| // Copyright 2020 The gVisor Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package ipv4 |
| |
| import ( |
| "reflect" |
| "testing" |
| |
| "gvisor.dev/gvisor/pkg/tcpip" |
| "gvisor.dev/gvisor/pkg/tcpip/network/internal/testutil" |
| "gvisor.dev/gvisor/pkg/tcpip/stack" |
| ) |
| |
| var _ stack.NetworkInterface = (*testInterface)(nil) |
| |
| type testInterface struct { |
| stack.NetworkInterface |
| nicID tcpip.NICID |
| } |
| |
| func (t *testInterface) ID() tcpip.NICID { |
| return t.nicID |
| } |
| |
| func knownNICIDs(proto *protocol) []tcpip.NICID { |
| var nicIDs []tcpip.NICID |
| |
| for k := range proto.mu.eps { |
| nicIDs = append(nicIDs, k) |
| } |
| |
| return nicIDs |
| } |
| |
| func TestClearEndpointFromProtocolOnClose(t *testing.T) { |
| s := stack.New(stack.Options{ |
| NetworkProtocols: []stack.NetworkProtocolFactory{NewProtocol}, |
| }) |
| proto := s.NetworkProtocolInstance(ProtocolNumber).(*protocol) |
| nic := testInterface{nicID: 1} |
| ep := proto.NewEndpoint(&nic, nil).(*endpoint) |
| var nicIDs []tcpip.NICID |
| |
| proto.mu.Lock() |
| foundEP, hasEndpointBeforeClose := proto.mu.eps[nic.ID()] |
| nicIDs = knownNICIDs(proto) |
| proto.mu.Unlock() |
| |
| if !hasEndpointBeforeClose { |
| t.Fatalf("expected to find the nic id %d in the protocol's endpoint map (%v)", nic.ID(), nicIDs) |
| } |
| if foundEP != ep { |
| t.Fatalf("found an incorrect endpoint mapped to nic id %d", nic.ID()) |
| } |
| |
| ep.Close() |
| |
| proto.mu.Lock() |
| _, hasEP := proto.mu.eps[nic.ID()] |
| nicIDs = knownNICIDs(proto) |
| proto.mu.Unlock() |
| if hasEP { |
| t.Fatalf("unexpectedly found an endpoint mapped to the nic id %d in the protocol's known nic ids (%v)", nic.ID(), nicIDs) |
| } |
| } |
| |
| func TestMultiCounterStatsInitialization(t *testing.T) { |
| s := stack.New(stack.Options{ |
| NetworkProtocols: []stack.NetworkProtocolFactory{NewProtocol}, |
| }) |
| proto := s.NetworkProtocolInstance(ProtocolNumber).(*protocol) |
| var nic testInterface |
| ep := proto.NewEndpoint(&nic, nil).(*endpoint) |
| // At this point, the Stack's stats and the NetworkEndpoint's stats are |
| // expected to be bound by a MultiCounterStat. |
| refStack := s.Stats() |
| refEP := ep.stats.localStats |
| if err := testutil.ValidateMultiCounterStats(reflect.ValueOf(&ep.stats.ip).Elem(), []reflect.Value{reflect.ValueOf(&refEP.IP).Elem(), reflect.ValueOf(&refStack.IP).Elem()}); err != nil { |
| t.Error(err) |
| } |
| if err := testutil.ValidateMultiCounterStats(reflect.ValueOf(&ep.stats.icmp).Elem(), []reflect.Value{reflect.ValueOf(&refEP.ICMP).Elem(), reflect.ValueOf(&refStack.ICMP.V4).Elem()}); err != nil { |
| t.Error(err) |
| } |
| if err := testutil.ValidateMultiCounterStats(reflect.ValueOf(&ep.stats.igmp).Elem(), []reflect.Value{reflect.ValueOf(&refEP.IGMP).Elem(), reflect.ValueOf(&refStack.IGMP).Elem()}); err != nil { |
| t.Error(err) |
| } |
| } |