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agent_test.go
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// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT
//go:build !js
// +build !js
package ice
import (
"context"
"net"
"strconv"
"sync"
"testing"
"time"
"github.com/pion/ice/v4/internal/fakenet"
"github.com/pion/logging"
"github.com/pion/stun/v3"
"github.com/pion/transport/v3/test"
"github.com/pion/transport/v3/vnet"
"github.com/stretchr/testify/require"
)
type BadAddr struct{}
func (ba *BadAddr) Network() string {
return "xxx"
}
func (ba *BadAddr) String() string {
return "yyy"
}
func TestHandlePeerReflexive(t *testing.T) { //nolint:cyclop
defer test.CheckRoutines(t)()
// Limit runtime in case of deadlocks
defer test.TimeOut(time.Second * 2).Stop()
t.Run("UDP prflx candidate from handleInbound()", func(t *testing.T) {
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
require.NoError(t, agent.loop.Run(agent.loop, func(_ context.Context) {
agent.selector = &controllingSelector{agent: agent, log: agent.log}
hostConfig := CandidateHostConfig{
Network: "udp",
Address: "192.168.0.2",
Port: 777,
Component: 1,
}
local, err := NewCandidateHost(&hostConfig)
local.conn = &fakenet.MockPacketConn{}
require.NoError(t, err)
remote := &net.UDPAddr{IP: net.ParseIP("172.17.0.3"), Port: 999}
msg, err := stun.Build(stun.BindingRequest, stun.TransactionID,
stun.NewUsername(agent.localUfrag+":"+agent.remoteUfrag),
UseCandidate(),
AttrControlling(agent.tieBreaker),
PriorityAttr(local.Priority()),
stun.NewShortTermIntegrity(agent.localPwd),
stun.Fingerprint,
)
require.NoError(t, err)
// nolint: contextcheck
agent.handleInbound(msg, local, remote)
// Length of remote candidate list must be one now
require.Len(t, agent.remoteCandidates, 1)
// Length of remote candidate list for a network type must be 1
set := agent.remoteCandidates[local.NetworkType()]
require.Len(t, set, 1)
c := set[0]
require.Equal(t, CandidateTypePeerReflexive, c.Type())
require.Equal(t, "172.17.0.3", c.Address())
require.Equal(t, 999, c.Port())
}))
})
t.Run("Bad network type with handleInbound()", func(t *testing.T) {
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
require.NoError(t, agent.loop.Run(agent.loop, func(_ context.Context) {
agent.selector = &controllingSelector{agent: agent, log: agent.log}
hostConfig := CandidateHostConfig{
Network: "tcp",
Address: "192.168.0.2",
Port: 777,
Component: 1,
}
local, err := NewCandidateHost(&hostConfig)
require.NoError(t, err)
remote := &BadAddr{}
// nolint: contextcheck
agent.handleInbound(nil, local, remote)
require.Len(t, agent.remoteCandidates, 0)
}))
})
t.Run("Success from unknown remote, prflx candidate MUST only be created via Binding Request", func(t *testing.T) {
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
require.NoError(t, agent.loop.Run(agent.loop, func(_ context.Context) {
agent.selector = &controllingSelector{agent: agent, log: agent.log}
tID := [stun.TransactionIDSize]byte{}
copy(tID[:], "ABC")
agent.pendingBindingRequests = []bindingRequest{
{time.Now(), tID, &net.UDPAddr{}, false},
}
hostConfig := CandidateHostConfig{
Network: "udp",
Address: "192.168.0.2",
Port: 777,
Component: 1,
}
local, err := NewCandidateHost(&hostConfig)
local.conn = &fakenet.MockPacketConn{}
require.NoError(t, err)
remote := &net.UDPAddr{IP: net.ParseIP("172.17.0.3"), Port: 999}
msg, err := stun.Build(stun.BindingSuccess, stun.NewTransactionIDSetter(tID),
