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nebula/lighthouse_test.go
Caleb Jasik 02d8bcac68
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Remove lighthouse goroutine leaks in lighthouse_test.go (#1589) 
Using <https://go.dev/doc/go1.26#goroutineleak-profiles> + Claude, I was able to run nebula's unit tests and e2e tests with the leak detector enabled.

Added a TestMain that queries pprof to see if there are any reported goroutine leaks.
I'd love to get some form of this in CI whenever go 1.26 comes out, though I'd also like to prove this is properly useful past the just five detections it got here.

<details>
<summary>TestMain</summary>


```go
package nebula

import (
    "fmt"
    "os"
    "runtime/pprof"
    "strings"
    "testing"
)

// TestMain runs after all tests and checks for goroutine leaks
func TestMain(m *testing.M) {
    // Run all tests
    exitCode := m.Run()

    // Check for goroutine leaks after all tests complete
    prof := pprof.Lookup("goroutineleak")
    if prof != nil {
        var sb strings.Builder
        if err := prof.WriteTo(&sb, 2); err != nil {
            fmt.Fprintf(os.Stderr, "Failed to write goroutineleak profile: %v\n", err)
            os.Exit(1)
        }

        content := sb.String()
        leakedCount := strings.Count(content, "(leaked)")

        if leakedCount > 0 {
            fmt.Fprintf(os.Stderr, "\n=== GOROUTINE LEAK DETECTED ===\n")
            fmt.Fprintf(os.Stderr, "Found %d leaked goroutine(s) in package nebula\n\n", leakedCount)

            goros := strings.Split(content, "\n\n")
            for _, goro := range goros {
                if strings.Contains(goro, "(leaked)") {
                    fmt.Fprintln(os.Stderr, goro)
                    fmt.Fprintln(os.Stderr)
                }
            }
            os.Exit(1)
        } else {
            fmt.Println("✓ No goroutine leaks detected in package nebula")
        }
    }

    os.Exit(exitCode)
}
```

</details>

Also had to install go1.26rc2 and update the makefile to use that go binary + set ex:

```makefile
test-goroutineleak:
	GOEXPERIMENT=goroutineleakprofile go1.26rc2 test -v ./...
```
2026-01-27 23:44:43 -06:00

615 lines
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package nebula
import (
"encoding/binary"
"fmt"
"net/netip"
"testing"
"github.com/gaissmai/bart"
"github.com/slackhq/nebula/cert"
"github.com/slackhq/nebula/config"
"github.com/slackhq/nebula/header"
"github.com/slackhq/nebula/test"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.yaml.in/yaml/v3"
)
func TestOldIPv4Only(t *testing.T) {
// This test ensures our new ipv6 enabled LH protobuf IpAndPorts works with the old style to enable backwards compatibility
b := []byte{8, 129, 130, 132, 80, 16, 10}
var m V4AddrPort
err := m.Unmarshal(b)
require.NoError(t, err)
ip := netip.MustParseAddr("10.1.1.1")
bp := ip.As4()
assert.Equal(t, binary.BigEndian.Uint32(bp[:]), m.GetAddr())
}
func Test_lhStaticMapping(t *testing.T) {
l := test.NewLogger()
myVpnNet := netip.MustParsePrefix("10.128.0.1/16")
nt := new(bart.Lite)
nt.Insert(myVpnNet)
cs := &CertState{
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
lh1 := "10.128.0.2"
c := config.NewC(l)
c.Settings["lighthouse"] = map[string]any{"hosts": []any{lh1}}
