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-rw-r--r--pkg/tcpip/tests/integration/BUILD4
-rw-r--r--pkg/tcpip/tests/integration/forward_test.go378
-rw-r--r--pkg/tcpip/tests/integration/link_resolution_test.go219
3 files changed, 601 insertions, 0 deletions
diff --git a/pkg/tcpip/tests/integration/BUILD b/pkg/tcpip/tests/integration/BUILD
index 06c7a3cd3..a4f141253 100644
--- a/pkg/tcpip/tests/integration/BUILD
+++ b/pkg/tcpip/tests/integration/BUILD
@@ -6,6 +6,8 @@ go_test(
name = "integration_test",
size = "small",
srcs = [
+ "forward_test.go",
+ "link_resolution_test.go",
"loopback_test.go",
"multicast_broadcast_test.go",
],
@@ -15,6 +17,8 @@ go_test(
"//pkg/tcpip/header",
"//pkg/tcpip/link/channel",
"//pkg/tcpip/link/loopback",
+ "//pkg/tcpip/link/pipe",
+ "//pkg/tcpip/network/arp",
"//pkg/tcpip/network/ipv4",
"//pkg/tcpip/network/ipv6",
"//pkg/tcpip/stack",
diff --git a/pkg/tcpip/tests/integration/forward_test.go b/pkg/tcpip/tests/integration/forward_test.go
new file mode 100644
index 000000000..ffd38ee1a
--- /dev/null
+++ b/pkg/tcpip/tests/integration/forward_test.go
@@ -0,0 +1,378 @@
+// 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 integration_test
+
+import (
+ "net"
+ "testing"
+
+ "github.com/google/go-cmp/cmp"
+ "gvisor.dev/gvisor/pkg/tcpip"
+ "gvisor.dev/gvisor/pkg/tcpip/buffer"
+ "gvisor.dev/gvisor/pkg/tcpip/link/pipe"
+ "gvisor.dev/gvisor/pkg/tcpip/network/arp"
+ "gvisor.dev/gvisor/pkg/tcpip/network/ipv4"
+ "gvisor.dev/gvisor/pkg/tcpip/network/ipv6"
+ "gvisor.dev/gvisor/pkg/tcpip/stack"
+ "gvisor.dev/gvisor/pkg/tcpip/transport/udp"
+ "gvisor.dev/gvisor/pkg/waiter"
+)
+
+func TestForwarding(t *testing.T) {
+ const (
+ host1NICLinkAddr = tcpip.LinkAddress("\x02\x03\x03\x04\x05\x06")
+ routerNIC1LinkAddr = tcpip.LinkAddress("\x02\x03\x03\x04\x05\x07")
+ routerNIC2LinkAddr = tcpip.LinkAddress("\x02\x03\x03\x04\x05\x08")
+ host2NICLinkAddr = tcpip.LinkAddress("\x02\x03\x03\x04\x05\x09")
+
+ host1NICID = 1
+ routerNICID1 = 2
+ routerNICID2 = 3
+ host2NICID = 4
+
+ listenPort = 8080
+ )
+
+ host1IPv4Addr := tcpip.ProtocolAddress{
+ Protocol: ipv4.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("192.168.0.2").To4()),
+ PrefixLen: 24,
+ },
+ }
+ routerNIC1IPv4Addr := tcpip.ProtocolAddress{
+ Protocol: ipv4.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("192.168.0.1").To4()),
+ PrefixLen: 24,
+ },
+ }
+ routerNIC2IPv4Addr := tcpip.ProtocolAddress{
+ Protocol: ipv4.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("10.0.0.1").To4()),
+ PrefixLen: 8,
+ },
+ }
+ host2IPv4Addr := tcpip.ProtocolAddress{
+ Protocol: ipv4.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("10.0.0.2").To4()),
+ PrefixLen: 8,
+ },
+ }