stun.NewShortTermIntegrity(agent.remotePwd),
stun.Fingerprint,
)
require.NoError(t, err)
// nolint: contextcheck
agent.handleInbound(msg, local, remote)
require.Len(t, agent.remoteCandidates, 0)
}))
})
}
// Assert that Agent on startup sends message, and doesn't wait for connectivityTicker to fire
// https://github.com/pion/ice/issues/15
func TestConnectivityOnStartup(t *testing.T) {
defer test.CheckRoutines(t)()
defer test.TimeOut(time.Second * 30).Stop()
// Create a network with two interfaces
wan, err := vnet.NewRouter(&vnet.RouterConfig{
CIDR: "0.0.0.0/0",
LoggerFactory: logging.NewDefaultLoggerFactory(),
})
require.NoError(t, err)
net0, err := vnet.NewNet(&vnet.NetConfig{
StaticIPs: []string{"192.168.0.1"},
})
require.NoError(t, err)
require.NoError(t, wan.AddNet(net0))
net1, err := vnet.NewNet(&vnet.NetConfig{
StaticIPs: []string{"192.168.0.2"},
})
require.NoError(t, err)
require.NoError(t, wan.AddNet(net1))
require.NoError(t, wan.Start())
aNotifier, aConnected := onConnected()
bNotifier, bConnected := onConnected()
KeepaliveInterval := time.Hour
cfg0 := &AgentConfig{
NetworkTypes: supportedNetworkTypes(),
MulticastDNSMode: MulticastDNSModeDisabled,
Net: net0,
KeepaliveInterval: &KeepaliveInterval,
CheckInterval: &KeepaliveInterval,
}
aAgent, err := NewAgent(cfg0)
require.NoError(t, err)
defer func() {
require.NoError(t, aAgent.Close())
}()
require.NoError(t, aAgent.OnConnectionStateChange(aNotifier))
cfg1 := &AgentConfig{
NetworkTypes: supportedNetworkTypes(),
MulticastDNSMode: MulticastDNSModeDisabled,
Net: net1,
KeepaliveInterval: &KeepaliveInterval,
CheckInterval: &KeepaliveInterval,
}
bAgent, err := NewAgent(cfg1)
require.NoError(t, err)
defer func() {
require.NoError(t, bAgent.Close())
}()
require.NoError(t, bAgent.OnConnectionStateChange(bNotifier))
func(aAgent, bAgent *Agent) (*Conn, *Conn) {
// Manual signaling
aUfrag, aPwd, err := aAgent.GetLocalUserCredentials()
require.NoError(t, err)
bUfrag, bPwd, err := bAgent.GetLocalUserCredentials()
require.NoError(t, err)
gatherAndExchangeCandidates(t, aAgent, bAgent)
accepted := make(chan struct{})
accepting := make(chan struct{})
var aConn *Conn
origHdlr := aAgent.onConnectionStateChangeHdlr.Load()
if origHdlr != nil {
defer require.NoError(t, aAgent.OnConnectionStateChange(origHdlr.(func(ConnectionState)))) //nolint:forcetypeassert
}
require.NoError(t, aAgent.OnConnectionStateChange(func(s ConnectionState) {
if s == ConnectionStateChecking {
close(accepting)
}
if origHdlr != nil {
origHdlr.(func(ConnectionState))(s) //nolint:forcetypeassert
}
}))
go func() {
var acceptErr error
aConn, acceptErr = aAgent.Accept(context.TODO(), bUfrag, bPwd)
require.NoError(t, acceptErr)
close(accepted)
}()
<-accepting
bConn, err := bAgent.Dial(context.TODO(), aUfrag, aPwd)
require.NoError(t, err)
// Ensure accepted
<-accepted
return aConn, bConn
}(aAgent, bAgent)
// Ensure pair selected
// Note: this assumes ConnectionStateConnected is thrown after selecting the final pair
<-aConnected
<-bConnected
require.NoError(t, wan.Stop())
}
func TestConnectivityLite(t *testing.T) {
defer test.CheckRoutines(t)()
defer test.TimeOut(time.Second * 30).Stop()
stunServerURL := &stun.URI{
Scheme: SchemeTypeSTUN,
Host: "1.2.3.4",
Port: 3478,
Proto: stun.ProtoTypeUDP,
}
natType := &vnet.NATType{
MappingBehavior: vnet.EndpointIndependent,
FilteringBehavior: vnet.EndpointIndependent,
}
vent, err := buildVNet(natType, natType)
