peer's endpoint with this port.
WgListenPort int
// Version of NetBird Agent
Version string
// RosenpassPubKey is the Rosenpass public key of the remote peer when receiving this message
// This value is the local Rosenpass server public key when sending the message
RosenpassPubKey []byte
// RosenpassAddr is the Rosenpass server address (IP:port) of the remote peer when receiving this message
// This value is the local Rosenpass server address when sending the message
RosenpassAddr string
// relay server address
RelaySrvAddress string
}
type Handshaker struct {
mu sync.Mutex
ctx context.Context
log *log.Entry
config ConnConfig
signaler *Signaler
ice *WorkerICE
relay *WorkerRelay
onNewOfferListeners []func(*OfferAnswer)
// remoteOffersCh is a channel used to wait for remote credentials to proceed with the connection
remoteOffersCh chan OfferAnswer
// remoteAnswerCh is a channel used to wait for remote credentials answer (confirmation of our offer) to proceed with the connection
remoteAnswerCh chan OfferAnswer
}
func NewHandshaker(ctx context.Context, log *log.Entry, config ConnConfig, signaler *Signaler, ice *WorkerICE, relay *WorkerRelay) *Handshaker {
return &Handshaker{
ctx: ctx,
log: log,
config: config,
signaler: signaler,
ice: ice,
relay: relay,
remoteOffersCh: make(chan OfferAnswer),
remoteAnswerCh: make(chan OfferAnswer),
}
}
func (h *Handshaker) AddOnNewOfferListener(offer func(remoteOfferAnswer *OfferAnswer)) {
h.onNewOfferListeners = append(h.onNewOfferListeners, offer)
}
func (h *Handshaker) Listen() {
for {
h.log.Debugf("wait for remote offer confirmation")
remoteOfferAnswer, err := h.waitForRemoteOfferConfirmation()
if err != nil {
var connectionClosedError *ConnectionClosedError
if errors.As(err, &connectionClosedError) {
h.log.Tracef("stop handshaker")
return
}
h.log.Errorf("failed to received remote offer confirmation: %s", err)
continue
}
h.log.Debugf("received connection confirmation, running version %s and with remote WireGuard listen port %d", remoteOfferAnswer.Version, remoteOfferAnswer.WgListenPort)
for _, listener := range h.onNewOfferListeners {
go listener(remoteOfferAnswer)
}
}
}
func (h *Handshaker) SendOffer() error {
h.mu.Lock()
defer h.mu.Unlock()
return h.sendOffer()
}
// OnRemoteOffer handles an offer from the remote peer and returns true if the message was accepted, false otherwise
// doesn't block, discards the message if connection wasn't ready
func (h *Handshaker) OnRemoteOffer(offer OfferAnswer) bool {
select {
case h.remoteOffersCh <- offer:
return true
default:
h.log.Debugf("OnRemoteOffer skipping message because is not ready")
// connection might not be ready yet to receive so we ignore the message
return false
}
}
// OnRemoteAnswer handles an offer from the remote peer and returns true if the message was accepted, false otherwise
// doesn't block, discards the message if connection wasn't ready
func (h *Handshaker) OnRemoteAnswer(answer OfferAnswer) bool {
select {
case h.remoteAnswerCh <- answer:
return true
default:
// connection might not be ready yet to receive so we ignore the message
h.log.Debugf("OnRemoteAnswer skipping message because is not ready")
return false
}
}
func (h *Handshaker) waitForRemoteOfferConfirmation() (*OfferAnswer, error) {
select {
case remoteOfferAnswer := <-h.remoteOffersCh:
// received confirmation from the remote peer -> ready to proceed
err := h.sendAnswer()
if err != nil {
return nil, err
}
return &remoteOfferAnswer, nil
case remoteOfferAnswer := <-h.remoteAnswerCh:
return &remoteOfferAnswer, nil
case <-h.ctx.Done():
// closed externally
return nil, NewConnectionClosedError(h.config.Key)
}
}
// sendOffer prepares local user credentials and signals them to the remote peer
func (h *Handshaker) sendOffer() error {
if !h.signaler.Ready() {
return ErrSignalIsNotReady
}
iceUFrag, icePwd := h.ice.GetLocalUserCredentials()
offer := OfferAnswer{
IceCredentials: IceCredentials{iceUFrag, icePwd},
WgListenPort: h.config.LocalWgPort,
Version: version.NetbirdVersion(),
RosenpassPubKey: h.config.RosenpassPubKey,
RosenpassAddr: h.config.RosenpassAddr,
}
addr, err := h.relay.RelayInstanceAddress()
if err == nil {
offer.RelaySrvAddress = addr
}
return h.signaler.SignalOffer(offer, h.config.Key)
}
func (h *Handshaker) sendAnswer() error {
h.log.Debugf("sending answer")
uFrag, pwd := h.ice.GetLocalUserCredentials()
answer := OfferAnswer{
IceCredentials: IceCredentials{uFrag, pwd},
WgListenPort: h.config.LocalWgPort,
Version: version.NetbirdVersion(),
RosenpassPubKey: h.config.RosenpassPubKey,
RosenpassAddr: h.config.RosenpassAddr,
}
addr, err := h.relay.RelayInstanceAddress()
if err == nil {
answer.RelaySrvAddress = addr
}
err = h.signaler.SignalAnswer(answer, h.config.Key)
if err != nil {
return err
}
return nil
}

70
client/internal/peer/signaler.go Normal file
View File

@ -0,0 +1,70 @@
package peer
import (
"github.com/pion/ice/v3"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
signal "github.com/netbirdio/netbird/signal/client"
sProto "github.com/netbirdio/netbird/signal/proto"
)
type Signaler struct {
signal signal.Client
wgPrivateKey wgtypes.Key
}
func NewSignaler(signal signal.Client, wgPrivateKey wgtypes.Key) *Signaler {
return &Signaler{
signal: signal,
wgPrivateKey: wgPrivateKey,
}
}
func (s *Signaler) SignalOffer(offer OfferAnswer, remoteKey string) error {
return s.signalOfferAnswer(offer, remoteKey, sProto.Body_OFFER)
}
func (s *Signaler) SignalAnswer(offer OfferAnswer, remoteKey string) error {
return s.signalOfferAnswer(offer, remoteKey, sProto.Body_ANSWER)
}
func (s *Signaler) SignalICECandidate(candidate ice.Candidate, remoteKey string) error {
return s.signal.Send(&sProto.Message{
Key: s.wgPrivateKey.PublicKey().String(),
RemoteKey: remoteKey,
Body: &sProto.Body{
Type: sProto.Body_CANDIDATE,
Payload: candidate.Marshal(),
},
})
}
func (s *Signaler) Ready() bool {
return s.signal.Ready()
}
// SignalOfferAnswer signals either an offer or an answer to remote peer
func (s *Signaler) signalOfferAnswer(offerAnswer OfferAnswer, remoteKey string, bodyType sProto.Body_Type) error {
msg, err := signal.MarshalCredential(
s.wgPrivateKey,
offerAnswer.WgListenPort,
remoteKey,
&signal.Credential{
UFrag: offerAnswer.IceCredentials.UFrag,
Pwd: offerAnswer.IceCredentials.Pwd,
},
bodyType,
offerAnswer.RosenpassPubKey,
offerAnswer.RosenpassAddr,
offerAnswer.RelaySrvAddress)
if err != nil {
return err
}
err = s.signal.Send(msg)
if err != nil {
return err
}
return nil
}

192
client/internal/peer/status.go
View File

@ -3,6 +3,7 @@ package peer
import (
"errors"
"net/netip"
"slices"
"sync"
"time"
@ -13,6 +14,7 @@ import (
"github.com/netbirdio/netbird/client/internal/relay"
"github.com/netbirdio/netbird/iface"
"github.com/netbirdio/netbird/management/domain"
relayClient "github.com/netbirdio/netbird/relay/client"
)
// State contains the latest state of a peer
@ -24,11 +26,11 @@ type State struct {
ConnStatus ConnStatus
ConnStatusUpdate time.Time
Relayed bool
Direct bool
LocalIceCandidateType string
RemoteIceCandidateType string
LocalIceCandidateEndpoint string
RemoteIceCandidateEndpoint string
RelayServerAddress string
LastWireguardHandshake time.Time
BytesTx int64
BytesRx int64
@ -142,6 +144,8 @@ type Status struct {
// Some Peer actions mostly used by in a batch when the network map has been synchronized. In these type of events
// set to true this variable and at the end of the processing we will reset it by the FinishPeerListModifications()
peerListChangedForNotification bool
relayMgr *relayClient.Manager
}
// NewRecorder returns a new Status instance
@ -156,6 +160,12 @@ func NewRecorder(mgmAddress string) *Status {
}
}
func (d *Status) SetRelayMgr(manager *relayClient.Manager) {
d.mux.Lock()
defer d.mux.Unlock()
d.relayMgr = manager
}
// ReplaceOfflinePeers replaces
func (d *Status) ReplaceOfflinePeers(replacement []State) {
d.mux.Lock()
@ -231,20 +241,160 @@ func (d *Status) UpdatePeerState(receivedState State) error {
peerState.SetRoutes(receivedState.GetRoutes())
}
skipNotification := shouldSkipNotify(receivedState, peerState)
skipNotification := shouldSkipNotify(receivedState.ConnStatus, peerState)
if receivedState.ConnStatus != peerState.ConnStatus {
peerState.ConnStatus = receivedState.ConnStatus
peerState.ConnStatusUpdate = receivedState.ConnStatusUpdate
peerState.Direct = receivedState.Direct
peerState.Relayed = receivedState.Relayed
peerState.LocalIceCandidateType = receivedState.LocalIceCandidateType
peerState.RemoteIceCandidateType = receivedState.RemoteIceCandidateType
peerState.LocalIceCandidateEndpoint = receivedState.LocalIceCandidateEndpoint
peerState.RemoteIceCandidateEndpoint = receivedState.RemoteIceCandidateEndpoint
peerState.RelayServerAddress = receivedState.RelayServerAddress
peerState.RosenpassEnabled = receivedState.RosenpassEnabled
}
d.peers[receivedState.PubKey] = peerState
if skipNotification {
return nil
}
ch, found := d.changeNotify[receivedState.PubKey]
if found && ch != nil {
close(ch)
d.changeNotify[receivedState.PubKey] = nil
}
d.notifyPeerListChanged()
return nil
}
func (d *Status) UpdatePeerICEState(receivedState State) error {
d.mux.Lock()
defer d.mux.Unlock()
peerState, ok := d.peers[receivedState.PubKey]
if !ok {
return errors.New("peer doesn't exist")
}
if receivedState.IP != "" {
peerState.IP = receivedState.IP
}
skipNotification := shouldSkipNotify(receivedState.ConnStatus, peerState)
peerState.ConnStatus = receivedState.ConnStatus
peerState.ConnStatusUpdate = receivedState.ConnStatusUpdate
peerState.Relayed = receivedState.Relayed
peerState.LocalIceCandidateType = receivedState.LocalIceCandidateType
peerState.RemoteIceCandidateType = receivedState.RemoteIceCandidateType
peerState.LocalIceCandidateEndpoint = receivedState.LocalIceCandidateEndpoint
peerState.RemoteIceCandidateEndpoint = receivedState.RemoteIceCandidateEndpoint
peerState.RosenpassEnabled = receivedState.RosenpassEnabled
d.peers[receivedState.PubKey] = peerState
if skipNotification {
return nil
}
ch, found := d.changeNotify[receivedState.PubKey]
if found && ch != nil {
close(ch)
d.changeNotify[receivedState.PubKey] = nil
}
d.notifyPeerListChanged()
return nil
}
func (d *Status) UpdatePeerRelayedState(receivedState State) error {
d.mux.Lock()
defer d.mux.Unlock()
peerState, ok := d.peers[receivedState.PubKey]
if !ok {
return errors.New("peer doesn't exist")
}
skipNotification := shouldSkipNotify(receivedState.ConnStatus, peerState)
peerState.ConnStatus = receivedState.ConnStatus
peerState.ConnStatusUpdate = receivedState.ConnStatusUpdate
peerState.Relayed = receivedState.Relayed
peerState.RelayServerAddress = receivedState.RelayServerAddress
peerState.RosenpassEnabled = receivedState.RosenpassEnabled
d.peers[receivedState.PubKey] = peerState
if skipNotification {
return nil
}
ch, found := d.changeNotify[receivedState.PubKey]
if found && ch != nil {
close(ch)
d.changeNotify[receivedState.PubKey] = nil
}
d.notifyPeerListChanged()
return nil
}
func (d *Status) UpdatePeerRelayedStateToDisconnected(receivedState State) error {
d.mux.Lock()
defer d.mux.Unlock()
peerState, ok := d.peers[receivedState.PubKey]
if !ok {
return errors.New("peer doesn't exist")
}
skipNotification := shouldSkipNotify(receivedState.ConnStatus, peerState)
peerState.ConnStatus = receivedState.ConnStatus
peerState.Relayed = receivedState.Relayed
peerState.ConnStatusUpdate = receivedState.ConnStatusUpdate
peerState.RelayServerAddress = ""
d.peers[receivedState.PubKey] = peerState
if skipNotification {
return nil
}
ch, found := d.changeNotify[receivedState.PubKey]
if found && ch != nil {
close(ch)
d.changeNotify[receivedState.PubKey] = nil
}
d.notifyPeerListChanged()
return nil
}
func (d *Status) UpdatePeerICEStateToDisconnected(receivedState State) error {
d.mux.Lock()
defer d.mux.Unlock()
peerState, ok := d.peers[receivedState.PubKey]
if !ok {
return errors.New("peer doesn't exist")
}
skipNotification := shouldSkipNotify(receivedState.ConnStatus, peerState)
peerState.ConnStatus = receivedState.ConnStatus
peerState.Relayed = receivedState.Relayed
peerState.ConnStatusUpdate = receivedState.ConnStatusUpdate
peerState.LocalIceCandidateType = receivedState.LocalIceCandidateType
peerState.RemoteIceCandidateType = receivedState.RemoteIceCandidateType
peerState.LocalIceCandidateEndpoint = receivedState.LocalIceCandidateEndpoint
peerState.RemoteIceCandidateEndpoint = receivedState.RemoteIceCandidateEndpoint
d.peers[receivedState.PubKey] = peerState
if skipNotification {
@ -280,13 +430,13 @@ func (d *Status) UpdateWireGuardPeerState(pubKey string, wgStats iface.WGStats)
return nil
}
func shouldSkipNotify(received, curr State) bool {
func shouldSkipNotify(receivedConnStatus ConnStatus, curr State) bool {
switch {
case received.ConnStatus == StatusConnecting:
case receivedConnStatus == StatusConnecting:
return true
case received.ConnStatus == StatusDisconnected && curr.ConnStatus == StatusConnecting:
case receivedConnStatus == StatusDisconnected && curr.ConnStatus == StatusConnecting:
return true
case received.ConnStatus == StatusDisconnected && curr.ConnStatus == StatusDisconnected:
case receivedConnStatus == StatusDisconnected && curr.ConnStatus == StatusDisconnected:
return curr.IP != ""
default:
return false
@ -502,10 +652,37 @@ func (d *Status) GetSignalState() SignalState {
}
}
// GetRelayStates returns the stun/turn/permanent relay states
func (d *Status) GetRelayStates() []relay.ProbeResult {
if d.relayMgr == nil {
return d.relayStates
}
// extend the list of stun, turn servers with relay address
relayStates := slices.Clone(d.relayStates)
var relayState relay.ProbeResult
// if the server connection is not established then we will use the general address
// in case of connection we will use the instance specific address
instanceAddr, err := d.relayMgr.RelayInstanceAddress()
if err != nil {
// TODO add their status
if errors.Is(err, relayClient.ErrRelayClientNotConnected) {
for _, r := range d.relayMgr.ServerURLs() {
relayStates = append(relayStates, relay.ProbeResult{
URI: r,
})
}
return relayStates
}
relayState.Err = err
}
relayState.URI = instanceAddr
return append(relayStates, relayState)
}
func (d *Status) GetDNSStates() []NSGroupState {
return d.nsGroupStates
}
@ -535,7 +712,6 @@ func (d *Status) GetFullStatus() FullStatus {
}
fullStatus.Peers = append(fullStatus.Peers, d.offlinePeers...)
return fullStatus
}

2
client/internal/peer/status_test.go
View File

@ -2,8 +2,8 @@ package peer
import (
"errors"
"testing"
"sync"
"testing"
"github.com/stretchr/testify/assert"
)

4
client/internal/peer/stdnet.go
View File

@ -6,6 +6,6 @@ import (
"github.com/netbirdio/netbird/client/internal/stdnet"
)
func (conn *Conn) newStdNet() (*stdnet.Net, error) {
return stdnet.NewNet(conn.config.ICEConfig.InterfaceBlackList)
func (w *WorkerICE) newStdNet() (*stdnet.Net, error) {
return stdnet.NewNet(w.config.ICEConfig.InterfaceBlackList)
}

4
client/internal/peer/stdnet_android.go
View File

@ -2,6 +2,6 @@ package peer
import "github.com/netbirdio/netbird/client/internal/stdnet"
func (conn *Conn) newStdNet() (*stdnet.Net, error) {
return stdnet.NewNetWithDiscover(conn.iFaceDiscover, conn.config.ICEConfig.InterfaceBlackList)
func (w *WorkerICE) newStdNet() (*stdnet.Net, error) {
return stdnet.NewNetWithDiscover(w.iFaceDiscover, w.config.ICEConfig.InterfaceBlackList)
}

470
client/internal/peer/worker_ice.go Normal file
View File

@ -0,0 +1,470 @@
package peer
import (
"context"
"fmt"
"net"
"net/netip"
"runtime"
"sync"
"sync/atomic"
"time"
"github.com/pion/ice/v3"
"github.com/pion/randutil"
"github.com/pion/stun/v2"
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/client/internal/stdnet"
"github.com/netbirdio/netbird/iface"
"github.com/netbirdio/netbird/iface/bind"
"github.com/netbirdio/netbird/route"
)
const (
iceKeepAliveDefault = 4 * time.Second
iceDisconnectedTimeoutDefault = 6 * time.Second
// iceRelayAcceptanceMinWaitDefault is the same as in the Pion ICE package
iceRelayAcceptanceMinWaitDefault = 2 * time.Second
lenUFrag = 16
lenPwd = 32
runesAlpha = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
)
var (
failedTimeout = 6 * time.Second
)
type ICEConfig struct {
// StunTurn is a list of STUN and TURN URLs
StunTurn *atomic.Value // []*stun.URI
// InterfaceBlackList is a list of machine interfaces that should be filtered out by ICE Candidate gathering
// (e.g. if eth0 is in the list, host candidate of this interface won't be used)
InterfaceBlackList []string
DisableIPv6Discovery bool
UDPMux ice.UDPMux
UDPMuxSrflx ice.UniversalUDPMux
NATExternalIPs []string
}
type ICEConnInfo struct {
RemoteConn net.Conn
RosenpassPubKey []byte
RosenpassAddr string
LocalIceCandidateType string
RemoteIceCandidateType string
RemoteIceCandidateEndpoint string
LocalIceCandidateEndpoint string
Relayed bool
RelayedOnLocal bool
}
type WorkerICECallbacks struct {
OnConnReady func(ConnPriority, ICEConnInfo)
OnStatusChanged func(ConnStatus)
}
type WorkerICE struct {
ctx context.Context
log *log.Entry
config ConnConfig
signaler *Signaler
iFaceDiscover stdnet.ExternalIFaceDiscover
statusRecorder *Status
hasRelayOnLocally bool
conn WorkerICECallbacks
selectedPriority ConnPriority
agent *ice.Agent
muxAgent sync.Mutex
StunTurn []*stun.URI
sentExtraSrflx bool
localUfrag string
localPwd string
}
func NewWorkerICE(ctx context.Context, log *log.Entry, config ConnConfig, signaler *Signaler, ifaceDiscover stdnet.ExternalIFaceDiscover, statusRecorder *Status, hasRelayOnLocally bool, callBacks WorkerICECallbacks) (*WorkerICE, error) {
w := &WorkerICE{
ctx: ctx,
log: log,
config: config,
signaler: signaler,
iFaceDiscover: ifaceDiscover,
statusRecorder: statusRecorder,
hasRelayOnLocally: hasRelayOnLocally,
conn: callBacks,
}
localUfrag, localPwd, err := generateICECredentials()
if err != nil {
return nil, err
}
w.localUfrag = localUfrag
w.localPwd = localPwd
return w, nil
}
func (w *WorkerICE) OnNewOffer(remoteOfferAnswer *OfferAnswer) {
w.log.Debugf("OnNewOffer for ICE")
w.muxAgent.Lock()
if w.agent != nil {
w.log.Debugf("agent already exists, skipping the offer")
w.muxAgent.Unlock()
return
}
var preferredCandidateTypes []ice.CandidateType
if w.hasRelayOnLocally && remoteOfferAnswer.RelaySrvAddress != "" {
w.selectedPriority = connPriorityICEP2P
preferredCandidateTypes = candidateTypesP2P()
} else {
w.selectedPriority = connPriorityICETurn
preferredCandidateTypes = candidateTypes()
}
w.log.Debugf("recreate ICE agent")
agentCtx, agentCancel := context.WithCancel(w.ctx)
agent, err := w.reCreateAgent(agentCancel, preferredCandidateTypes)
if err != nil {
w.log.Errorf("failed to recreate ICE Agent: %s", err)
w.muxAgent.Unlock()
return
}
w.agent = agent
w.muxAgent.Unlock()
w.log.Debugf("gather candidates")
err = w.agent.GatherCandidates()
if err != nil {
w.log.Debugf("failed to gather candidates: %s", err)
return
}
// will block until connection succeeded
// but it won't release if ICE Agent went into Disconnected or Failed state,
// so we have to cancel it with the provided context once agent detected a broken connection
w.log.Debugf("turn agent dial")
remoteConn, err := w.turnAgentDial(agentCtx, remoteOfferAnswer)
if err != nil {
w.log.Debugf("failed to dial the remote peer: %s", err)
return
}
w.log.Debugf("agent dial succeeded")
pair, err := w.agent.GetSelectedCandidatePair()
if err != nil {
return
}
if !isRelayCandidate(pair.Local) {
// dynamically set remote WireGuard port if other side specified a different one from the default one
remoteWgPort := iface.DefaultWgPort
if remoteOfferAnswer.WgListenPort != 0 {
remoteWgPort = remoteOfferAnswer.WgListenPort
}
// To support old version's with direct mode we attempt to punch an additional role with the remote WireGuard port
go w.punchRemoteWGPort(pair, remoteWgPort)
}
ci := ICEConnInfo{
RemoteConn: remoteConn,
RosenpassPubKey: remoteOfferAnswer.RosenpassPubKey,
RosenpassAddr: remoteOfferAnswer.RosenpassAddr,
LocalIceCandidateType: pair.Local.Type().String(),
RemoteIceCandidateType: pair.Remote.Type().String(),
LocalIceCandidateEndpoint: fmt.Sprintf("%s:%d", pair.Local.Address(), pair.Local.Port()),
RemoteIceCandidateEndpoint: fmt.Sprintf("%s:%d", pair.Remote.Address(), pair.Remote.Port()),
Relayed: isRelayed(pair),
RelayedOnLocal: isRelayCandidate(pair.Local),
}
w.log.Debugf("on ICE conn read to use ready")
go w.conn.OnConnReady(w.selectedPriority, ci)
}
// OnRemoteCandidate Handles ICE connection Candidate provided by the remote peer.
func (w *WorkerICE) OnRemoteCandidate(candidate ice.Candidate, haRoutes route.HAMap) {
w.muxAgent.Lock()
defer w.muxAgent.Unlock()
w.log.Debugf("OnRemoteCandidate from peer %s -> %s", w.config.Key, candidate.String())
if w.agent == nil {
w.log.Warnf("ICE Agent is not initialized yet")
return
}
if candidateViaRoutes(candidate, haRoutes) {
return
}
err := w.agent.AddRemoteCandidate(candidate)
if err != nil {
w.log.Errorf("error while handling remote candidate")
return
}
}
func (w *WorkerICE) GetLocalUserCredentials() (frag string, pwd string) {
w.muxAgent.Lock()
defer w.muxAgent.Unlock()
return w.localUfrag, w.localPwd
}
func (w *WorkerICE) Close() {
w.muxAgent.Lock()
defer w.muxAgent.Unlock()
if w.agent == nil {
return
}
err := w.agent.Close()
if err != nil {
w.log.Warnf("failed to close ICE agent: %s", err)
}
}
func (w *WorkerICE) reCreateAgent(agentCancel context.CancelFunc, relaySupport []ice.CandidateType) (*ice.Agent, error) {
transportNet, err := w.newStdNet()
if err != nil {
w.log.Errorf("failed to create pion's stdnet: %s", err)
}
iceKeepAlive := iceKeepAlive()
iceDisconnectedTimeout := iceDisconnectedTimeout()
iceRelayAcceptanceMinWait := iceRelayAcceptanceMinWait()
agentConfig := &ice.AgentConfig{
MulticastDNSMode: ice.MulticastDNSModeDisabled,
NetworkTypes: []ice.NetworkType{ice.NetworkTypeUDP4, ice.NetworkTypeUDP6},
Urls: w.config.ICEConfig.StunTurn.Load().([]*stun.URI),
CandidateTypes: relaySupport,
InterfaceFilter: stdnet.InterfaceFilter(w.config.ICEConfig.InterfaceBlackList),
UDPMux: w.config.ICEConfig.UDPMux,
UDPMuxSrflx: w.config.ICEConfig.UDPMuxSrflx,
NAT1To1IPs: w.config.ICEConfig.NATExternalIPs,
Net: transportNet,
FailedTimeout: &failedTimeout,
DisconnectedTimeout: &iceDisconnectedTimeout,
KeepaliveInterval: &iceKeepAlive,
RelayAcceptanceMinWait: &iceRelayAcceptanceMinWait,
LocalUfrag: w.localUfrag,
LocalPwd: w.localPwd,
}
if w.config.ICEConfig.DisableIPv6Discovery {
agentConfig.NetworkTypes = []ice.NetworkType{ice.NetworkTypeUDP4}
}
w.sentExtraSrflx = false
agent, err := ice.NewAgent(agentConfig)
if err != nil {
return nil, err
}
err = agent.OnCandidate(w.onICECandidate)
if err != nil {
return nil, err
}
err = agent.OnConnectionStateChange(func(state ice.ConnectionState) {
w.log.Debugf("ICE ConnectionState has changed to %s", state.String())
if state == ice.ConnectionStateFailed || state == ice.ConnectionStateDisconnected {
w.conn.OnStatusChanged(StatusDisconnected)
w.muxAgent.Lock()
agentCancel()
_ = agent.Close()
w.agent = nil
w.muxAgent.Unlock()
}
})
if err != nil {
return nil, err
}
err = agent.OnSelectedCandidatePairChange(w.onICESelectedCandidatePair)
if err != nil {
return nil, err
}
err = agent.OnSuccessfulSelectedPairBindingResponse(func(p *ice.CandidatePair) {
err := w.statusRecorder.UpdateLatency(w.config.Key, p.Latency())
if err != nil {
w.log.Debugf("failed to update latency for peer: %s", err)
return
}
})
if err != nil {
return nil, fmt.Errorf("failed setting binding response callback: %w", err)
}
return agent, nil
}
func (w *WorkerICE) punchRemoteWGPort(pair *ice.CandidatePair, remoteWgPort int) {
// wait local endpoint configuration
time.Sleep(time.Second)
addr, err := net.ResolveUDPAddr("udp", fmt.Sprintf("%s:%d", pair.Remote.Address(), remoteWgPort))
if err != nil {
w.log.Warnf("got an error while resolving the udp address, err: %s", err)
return
}
mux, ok := w.config.ICEConfig.UDPMuxSrflx.(*bind.UniversalUDPMuxDefault)
if !ok {
w.log.Warn("invalid udp mux conversion")
return
}
_, err = mux.GetSharedConn().WriteTo([]byte{0x6e, 0x62}, addr)
if err != nil {
w.log.Warnf("got an error while sending the punch packet, err: %s", err)
}
}
// onICECandidate is a callback attached to an ICE Agent to receive new local connection candidates
// and then signals them to the remote peer
func (w *WorkerICE) onICECandidate(candidate ice.Candidate) {
// nil means candidate gathering has been ended
if candidate == nil {
return
}
// TODO: reported port is incorrect for CandidateTypeHost, makes understanding ICE use via logs confusing as port is ignored
w.log.Debugf("discovered local candidate %s", candidate.String())
go func() {
err := w.signaler.SignalICECandidate(candidate, w.config.Key)
if err != nil {
w.log.Errorf("failed signaling candidate to the remote peer %s %s", w.config.Key, err)
}
}()
if !w.shouldSendExtraSrflxCandidate(candidate) {
return
}
// sends an extra server reflexive candidate to the remote peer with our related port (usually the wireguard port)
// this is useful when network has an existing port forwarding rule for the wireguard port and this peer
extraSrflx, err := extraSrflxCandidate(candidate)
if err != nil {
w.log.Errorf("failed creating extra server reflexive candidate %s", err)
return
}
w.sentExtraSrflx = true
go func() {
err = w.signaler.SignalICECandidate(extraSrflx, w.config.Key)
if err != nil {
w.log.Errorf("failed signaling the extra server reflexive candidate: %s", err)
}
}()
}
func (w *WorkerICE) onICESelectedCandidatePair(c1 ice.Candidate, c2 ice.Candidate) {
w.log.Debugf("selected candidate pair [local <-> remote] -> [%s <-> %s], peer %s", c1.String(), c2.String(),
w.config.Key)
}
func (w *WorkerICE) shouldSendExtraSrflxCandidate(candidate ice.Candidate) bool {
if !w.sentExtraSrflx && candidate.Type() == ice.CandidateTypeServerReflexive && candidate.Port() != candidate.RelatedAddress().Port {
return true
}
return false
}
func (w *WorkerICE) turnAgentDial(ctx context.Context, remoteOfferAnswer *OfferAnswer) (*ice.Conn, error) {
isControlling := w.config.LocalKey > w.config.Key
if isControlling {
return w.agent.Dial(ctx, remoteOfferAnswer.IceCredentials.UFrag, remoteOfferAnswer.IceCredentials.Pwd)
} else {
return w.agent.Accept(ctx, remoteOfferAnswer.IceCredentials.UFrag, remoteOfferAnswer.IceCredentials.Pwd)
}
}
func extraSrflxCandidate(candidate ice.Candidate) (*ice.CandidateServerReflexive, error) {
relatedAdd := candidate.RelatedAddress()
return ice.NewCandidateServerReflexive(&ice.CandidateServerReflexiveConfig{
Network: candidate.NetworkType().String(),
Address: candidate.Address(),
Port: relatedAdd.Port,
Component: candidate.Component(),
RelAddr: relatedAdd.Address,
RelPort: relatedAdd.Port,
})
}
func candidateViaRoutes(candidate ice.Candidate, clientRoutes route.HAMap) bool {
var routePrefixes []netip.Prefix
for _, routes := range clientRoutes {
if len(routes) > 0 && routes[0] != nil {
routePrefixes = append(routePrefixes, routes[0].Network)
}
}
addr, err := netip.ParseAddr(candidate.Address())
if err != nil {
log.Errorf("Failed to parse IP address %s: %v", candidate.Address(), err)
return false
}
for _, prefix := range routePrefixes {
// default route is
if prefix.Bits() == 0 {
continue
}
if prefix.Contains(addr) {
log.Debugf("Ignoring candidate [%s], its address is part of routed network %s", candidate.String(), prefix)
return true
}
}
return false
}
func candidateTypes() []ice.CandidateType {
if hasICEForceRelayConn() {
return []ice.CandidateType{ice.CandidateTypeRelay}
}
// TODO: remove this once we have refactored userspace proxy into the bind package
if runtime.GOOS == "ios" {
return []ice.CandidateType{ice.CandidateTypeHost, ice.CandidateTypeServerReflexive}
}
return []ice.CandidateType{ice.CandidateTypeHost, ice.CandidateTypeServerReflexive, ice.CandidateTypeRelay}
}
func candidateTypesP2P() []ice.CandidateType {
return []ice.CandidateType{ice.CandidateTypeHost, ice.CandidateTypeServerReflexive}
}
func isRelayCandidate(candidate ice.Candidate) bool {
return candidate.Type() == ice.CandidateTypeRelay
}
func isRelayed(pair *ice.CandidatePair) bool {
if pair.Local.Type() == ice.CandidateTypeRelay || pair.Remote.Type() == ice.CandidateTypeRelay {
return true
}
return false
}
func generateICECredentials() (string, string, error) {
ufrag, err := randutil.GenerateCryptoRandomString(lenUFrag, runesAlpha)
if err != nil {
return "", "", err
}
pwd, err := randutil.GenerateCryptoRandomString(lenPwd, runesAlpha)
if err != nil {
return "", "", err
}
return ufrag, pwd, nil
}