c.Settings["static_host_map"] = map[string]any{lh1: []any{"1.1.1.1:4242"}}
_, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
require.NoError(t, err)
lh2 := "10.128.0.3"
c = config.NewC(l)
c.Settings["lighthouse"] = map[string]any{"hosts": []any{lh1, lh2}}
c.Settings["static_host_map"] = map[string]any{lh1: []any{"100.1.1.1:4242"}}
_, err = NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
require.EqualError(t, err, "lighthouse 10.128.0.3 does not have a static_host_map entry")
}
func TestReloadLighthouseInterval(t *testing.T) {
l := test.NewLogger()
myVpnNet := netip.MustParsePrefix("10.128.0.1/16")
nt := new(bart.Lite)
nt.Insert(myVpnNet)
cs := &CertState{
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
lh1 := "10.128.0.2"
c := config.NewC(l)
c.Settings["lighthouse"] = map[string]any{
"hosts": []any{lh1},
"interval": "1s",
}
c.Settings["static_host_map"] = map[string]any{lh1: []any{"1.1.1.1:4242"}}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
require.NoError(t, err)
lh.ifce = &mockEncWriter{}
// The first one routine is kicked off by main.go currently, lets make sure that one dies
require.NoError(t, c.ReloadConfigString("lighthouse:\n interval: 5"))
assert.Equal(t, int64(5), lh.interval.Load())
// Subsequent calls are killed off by the LightHouse.Reload function
require.NoError(t, c.ReloadConfigString("lighthouse:\n interval: 10"))
assert.Equal(t, int64(10), lh.interval.Load())
// If this completes then nothing is stealing our reload routine
require.NoError(t, c.ReloadConfigString("lighthouse:\n interval: 11"))
assert.Equal(t, int64(11), lh.interval.Load())
}
func BenchmarkLighthouseHandleRequest(b *testing.B) {
l := test.NewLogger()
myVpnNet := netip.MustParsePrefix("10.128.0.1/0")
nt := new(bart.Lite)
nt.Insert(myVpnNet)
cs := &CertState{
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
c := config.NewC(l)
lh, err := NewLightHouseFromConfig(b.Context(), l, c, cs, nil, nil)
require.NoError(b, err)
hAddr := netip.MustParseAddrPort("4.5.6.7:12345")
hAddr2 := netip.MustParseAddrPort("4.5.6.7:12346")
vpnIp3 := netip.MustParseAddr("0.0.0.3")
lh.addrMap[vpnIp3] = NewRemoteList([]netip.Addr{vpnIp3}, nil)
lh.addrMap[vpnIp3].unlockedSetV4(
vpnIp3,
vpnIp3,
[]*V4AddrPort{
netAddrToProtoV4AddrPort(hAddr.Addr(), hAddr.Port()),
netAddrToProtoV4AddrPort(hAddr2.Addr(), hAddr2.Port()),
},
func(netip.Addr, *V4AddrPort) bool { return true },
)
rAddr := netip.MustParseAddrPort("1.2.2.3:12345")
rAddr2 := netip.MustParseAddrPort("1.2.2.3:12346")
vpnIp2 := netip.MustParseAddr("0.0.0.3")
lh.addrMap[vpnIp2] = NewRemoteList([]netip.Addr{vpnIp2}, nil)
lh.addrMap[vpnIp2].unlockedSetV4(
vpnIp3,
vpnIp3,
[]*V4AddrPort{
netAddrToProtoV4AddrPort(rAddr.Addr(), rAddr.Port()),
netAddrToProtoV4AddrPort(rAddr2.Addr(), rAddr2.Port()),
},
func(netip.Addr, *V4AddrPort) bool { return true },
)
mw := &mockEncWriter{}
hi := []netip.Addr{vpnIp2}
b.Run("notfound", func(b *testing.B) {
lhh := lh.NewRequestHandler()
req := &NebulaMeta{
Type: NebulaMeta_HostQuery,
Details: &NebulaMetaDetails{
OldVpnAddr: 4,
V4AddrPorts: nil,
},
}
p, err := req.Marshal()
require.NoError(b, err)
for n := 0; n < b.N; n++ {
lhh.HandleRequest(rAddr, hi, p, mw)
}
})
b.Run("found", func(b *testing.B) {
lhh := lh.NewRequestHandler()
req := &NebulaMeta{
Type: NebulaMeta_HostQuery,
Details: &NebulaMetaDetails{
