|
| 1 | +package ingest |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "testing" |
| 6 | + "time" |
| 7 | + |
| 8 | + test2 "github.com/mariomac/guara/pkg/test" |
| 9 | + "github.com/netobserv/flowlogs-pipeline/pkg/api" |
| 10 | + "github.com/netobserv/flowlogs-pipeline/pkg/config" |
| 11 | + "github.com/netobserv/flowlogs-pipeline/pkg/operational" |
| 12 | + "github.com/netobserv/flowlogs-pipeline/pkg/test" |
| 13 | + flowgrpc "github.com/netobserv/netobserv-ebpf-agent/pkg/grpc/flow" |
| 14 | + "github.com/netobserv/netobserv-ebpf-agent/pkg/pbflow" |
| 15 | + "github.com/stretchr/testify/assert" |
| 16 | + "github.com/stretchr/testify/require" |
| 17 | +) |
| 18 | + |
| 19 | +type tlsConfig struct { |
| 20 | + clientCertPath string |
| 21 | + clientKeyPath string |
| 22 | + serverCAPathForClient string |
| 23 | + serverCertPath string |
| 24 | + serverKeyPath string |
| 25 | + clientCAPathForServer string |
| 26 | +} |
| 27 | + |
| 28 | +func TestGRPC_NoTLS(t *testing.T) { |
| 29 | + runGRPCTestForTLS(t, tlsConfig{}, "") |
| 30 | +} |
| 31 | + |
| 32 | +func TestGRPC_SimpleTLS(t *testing.T) { |
| 33 | + ca, _, _, cert, key, cleanup := test.CreateAllCerts(t) |
| 34 | + defer cleanup() |
| 35 | + runGRPCTestForTLS( |
| 36 | + t, |
| 37 | + tlsConfig{ |
| 38 | + serverCAPathForClient: ca, |
| 39 | + serverCertPath: cert, |
| 40 | + serverKeyPath: key, |
| 41 | + }, |
| 42 | + "", |
| 43 | + ) |
| 44 | +} |
| 45 | + |
| 46 | +func TestGRPC_MutualTLS(t *testing.T) { |
| 47 | + ca, user, userKey, serverCert, serverKey, cleanup := test.CreateAllCerts(t) |
| 48 | + defer cleanup() |
| 49 | + runGRPCTestForTLS( |
| 50 | + t, |
| 51 | + tlsConfig{ |
| 52 | + clientCAPathForServer: ca, |
| 53 | + clientCertPath: user, |
| 54 | + clientKeyPath: userKey, |
| 55 | + serverCAPathForClient: ca, |
| 56 | + serverCertPath: serverCert, |
| 57 | + serverKeyPath: serverKey, |
| 58 | + }, |
| 59 | + "", |
| 60 | + ) |
| 61 | +} |
| 62 | + |
| 63 | +func TestGRPC_FailExpectingTLS(t *testing.T) { |
| 64 | + _, _, _, cert, key, cleanup := test.CreateAllCerts(t) |
| 65 | + defer cleanup() |
| 66 | + runGRPCTestForTLS( |
| 67 | + t, |
| 68 | + tlsConfig{ |
| 69 | + serverCAPathForClient: "", // by not providing server CA, the client is in NOTLS mode |
| 70 | + serverCertPath: cert, |
| 71 | + serverKeyPath: key, |
| 72 | + }, |
| 73 | + "connection error", |
| 74 | + ) |
| 75 | +} |
| 76 | + |
| 77 | +func TestGRPC_FailExpectingMTLS(t *testing.T) { |
| 78 | + ca, _, _, serverCert, serverKey, cleanup := test.CreateAllCerts(t) |
| 79 | + defer cleanup() |
| 80 | + runGRPCTestForTLS( |
| 81 | + t, |
| 82 | + tlsConfig{ |
| 83 | + clientCAPathForServer: ca, |
| 84 | + clientCertPath: "", // by not providing client cert, the client is in simple TLS mode |
| 85 | + clientKeyPath: "", |
| 86 | + serverCAPathForClient: ca, |
| 87 | + serverCertPath: serverCert, |
| 88 | + serverKeyPath: serverKey, |
| 89 | + }, |
| 90 | + "write tcp", // would prefer a more explicit error, but that's all that we get: "write tcp 127.0.0.1:54154->127.0.0.1:40763: write: broken pipe" |
| 91 | + ) |
| 92 | +} |
| 93 | + |
| 94 | +func runGRPCTestForTLS(t *testing.T, certs tlsConfig, expectErrorContains string) { |
| 95 | + port, err := test2.FreeTCPPort() |
| 96 | + require.NoError(t, err) |
| 97 | + |
| 98 | + out := make(chan config.GenericMap) |
| 99 | + cfg := &config.Ingest{ |
| 100 | + GRPC: &api.IngestGRPCProto{ |
| 101 | + Port: port, |
| 102 | + CertPath: certs.serverCertPath, |
| 103 | + KeyPath: certs.serverKeyPath, |
| 104 | + ClientCAPath: certs.clientCAPathForServer, |
| 105 | + }, |
| 106 | + } |
| 107 | + ingester, err := NewGRPCProtobuf(operational.NewMetrics(&config.MetricsSettings{}), config.StageParam{Ingest: cfg}) |
| 108 | + require.NoError(t, err) |
| 109 | + |
| 110 | + go ingester.Ingest(out) |
| 111 | + |
| 112 | + flowSender, err := flowgrpc.ConnectClient("127.0.0.1", port, certs.serverCAPathForClient, certs.clientCertPath, certs.clientKeyPath) |
| 113 | + require.NoError(t, err) |
| 114 | + defer flowSender.Close() |
| 115 | + |
| 116 | + record := &pbflow.Records{ |
| 117 | + Entries: []*pbflow.Record{{ |
| 118 | + EthProtocol: 2048, |
| 119 | + Transport: &pbflow.Transport{}, |
| 120 | + Network: &pbflow.Network{ |
| 121 | + SrcAddr: &pbflow.IP{ |
| 122 | + IpFamily: &pbflow.IP_Ipv4{Ipv4: 0x01020304}, |
| 123 | + }, |
| 124 | + DstAddr: &pbflow.IP{ |
| 125 | + IpFamily: &pbflow.IP_Ipv4{Ipv4: 0x05060708}, |
| 126 | + }, |
| 127 | + }, |
| 128 | + }}, |
| 129 | + } |
| 130 | + |
| 131 | + _, err = flowSender.Client().Send(context.Background(), record) |
| 132 | + if expectErrorContains != "" { |
| 133 | + require.ErrorContains(t, err, expectErrorContains) |
| 134 | + return |
| 135 | + } |
| 136 | + require.NoError(t, err) |
| 137 | + |
| 138 | + var received config.GenericMap |
| 139 | + select { |
| 140 | + case r := <-out: |
| 141 | + received = r |
| 142 | + case <-time.After(timeout): |
| 143 | + require.Fail(t, "timeout while waiting for Ingester to receive and process data") |
| 144 | + } |
| 145 | + |
| 146 | + assert.Equal(t, "1.2.3.4", received["SrcAddr"]) |
| 147 | + assert.Equal(t, "5.6.7.8", received["DstAddr"]) |
| 148 | +} |
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