223
client/internal/peer/worker_relay.go Normal file
View File

@ -0,0 +1,223 @@
package peer
import (
"context"
"errors"
"net"
"sync"
"sync/atomic"
"time"
log "github.com/sirupsen/logrus"
relayClient "github.com/netbirdio/netbird/relay/client"
)
var (
wgHandshakePeriod = 2 * time.Minute
wgHandshakeOvertime = 30 * time.Second
)
type RelayConnInfo struct {
relayedConn net.Conn
rosenpassPubKey []byte
rosenpassAddr string
}
type WorkerRelayCallbacks struct {
OnConnReady func(RelayConnInfo)
OnDisconnected func()
}
type WorkerRelay struct {
log *log.Entry
config ConnConfig
relayManager relayClient.ManagerService
callBacks WorkerRelayCallbacks
relayedConn net.Conn
relayLock sync.Mutex
ctxWgWatch context.Context
ctxCancelWgWatch context.CancelFunc
ctxLock sync.Mutex
relaySupportedOnRemotePeer atomic.Bool
}
func NewWorkerRelay(log *log.Entry, config ConnConfig, relayManager relayClient.ManagerService, callbacks WorkerRelayCallbacks) *WorkerRelay {
r := &WorkerRelay{
log: log,
config: config,
relayManager: relayManager,
callBacks: callbacks,
}
return r
}
func (w *WorkerRelay) OnNewOffer(remoteOfferAnswer *OfferAnswer) {
if !w.isRelaySupported(remoteOfferAnswer) {
w.log.Infof("Relay is not supported by remote peer")
w.relaySupportedOnRemotePeer.Store(false)
return
}
w.relaySupportedOnRemotePeer.Store(true)
// the relayManager will return with error in case if the connection has lost with relay server
currentRelayAddress, err := w.relayManager.RelayInstanceAddress()
if err != nil {
w.log.Errorf("failed to handle new offer: %s", err)
return
}
srv := w.preferredRelayServer(currentRelayAddress, remoteOfferAnswer.RelaySrvAddress)
relayedConn, err := w.relayManager.OpenConn(srv, w.config.Key)
if err != nil {
if errors.Is(err, relayClient.ErrConnAlreadyExists) {
w.log.Infof("do not need to reopen relay connection")
return
}
w.log.Errorf("failed to open connection via Relay: %s", err)
return
}
w.relayLock.Lock()
w.relayedConn = relayedConn
w.relayLock.Unlock()
err = w.relayManager.AddCloseListener(srv, w.onRelayMGDisconnected)
if err != nil {
log.Errorf("failed to add close listener: %s", err)
_ = relayedConn.Close()
return
}
w.log.Debugf("peer conn opened via Relay: %s", srv)
go w.callBacks.OnConnReady(RelayConnInfo{
relayedConn: relayedConn,
rosenpassPubKey: remoteOfferAnswer.RosenpassPubKey,
rosenpassAddr: remoteOfferAnswer.RosenpassAddr,
})
}
func (w *WorkerRelay) EnableWgWatcher(ctx context.Context) {
w.log.Debugf("enable WireGuard watcher")
w.ctxLock.Lock()
defer w.ctxLock.Unlock()
if w.ctxWgWatch != nil && w.ctxWgWatch.Err() == nil {
return
}
ctx, ctxCancel := context.WithCancel(ctx)
go w.wgStateCheck(ctx)
w.ctxWgWatch = ctx
w.ctxCancelWgWatch = ctxCancel
}
func (w *WorkerRelay) DisableWgWatcher() {
w.ctxLock.Lock()
defer w.ctxLock.Unlock()
if w.ctxCancelWgWatch == nil {
return
}
w.log.Debugf("disable WireGuard watcher")
w.ctxCancelWgWatch()
}
func (w *WorkerRelay) RelayInstanceAddress() (string, error) {
return w.relayManager.RelayInstanceAddress()
}
func (w *WorkerRelay) IsRelayConnectionSupportedWithPeer() bool {
return w.relaySupportedOnRemotePeer.Load() && w.RelayIsSupportedLocally()
}
func (w *WorkerRelay) IsController() bool {
return w.config.LocalKey > w.config.Key
}
func (w *WorkerRelay) RelayIsSupportedLocally() bool {
return w.relayManager.HasRelayAddress()
}
func (w *WorkerRelay) CloseConn() {
w.relayLock.Lock()
defer w.relayLock.Unlock()
if w.relayedConn == nil {
return
}
err := w.relayedConn.Close()
if err != nil {
w.log.Warnf("failed to close relay connection: %v", err)
}
}
// wgStateCheck help to check the state of the wireguard handshake and relay connection
func (w *WorkerRelay) wgStateCheck(ctx context.Context) {
timer := time.NewTimer(wgHandshakeOvertime)
defer timer.Stop()
expected := wgHandshakeOvertime
for {
select {
case <-timer.C:
lastHandshake, err := w.wgState()
if err != nil {
w.log.Errorf("failed to read wg stats: %v", err)
continue
}
w.log.Tracef("last handshake: %v", lastHandshake)
if time.Since(lastHandshake) > expected {
w.log.Infof("Wireguard handshake timed out, closing relay connection")
w.relayLock.Lock()
_ = w.relayedConn.Close()
w.relayLock.Unlock()
w.callBacks.OnDisconnected()
return
}
resetTime := time.Until(lastHandshake.Add(wgHandshakePeriod + wgHandshakeOvertime))
timer.Reset(resetTime)
expected = wgHandshakePeriod
case <-ctx.Done():
w.log.Debugf("WireGuard watcher stopped")
return
}
}
}
func (w *WorkerRelay) isRelaySupported(answer *OfferAnswer) bool {
if !w.relayManager.HasRelayAddress() {
return false
}
return answer.RelaySrvAddress != ""
}
func (w *WorkerRelay) preferredRelayServer(myRelayAddress, remoteRelayAddress string) string {
if w.IsController() {
return myRelayAddress
}
return remoteRelayAddress
}
func (w *WorkerRelay) wgState() (time.Time, error) {
wgState, err := w.config.WgConfig.WgInterface.GetStats(w.config.Key)
if err != nil {
return time.Time{}, err
}
return wgState.LastHandshake, nil
}
func (w *WorkerRelay) onRelayMGDisconnected() {
w.ctxLock.Lock()
defer w.ctxLock.Unlock()
if w.ctxCancelWgWatch != nil {
w.ctxCancelWgWatch()
}
go w.callBacks.OnDisconnected()
}

4
client/internal/relay/relay.go
View File

@ -17,7 +17,7 @@ import (
// ProbeResult holds the info about the result of a relay probe request
type ProbeResult struct {
URI *stun.URI
URI string
Err error
Addr string
}
@ -176,7 +176,7 @@ func ProbeAll(
wg.Add(1)
go func(res *ProbeResult, stunURI *stun.URI) {
defer wg.Done()
res.URI = stunURI
res.URI = stunURI.String()
res.Addr, res.Err = fn(ctx, stunURI)
}(&results[i], uri)
}

8
client/internal/routemanager/client.go
View File

@ -22,7 +22,6 @@ import (
type routerPeerStatus struct {
connected bool
relayed bool
direct bool
latency time.Duration
}
@ -82,7 +81,6 @@ func (c *clientNetwork) getRouterPeerStatuses() map[route.ID]routerPeerStatus {
routePeerStatuses[r.ID] = routerPeerStatus{
connected: peerStatus.ConnStatus == peer.StatusConnected,
relayed: peerStatus.Relayed,
direct: peerStatus.Direct,
latency: peerStatus.Latency,
}
}
@ -97,8 +95,8 @@ func (c *clientNetwork) getRouterPeerStatuses() map[route.ID]routerPeerStatus {
// * Connected peers: Only routes with connected peers are considered.
// * Metric: Routes with lower metrics (better) are prioritized.
// * Non-relayed: Routes without relays are preferred.
// * Direct connections: Routes with direct peer connections are favored.
// * Latency: Routes with lower latency are prioritized.
// * we compare the current score + 10ms to the chosen score to avoid flapping between routes
// * Stability: In case of equal scores, the currently active route (if any) is maintained.
//
// It returns the ID of the selected optimal route.
@ -137,10 +135,6 @@ func (c *clientNetwork) getBestRouteFromStatuses(routePeerStatuses map[route.ID]
tempScore++
}
if peerStatus.direct {
tempScore++
}
if tempScore > chosenScore || (tempScore == chosenScore && chosen == "") {
chosen = r.ID
chosenScore = tempScore

43
client/internal/routemanager/client_test.go
View File

@ -24,7 +24,6 @@ func TestGetBestrouteFromStatuses(t *testing.T) {
"route1": {
connected: true,
relayed: false,
direct: true,
},
},
existingRoutes: map[route.ID]*route.Route{
@ -43,7 +42,6 @@ func TestGetBestrouteFromStatuses(t *testing.T) {
"route1": {
connected: true,
relayed: true,
direct: true,
},
},
existingRoutes: map[route.ID]*route.Route{
@ -62,7 +60,6 @@ func TestGetBestrouteFromStatuses(t *testing.T) {
"route1": {
connected: true,
relayed: true,
direct: false,
},
},
existingRoutes: map[route.ID]*route.Route{
@ -81,7 +78,6 @@ func TestGetBestrouteFromStatuses(t *testing.T) {
"route1": {
connected: false,
relayed: false,
direct: false,
},
},
existingRoutes: map[route.ID]*route.Route{
@ -100,12 +96,10 @@ func TestGetBestrouteFromStatuses(t *testing.T) {
"route1": {
connected: true,
relayed: false,
direct: true,
},
"route2": {
connected: true,
relayed: false,
direct: true,
},
},
existingRoutes: map[route.ID]*route.Route{
@ -129,41 +123,10 @@ func TestGetBestrouteFromStatuses(t *testing.T) {
"route1": {
connected: true,
relayed: false,
direct: true,
},
"route2": {
connected: true,
relayed: true,
direct: true,
},
},
existingRoutes: map[route.ID]*route.Route{
"route1": {
ID: "route1",
Metric: route.MaxMetric,
Peer: "peer1",
},
"route2": {
ID: "route2",
Metric: route.MaxMetric,
Peer: "peer2",
},
},
currentRoute: "",
expectedRouteID: "route1",
},
{
name: "multiple connected peers with one direct",
statuses: map[route.ID]routerPeerStatus{
"route1": {
connected: true,
relayed: false,
direct: true,
},
"route2": {
connected: true,
relayed: false,
direct: false,
},
},
existingRoutes: map[route.ID]*route.Route{
@ -241,13 +204,11 @@ func TestGetBestrouteFromStatuses(t *testing.T) {
"route1": {
connected: true,
relayed: false,
direct: true,
latency: 15 * time.Millisecond,
},
"route2": {
connected: true,
relayed: false,
direct: true,
latency: 10 * time.Millisecond,
},
},
@ -272,13 +233,11 @@ func TestGetBestrouteFromStatuses(t *testing.T) {
"route1": {
connected: true,
relayed: false,
direct: true,
latency: 200 * time.Millisecond,
},
"route2": {
connected: true,
relayed: false,
direct: true,
latency: 10 * time.Millisecond,
},
},
@ -303,13 +262,11 @@ func TestGetBestrouteFromStatuses(t *testing.T) {
"route1": {
connected: true,
relayed: false,
direct: true,
latency: 20 * time.Millisecond,
},
"route2": {
connected: true,
relayed: false,
direct: true,
latency: 10 * time.Millisecond,
},
},

13
client/internal/routemanager/manager.go
View File

@ -22,6 +22,7 @@ import (
"github.com/netbirdio/netbird/client/internal/routemanager/vars"
"github.com/netbirdio/netbird/client/internal/routeselector"
"github.com/netbirdio/netbird/iface"
relayClient "github.com/netbirdio/netbird/relay/client"
"github.com/netbirdio/netbird/route"
nbnet "github.com/netbirdio/netbird/util/net"
"github.com/netbirdio/netbird/version"
@ -49,6 +50,7 @@ type DefaultManager struct {
serverRouter serverRouter
sysOps *systemops.SysOps
statusRecorder *peer.Status
relayMgr *relayClient.Manager
wgInterface iface.IWGIface
pubKey string
notifier *notifier.Notifier
@ -63,6 +65,7 @@ func NewManager(
dnsRouteInterval time.Duration,
wgInterface iface.IWGIface,
statusRecorder *peer.Status,
relayMgr *relayClient.Manager,
initialRoutes []*route.Route,
) *DefaultManager {
mCTX, cancel := context.WithCancel(ctx)
@ -74,6 +77,7 @@ func NewManager(
stop: cancel,
dnsRouteInterval: dnsRouteInterval,
clientNetworks: make(map[route.HAUniqueID]*clientNetwork),
relayMgr: relayMgr,
routeSelector: routeselector.NewRouteSelector(),
sysOps: sysOps,
statusRecorder: statusRecorder,
@ -124,9 +128,12 @@ func (m *DefaultManager) Init() (nbnet.AddHookFunc, nbnet.RemoveHookFunc, error)
log.Warnf("Failed cleaning up routing: %v", err)
}
mgmtAddress := m.statusRecorder.GetManagementState().URL
signalAddress := m.statusRecorder.GetSignalState().URL
ips := resolveURLsToIPs([]string{mgmtAddress, signalAddress})
initialAddresses := []string{m.statusRecorder.GetManagementState().URL, m.statusRecorder.GetSignalState().URL}
if m.relayMgr != nil {
initialAddresses = append(initialAddresses, m.relayMgr.ServerURLs()...)
}
ips := resolveURLsToIPs(initialAddresses)
beforePeerHook, afterPeerHook, err := m.sysOps.SetupRouting(ips)
if err != nil {

2
client/internal/routemanager/manager_test.go
View File

@ -416,7 +416,7 @@ func TestManagerUpdateRoutes(t *testing.T) {
statusRecorder := peer.NewRecorder("https://mgm")
ctx := context.TODO()
routeManager := NewManager(ctx, localPeerKey, 0, wgInterface, statusRecorder, nil)
routeManager := NewManager(ctx, localPeerKey, 0, wgInterface, statusRecorder, nil, nil)
_, _, err = routeManager.Init()

4
client/internal/wgproxy/proxy_ebpf.go
View File

@ -181,7 +181,7 @@ func (p *WGEBPFProxy) proxyToRemote() {
conn, ok := p.turnConnStore[uint16(addr.Port)]
p.turnConnMutex.Unlock()
if !ok {
log.Infof("turn conn not found by port: %d", addr.Port)
log.Debugf("turn conn not found by port because conn already has been closed: %d", addr.Port)
continue
}
@ -206,7 +206,7 @@ func (p *WGEBPFProxy) storeTurnConn(turnConn net.Conn) (uint16, error) {
}
func (p *WGEBPFProxy) removeTurnConn(turnConnID uint16) {
log.Tracef("remove turn conn from store by port: %d", turnConnID)
log.Debugf("remove turn conn from store by port: %d", turnConnID)
p.turnConnMutex.Lock()
defer p.turnConnMutex.Unlock()
delete(p.turnConnStore, turnConnID)

14
client/internal/wgproxy/proxy_userspace.go
View File

@ -3,6 +3,7 @@ package wgproxy
import (
"context"
"fmt"
"io"
"net"
log "github.com/sirupsen/logrus"
@ -64,7 +65,6 @@ func (p *WGUserSpaceProxy) Free() error {
// proxyToRemote proxies everything from Wireguard to the RemoteKey peer
// blocks
func (p *WGUserSpaceProxy) proxyToRemote() {
buf := make([]byte, 1500)
for {
select {
@ -73,11 +73,17 @@ func (p *WGUserSpaceProxy) proxyToRemote() {
default:
n, err := p.localConn.Read(buf)
if err != nil {
log.Debugf("failed to read from wg interface conn: %s", err)
continue
}
_, err = p.remoteConn.Write(buf[:n])
if err != nil {
if err == io.EOF {
p.cancel()
} else {
log.Debugf("failed to write to remote conn: %s", err)
}
continue
}
}
@ -96,11 +102,17 @@ func (p *WGUserSpaceProxy) proxyToLocal() {
default:
n, err := p.remoteConn.Read(buf)
if err != nil {
if err == io.EOF {
p.cancel()
return
}
log.Errorf("failed to read from remote conn: %s", err)
continue
}
_, err = p.localConn.Write(buf[:n])
if err != nil {
log.Debugf("failed to write to wg interface conn: %s", err)
continue
}
}

1
client/ios/NetBirdSDK/client.go
View File

@ -168,7 +168,6 @@ func (c *Client) GetStatusDetails() *StatusDetails {
BytesTx: p.BytesTx,
ConnStatus: p.ConnStatus.String(),
ConnStatusUpdate: p.ConnStatusUpdate.Format("2006-01-02 15:04:05"),
Direct: p.Direct,
LastWireguardHandshake: p.LastWireguardHandshake.String(),
Relayed: p.Relayed,
RosenpassEnabled: p.RosenpassEnabled,

423
client/proto/daemon.pb.go
View File

@ -1,7 +1,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v4.23.4
// protoc v3.21.12
// source: daemon.proto
package proto
@ -899,7 +899,6 @@ type PeerState struct {
ConnStatus string `protobuf:"bytes,3,opt,name=connStatus,proto3" json:"connStatus,omitempty"`
ConnStatusUpdate *timestamppb.Timestamp `protobuf:"bytes,4,opt,name=connStatusUpdate,proto3" json:"connStatusUpdate,omitempty"`
Relayed bool `protobuf:"varint,5,opt,name=relayed,proto3" json:"relayed,omitempty"`
Direct bool `protobuf:"varint,6,opt,name=direct,proto3" json:"direct,omitempty"`
LocalIceCandidateType string `protobuf:"bytes,7,opt,name=localIceCandidateType,proto3" json:"localIceCandidateType,omitempty"`
RemoteIceCandidateType string `protobuf:"bytes,8,opt,name=remoteIceCandidateType,proto3" json:"remoteIceCandidateType,omitempty"`
Fqdn string `protobuf:"bytes,9,opt,name=fqdn,proto3" json:"fqdn,omitempty"`
@ -911,6 +910,7 @@ type PeerState struct {
RosenpassEnabled bool `protobuf:"varint,15,opt,name=rosenpassEnabled,proto3" json:"rosenpassEnabled,omitempty"`
Routes []string `protobuf:"bytes,16,rep,name=routes,proto3" json:"routes,omitempty"`
Latency *durationpb.Duration `protobuf:"bytes,17,opt,name=latency,proto3" json:"latency,omitempty"`
RelayAddress string `protobuf:"bytes,18,opt,name=relayAddress,proto3" json:"relayAddress,omitempty"`
}
func (x *PeerState) Reset() {
@ -980,13 +980,6 @@ func (x *PeerState) GetRelayed() bool {
return false
}
func (x *PeerState) GetDirect() bool {
if x != nil {
return x.Direct
}
return false
}
func (x *PeerState) GetLocalIceCandidateType() string {
if x != nil {
return x.LocalIceCandidateType
@ -1064,6 +1057,13 @@ func (x *PeerState) GetLatency() *durationpb.Duration {
return nil
}
func (x *PeerState) GetRelayAddress() string {
if x != nil {
return x.RelayAddress
}
return ""
}
// LocalPeerState contains the latest state of the local peer
type LocalPeerState struct {
state protoimpl.MessageState
@ -2243,7 +2243,7 @@ var file_daemon_proto_rawDesc = []byte{
0x45, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x12, 0x30, 0x0a, 0x13, 0x72, 0x6f, 0x73, 0x65, 0x6e,
0x70, 0x61, 0x73, 0x73, 0x50, 0x65, 0x72, 0x6d, 0x69, 0x73, 0x73, 0x69, 0x76, 0x65, 0x18, 0x0c,
0x20, 0x01, 0x28, 0x08, 0x52, 0x13, 0x72, 0x6f, 0x73, 0x65, 0x6e, 0x70, 0x61, 0x73, 0x73, 0x50,
0x65, 0x72, 0x6d, 0x69, 0x73, 0x73, 0x69, 0x76, 0x65, 0x22, 0xce, 0x05, 0x0a, 0x09, 0x50, 0x65,
0x65, 0x72, 0x6d, 0x69, 0x73, 0x73, 0x69, 0x76, 0x65, 0x22, 0xda, 0x05, 0x0a, 0x09, 0x50, 0x65,
0x65, 0x72, 0x53, 0x74, 0x61, 0x74, 0x65, 0x12, 0x0e, 0x0a, 0x02, 0x49, 0x50, 0x18, 0x01, 0x20,
0x01, 0x28, 0x09, 0x52, 0x02, 0x49, 0x50, 0x12, 0x16, 0x0a, 0x06, 0x70, 0x75, 0x62, 0x4b, 0x65,
0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x70, 0x75, 0x62, 0x4b, 0x65, 0x79, 0x12,
@ -2255,209 +2255,210 @@ var file_daemon_proto_rawDesc = []byte{
0x73, 0x74, 0x61, 0x6d, 0x70, 0x52, 0x10, 0x63, 0x6f, 0x6e, 0x6e, 0x53, 0x74, 0x61, 0x74, 0x75,
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0x08, 0x5a, 0x06, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
0x33,
}
var (

2
client/proto/daemon.proto
View File

@ -168,7 +168,6 @@ message PeerState {
string connStatus = 3;
google.protobuf.Timestamp connStatusUpdate = 4;
bool relayed = 5;
bool direct = 6;
string localIceCandidateType = 7;
string remoteIceCandidateType = 8;
string fqdn = 9;
@ -180,6 +179,7 @@ message PeerState {
bool rosenpassEnabled = 15;
repeated string routes = 16;
google.protobuf.Duration latency = 17;
string relayAddress = 18;
}
// LocalPeerState contains the latest state of the local peer

4
client/server/debug.go
View File

@ -369,8 +369,8 @@ func seedFromStatus(a *anonymize.Anonymizer, status *peer.FullStatus) {
}
for _, relay := range status.Relays {
if relay.URI != nil {
a.AnonymizeURI(relay.URI.String())
if relay.URI != "" {
a.AnonymizeURI(relay.URI)
}
}
}

4
client/server/server.go
View File

@ -758,11 +758,11 @@ func toProtoFullStatus(fullStatus peer.FullStatus) *proto.FullStatus {
ConnStatus: peerState.ConnStatus.String(),
ConnStatusUpdate: timestamppb.New(peerState.ConnStatusUpdate),
Relayed: peerState.Relayed,
Direct: peerState.Direct,
LocalIceCandidateType: peerState.LocalIceCandidateType,
RemoteIceCandidateType: peerState.RemoteIceCandidateType,
LocalIceCandidateEndpoint: peerState.LocalIceCandidateEndpoint,
RemoteIceCandidateEndpoint: peerState.RemoteIceCandidateEndpoint,
RelayAddress: peerState.RelayServerAddress,
Fqdn: peerState.FQDN,
LastWireguardHandshake: timestamppb.New(peerState.LastWireguardHandshake),
BytesRx: peerState.BytesRx,
@ -776,7 +776,7 @@ func toProtoFullStatus(fullStatus peer.FullStatus) *proto.FullStatus {
for _, relayState := range fullStatus.Relays {
pbRelayState := &proto.RelayState{
URI: relayState.URI.String(),
URI: relayState.URI,
Available: relayState.Err == nil,
}
if err := relayState.Err; err != nil {

8
client/server/server_test.go
View File

@ -6,10 +6,11 @@ import (
"testing"
"time"
"github.com/netbirdio/management-integrations/integrations"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel"
"github.com/netbirdio/management-integrations/integrations"
log "github.com/sirupsen/logrus"
"google.golang.org/grpc"
"google.golang.org/grpc/keepalive"
@ -129,8 +130,9 @@ func startManagement(t *testing.T, signalAddr string, counter *int) (*grpc.Serve
if err != nil {
return nil, "", err
}
turnManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
mgmtServer, err := server.NewServer(context.Background(), config, accountManager, peersUpdateManager, turnManager, nil, nil)
secretsManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay)
mgmtServer, err := server.NewServer(context.Background(), config, accountManager, peersUpdateManager, secretsManager, nil, nil)
if err != nil {
return nil, "", err
}

7
client/testdata/management.json vendored
View File

@ -20,6 +20,13 @@
"Secret": "c29tZV9wYXNzd29yZA==",
"TimeBasedCredentials": true
},
"Relay": {
"Addresses": [
"localhost:0"
],
"CredentialsTTL": "1h",
"Secret": "b29tZV9wYXNzd29yZA=="
},
"Signal": {
"Proto": "http",
"URI": "signal.wiretrustee.com:10000",

19
encryption/cert.go Normal file
View File

@ -0,0 +1,19 @@
package encryption
import "crypto/tls"
func LoadTLSConfig(certFile, keyFile string) (*tls.Config, error) {
serverCert, err := tls.LoadX509KeyPair(certFile, keyFile)
if err != nil {
return nil, err
}
config := &tls.Config{
Certificates: []tls.Certificate{serverCert},
ClientAuth: tls.NoClientCert,
NextProtos: []string{
"h2", "http/1.1", // enable HTTP/2
},
}
return config, nil
}

4
encryption/letsencrypt.go
View File

@ -9,7 +9,7 @@ import (
)
// CreateCertManager wraps common logic of generating Let's encrypt certificate.
func CreateCertManager(datadir string, letsencryptDomain string) (*autocert.Manager, error) {
func CreateCertManager(datadir string, letsencryptDomain ...string) (*autocert.Manager, error) {
certDir := filepath.Join(datadir, "letsencrypt")
if _, err := os.Stat(certDir); os.IsNotExist(err) {
@ -24,7 +24,7 @@ func CreateCertManager(datadir string, letsencryptDomain string) (*autocert.Mana
certManager := &autocert.Manager{
Prompt: autocert.AcceptTOS,
Cache: autocert.DirCache(certDir),
HostPolicy: autocert.HostWhitelist(letsencryptDomain),
HostPolicy: autocert.HostWhitelist(letsencryptDomain...),
}
return certManager, nil