OldVpnAddr: 3,
V4AddrPorts: nil,
},
}
p, err := req.Marshal()
require.NoError(b, err)
for n := 0; n < b.N; n++ {
lhh.HandleRequest(rAddr, hi, p, mw)
}
})
}
func TestLighthouse_Memory(t *testing.T) {
l := test.NewLogger()
myUdpAddr0 := netip.MustParseAddrPort("10.0.0.2:4242")
myUdpAddr1 := netip.MustParseAddrPort("192.168.0.2:4242")
myUdpAddr2 := netip.MustParseAddrPort("172.16.0.2:4242")
myUdpAddr3 := netip.MustParseAddrPort("100.152.0.2:4242")
myUdpAddr4 := netip.MustParseAddrPort("24.15.0.2:4242")
myUdpAddr5 := netip.MustParseAddrPort("192.168.0.2:4243")
myUdpAddr6 := netip.MustParseAddrPort("192.168.0.2:4244")
myUdpAddr7 := netip.MustParseAddrPort("192.168.0.2:4245")
myUdpAddr8 := netip.MustParseAddrPort("192.168.0.2:4246")
myUdpAddr9 := netip.MustParseAddrPort("192.168.0.2:4247")
myUdpAddr10 := netip.MustParseAddrPort("192.168.0.2:4248")
myUdpAddr11 := netip.MustParseAddrPort("192.168.0.2:4249")
myVpnIp := netip.MustParseAddr("10.128.0.2")
theirUdpAddr0 := netip.MustParseAddrPort("10.0.0.3:4242")
theirUdpAddr1 := netip.MustParseAddrPort("192.168.0.3:4242")
theirUdpAddr2 := netip.MustParseAddrPort("172.16.0.3:4242")
theirUdpAddr3 := netip.MustParseAddrPort("100.152.0.3:4242")
theirUdpAddr4 := netip.MustParseAddrPort("24.15.0.3:4242")
theirVpnIp := netip.MustParseAddr("10.128.0.3")
c := config.NewC(l)
c.Settings["lighthouse"] = map[string]any{"am_lighthouse": true}
c.Settings["listen"] = map[string]any{"port": 4242}
myVpnNet := netip.MustParsePrefix("10.128.0.1/24")
nt := new(bart.Lite)
nt.Insert(myVpnNet)
cs := &CertState{
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
lh.ifce = &mockEncWriter{}
require.NoError(t, err)
lhh := lh.NewRequestHandler()
// Test that my first update responds with just that
newLHHostUpdate(myUdpAddr0, myVpnIp, []netip.AddrPort{myUdpAddr1, myUdpAddr2}, lhh)
r := newLHHostRequest(myUdpAddr0, myVpnIp, myVpnIp, lhh)
assertIp4InArray(t, r.msg.Details.V4AddrPorts, myUdpAddr1, myUdpAddr2)
// Ensure we don't accumulate addresses
newLHHostUpdate(myUdpAddr0, myVpnIp, []netip.AddrPort{myUdpAddr3}, lhh)
r = newLHHostRequest(myUdpAddr0, myVpnIp, myVpnIp, lhh)
assertIp4InArray(t, r.msg.Details.V4AddrPorts, myUdpAddr3)
// Grow it back to 2
newLHHostUpdate(myUdpAddr0, myVpnIp, []netip.AddrPort{myUdpAddr1, myUdpAddr4}, lhh)
r = newLHHostRequest(myUdpAddr0, myVpnIp, myVpnIp, lhh)
assertIp4InArray(t, r.msg.Details.V4AddrPorts, myUdpAddr1, myUdpAddr4)
// Update a different host and ask about it
newLHHostUpdate(theirUdpAddr0, theirVpnIp, []netip.AddrPort{theirUdpAddr1, theirUdpAddr2, theirUdpAddr3, theirUdpAddr4}, lhh)
r = newLHHostRequest(theirUdpAddr0, theirVpnIp, theirVpnIp, lhh)
assertIp4InArray(t, r.msg.Details.V4AddrPorts, theirUdpAddr1, theirUdpAddr2, theirUdpAddr3, theirUdpAddr4)
// Have both hosts ask about the other
r = newLHHostRequest(theirUdpAddr0, theirVpnIp, myVpnIp, lhh)
assertIp4InArray(t, r.msg.Details.V4AddrPorts, myUdpAddr1, myUdpAddr4)
r = newLHHostRequest(myUdpAddr0, myVpnIp, theirVpnIp, lhh)
assertIp4InArray(t, r.msg.Details.V4AddrPorts, theirUdpAddr1, theirUdpAddr2, theirUdpAddr3, theirUdpAddr4)
// Make sure we didn't get changed
r = newLHHostRequest(myUdpAddr0, myVpnIp, myVpnIp, lhh)
assertIp4InArray(t, r.msg.Details.V4AddrPorts, myUdpAddr1, myUdpAddr4)
// Ensure proper ordering and limiting