require.NoError(t, err, "should succeed")
defer vent.close()
aNotifier, aConnected := onConnected()
bNotifier, bConnected := onConnected()
cfg0 := &AgentConfig{
Urls: []*stun.URI{stunServerURL},
NetworkTypes: supportedNetworkTypes(),
MulticastDNSMode: MulticastDNSModeDisabled,
Net: vent.net0,
}
aAgent, err := NewAgent(cfg0)
require.NoError(t, err)
defer func() {
require.NoError(t, aAgent.Close())
}()
require.NoError(t, aAgent.OnConnectionStateChange(aNotifier))
cfg1 := &AgentConfig{
Urls: []*stun.URI{},
Lite: true,
CandidateTypes: []CandidateType{CandidateTypeHost},
NetworkTypes: supportedNetworkTypes(),
MulticastDNSMode: MulticastDNSModeDisabled,
Net: vent.net1,
}
bAgent, err := NewAgent(cfg1)
require.NoError(t, err)
defer func() {
require.NoError(t, bAgent.Close())
}()
require.NoError(t, bAgent.OnConnectionStateChange(bNotifier))
connectWithVNet(t, aAgent, bAgent)
// Ensure pair selected
// Note: this assumes ConnectionStateConnected is thrown after selecting the final pair
<-aConnected
<-bConnected
}
func TestInboundValidity(t *testing.T) { //nolint:cyclop
defer test.CheckRoutines(t)()
buildMsg := func(class stun.MessageClass, username, key string) *stun.Message {
msg, err := stun.Build(stun.NewType(stun.MethodBinding, class), stun.TransactionID,
stun.NewUsername(username),
stun.NewShortTermIntegrity(key),
stun.Fingerprint,
)
require.NoError(t, err)
return msg
}
remote := &net.UDPAddr{IP: net.ParseIP("172.17.0.3"), Port: 999}
hostConfig := CandidateHostConfig{
Network: "udp",
Address: "192.168.0.2",
Port: 777,
Component: 1,
}
local, err := NewCandidateHost(&hostConfig)
local.conn = &fakenet.MockPacketConn{}
require.NoError(t, err)
t.Run("Invalid Binding requests should be discarded", func(t *testing.T) {
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
agent.handleInbound(buildMsg(stun.ClassRequest, "invalid", agent.localPwd), local, remote)
require.Len(t, agent.remoteCandidates, 0)
agent.handleInbound(buildMsg(stun.ClassRequest, agent.localUfrag+":"+agent.remoteUfrag, "Invalid"), local, remote)
require.Len(t, agent.remoteCandidates, 0)
})
t.Run("Invalid Binding success responses should be discarded", func(t *testing.T) {
a, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, a.Close())
}()
a.handleInbound(buildMsg(stun.ClassSuccessResponse, a.localUfrag+":"+a.remoteUfrag, "Invalid"), local, remote)
require.Len(t, a.remoteCandidates, 0)
})
t.Run("Discard non-binding messages", func(t *testing.T) {
a, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, a.Close())
}()
a.handleInbound(buildMsg(stun.ClassErrorResponse, a.localUfrag+":"+a.remoteUfrag, "Invalid"), local, remote)
require.Len(t, a.remoteCandidates, 0)
})
t.Run("Valid bind request", func(t *testing.T) {
a, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, a.Close())
}()
err = a.loop.Run(a.loop, func(_ context.Context) {
a.selector = &controllingSelector{agent: a, log: a.log}
// nolint: contextcheck
a.handleInbound(buildMsg(stun.ClassRequest, a.localUfrag+":"+a.remoteUfrag, a.localPwd), local, remote)
require.Len(t, a.remoteCandidates, 1)
})
require.NoError(t, err)
})
t.Run("Valid bind without fingerprint", func(t *testing.T) {
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
require.NoError(t, agent.loop.Run(agent.loop, func(_ context.Context) {
agent.selector = &controllingSelector{agent: agent, log: agent.log}
msg, err := stun.Build(stun.BindingRequest, stun.TransactionID,
stun.NewUsername(agent.localUfrag+":"+agent.remoteUfrag),
