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tstest/natlab/vnet: add start of IPv6 support

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Updates #13038

Change-Id: Ic3d095f167daf6c7129463e881b18f2e0d5693f5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2024-08-13 21:09:53 -07:00
committed by Brad Fitzpatrick
parent 31b5239a2f
commit b78df4d48a
7 changed files with 660 additions and 199 deletions
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39
tstest/integration/nat/nat_test.go
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@@ -95,6 +95,10 @@ func findKernelPath(goMod string) (string, error) {
type addNodeFunc func(c *vnet.Config) *vnet.Node // returns nil to omit test
func v6cidr(n int) string {
return fmt.Sprintf("2000:%d::1/64", n)
}
func easy(c *vnet.Config) *vnet.Node {
n := c.NumNodes() + 1
return c.AddNode(c.AddNetwork(
@@ -102,6 +106,20 @@ func easy(c *vnet.Config) *vnet.Node {
fmt.Sprintf("192.168.%d.1/24", n), vnet.EasyNAT))
}
func easyAnd6(c *vnet.Config) *vnet.Node {
n := c.NumNodes() + 1
return c.AddNode(c.AddNetwork(
fmt.Sprintf("2.%d.%d.%d", n, n, n), // public IP
fmt.Sprintf("192.168.%d.1/24", n),
v6cidr(n),
vnet.EasyNAT))
}
func just6(c *vnet.Config) *vnet.Node {
n := c.NumNodes() + 1
return c.AddNode(c.AddNetwork(v6cidr(n))) // public IPv6 prefix
}
// easy + host firewall
func easyFW(c *vnet.Config) *vnet.Node {
n := c.NumNodes() + 1
@@ -255,6 +273,11 @@ func (nt *natTest) runTest(node1, node2 addNodeFunc) pingRoute {
for _, e := range node.Env() {
fmt.Fprintf(&envBuf, " tailscaled.env=%s=%s", e.Key, e.Value)
}
sysLogAddr := net.JoinHostPort(vnet.FakeSyslogIPv4().String(), "995")
if node.IsV6Only() {
fmt.Fprintf(&envBuf, " tta.nameserver=%s", vnet.FakeDNSIPv6())
sysLogAddr = net.JoinHostPort(vnet.FakeSyslogIPv6().String(), "995")
}
envStr := envBuf.String()
cmd := exec.Command("qemu-system-x86_64",
@@ -262,7 +285,7 @@ func (nt *natTest) runTest(node1, node2 addNodeFunc) pingRoute {
"-m", "384M",
"-nodefaults", "-no-user-config", "-nographic",
"-kernel", nt.kernel,
"-append", "console=hvc0 root=PARTUUID=60c24cc1-f3f9-427a-8199-76baa2d60001/PARTNROFF=1 ro init=/gokrazy/init panic=10 oops=panic pci=off nousb tsc=unstable clocksource=hpet gokrazy.remote_syslog.target=52.52.0.9:995 tailscale-tta=1"+envStr,
"-append", "console=hvc0 root=PARTUUID=60c24cc1-f3f9-427a-8199-76baa2d60001/PARTNROFF=1 ro init=/gokrazy/init panic=10 oops=panic pci=off nousb tsc=unstable clocksource=hpet gokrazy.remote_syslog.target="+sysLogAddr+" tailscale-tta=1"+envStr,
"-drive", "id=blk0,file="+disk+",format=qcow2",
"-device", "virtio-blk-device,drive=blk0",
"-netdev", "stream,id=net0,addr.type=unix,addr.path="+sockAddr,
@@ -445,6 +468,20 @@ func TestEasyEasy(t *testing.T) {
nt.want(routeDirect)
}
func TestJustIPv6(t *testing.T) {
t.Skip("TODO: get this working")
nt := newNatTest(t)
nt.runTest(just6, just6)
nt.want(routeDirect)
}
func TestEasy4AndJust6(t *testing.T) {
t.Skip("TODO: get this working")
nt := newNatTest(t)
nt.runTest(easyAnd6, just6)
nt.want(routeDirect)
}
func TestSameLAN(t *testing.T) {
nt := newNatTest(t)
nt.runTest(easy, sameLAN)