// Send 12 addrs, get 10 back, the last 2 removed, allowing the duplicate to remain (clients dedupe)
newLHHostUpdate(
myUdpAddr0,
myVpnIp,
[]netip.AddrPort{
myUdpAddr1,
myUdpAddr2,
myUdpAddr3,
myUdpAddr4,
myUdpAddr5,
myUdpAddr5, //Duplicated on purpose
myUdpAddr6,
myUdpAddr7,
myUdpAddr8,
myUdpAddr9,
myUdpAddr10,
myUdpAddr11, // This should get cut
}, lhh)
r = newLHHostRequest(myUdpAddr0, myVpnIp, myVpnIp, lhh)
assertIp4InArray(
t,
r.msg.Details.V4AddrPorts,
myUdpAddr1, myUdpAddr2, myUdpAddr3, myUdpAddr4, myUdpAddr5, myUdpAddr5, myUdpAddr6, myUdpAddr7, myUdpAddr8, myUdpAddr9,
)
// Make sure we won't add ips in our vpn network
bad1 := netip.MustParseAddrPort("10.128.0.99:4242")
bad2 := netip.MustParseAddrPort("10.128.0.100:4242")
good := netip.MustParseAddrPort("1.128.0.99:4242")
newLHHostUpdate(myUdpAddr0, myVpnIp, []netip.AddrPort{bad1, bad2, good}, lhh)
r = newLHHostRequest(myUdpAddr0, myVpnIp, myVpnIp, lhh)
assertIp4InArray(t, r.msg.Details.V4AddrPorts, good)
}
func TestLighthouse_reload(t *testing.T) {
l := test.NewLogger()
c := config.NewC(l)
c.Settings["lighthouse"] = map[string]any{"am_lighthouse": true}
c.Settings["listen"] = map[string]any{"port": 4242}
myVpnNet := netip.MustParsePrefix("10.128.0.1/24")
nt := new(bart.Lite)
nt.Insert(myVpnNet)
cs := &CertState{
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
require.NoError(t, err)
nc := map[string]any{
"static_host_map": map[string]any{
"10.128.0.2": []any{"1.1.1.1:4242"},
},
}
rc, err := yaml.Marshal(nc)
require.NoError(t, err)
c.ReloadConfigString(string(rc))
err = lh.reload(c, false)
require.NoError(t, err)
}
func newLHHostRequest(fromAddr netip.AddrPort, myVpnIp, queryVpnIp netip.Addr, lhh *LightHouseHandler) testLhReply {
req := &NebulaMeta{
Type: NebulaMeta_HostQuery,
Details: &NebulaMetaDetails{},
}
if queryVpnIp.Is4() {
bip := queryVpnIp.As4()
req.Details.OldVpnAddr = binary.BigEndian.Uint32(bip[:])
} else {
req.Details.VpnAddr = netAddrToProtoAddr(queryVpnIp)
}
b, err := req.Marshal()
if err != nil {
panic(err)
}
filter := NebulaMeta_HostQueryReply
w := &testEncWriter{
metaFilter: &filter,
}
lhh.HandleRequest(fromAddr, []netip.Addr{myVpnIp}, b, w)
return w.lastReply
}
func newLHHostUpdate(fromAddr netip.AddrPort, vpnIp netip.Addr, addrs []netip.AddrPort, lhh *LightHouseHandler) {
req := &NebulaMeta{
Type: NebulaMeta_HostUpdateNotification,
Details: &NebulaMetaDetails{},
}
if vpnIp.Is4() {
bip := vpnIp.As4()
req.Details.OldVpnAddr = binary.BigEndian.Uint32(bip[:])
} else {
req.Details.VpnAddr = netAddrToProtoAddr(vpnIp)
}
for _, v := range addrs {
if v.Addr().Is4() {
req.Details.V4AddrPorts = append(req.Details.V4AddrPorts, netAddrToProtoV4AddrPort(v.Addr(), v.Port()))
} else {
req.Details.V6AddrPorts = append(req.Details.V6AddrPorts, netAddrToProtoV6AddrPort(v.Addr(), v.Port()))
}
}
b, err := req.Marshal()
if err != nil {
panic(err)
}
w := &testEncWriter{}
lhh.HandleRequest(fromAddr, []netip.Addr{vpnIp}, b, w)
}
type testLhReply struct {
nebType header.MessageType
nebSubType header.MessageSubType
vpnIp netip.Addr
msg *NebulaMeta
}
type testEncWriter struct {
lastReply testLhReply
metaFilter *NebulaMeta_MessageType
protocolVersion cert.Version
}
func (tw *testEncWriter) SendVia(via *HostInfo, relay *Relay, ad, nb, out []byte, nocopy bool) {
}
func (tw *testEncWriter) Handshake(vpnIp netip.Addr) {
