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Diffstat (limited to 'pkg/tcpip/stack/ndp_test.go')
-rw-r--r--pkg/tcpip/stack/ndp_test.go173
1 files changed, 88 insertions, 85 deletions
diff --git a/pkg/tcpip/stack/ndp_test.go b/pkg/tcpip/stack/ndp_test.go
index b5878904b..b5c6626d6 100644
--- a/pkg/tcpip/stack/ndp_test.go
+++ b/pkg/tcpip/stack/ndp_test.go
@@ -112,11 +112,12 @@ type ndpDADEvent struct {
res stack.DADResult
}
-type ndpRouterEvent struct {
- nicID tcpip.NICID
- addr tcpip.Address
- // true if router was discovered, false if invalidated.
- discovered bool
+type ndpOffLinkRouteEvent struct {
+ nicID tcpip.NICID
+ subnet tcpip.Subnet
+ router tcpip.Address
+ // true if route was updated, false if invalidated.
+ updated bool
}
type ndpPrefixEvent struct {
@@ -167,7 +168,7 @@ var _ ipv6.NDPDispatcher = (*ndpDispatcher)(nil)
// related events happen for test purposes.
type ndpDispatcher struct {
dadC chan ndpDADEvent
- routerC chan ndpRouterEvent
+ offLinkRouteC chan ndpOffLinkRouteEvent
prefixC chan ndpPrefixEvent
autoGenAddrC chan ndpAutoGenAddrEvent
rdnssC chan ndpRDNSSEvent
@@ -187,23 +188,25 @@ func (n *ndpDispatcher) OnDuplicateAddressDetectionResult(nicID tcpip.NICID, add
}
}
-// Implements ipv6.NDPDispatcher.OnDefaultRouterDiscovered.
-func (n *ndpDispatcher) OnDefaultRouterDiscovered(nicID tcpip.NICID, addr tcpip.Address) {
- if c := n.routerC; c != nil {
- c <- ndpRouterEvent{
+// Implements ipv6.NDPDispatcher.OnOffLinkRouteUpdated.
+func (n *ndpDispatcher) OnOffLinkRouteUpdated(nicID tcpip.NICID, subnet tcpip.Subnet, router tcpip.Address) {
+ if c := n.offLinkRouteC; c != nil {
+ c <- ndpOffLinkRouteEvent{
nicID,
- addr,
+ subnet,
+ router,
true,
}
}
}
-// Implements ipv6.NDPDispatcher.OnDefaultRouterInvalidated.
-func (n *ndpDispatcher) OnDefaultRouterInvalidated(nicID tcpip.NICID, addr tcpip.Address) {
- if c := n.routerC; c != nil {
- c <- ndpRouterEvent{
+// Implements ipv6.NDPDispatcher.OnOffLinkRouteInvalidated.
+func (n *ndpDispatcher) OnOffLinkRouteInvalidated(nicID tcpip.NICID, subnet tcpip.Subnet, router tcpip.Address) {
+ if c := n.offLinkRouteC; c != nil {
+ c <- ndpOffLinkRouteEvent{
nicID,
- addr,
+ subnet,
+ router,
false,
}
}
@@ -1198,9 +1201,9 @@ func TestDynamicConfigurationsDisabled(t *testing.T) {
t.Run(fmt.Sprintf("HandleRAs(%s), Forwarding(%t), Enabled(%t)", handle, forwarding, enable), func(t *testing.T) {
ndpDisp := ndpDispatcher{
- routerC: make(chan ndpRouterEvent, 1),
- prefixC: make(chan ndpPrefixEvent, 1),
- autoGenAddrC: make(chan ndpAutoGenAddrEvent, 1),
+ offLinkRouteC: make(chan ndpOffLinkRouteEvent, 1),
+ prefixC: make(chan ndpPrefixEvent, 1),
+ autoGenAddrC: make(chan ndpAutoGenAddrEvent, 1),
}
ndpConfigs := test.config(enable)
ndpConfigs.HandleRAs = handle
@@ -1270,8 +1273,8 @@ func TestDynamicConfigurationsDisabled(t *testing.T) {
t.Errorf("got v6Stats.UnhandledRouterAdvertisements.Value() = %d, want = %d", got, want)
}
select {
- case e := <-ndpDisp.routerC:
- t.Errorf("unexpectedly discovered a router when configured not to: %#v", e)
+ case e := <-ndpDisp.offLinkRouteC:
+ t.Errorf("unexpectedly updated an off-link route when configured not to: %#v", e)
default:
}
select {
@@ -1298,9 +1301,9 @@ func boolToUint64(v bool) uint64 {
}
// Check e to make sure that the event is for addr on nic with ID 1, and the
-// discovered flag set to discovered.