87
encryption/route53.go Normal file
View File

@ -0,0 +1,87 @@
package encryption
import (
"context"
"crypto/tls"
"fmt"
"os"
"strings"
"github.com/caddyserver/certmagic"
"github.com/libdns/route53"
log "github.com/sirupsen/logrus"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"golang.org/x/crypto/acme"
)
// Route53TLS by default, loads the AWS configuration from the environment.
// env variables: AWS_REGION, AWS_PROFILE, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN
type Route53TLS struct {
DataDir string
Email string
Domains []string
CA string
}
func (r *Route53TLS) GetCertificate() (*tls.Config, error) {
if len(r.Domains) == 0 {
return nil, fmt.Errorf("no domains provided")
}
certmagic.Default.Logger = logger()
certmagic.Default.Storage = &certmagic.FileStorage{Path: r.DataDir}
certmagic.DefaultACME.Agreed = true
if r.Email != "" {
certmagic.DefaultACME.Email = r.Email
} else {
certmagic.DefaultACME.Email = emailFromDomain(r.Domains[0])
}
if r.CA == "" {
certmagic.DefaultACME.CA = certmagic.LetsEncryptProductionCA
} else {
certmagic.DefaultACME.CA = r.CA
}
certmagic.DefaultACME.DNS01Solver = &certmagic.DNS01Solver{
DNSManager: certmagic.DNSManager{
DNSProvider: &route53.Provider{},
},
}
cm := certmagic.NewDefault()
if err := cm.ManageSync(context.Background(), r.Domains); err != nil {
log.Errorf("failed to manage certificate: %v", err)
return nil, err
}
tlsConfig := &tls.Config{
GetCertificate: cm.GetCertificate,
NextProtos: []string{"h2", "http/1.1", acme.ALPNProto},
}
return tlsConfig, nil
}
func emailFromDomain(domain string) string {
if domain == "" {
return ""
}
parts := strings.Split(domain, ".")
if len(parts) < 2 {
return ""
}
if parts[0] == "" {
return ""
}
return fmt.Sprintf("admin@%s.%s", parts[len(parts)-2], parts[len(parts)-1])
}
func logger() *zap.Logger {
return zap.New(zapcore.NewCore(
zapcore.NewConsoleEncoder(zap.NewProductionEncoderConfig()),
os.Stderr,
zap.ErrorLevel,
))
}

84
encryption/route53_test.go Normal file
View File

@ -0,0 +1,84 @@
package encryption
import (
"context"
"io"
"net/http"
"os"
"testing"
"time"
)
func TestRoute53TLSConfig(t *testing.T) {
t.SkipNow() // This test requires AWS credentials
exampleString := "Hello, world!"
rtls := &Route53TLS{
DataDir: t.TempDir(),
Email: os.Getenv("LE_EMAIL_ROUTE53"),
Domains: []string{os.Getenv("DOMAIN")},
}
tlsConfig, err := rtls.GetCertificate()
if err != nil {
t.Errorf("Route53TLSConfig failed: %v", err)
}
server := &http.Server{
Addr: ":8443",
Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
_, _ = w.Write([]byte(exampleString))
}),
TLSConfig: tlsConfig,
}
go func() {
err := server.ListenAndServeTLS("", "")
if err != http.ErrServerClosed {
t.Errorf("Failed to start server: %v", err)
}
}()
defer func() {
if err := server.Shutdown(context.Background()); err != nil {
t.Errorf("Failed to shutdown server: %v", err)
}
}()
time.Sleep(1 * time.Second)
resp, err := http.Get("https://relay.godevltd.com:8443")
if err != nil {
t.Errorf("Failed to get response: %v", err)
return
}
defer func() {
_ = resp.Body.Close()
}()
body, err := io.ReadAll(resp.Body)
if err != nil {
t.Errorf("Failed to read response body: %v", err)
}
if string(body) != exampleString {
t.Errorf("Unexpected response: %s", body)
}
}
func Test_emailFromDomain(t *testing.T) {
tests := []struct {
input string
want string
}{
{"example.com", "admin@example.com"},
{"x.example.com", "admin@example.com"},
{"x.x.example.com", "admin@example.com"},
{"*.example.com", "admin@example.com"},
{"example", ""},
{"", ""},
{".com", ""},
}
for _, tt := range tests {
t.Run("domain test", func(t *testing.T) {
if got := emailFromDomain(tt.input); got != tt.want {
t.Errorf("emailFromDomain() = %v, want %v", got, tt.want)
}
})
}
}

35
go.mod
View File

@ -12,7 +12,7 @@ require (
github.com/gorilla/mux v1.8.0
github.com/kardianos/service v1.2.3-0.20240613133416-becf2eb62b83
github.com/onsi/ginkgo v1.16.5
github.com/onsi/gomega v1.23.0
github.com/onsi/gomega v1.27.6
github.com/pion/ice/v3 v3.0.2
github.com/rs/cors v1.8.0
github.com/sirupsen/logrus v1.9.3
@ -34,6 +34,7 @@ require (
fyne.io/systray v1.11.0
github.com/TheJumpCloud/jcapi-go v3.0.0+incompatible
github.com/c-robinson/iplib v1.0.3
github.com/caddyserver/certmagic v0.21.3
github.com/cilium/ebpf v0.15.0
github.com/coreos/go-iptables v0.7.0
github.com/creack/pty v1.1.18
@ -50,11 +51,12 @@ require (
github.com/hashicorp/go-multierror v1.1.1
github.com/hashicorp/go-secure-stdlib/base62 v0.1.2
github.com/hashicorp/go-version v1.6.0
github.com/libdns/route53 v1.5.0
github.com/libp2p/go-netroute v0.2.1
github.com/magiconair/properties v1.8.7
github.com/mattn/go-sqlite3 v1.14.19
github.com/mdlayher/socket v0.4.1
github.com/miekg/dns v1.1.43
github.com/miekg/dns v1.1.59
github.com/mitchellh/hashstructure/v2 v2.0.2
github.com/nadoo/ipset v0.5.0
github.com/netbirdio/management-integrations/integrations v0.0.0-20240703085513-32605f7ffd8e
@ -63,6 +65,7 @@ require (
github.com/oschwald/maxminddb-golang v1.12.0
github.com/patrickmn/go-cache v2.1.0+incompatible
github.com/pion/logging v0.2.2
github.com/pion/randutil v0.1.0
github.com/pion/stun/v2 v2.0.0
github.com/pion/transport/v3 v3.0.1
github.com/pion/turn/v3 v3.0.1
@ -70,6 +73,7 @@ require (
github.com/rs/xid v1.3.0
github.com/shirou/gopsutil/v3 v3.24.4
github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966
github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8
github.com/stretchr/testify v1.9.0
github.com/testcontainers/testcontainers-go v0.31.0
github.com/testcontainers/testcontainers-go/modules/postgres v0.31.0
@ -81,6 +85,7 @@ require (
go.opentelemetry.io/otel/exporters/prometheus v0.48.0
go.opentelemetry.io/otel/metric v1.26.0
go.opentelemetry.io/otel/sdk/metric v1.26.0
go.uber.org/zap v1.27.0
goauthentik.io/api/v3 v3.2023051.3
golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842
golang.org/x/mobile v0.0.0-20231127183840-76ac6878050a
@ -93,6 +98,7 @@ require (
gorm.io/driver/postgres v1.5.7
gorm.io/driver/sqlite v1.5.3
gorm.io/gorm v1.25.7-0.20240204074919-46816ad31dde
nhooyr.io/websocket v1.8.11
)
require (
@ -106,8 +112,23 @@ require (
github.com/Microsoft/hcsshim v0.12.3 // indirect
github.com/XiaoMi/pegasus-go-client v0.0.0-20210427083443-f3b6b08bc4c2 // indirect
github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be // indirect
github.com/aws/aws-sdk-go-v2 v1.30.3 // indirect
github.com/aws/aws-sdk-go-v2/config v1.27.27 // indirect
github.com/aws/aws-sdk-go-v2/credentials v1.17.27 // indirect
github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.11 // indirect
github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.15 // indirect
github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.15 // indirect
github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.3 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.17 // indirect
github.com/aws/aws-sdk-go-v2/service/route53 v1.42.3 // indirect
github.com/aws/aws-sdk-go-v2/service/sso v1.22.4 // indirect
github.com/aws/aws-sdk-go-v2/service/ssooidc v1.26.4 // indirect
github.com/aws/aws-sdk-go-v2/service/sts v1.30.3 // indirect
github.com/aws/smithy-go v1.20.3 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/bradfitz/gomemcache v0.0.0-20220106215444-fb4bf637b56d // indirect
github.com/caddyserver/zerossl v0.1.3 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/containerd/containerd v1.7.16 // indirect
github.com/containerd/log v0.1.0 // indirect
@ -140,7 +161,7 @@ require (
github.com/googleapis/gax-go/v2 v2.12.3 // indirect
github.com/gopherjs/gopherjs v1.17.2 // indirect
github.com/hashicorp/errwrap v1.1.0 // indirect
github.com/hashicorp/go-uuid v1.0.2 // indirect
github.com/hashicorp/go-uuid v1.0.3 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/jackc/pgpassfile v1.0.0 // indirect
github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
@ -149,13 +170,17 @@ require (
github.com/jeandeaual/go-locale v0.0.0-20240223122105-ce5225dcaa49 // indirect
github.com/jinzhu/inflection v1.0.0 // indirect
github.com/jinzhu/now v1.1.5 // indirect
github.com/jmespath/go-jmespath v0.4.0 // indirect
github.com/josharian/native v1.1.0 // indirect
github.com/jsummers/gobmp v0.0.0-20151104160322-e2ba15ffa76e // indirect
github.com/kelseyhightower/envconfig v1.4.0 // indirect
github.com/klauspost/compress v1.17.8 // indirect
github.com/klauspost/cpuid/v2 v2.2.7 // indirect
github.com/libdns/libdns v0.2.2 // indirect
github.com/lufia/plan9stats v0.0.0-20240513124658-fba389f38bae // indirect
github.com/mdlayher/genetlink v1.3.2 // indirect
github.com/mdlayher/netlink v1.7.2 // indirect
github.com/mholt/acmez/v2 v2.0.1 // indirect
github.com/moby/docker-image-spec v1.3.1 // indirect
github.com/moby/patternmatcher v0.6.0 // indirect
github.com/moby/sys/sequential v0.5.0 // indirect
@ -164,12 +189,12 @@ require (
github.com/morikuni/aec v1.0.0 // indirect
github.com/nicksnyder/go-i18n/v2 v2.4.0 // indirect
github.com/nxadm/tail v1.4.8 // indirect
github.com/onsi/ginkgo/v2 v2.9.5 // indirect
github.com/opencontainers/go-digest v1.0.0 // indirect
github.com/opencontainers/image-spec v1.1.0 // indirect
github.com/pegasus-kv/thrift v0.13.0 // indirect
github.com/pion/dtls/v2 v2.2.10 // indirect
github.com/pion/mdns v0.0.12 // indirect
github.com/pion/randutil v0.1.0 // indirect
github.com/pion/transport/v2 v2.2.4 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
@ -186,10 +211,12 @@ require (
github.com/tklauser/numcpus v0.8.0 // indirect
github.com/vishvananda/netns v0.0.4 // indirect
github.com/yuin/goldmark v1.7.1 // indirect
github.com/zeebo/blake3 v0.2.3 // indirect
go.opencensus.io v0.24.0 // indirect
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.51.0 // indirect
go.opentelemetry.io/otel/sdk v1.26.0 // indirect
go.opentelemetry.io/otel/trace v1.26.0 // indirect
go.uber.org/multierr v1.11.0 // indirect
golang.org/x/image v0.18.0 // indirect
golang.org/x/mod v0.17.0 // indirect
golang.org/x/text v0.16.0 // indirect

79
go.sum
View File

@ -79,6 +79,34 @@ github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kd
github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
github.com/aws/aws-sdk-go-v2 v1.30.3 h1:jUeBtG0Ih+ZIFH0F4UkmL9w3cSpaMv9tYYDbzILP8dY=
github.com/aws/aws-sdk-go-v2 v1.30.3/go.mod h1:nIQjQVp5sfpQcTc9mPSr1B0PaWK5ByX9MOoDadSN4lc=
github.com/aws/aws-sdk-go-v2/config v1.27.27 h1:HdqgGt1OAP0HkEDDShEl0oSYa9ZZBSOmKpdpsDMdO90=
github.com/aws/aws-sdk-go-v2/config v1.27.27/go.mod h1:MVYamCg76dFNINkZFu4n4RjDixhVr51HLj4ErWzrVwg=
github.com/aws/aws-sdk-go-v2/credentials v1.17.27 h1:2raNba6gr2IfA0eqqiP2XiQ0UVOpGPgDSi0I9iAP+UI=
github.com/aws/aws-sdk-go-v2/credentials v1.17.27/go.mod h1:gniiwbGahQByxan6YjQUMcW4Aov6bLC3m+evgcoN4r4=
github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.11 h1:KreluoV8FZDEtI6Co2xuNk/UqI9iwMrOx/87PBNIKqw=
github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.11/go.mod h1:SeSUYBLsMYFoRvHE0Tjvn7kbxaUhl75CJi1sbfhMxkU=
github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.15 h1:SoNJ4RlFEQEbtDcCEt+QG56MY4fm4W8rYirAmq+/DdU=
github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.15/go.mod h1:U9ke74k1n2bf+RIgoX1SXFed1HLs51OgUSs+Ph0KJP8=
github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.15 h1:C6WHdGnTDIYETAm5iErQUiVNsclNx9qbJVPIt03B6bI=
github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.15/go.mod h1:ZQLZqhcu+JhSrA9/NXRm8SkDvsycE+JkV3WGY41e+IM=
github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0 h1:hT8rVHwugYE2lEfdFE0QWVo81lF7jMrYJVDWI+f+VxU=
github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0/go.mod h1:8tu/lYfQfFe6IGnaOdrpVgEL2IrrDOf6/m9RQum4NkY=
github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.3 h1:dT3MqvGhSoaIhRseqw2I0yH81l7wiR2vjs57O51EAm8=
github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.3/go.mod h1:GlAeCkHwugxdHaueRr4nhPuY+WW+gR8UjlcqzPr1SPI=
github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.17 h1:HGErhhrxZlQ044RiM+WdoZxp0p+EGM62y3L6pwA4olE=
github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.17/go.mod h1:RkZEx4l0EHYDJpWppMJ3nD9wZJAa8/0lq9aVC+r2UII=
github.com/aws/aws-sdk-go-v2/service/route53 v1.42.3 h1:MmLCRqP4U4Cw9gJ4bNrCG0mWqEtBlmAVleyelcHARMU=
github.com/aws/aws-sdk-go-v2/service/route53 v1.42.3/go.mod h1:AMPjK2YnRh0YgOID3PqhJA1BRNfXDfGOnSsKHtAe8yA=
github.com/aws/aws-sdk-go-v2/service/sso v1.22.4 h1:BXx0ZIxvrJdSgSvKTZ+yRBeSqqgPM89VPlulEcl37tM=
github.com/aws/aws-sdk-go-v2/service/sso v1.22.4/go.mod h1:ooyCOXjvJEsUw7x+ZDHeISPMhtwI3ZCB7ggFMcFfWLU=
github.com/aws/aws-sdk-go-v2/service/ssooidc v1.26.4 h1:yiwVzJW2ZxZTurVbYWA7QOrAaCYQR72t0wrSBfoesUE=
github.com/aws/aws-sdk-go-v2/service/ssooidc v1.26.4/go.mod h1:0oxfLkpz3rQ/CHlx5hB7H69YUpFiI1tql6Q6Ne+1bCw=
github.com/aws/aws-sdk-go-v2/service/sts v1.30.3 h1:ZsDKRLXGWHk8WdtyYMoGNO7bTudrvuKpDKgMVRlepGE=
github.com/aws/aws-sdk-go-v2/service/sts v1.30.3/go.mod h1:zwySh8fpFyXp9yOr/KVzxOl8SRqgf/IDw5aUt9UKFcQ=
github.com/aws/smithy-go v1.20.3 h1:ryHwveWzPV5BIof6fyDvor6V3iUL7nTfiTKXHiW05nE=
github.com/aws/smithy-go v1.20.3/go.mod h1:krry+ya/rV9RDcV/Q16kpu6ypI4K2czasz0NC3qS14E=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
@ -87,6 +115,10 @@ github.com/bradfitz/gomemcache v0.0.0-20220106215444-fb4bf637b56d h1:pVrfxiGfwel
github.com/bradfitz/gomemcache v0.0.0-20220106215444-fb4bf637b56d/go.mod h1:H0wQNHz2YrLsuXOZozoeDmnHXkNCRmMW0gwFWDfEZDA=
github.com/c-robinson/iplib v1.0.3 h1:NG0UF0GoEsrC1/vyfX1Lx2Ss7CySWl3KqqXh3q4DdPU=
github.com/c-robinson/iplib v1.0.3/go.mod h1:i3LuuFL1hRT5gFpBRnEydzw8R6yhGkF4szNDIbF8pgo=
github.com/caddyserver/certmagic v0.21.3 h1:pqRRry3yuB4CWBVq9+cUqu+Y6E2z8TswbhNx1AZeYm0=
github.com/caddyserver/certmagic v0.21.3/go.mod h1:Zq6pklO9nVRl3DIFUw9gVUfXKdpc/0qwTUAQMBlfgtI=
github.com/caddyserver/zerossl v0.1.3 h1:onS+pxp3M8HnHpN5MMbOMyNjmTheJyWRaZYwn+YTAyA=
github.com/caddyserver/zerossl v0.1.3/go.mod h1:CxA0acn7oEGO6//4rtrRjYgEoa4MFw/XofZnrYwGqG4=
github.com/cenkalti/backoff/v4 v4.1.0/go.mod h1:scbssz8iZGpm3xbr14ovlUdkxfGXNInqkPWOWmG2CLw=
github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
@ -207,6 +239,8 @@ github.com/go-quicktest/qt v1.101.0/go.mod h1:14Bz/f7NwaXPtdYEgzsx46kqSxVwTbzVZs
github.com/go-redis/redis/v8 v8.11.5 h1:AcZZR7igkdvfVmQTPnu9WE37LRrO/YrBH5zWyjDC0oI=
github.com/go-redis/redis/v8 v8.11.5/go.mod h1:gREzHqY1hg6oD9ngVRbLStwAWKhA0FEgq8Jd4h5lpwo=
github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
github.com/go-text/render v0.1.0 h1:osrmVDZNHuP1RSu3pNG7Z77Sd2xSbcb/xWytAj9kyVs=
github.com/go-text/render v0.1.0/go.mod h1:jqEuNMenrmj6QRnkdpeaP0oKGFLDNhDkVKwGjsWWYU4=
github.com/go-text/typesetting v0.1.0 h1:vioSaLPYcHwPEPLT7gsjCGDCoYSbljxoHJzMnKwVvHw=
@ -350,8 +384,9 @@ github.com/hashicorp/go-sockaddr v1.0.0/go.mod h1:7Xibr9yA9JjQq1JpNB2Vw7kxv8xerX
github.com/hashicorp/go-syslog v1.0.0/go.mod h1:qPfqrKkXGihmCqbJM2mZgkZGvKG1dFdvsLplgctolz4=
github.com/hashicorp/go-uuid v1.0.0/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
github.com/hashicorp/go-uuid v1.0.1/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
github.com/hashicorp/go-uuid v1.0.2 h1:cfejS+Tpcp13yd5nYHWDI6qVCny6wyX2Mt5SGur2IGE=
github.com/hashicorp/go-uuid v1.0.2/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
github.com/hashicorp/go-uuid v1.0.3 h1:2gKiV6YVmrJ1i2CKKa9obLvRieoRGviZFL26PcT/Co8=
github.com/hashicorp/go-uuid v1.0.3/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
github.com/hashicorp/go-version v1.6.0 h1:feTTfFNnjP967rlCxM/I9g701jU+RN74YKx2mOkIeek=
github.com/hashicorp/go-version v1.6.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
github.com/hashicorp/go.net v0.0.1/go.mod h1:hjKkEWcCURg++eb33jQU7oqQcI9XDCnUzHA0oac0k90=
@ -382,6 +417,10 @@ github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD
github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
github.com/jmespath/go-jmespath v0.4.0 h1:BEgLn5cpjn8UN1mAw4NjwDrS35OdebyEtFe+9YPoQUg=
github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo=
github.com/jmespath/go-jmespath/internal/testify v1.5.1 h1:shLQSRRSCCPj3f2gpwzGwWFoC7ycTf1rcQZHOlsJ6N8=
github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfCI6z80xFu9LTZmf1ZRjMHUOPmWr69U=
github.com/josharian/native v1.1.0 h1:uuaP0hAbW7Y4l0ZRQ6C9zfb7Mg1mbFKry/xzDAfmtLA=
github.com/josharian/native v1.1.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
github.com/json-iterator/go v0.0.0-20180612202835-f2b4162afba3/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
@ -401,6 +440,9 @@ github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI
github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
github.com/klauspost/compress v1.17.8 h1:YcnTYrq7MikUT7k0Yb5eceMmALQPYBW/Xltxn0NAMnU=
github.com/klauspost/compress v1.17.8/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
github.com/klauspost/cpuid/v2 v2.0.12/go.mod h1:g2LTdtYhdyuGPqyWyv7qRAmj1WBqxuObKfj5c0PQa7c=
github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM=
github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@ -413,6 +455,10 @@ github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/leodido/go-urn v1.1.0/go.mod h1:+cyI34gQWZcE1eQU7NVgKkkzdXDQHr1dBMtdAPozLkw=
github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
github.com/libdns/libdns v0.2.2 h1:O6ws7bAfRPaBsgAYt8MDe2HcNBGC29hkZ9MX2eUSX3s=
github.com/libdns/libdns v0.2.2/go.mod h1:4Bj9+5CQiNMVGf87wjX4CY3HQJypUHRuLvlsfsZqLWQ=
github.com/libdns/route53 v1.5.0 h1:2SKdpPFl/qgWsXQvsLNJJAoX7rSxlk7zgoL4jnWdXVA=
github.com/libdns/route53 v1.5.0/go.mod h1:joT4hKmaTNKHEwb7GmZ65eoDz1whTu7KKYPS8ZqIh6Q=
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
github.com/lufia/plan9stats v0.0.0-20240513124658-fba389f38bae h1:dIZY4ULFcto4tAFlj1FYZl8ztUZ13bdq+PLY+NOfbyI=
github.com/lufia/plan9stats v0.0.0-20240513124658-fba389f38bae/go.mod h1:ilwx/Dta8jXAgpFYFvSWEMwxmbWXyiUHkd5FwyKhb5k=
@ -431,9 +477,11 @@ github.com/mdlayher/netlink v1.7.2 h1:/UtM3ofJap7Vl4QWCPDGXY8d3GIY2UGSDbK+QWmY8/
github.com/mdlayher/netlink v1.7.2/go.mod h1:xraEF7uJbxLhc5fpHL4cPe221LI2bdttWlU+ZGLfQSw=
github.com/mdlayher/socket v0.4.1 h1:eM9y2/jlbs1M615oshPQOHZzj6R6wMT7bX5NPiQvn2U=
github.com/mdlayher/socket v0.4.1/go.mod h1:cAqeGjoufqdxWkD7DkpyS+wcefOtmu5OQ8KuoJGIReA=
github.com/mholt/acmez/v2 v2.0.1 h1:3/3N0u1pLjMK4sNEAFSI+bcvzbPhRpY383sy1kLHJ6k=
github.com/mholt/acmez/v2 v2.0.1/go.mod h1:fX4c9r5jYwMyMsC+7tkYRxHibkOTgta5DIFGoe67e1U=
github.com/miekg/dns v1.0.14/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
github.com/miekg/dns v1.1.43 h1:JKfpVSCB84vrAmHzyrsxB5NAr5kLoMXZArPSw7Qlgyg=
github.com/miekg/dns v1.1.43/go.mod h1:+evo5L0630/F6ca/Z9+GAqzhjGyn8/c+TBaOyfEl0V4=
github.com/miekg/dns v1.1.59 h1:C9EXc/UToRwKLhK5wKU/I4QVsBUc8kE6MkHBkeypWZs=
github.com/miekg/dns v1.1.59/go.mod h1:nZpewl5p6IvctfgrckopVx2OlSEHPRO/U4SYkRklrEk=
github.com/mikioh/ipaddr v0.0.0-20190404000644-d465c8ab6721 h1:RlZweED6sbSArvlE924+mUcZuXKLBHA35U7LN621Bws=
github.com/mikioh/ipaddr v0.0.0-20190404000644-d465c8ab6721/go.mod h1:Ickgr2WtCLZ2MDGd4Gr0geeCH5HybhRJbonOgQpvSxc=
github.com/mitchellh/cli v1.0.0/go.mod h1:hNIlj7HEI86fIcpObd7a0FcrxTWetlwJDGcceTlRvqc=
@ -494,14 +542,14 @@ github.com/onsi/ginkgo v1.10.1/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+
github.com/onsi/ginkgo v1.12.1/go.mod h1:zj2OWP4+oCPe1qIXoGWkgMRwljMUYCdkwsT2108oapk=
github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
github.com/onsi/ginkgo/v2 v2.4.0 h1:+Ig9nvqgS5OBSACXNk15PLdp0U9XPYROt9CFzVdFGIs=
github.com/onsi/ginkgo/v2 v2.4.0/go.mod h1:iHkDK1fKGcBoEHT5W7YBq4RFWaQulw+caOMkAt4OrFo=
github.com/onsi/ginkgo/v2 v2.9.5 h1:+6Hr4uxzP4XIUyAkg61dWBw8lb/gc4/X5luuxN/EC+Q=
github.com/onsi/ginkgo/v2 v2.9.5/go.mod h1:tvAoo1QUJwNEU2ITftXTpR7R1RbCzoZUOs3RonqW57k=
github.com/onsi/gomega v0.0.0-20170829124025-dcabb60a477c/go.mod h1:C1qb7wdrVGGVU+Z6iS04AVkA3Q65CEZX59MT0QO5uiA=
github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
github.com/onsi/gomega v1.23.0 h1:/oxKu9c2HVap+F3PfKort2Hw5DEU+HGlW8n+tguWsys=
github.com/onsi/gomega v1.23.0/go.mod h1:Z/NWtiqwBrwUt4/2loMmHL63EDLnYHmVbuBpDr2vQAg=
github.com/onsi/gomega v1.27.6 h1:ENqfyGeS5AX/rlXDd/ETokDz93u0YufY1Pgxuy/PvWE=
github.com/onsi/gomega v1.27.6/go.mod h1:PIQNjfQwkP3aQAH7lf7j87O/5FiNr+ZR8+ipb+qQlhg=
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/opencontainers/image-spec v1.1.0 h1:8SG7/vwALn54lVB/0yZ/MMwhFrPYtpEHQb2IpWsCzug=
@ -592,6 +640,8 @@ github.com/smartystreets/assertions v1.13.0/go.mod h1:wDmR7qL282YbGsPy6H/yAsesrx
github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
github.com/smartystreets/goconvey v1.7.2 h1:9RBaZCeXEQ3UselpuwUQHltGVXvdwm6cv1hgR6gDIPg=
github.com/smartystreets/goconvey v1.7.2/go.mod h1:Vw0tHAZW6lzCRk3xgdin6fKYcG+G3Pg9vgXWeJpQFMM=
github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8 h1:TG/diQgUe0pntT/2D9tmUCz4VNwm9MfrtPr0SU2qSX8=
github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8/go.mod h1:P5HUIBuIWKbyjl083/loAegFkfbFNx5i2qEP4CNbm7E=
github.com/spf13/afero v1.6.0/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z93I=
github.com/spf13/cast v1.3.1/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
github.com/spf13/cast v1.5.0 h1:rj3WzYc11XZaIZMPKmwP96zkFEnnAmV8s6XbB2aY32w=
@ -660,6 +710,12 @@ github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo
github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
github.com/zcalusic/sysinfo v1.0.2 h1:nwTTo2a+WQ0NXwo0BGRojOJvJ/5XKvQih+2RrtWqfxc=
github.com/zcalusic/sysinfo v1.0.2/go.mod h1:kluzTYflRWo6/tXVMJPdEjShsbPpsFRyy+p1mBQPC30=
github.com/zeebo/assert v1.1.0 h1:hU1L1vLTHsnO8x8c9KAR5GmM5QscxHg5RNU5z5qbUWY=
github.com/zeebo/assert v1.1.0/go.mod h1:Pq9JiuJQpG8JLJdtkwrJESF0Foym2/D9XMU5ciN/wJ0=
github.com/zeebo/blake3 v0.2.3 h1:TFoLXsjeXqRNFxSbk35Dk4YtszE/MQQGK10BH4ptoTg=
github.com/zeebo/blake3 v0.2.3/go.mod h1:mjJjZpnsyIVtVgTOSpJ9vmRE4wgDeyt2HU3qXvvKCaQ=
github.com/zeebo/pcg v1.0.1 h1:lyqfGeWiv4ahac6ttHs+I5hwtH/+1mrhlCtVNQM2kHo=
github.com/zeebo/pcg v1.0.1/go.mod h1:09F0S9iiKrwn9rlI5yjLkmrug154/YRW6KnnXVDM/l4=
go.etcd.io/etcd/api/v3 v3.5.0/go.mod h1:cbVKeC6lCfl7j/8jBhAK6aIYO9XOjdptoxU/nLQcPvs=
go.etcd.io/etcd/client/pkg/v3 v3.5.0/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
go.etcd.io/etcd/client/v2 v2.305.0/go.mod h1:h9puh54ZTgAKtEbut2oe9P4L/oqKCVB6xsXlzd7alYQ=
@ -695,8 +751,14 @@ go.opentelemetry.io/otel/trace v1.26.0/go.mod h1:4iDxvGDQuUkHve82hJJ8UqrwswHYsZu
go.opentelemetry.io/proto/otlp v1.0.0 h1:T0TX0tmXU8a3CbNXzEKGeU5mIVOdf0oykP+u2lIVU/I=
go.opentelemetry.io/proto/otlp v1.0.0/go.mod h1:Sy6pihPLfYHkr3NkUbEhGHFhINUSI/v80hjKIs5JXpM=
go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
goauthentik.io/api/v3 v3.2023051.3 h1:NebAhD/TeTWNo/9X3/Uj+rM5fG1HaiLOlKTNLQv9Qq4=
goauthentik.io/api/v3 v3.2023051.3/go.mod h1:nYECml4jGbp/541hj8GcylKQG1gVBsKppHy4+7G8u4U=
golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@ -890,7 +952,6 @@ golang.org/x/sys v0.0.0-20210104204734-6f8348627aad/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210220050731-9a76102bfb43/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210305230114-8fe3ee5dd75b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@ -1187,6 +1248,8 @@ k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8
k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
k8s.io/klog v1.0.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
k8s.io/kube-openapi v0.0.0-20191107075043-30be4d16710a/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
nhooyr.io/websocket v1.8.11 h1:f/qXNc2/3DpoSZkHt1DQu6rj4zGC8JmkkLkWss0MgN0=
nhooyr.io/websocket v1.8.11/go.mod h1:rN9OFWIUwuxg4fR5tELlYC04bXYowCP9GX47ivo2l+c=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