stun.NewShortTermIntegrity(agent.localPwd),
)
require.NoError(t, err)
// nolint: contextcheck
agent.handleInbound(msg, local, remote)
require.Len(t, agent.remoteCandidates, 1)
}))
})
t.Run("Success with invalid TransactionID", func(t *testing.T) {
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
hostConfig := CandidateHostConfig{
Network: "udp",
Address: "192.168.0.2",
Port: 777,
Component: 1,
}
local, err := NewCandidateHost(&hostConfig)
local.conn = &fakenet.MockPacketConn{}
require.NoError(t, err)
remote := &net.UDPAddr{IP: net.ParseIP("172.17.0.3"), Port: 999}
tID := [stun.TransactionIDSize]byte{}
copy(tID[:], "ABC")
msg, err := stun.Build(stun.BindingSuccess, stun.NewTransactionIDSetter(tID),
stun.NewShortTermIntegrity(agent.remotePwd),
stun.Fingerprint,
)
require.NoError(t, err)
agent.handleInbound(msg, local, remote)
require.Len(t, agent.remoteCandidates, 0)
})
}
func TestInvalidAgentStarts(t *testing.T) {
defer test.CheckRoutines(t)()
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
ctx := context.Background()
ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond)
defer cancel()
_, err = agent.Dial(ctx, "", "bar")
require.ErrorIs(t, ErrRemoteUfragEmpty, err)
_, err = agent.Dial(ctx, "foo", "")
require.ErrorIs(t, ErrRemotePwdEmpty, err)
_, err = agent.Dial(ctx, "foo", "bar")
require.ErrorIs(t, ErrCanceledByCaller, err)
_, err = agent.Dial(ctx, "foo", "bar")
require.ErrorIs(t, ErrMultipleStart, err)
}
// Assert that Agent emits Connecting/Connected/Disconnected/Failed/Closed messages.
func TestConnectionStateCallback(t *testing.T) { //nolint:cyclop
defer test.CheckRoutines(t)()
defer test.TimeOut(time.Second * 5).Stop()
disconnectedDuration := time.Second
failedDuration := time.Second
KeepaliveInterval := time.Duration(0)
cfg := &AgentConfig{
Urls: []*stun.URI{},
NetworkTypes: supportedNetworkTypes(),
DisconnectedTimeout: &disconnectedDuration,
FailedTimeout: &failedDuration,
KeepaliveInterval: &KeepaliveInterval,
InterfaceFilter: problematicNetworkInterfaces,
}
isClosed := make(chan interface{})
aAgent, err := NewAgent(cfg)
require.NoError(t, err)
defer func() {
select {
case <-isClosed:
return
default:
}
require.NoError(t, aAgent.Close())
}()
bAgent, err := NewAgent(cfg)
require.NoError(t, err)
defer func() {
select {
case <-isClosed:
return
default:
}
require.NoError(t, bAgent.Close())
}()
isChecking := make(chan interface{})
isConnected := make(chan interface{})
isDisconnected := make(chan interface{})
isFailed := make(chan interface{})
err = aAgent.OnConnectionStateChange(func(c ConnectionState) {
switch c {
case ConnectionStateChecking:
close(isChecking)
case ConnectionStateConnected:
close(isConnected)
case ConnectionStateDisconnected:
close(isDisconnected)
case ConnectionStateFailed:
close(isFailed)
case ConnectionStateClosed:
close(isClosed)
default:
}
})
require.NoError(t, err)
connect(t, aAgent, bAgent)
<-isChecking
<-isConnected
<-isDisconnected
<-isFailed
require.NoError(t, aAgent.Close())
require.NoError(t, bAgent.Close())
<-isClosed
}
func TestInvalidGather(t *testing.T) {
t.Run("Gather with no OnCandidate should error", func(t *testing.T) {
a, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, a.Close())
}()
err = a.GatherCandidates()
require.ErrorIs(t, ErrNoOnCandidateHandler, err)
})
}
func TestCandidatePairsStats(t *testing.T) { //nolint:cyclop,gocyclo
defer test.CheckRoutines(t)()
// Avoid deadlocks?