}
func (tw *testEncWriter) SendMessageToHostInfo(t header.MessageType, st header.MessageSubType, hostinfo *HostInfo, p, _, _ []byte) {
msg := &NebulaMeta{}
err := msg.Unmarshal(p)
if tw.metaFilter == nil || msg.Type == *tw.metaFilter {
tw.lastReply = testLhReply{
nebType: t,
nebSubType: st,
vpnIp: hostinfo.vpnAddrs[0],
msg: msg,
}
}
if err != nil {
panic(err)
}
}
func (tw *testEncWriter) SendMessageToVpnAddr(t header.MessageType, st header.MessageSubType, vpnIp netip.Addr, p, _, _ []byte) {
msg := &NebulaMeta{}
err := msg.Unmarshal(p)
if tw.metaFilter == nil || msg.Type == *tw.metaFilter {
tw.lastReply = testLhReply{
nebType: t,
nebSubType: st,
vpnIp: vpnIp,
msg: msg,
}
}
if err != nil {
panic(err)
}
}
func (tw *testEncWriter) GetHostInfo(vpnIp netip.Addr) *HostInfo {
return nil
}
func (tw *testEncWriter) GetCertState() *CertState {
return &CertState{initiatingVersion: tw.protocolVersion}
}
// assertIp4InArray asserts every address in want is at the same position in have and that the lengths match
func assertIp4InArray(t *testing.T, have []*V4AddrPort, want ...netip.AddrPort) {
if !assert.Len(t, have, len(want)) {
return
}
for k, w := range want {
h := protoV4AddrPortToNetAddrPort(have[k])
if !(h == w) {
assert.Fail(t, fmt.Sprintf("Response did not contain: %v at %v, found %v", w, k, h))
}
}
}
func Test_findNetworkUnion(t *testing.T) {
var out netip.Addr
var ok bool
tenDot := netip.MustParsePrefix("10.0.0.0/8")
oneSevenTwo := netip.MustParsePrefix("172.16.0.0/16")
fe80 := netip.MustParsePrefix("fe80::/8")
fc00 := netip.MustParsePrefix("fc00::/7")
a1 := netip.MustParseAddr("10.0.0.1")
afe81 := netip.MustParseAddr("fe80::1")
//simple
out, ok = findNetworkUnion([]netip.Prefix{tenDot}, []netip.Addr{a1})
assert.True(t, ok)
assert.Equal(t, out, a1)
//mixed lengths
out, ok = findNetworkUnion([]netip.Prefix{tenDot}, []netip.Addr{a1, afe81})
assert.True(t, ok)
assert.Equal(t, out, a1)
out, ok = findNetworkUnion([]netip.Prefix{tenDot, oneSevenTwo}, []netip.Addr{a1})
assert.True(t, ok)
assert.Equal(t, out, a1)
//mixed family
out, ok = findNetworkUnion([]netip.Prefix{tenDot, oneSevenTwo, fe80}, []netip.Addr{a1})
assert.True(t, ok)
assert.Equal(t, out, a1)
out, ok = findNetworkUnion([]netip.Prefix{tenDot, oneSevenTwo, fe80}, []netip.Addr{a1, afe81})
assert.True(t, ok)
assert.Equal(t, out, a1)
//ordering
out, ok = findNetworkUnion([]netip.Prefix{tenDot, oneSevenTwo, fe80}, []netip.Addr{afe81, a1})
assert.True(t, ok)
assert.Equal(t, out, a1)
out, ok = findNetworkUnion([]netip.Prefix{fe80, tenDot, oneSevenTwo}, []netip.Addr{afe81, a1})
assert.True(t, ok)
assert.Equal(t, out, afe81)
//some mismatches
out, ok = findNetworkUnion([]netip.Prefix{tenDot, oneSevenTwo, fe80}, []netip.Addr{afe81})
assert.True(t, ok)
assert.Equal(t, out, afe81)
out, ok = findNetworkUnion([]netip.Prefix{oneSevenTwo, fe80}, []netip.Addr{a1, afe81})
assert.True(t, ok)
assert.Equal(t, out, afe81)
//falsey cases
out, ok = findNetworkUnion([]netip.Prefix{oneSevenTwo, fe80}, []netip.Addr{a1})
assert.False(t, ok)
out, ok = findNetworkUnion([]netip.Prefix{fc00, fe80}, []netip.Addr{a1})
assert.False(t, ok)
out, ok = findNetworkUnion([]netip.Prefix{oneSevenTwo, fc00}, []netip.Addr{a1, afe81})
assert.False(t, ok)
out, ok = findNetworkUnion([]netip.Prefix{fc00}, []netip.Addr{a1, afe81})