12
infrastructure_files/base.setup.env
View File

@ -20,6 +20,12 @@ NETBIRD_MGMT_IDP_SIGNKEY_REFRESH=${NETBIRD_MGMT_IDP_SIGNKEY_REFRESH:-false}
NETBIRD_SIGNAL_PROTOCOL="http"
NETBIRD_SIGNAL_PORT=${NETBIRD_SIGNAL_PORT:-10000}
# Relay
NETBIRD_RELAY_DOMAIN=${NETBIRD_RELAY_DOMAIN:-$NETBIRD_DOMAIN}
NETBIRD_RELAY_PORT=${NETBIRD_RELAY_PORT:-33080}
# Relay auth secret
NETBIRD_RELAY_AUTH_SECRET=
# Turn
TURN_DOMAIN=${NETBIRD_TURN_DOMAIN:-$NETBIRD_DOMAIN}
@ -69,7 +75,7 @@ NETBIRD_DASHBOARD_TAG=${NETBIRD_DASHBOARD_TAG:-"latest"}
NETBIRD_SIGNAL_TAG=${NETBIRD_SIGNAL_TAG:-"latest"}
NETBIRD_MANAGEMENT_TAG=${NETBIRD_MANAGEMENT_TAG:-"latest"}
COTURN_TAG=${COTURN_TAG:-"latest"}
NETBIRD_RELAY_TAG=${NETBIRD_RELAY_TAG:-"latest"}
# exports
export NETBIRD_DOMAIN
@ -123,3 +129,7 @@ export NETBIRD_SIGNAL_TAG
export NETBIRD_MANAGEMENT_TAG
export COTURN_TAG
export NETBIRD_TURN_EXTERNAL_IP
export NETBIRD_RELAY_DOMAIN
export NETBIRD_RELAY_PORT
export NETBIRD_RELAY_AUTH_SECRET
export NETBIRD_RELAY_TAG

5
infrastructure_files/configure.sh
View File

@ -89,6 +89,11 @@ fi
export TURN_EXTERNAL_IP_CONFIG
# if not provided, we generate a relay auth secret
if [[ "x-$NETBIRD_RELAY_AUTH_SECRET" == "x-" ]]; then
export NETBIRD_RELAY_AUTH_SECRET=$(openssl rand -base64 32 | sed 's/=//g')
fi
artifacts_path="./artifacts"
mkdir -p $artifacts_path

17
infrastructure_files/docker-compose.yml.tmpl
View File

@ -49,6 +49,23 @@ services:
options:
max-size: "500m"
max-file: "2"
# Relay
relay:
image: netbirdio/relay:$NETBIRD_RELAY_TAG
restart: unless-stopped
environment:
- NB_LOG_LEVEL=info
- NB_LISTEN_ADDRESS=:$NETBIRD_RELAY_PORT
- NB_EXPOSED_ADDRESS=$NETBIRD_RELAY_DOMAIN:$NETBIRD_RELAY_PORT
# todo: change to a secure secret
- NB_AUTH_SECRET=$NETBIRD_RELAY_AUTH_SECRET
ports:
- $NETBIRD_RELAY_PORT:$NETBIRD_RELAY_PORT
logging:
driver: "json-file"
options:
max-size: "500m"
max-file: "2"
# Management
management:

49
infrastructure_files/getting-started-with-zitadel.sh
View File

@ -103,13 +103,25 @@ wait_api() {
INSTANCE_URL=$1
PAT=$2
set +e
counter=1
while true; do
curl -s --fail -o /dev/null "$INSTANCE_URL/auth/v1/users/me" -H "Authorization: Bearer $PAT"
FLAGS="-s"
if [[ $counter -eq 45 ]]; then
FLAGS="-v"
echo ""
fi
curl $FLAGS --fail --connect-timeout 1 -o /dev/null "$INSTANCE_URL/auth/v1/users/me" -H "Authorization: Bearer $PAT"
if [[ $? -eq 0 ]]; then
break
fi
if [[ $counter -eq 45 ]]; then
echo ""
echo "Unable to connect to Zitadel for more than 45s, please check the output above, your firewall rules and the caddy container logs to confirm if there are any issues provisioning TLS certificates"
fi
echo -n " ."
sleep 1
counter=$((counter + 1))
done
echo " done"
set -e
@ -424,8 +436,10 @@ initEnvironment() {
ZITADEL_MASTERKEY="$(openssl rand -base64 32 | head -c 32)"
NETBIRD_PORT=80
NETBIRD_HTTP_PROTOCOL="http"
NETBIRD_RELAY_PROTO="rel"
TURN_USER="self"
TURN_PASSWORD=$(openssl rand -base64 32 | sed 's/=//g')
NETBIRD_RELAY_AUTH_SECRET=$(openssl rand -base64 32 | sed 's/=//g')
TURN_MIN_PORT=49152
TURN_MAX_PORT=65535
TURN_EXTERNAL_IP_CONFIG=$(get_turn_external_ip)
@ -442,6 +456,7 @@ initEnvironment() {
NETBIRD_PORT=443
CADDY_SECURE_DOMAIN=", $NETBIRD_DOMAIN:$NETBIRD_PORT"
NETBIRD_HTTP_PROTOCOL="https"
NETBIRD_RELAY_PROTO="rels"
fi
if [[ "$OSTYPE" == "darwin"* ]]; then
@ -458,7 +473,7 @@ initEnvironment() {
echo "Generated files already exist, if you want to reinitialize the environment, please remove them first."
echo "You can use the following commands:"
echo " $DOCKER_COMPOSE_COMMAND down --volumes # to remove all containers and volumes"
echo " rm -f docker-compose.yml Caddyfile zitadel.env dashboard.env machinekey/zitadel-admin-sa.token turnserver.conf management.json"
echo " rm -f docker-compose.yml Caddyfile zitadel.env dashboard.env machinekey/zitadel-admin-sa.token turnserver.conf management.json relay.env"
echo "Be aware that this will remove all data from the database, and you will have to reconfigure the dashboard."
exit 1
fi
@ -484,6 +499,7 @@ initEnvironment() {
echo "" > dashboard.env
echo "" > turnserver.conf
echo "" > management.json
echo "" > relay.env
mkdir -p machinekey
chmod 777 machinekey
@ -498,6 +514,7 @@ initEnvironment() {
renderTurnServerConf > turnserver.conf
renderManagementJson > management.json
renderDashboardEnv > dashboard.env
renderRelayEnv > relay.env
echo -e "\nStarting NetBird services\n"
$DOCKER_COMPOSE_COMMAND up -d
@ -559,6 +576,8 @@ renderCaddyfile() {
:80${CADDY_SECURE_DOMAIN} {
import security_headers
# relay
reverse_proxy /relay* relay:80
# Signal
reverse_proxy /signalexchange.SignalExchange/* h2c://signal:10000
# Management
@ -629,6 +648,11 @@ renderManagementJson() {
],
"TimeBasedCredentials": false
},
"Relay": {
"Addresses": ["$NETBIRD_RELAY_PROTO://$NETBIRD_DOMAIN:$NETBIRD_PORT"],
"CredentialsTTL": "24h",
"Secret": "$NETBIRD_RELAY_AUTH_SECRET"
},
"Signal": {
"Proto": "$NETBIRD_HTTP_PROTOCOL",
"URI": "$NETBIRD_DOMAIN:$NETBIRD_PORT"
@ -744,6 +768,15 @@ POSTGRES_PASSWORD=$POSTGRES_ROOT_PASSWORD
EOF
}
renderRelayEnv() {
cat <<EOF
NB_LOG_LEVEL=info
NB_LISTEN_ADDRESS=:80
NB_EXPOSED_ADDRESS=$NETBIRD_RELAY_PROTO://$NETBIRD_DOMAIN:$NETBIRD_PORT
NB_AUTH_SECRET=$NETBIRD_RELAY_AUTH_SECRET
EOF
}
renderDockerCompose() {
cat <<EOF
version: "3.4"
@ -782,6 +815,18 @@ services:
options:
max-size: "500m"
max-file: "2"
# Relay
relay:
image: netbirdio/relay:latest
restart: unless-stopped
networks: [netbird]
env_file:
- ./relay.env
logging:
driver: "json-file"
options:
max-size: "500m"
max-file: "2"
# Management
management:
image: netbirdio/management:latest

5
infrastructure_files/management.json.tmpl
View File

@ -20,6 +20,11 @@
"Secret": "secret",
"TimeBasedCredentials": false
},
"Relay": {
"Addresses": ["rel://$NETBIRD_RELAY_DOMAIN:$NETBIRD_RELAY_PORT"],
"CredentialsTTL": "24h",
"Secret": "$NETBIRD_RELAY_AUTH_SECRET"
},
"Signal": {
"Proto": "$NETBIRD_SIGNAL_PROTOCOL",
"URI": "$NETBIRD_DOMAIN:$NETBIRD_SIGNAL_PORT",

12
infrastructure_files/setup.env.example
View File

@ -7,6 +7,7 @@ NETBIRD_DASHBOARD_TAG=""
NETBIRD_SIGNAL_TAG=""
NETBIRD_MANAGEMENT_TAG=""
COTURN_TAG=""
NETBIRD_RELAY_TAG=""
# Dashboard domain. e.g. app.mydomain.com
NETBIRD_DOMAIN=""
@ -91,3 +92,14 @@ NETBIRD_LETSENCRYPT_EMAIL=""
NETBIRD_DISABLE_ANONYMOUS_METRICS=false
# DNS DOMAIN configures the domain name used for peer resolution. By default it is netbird.selfhosted
NETBIRD_MGMT_DNS_DOMAIN=netbird.selfhosted
# -------------------------------------------
# Relay settings
# -------------------------------------------
# Relay server domain. e.g. relay.mydomain.com
# if not specified it will assume NETBIRD_DOMAIN
NETBIRD_RELAY_DOMAIN=""
# Relay server connection port. If none is supplied
# it will default to 33080
NETBIRD_RELAY_PORT=""

1
infrastructure_files/tests/setup.env
View File

@ -26,3 +26,4 @@ NETBIRD_SIGNAL_PORT=12345
NETBIRD_STORE_CONFIG_ENGINE=$CI_NETBIRD_STORE_CONFIG_ENGINE
NETBIRD_MGMT_IDP_SIGNKEY_REFRESH=$CI_NETBIRD_MGMT_IDP_SIGNKEY_REFRESH
NETBIRD_TURN_EXTERNAL_IP=1.2.3.4
NETBIRD_RELAY_PORT=33445

5
management/client/client_test.go
View File

@ -82,8 +82,9 @@ func startManagement(t *testing.T) (*grpc.Server, net.Listener) {
if err != nil {
t.Fatal(err)
}
turnManager := mgmt.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
mgmtServer, err := mgmt.NewServer(context.Background(), config, accountManager, peersUpdateManager, turnManager, nil, nil)
secretsManager := mgmt.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay)
mgmtServer, err := mgmt.NewServer(context.Background(), config, accountManager, peersUpdateManager, secretsManager, nil, nil)
if err != nil {
t.Fatal(err)
}

8
management/cmd/management.go
View File

@ -195,7 +195,7 @@ var (
return fmt.Errorf("failed to build default manager: %v", err)
}
turnManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
secretsManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay)
trustedPeers := config.ReverseProxy.TrustedPeers
defaultTrustedPeers := []netip.Prefix{netip.MustParsePrefix("0.0.0.0/0"), netip.MustParsePrefix("::/0")}
@ -271,7 +271,7 @@ var (
ephemeralManager.LoadInitialPeers(ctx)
gRPCAPIHandler := grpc.NewServer(gRPCOpts...)
srv, err := server.NewServer(ctx, config, accountManager, peersUpdateManager, turnManager, appMetrics, ephemeralManager)
srv, err := server.NewServer(ctx, config, accountManager, peersUpdateManager, secretsManager, appMetrics, ephemeralManager)
if err != nil {
return fmt.Errorf("failed creating gRPC API handler: %v", err)
}
@ -538,6 +538,10 @@ func loadMgmtConfig(ctx context.Context, mgmtConfigPath string) (*server.Config,
}
}
if loadedConfig.Relay != nil {
log.Infof("Relay addresses: %v", loadedConfig.Relay.Addresses)
}
return loadedConfig, err
}

59
management/cmd/management_test.go Normal file
View File

@ -0,0 +1,59 @@
package cmd
import (
"context"
"os"
"testing"
)
const (
exampleConfig = `{
"Relay": {
"Addresses": [
"rel://192.168.100.1:8085",
"rel://192.168.100.1:8086"
],
"CredentialsTTL": "12h0m0s",
"Secret": "8f7e9d6c5b4a3f2e1d0c9b8a7f6e5d4c3b2a1f0e9d8c7b6a5f4e3d2c1b0a9f8"
},
"HttpConfig": {
"AuthAudience": "https://stageapp/",
"AuthIssuer": "https://something.eu.auth0.com/",
"OIDCConfigEndpoint": "https://something.eu.auth0.com/.well-known/openid-configuration"
}
}`
)
func Test_loadMgmtConfig(t *testing.T) {
tmpFile, err := createConfig()
if err != nil {
t.Fatalf("failed to create config: %s", err)
}
cfg, err := loadMgmtConfig(context.Background(), tmpFile)
if err != nil {
t.Fatalf("failed to load management config: %s", err)
}
if cfg.Relay == nil {
t.Fatalf("config is nil")
}
if len(cfg.Relay.Addresses) == 0 {
t.Fatalf("relay address is empty")
}
}
func createConfig() (string, error) {
tmpfile, err := os.CreateTemp("", "config.json")
if err != nil {
return "", err
}
_, err = tmpfile.Write([]byte(exampleConfig))
if err != nil {
return "", err
}
if err := tmpfile.Close(); err != nil {
return "", err
}
return tmpfile.Name(), nil
}

857
management/proto/management.pb.go
View File

File diff suppressed because it is too large Load Diff

9
management/proto/management.proto
View File

@ -177,6 +177,8 @@ message WiretrusteeConfig {
// a Signal server config
HostConfig signal = 3;
RelayConfig relay = 4;
}
// HostConfig describes connection properties of some server (e.g. STUN, Signal, Management)
@ -193,6 +195,13 @@ message HostConfig {
DTLS = 4;
}
}
message RelayConfig {
repeated string urls = 1;
string tokenPayload = 2;
string tokenSignature = 3;
}
// ProtectedHostConfig is similar to HostConfig but has additional user and password
// Mostly used for TURN servers
message ProtectedHostConfig {

7
management/server/config.go
View File

@ -34,6 +34,7 @@ const (
type Config struct {
Stuns []*Host
TURNConfig *TURNConfig
Relay *Relay
Signal *Host
Datadir string
@ -75,6 +76,12 @@ type TURNConfig struct {
Turns []*Host
}
type Relay struct {
Addresses []string
CredentialsTTL util.Duration
Secret string
}
// HttpServerConfig is a config of the HTTP Management service server
type HttpServerConfig struct {
LetsEncryptDomain string

88
management/server/grpcserver.go
View File

@ -16,13 +16,12 @@ import (
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
nbContext "github.com/netbirdio/netbird/management/server/context"
"github.com/netbirdio/netbird/management/server/posture"
"github.com/netbirdio/netbird/encryption"
"github.com/netbirdio/netbird/management/proto"
nbContext "github.com/netbirdio/netbird/management/server/context"
"github.com/netbirdio/netbird/management/server/jwtclaims"
nbpeer "github.com/netbirdio/netbird/management/server/peer"
"github.com/netbirdio/netbird/management/server/posture"
internalStatus "github.com/netbirdio/netbird/management/server/status"
"github.com/netbirdio/netbird/management/server/telemetry"
)
@ -34,7 +33,7 @@ type GRPCServer struct {
proto.UnimplementedManagementServiceServer
peersUpdateManager *PeersUpdateManager
config *Config
turnCredentialsManager TURNCredentialsManager
secretsManager SecretsManager
jwtValidator *jwtclaims.JWTValidator
jwtClaimsExtractor *jwtclaims.ClaimsExtractor
appMetrics telemetry.AppMetrics
@ -42,7 +41,15 @@ type GRPCServer struct {
}
// NewServer creates a new Management server
func NewServer(ctx context.Context, config *Config, accountManager AccountManager, peersUpdateManager *PeersUpdateManager, turnCredentialsManager TURNCredentialsManager, appMetrics telemetry.AppMetrics, ephemeralManager *EphemeralManager) (*GRPCServer, error) {
func NewServer(
ctx context.Context,
config *Config,
accountManager AccountManager,
peersUpdateManager *PeersUpdateManager,
secretsManager SecretsManager,
appMetrics telemetry.AppMetrics,
ephemeralManager *EphemeralManager,
) (*GRPCServer, error) {
key, err := wgtypes.GeneratePrivateKey()
if err != nil {
return nil, err
@ -91,7 +98,7 @@ func NewServer(ctx context.Context, config *Config, accountManager AccountManage
peersUpdateManager: peersUpdateManager,
accountManager: accountManager,
config: config,
turnCredentialsManager: turnCredentialsManager,
secretsManager: secretsManager,
jwtValidator: jwtValidator,
jwtClaimsExtractor: jwtClaimsExtractor,
appMetrics: appMetrics,
@ -177,9 +184,7 @@ func (s *GRPCServer) Sync(req *proto.EncryptedMessage, srv proto.ManagementServi
s.ephemeralManager.OnPeerConnected(ctx, peer)
if s.config.TURNConfig.TimeBasedCredentials {
s.turnCredentialsManager.SetupRefresh(ctx, peer.ID)
}
s.secretsManager.SetupRefresh(ctx, peer.ID)
if s.appMetrics != nil {
s.appMetrics.GRPCMetrics().CountSyncRequestDuration(time.Since(reqStart))
@ -241,7 +246,7 @@ func (s *GRPCServer) sendUpdate(ctx context.Context, accountID string, peerKey w
func (s *GRPCServer) cancelPeerRoutines(ctx context.Context, accountID string, peer *nbpeer.Peer) {
s.peersUpdateManager.CloseChannel(ctx, peer.ID)
s.turnCredentialsManager.CancelRefresh(peer.ID)
s.secretsManager.CancelRefresh(peer.ID)
_ = s.accountManager.OnPeerDisconnected(ctx, accountID, peer.Key)
s.ephemeralManager.OnPeerDisconnected(ctx, peer)
}
@ -427,9 +432,17 @@ func (s *GRPCServer) Login(ctx context.Context, req *proto.EncryptedMessage) (*p
s.ephemeralManager.OnPeerDisconnected(ctx, peer)
}
var relayToken *Token
if s.config.Relay != nil && len(s.config.Relay.Addresses) > 0 {
relayToken, err = s.secretsManager.GenerateRelayToken()
if err != nil {
log.Errorf("failed generating Relay token: %v", err)
}
}
// if peer has reached this point then it has logged in
loginResp := &proto.LoginResponse{
WiretrusteeConfig: toWiretrusteeConfig(s.config, nil),
WiretrusteeConfig: toWiretrusteeConfig(s.config, nil, relayToken),
PeerConfig: toPeerConfig(peer, netMap.Network, s.accountManager.GetDNSDomain()),
Checks: toProtocolChecks(ctx, postureChecks),
}
@ -487,10 +500,11 @@ func ToResponseProto(configProto Protocol) proto.HostConfig_Protocol {
}
}
func toWiretrusteeConfig(config *Config, turnCredentials *TURNCredentials) *proto.WiretrusteeConfig {
func toWiretrusteeConfig(config *Config, turnCredentials *Token, relayToken *Token) *proto.WiretrusteeConfig {
if config == nil {
return nil
}
var stuns []*proto.HostConfig
for _, stun := range config.Stuns {
stuns = append(stuns, &proto.HostConfig{
@ -498,13 +512,15 @@ func toWiretrusteeConfig(config *Config, turnCredentials *TURNCredentials) *prot
Protocol: ToResponseProto(stun.Proto),
})
}
var turns []*proto.ProtectedHostConfig
if config.TURNConfig != nil {
for _, turn := range config.TURNConfig.Turns {
var username string
var password string
if turnCredentials != nil {
username = turnCredentials.Username
password = turnCredentials.Password
username = turnCredentials.Payload
password = turnCredentials.Signature
} else {
username = turn.Username
password = turn.Password
@ -518,6 +534,19 @@ func toWiretrusteeConfig(config *Config, turnCredentials *TURNCredentials) *prot
Password: password,
})
}
}
var relayCfg *proto.RelayConfig
if config.Relay != nil && len(config.Relay.Addresses) > 0 {
relayCfg = &proto.RelayConfig{
Urls: config.Relay.Addresses,
}
if relayToken != nil {
relayCfg.TokenPayload = relayToken.Payload
relayCfg.TokenSignature = relayToken.Signature
}
}
return &proto.WiretrusteeConfig{
Stuns: stuns,
@ -526,6 +555,7 @@ func toWiretrusteeConfig(config *Config, turnCredentials *TURNCredentials) *prot
Uri: config.Signal.URI,
Protocol: ToResponseProto(config.Signal.Proto),
},
Relay: relayCfg,
}
}
@ -539,9 +569,9 @@ func toPeerConfig(peer *nbpeer.Peer, network *Network, dnsName string) *proto.Pe
}
}
func toSyncResponse(ctx context.Context, config *Config, peer *nbpeer.Peer, turnCredentials *TURNCredentials, networkMap *NetworkMap, dnsName string, checks []*posture.Checks, dnsCache *DNSConfigCache) *proto.SyncResponse {
func toSyncResponse(ctx context.Context, config *Config, peer *nbpeer.Peer, turnCredentials *Token, relayCredentials *Token, networkMap *NetworkMap, dnsName string, checks []*posture.Checks, dnsCache *DNSConfigCache) *proto.SyncResponse {
response := &proto.SyncResponse{
WiretrusteeConfig: toWiretrusteeConfig(config, turnCredentials),
WiretrusteeConfig: toWiretrusteeConfig(config, turnCredentials, relayCredentials),
PeerConfig: toPeerConfig(peer, networkMap.Network, dnsName),
NetworkMap: &proto.NetworkMap{
Serial: networkMap.Network.CurrentSerial(),
@ -588,15 +618,25 @@ func (s *GRPCServer) IsHealthy(ctx context.Context, req *proto.Empty) (*proto.Em
// sendInitialSync sends initial proto.SyncResponse to the peer requesting synchronization
func (s *GRPCServer) sendInitialSync(ctx context.Context, peerKey wgtypes.Key, peer *nbpeer.Peer, networkMap *NetworkMap, postureChecks []*posture.Checks, srv proto.ManagementService_SyncServer) error {
// make secret time based TURN credentials optional
var turnCredentials *TURNCredentials
if s.config.TURNConfig.TimeBasedCredentials {
creds := s.turnCredentialsManager.GenerateCredentials()
turnCredentials = &creds
} else {
turnCredentials = nil
var err error
var turnToken *Token
if s.config.TURNConfig != nil && s.config.TURNConfig.TimeBasedCredentials {
turnToken, err = s.secretsManager.GenerateTurnToken()
if err != nil {
log.Errorf("failed generating TURN token: %v", err)
}
plainResp := toSyncResponse(ctx, s.config, peer, turnCredentials, networkMap, s.accountManager.GetDNSDomain(), postureChecks, nil)
}
var relayToken *Token
if s.config.Relay != nil && len(s.config.Relay.Addresses) > 0 {
relayToken, err = s.secretsManager.GenerateRelayToken()
if err != nil {
log.Errorf("failed generating Relay token: %v", err)
}
}
plainResp := toSyncResponse(ctx, s.config, peer, turnToken, relayToken, networkMap, s.accountManager.GetDNSDomain(), postureChecks, nil)
encryptedResp, err := encryption.EncryptMessage(peerKey, s.wgKey, plainResp)
if err != nil {

5
management/server/management_proto_test.go
View File

@ -439,10 +439,11 @@ func startManagementForTest(t TestingT, config *Config) (*grpc.Server, *DefaultA
if err != nil {
return nil, nil, "", err
}
turnManager := NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
secretsManager := NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay)
ephemeralMgr := NewEphemeralManager(store, accountManager)
mgmtServer, err := NewServer(context.Background(), config, accountManager, peersUpdateManager, turnManager, nil, ephemeralMgr)
mgmtServer, err := NewServer(context.Background(), config, accountManager, peersUpdateManager, secretsManager, nil, ephemeralMgr)
if err != nil {
return nil, nil, "", err
}

5
management/server/management_test.go
View File

@ -552,8 +552,9 @@ func startServer(config *server.Config) (*grpc.Server, net.Listener) {
if err != nil {
log.Fatalf("failed creating a manager: %v", err)
}
turnManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
mgmtServer, err := server.NewServer(context.Background(), config, accountManager, peersUpdateManager, turnManager, nil, nil)
secretsManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay)
mgmtServer, err := server.NewServer(context.Background(), config, accountManager, peersUpdateManager, secretsManager, nil, nil)
Expect(err).NotTo(HaveOccurred())
mgmtProto.RegisterManagementServiceServer(s, mgmtServer)
go func() {

2
management/server/peer.go
View File

@ -964,7 +964,7 @@ func (am *DefaultAccountManager) updateAccountPeers(ctx context.Context, account
postureChecks := am.getPeerPostureChecks(account, p)
remotePeerNetworkMap := account.GetPeerNetworkMap(ctx, p.ID, customZone, approvedPeersMap, am.metrics.AccountManagerMetrics())
update := toSyncResponse(ctx, nil, p, nil, remotePeerNetworkMap, am.GetDNSDomain(), postureChecks, dnsCache)
update := toSyncResponse(ctx, nil, p, nil, nil, remotePeerNetworkMap, am.GetDNSDomain(), postureChecks, dnsCache)
am.peersUpdateManager.SendUpdate(ctx, p.ID, &UpdateMessage{Update: update})
}(peer)
}

8
management/server/peer_test.go
View File

@ -848,9 +848,9 @@ func TestToSyncResponse(t *testing.T) {
DNSLabel: "peer1",
SSHKey: "peer1-ssh-key",
}
turnCredentials := &TURNCredentials{
Username: "turn-user",
Password: "turn-pass",
turnRelayToken := &Token{
Payload: "turn-user",
Signature: "turn-pass",
}
networkMap := &NetworkMap{
Network: &Network{Net: *ipnet, Serial: 1000},
@ -916,7 +916,7 @@ func TestToSyncResponse(t *testing.T) {
}
dnsCache := &DNSConfigCache{}
response := toSyncResponse(context.Background(), config, peer, turnCredentials, networkMap, dnsName, checks, dnsCache)
response := toSyncResponse(context.Background(), config, peer, turnRelayToken, turnRelayToken, networkMap, dnsName, checks, dnsCache)
assert.NotNil(t, response)
// assert peer config