+ host1IPv6Addr := tcpip.ProtocolAddress{
+ Protocol: ipv6.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("a::2").To16()),
+ PrefixLen: 64,
+ },
+ }
+ routerNIC1IPv6Addr := tcpip.ProtocolAddress{
+ Protocol: ipv6.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("a::1").To16()),
+ PrefixLen: 64,
+ },
+ }
+ routerNIC2IPv6Addr := tcpip.ProtocolAddress{
+ Protocol: ipv6.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("b::1").To16()),
+ PrefixLen: 64,
+ },
+ }
+ host2IPv6Addr := tcpip.ProtocolAddress{
+ Protocol: ipv6.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("b::2").To16()),
+ PrefixLen: 64,
+ },
+ }
+
+ type endpointAndAddresses struct {
+ serverEP tcpip.Endpoint
+ serverAddr tcpip.Address
+ serverReadableCH chan struct{}
+
+ clientEP tcpip.Endpoint
+ clientAddr tcpip.Address
+ clientReadableCH chan struct{}
+ }
+
+ newEP := func(t *testing.T, s *stack.Stack, transProto tcpip.TransportProtocolNumber, netProto tcpip.NetworkProtocolNumber) (tcpip.Endpoint, chan struct{}) {
+ t.Helper()
+ var wq waiter.Queue
+ we, ch := waiter.NewChannelEntry(nil)
+ wq.EventRegister(&we, waiter.EventIn)
+ ep, err := s.NewEndpoint(transProto, netProto, &wq)
+ if err != nil {
+ t.Fatalf("s.NewEndpoint(%d, %d, _): %s", transProto, netProto, err)
+ }
+
+ t.Cleanup(func() {
+ wq.EventUnregister(&we)
+ })
+
+ return ep, ch
+ }
+
+ tests := []struct {
+ name string
+ epAndAddrs func(t *testing.T, host1Stack, routerStack, host2Stack *stack.Stack) endpointAndAddresses
+ }{
+ {
+ name: "IPv4 host1 server with host2 client",
+ epAndAddrs: func(t *testing.T, host1Stack, routerStack, host2Stack *stack.Stack) endpointAndAddresses {
+ ep1, ep1WECH := newEP(t, host1Stack, udp.ProtocolNumber, ipv4.ProtocolNumber)
+ ep2, ep2WECH := newEP(t, host2Stack, udp.ProtocolNumber, ipv4.ProtocolNumber)
+ return endpointAndAddresses{
+ serverEP: ep1,
+ serverAddr: host1IPv4Addr.AddressWithPrefix.Address,
+ serverReadableCH: ep1WECH,
+
+ clientEP: ep2,
+ clientAddr: host2IPv4Addr.AddressWithPrefix.Address,
+ clientReadableCH: ep2WECH,
+ }
+ },
+ },
+ {
+ name: "IPv6 host2 server with host1 client",
+ epAndAddrs: func(t *testing.T, host1Stack, routerStack, host2Stack *stack.Stack) endpointAndAddresses {
+ ep1, ep1WECH := newEP(t, host2Stack, udp.ProtocolNumber, ipv6.ProtocolNumber)
+ ep2, ep2WECH := newEP(t, host1Stack, udp.ProtocolNumber, ipv6.ProtocolNumber)
+ return endpointAndAddresses{
+ serverEP: ep1,
+ serverAddr: host2IPv6Addr.AddressWithPrefix.Address,
+ serverReadableCH: ep1WECH,
+
+ clientEP: ep2,
+ clientAddr: host1IPv6Addr.AddressWithPrefix.Address,
+ clientReadableCH: ep2WECH,
+ }
+ },
+ },
+ }
+
+ for _, test := range tests {
+ t.Run(test.name, func(t *testing.T) {
