mirror of
https://github.com/qdm12/gluetun.git
synced 2026-05-16 21:50:22 +02:00
Quentin McGaw
39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
//go:build integration
|
|
|
|
package tcp
|
|
|
|
import (
|
|
"errors"
|
|
"net/netip"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/qdm12/gluetun/internal/command"
|
|
"github.com/qdm12/gluetun/internal/firewall"
|
|
"github.com/qdm12/gluetun/internal/pmtud/constants"
|
|
"github.com/qdm12/log"
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func Test_PathMTUDiscover(t *testing.T) {
|
|
t.Parallel()
|
|
noopLogger := log.New(log.SetLevel(log.LevelDebug))
|
|
|
|
cmder := command.New()
|
|
fw, err := firewall.NewConfig(t.Context(), noopLogger, cmder, nil, nil)
|
|
if errors.Is(err, firewall.ErrIPTablesNotSupported) {
|
|
t.Skip("iptables not installed, skipping TCP PMTUD tests")
|
|
}
|
|
require.NoError(t, err, "creating firewall config")
|
|
|
|
dst := netip.AddrPortFrom(netip.AddrFrom4([4]byte{1, 1, 1, 1}), 80)
|
|
const minMTU = constants.MinIPv6MTU
|
|
const maxMTU = constants.MaxEthernetFrameSize
|
|
const tryTimeout = time.Second
|
|
mtu, err := PathMTUDiscover(t.Context(), dst, minMTU, maxMTU, tryTimeout, fw, noopLogger)
|
|
require.NoError(t, err, "discovering path MTU")
|
|
assert.Greater(t, mtu, uint32(0), "MTU should be greater than 0")
|
|
t.Logf("discovered path MTU to %s is %d", dst, mtu)
|
|
}
|