222
management/server/token_mgr.go Normal file
View File

@ -0,0 +1,222 @@
package server
import (
"context"
"crypto/sha1"
"crypto/sha256"
"fmt"
"sync"
"time"
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/management/proto"
auth "github.com/netbirdio/netbird/relay/auth/hmac"
)
const defaultDuration = 12 * time.Hour
// SecretsManager used to manage TURN and relay secrets
type SecretsManager interface {
GenerateTurnToken() (*Token, error)
GenerateRelayToken() (*Token, error)
SetupRefresh(ctx context.Context, peerKey string)
CancelRefresh(peerKey string)
}
// TimeBasedAuthSecretsManager generates credentials with TTL and using pre-shared secret known to TURN server
type TimeBasedAuthSecretsManager struct {
mux sync.Mutex
turnCfg *TURNConfig
relayCfg *Relay
turnHmacToken *auth.TimedHMAC
relayHmacToken *auth.TimedHMAC
updateManager *PeersUpdateManager
turnCancelMap map[string]chan struct{}
relayCancelMap map[string]chan struct{}
}
type Token auth.Token
func NewTimeBasedAuthSecretsManager(updateManager *PeersUpdateManager, turnCfg *TURNConfig, relayCfg *Relay) *TimeBasedAuthSecretsManager {
mgr := &TimeBasedAuthSecretsManager{
updateManager: updateManager,
turnCfg: turnCfg,
relayCfg: relayCfg,
turnCancelMap: make(map[string]chan struct{}),
relayCancelMap: make(map[string]chan struct{}),
}
if turnCfg != nil {
duration := turnCfg.CredentialsTTL.Duration
if turnCfg.CredentialsTTL.Duration <= 0 {
log.Warnf("TURN credentials TTL is not set or invalid, using default value %s", defaultDuration)
duration = defaultDuration
}
mgr.turnHmacToken = auth.NewTimedHMAC(turnCfg.Secret, duration)
}
if relayCfg != nil {
duration := relayCfg.CredentialsTTL.Duration
if relayCfg.CredentialsTTL.Duration <= 0 {
log.Warnf("Relay credentials TTL is not set or invalid, using default value %s", defaultDuration)
duration = defaultDuration
}
mgr.relayHmacToken = auth.NewTimedHMAC(relayCfg.Secret, duration)
}
return mgr
}
// GenerateTurnToken generates new time-based secret credentials for TURN
func (m *TimeBasedAuthSecretsManager) GenerateTurnToken() (*Token, error) {
if m.turnHmacToken == nil {
return nil, fmt.Errorf("TURN configuration is not set")
}
turnToken, err := m.turnHmacToken.GenerateToken(sha1.New)
if err != nil {
return nil, fmt.Errorf("failed to generate TURN token: %s", err)
}
return (*Token)(turnToken), nil
}
// GenerateRelayToken generates new time-based secret credentials for relay
func (m *TimeBasedAuthSecretsManager) GenerateRelayToken() (*Token, error) {
if m.relayHmacToken == nil {
return nil, fmt.Errorf("relay configuration is not set")
}
relayToken, err := m.relayHmacToken.GenerateToken(sha256.New)
if err != nil {
return nil, fmt.Errorf("failed to generate relay token: %s", err)
}
return (*Token)(relayToken), nil
}
func (m *TimeBasedAuthSecretsManager) cancelTURN(peerID string) {
if channel, ok := m.turnCancelMap[peerID]; ok {
close(channel)
delete(m.turnCancelMap, peerID)
}
}
func (m *TimeBasedAuthSecretsManager) cancelRelay(peerID string) {
if channel, ok := m.relayCancelMap[peerID]; ok {
close(channel)
delete(m.relayCancelMap, peerID)
}
}
// CancelRefresh cancels scheduled peer credentials refresh
func (m *TimeBasedAuthSecretsManager) CancelRefresh(peerID string) {
m.mux.Lock()
defer m.mux.Unlock()
m.cancelTURN(peerID)
m.cancelRelay(peerID)
}
// SetupRefresh starts peer credentials refresh
func (m *TimeBasedAuthSecretsManager) SetupRefresh(ctx context.Context, peerID string) {
m.mux.Lock()
defer m.mux.Unlock()
m.cancelTURN(peerID)
m.cancelRelay(peerID)
if m.turnCfg != nil && m.turnCfg.TimeBasedCredentials {
turnCancel := make(chan struct{}, 1)
m.turnCancelMap[peerID] = turnCancel
go m.refreshTURNTokens(ctx, peerID, turnCancel)
log.WithContext(ctx).Debugf("starting TURN refresh for %s", peerID)
}
if m.relayCfg != nil {
relayCancel := make(chan struct{}, 1)
m.relayCancelMap[peerID] = relayCancel
go m.refreshRelayTokens(ctx, peerID, relayCancel)
log.WithContext(ctx).Debugf("starting relay refresh for %s", peerID)
}
}
func (m *TimeBasedAuthSecretsManager) refreshTURNTokens(ctx context.Context, peerID string, cancel chan struct{}) {
ticker := time.NewTicker(m.turnCfg.CredentialsTTL.Duration / 4 * 3)
defer ticker.Stop()
for {
select {
case <-cancel:
log.WithContext(ctx).Debugf("stopping TURN refresh for %s", peerID)
return
case <-ticker.C:
m.pushNewTURNTokens(ctx, peerID)
}
}
}
func (m *TimeBasedAuthSecretsManager) refreshRelayTokens(ctx context.Context, peerID string, cancel chan struct{}) {
ticker := time.NewTicker(m.relayCfg.CredentialsTTL.Duration / 4 * 3)
defer ticker.Stop()
for {
select {
case <-cancel:
log.WithContext(ctx).Debugf("stopping relay refresh for %s", peerID)
return
case <-ticker.C:
m.pushNewRelayTokens(ctx, peerID)
}
}
}
func (m *TimeBasedAuthSecretsManager) pushNewTURNTokens(ctx context.Context, peerID string) {
turnToken, err := m.turnHmacToken.GenerateToken(sha1.New)
if err != nil {
log.Errorf("failed to generate token for peer '%s': %s", peerID, err)
return
}
var turns []*proto.ProtectedHostConfig
for _, host := range m.turnCfg.Turns {
turn := &proto.ProtectedHostConfig{
HostConfig: &proto.HostConfig{
Uri: host.URI,
Protocol: ToResponseProto(host.Proto),
},
User: turnToken.Payload,
Password: turnToken.Signature,
}
turns = append(turns, turn)
}
update := &proto.SyncResponse{
WiretrusteeConfig: &proto.WiretrusteeConfig{
Turns: turns,
// omit Relay to avoid updates there
},
}
log.WithContext(ctx).Debugf("sending new TURN credentials to peer %s", peerID)
m.updateManager.SendUpdate(ctx, peerID, &UpdateMessage{Update: update})
}
func (m *TimeBasedAuthSecretsManager) pushNewRelayTokens(ctx context.Context, peerID string) {
relayToken, err := m.relayHmacToken.GenerateToken(sha256.New)
if err != nil {
log.Errorf("failed to generate relay token for peer '%s': %s", peerID, err)
return
}
update := &proto.SyncResponse{
WiretrusteeConfig: &proto.WiretrusteeConfig{
Relay: &proto.RelayConfig{
Urls: m.relayCfg.Addresses,
TokenPayload: relayToken.Payload,
TokenSignature: relayToken.Signature,
},
// omit Turns to avoid updates there
},
}
log.WithContext(ctx).Debugf("sending new relay credentials to peer %s", peerID)
m.updateManager.SendUpdate(ctx, peerID, &UpdateMessage{Update: update})
}

218
management/server/token_mgr_test.go Normal file
View File

@ -0,0 +1,218 @@
package server
import (
"context"
"crypto/hmac"
"crypto/sha1"
"crypto/sha256"
"encoding/base64"
"hash"
"testing"
"time"
"github.com/stretchr/testify/require"
"github.com/netbirdio/netbird/management/proto"
"github.com/netbirdio/netbird/util"
)
var TurnTestHost = &Host{
Proto: UDP,
URI: "turn:turn.wiretrustee.com:77777",
Username: "username",
Password: "",
}
func TestTimeBasedAuthSecretsManager_GenerateCredentials(t *testing.T) {
ttl := util.Duration{Duration: time.Hour}
secret := "some_secret"
peersManager := NewPeersUpdateManager(nil)
rc := &Relay{
Addresses: []string{"localhost:0"},
CredentialsTTL: ttl,
Secret: secret,
}
tested := NewTimeBasedAuthSecretsManager(peersManager, &TURNConfig{
CredentialsTTL: ttl,
Secret: secret,
Turns: []*Host{TurnTestHost},
TimeBasedCredentials: true,
}, rc)
turnCredentials, err := tested.GenerateTurnToken()
require.NoError(t, err)
if turnCredentials.Payload == "" {
t.Errorf("expected generated TURN username not to be empty, got empty")
}
if turnCredentials.Signature == "" {
t.Errorf("expected generated TURN password not to be empty, got empty")
}
validateMAC(t, sha1.New, turnCredentials.Payload, turnCredentials.Signature, []byte(secret))
relayCredentials, err := tested.GenerateRelayToken()
require.NoError(t, err)
if relayCredentials.Payload == "" {
t.Errorf("expected generated relay payload not to be empty, got empty")
}
if relayCredentials.Signature == "" {
t.Errorf("expected generated relay signature not to be empty, got empty")
}
validateMAC(t, sha256.New, relayCredentials.Payload, relayCredentials.Signature, []byte(secret))
}
func TestTimeBasedAuthSecretsManager_SetupRefresh(t *testing.T) {
ttl := util.Duration{Duration: 2 * time.Second}
secret := "some_secret"
peersManager := NewPeersUpdateManager(nil)
peer := "some_peer"
updateChannel := peersManager.CreateChannel(context.Background(), peer)
rc := &Relay{
Addresses: []string{"localhost:0"},
CredentialsTTL: ttl,
Secret: secret,
}
tested := NewTimeBasedAuthSecretsManager(peersManager, &TURNConfig{
CredentialsTTL: ttl,
Secret: secret,
Turns: []*Host{TurnTestHost},
TimeBasedCredentials: true,
}, rc)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
tested.SetupRefresh(ctx, peer)
if _, ok := tested.turnCancelMap[peer]; !ok {
t.Errorf("expecting peer to be present in the turn cancel map, got not present")
}
if _, ok := tested.relayCancelMap[peer]; !ok {
t.Errorf("expecting peer to be present in the relay cancel map, got not present")
}
var updates []*UpdateMessage
loop:
for timeout := time.After(5 * time.Second); ; {
select {
case update := <-updateChannel:
updates = append(updates, update)
case <-timeout:
break loop
}
if len(updates) >= 2 {
break loop
}
}
if len(updates) < 2 {
t.Errorf("expecting at least 2 peer credentials updates, got %v", len(updates))
}
var turnUpdates, relayUpdates int
var firstTurnUpdate, secondTurnUpdate *proto.ProtectedHostConfig
var firstRelayUpdate, secondRelayUpdate *proto.RelayConfig
for _, update := range updates {
if turns := update.Update.GetWiretrusteeConfig().GetTurns(); len(turns) > 0 {
turnUpdates++
if turnUpdates == 1 {
firstTurnUpdate = turns[0]
} else {
secondTurnUpdate = turns[0]
}
}
if relay := update.Update.GetWiretrusteeConfig().GetRelay(); relay != nil {
relayUpdates++
if relayUpdates == 1 {
firstRelayUpdate = relay
} else {
secondRelayUpdate = relay
}
}
}
if turnUpdates < 1 {
t.Errorf("expecting at least 1 TURN credential update, got %v", turnUpdates)
}
if relayUpdates < 1 {
t.Errorf("expecting at least 1 relay credential update, got %v", relayUpdates)
}
if firstTurnUpdate != nil && secondTurnUpdate != nil {
if firstTurnUpdate.Password == secondTurnUpdate.Password {
t.Errorf("expecting first TURN credential update password %v to be different from second, got equal", firstTurnUpdate.Password)
}
}
if firstRelayUpdate != nil && secondRelayUpdate != nil {
if firstRelayUpdate.TokenSignature == secondRelayUpdate.TokenSignature {
t.Errorf("expecting first relay credential update signature %v to be different from second, got equal", firstRelayUpdate.TokenSignature)
}
}
}
func TestTimeBasedAuthSecretsManager_CancelRefresh(t *testing.T) {
ttl := util.Duration{Duration: time.Hour}
secret := "some_secret"
peersManager := NewPeersUpdateManager(nil)
peer := "some_peer"
rc := &Relay{
Addresses: []string{"localhost:0"},
CredentialsTTL: ttl,
Secret: secret,
}
tested := NewTimeBasedAuthSecretsManager(peersManager, &TURNConfig{
CredentialsTTL: ttl,
Secret: secret,
Turns: []*Host{TurnTestHost},
TimeBasedCredentials: true,
}, rc)
tested.SetupRefresh(context.Background(), peer)
if _, ok := tested.turnCancelMap[peer]; !ok {
t.Errorf("expecting peer to be present in turn cancel map, got not present")
}
if _, ok := tested.relayCancelMap[peer]; !ok {
t.Errorf("expecting peer to be present in relay cancel map, got not present")
}
tested.CancelRefresh(peer)
if _, ok := tested.turnCancelMap[peer]; ok {
t.Errorf("expecting peer to be not present in turn cancel map, got present")
}
if _, ok := tested.relayCancelMap[peer]; ok {
t.Errorf("expecting peer to be not present in relay cancel map, got present")
}
}
func validateMAC(t *testing.T, algo func() hash.Hash, username string, actualMAC string, key []byte) {
t.Helper()
mac := hmac.New(algo, key)
_, err := mac.Write([]byte(username))
if err != nil {
t.Fatal(err)
}
expectedMAC := mac.Sum(nil)
decodedMAC, err := base64.StdEncoding.DecodeString(actualMAC)
if err != nil {
t.Fatal(err)
}
equal := hmac.Equal(decodedMAC, expectedMAC)
if !equal {
t.Errorf("expected password MAC to be %s. got %s", expectedMAC, decodedMAC)
}
}

126
management/server/turncredentials.go
View File

@ -1,126 +0,0 @@
package server
import (
"context"
"crypto/hmac"
"crypto/sha1"
"encoding/base64"
"fmt"
"sync"
"time"
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/management/proto"
)
// TURNCredentialsManager used to manage TURN credentials
type TURNCredentialsManager interface {
GenerateCredentials() TURNCredentials
SetupRefresh(ctx context.Context, peerKey string)
CancelRefresh(peerKey string)
}
// TimeBasedAuthSecretsManager generates credentials with TTL and using pre-shared secret known to TURN server
type TimeBasedAuthSecretsManager struct {
mux sync.Mutex
config *TURNConfig
updateManager *PeersUpdateManager
cancelMap map[string]chan struct{}
}
type TURNCredentials struct {
Username string
Password string
}
func NewTimeBasedAuthSecretsManager(updateManager *PeersUpdateManager, config *TURNConfig) *TimeBasedAuthSecretsManager {
return &TimeBasedAuthSecretsManager{
mux: sync.Mutex{},
config: config,
updateManager: updateManager,
cancelMap: make(map[string]chan struct{}),
}
}
// GenerateCredentials generates new time-based secret credentials - basically username is a unix timestamp and password is a HMAC hash of a timestamp with a preshared TURN secret
func (m *TimeBasedAuthSecretsManager) GenerateCredentials() TURNCredentials {
mac := hmac.New(sha1.New, []byte(m.config.Secret))
timeAuth := time.Now().Add(m.config.CredentialsTTL.Duration).Unix()
username := fmt.Sprint(timeAuth)
_, err := mac.Write([]byte(username))
if err != nil {
log.Errorln("Generating turn password failed with error: ", err)
}
bytePassword := mac.Sum(nil)
password := base64.StdEncoding.EncodeToString(bytePassword)
return TURNCredentials{
Username: username,
Password: password,
}
}
func (m *TimeBasedAuthSecretsManager) cancel(peerID string) {
if channel, ok := m.cancelMap[peerID]; ok {
close(channel)
delete(m.cancelMap, peerID)
}
}
// CancelRefresh cancels scheduled peer credentials refresh
func (m *TimeBasedAuthSecretsManager) CancelRefresh(peerID string) {
m.mux.Lock()
defer m.mux.Unlock()
m.cancel(peerID)
}
// SetupRefresh starts peer credentials refresh. Since credentials are expiring (TTL) it is necessary to always generate them and send to the peer.
// A goroutine is created and put into TimeBasedAuthSecretsManager.cancelMap. This routine should be cancelled if peer is gone.
func (m *TimeBasedAuthSecretsManager) SetupRefresh(ctx context.Context, peerID string) {
m.mux.Lock()
defer m.mux.Unlock()
m.cancel(peerID)
cancel := make(chan struct{}, 1)
m.cancelMap[peerID] = cancel
log.WithContext(ctx).Debugf("starting turn refresh for %s", peerID)
go func() {
// we don't want to regenerate credentials right on expiration, so we do it slightly before (at 3/4 of TTL)
ticker := time.NewTicker(m.config.CredentialsTTL.Duration / 4 * 3)
for {
select {
case <-cancel:
log.WithContext(ctx).Debugf("stopping turn refresh for %s", peerID)
return
case <-ticker.C:
c := m.GenerateCredentials()
var turns []*proto.ProtectedHostConfig
for _, host := range m.config.Turns {
turns = append(turns, &proto.ProtectedHostConfig{
HostConfig: &proto.HostConfig{
Uri: host.URI,
Protocol: ToResponseProto(host.Proto),
},
User: c.Username,
Password: c.Password,
})
}
update := &proto.SyncResponse{
WiretrusteeConfig: &proto.WiretrusteeConfig{
Turns: turns,
},
}
log.WithContext(ctx).Debugf("sending new TURN credentials to peer %s", peerID)
m.updateManager.SendUpdate(ctx, peerID, &UpdateMessage{Update: update})
}
}
}()
}

136
management/server/turncredentials_test.go
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@ -1,136 +0,0 @@
package server
import (
"context"
"crypto/hmac"
"crypto/sha1"
"encoding/base64"
"testing"
"time"
"github.com/netbirdio/netbird/util"
)
var TurnTestHost = &Host{
Proto: UDP,
URI: "turn:turn.wiretrustee.com:77777",
Username: "username",
Password: "",
}
func TestTimeBasedAuthSecretsManager_GenerateCredentials(t *testing.T) {
ttl := util.Duration{Duration: time.Hour}
secret := "some_secret"
peersManager := NewPeersUpdateManager(nil)
tested := NewTimeBasedAuthSecretsManager(peersManager, &TURNConfig{
CredentialsTTL: ttl,
Secret: secret,
Turns: []*Host{TurnTestHost},
})
credentials := tested.GenerateCredentials()
if credentials.Username == "" {
t.Errorf("expected generated TURN username not to be empty, got empty")
}
if credentials.Password == "" {
t.Errorf("expected generated TURN password not to be empty, got empty")
}
validateMAC(t, credentials.Username, credentials.Password, []byte(secret))
}
func TestTimeBasedAuthSecretsManager_SetupRefresh(t *testing.T) {
ttl := util.Duration{Duration: 2 * time.Second}
secret := "some_secret"
peersManager := NewPeersUpdateManager(nil)
peer := "some_peer"
updateChannel := peersManager.CreateChannel(context.Background(), peer)
tested := NewTimeBasedAuthSecretsManager(peersManager, &TURNConfig{
CredentialsTTL: ttl,
Secret: secret,
Turns: []*Host{TurnTestHost},
})
tested.SetupRefresh(context.Background(), peer)
if _, ok := tested.cancelMap[peer]; !ok {
t.Errorf("expecting peer to be present in a cancel map, got not present")
}
var updates []*UpdateMessage
loop:
for timeout := time.After(5 * time.Second); ; {
select {
case update := <-updateChannel:
updates = append(updates, update)
case <-timeout:
break loop
}
if len(updates) >= 2 {
break loop
}
}
if len(updates) < 2 {
t.Errorf("expecting 2 peer credentials updates, got %v", len(updates))
}
firstUpdate := updates[0].Update.GetWiretrusteeConfig().Turns[0]
secondUpdate := updates[1].Update.GetWiretrusteeConfig().Turns[0]
if firstUpdate.Password == secondUpdate.Password {
t.Errorf("expecting first credential update password %v to be diffeerent from second, got equal", firstUpdate.Password)
}
}
func TestTimeBasedAuthSecretsManager_CancelRefresh(t *testing.T) {
ttl := util.Duration{Duration: time.Hour}
secret := "some_secret"
peersManager := NewPeersUpdateManager(nil)
peer := "some_peer"
tested := NewTimeBasedAuthSecretsManager(peersManager, &TURNConfig{
CredentialsTTL: ttl,
Secret: secret,
Turns: []*Host{TurnTestHost},
})
tested.SetupRefresh(context.Background(), peer)
if _, ok := tested.cancelMap[peer]; !ok {
t.Errorf("expecting peer to be present in a cancel map, got not present")
}
tested.CancelRefresh(peer)
if _, ok := tested.cancelMap[peer]; ok {
t.Errorf("expecting peer to be not present in a cancel map, got present")
}
}
func validateMAC(t *testing.T, username string, actualMAC string, key []byte) {
t.Helper()
mac := hmac.New(sha1.New, key)
_, err := mac.Write([]byte(username))
if err != nil {
t.Fatal(err)
}
expectedMAC := mac.Sum(nil)
decodedMAC, err := base64.StdEncoding.DecodeString(actualMAC)
if err != nil {
t.Fatal(err)
}
equal := hmac.Equal(decodedMAC, expectedMAC)
if !equal {
t.Errorf("expected password MAC to be %s. got %s", expectedMAC, decodedMAC)
}
}

4
relay/Dockerfile Normal file
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@ -0,0 +1,4 @@
FROM gcr.io/distroless/base:debug
ENTRYPOINT [ "/go/bin/netbird-relay" ]
ENV NB_LOG_FILE=console
COPY netbird-relay /go/bin/netbird-relay

12
relay/auth/allow/allow_all.go Normal file
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@ -0,0 +1,12 @@
package allow
import "hash"
// Auth is a Validator that allows all connections.
// Used this for testing purposes only.
type Auth struct {
}
func (a *Auth) Validate(func() hash.Hash, any) error {
return nil
}

26
relay/auth/doc.go Normal file
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@ -0,0 +1,26 @@
/*
Package auth manages the authentication process with the relay server.
Key Components:
Validator: The Validator interface defines the Validate method. Any type that provides this method can be used as a
Validator.
Methods:
Validate(func() hash.Hash, any): This method is defined in the Validator interface and is used to validate the authentication.
Usage:
To create a new AllowAllAuth validator, simply instantiate it:
validator := &allow.Auth{}
To validate the authentication, use the Validate method:
err := validator.Validate(sha256.New, any)
This package provides a simple and effective way to manage authentication with the relay server, ensuring that the
peers are authenticated properly.
*/
package auth

8
relay/auth/hmac/doc.go Normal file
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@ -0,0 +1,8 @@
/*
This package uses a similar HMAC method for authentication with the TURN server. The Management server provides the
tokens for the peers. The peers manage these tokens in the token store. The token store is a simple thread safe store
that keeps the tokens in memory. These tokens are used to authenticate the peers with the Relay server in the hello
message.
*/
package hmac

36
relay/auth/hmac/store.go Normal file
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@ -0,0 +1,36 @@
package hmac
import (
"sync"
log "github.com/sirupsen/logrus"
)
// TokenStore is a simple in-memory store for token
// With this can update the token in thread safe way
type TokenStore struct {
mu sync.Mutex
token []byte
}
func (a *TokenStore) UpdateToken(token *Token) error {
a.mu.Lock()
defer a.mu.Unlock()
if token == nil {
return nil
}
t, err := marshalToken(*token)
if err != nil {
log.Debugf("failed to marshal token: %s", err)
return err
}
a.token = t
return nil
}
func (a *TokenStore) TokenBinary() []byte {
a.mu.Lock()
defer a.mu.Unlock()
return a.token
}

105
relay/auth/hmac/token.go Normal file
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@ -0,0 +1,105 @@
package hmac
import (
"bytes"
"crypto/hmac"
"encoding/base64"
"encoding/gob"
"fmt"
"hash"
"strconv"
"time"
log "github.com/sirupsen/logrus"
)
type Token struct {
Payload string
Signature string
}
func marshalToken(token Token) ([]byte, error) {
var buffer bytes.Buffer
encoder := gob.NewEncoder(&buffer)
err := encoder.Encode(token)
if err != nil {
log.Debugf("failed to marshal token: %s", err)
return nil, fmt.Errorf("failed to marshal token: %w", err)
}
return buffer.Bytes(), nil
}
func unmarshalToken(payload []byte) (Token, error) {
var creds Token
buffer := bytes.NewBuffer(payload)
decoder := gob.NewDecoder(buffer)
err := decoder.Decode(&creds)
return creds, err
}
// TimedHMAC generates a token with TTL and uses a pre-shared secret known to the relay server
type TimedHMAC struct {
secret string
timeToLive time.Duration
}
// NewTimedHMAC creates a new TimedHMAC instance
func NewTimedHMAC(secret string, timeToLive time.Duration) *TimedHMAC {
return &TimedHMAC{
secret: secret,
timeToLive: timeToLive,
}
}
// GenerateToken generates new time-based secret token - basically Payload is a unix timestamp and Signature is a HMAC
// hash of a timestamp with a preshared TURN secret
func (m *TimedHMAC) GenerateToken(algo func() hash.Hash) (*Token, error) {
timeAuth := time.Now().Add(m.timeToLive).Unix()
timeStamp := strconv.FormatInt(timeAuth, 10)
checksum, err := m.generate(algo, timeStamp)
if err != nil {
return nil, err
}
return &Token{
Payload: timeStamp,
Signature: base64.StdEncoding.EncodeToString(checksum),
}, nil
}
// Validate checks if the token is valid
func (m *TimedHMAC) Validate(algo func() hash.Hash, token Token) error {
expectedMAC, err := m.generate(algo, token.Payload)
if err != nil {
return err
}
expectedSignature := base64.StdEncoding.EncodeToString(expectedMAC)
if !hmac.Equal([]byte(expectedSignature), []byte(token.Signature)) {
return fmt.Errorf("signature mismatch")
}
timeAuthInt, err := strconv.ParseInt(token.Payload, 10, 64)
if err != nil {
return fmt.Errorf("invalid payload: %w", err)
}
if time.Now().Unix() > timeAuthInt {
return fmt.Errorf("expired token")
}
return nil
}
func (m *TimedHMAC) generate(algo func() hash.Hash, payload string) ([]byte, error) {
mac := hmac.New(algo, []byte(m.secret))
_, err := mac.Write([]byte(payload))
if err != nil {
log.Debugf("failed to generate token: %s", err)
return nil, fmt.Errorf("failed to generate token: %w", err)
}
return mac.Sum(nil), nil
}

105
relay/auth/hmac/token_test.go Normal file
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@ -0,0 +1,105 @@
package hmac
import (
"crypto/sha1"
"crypto/sha256"
"encoding/base64"
"strconv"
"testing"
"time"
)
func TestGenerateCredentials(t *testing.T) {
secret := "secret"
timeToLive := 1 * time.Hour
v := NewTimedHMAC(secret, timeToLive)
creds, err := v.GenerateToken(sha1.New)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
if creds.Payload == "" {
t.Fatalf("expected non-empty payload")
}
_, err = strconv.ParseInt(creds.Payload, 10, 64)
if err != nil {
t.Fatalf("expected payload to be a valid unix timestamp, got %v", err)
}
_, err = base64.StdEncoding.DecodeString(creds.Signature)
if err != nil {
t.Fatalf("expected signature to be base64 encoded, got %v", err)
}
}
func TestValidateCredentials(t *testing.T) {
secret := "supersecret"
timeToLive := 1 * time.Hour
manager := NewTimedHMAC(secret, timeToLive)
// Test valid token
creds, err := manager.GenerateToken(sha1.New)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
if err := manager.Validate(sha1.New, *creds); err != nil {
t.Fatalf("expected valid token: %s", err)
}
}
func TestInvalidSignature(t *testing.T) {
secret := "supersecret"
timeToLive := 1 * time.Hour
manager := NewTimedHMAC(secret, timeToLive)
creds, err := manager.GenerateToken(sha256.New)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
invalidCreds := &Token{
Payload: creds.Payload,
Signature: "invalidsignature",
}
if err = manager.Validate(sha1.New, *invalidCreds); err == nil {
t.Fatalf("expected invalid token due to signature mismatch")
}
}
func TestExpired(t *testing.T) {
secret := "supersecret"
v := NewTimedHMAC(secret, -1*time.Hour)
expiredCreds, err := v.GenerateToken(sha256.New)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
if err = v.Validate(sha1.New, *expiredCreds); err == nil {
t.Fatalf("expected invalid token due to expiration")
}
}
func TestInvalidPayload(t *testing.T) {
secret := "supersecret"
timeToLive := 1 * time.Hour
v := NewTimedHMAC(secret, timeToLive)
creds, err := v.GenerateToken(sha256.New)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
// Test invalid payload
invalidPayloadCreds := &Token{
Payload: "invalidtimestamp",
Signature: creds.Signature,
}
if err = v.Validate(sha1.New, *invalidPayloadCreds); err == nil {
t.Fatalf("expected invalid token due to invalid payload")
}
}

33
relay/auth/hmac/validator.go Normal file
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@ -0,0 +1,33 @@
package hmac
import (
"fmt"
"hash"
"time"
log "github.com/sirupsen/logrus"
)
type TimedHMACValidator struct {
*TimedHMAC
}
func NewTimedHMACValidator(secret string, duration time.Duration) *TimedHMACValidator {
ta := NewTimedHMAC(secret, duration)
return &TimedHMACValidator{
ta,
}
}
func (a *TimedHMACValidator) Validate(algo func() hash.Hash, credentials any) error {
b, ok := credentials.([]byte)
if !ok {
return fmt.Errorf("invalid credentials type")
}
c, err := unmarshalToken(b)
if err != nil {
log.Debugf("failed to unmarshal token: %s", err)
return err
}
return a.TimedHMAC.Validate(algo, c)
}

8
relay/auth/validator.go Normal file
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@ -0,0 +1,8 @@
package auth
import "hash"
// Validator is an interface that defines the Validate method.
type Validator interface {
Validate(func() hash.Hash, any) error
}

13
relay/client/addr.go Normal file
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@ -0,0 +1,13 @@
package client
type RelayAddr struct {
addr string
}
func (a RelayAddr) Network() string {
return "relay"
}
func (a RelayAddr) String() string {
return a.addr
}