+ stackOpts := stack.Options{
+ NetworkProtocols: []stack.NetworkProtocolFactory{arp.NewProtocol, ipv4.NewProtocol, ipv6.NewProtocol},
+ TransportProtocols: []stack.TransportProtocolFactory{udp.NewProtocol},
+ }
+
+ host1Stack := stack.New(stackOpts)
+ routerStack := stack.New(stackOpts)
+ host2Stack := stack.New(stackOpts)
+
+ host1NIC, routerNIC1 := pipe.New(host1NICLinkAddr, routerNIC1LinkAddr, stack.CapabilityResolutionRequired)
+ routerNIC2, host2NIC := pipe.New(routerNIC2LinkAddr, host2NICLinkAddr, stack.CapabilityResolutionRequired)
+
+ if err := host1Stack.CreateNIC(host1NICID, host1NIC); err != nil {
+ t.Fatalf("host1Stack.CreateNIC(%d, _): %s", host1NICID, err)
+ }
+ if err := routerStack.CreateNIC(routerNICID1, routerNIC1); err != nil {
+ t.Fatalf("routerStack.CreateNIC(%d, _): %s", routerNICID1, err)
+ }
+ if err := routerStack.CreateNIC(routerNICID2, routerNIC2); err != nil {
+ t.Fatalf("routerStack.CreateNIC(%d, _): %s", routerNICID2, err)
+ }
+ if err := host2Stack.CreateNIC(host2NICID, host2NIC); err != nil {
+ t.Fatalf("host2Stack.CreateNIC(%d, _): %s", host2NICID, err)
+ }
+
+ if err := routerStack.SetForwarding(ipv4.ProtocolNumber, true); err != nil {
+ t.Fatalf("routerStack.SetForwarding(%d): %s", ipv4.ProtocolNumber, err)
+ }
+ if err := routerStack.SetForwarding(ipv6.ProtocolNumber, true); err != nil {
+ t.Fatalf("routerStack.SetForwarding(%d): %s", ipv6.ProtocolNumber, err)
+ }
+
+ if err := host1Stack.AddAddress(host1NICID, arp.ProtocolNumber, arp.ProtocolAddress); err != nil {
+ t.Fatalf("host1Stack.AddAddress(%d, %d, %s): %s", host1NICID, arp.ProtocolNumber, arp.ProtocolAddress, err)
+ }
+ if err := routerStack.AddAddress(routerNICID1, arp.ProtocolNumber, arp.ProtocolAddress); err != nil {
+ t.Fatalf("routerStack.AddAddress(%d, %d, %s): %s", routerNICID1, arp.ProtocolNumber, arp.ProtocolAddress, err)
+ }
+ if err := routerStack.AddAddress(routerNICID2, arp.ProtocolNumber, arp.ProtocolAddress); err != nil {
+ t.Fatalf("routerStack.AddAddress(%d, %d, %s): %s", routerNICID2, arp.ProtocolNumber, arp.ProtocolAddress, err)
+ }
+ if err := host2Stack.AddAddress(host2NICID, arp.ProtocolNumber, arp.ProtocolAddress); err != nil {
+ t.Fatalf("host2Stack.AddAddress(%d, %d, %s): %s", host2NICID, arp.ProtocolNumber, arp.ProtocolAddress, err)
+ }
+
+ if err := host1Stack.AddProtocolAddress(host1NICID, host1IPv4Addr); err != nil {
+ t.Fatalf("host1Stack.AddProtocolAddress(%d, %#v): %s", host1NICID, host1IPv4Addr, err)
+ }
+ if err := routerStack.AddProtocolAddress(routerNICID1, routerNIC1IPv4Addr); err != nil {
+ t.Fatalf("routerStack.AddProtocolAddress(%d, %#v): %s", routerNICID1, routerNIC1IPv4Addr, err)
+ }
+ if err := routerStack.AddProtocolAddress(routerNICID2, routerNIC2IPv4Addr); err != nil {
