nebula/handshake_manager_test.go

92 lines
2.4 KiB
Go

package nebula
import (
"net"
"testing"
"time"
"github.com/slackhq/nebula/header"
"github.com/slackhq/nebula/iputil"
"github.com/slackhq/nebula/test"
"github.com/slackhq/nebula/udp"
"github.com/stretchr/testify/assert"
)
func Test_NewHandshakeManagerVpnIp(t *testing.T) {
l := test.NewLogger()
_, tuncidr, _ := net.ParseCIDR("172.1.1.1/24")
_, vpncidr, _ := net.ParseCIDR("172.1.1.1/24")
_, localrange, _ := net.ParseCIDR("10.1.1.1/24")
ip := iputil.Ip2VpnIp(net.ParseIP("172.1.1.2"))
preferredRanges := []*net.IPNet{localrange}
mw := &mockEncWriter{}
mainHM := NewHostMap(l, "test", vpncidr, preferredRanges)
lh := newTestLighthouse()
blah := NewHandshakeManager(l, tuncidr, preferredRanges, mainHM, lh, &udp.Conn{}, defaultHandshakeConfig)
now := time.Now()
blah.NextOutboundHandshakeTimerTick(now, mw)
var initCalled bool
initFunc := func(*HostInfo) {
initCalled = true
}
i := blah.AddVpnIp(ip, initFunc)
assert.True(t, initCalled)
initCalled = false
i2 := blah.AddVpnIp(ip, initFunc)
assert.False(t, initCalled)
assert.Same(t, i, i2)
i.remotes = NewRemoteList()
i.HandshakeReady = true
// Adding something to pending should not affect the main hostmap
assert.Len(t, mainHM.Hosts, 0)
// Confirm they are in the pending index list
assert.Contains(t, blah.pendingHostMap.Hosts, ip)
// Jump ahead `HandshakeRetries` ticks, offset by one to get the sleep logic right
for i := 1; i <= DefaultHandshakeRetries+1; i++ {
now = now.Add(time.Duration(i) * DefaultHandshakeTryInterval)
blah.NextOutboundHandshakeTimerTick(now, mw)
}
// Confirm they are still in the pending index list
assert.Contains(t, blah.pendingHostMap.Hosts, ip)
// Tick 1 more time, a minute will certainly flush it out
blah.NextOutboundHandshakeTimerTick(now.Add(time.Minute), mw)
// Confirm they have been removed
assert.NotContains(t, blah.pendingHostMap.Hosts, ip)
}
func testCountTimerWheelEntries(tw *LockingTimerWheel[iputil.VpnIp]) (c int) {
for _, i := range tw.t.wheel {
n := i.Head
for n != nil {
c++
n = n.Next
}
}
return c
}
type mockEncWriter struct {
}
func (mw *mockEncWriter) SendMessageToVpnIp(t header.MessageType, st header.MessageSubType, vpnIp iputil.VpnIp, p, nb, out []byte) {
return
}
func (mw *mockEncWriter) SendVia(via *HostInfo, relay *Relay, ad, nb, out []byte, nocopy bool) {
return
}
func (mw *mockEncWriter) Handshake(vpnIP iputil.VpnIp) {}