defer test.TimeOut(1 * time.Second).Stop()
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
hostConfig := &CandidateHostConfig{
Network: "udp",
Address: "192.168.1.1",
Port: 19216,
Component: 1,
}
hostLocal, err := NewCandidateHost(hostConfig)
require.NoError(t, err)
relayConfig := &CandidateRelayConfig{
Network: "udp",
Address: "1.2.3.4",
Port: 2340,
Component: 1,
RelAddr: "4.3.2.1",
RelPort: 43210,
}
relayRemote, err := NewCandidateRelay(relayConfig)
require.NoError(t, err)
srflxConfig := &CandidateServerReflexiveConfig{
Network: "udp",
Address: "10.10.10.2",
Port: 19218,
Component: 1,
RelAddr: "4.3.2.1",
RelPort: 43212,
}
srflxRemote, err := NewCandidateServerReflexive(srflxConfig)
require.NoError(t, err)
prflxConfig := &CandidatePeerReflexiveConfig{
Network: "udp",
Address: "10.10.10.2",
Port: 19217,
Component: 1,
RelAddr: "4.3.2.1",
RelPort: 43211,
}
prflxRemote, err := NewCandidatePeerReflexive(prflxConfig)
require.NoError(t, err)
hostConfig = &CandidateHostConfig{
Network: "udp",
Address: "1.2.3.5",
Port: 12350,
Component: 1,
}
hostRemote, err := NewCandidateHost(hostConfig)
require.NoError(t, err)
for _, remote := range []Candidate{relayRemote, srflxRemote, prflxRemote, hostRemote} {
p := agent.findPair(hostLocal, remote)
if p == nil {
p = agent.addPair(hostLocal, remote)
}
p.UpdateRequestReceived()
p.UpdateRequestSent()
p.UpdateResponseSent()
p.UpdateRoundTripTime(time.Second)
}
p := agent.findPair(hostLocal, prflxRemote)
p.state = CandidatePairStateFailed
for i := 1; i < 10; i++ {
p.UpdateRoundTripTime(time.Duration(i+1) * time.Second)
}
stats := agent.GetCandidatePairsStats()
require.Len(t, stats, 4)
var relayPairStat, srflxPairStat, prflxPairStat, hostPairStat CandidatePairStats
for _, cps := range stats {
require.Equal(t, cps.LocalCandidateID, hostLocal.ID())
switch cps.RemoteCandidateID {
case relayRemote.ID():
relayPairStat = cps
case srflxRemote.ID():
srflxPairStat = cps
case prflxRemote.ID():
prflxPairStat = cps
case hostRemote.ID():
hostPairStat = cps
default:
t.Fatal("invalid remote candidate ID") //nolint
}
require.False(t, cps.FirstRequestTimestamp.IsZero())
require.False(t, cps.LastRequestTimestamp.IsZero())
require.False(t, cps.FirstResponseTimestamp.IsZero())
require.False(t, cps.LastResponseTimestamp.IsZero())
require.False(t, cps.FirstRequestReceivedTimestamp.IsZero())
require.False(t, cps.LastRequestReceivedTimestamp.IsZero())
require.NotZero(t, cps.RequestsReceived)
require.NotZero(t, cps.RequestsSent)
require.NotZero(t, cps.ResponsesSent)
require.NotZero(t, cps.ResponsesReceived)
}
require.Equal(t, relayPairStat.RemoteCandidateID, relayRemote.ID())
require.Equal(t, srflxPairStat.RemoteCandidateID, srflxRemote.ID())
require.Equal(t, prflxPairStat.RemoteCandidateID, prflxRemote.ID())
require.Equal(t, hostPairStat.RemoteCandidateID, hostRemote.ID())
require.Equal(t, prflxPairStat.State, CandidatePairStateFailed)
require.Equal(t, float64(10), prflxPairStat.CurrentRoundTripTime)
require.Equal(t, float64(55), prflxPairStat.TotalRoundTripTime)
require.Equal(t, uint64(10), prflxPairStat.ResponsesReceived)
}
func TestSelectedCandidatePairStats(t *testing.T) { //nolint:cyclop
defer test.CheckRoutines(t)()
// Avoid deadlocks?
defer test.TimeOut(1 * time.Second).Stop()
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
hostConfig := &CandidateHostConfig{
Network: "udp",
Address: "192.168.1.1",
Port: 19216,
Component: 1,
}
hostLocal, err := NewCandidateHost(hostConfig)
require.NoError(t, err)
srflxConfig := &CandidateServerReflexiveConfig{
Network: "udp",
Address: "10.10.10.2",
Port: 19218,
Component: 1,
RelAddr: "4.3.2.1",
RelPort: 43212,
}
srflxRemote, err := NewCandidateServerReflexive(srflxConfig)
require.NoError(t, err)
// no selected pair, should return not available
_, ok := agent.GetSelectedCandidatePairStats()
require.False(t, ok)
// add pair and populate some RTT stats
p := agent.findPair(hostLocal, srflxRemote)
if p == nil {
agent.addPair(hostLocal, srflxRemote)
p = agent.findPair(hostLocal, srflxRemote)
}
for i := 0; i < 10; i++ {
p.UpdateRoundTripTime(time.Duration(i+1) * time.Second)
}
// set the pair as selected
agent.setSelectedPair(p)
stats, ok := agent.GetSelectedCandidatePairStats()
require.True(t, ok)
require.Equal(t, stats.LocalCandidateID, hostLocal.ID())
require.Equal(t, stats.RemoteCandidateID, srflxRemote.ID())
require.Equal(t, float64(10), stats.CurrentRoundTripTime)
require.Equal(t, float64(55), stats.TotalRoundTripTime)
require.Equal(t, uint64(10), stats.ResponsesReceived)
}
func TestLocalCandidateStats(t *testing.T) { //nolint:cyclop
defer test.CheckRoutines(t)()
// Avoid deadlocks?