-func checkRouterEvent(e ndpRouterEvent, addr tcpip.Address, discovered bool) string {
- return cmp.Diff(ndpRouterEvent{nicID: 1, addr: addr, discovered: discovered}, e, cmp.AllowUnexported(e))
+// update flag set to updated.
+func checkOffLinkRouteEvent(e ndpOffLinkRouteEvent, router tcpip.Address, updated bool) string {
+ return cmp.Diff(ndpOffLinkRouteEvent{nicID: 1, subnet: header.IPv6EmptySubnet, router: router, updated: updated}, e, cmp.AllowUnexported(e))
}
func testWithRAs(t *testing.T, f func(*testing.T, ipv6.HandleRAsConfiguration, bool)) {
@@ -1336,7 +1339,7 @@ func testWithRAs(t *testing.T, f func(*testing.T, ipv6.HandleRAsConfiguration, b
func TestRouterDiscovery(t *testing.T) {
testWithRAs(t, func(t *testing.T, handleRAs ipv6.HandleRAsConfiguration, forwarding bool) {
ndpDisp := ndpDispatcher{
- routerC: make(chan ndpRouterEvent, 1),
+ offLinkRouteC: make(chan ndpOffLinkRouteEvent, 1),
}
e := channel.New(0, 1280, linkAddr1)
clock := faketime.NewManualClock()
@@ -1351,27 +1354,27 @@ func TestRouterDiscovery(t *testing.T) {
Clock: clock,
})
- expectRouterEvent := func(addr tcpip.Address, discovered bool) {
+ expectOffLinkRouteEvent := func(addr tcpip.Address, updated bool) {
t.Helper()
select {
- case e := <-ndpDisp.routerC:
- if diff := checkRouterEvent(e, addr, discovered); diff != "" {
- t.Errorf("router event mismatch (-want +got):\n%s", diff)
+ case e := <-ndpDisp.offLinkRouteC:
+ if diff := checkOffLinkRouteEvent(e, addr, updated); diff != "" {
+ t.Errorf("off-link route event mismatch (-want +got):\n%s", diff)
}
default:
t.Fatal("expected router discovery event")
}
}
- expectAsyncRouterInvalidationEvent := func(addr tcpip.Address, timeout time.Duration) {
+ expectAsyncOffLinkRouteInvalidationEvent := func(addr tcpip.Address, timeout time.Duration) {
t.Helper()
clock.Advance(timeout)
select {
- case e := <-ndpDisp.routerC:
- if diff := checkRouterEvent(e, addr, false); diff != "" {
- t.Errorf("router event mismatch (-want +got):\n%s", diff)
+ case e := <-ndpDisp.offLinkRouteC:
+ if diff := checkOffLinkRouteEvent(e, addr, false); diff != "" {
+ t.Errorf("off-link route event mismatch (-want +got):\n%s", diff)
}
default:
t.Fatal("timed out waiting for router discovery event")
@@ -1390,26 +1393,26 @@ func TestRouterDiscovery(t *testing.T) {
// remembered.
e.InjectInbound(header.IPv6ProtocolNumber, raBuf(llAddr2, 0))
select {
- case <-ndpDisp.routerC:
- t.Fatal("unexpectedly discovered a router with 0 lifetime")
+ case <-ndpDisp.offLinkRouteC:
+ t.Fatal("unexpectedly updated an off-link route with 0 lifetime")
default:
}
// Rx an RA from lladdr2 with a huge lifetime.
e.InjectInbound(header.IPv6ProtocolNumber, raBuf(llAddr2, 1000))
- expectRouterEvent(llAddr2, true)
+ expectOffLinkRouteEvent(llAddr2, true)
// Rx an RA from another router (lladdr3) with non-zero lifetime.
const l3LifetimeSeconds = 6
e.InjectInbound(header.IPv6ProtocolNumber, raBuf(llAddr3, l3LifetimeSeconds))
- expectRouterEvent(llAddr3, true)
+ expectOffLinkRouteEvent(llAddr3, true)
// Rx an RA from lladdr2 with lesser lifetime.
const l2LifetimeSeconds = 2
e.InjectInbound(header.IPv6ProtocolNumber, raBuf(llAddr2, l2LifetimeSeconds))
select {
- case <-ndpDisp.routerC:
- t.Fatal("Should not receive a router event when updating lifetimes for known routers")
+ case <-ndpDisp.offLinkRouteC:
+ t.Fatal("should not receive a off-link route event when updating lifetimes for known routers")
default:
}
@@ -1420,15 +1423,15 @@ func TestRouterDiscovery(t *testing.T) {
// Wait for the normal lifetime plus an extra bit for the
// router to get invalidated. If we don't get an invalidation
// event after this time, then something is wrong.