553
relay/client/client.go Normal file
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@ -0,0 +1,553 @@
package client
import (
"context"
"fmt"
"io"
"net"
"sync"
"time"
log "github.com/sirupsen/logrus"
auth "github.com/netbirdio/netbird/relay/auth/hmac"
"github.com/netbirdio/netbird/relay/client/dialer/ws"
"github.com/netbirdio/netbird/relay/healthcheck"
"github.com/netbirdio/netbird/relay/messages"
"github.com/netbirdio/netbird/relay/messages/address"
auth2 "github.com/netbirdio/netbird/relay/messages/auth"
)
const (
bufferSize = 8820
serverResponseTimeout = 8 * time.Second
)
var (
ErrConnAlreadyExists = fmt.Errorf("connection already exists")
)
type internalStopFlag struct {
sync.Mutex
stop bool
}
func newInternalStopFlag() *internalStopFlag {
return &internalStopFlag{}
}
func (isf *internalStopFlag) set() {
isf.Lock()
defer isf.Unlock()
isf.stop = true
}
func (isf *internalStopFlag) isSet() bool {
isf.Lock()
defer isf.Unlock()
return isf.stop
}
// Msg carry the payload from the server to the client. With this struct, the net.Conn can free the buffer.
type Msg struct {
Payload []byte
bufPool *sync.Pool
bufPtr *[]byte
}
func (m *Msg) Free() {
m.bufPool.Put(m.bufPtr)
}
type connContainer struct {
conn *Conn
messages chan Msg
msgChanLock sync.Mutex
closed bool // flag to check if channel is closed
}
func newConnContainer(conn *Conn, messages chan Msg) *connContainer {
return &connContainer{
conn: conn,
messages: messages,
}
}
func (cc *connContainer) writeMsg(msg Msg) {
cc.msgChanLock.Lock()
defer cc.msgChanLock.Unlock()
if cc.closed {
return
}
cc.messages <- msg
}
func (cc *connContainer) close() {
cc.msgChanLock.Lock()
defer cc.msgChanLock.Unlock()
if cc.closed {
return
}
close(cc.messages)
cc.closed = true
}
// Client is a client for the relay server. It is responsible for establishing a connection to the relay server and
// managing connections to other peers. All exported functions are safe to call concurrently. After close the connection,
// the client can be reused by calling Connect again. When the client is closed, all connections are closed too.
// While the Connect is in progress, the OpenConn function will block until the connection is established with relay server.
type Client struct {
log *log.Entry
parentCtx context.Context
connectionURL string
authTokenStore *auth.TokenStore
hashedID []byte
bufPool *sync.Pool
relayConn net.Conn
conns map[string]*connContainer
serviceIsRunning bool
mu sync.Mutex // protect serviceIsRunning and conns
readLoopMutex sync.Mutex
wgReadLoop sync.WaitGroup
instanceURL *RelayAddr
muInstanceURL sync.Mutex
onDisconnectListener func()
listenerMutex sync.Mutex
}
// NewClient creates a new client for the relay server. The client is not connected to the server until the Connect
func NewClient(ctx context.Context, serverURL string, authTokenStore *auth.TokenStore, peerID string) *Client {
hashedID, hashedStringId := messages.HashID(peerID)
return &Client{
log: log.WithField("client_id", hashedStringId),
parentCtx: ctx,
connectionURL: serverURL,
authTokenStore: authTokenStore,
hashedID: hashedID,
bufPool: &sync.Pool{
New: func() any {
buf := make([]byte, bufferSize)
return &buf
},
},
conns: make(map[string]*connContainer),
}
}
// Connect establishes a connection to the relay server. It blocks until the connection is established or an error occurs.
func (c *Client) Connect() error {
c.log.Infof("connecting to relay server: %s", c.connectionURL)
c.readLoopMutex.Lock()
defer c.readLoopMutex.Unlock()
c.mu.Lock()
defer c.mu.Unlock()
if c.serviceIsRunning {
return nil
}
err := c.connect()
if err != nil {
return err
}
c.serviceIsRunning = true
c.wgReadLoop.Add(1)
go c.readLoop(c.relayConn)
c.log.Infof("relay connection established with: %s", c.connectionURL)
return nil
}
// OpenConn create a new net.Conn for the destination peer ID. In case if the connection is in progress
// to the relay server, the function will block until the connection is established or timed out. Otherwise,
// it will return immediately.
// todo: what should happen if call with the same peerID with multiple times?
func (c *Client) OpenConn(dstPeerID string) (net.Conn, error) {
c.mu.Lock()
defer c.mu.Unlock()
if !c.serviceIsRunning {
return nil, fmt.Errorf("relay connection is not established")
}
hashedID, hashedStringID := messages.HashID(dstPeerID)
_, ok := c.conns[hashedStringID]
if ok {
return nil, ErrConnAlreadyExists
}
log.Infof("open connection to peer: %s", hashedStringID)
msgChannel := make(chan Msg, 2)
conn := NewConn(c, hashedID, hashedStringID, msgChannel, c.instanceURL)
c.conns[hashedStringID] = newConnContainer(conn, msgChannel)
return conn, nil
}
// ServerInstanceURL returns the address of the relay server. It could change after the close and reopen the connection.
func (c *Client) ServerInstanceURL() (string, error) {
c.muInstanceURL.Lock()
defer c.muInstanceURL.Unlock()
if c.instanceURL == nil {
return "", fmt.Errorf("relay connection is not established")
}
return c.instanceURL.String(), nil
}
// SetOnDisconnectListener sets a function that will be called when the connection to the relay server is closed.
func (c *Client) SetOnDisconnectListener(fn func()) {
c.listenerMutex.Lock()
defer c.listenerMutex.Unlock()
c.onDisconnectListener = fn
}
// HasConns returns true if there are connections.
func (c *Client) HasConns() bool {
c.mu.Lock()
defer c.mu.Unlock()
return len(c.conns) > 0
}
// Close closes the connection to the relay server and all connections to other peers.
func (c *Client) Close() error {
return c.close(true)
}
func (c *Client) connect() error {
conn, err := ws.Dial(c.connectionURL)
if err != nil {
return err
}
c.relayConn = conn
err = c.handShake()
if err != nil {
cErr := conn.Close()
if cErr != nil {
log.Errorf("failed to close connection: %s", cErr)
}
return err
}
return nil
}
func (c *Client) handShake() error {
authMsg := &auth2.Msg{
AuthAlgorithm: auth2.AlgoHMACSHA256,
AdditionalData: c.authTokenStore.TokenBinary(),
}
authData, err := authMsg.Marshal()
if err != nil {
return fmt.Errorf("marshal auth message: %w", err)
}
msg, err := messages.MarshalHelloMsg(c.hashedID, authData)
if err != nil {
log.Errorf("failed to marshal hello message: %s", err)
return err
}
_, err = c.relayConn.Write(msg)
if err != nil {
log.Errorf("failed to send hello message: %s", err)
return err
}
buf := make([]byte, messages.MaxHandshakeSize)
n, err := c.readWithTimeout(buf)
if err != nil {
log.Errorf("failed to read hello response: %s", err)
return err
}
_, err = messages.ValidateVersion(buf[:n])
if err != nil {
return fmt.Errorf("validate version: %w", err)
}
msgType, err := messages.DetermineServerMessageType(buf[messages.SizeOfVersionByte:n])
if err != nil {
log.Errorf("failed to determine message type: %s", err)
return err
}
if msgType != messages.MsgTypeHelloResponse {
log.Errorf("unexpected message type: %s", msgType)
return fmt.Errorf("unexpected message type")
}
additionalData, err := messages.UnmarshalHelloResponse(buf[messages.SizeOfProtoHeader:n])
if err != nil {
return err
}
addr, err := address.Unmarshal(additionalData)
if err != nil {
return fmt.Errorf("unmarshal address: %w", err)
}
c.muInstanceURL.Lock()
c.instanceURL = &RelayAddr{addr: addr.URL}
c.muInstanceURL.Unlock()
return nil
}
func (c *Client) readLoop(relayConn net.Conn) {
internallyStoppedFlag := newInternalStopFlag()
hc := healthcheck.NewReceiver()
go c.listenForStopEvents(hc, relayConn, internallyStoppedFlag)
var (
errExit error
n int
)
for {
bufPtr := c.bufPool.Get().(*[]byte)
buf := *bufPtr
n, errExit = relayConn.Read(buf)
if errExit != nil {
c.mu.Lock()
if c.serviceIsRunning && !internallyStoppedFlag.isSet() {
c.log.Debugf("failed to read message from relay server: %s", errExit)
}
c.mu.Unlock()
break
}
_, err := messages.ValidateVersion(buf[:n])
if err != nil {
c.log.Errorf("failed to validate protocol version: %s", err)
c.bufPool.Put(bufPtr)
continue
}
msgType, err := messages.DetermineServerMessageType(buf[messages.SizeOfVersionByte:n])
if err != nil {
c.log.Errorf("failed to determine message type: %s", err)
c.bufPool.Put(bufPtr)
continue
}
if !c.handleMsg(msgType, buf[messages.SizeOfProtoHeader:n], bufPtr, hc, internallyStoppedFlag) {
break
}
}
hc.Stop()
c.muInstanceURL.Lock()
c.instanceURL = nil
c.muInstanceURL.Unlock()
c.notifyDisconnected()
c.wgReadLoop.Done()
_ = c.close(false)
}
func (c *Client) handleMsg(msgType messages.MsgType, buf []byte, bufPtr *[]byte, hc *healthcheck.Receiver, internallyStoppedFlag *internalStopFlag) (continueLoop bool) {
switch msgType {
case messages.MsgTypeHealthCheck:
c.handleHealthCheck(hc, internallyStoppedFlag)
c.bufPool.Put(bufPtr)
case messages.MsgTypeTransport:
return c.handleTransportMsg(buf, bufPtr, internallyStoppedFlag)
case messages.MsgTypeClose:
log.Debugf("relay connection close by server")
c.bufPool.Put(bufPtr)
return false
}
return true
}
func (c *Client) handleHealthCheck(hc *healthcheck.Receiver, internallyStoppedFlag *internalStopFlag) {
msg := messages.MarshalHealthcheck()
_, wErr := c.relayConn.Write(msg)
if wErr != nil {
if c.serviceIsRunning && !internallyStoppedFlag.isSet() {
c.log.Errorf("failed to send heartbeat: %s", wErr)
}
}
hc.Heartbeat()
}
func (c *Client) handleTransportMsg(buf []byte, bufPtr *[]byte, internallyStoppedFlag *internalStopFlag) bool {
peerID, payload, err := messages.UnmarshalTransportMsg(buf)
if err != nil {
if c.serviceIsRunning && !internallyStoppedFlag.isSet() {
c.log.Errorf("failed to parse transport message: %v", err)
}
c.bufPool.Put(bufPtr)
return true
}
stringID := messages.HashIDToString(peerID)
c.mu.Lock()
if !c.serviceIsRunning {
c.mu.Unlock()
c.bufPool.Put(bufPtr)
return false
}
container, ok := c.conns[stringID]
c.mu.Unlock()
if !ok {
c.log.Errorf("peer not found: %s", stringID)
c.bufPool.Put(bufPtr)
return true
}
msg := Msg{
bufPool: c.bufPool,
bufPtr: bufPtr,
Payload: payload,
}
container.writeMsg(msg)
return true
}
func (c *Client) writeTo(connReference *Conn, id string, dstID []byte, payload []byte) (int, error) {
c.mu.Lock()
conn, ok := c.conns[id]
c.mu.Unlock()
if !ok {
return 0, io.EOF
}
if conn.conn != connReference {
return 0, io.EOF
}
// todo: use buffer pool instead of create new transport msg.
msg, err := messages.MarshalTransportMsg(dstID, payload)
if err != nil {
log.Errorf("failed to marshal transport message: %s", err)
return 0, err
}
// the write always return with 0 length because the underling does not support the size feedback.
_, err = c.relayConn.Write(msg)
if err != nil {
log.Errorf("failed to write transport message: %s", err)
}
return len(payload), err
}
func (c *Client) listenForStopEvents(hc *healthcheck.Receiver, conn net.Conn, internalStopFlag *internalStopFlag) {
for {
select {
case _, ok := <-hc.OnTimeout:
if !ok {
return
}
c.log.Errorf("health check timeout")
internalStopFlag.set()
_ = conn.Close() // ignore the err because the readLoop will handle it
return
case <-c.parentCtx.Done():
err := c.close(true)
if err != nil {
log.Errorf("failed to teardown connection: %s", err)
}
return
}
}
}
func (c *Client) closeAllConns() {
for _, container := range c.conns {
container.close()
}
c.conns = make(map[string]*connContainer)
}
func (c *Client) closeConn(connReference *Conn, id string) error {
c.mu.Lock()
defer c.mu.Unlock()
container, ok := c.conns[id]
if !ok {
return fmt.Errorf("connection already closed")
}
if container.conn != connReference {
return fmt.Errorf("conn reference mismatch")
}
container.close()
delete(c.conns, id)
return nil
}
func (c *Client) close(gracefullyExit bool) error {
c.readLoopMutex.Lock()
defer c.readLoopMutex.Unlock()
c.mu.Lock()
var err error
if !c.serviceIsRunning {
c.mu.Unlock()
return nil
}
c.serviceIsRunning = false
c.closeAllConns()
if gracefullyExit {
c.writeCloseMsg()
}
err = c.relayConn.Close()
c.mu.Unlock()
c.wgReadLoop.Wait()
c.log.Infof("relay connection closed with: %s", c.connectionURL)
return err
}
func (c *Client) notifyDisconnected() {
c.listenerMutex.Lock()
defer c.listenerMutex.Unlock()
if c.onDisconnectListener == nil {
return
}
go c.onDisconnectListener()
}
func (c *Client) writeCloseMsg() {
msg := messages.MarshalCloseMsg()
_, err := c.relayConn.Write(msg)
if err != nil {
c.log.Errorf("failed to send close message: %s", err)
}
}
func (c *Client) readWithTimeout(buf []byte) (int, error) {
ctx, cancel := context.WithTimeout(c.parentCtx, serverResponseTimeout)
defer cancel()
readDone := make(chan struct{})
var (
n int
err error
)
go func() {
n, err = c.relayConn.Read(buf)
close(readDone)
}()
select {
case <-ctx.Done():
return 0, fmt.Errorf("read operation timed out")
case <-readDone:
return n, err
}
}

631
relay/client/client_test.go Normal file
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@ -0,0 +1,631 @@
package client
import (
"context"
"net"
"os"
"testing"
"time"
log "github.com/sirupsen/logrus"
"go.opentelemetry.io/otel"
"github.com/netbirdio/netbird/relay/auth/allow"
"github.com/netbirdio/netbird/relay/auth/hmac"
"github.com/netbirdio/netbird/util"
"github.com/netbirdio/netbird/relay/server"
)
var (
av = &allow.Auth{}
hmacTokenStore = &hmac.TokenStore{}
serverListenAddr = "127.0.0.1:1234"
serverURL = "rel://127.0.0.1:1234"
)
func TestMain(m *testing.M) {
_ = util.InitLog("error", "console")
code := m.Run()
os.Exit(code)
}
func TestClient(t *testing.T) {
ctx := context.Background()
srv, err := server.NewServer(otel.Meter(""), serverURL, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
listenCfg := server.ListenerConfig{Address: serverListenAddr}
err := srv.Listen(listenCfg)
if err != nil {
errChan <- err
}
}()
defer func() {
err := srv.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
// wait for server to start
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
t.Log("alice connecting to server")
clientAlice := NewClient(ctx, serverURL, hmacTokenStore, "alice")
err = clientAlice.Connect()
if err != nil {
t.Fatalf("failed to connect to server: %s", err)
}
defer clientAlice.Close()
t.Log("placeholder connecting to server")
clientPlaceHolder := NewClient(ctx, serverURL, hmacTokenStore, "clientPlaceHolder")
err = clientPlaceHolder.Connect()
if err != nil {
t.Fatalf("failed to connect to server: %s", err)
}
defer clientPlaceHolder.Close()
t.Log("Bob connecting to server")
clientBob := NewClient(ctx, serverURL, hmacTokenStore, "bob")
err = clientBob.Connect()
if err != nil {
t.Fatalf("failed to connect to server: %s", err)
}
defer clientBob.Close()
t.Log("Alice open connection to Bob")
connAliceToBob, err := clientAlice.OpenConn("bob")
if err != nil {
t.Fatalf("failed to bind channel: %s", err)
}
t.Log("Bob open connection to Alice")
connBobToAlice, err := clientBob.OpenConn("alice")
if err != nil {
t.Fatalf("failed to bind channel: %s", err)
}
payload := "hello bob, I am alice"
_, err = connAliceToBob.Write([]byte(payload))
if err != nil {
t.Fatalf("failed to write to channel: %s", err)
}
log.Debugf("alice sent message to bob")
buf := make([]byte, 65535)
n, err := connBobToAlice.Read(buf)
if err != nil {
t.Fatalf("failed to read from channel: %s", err)
}
log.Debugf("on new message from alice to bob")
if payload != string(buf[:n]) {
t.Fatalf("expected %s, got %s", payload, string(buf[:n]))
}
}
func TestRegistration(t *testing.T) {
ctx := context.Background()
srvCfg := server.ListenerConfig{Address: serverListenAddr}
srv, err := server.NewServer(otel.Meter(""), serverURL, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv.Listen(srvCfg)
if err != nil {
errChan <- err
}
}()
// wait for server to start
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
clientAlice := NewClient(ctx, serverURL, hmacTokenStore, "alice")
err = clientAlice.Connect()
if err != nil {
_ = srv.Shutdown(ctx)
t.Fatalf("failed to connect to server: %s", err)
}
err = clientAlice.Close()
if err != nil {
t.Errorf("failed to close conn: %s", err)
}
err = srv.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}
func TestRegistrationTimeout(t *testing.T) {
ctx := context.Background()
fakeUDPListener, err := net.ListenUDP("udp", &net.UDPAddr{
Port: 1234,
IP: net.ParseIP("0.0.0.0"),
})
if err != nil {
t.Fatalf("failed to bind UDP server: %s", err)
}
defer func(fakeUDPListener *net.UDPConn) {
_ = fakeUDPListener.Close()
}(fakeUDPListener)
fakeTCPListener, err := net.ListenTCP("tcp", &net.TCPAddr{
Port: 1234,
IP: net.ParseIP("0.0.0.0"),
})
if err != nil {
t.Fatalf("failed to bind TCP server: %s", err)
}
defer func(fakeTCPListener *net.TCPListener) {
_ = fakeTCPListener.Close()
}(fakeTCPListener)
clientAlice := NewClient(ctx, "127.0.0.1:1234", hmacTokenStore, "alice")
err = clientAlice.Connect()
if err == nil {
t.Errorf("failed to connect to server: %s", err)
}
log.Debugf("%s", err)
err = clientAlice.Close()
if err != nil {
t.Errorf("failed to close conn: %s", err)
}
}
func TestEcho(t *testing.T) {
ctx := context.Background()
idAlice := "alice"
idBob := "bob"
srvCfg := server.ListenerConfig{Address: serverListenAddr}
srv, err := server.NewServer(otel.Meter(""), serverURL, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv.Listen(srvCfg)
if err != nil {
errChan <- err
}
}()
defer func() {
err := srv.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
// wait for servers to start
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
clientAlice := NewClient(ctx, serverURL, hmacTokenStore, idAlice)
err = clientAlice.Connect()
if err != nil {
t.Fatalf("failed to connect to server: %s", err)
}
defer func() {
err := clientAlice.Close()
if err != nil {
t.Errorf("failed to close Alice client: %s", err)
}
}()
clientBob := NewClient(ctx, serverURL, hmacTokenStore, idBob)
err = clientBob.Connect()
if err != nil {
t.Fatalf("failed to connect to server: %s", err)
}
defer func() {
err := clientBob.Close()
if err != nil {
t.Errorf("failed to close Bob client: %s", err)
}
}()
connAliceToBob, err := clientAlice.OpenConn(idBob)
if err != nil {
t.Fatalf("failed to bind channel: %s", err)
}
connBobToAlice, err := clientBob.OpenConn(idAlice)
if err != nil {
t.Fatalf("failed to bind channel: %s", err)
}
payload := "hello bob, I am alice"
_, err = connAliceToBob.Write([]byte(payload))
if err != nil {
t.Fatalf("failed to write to channel: %s", err)
}
buf := make([]byte, 65535)
n, err := connBobToAlice.Read(buf)
if err != nil {
t.Fatalf("failed to read from channel: %s", err)
}
_, err = connBobToAlice.Write(buf[:n])
if err != nil {
t.Fatalf("failed to write to channel: %s", err)
}
n, err = connAliceToBob.Read(buf)
if err != nil {
t.Fatalf("failed to read from channel: %s", err)
}
if payload != string(buf[:n]) {
t.Fatalf("expected %s, got %s", payload, string(buf[:n]))
}
}
func TestBindToUnavailabePeer(t *testing.T) {
ctx := context.Background()
srvCfg := server.ListenerConfig{Address: serverListenAddr}
srv, err := server.NewServer(otel.Meter(""), serverURL, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv.Listen(srvCfg)
if err != nil {
errChan <- err
}
}()
defer func() {
log.Infof("closing server")
err := srv.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
// wait for servers to start
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
clientAlice := NewClient(ctx, serverURL, hmacTokenStore, "alice")
err = clientAlice.Connect()
if err != nil {
t.Errorf("failed to connect to server: %s", err)
}
_, err = clientAlice.OpenConn("bob")
if err != nil {
t.Errorf("failed to bind channel: %s", err)
}
log.Infof("closing client")
err = clientAlice.Close()
if err != nil {
t.Errorf("failed to close client: %s", err)
}
}
func TestBindReconnect(t *testing.T) {
ctx := context.Background()
srvCfg := server.ListenerConfig{Address: serverListenAddr}
srv, err := server.NewServer(otel.Meter(""), serverURL, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv.Listen(srvCfg)
if err != nil {
errChan <- err
}
}()
defer func() {
log.Infof("closing server")
err := srv.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
// wait for servers to start
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
clientAlice := NewClient(ctx, serverURL, hmacTokenStore, "alice")
err = clientAlice.Connect()
if err != nil {
t.Errorf("failed to connect to server: %s", err)
}
_, err = clientAlice.OpenConn("bob")
if err != nil {
t.Errorf("failed to bind channel: %s", err)
}
clientBob := NewClient(ctx, serverURL, hmacTokenStore, "bob")
err = clientBob.Connect()
if err != nil {
t.Errorf("failed to connect to server: %s", err)
}
chBob, err := clientBob.OpenConn("alice")
if err != nil {
t.Errorf("failed to bind channel: %s", err)
}
log.Infof("closing client Alice")
err = clientAlice.Close()
if err != nil {
t.Errorf("failed to close client: %s", err)
}
clientAlice = NewClient(ctx, serverURL, hmacTokenStore, "alice")
err = clientAlice.Connect()
if err != nil {
t.Errorf("failed to connect to server: %s", err)
}
chAlice, err := clientAlice.OpenConn("bob")
if err != nil {
t.Errorf("failed to bind channel: %s", err)
}
testString := "hello alice, I am bob"
_, err = chBob.Write([]byte(testString))
if err != nil {
t.Errorf("failed to write to channel: %s", err)
}
buf := make([]byte, 65535)
n, err := chAlice.Read(buf)
if err != nil {
t.Errorf("failed to read from channel: %s", err)
}
if testString != string(buf[:n]) {
t.Errorf("expected %s, got %s", testString, string(buf[:n]))
}
log.Infof("closing client")
err = clientAlice.Close()
if err != nil {
t.Errorf("failed to close client: %s", err)
}
}
func TestCloseConn(t *testing.T) {
ctx := context.Background()
srvCfg := server.ListenerConfig{Address: serverListenAddr}
srv, err := server.NewServer(otel.Meter(""), serverURL, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv.Listen(srvCfg)
if err != nil {
errChan <- err
}
}()
defer func() {
log.Infof("closing server")
err := srv.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
// wait for servers to start
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
clientAlice := NewClient(ctx, serverURL, hmacTokenStore, "alice")
err = clientAlice.Connect()
if err != nil {
t.Errorf("failed to connect to server: %s", err)
}
conn, err := clientAlice.OpenConn("bob")
if err != nil {
t.Errorf("failed to bind channel: %s", err)
}
log.Infof("closing connection")
err = conn.Close()
if err != nil {
t.Errorf("failed to close connection: %s", err)
}
_, err = conn.Read(make([]byte, 1))
if err == nil {
t.Errorf("unexpected reading from closed connection")
}
_, err = conn.Write([]byte("hello"))
if err == nil {
t.Errorf("unexpected writing from closed connection")
}
}
func TestCloseRelayConn(t *testing.T) {
ctx := context.Background()
srvCfg := server.ListenerConfig{Address: serverListenAddr}
srv, err := server.NewServer(otel.Meter(""), serverURL, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv.Listen(srvCfg)
if err != nil {
errChan <- err
}
}()
defer func() {
err := srv.Shutdown(ctx)
if err != nil {
log.Errorf("failed to close server: %s", err)
}
}()
// wait for servers to start
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
clientAlice := NewClient(ctx, serverURL, hmacTokenStore, "alice")
err = clientAlice.Connect()
if err != nil {
t.Fatalf("failed to connect to server: %s", err)
}
conn, err := clientAlice.OpenConn("bob")
if err != nil {
t.Errorf("failed to bind channel: %s", err)
}
_ = clientAlice.relayConn.Close()
_, err = conn.Read(make([]byte, 1))
if err == nil {
t.Errorf("unexpected reading from closed connection")
}
_, err = clientAlice.OpenConn("bob")
if err == nil {
t.Errorf("unexpected opening connection to closed server")
}
}
func TestCloseByServer(t *testing.T) {
ctx := context.Background()
srvCfg := server.ListenerConfig{Address: serverListenAddr}
srv1, err := server.NewServer(otel.Meter(""), serverURL, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv1.Listen(srvCfg)
if err != nil {
errChan <- err
}
}()
// wait for servers to start
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
idAlice := "alice"
log.Debugf("connect by alice")
relayClient := NewClient(ctx, serverURL, hmacTokenStore, idAlice)
err = relayClient.Connect()
if err != nil {
log.Fatalf("failed to connect to server: %s", err)
}
disconnected := make(chan struct{})
relayClient.SetOnDisconnectListener(func() {
log.Infof("client disconnected")
close(disconnected)
})
err = srv1.Shutdown(ctx)
if err != nil {
t.Fatalf("failed to close server: %s", err)
}
select {
case <-disconnected:
case <-time.After(3 * time.Second):
log.Fatalf("timeout waiting for client to disconnect")
}
_, err = relayClient.OpenConn("bob")
if err == nil {
t.Errorf("unexpected opening connection to closed server")
}
}
func TestCloseByClient(t *testing.T) {
ctx := context.Background()
srvCfg := server.ListenerConfig{Address: serverListenAddr}
srv, err := server.NewServer(otel.Meter(""), serverURL, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv.Listen(srvCfg)
if err != nil {
errChan <- err
}
}()
// wait for servers to start
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
idAlice := "alice"
log.Debugf("connect by alice")
relayClient := NewClient(ctx, serverURL, hmacTokenStore, idAlice)
err = relayClient.Connect()
if err != nil {
log.Fatalf("failed to connect to server: %s", err)
}
err = relayClient.Close()
if err != nil {
t.Errorf("failed to close client: %s", err)
}
_, err = relayClient.OpenConn("bob")
if err == nil {
t.Errorf("unexpected opening connection to closed server")
}
err = srv.Shutdown(ctx)
if err != nil {
t.Fatalf("failed to close server: %s", err)
}
}
func waitForServerToStart(errChan chan error) error {
select {
case err := <-errChan:
if err != nil {
return err
}
case <-time.After(300 * time.Millisecond):
return nil
}
return nil
}

76
relay/client/conn.go Normal file
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@ -0,0 +1,76 @@
package client
import (
"io"
"net"
"time"
)
// Conn represent a connection to a relayed remote peer.
type Conn struct {
client *Client
dstID []byte
dstStringID string
messageChan chan Msg
instanceURL *RelayAddr
}
// NewConn creates a new connection to a relayed remote peer.
// client: the client instance, it used to send messages to the destination peer
// dstID: the destination peer ID
// dstStringID: the destination peer ID in string format
// messageChan: the channel where the messages will be received
// instanceURL: the relay instance URL, it used to get the proper server instance address for the remote peer
func NewConn(client *Client, dstID []byte, dstStringID string, messageChan chan Msg, instanceURL *RelayAddr) *Conn {
c := &Conn{
client: client,
dstID: dstID,
dstStringID: dstStringID,
messageChan: messageChan,
instanceURL: instanceURL,
}
return c
}
func (c *Conn) Write(p []byte) (n int, err error) {
return c.client.writeTo(c, c.dstStringID, c.dstID, p)
}
func (c *Conn) Read(b []byte) (n int, err error) {
msg, ok := <-c.messageChan
if !ok {
return 0, io.EOF
}
n = copy(b, msg.Payload)
msg.Free()
return n, nil
}
func (c *Conn) Close() error {
return c.client.closeConn(c, c.dstStringID)
}
func (c *Conn) LocalAddr() net.Addr {
return c.client.relayConn.LocalAddr()
}
func (c *Conn) RemoteAddr() net.Addr {
return c.instanceURL
}
func (c *Conn) SetDeadline(t time.Time) error {
//TODO implement me
panic("SetDeadline is not implemented")
}
func (c *Conn) SetReadDeadline(t time.Time) error {
//TODO implement me
panic("SetReadDeadline is not implemented")
}
func (c *Conn) SetWriteDeadline(t time.Time) error {
//TODO implement me
panic("SetReadDeadline is not implemented")
}

13
relay/client/dialer/ws/addr.go Normal file
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@ -0,0 +1,13 @@
package ws
type WebsocketAddr struct {
addr string
}
func (a WebsocketAddr) Network() string {
return "websocket"
}
func (a WebsocketAddr) String() string {
return a.addr
}