defer test.TimeOut(1 * time.Second).Stop()
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
hostConfig := &CandidateHostConfig{
Network: "udp",
Address: "192.168.1.1",
Port: 19216,
Component: 1,
}
hostLocal, err := NewCandidateHost(hostConfig)
require.NoError(t, err)
srflxConfig := &CandidateServerReflexiveConfig{
Network: "udp",
Address: "192.168.1.1",
Port: 19217,
Component: 1,
RelAddr: "4.3.2.1",
RelPort: 43212,
}
srflxLocal, err := NewCandidateServerReflexive(srflxConfig)
require.NoError(t, err)
agent.localCandidates[NetworkTypeUDP4] = []Candidate{hostLocal, srflxLocal}
localStats := agent.GetLocalCandidatesStats()
require.Len(t, localStats, 2)
var hostLocalStat, srflxLocalStat CandidateStats
for _, stats := range localStats {
var candidate Candidate
switch stats.ID {
case hostLocal.ID():
hostLocalStat = stats
candidate = hostLocal
case srflxLocal.ID():
srflxLocalStat = stats
candidate = srflxLocal
default:
t.Fatal("invalid local candidate ID") // nolint
}
require.Equal(t, stats.CandidateType, candidate.Type())
require.Equal(t, stats.Priority, candidate.Priority())
require.Equal(t, stats.IP, candidate.Address())
}
require.Equal(t, hostLocalStat.ID, hostLocal.ID())
require.Equal(t, srflxLocalStat.ID, srflxLocal.ID())
}
func TestRemoteCandidateStats(t *testing.T) { //nolint:cyclop
defer test.CheckRoutines(t)()
// Avoid deadlocks?
defer test.TimeOut(1 * time.Second).Stop()
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
relayConfig := &CandidateRelayConfig{
Network: "udp",
Address: "1.2.3.4",
Port: 12340,
Component: 1,
RelAddr: "4.3.2.1",
RelPort: 43210,
}
relayRemote, err := NewCandidateRelay(relayConfig)
require.NoError(t, err)
srflxConfig := &CandidateServerReflexiveConfig{
Network: "udp",
Address: "10.10.10.2",
Port: 19218,
Component: 1,
RelAddr: "4.3.2.1",
RelPort: 43212,
}
srflxRemote, err := NewCandidateServerReflexive(srflxConfig)
require.NoError(t, err)
prflxConfig := &CandidatePeerReflexiveConfig{
Network: "udp",
Address: "10.10.10.2",
Port: 19217,
Component: 1,
RelAddr: "4.3.2.1",
RelPort: 43211,
}
prflxRemote, err := NewCandidatePeerReflexive(prflxConfig)
require.NoError(t, err)
hostConfig := &CandidateHostConfig{
Network: "udp",
Address: "1.2.3.5",
Port: 12350,
Component: 1,
}
hostRemote, err := NewCandidateHost(hostConfig)
require.NoError(t, err)
agent.remoteCandidates[NetworkTypeUDP4] = []Candidate{relayRemote, srflxRemote, prflxRemote, hostRemote}
remoteStats := agent.GetRemoteCandidatesStats()
require.Len(t, remoteStats, 4)
var relayRemoteStat, srflxRemoteStat, prflxRemoteStat, hostRemoteStat CandidateStats
for _, stats := range remoteStats {
var candidate Candidate
switch stats.ID {
case relayRemote.ID():
relayRemoteStat = stats
candidate = relayRemote
case srflxRemote.ID():
srflxRemoteStat = stats
candidate = srflxRemote
case prflxRemote.ID():
prflxRemoteStat = stats
candidate = prflxRemote
case hostRemote.ID():
hostRemoteStat = stats
candidate = hostRemote
default:
t.Fatal("invalid remote candidate ID") // nolint
}
require.Equal(t, stats.CandidateType, candidate.Type())
require.Equal(t, stats.Priority, candidate.Priority())
require.Equal(t, stats.IP, candidate.Address())