- expectAsyncRouterInvalidationEvent(llAddr2, l2LifetimeSeconds*time.Second)
+ expectAsyncOffLinkRouteInvalidationEvent(llAddr2, l2LifetimeSeconds*time.Second)
// Rx an RA from lladdr2 with huge lifetime.
e.InjectInbound(header.IPv6ProtocolNumber, raBuf(llAddr2, 1000))
- expectRouterEvent(llAddr2, true)
+ expectOffLinkRouteEvent(llAddr2, true)
// Rx an RA from lladdr2 with zero lifetime. It should be invalidated.
e.InjectInbound(header.IPv6ProtocolNumber, raBuf(llAddr2, 0))
- expectRouterEvent(llAddr2, false)
+ expectOffLinkRouteEvent(llAddr2, false)
// Wait for lladdr3's router invalidation job to execute. The lifetime
// of the router should have been updated to the most recent (smaller)
@@ -1437,7 +1440,7 @@ func TestRouterDiscovery(t *testing.T) {
// Wait for the normal lifetime plus an extra bit for the
// router to get invalidated. If we don't get an invalidation
// event after this time, then something is wrong.
- expectAsyncRouterInvalidationEvent(llAddr3, l3LifetimeSeconds*time.Second)
+ expectAsyncOffLinkRouteInvalidationEvent(llAddr3, l3LifetimeSeconds*time.Second)
})
}
@@ -1445,7 +1448,7 @@ func TestRouterDiscovery(t *testing.T) {
// ipv6.MaxDiscoveredDefaultRouters discovered routers are remembered.
func TestRouterDiscoveryMaxRouters(t *testing.T) {
ndpDisp := ndpDispatcher{
- routerC: make(chan ndpRouterEvent, 1),
+ offLinkRouteC: make(chan ndpOffLinkRouteEvent, 1),
}
e := channel.New(0, 1280, linkAddr1)
s := stack.New(stack.Options{
@@ -1472,9 +1475,9 @@ func TestRouterDiscoveryMaxRouters(t *testing.T) {
if i <= ipv6.MaxDiscoveredDefaultRouters {
select {
- case e := <-ndpDisp.routerC:
- if diff := checkRouterEvent(e, llAddr, true); diff != "" {
- t.Errorf("router event mismatch (-want +got):\n%s", diff)
+ case e := <-ndpDisp.offLinkRouteC:
+ if diff := checkOffLinkRouteEvent(e, llAddr, true); diff != "" {
+ t.Errorf("off-link route event mismatch (-want +got):\n%s", diff)
}
default:
t.Fatal("expected router discovery event")
@@ -1482,7 +1485,7 @@ func TestRouterDiscoveryMaxRouters(t *testing.T) {
} else {
select {
- case <-ndpDisp.routerC:
+ case <-ndpDisp.offLinkRouteC:
t.Fatal("should not have discovered a new router after we already discovered the max number of routers")
default:
}
@@ -4612,9 +4615,9 @@ func TestNoCleanupNDPStateWhenForwardingEnabled(t *testing.T) {
)
ndpDisp := ndpDispatcher{
- routerC: make(chan ndpRouterEvent, 1),
- prefixC: make(chan ndpPrefixEvent, 1),
- autoGenAddrC: make(chan ndpAutoGenAddrEvent, 1),
+ offLinkRouteC: make(chan ndpOffLinkRouteEvent, 1),
+ prefixC: make(chan ndpPrefixEvent, 1),
+ autoGenAddrC: make(chan ndpAutoGenAddrEvent, 1),
}
s := stack.New(stack.Options{
NetworkProtocols: []stack.NetworkProtocolFactory{ipv6.NewProtocolWithOptions(ipv6.Options{
@@ -4657,17 +4660,17 @@ func TestNoCleanupNDPStateWhenForwardingEnabled(t *testing.T) {
),
)
select {
- case e := <-ndpDisp.routerC:
- if diff := checkRouterEvent(e, llAddr3, true /* discovered */); diff != "" {
- t.Errorf("router event mismatch (-want +got):\n%s", diff)
+ case e := <-ndpDisp.offLinkRouteC:
+ if diff := checkOffLinkRouteEvent(e, llAddr3, true /* discovered */); diff != "" {
+ t.Errorf("off-link route event mismatch (-want +got):\n%s", diff)
}
default:
- t.Errorf("expected router event for %s on NIC(%d)", llAddr3, nicID)
+ t.Errorf("expected off-link route event for %s on NIC(%d)", llAddr3, nicID)
}
select {
case e := <-ndpDisp.prefixC:
if diff := checkPrefixEvent(e, subnet, true /* discovered */); diff != "" {
- t.Errorf("router event mismatch (-want +got):\n%s", diff)
+ t.Errorf("off-link route event mismatch (-want +got):\n%s", diff)
}
default:
t.Errorf("expected prefix event for %s on NIC(%d)", prefix, nicID)
@@ -4689,8 +4692,8 @@ func TestNoCleanupNDPStateWhenForwardingEnabled(t *testing.T) {
t.Fatalf("SetForwardingDefaultAndAllNICs(%d, %t): %s", ipv6.ProtocolNumber, forwarding, err)
}
select {
- case e := <-ndpDisp.routerC:
- t.Errorf("unexpected router event = %#v", e)
+ case e := <-ndpDisp.offLinkRouteC:
+ t.Errorf("unexpected off-link route event = %#v", e)
default:
}
select {
@@ -4776,9 +4779,9 @@ func TestCleanupNDPState(t *testing.T) {
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
ndpDisp := ndpDispatcher{
- routerC: make(chan ndpRouterEvent, maxRouterAndPrefixEvents),
- prefixC: make(chan ndpPrefixEvent, maxRouterAndPrefixEvents),
- autoGenAddrC: make(chan ndpAutoGenAddrEvent, test.maxAutoGenAddrEvents),
+ offLinkRouteC: make(chan ndpOffLinkRouteEvent, maxRouterAndPrefixEvents),
+ prefixC: make(chan ndpPrefixEvent, maxRouterAndPrefixEvents),
+ autoGenAddrC: make(chan ndpAutoGenAddrEvent, test.maxAutoGenAddrEvents),
}
clock := faketime.NewManualClock()
s := stack.New(stack.Options{
@@ -4795,14 +4798,14 @@ func TestCleanupNDPState(t *testing.T) {
Clock: clock,
})
- expectRouterEvent := func() (bool, ndpRouterEvent) {
+ expectOffLinkRouteEvent := func() (bool, ndpOffLinkRouteEvent) {
select {
- case e := <-ndpDisp.routerC:
+ case e := <-ndpDisp.offLinkRouteC:
return true, e
default:
}
- return false, ndpRouterEvent{}
+ return false, ndpOffLinkRouteEvent{}
}
expectPrefixEvent := func() (bool, ndpPrefixEvent) {
@@ -4847,8 +4850,8 @@ func TestCleanupNDPState(t *testing.T) {
// multiple addresses.
e1.InjectInbound(header.IPv6ProtocolNumber, raBufWithPI(llAddr3, lifetimeSeconds, prefix1, true, true, lifetimeSeconds, lifetimeSeconds))
- if ok, _ := expectRouterEvent(); !ok {
- t.Errorf("expected router event for %s on NIC(%d)", llAddr3, nicID1)
+ if ok, _ := expectOffLinkRouteEvent(); !ok {
+ t.Errorf("expected off-link route event for %s on NIC(%d)", llAddr3, nicID1)
}
if ok, _ := expectPrefixEvent(); !ok {
t.Errorf("expected prefix event for %s on NIC(%d)", prefix1, nicID1)
@@ -4858,8 +4861,8 @@ func TestCleanupNDPState(t *testing.T) {
}
e1.InjectInbound(header.IPv6ProtocolNumber, raBufWithPI(llAddr4, lifetimeSeconds, prefix2, true, true, lifetimeSeconds, lifetimeSeconds))
- if ok, _ := expectRouterEvent(); !ok {
- t.Errorf("expected router event for %s on NIC(%d)", llAddr4, nicID1)
+ if ok, _ := expectOffLinkRouteEvent(); !ok {
+ t.Errorf("expected off-link route event for %s on NIC(%d)", llAddr4, nicID1)
}
if ok, _ := expectPrefixEvent(); !ok {
t.Errorf("expected prefix event for %s on NIC(%d)", prefix2, nicID1)
@@ -4869,8 +4872,8 @@ func TestCleanupNDPState(t *testing.T) {
}
e2.InjectInbound(header.IPv6ProtocolNumber, raBufWithPI(llAddr3, lifetimeSeconds, prefix1, true, true, lifetimeSeconds, lifetimeSeconds))