assert.False(t, ok)
}
func TestLighthouse_Dont_Delete_Static_Hosts(t *testing.T) {
l := test.NewLogger()
myUdpAddr2 := netip.MustParseAddrPort("1.2.3.4:4242")
testSameHostNotStatic := netip.MustParseAddr("10.128.0.41")
testStaticHost := netip.MustParseAddr("10.128.0.42")
//myVpnIp := netip.MustParseAddr("10.128.0.2")
c := config.NewC(l)
lh1 := "10.128.0.2"
c.Settings["lighthouse"] = map[string]any{
"hosts": []any{lh1},
"interval": "1s",
}
c.Settings["listen"] = map[string]any{"port": 4242}
c.Settings["static_host_map"] = map[string]any{
lh1: []any{"1.1.1.1:4242"},
"10.128.0.42": []any{"1.2.3.4:4242"},
}
myVpnNet := netip.MustParsePrefix("10.128.0.1/24")
nt := new(bart.Lite)
nt.Insert(myVpnNet)
cs := &CertState{
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
require.NoError(t, err)
lh.ifce = &mockEncWriter{}
//test that we actually have the static entry:
out := lh.Query(testStaticHost)
assert.NotNil(t, out)
assert.Equal(t, out.vpnAddrs[0], testStaticHost)
out.Rebuild([]netip.Prefix{}) //why tho
assert.Equal(t, out.addrs[0], myUdpAddr2)
//bolt on a lower numbered primary IP
am := lh.unlockedGetRemoteList([]netip.Addr{testStaticHost})
am.vpnAddrs = []netip.Addr{testSameHostNotStatic, testStaticHost}
lh.addrMap[testSameHostNotStatic] = am
out.Rebuild([]netip.Prefix{}) //???
//test that we actually have the static entry:
out = lh.Query(testStaticHost)
assert.NotNil(t, out)
assert.Equal(t, out.vpnAddrs[0], testSameHostNotStatic)
assert.Equal(t, out.vpnAddrs[1], testStaticHost)
assert.Equal(t, out.addrs[0], myUdpAddr2)
//test that we actually have the static entry for BOTH:
out2 := lh.Query(testSameHostNotStatic)
assert.Same(t, out2, out)
//now do the delete
lh.DeleteVpnAddrs([]netip.Addr{testSameHostNotStatic, testStaticHost})
//verify
out = lh.Query(testSameHostNotStatic)
assert.NotNil(t, out)
if out == nil {
t.Fatal("expected non-nil query for the static host")
}
assert.Equal(t, out.vpnAddrs[0], testSameHostNotStatic)
assert.Equal(t, out.vpnAddrs[1], testStaticHost)
assert.Equal(t, out.addrs[0], myUdpAddr2)
}
func TestLighthouse_DeletesWork(t *testing.T) {
l := test.NewLogger()
myUdpAddr2 := netip.MustParseAddrPort("1.2.3.4:4242")
testHost := netip.MustParseAddr("10.128.0.42")
c := config.NewC(l)
lh1 := "10.128.0.2"
c.Settings["lighthouse"] = map[string]any{
"hosts": []any{lh1},
"interval": "1s",
}
c.Settings["listen"] = map[string]any{"port": 4242}
c.Settings["static_host_map"] = map[string]any{
lh1: []any{"1.1.1.1:4242"},
}
myVpnNet := netip.MustParsePrefix("10.128.0.1/24")
nt := new(bart.Lite)
nt.Insert(myVpnNet)
cs := &CertState{
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
require.NoError(t, err)
lh.ifce = &mockEncWriter{}
//insert the host
am := lh.unlockedGetRemoteList([]netip.Addr{testHost})
am.vpnAddrs = []netip.Addr{testHost}
am.addrs = []netip.AddrPort{myUdpAddr2}
lh.addrMap[testHost] = am
am.Rebuild([]netip.Prefix{}) //???
//test that we actually have the entry:
out := lh.Query(testHost)
assert.NotNil(t, out)
assert.Equal(t, out.vpnAddrs[0], testHost)
out.Rebuild([]netip.Prefix{}) //why tho
assert.Equal(t, out.addrs[0], myUdpAddr2)
//now do the delete
lh.DeleteVpnAddrs([]netip.Addr{testHost})
//verify
out = lh.Query(testHost)
assert.Nil(t, out)
}
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