}
require.Equal(t, relayRemoteStat.ID, relayRemote.ID())
require.Equal(t, srflxRemoteStat.ID, srflxRemote.ID())
require.Equal(t, prflxRemoteStat.ID, prflxRemote.ID())
require.Equal(t, hostRemoteStat.ID, hostRemote.ID())
}
func TestInitExtIPMapping(t *testing.T) {
defer test.CheckRoutines(t)()
// agent.extIPMapper should be nil by default
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
require.Nil(t, agent.extIPMapper)
require.NoError(t, agent.Close())
// a.extIPMapper should be nil when NAT1To1IPs is a non-nil empty array
agent, err = NewAgent(&AgentConfig{
NAT1To1IPs: []string{},
NAT1To1IPCandidateType: CandidateTypeHost,
})
require.NoError(t, err)
require.Nil(t, agent.extIPMapper)
require.NoError(t, agent.Close())
// NewAgent should return an error when 1:1 NAT for host candidate is enabled
// but the candidate type does not appear in the CandidateTypes.
_, err = NewAgent(&AgentConfig{
NAT1To1IPs: []string{"1.2.3.4"},
NAT1To1IPCandidateType: CandidateTypeHost,
CandidateTypes: []CandidateType{CandidateTypeRelay},
})
require.ErrorIs(t, ErrIneffectiveNAT1To1IPMappingHost, err)
// NewAgent should return an error when 1:1 NAT for srflx candidate is enabled
// but the candidate type does not appear in the CandidateTypes.
_, err = NewAgent(&AgentConfig{
NAT1To1IPs: []string{"1.2.3.4"},
NAT1To1IPCandidateType: CandidateTypeServerReflexive,
CandidateTypes: []CandidateType{CandidateTypeRelay},
})
require.ErrorIs(t, ErrIneffectiveNAT1To1IPMappingSrflx, err)
// NewAgent should return an error when 1:1 NAT for host candidate is enabled
// along with mDNS with MulticastDNSModeQueryAndGather
_, err = NewAgent(&AgentConfig{
NAT1To1IPs: []string{"1.2.3.4"},
NAT1To1IPCandidateType: CandidateTypeHost,
MulticastDNSMode: MulticastDNSModeQueryAndGather,
})
require.ErrorIs(t, ErrMulticastDNSWithNAT1To1IPMapping, err)
// NewAgent should return if newExternalIPMapper() returns an error.
_, err = NewAgent(&AgentConfig{
NAT1To1IPs: []string{"bad.2.3.4"}, // Bad IP
NAT1To1IPCandidateType: CandidateTypeHost,
})
require.ErrorIs(t, ErrInvalidNAT1To1IPMapping, err)
}
func TestBindingRequestTimeout(t *testing.T) {
defer test.CheckRoutines(t)()
const expectedRemovalCount = 2
agent, err := NewAgent(&AgentConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, agent.Close())
}()
now := time.Now()
agent.pendingBindingRequests = append(agent.pendingBindingRequests, bindingRequest{
timestamp: now, // Valid
})
agent.pendingBindingRequests = append(agent.pendingBindingRequests, bindingRequest{
timestamp: now.Add(-3900 * time.Millisecond), // Valid
})
agent.pendingBindingRequests = append(agent.pendingBindingRequests, bindingRequest{
timestamp: now.Add(-4100 * time.Millisecond), // Invalid
})
agent.pendingBindingRequests = append(agent.pendingBindingRequests, bindingRequest{
timestamp: now.Add(-75 * time.Hour), // Invalid
})
agent.invalidatePendingBindingRequests(now)
require.Equal(
t,
expectedRemovalCount,
len(agent.pendingBindingRequests),
"Binding invalidation due to timeout did not remove the correct number of binding requests",
)
}
// TestAgentCredentials checks if local username fragments and passwords (if set) meet RFC standard