66
relay/client/dialer/ws/conn.go Normal file
View File

@ -0,0 +1,66 @@
package ws
import (
"context"
"fmt"
"net"
"time"
"nhooyr.io/websocket"
)
type Conn struct {
ctx context.Context
*websocket.Conn
remoteAddr WebsocketAddr
}
func NewConn(wsConn *websocket.Conn, serverAddress string) net.Conn {
return &Conn{
ctx: context.Background(),
Conn: wsConn,
remoteAddr: WebsocketAddr{serverAddress},
}
}
func (c *Conn) Read(b []byte) (n int, err error) {
t, ioReader, err := c.Conn.Reader(c.ctx)
if err != nil {
return 0, err
}
if t != websocket.MessageBinary {
return 0, fmt.Errorf("unexpected message type")
}
return ioReader.Read(b)
}
func (c *Conn) Write(b []byte) (n int, err error) {
err = c.Conn.Write(c.ctx, websocket.MessageBinary, b)
return 0, err
}
func (c *Conn) RemoteAddr() net.Addr {
return c.remoteAddr
}
func (c *Conn) LocalAddr() net.Addr {
return WebsocketAddr{addr: "unknown"}
}
func (c *Conn) SetReadDeadline(t time.Time) error {
return fmt.Errorf("SetReadDeadline is not implemented")
}
func (c *Conn) SetWriteDeadline(t time.Time) error {
return fmt.Errorf("SetWriteDeadline is not implemented")
}
func (c *Conn) SetDeadline(t time.Time) error {
return fmt.Errorf("SetDeadline is not implemented")
}
func (c *Conn) Close() error {
return c.Conn.CloseNow()
}

67
relay/client/dialer/ws/ws.go Normal file
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package ws
import (
"context"
"fmt"
"net"
"net/http"
"net/url"
"strings"
log "github.com/sirupsen/logrus"
"nhooyr.io/websocket"
"github.com/netbirdio/netbird/relay/server/listener/ws"
nbnet "github.com/netbirdio/netbird/util/net"
)
func Dial(address string) (net.Conn, error) {
wsURL, err := prepareURL(address)
if err != nil {
return nil, err
}
opts := &websocket.DialOptions{
HTTPClient: httpClientNbDialer(),
}
parsedURL, err := url.Parse(wsURL)
if err != nil {
return nil, err
}
parsedURL.Path = ws.URLPath
wsConn, resp, err := websocket.Dial(context.Background(), parsedURL.String(), opts)
if err != nil {
log.Errorf("failed to dial to Relay server '%s': %s", wsURL, err)
return nil, err
}
if resp.Body != nil {
_ = resp.Body.Close()
}
conn := NewConn(wsConn, address)
return conn, nil
}
func prepareURL(address string) (string, error) {
if !strings.HasPrefix(address, "rel:") && !strings.HasPrefix(address, "rels:") {
return "", fmt.Errorf("unsupported scheme: %s", address)
}
return strings.Replace(address, "rel", "ws", 1), nil
}
func httpClientNbDialer() *http.Client {
customDialer := nbnet.NewDialer()
customTransport := &http.Transport{
DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
return customDialer.DialContext(ctx, network, addr)
},
}
return &http.Client{
Transport: customTransport,
}
}

12
relay/client/doc.go Normal file
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/*
Package client contains the implementation of the Relay client.
The Relay client is responsible for establishing a connection with the Relay server and sending and receiving messages,
Keep persistent connection with the Relay server and handle the connection issues.
It uses the WebSocket protocol for communication and optionally supports TLS (Transport Layer Security).
If a peer wants to communicate with a peer on a different relay server, the manager will establish a new connection to
the relay server. The connection with these relay servers will be closed if there is no active connection. The peers
negotiate the common relay instance via signaling service.
*/
package client

48
relay/client/guard.go Normal file
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package client
import (
"context"
"time"
log "github.com/sirupsen/logrus"
)
var (
reconnectingTimeout = 5 * time.Second
)
// Guard manage the reconnection tries to the Relay server in case of disconnection event.
type Guard struct {
ctx context.Context
relayClient *Client
}
// NewGuard creates a new guard for the relay client.
func NewGuard(context context.Context, relayClient *Client) *Guard {
g := &Guard{
ctx: context,
relayClient: relayClient,
}
return g
}
// OnDisconnected is called when the relay client is disconnected from the relay server. It will trigger the reconnection
// todo prevent multiple reconnection instances. In the current usage it should not happen, but it is better to prevent
func (g *Guard) OnDisconnected() {
ticker := time.NewTicker(reconnectingTimeout)
defer ticker.Stop()
for {
select {
case <-ticker.C:
err := g.relayClient.Connect()
if err != nil {
log.Errorf("failed to reconnect to relay server: %s", err)
continue
}
return
case <-g.ctx.Done():
return
}
}
}

365
relay/client/manager.go Normal file
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package client
import (
"container/list"
"context"
"errors"
"fmt"
"net"
"reflect"
"sync"
"time"
log "github.com/sirupsen/logrus"
relayAuth "github.com/netbirdio/netbird/relay/auth/hmac"
)
var (
relayCleanupInterval = 60 * time.Second
connectionTimeout = 30 * time.Second
maxConcurrentServers = 7
ErrRelayClientNotConnected = fmt.Errorf("relay client not connected")
)
// RelayTrack hold the relay clients for the foreign relay servers.
// With the mutex can ensure we can open new connection in case the relay connection has been established with
// the relay server.
type RelayTrack struct {
sync.RWMutex
relayClient *Client
}
func NewRelayTrack() *RelayTrack {
return &RelayTrack{}
}
type OnServerCloseListener func()
// ManagerService is the interface for the relay manager.
type ManagerService interface {
Serve() error
OpenConn(serverAddress, peerKey string) (net.Conn, error)
AddCloseListener(serverAddress string, onClosedListener OnServerCloseListener) error
RelayInstanceAddress() (string, error)
ServerURLs() []string
HasRelayAddress() bool
UpdateToken(token *relayAuth.Token) error
}
// Manager is a manager for the relay client instances. It establishes one persistent connection to the given relay URL
// and automatically reconnect to them in case disconnection.
// The manager also manage temporary relay connection. If a client wants to communicate with a client on a
// different relay server, the manager will establish a new connection to the relay server. The connection with these
// relay servers will be closed if there is no active connection. Periodically the manager will check if there is any
// unused relay connection and close it.
type Manager struct {
ctx context.Context
serverURLs []string
peerID string
tokenStore *relayAuth.TokenStore
relayClient *Client
reconnectGuard *Guard
relayClients map[string]*RelayTrack
relayClientsMutex sync.RWMutex
onDisconnectedListeners map[string]*list.List
listenerLock sync.Mutex
}
// NewManager creates a new manager instance.
// The serverURL address can be empty. In this case, the manager will not serve.
func NewManager(ctx context.Context, serverURLs []string, peerID string) *Manager {
return &Manager{
ctx: ctx,
serverURLs: serverURLs,
peerID: peerID,
tokenStore: &relayAuth.TokenStore{},
relayClients: make(map[string]*RelayTrack),
onDisconnectedListeners: make(map[string]*list.List),
}
}
// Serve starts the manager. It will establish a connection to the relay server and start the relay cleanup loop for
// the unused relay connections. The manager will automatically reconnect to the relay server in case of disconnection.
func (m *Manager) Serve() error {
if m.relayClient != nil {
return fmt.Errorf("manager already serving")
}
log.Debugf("starting relay client manager with %v relay servers", m.serverURLs)
totalServers := len(m.serverURLs)
successChan := make(chan *Client, 1)
errChan := make(chan error, len(m.serverURLs))
ctx, cancel := context.WithTimeout(m.ctx, connectionTimeout)
defer cancel()
sem := make(chan struct{}, maxConcurrentServers)
for _, url := range m.serverURLs {
sem <- struct{}{}
go func(url string) {
defer func() { <-sem }()
m.connect(m.ctx, url, successChan, errChan)
}(url)
}
var errCount int
for {
select {
case client := <-successChan:
log.Infof("Successfully connected to relay server: %s", client.connectionURL)
m.relayClient = client
m.reconnectGuard = NewGuard(m.ctx, m.relayClient)
m.relayClient.SetOnDisconnectListener(func() {
m.onServerDisconnected(client.connectionURL)
})
m.startCleanupLoop()
return nil
case err := <-errChan:
errCount++
log.Warnf("Connection attempt failed: %v", err)
if errCount == totalServers {
return errors.New("failed to connect to any relay server: all attempts failed")
}
case <-ctx.Done():
return fmt.Errorf("failed to connect to any relay server: %w", ctx.Err())
}
}
}
func (m *Manager) connect(ctx context.Context, serverURL string, successChan chan<- *Client, errChan chan<- error) {
// TODO: abort the connection if another connection was successful
relayClient := NewClient(ctx, serverURL, m.tokenStore, m.peerID)
if err := relayClient.Connect(); err != nil {
errChan <- fmt.Errorf("failed to connect to %s: %w", serverURL, err)
return
}
select {
case successChan <- relayClient:
// This client was the first to connect successfully
default:
if err := relayClient.Close(); err != nil {
log.Debugf("failed to close relay client: %s", err)
}
}
}
// OpenConn opens a connection to the given peer key. If the peer is on the same relay server, the connection will be
// established via the relay server. If the peer is on a different relay server, the manager will establish a new
// connection to the relay server. It returns back with a net.Conn what represent the remote peer connection.
func (m *Manager) OpenConn(serverAddress, peerKey string) (net.Conn, error) {
if m.relayClient == nil {
return nil, ErrRelayClientNotConnected
}
foreign, err := m.isForeignServer(serverAddress)
if err != nil {
return nil, err
}
var (
netConn net.Conn
)
if !foreign {
log.Debugf("open peer connection via permanent server: %s", peerKey)
netConn, err = m.relayClient.OpenConn(peerKey)
} else {
log.Debugf("open peer connection via foreign server: %s", serverAddress)
netConn, err = m.openConnVia(serverAddress, peerKey)
}
if err != nil {
return nil, err
}
return netConn, err
}
// AddCloseListener adds a listener to the given server instance address. The listener will be called if the connection
// closed.
func (m *Manager) AddCloseListener(serverAddress string, onClosedListener OnServerCloseListener) error {
foreign, err := m.isForeignServer(serverAddress)
if err != nil {
return err
}
var listenerAddr string
if foreign {
listenerAddr = serverAddress
} else {
listenerAddr = m.relayClient.connectionURL
}
m.addListener(listenerAddr, onClosedListener)
return nil
}
// RelayInstanceAddress returns the address of the permanent relay server. It could change if the network connection is
// lost. This address will be sent to the target peer to choose the common relay server for the communication.
func (m *Manager) RelayInstanceAddress() (string, error) {
if m.relayClient == nil {
return "", ErrRelayClientNotConnected
}
return m.relayClient.ServerInstanceURL()
}
// ServerURLs returns the addresses of the relay servers.
func (m *Manager) ServerURLs() []string {
return m.serverURLs
}
// HasRelayAddress returns true if the manager is serving. With this method can check if the peer can communicate with
// Relay service.
func (m *Manager) HasRelayAddress() bool {
return len(m.serverURLs) > 0
}
// UpdateToken updates the token in the token store.
func (m *Manager) UpdateToken(token *relayAuth.Token) error {
return m.tokenStore.UpdateToken(token)
}
func (m *Manager) openConnVia(serverAddress, peerKey string) (net.Conn, error) {
// check if already has a connection to the desired relay server
m.relayClientsMutex.RLock()
rt, ok := m.relayClients[serverAddress]
if ok {
rt.RLock()
m.relayClientsMutex.RUnlock()
defer rt.RUnlock()
return rt.relayClient.OpenConn(peerKey)
}
m.relayClientsMutex.RUnlock()
// if not, establish a new connection but check it again (because changed the lock type) before starting the
// connection
m.relayClientsMutex.Lock()
rt, ok = m.relayClients[serverAddress]
if ok {
rt.RLock()
m.relayClientsMutex.Unlock()
defer rt.RUnlock()
return rt.relayClient.OpenConn(peerKey)
}
// create a new relay client and store it in the relayClients map
rt = NewRelayTrack()
rt.Lock()
m.relayClients[serverAddress] = rt
m.relayClientsMutex.Unlock()
relayClient := NewClient(m.ctx, serverAddress, m.tokenStore, m.peerID)
err := relayClient.Connect()
if err != nil {
rt.Unlock()
m.relayClientsMutex.Lock()
delete(m.relayClients, serverAddress)
m.relayClientsMutex.Unlock()
return nil, err
}
// if connection closed then delete the relay client from the list
relayClient.SetOnDisconnectListener(func() {
m.onServerDisconnected(serverAddress)
})
rt.relayClient = relayClient
rt.Unlock()
conn, err := relayClient.OpenConn(peerKey)
if err != nil {
return nil, err
}
return conn, nil
}
func (m *Manager) onServerDisconnected(serverAddress string) {
if serverAddress == m.relayClient.connectionURL {
go m.reconnectGuard.OnDisconnected()
}
m.notifyOnDisconnectListeners(serverAddress)
}
func (m *Manager) isForeignServer(address string) (bool, error) {
rAddr, err := m.relayClient.ServerInstanceURL()
if err != nil {
return false, fmt.Errorf("relay client not connected")
}
return rAddr != address, nil
}
func (m *Manager) startCleanupLoop() {
if m.ctx.Err() != nil {
return
}
ticker := time.NewTicker(relayCleanupInterval)
go func() {
defer ticker.Stop()
for {
select {
case <-m.ctx.Done():
return
case <-ticker.C:
m.cleanUpUnusedRelays()
}
}
}()
}
func (m *Manager) cleanUpUnusedRelays() {
m.relayClientsMutex.Lock()
defer m.relayClientsMutex.Unlock()
for addr, rt := range m.relayClients {
rt.Lock()
if rt.relayClient.HasConns() {
rt.Unlock()
continue
}
rt.relayClient.SetOnDisconnectListener(nil)
go func() {
_ = rt.relayClient.Close()
}()
log.Debugf("clean up unused relay server connection: %s", addr)
delete(m.relayClients, addr)
rt.Unlock()
}
}
func (m *Manager) addListener(serverAddress string, onClosedListener OnServerCloseListener) {
m.listenerLock.Lock()
defer m.listenerLock.Unlock()
l, ok := m.onDisconnectedListeners[serverAddress]
if !ok {
l = list.New()
}
for e := l.Front(); e != nil; e = e.Next() {
if reflect.ValueOf(e.Value).Pointer() == reflect.ValueOf(onClosedListener).Pointer() {
return
}
}
l.PushBack(onClosedListener)
m.onDisconnectedListeners[serverAddress] = l
}
func (m *Manager) notifyOnDisconnectListeners(serverAddress string) {
m.listenerLock.Lock()
defer m.listenerLock.Unlock()
l, ok := m.onDisconnectedListeners[serverAddress]
if !ok {
return
}
for e := l.Front(); e != nil; e = e.Next() {
go e.Value.(OnServerCloseListener)()
}
delete(m.onDisconnectedListeners, serverAddress)
}

432
relay/client/manager_test.go Normal file
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package client
import (
"context"
"testing"
"time"
log "github.com/sirupsen/logrus"
"go.opentelemetry.io/otel"
"github.com/netbirdio/netbird/relay/server"
)
func TestEmptyURL(t *testing.T) {
mgr := NewManager(context.Background(), nil, "alice")
err := mgr.Serve()
if err == nil {
t.Errorf("expected error, got nil")
}
}
func TestForeignConn(t *testing.T) {
ctx := context.Background()
srvCfg1 := server.ListenerConfig{
Address: "localhost:1234",
}
srv1, err := server.NewServer(otel.Meter(""), srvCfg1.Address, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv1.Listen(srvCfg1)
if err != nil {
errChan <- err
}
}()
defer func() {
err := srv1.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
srvCfg2 := server.ListenerConfig{
Address: "localhost:2234",
}
srv2, err := server.NewServer(otel.Meter(""), srvCfg2.Address, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan2 := make(chan error, 1)
go func() {
err := srv2.Listen(srvCfg2)
if err != nil {
errChan2 <- err
}
}()
defer func() {
err := srv2.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
if err := waitForServerToStart(errChan2); err != nil {
t.Fatalf("failed to start server: %s", err)
}
idAlice := "alice"
log.Debugf("connect by alice")
mCtx, cancel := context.WithCancel(ctx)
defer cancel()
clientAlice := NewManager(mCtx, toURL(srvCfg1), idAlice)
err = clientAlice.Serve()
if err != nil {
t.Fatalf("failed to serve manager: %s", err)
}
idBob := "bob"
log.Debugf("connect by bob")
clientBob := NewManager(mCtx, toURL(srvCfg2), idBob)
err = clientBob.Serve()
if err != nil {
t.Fatalf("failed to serve manager: %s", err)
}
bobsSrvAddr, err := clientBob.RelayInstanceAddress()
if err != nil {
t.Fatalf("failed to get relay address: %s", err)
}
connAliceToBob, err := clientAlice.OpenConn(bobsSrvAddr, idBob)
if err != nil {
t.Fatalf("failed to bind channel: %s", err)
}
connBobToAlice, err := clientBob.OpenConn(bobsSrvAddr, idAlice)
if err != nil {
t.Fatalf("failed to bind channel: %s", err)
}
payload := "hello bob, I am alice"
_, err = connAliceToBob.Write([]byte(payload))
if err != nil {
t.Fatalf("failed to write to channel: %s", err)
}
buf := make([]byte, 65535)
n, err := connBobToAlice.Read(buf)
if err != nil {
t.Fatalf("failed to read from channel: %s", err)
}
_, err = connBobToAlice.Write(buf[:n])
if err != nil {
t.Fatalf("failed to write to channel: %s", err)
}
n, err = connAliceToBob.Read(buf)
if err != nil {
t.Fatalf("failed to read from channel: %s", err)
}
if payload != string(buf[:n]) {
t.Fatalf("expected %s, got %s", payload, string(buf[:n]))
}
}
func TestForeginConnClose(t *testing.T) {
ctx := context.Background()
srvCfg1 := server.ListenerConfig{
Address: "localhost:1234",
}
srv1, err := server.NewServer(otel.Meter(""), srvCfg1.Address, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv1.Listen(srvCfg1)
if err != nil {
errChan <- err
}
}()
defer func() {
err := srv1.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
srvCfg2 := server.ListenerConfig{
Address: "localhost:2234",
}
srv2, err := server.NewServer(otel.Meter(""), srvCfg2.Address, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan2 := make(chan error, 1)
go func() {
err := srv2.Listen(srvCfg2)
if err != nil {
errChan2 <- err
}
}()
defer func() {
err := srv2.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
if err := waitForServerToStart(errChan2); err != nil {
t.Fatalf("failed to start server: %s", err)
}
idAlice := "alice"
log.Debugf("connect by alice")
mCtx, cancel := context.WithCancel(ctx)
defer cancel()
mgr := NewManager(mCtx, toURL(srvCfg1), idAlice)
err = mgr.Serve()
if err != nil {
t.Fatalf("failed to serve manager: %s", err)
}
conn, err := mgr.OpenConn(toURL(srvCfg2)[0], "anotherpeer")
if err != nil {
t.Fatalf("failed to bind channel: %s", err)
}
err = conn.Close()
if err != nil {
t.Fatalf("failed to close connection: %s", err)
}
}
func TestForeginAutoClose(t *testing.T) {
ctx := context.Background()
relayCleanupInterval = 1 * time.Second
srvCfg1 := server.ListenerConfig{
Address: "localhost:1234",
}
srv1, err := server.NewServer(otel.Meter(""), srvCfg1.Address, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
t.Log("binding server 1.")
err := srv1.Listen(srvCfg1)
if err != nil {
errChan <- err
}
}()
defer func() {
t.Logf("closing server 1.")
err := srv1.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
t.Logf("server 1. closed")
}()
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
srvCfg2 := server.ListenerConfig{
Address: "localhost:2234",
}
srv2, err := server.NewServer(otel.Meter(""), srvCfg2.Address, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan2 := make(chan error, 1)
go func() {
t.Log("binding server 2.")
err := srv2.Listen(srvCfg2)
if err != nil {
errChan2 <- err
}
}()
defer func() {
t.Logf("closing server 2.")
err := srv2.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
t.Logf("server 2 closed.")
}()
if err := waitForServerToStart(errChan2); err != nil {
t.Fatalf("failed to start server: %s", err)
}
idAlice := "alice"
t.Log("connect to server 1.")
mCtx, cancel := context.WithCancel(ctx)
defer cancel()
mgr := NewManager(mCtx, toURL(srvCfg1), idAlice)
err = mgr.Serve()
if err != nil {
t.Fatalf("failed to serve manager: %s", err)
}
t.Log("open connection to another peer")
conn, err := mgr.OpenConn(toURL(srvCfg2)[0], "anotherpeer")
if err != nil {
t.Fatalf("failed to bind channel: %s", err)
}
t.Log("close conn")
err = conn.Close()
if err != nil {
t.Fatalf("failed to close connection: %s", err)
}
t.Logf("waiting for relay cleanup: %s", relayCleanupInterval+1*time.Second)
time.Sleep(relayCleanupInterval + 1*time.Second)
if len(mgr.relayClients) != 0 {
t.Errorf("expected 0, got %d", len(mgr.relayClients))
}
t.Logf("closing manager")
}
func TestAutoReconnect(t *testing.T) {
ctx := context.Background()
reconnectingTimeout = 2 * time.Second
srvCfg := server.ListenerConfig{
Address: "localhost:1234",
}
srv, err := server.NewServer(otel.Meter(""), srvCfg.Address, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv.Listen(srvCfg)
if err != nil {
errChan <- err
}
}()
defer func() {
err := srv.Shutdown(ctx)
if err != nil {
log.Errorf("failed to close server: %s", err)
}
}()
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
mCtx, cancel := context.WithCancel(ctx)
defer cancel()
clientAlice := NewManager(mCtx, toURL(srvCfg), "alice")
err = clientAlice.Serve()
if err != nil {
t.Fatalf("failed to serve manager: %s", err)
}
ra, err := clientAlice.RelayInstanceAddress()
if err != nil {
t.Errorf("failed to get relay address: %s", err)
}
conn, err := clientAlice.OpenConn(ra, "bob")
if err != nil {
t.Errorf("failed to bind channel: %s", err)
}
t.Log("closing client relay connection")
// todo figure out moc server
_ = clientAlice.relayClient.relayConn.Close()
t.Log("start test reading")
_, err = conn.Read(make([]byte, 1))
if err == nil {
t.Errorf("unexpected reading from closed connection")
}
log.Infof("waiting for reconnection")
time.Sleep(reconnectingTimeout + 1*time.Second)
log.Infof("reopent the connection")
_, err = clientAlice.OpenConn(ra, "bob")
if err != nil {
t.Errorf("failed to open channel: %s", err)
}
}
func TestNotifierDoubleAdd(t *testing.T) {
ctx := context.Background()
srvCfg1 := server.ListenerConfig{
Address: "localhost:1234",
}
srv1, err := server.NewServer(otel.Meter(""), srvCfg1.Address, false, av)
if err != nil {
t.Fatalf("failed to create server: %s", err)
}
errChan := make(chan error, 1)
go func() {
err := srv1.Listen(srvCfg1)
if err != nil {
errChan <- err
}
}()
defer func() {
err := srv1.Shutdown(ctx)
if err != nil {
t.Errorf("failed to close server: %s", err)
}
}()
if err := waitForServerToStart(errChan); err != nil {
t.Fatalf("failed to start server: %s", err)
}
idAlice := "alice"
log.Debugf("connect by alice")
mCtx, cancel := context.WithCancel(ctx)
defer cancel()
clientAlice := NewManager(mCtx, toURL(srvCfg1), idAlice)
err = clientAlice.Serve()
if err != nil {
t.Fatalf("failed to serve manager: %s", err)
}
conn1, err := clientAlice.OpenConn(clientAlice.ServerURLs()[0], "idBob")
if err != nil {
t.Fatalf("failed to bind channel: %s", err)
}
fnCloseListener := OnServerCloseListener(func() {
log.Infof("close listener")
})
err = clientAlice.AddCloseListener(clientAlice.ServerURLs()[0], fnCloseListener)
if err != nil {
t.Fatalf("failed to add close listener: %s", err)
}
err = clientAlice.AddCloseListener(clientAlice.ServerURLs()[0], fnCloseListener)
if err != nil {
t.Fatalf("failed to add close listener: %s", err)
}
err = conn1.Close()
if err != nil {
t.Errorf("failed to close connection: %s", err)
}
}
func toURL(address server.ListenerConfig) []string {
return []string{"rel://" + address.Address}
}

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relay/cmd/env.go Normal file
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package cmd
import (
"os"
"strings"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
// setFlagsFromEnvVars reads and updates flag values from environment variables with prefix NB_
func setFlagsFromEnvVars(cmd *cobra.Command) {
flags := cmd.PersistentFlags()
flags.VisitAll(func(f *pflag.Flag) {
newEnvVar := flagNameToEnvVar(f.Name, "NB_")
value, present := os.LookupEnv(newEnvVar)
if !present {
return
}
err := flags.Set(f.Name, value)
if err != nil {
log.Infof("unable to configure flag %s using variable %s, err: %v", f.Name, newEnvVar, err)
}
})
}
// flagNameToEnvVar converts flag name to environment var name adding a prefix,
// replacing dashes and making all uppercase (e.g. setup-keys is converted to NB_SETUP_KEYS according to the input prefix)
func flagNameToEnvVar(cmdFlag string, prefix string) string {
parsed := strings.ReplaceAll(cmdFlag, "-", "_")
upper := strings.ToUpper(parsed)
return prefix + upper
}

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relay/cmd/root.go Normal file
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package cmd
import (
"context"
"crypto/tls"
"errors"
"fmt"
"net/http"
"os"
"os/signal"
"syscall"
"time"
"github.com/hashicorp/go-multierror"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/netbirdio/netbird/encryption"
auth "github.com/netbirdio/netbird/relay/auth/hmac"
"github.com/netbirdio/netbird/relay/server"
"github.com/netbirdio/netbird/signal/metrics"
"github.com/netbirdio/netbird/util"
)
const (
metricsPort = 9090
)
type Config struct {
ListenAddress string
// in HA every peer connect to a common domain, the instance domain has been distributed during the p2p connection
// it is a domain:port or ip:port
ExposedAddress string
LetsencryptEmail string
LetsencryptDataDir string
LetsencryptDomains []string
// in case of using Route 53 for DNS challenge the credentials should be provided in the environment variables or
// in the AWS credentials file
LetsencryptAWSRoute53 bool
TlsCertFile string
TlsKeyFile string
AuthSecret string
LogLevel string
LogFile string
}
func (c Config) Validate() error {
if c.ExposedAddress == "" {
return fmt.Errorf("exposed address is required")
}
if c.AuthSecret == "" {
return fmt.Errorf("auth secret is required")
}
return nil
}
func (c Config) HasCertConfig() bool {
return c.TlsCertFile != "" && c.TlsKeyFile != ""
}
func (c Config) HasLetsEncrypt() bool {
return c.LetsencryptDataDir != "" && c.LetsencryptDomains != nil && len(c.LetsencryptDomains) > 0
}
var (
cobraConfig *Config
rootCmd = &cobra.Command{
Use: "relay",
Short: "Relay service",
Long: "Relay service for Netbird agents",
SilenceUsage: true,
SilenceErrors: true,
RunE: execute,
}
)
func init() {
_ = util.InitLog("trace", "console")
cobraConfig = &Config{}
rootCmd.PersistentFlags().StringVarP(&cobraConfig.ListenAddress, "listen-address", "l", ":443", "listen address")
rootCmd.PersistentFlags().StringVarP(&cobraConfig.ExposedAddress, "exposed-address", "e", "", "instance domain address (or ip) and port, it will be distributes between peers")
rootCmd.PersistentFlags().StringVarP(&cobraConfig.LetsencryptDataDir, "letsencrypt-data-dir", "d", "", "a directory to store Let's Encrypt data. Required if Let's Encrypt is enabled.")
rootCmd.PersistentFlags().StringSliceVarP(&cobraConfig.LetsencryptDomains, "letsencrypt-domains", "a", nil, "list of domains to issue Let's Encrypt certificate for. Enables TLS using Let's Encrypt. Will fetch and renew certificate, and run the server with TLS")
rootCmd.PersistentFlags().StringVar(&cobraConfig.LetsencryptEmail, "letsencrypt-email", "", "email address to use for Let's Encrypt certificate registration")
rootCmd.PersistentFlags().BoolVar(&cobraConfig.LetsencryptAWSRoute53, "letsencrypt-aws-route53", false, "use AWS Route 53 for Let's Encrypt DNS challenge")
rootCmd.PersistentFlags().StringVarP(&cobraConfig.TlsCertFile, "tls-cert-file", "c", "", "")
rootCmd.PersistentFlags().StringVarP(&cobraConfig.TlsKeyFile, "tls-key-file", "k", "", "")
rootCmd.PersistentFlags().StringVarP(&cobraConfig.AuthSecret, "auth-secret", "s", "", "auth secret")
rootCmd.PersistentFlags().StringVar(&cobraConfig.LogLevel, "log-level", "info", "log level")
rootCmd.PersistentFlags().StringVar(&cobraConfig.LogFile, "log-file", "console", "log file")
setFlagsFromEnvVars(rootCmd)
}
func Execute() error {
return rootCmd.Execute()
}
func waitForExitSignal() {
osSigs := make(chan os.Signal, 1)
signal.Notify(osSigs, syscall.SIGINT, syscall.SIGTERM)
<-osSigs
}
func execute(cmd *cobra.Command, args []string) error {
err := cobraConfig.Validate()
if err != nil {
log.Debugf("invalid config: %s", err)
return fmt.Errorf("invalid config: %s", err)
}
err = util.InitLog(cobraConfig.LogLevel, cobraConfig.LogFile)
if err != nil {
log.Debugf("failed to initialize log: %s", err)
return fmt.Errorf("failed to initialize log: %s", err)
}
metricsServer, err := metrics.NewServer(metricsPort, "")
if err != nil {
log.Debugf("setup metrics: %v", err)
return fmt.Errorf("setup metrics: %v", err)
}
go func() {
log.Infof("running metrics server: %s%s", metricsServer.Addr, metricsServer.Endpoint)
if err := metricsServer.ListenAndServe(); !errors.Is(err, http.ErrServerClosed) {
log.Fatalf("Failed to start metrics server: %v", err)
}
}()
srvListenerCfg := server.ListenerConfig{
Address: cobraConfig.ListenAddress,
}
tlsConfig, tlsSupport, err := handleTLSConfig(cobraConfig)
if err != nil {
log.Debugf("failed to setup TLS config: %s", err)
return fmt.Errorf("failed to setup TLS config: %s", err)
}
srvListenerCfg.TLSConfig = tlsConfig
authenticator := auth.NewTimedHMACValidator(cobraConfig.AuthSecret, 24*time.Hour)
srv, err := server.NewServer(metricsServer.Meter, cobraConfig.ExposedAddress, tlsSupport, authenticator)
if err != nil {
log.Debugf("failed to create relay server: %v", err)
return fmt.Errorf("failed to create relay server: %v", err)
}
log.Infof("server will be available on: %s", srv.InstanceURL())
go func() {
if err := srv.Listen(srvListenerCfg); err != nil {
log.Fatalf("failed to bind server: %s", err)
}
}()
// it will block until exit signal
waitForExitSignal()
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
var shutDownErrors error
if err := srv.Shutdown(ctx); err != nil {
shutDownErrors = multierror.Append(shutDownErrors, fmt.Errorf("failed to close server: %s", err))
}
log.Infof("shutting down metrics server")
if err := metricsServer.Shutdown(ctx); err != nil {
shutDownErrors = multierror.Append(shutDownErrors, fmt.Errorf("failed to close metrics server: %v", err))
}
return shutDownErrors
}
func handleTLSConfig(cfg *Config) (*tls.Config, bool, error) {
if cfg.LetsencryptAWSRoute53 {
log.Debugf("using Let's Encrypt DNS resolver with Route 53 support")
r53 := encryption.Route53TLS{
DataDir: cfg.LetsencryptDataDir,
Email: cfg.LetsencryptEmail,
Domains: cfg.LetsencryptDomains,
}
tlsCfg, err := r53.GetCertificate()
if err != nil {
return nil, false, fmt.Errorf("%s", err)
}
return tlsCfg, true, nil
}
if cfg.HasLetsEncrypt() {
log.Infof("setting up TLS with Let's Encrypt.")
tlsCfg, err := setupTLSCertManager(cfg.LetsencryptDataDir, cfg.LetsencryptDomains...)
if err != nil {
return nil, false, fmt.Errorf("%s", err)
}
return tlsCfg, true, nil
}
if cfg.HasCertConfig() {
log.Debugf("using file based TLS config")
tlsCfg, err := encryption.LoadTLSConfig(cfg.TlsCertFile, cfg.TlsKeyFile)
if err != nil {
return nil, false, fmt.Errorf("%s", err)
}
return tlsCfg, true, nil
}
return nil, false, nil
}
func setupTLSCertManager(letsencryptDataDir string, letsencryptDomains ...string) (*tls.Config, error) {
certManager, err := encryption.CreateCertManager(letsencryptDataDir, letsencryptDomains...)
if err != nil {
return nil, fmt.Errorf("failed creating LetsEncrypt cert manager: %v", err)
}
return certManager.TLSConfig(), nil
}