- if ok, _ := expectRouterEvent(); !ok {
- t.Errorf("expected router event for %s on NIC(%d)", llAddr3, nicID2)
+ if ok, _ := expectOffLinkRouteEvent(); !ok {
+ t.Errorf("expected off-link route event for %s on NIC(%d)", llAddr3, nicID2)
}
if ok, _ := expectPrefixEvent(); !ok {
t.Errorf("expected prefix event for %s on NIC(%d)", prefix1, nicID2)
@@ -4880,8 +4883,8 @@ func TestCleanupNDPState(t *testing.T) {
}
e2.InjectInbound(header.IPv6ProtocolNumber, raBufWithPI(llAddr4, lifetimeSeconds, prefix2, true, true, lifetimeSeconds, lifetimeSeconds))
- if ok, _ := expectRouterEvent(); !ok {
- t.Errorf("expected router event for %s on NIC(%d)", llAddr4, nicID2)
+ if ok, _ := expectOffLinkRouteEvent(); !ok {
+ t.Errorf("expected off-link route event for %s on NIC(%d)", llAddr4, nicID2)
}
if ok, _ := expectPrefixEvent(); !ok {
t.Errorf("expected prefix event for %s on NIC(%d)", prefix2, nicID2)
@@ -4922,14 +4925,14 @@ func TestCleanupNDPState(t *testing.T) {
test.cleanupFn(t, s)
// Collect invalidation events after having NDP state cleaned up.
- gotRouterEvents := make(map[ndpRouterEvent]int)
+ gotOffLinkRouteEvents := make(map[ndpOffLinkRouteEvent]int)
for i := 0; i < maxRouterAndPrefixEvents; i++ {
- ok, e := expectRouterEvent()
+ ok, e := expectOffLinkRouteEvent()
if !ok {
- t.Errorf("expected %d router events after becoming a router; got = %d", maxRouterAndPrefixEvents, i)
+ t.Errorf("expected %d off-link route events after becoming a router; got = %d", maxRouterAndPrefixEvents, i)
break
}
- gotRouterEvents[e]++
+ gotOffLinkRouteEvents[e]++
}
gotPrefixEvents := make(map[ndpPrefixEvent]int)
for i := 0; i < maxRouterAndPrefixEvents; i++ {
@@ -4956,14 +4959,14 @@ func TestCleanupNDPState(t *testing.T) {
t.FailNow()
}
- expectedRouterEvents := map[ndpRouterEvent]int{
- {nicID: nicID1, addr: llAddr3, discovered: false}: 1,
- {nicID: nicID1, addr: llAddr4, discovered: false}: 1,
- {nicID: nicID2, addr: llAddr3, discovered: false}: 1,
- {nicID: nicID2, addr: llAddr4, discovered: false}: 1,
+ expectedOffLinkRouteEvents := map[ndpOffLinkRouteEvent]int{
+ {nicID: nicID1, subnet: header.IPv6EmptySubnet, router: llAddr3, updated: false}: 1,
+ {nicID: nicID1, subnet: header.IPv6EmptySubnet, router: llAddr4, updated: false}: 1,
+ {nicID: nicID2, subnet: header.IPv6EmptySubnet, router: llAddr3, updated: false}: 1,
+ {nicID: nicID2, subnet: header.IPv6EmptySubnet, router: llAddr4, updated: false}: 1,
}
- if diff := cmp.Diff(expectedRouterEvents, gotRouterEvents); diff != "" {
- t.Errorf("router events mismatch (-want +got):\n%s", diff)
+ if diff := cmp.Diff(expectedOffLinkRouteEvents, gotOffLinkRouteEvents); diff != "" {
+ t.Errorf("off-link route events mismatch (-want +got):\n%s", diff)
}
expectedPrefixEvents := map[ndpPrefixEvent]int{
{nicID: nicID1, prefix: subnet1, discovered: false}: 1,
@@ -5027,8 +5030,8 @@ func TestCleanupNDPState(t *testing.T) {
// cancelled when the NDP state was cleaned up).
clock.Advance(lifetimeSeconds * time.Second)
select {
- case <-ndpDisp.routerC:
- t.Error("unexpected router event")
+ case <-ndpDisp.offLinkRouteC:
+ t.Error("unexpected off-link route event")
default:
}
select {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 09:27:21 +0000