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relay/doc.go Normal file
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//Package main
/*
The `relay` package contains the implementation of the Relay server and client. The Relay server can be used to relay
messages between peers on a single network channel. In this implementation the transport layer is the WebSocket
protocol.
Between the server and client communication has been design a custom protocol and message format. These messages are
transported over the WebSocket connection. Optionally the server can use TLS to secure the communication.
The service can support multiple Relay server instances. For this purpose the peers must know the server instance URL.
This URL will be sent to the target peer to choose the common Relay server for the communication via Signal service.
*/
package main

17
relay/healthcheck/doc.go Normal file
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/*
The `healthcheck` package is responsible for managing the health checks between the client and the relay server. It
ensures that the connection between the client and the server are alive and functioning properly.
The `Sender` struct is responsible for sending health check signals to the receiver. The receiver listens for these
signals and sends a new signal back to the sender to acknowledge that the signal has been received. If the sender does
not receive an acknowledgment signal within a certain time frame, it will send a timeout signal via timeout channel
and stop working.
The `Receiver` struct is responsible for receiving the health check signals from the sender. If the receiver does not
receive a signal within a certain time frame, it will send a timeout signal via the OnTimeout channel and stop working.
In the Relay usage the signal is sent to the peer in message type Healthcheck. In case of timeout the connection is
closed and the peer is removed from the relay.
*/
package healthcheck

82
relay/healthcheck/receiver.go Normal file
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package healthcheck
import (
"context"
"time"
)
var (
heartbeatTimeout = healthCheckInterval + 3*time.Second
)
// Receiver is a healthcheck receiver
// It will listen for heartbeat and check if the heartbeat is not received in a certain time
// If the heartbeat is not received in a certain time, it will send a timeout signal and stop to work
// The heartbeat timeout is a bit longer than the sender's healthcheck interval
type Receiver struct {
OnTimeout chan struct{}
ctx context.Context
ctxCancel context.CancelFunc
heartbeat chan struct{}
alive bool
}
// NewReceiver creates a new healthcheck receiver and start the timer in the background
func NewReceiver() *Receiver {
ctx, ctxCancel := context.WithCancel(context.Background())
r := &Receiver{
OnTimeout: make(chan struct{}, 1),
ctx: ctx,
ctxCancel: ctxCancel,
heartbeat: make(chan struct{}, 1),
}
go r.waitForHealthcheck()
return r
}
// Heartbeat acknowledge the heartbeat has been received
func (r *Receiver) Heartbeat() {
select {
case r.heartbeat <- struct{}{}:
default:
}
}
// Stop check the timeout and do not send new notifications
func (r *Receiver) Stop() {
r.ctxCancel()
}
func (r *Receiver) waitForHealthcheck() {
ticker := time.NewTicker(heartbeatTimeout)
defer ticker.Stop()
defer r.ctxCancel()
defer close(r.OnTimeout)
for {
select {
case <-r.heartbeat:
r.alive = true
case <-ticker.C:
if r.alive {
r.alive = false
continue
}
r.notifyTimeout()
return
case <-r.ctx.Done():
return
}
}
}
func (r *Receiver) notifyTimeout() {
select {
case r.OnTimeout <- struct{}{}:
default:
}
}

42
relay/healthcheck/receiver_test.go Normal file
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package healthcheck
import (
"testing"
"time"
)
func TestNewReceiver(t *testing.T) {
heartbeatTimeout = 5 * time.Second
r := NewReceiver()
select {
case <-r.OnTimeout:
t.Error("unexpected timeout")
case <-time.After(1 * time.Second):
}
}
func TestNewReceiverNotReceive(t *testing.T) {
heartbeatTimeout = 1 * time.Second
r := NewReceiver()
select {
case <-r.OnTimeout:
case <-time.After(2 * time.Second):
t.Error("timeout not received")
}
}
func TestNewReceiverAck(t *testing.T) {
heartbeatTimeout = 2 * time.Second
r := NewReceiver()
r.Heartbeat()
select {
case <-r.OnTimeout:
t.Error("unexpected timeout")
case <-time.After(3 * time.Second):
}
}

68
relay/healthcheck/sender.go Normal file
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package healthcheck
import (
"context"
"time"
)
var (
healthCheckInterval = 25 * time.Second
healthCheckTimeout = 5 * time.Second
)
// Sender is a healthcheck sender
// It will send healthcheck signal to the receiver
// If the receiver does not receive the signal in a certain time, it will send a timeout signal and stop to work
// It will also stop if the context is canceled
type Sender struct {
// HealthCheck is a channel to send health check signal to the peer
HealthCheck chan struct{}
// Timeout is a channel to the health check signal is not received in a certain time
Timeout chan struct{}
ack chan struct{}
}
// NewSender creates a new healthcheck sender
func NewSender() *Sender {
hc := &Sender{
HealthCheck: make(chan struct{}, 1),
Timeout: make(chan struct{}, 1),
ack: make(chan struct{}, 1),
}
return hc
}
// OnHCResponse sends an acknowledgment signal to the sender
func (hc *Sender) OnHCResponse() {
select {
case hc.ack <- struct{}{}:
default:
}
}
func (hc *Sender) StartHealthCheck(ctx context.Context) {
ticker := time.NewTicker(healthCheckInterval)
defer ticker.Stop()
timeoutTimer := time.NewTimer(healthCheckInterval + healthCheckTimeout)
defer timeoutTimer.Stop()
defer close(hc.HealthCheck)
defer close(hc.Timeout)
for {
select {
case <-ticker.C:
hc.HealthCheck <- struct{}{}
case <-timeoutTimer.C:
hc.Timeout <- struct{}{}
return
case <-hc.ack:
timeoutTimer.Reset(healthCheckInterval + healthCheckTimeout)
case <-ctx.Done():
return
}
}
}

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relay/healthcheck/sender_test.go Normal file
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package healthcheck
import (
"context"
"os"
"testing"
"time"
)
func TestMain(m *testing.M) {
// override the health check interval to speed up the test
healthCheckInterval = 2 * time.Second
healthCheckTimeout = 100 * time.Millisecond
code := m.Run()
os.Exit(code)
}
func TestNewHealthPeriod(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
hc := NewSender()
go hc.StartHealthCheck(ctx)
iterations := 0
for i := 0; i < 3; i++ {
select {
case <-hc.HealthCheck:
iterations++
hc.OnHCResponse()
case <-hc.Timeout:
t.Fatalf("health check is timed out")
case <-time.After(healthCheckInterval + 100*time.Millisecond):
t.Fatalf("health check not received")
}
}
}
func TestNewHealthFailed(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
hc := NewSender()
go hc.StartHealthCheck(ctx)
select {
case <-hc.Timeout:
case <-time.After(healthCheckInterval + healthCheckTimeout + 100*time.Millisecond):
t.Fatalf("health check is not timed out")
}
}
func TestNewHealthcheckStop(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
hc := NewSender()
go hc.StartHealthCheck(ctx)
time.Sleep(100 * time.Millisecond)
cancel()
select {
case _, ok := <-hc.HealthCheck:
if ok {
t.Fatalf("health check on received")
}
case _, ok := <-hc.Timeout:
if ok {
t.Fatalf("health check on received")
}
case <-ctx.Done():
// expected
case <-time.After(10 * time.Second):
t.Fatalf("is not exited")
}
}
func TestTimeoutReset(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
hc := NewSender()
go hc.StartHealthCheck(ctx)
iterations := 0
for i := 0; i < 3; i++ {
select {
case <-hc.HealthCheck:
iterations++
hc.OnHCResponse()
case <-hc.Timeout:
t.Fatalf("health check is timed out")
case <-time.After(healthCheckInterval + 100*time.Millisecond):
t.Fatalf("health check not received")
}
}
select {
case <-hc.HealthCheck:
case <-hc.Timeout:
// expected
case <-ctx.Done():
t.Fatalf("context is done")
case <-time.After(10 * time.Second):
t.Fatalf("is not exited")
}
}

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relay/main.go Normal file
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package main
import (
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/relay/cmd"
)
func main() {
if err := cmd.Execute(); err != nil {
log.Fatalf("failed to execute command: %v", err)
}
}

30
relay/messages/address/address.go Normal file
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package address
import (
"bytes"
"encoding/gob"
"fmt"
)
type Address struct {
URL string
}
func (addr *Address) Marshal() ([]byte, error) {
var buf bytes.Buffer
enc := gob.NewEncoder(&buf)
if err := enc.Encode(addr); err != nil {
return nil, fmt.Errorf("encode Address: %w", err)
}
return buf.Bytes(), nil
}
func Unmarshal(data []byte) (*Address, error) {
var addr Address
buf := bytes.NewBuffer(data)
dec := gob.NewDecoder(buf)
if err := dec.Decode(&addr); err != nil {
return nil, fmt.Errorf("decode Address: %w", err)
}
return &addr, nil
}

51
relay/messages/auth/auth.go Normal file
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package auth
import (
"bytes"
"encoding/gob"
"fmt"
)
type Algorithm int
const (
AlgoUnknown Algorithm = iota
AlgoHMACSHA256
AlgoHMACSHA512
)
func (a Algorithm) String() string {
switch a {
case AlgoHMACSHA256:
return "HMAC-SHA256"
case AlgoHMACSHA512:
return "HMAC-SHA512"
default:
return "Unknown"
}
}
type Msg struct {
AuthAlgorithm Algorithm
AdditionalData []byte
}
func (msg *Msg) Marshal() ([]byte, error) {
var buf bytes.Buffer
enc := gob.NewEncoder(&buf)
if err := enc.Encode(msg); err != nil {
return nil, fmt.Errorf("encode Msg: %w", err)
}
return buf.Bytes(), nil
}
func UnmarshalMsg(data []byte) (*Msg, error) {
var msg *Msg
buf := bytes.NewBuffer(data)
dec := gob.NewDecoder(buf)
if err := dec.Decode(&msg); err != nil {
return nil, fmt.Errorf("decode Msg: %w", err)
}
return msg, nil
}

5
relay/messages/doc.go Normal file
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/*
Package messages provides the message types that are used to communicate between the relay and the client.
This package is used to determine the type of message that is being sent and received between the relay and the client.
*/
package messages

31
relay/messages/id.go Normal file
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package messages
import (
"crypto/sha256"
"encoding/base64"
"fmt"
)
const (
prefixLength = 4
IDSize = prefixLength + sha256.Size
)
var (
prefix = []byte("sha-") // 4 bytes
)
// HashID generates a sha256 hash from the peerID and returns the hash and the human-readable string
func HashID(peerID string) ([]byte, string) {
idHash := sha256.Sum256([]byte(peerID))
idHashString := string(prefix) + base64.StdEncoding.EncodeToString(idHash[:])
var prefixedHash []byte
prefixedHash = append(prefixedHash, prefix...)
prefixedHash = append(prefixedHash, idHash[:]...)
return prefixedHash, idHashString
}
// HashIDToString converts a hash to a human-readable string
func HashIDToString(idHash []byte) string {
return fmt.Sprintf("%s%s", idHash[:prefixLength], base64.StdEncoding.EncodeToString(idHash[prefixLength:]))
}

13
relay/messages/id_test.go Normal file
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package messages
import (
"testing"
)
func TestHashID(t *testing.T) {
hashedID, hashedStringId := HashID("alice")
enc := HashIDToString(hashedID)
if enc != hashedStringId {
t.Errorf("expected %s, got %s", hashedStringId, enc)
}
}

239
relay/messages/message.go Normal file
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package messages
import (
"bytes"
"errors"
"fmt"
)
const (
MsgTypeUnknown MsgType = 0
MsgTypeHello MsgType = 1
MsgTypeHelloResponse MsgType = 2
MsgTypeTransport MsgType = 3
MsgTypeClose MsgType = 4
MsgTypeHealthCheck MsgType = 5
SizeOfVersionByte = 1
SizeOfMsgType = 1
SizeOfProtoHeader = SizeOfVersionByte + SizeOfMsgType
sizeOfMagicByte = 4
headerSizeTransport = IDSize
headerSizeHello = sizeOfMagicByte + IDSize
headerSizeHelloResp = 0
MaxHandshakeSize = 8192
CurrentProtocolVersion = 1
)
var (
ErrInvalidMessageLength = errors.New("invalid message length")
ErrUnsupportedVersion = errors.New("unsupported version")
magicHeader = []byte{0x21, 0x12, 0xA4, 0x42}
healthCheckMsg = []byte{byte(CurrentProtocolVersion), byte(MsgTypeHealthCheck)}
)
type MsgType byte
func (m MsgType) String() string {
switch m {
case MsgTypeHello:
return "hello"
case MsgTypeHelloResponse:
return "hello response"
case MsgTypeTransport:
return "transport"
case MsgTypeClose:
return "close"
case MsgTypeHealthCheck:
return "health check"
default:
return "unknown"
}
}
type HelloResponse struct {
InstanceAddress string
}
// ValidateVersion checks if the given version is supported by the protocol
func ValidateVersion(msg []byte) (int, error) {
if len(msg) < SizeOfVersionByte {
return 0, ErrInvalidMessageLength
}
version := int(msg[0])
if version != CurrentProtocolVersion {
return 0, fmt.Errorf("%d: %w", version, ErrUnsupportedVersion)
}
return version, nil
}
// DetermineClientMessageType determines the message type from the first the message
func DetermineClientMessageType(msg []byte) (MsgType, error) {
if len(msg) < SizeOfMsgType {
return 0, ErrInvalidMessageLength
}
msgType := MsgType(msg[0])
switch msgType {
case
MsgTypeHello,
MsgTypeTransport,
MsgTypeClose,
MsgTypeHealthCheck:
return msgType, nil
default:
return MsgTypeUnknown, fmt.Errorf("invalid msg type %d", msgType)
}
}
// DetermineServerMessageType determines the message type from the first the message
func DetermineServerMessageType(msg []byte) (MsgType, error) {
if len(msg) < SizeOfMsgType {
return 0, ErrInvalidMessageLength
}
msgType := MsgType(msg[0])
switch msgType {
case
MsgTypeHelloResponse,
MsgTypeTransport,
MsgTypeClose,
MsgTypeHealthCheck:
return msgType, nil
default:
return MsgTypeUnknown, fmt.Errorf("invalid msg type %d", msgType)
}
}
// MarshalHelloMsg initial hello message
// The Hello message is the first message sent by a client after establishing a connection with the Relay server. This
// message is used to authenticate the client with the server. The authentication is done using an HMAC method.
// The protocol does not limit to use HMAC, it can be any other method. If the authentication failed the server will
// close the network connection without any response.
func MarshalHelloMsg(peerID []byte, additions []byte) ([]byte, error) {
if len(peerID) != IDSize {
return nil, fmt.Errorf("invalid peerID length: %d", len(peerID))
}
msg := make([]byte, SizeOfProtoHeader+sizeOfMagicByte, SizeOfProtoHeader+headerSizeHello+len(additions))
msg[0] = byte(CurrentProtocolVersion)
msg[1] = byte(MsgTypeHello)
copy(msg[SizeOfProtoHeader:SizeOfProtoHeader+sizeOfMagicByte], magicHeader)
msg = append(msg, peerID...)
msg = append(msg, additions...)
return msg, nil
}
// UnmarshalHelloMsg extracts peerID and the additional data from the hello message. The Additional data is used to
// authenticate the client with the server.
func UnmarshalHelloMsg(msg []byte) ([]byte, []byte, error) {
if len(msg) < headerSizeHello {
return nil, nil, ErrInvalidMessageLength
}
if !bytes.Equal(msg[:sizeOfMagicByte], magicHeader) {
return nil, nil, errors.New("invalid magic header")
}
return msg[sizeOfMagicByte:headerSizeHello], msg[headerSizeHello:], nil
}
// MarshalHelloResponse creates a response message to the hello message.
// In case of success connection the server response with a Hello Response message. This message contains the server's
// instance URL. This URL will be used by choose the common Relay server in case if the peers are in different Relay
// servers.
func MarshalHelloResponse(additionalData []byte) ([]byte, error) {
msg := make([]byte, SizeOfProtoHeader, SizeOfProtoHeader+headerSizeHelloResp+len(additionalData))
msg[0] = byte(CurrentProtocolVersion)
msg[1] = byte(MsgTypeHelloResponse)
msg = append(msg, additionalData...)
return msg, nil
}
// UnmarshalHelloResponse extracts the additional data from the hello response message.
func UnmarshalHelloResponse(msg []byte) ([]byte, error) {
if len(msg) < headerSizeHelloResp {
return nil, ErrInvalidMessageLength
}
return msg, nil
}
// MarshalCloseMsg creates a close message.
// The close message is used to close the connection gracefully between the client and the server. The server and the
// client can send this message. After receiving this message, the server or client will close the connection.
func MarshalCloseMsg() []byte {
msg := make([]byte, SizeOfProtoHeader)
msg[0] = byte(CurrentProtocolVersion)
msg[1] = byte(MsgTypeClose)
return msg
}
// MarshalTransportMsg creates a transport message.
// The transport message is used to exchange data between peers. The message contains the data to be exchanged and the
// destination peer hashed ID.
func MarshalTransportMsg(peerID []byte, payload []byte) ([]byte, error) {
if len(peerID) != IDSize {
return nil, fmt.Errorf("invalid peerID length: %d", len(peerID))
}
msg := make([]byte, SizeOfProtoHeader+headerSizeTransport, SizeOfProtoHeader+headerSizeTransport+len(payload))
msg[0] = byte(CurrentProtocolVersion)
msg[1] = byte(MsgTypeTransport)
copy(msg[SizeOfProtoHeader:], peerID)
msg = append(msg, payload...)
return msg, nil
}
// UnmarshalTransportMsg extracts the peerID and the payload from the transport message.
func UnmarshalTransportMsg(buf []byte) ([]byte, []byte, error) {
if len(buf) < headerSizeTransport {
return nil, nil, ErrInvalidMessageLength
}
return buf[:headerSizeTransport], buf[headerSizeTransport:], nil
}
// UnmarshalTransportID extracts the peerID from the transport message.
func UnmarshalTransportID(buf []byte) ([]byte, error) {
if len(buf) < headerSizeTransport {
return nil, ErrInvalidMessageLength
}
return buf[:headerSizeTransport], nil
}
// UpdateTransportMsg updates the peerID in the transport message.
// With this function the server can reuse the given byte slice to update the peerID in the transport message. So do
// need to allocate a new byte slice.
func UpdateTransportMsg(msg []byte, peerID []byte) error {
if len(msg) < len(peerID) {
return ErrInvalidMessageLength
}
copy(msg, peerID)
return nil
}
// MarshalHealthcheck creates a health check message.
// Health check message is sent by the server periodically. The client will respond with a health check response
// message. If the client does not respond to the health check message, the server will close the connection.
func MarshalHealthcheck() []byte {
return healthCheckMsg
}

43
relay/messages/message_test.go Normal file
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@ -0,0 +1,43 @@
package messages
import (
"testing"
)
func TestMarshalHelloMsg(t *testing.T) {
peerID := []byte("abdFAaBcawquEiCMzAabYosuUaGLtSNhKxz+")
bHello, err := MarshalHelloMsg(peerID, nil)
if err != nil {
t.Fatalf("error: %v", err)
}
receivedPeerID, _, err := UnmarshalHelloMsg(bHello[SizeOfProtoHeader:])
if err != nil {
t.Fatalf("error: %v", err)
}
if string(receivedPeerID) != string(peerID) {
t.Errorf("expected %s, got %s", peerID, receivedPeerID)
}
}
func TestMarshalTransportMsg(t *testing.T) {
peerID := []byte("abdFAaBcawquEiCMzAabYosuUaGLtSNhKxz+")
payload := []byte("payload")
msg, err := MarshalTransportMsg(peerID, payload)
if err != nil {
t.Fatalf("error: %v", err)
}
id, respPayload, err := UnmarshalTransportMsg(msg[SizeOfProtoHeader:])
if err != nil {
t.Fatalf("error: %v", err)
}
if string(id) != string(peerID) {
t.Errorf("expected %s, got %s", peerID, id)
}
if string(respPayload) != string(payload) {
t.Errorf("expected %s, got %s", payload, respPayload)
}
}

136
relay/metrics/realy.go Normal file
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@ -0,0 +1,136 @@
package metrics
import (
"context"
"sync"
"time"
log "github.com/sirupsen/logrus"
"go.opentelemetry.io/otel/metric"
)
const (
idleTimeout = 30 * time.Second
)
type Metrics struct {
metric.Meter
TransferBytesSent metric.Int64Counter
TransferBytesRecv metric.Int64Counter
peers metric.Int64UpDownCounter
peerActivityChan chan string
peerLastActive map[string]time.Time
mutexActivity sync.Mutex
ctx context.Context
}
func NewMetrics(ctx context.Context, meter metric.Meter) (*Metrics, error) {
bytesSent, err := meter.Int64Counter("relay_transfer_sent_bytes_total")
if err != nil {
return nil, err
}
bytesRecv, err := meter.Int64Counter("relay_transfer_received_bytes_total")
if err != nil {
return nil, err
}
peers, err := meter.Int64UpDownCounter("relay_peers")
if err != nil {
return nil, err
}
peersActive, err := meter.Int64ObservableGauge("relay_peers_active")
if err != nil {
return nil, err
}
peersIdle, err := meter.Int64ObservableGauge("relay_peers_idle")
if err != nil {
return nil, err
}
m := &Metrics{
Meter: meter,
TransferBytesSent: bytesSent,
TransferBytesRecv: bytesRecv,
peers: peers,
ctx: ctx,
peerActivityChan: make(chan string, 10),
peerLastActive: make(map[string]time.Time),
}
_, err = meter.RegisterCallback(
func(ctx context.Context, o metric.Observer) error {
active, idle := m.calculateActiveIdleConnections()
o.ObserveInt64(peersActive, active)
o.ObserveInt64(peersIdle, idle)
return nil
},
peersActive, peersIdle,
)
if err != nil {
return nil, err
}
go m.readPeerActivity()
return m, nil
}
// PeerConnected increments the number of connected peers and increments number of idle connections
func (m *Metrics) PeerConnected(id string) {
m.peers.Add(m.ctx, 1)
m.mutexActivity.Lock()
defer m.mutexActivity.Unlock()
m.peerLastActive[id] = time.Time{}
}
// PeerDisconnected decrements the number of connected peers and decrements number of idle or active connections
func (m *Metrics) PeerDisconnected(id string) {
m.peers.Add(m.ctx, -1)
m.mutexActivity.Lock()
defer m.mutexActivity.Unlock()
delete(m.peerLastActive, id)
}
// PeerActivity increases the active connections
func (m *Metrics) PeerActivity(peerID string) {
select {
case m.peerActivityChan <- peerID:
default:
log.Errorf("peer activity channel is full, dropping activity metrics for peer %s", peerID)
}
}
func (m *Metrics) calculateActiveIdleConnections() (int64, int64) {
active, idle := int64(0), int64(0)
m.mutexActivity.Lock()
defer m.mutexActivity.Unlock()
for _, lastActive := range m.peerLastActive {
if time.Since(lastActive) > idleTimeout {
idle++
} else {
active++
}
}
return active, idle
}
func (m *Metrics) readPeerActivity() {
for {
select {
case peerID := <-m.peerActivityChan:
m.mutexActivity.Lock()
m.peerLastActive[peerID] = time.Now()
m.mutexActivity.Unlock()
case <-m.ctx.Done():
return
}
}
}

11
relay/server/listener/listener.go Normal file
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@ -0,0 +1,11 @@
package listener
import (
"context"
"net"
)
type Listener interface {
Listen(func(conn net.Conn)) error
Shutdown(ctx context.Context) error
}

114
relay/server/listener/ws/conn.go Normal file
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@ -0,0 +1,114 @@
package ws
import (
"context"
"errors"
"fmt"
"io"
"net"
"sync"
"time"
log "github.com/sirupsen/logrus"
"nhooyr.io/websocket"
)
const (
writeTimeout = 10 * time.Second
)
type Conn struct {
*websocket.Conn
lAddr *net.TCPAddr
rAddr *net.TCPAddr
closed bool
closedMu sync.Mutex
ctx context.Context
}
func NewConn(wsConn *websocket.Conn, lAddr, rAddr *net.TCPAddr) *Conn {
return &Conn{
Conn: wsConn,
lAddr: lAddr,
rAddr: rAddr,
ctx: context.Background(),
}
}
func (c *Conn) Read(b []byte) (n int, err error) {
t, r, err := c.Reader(c.ctx)
if err != nil {
return 0, c.ioErrHandling(err)
}
if t != websocket.MessageBinary {
log.Errorf("unexpected message type: %d", t)
return 0, fmt.Errorf("unexpected message type")
}
n, err = r.Read(b)
if err != nil {
return 0, c.ioErrHandling(err)
}
return n, err
}
// Write writes a binary message with the given payload.
// It does not block until fill the internal buffer.
// If the buffer filled up, wait until the buffer is drained or timeout.
func (c *Conn) Write(b []byte) (int, error) {
ctx, ctxCancel := context.WithTimeout(c.ctx, writeTimeout)
defer ctxCancel()
err := c.Conn.Write(ctx, websocket.MessageBinary, b)
return len(b), err
}
func (c *Conn) LocalAddr() net.Addr {
return c.lAddr
}
func (c *Conn) RemoteAddr() net.Addr {
return c.rAddr
}
func (c *Conn) SetReadDeadline(t time.Time) error {
return fmt.Errorf("SetReadDeadline is not implemented")
}
func (c *Conn) SetWriteDeadline(t time.Time) error {
return fmt.Errorf("SetWriteDeadline is not implemented")
}
func (c *Conn) SetDeadline(t time.Time) error {
return fmt.Errorf("SetDeadline is not implemented")
}
func (c *Conn) Close() error {
c.closedMu.Lock()
c.closed = true
c.closedMu.Unlock()
return c.Conn.CloseNow()
}
func (c *Conn) isClosed() bool {
c.closedMu.Lock()
defer c.closedMu.Unlock()
return c.closed
}
func (c *Conn) ioErrHandling(err error) error {
if c.isClosed() {
return io.EOF
}
var wErr *websocket.CloseError
if !errors.As(err, &wErr) {
return err
}
if wErr.Code == websocket.StatusNormalClosure {
return io.EOF
}
return err
}

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