+ t.Fatalf("routerStack.AddProtocolAddress(%d, %#v): %s", routerNICID2, routerNIC2IPv4Addr, err)
+ }
+ if err := host2Stack.AddProtocolAddress(host2NICID, host2IPv4Addr); err != nil {
+ t.Fatalf("host2Stack.AddProtocolAddress(%d, %#v): %s", host2NICID, host2IPv4Addr, err)
+ }
+ if err := host1Stack.AddProtocolAddress(host1NICID, host1IPv6Addr); err != nil {
+ t.Fatalf("host1Stack.AddProtocolAddress(%d, %#v): %s", host1NICID, host1IPv6Addr, err)
+ }
+ if err := routerStack.AddProtocolAddress(routerNICID1, routerNIC1IPv6Addr); err != nil {
+ t.Fatalf("routerStack.AddProtocolAddress(%d, %#v): %s", routerNICID1, routerNIC1IPv6Addr, err)
+ }
+ if err := routerStack.AddProtocolAddress(routerNICID2, routerNIC2IPv6Addr); err != nil {
+ t.Fatalf("routerStack.AddProtocolAddress(%d, %#v): %s", routerNICID2, routerNIC2IPv6Addr, err)
+ }
+ if err := host2Stack.AddProtocolAddress(host2NICID, host2IPv6Addr); err != nil {
+ t.Fatalf("host2Stack.AddProtocolAddress(%d, %#v): %s", host2NICID, host2IPv6Addr, err)
+ }
+
+ host1Stack.SetRouteTable([]tcpip.Route{
+ tcpip.Route{
+ Destination: host1IPv4Addr.AddressWithPrefix.Subnet(),
+ NIC: host1NICID,
+ },
+ tcpip.Route{
+ Destination: host1IPv6Addr.AddressWithPrefix.Subnet(),
+ NIC: host1NICID,
+ },
+ tcpip.Route{
+ Destination: host2IPv4Addr.AddressWithPrefix.Subnet(),
+ Gateway: routerNIC1IPv4Addr.AddressWithPrefix.Address,
+ NIC: host1NICID,
+ },
+ tcpip.Route{
+ Destination: host2IPv6Addr.AddressWithPrefix.Subnet(),
+ Gateway: routerNIC1IPv6Addr.AddressWithPrefix.Address,
+ NIC: host1NICID,
+ },
+ })
+ routerStack.SetRouteTable([]tcpip.Route{
+ tcpip.Route{
+ Destination: routerNIC1IPv4Addr.AddressWithPrefix.Subnet(),
+ NIC: routerNICID1,
+ },
+ tcpip.Route{
+ Destination: routerNIC1IPv6Addr.AddressWithPrefix.Subnet(),
+ NIC: routerNICID1,
+ },
+ tcpip.Route{
+ Destination: routerNIC2IPv4Addr.AddressWithPrefix.Subnet(),
+ NIC: routerNICID2,
+ },
+ tcpip.Route{
+ Destination: routerNIC2IPv6Addr.AddressWithPrefix.Subnet(),
+ NIC: routerNICID2,
+ },
+ })
+ host2Stack.SetRouteTable([]tcpip.Route{
+ tcpip.Route{
+ Destination: host2IPv4Addr.AddressWithPrefix.Subnet(),
+ NIC: host2NICID,
+ },
+ tcpip.Route{
+ Destination: host2IPv6Addr.AddressWithPrefix.Subnet(),
+ NIC: host2NICID,
+ },
+ tcpip.Route{
+ Destination: host1IPv4Addr.AddressWithPrefix.Subnet(),
+ Gateway: routerNIC2IPv4Addr.AddressWithPrefix.Address,
+ NIC: host2NICID,
+ },
+ tcpip.Route{
+ Destination: host1IPv6Addr.AddressWithPrefix.Subnet(),
+ Gateway: routerNIC2IPv6Addr.AddressWithPrefix.Address,
+ NIC: host2NICID,
+ },
+ })
+
+ epsAndAddrs := test.epAndAddrs(t, host1Stack, routerStack, host2Stack)
+ defer epsAndAddrs.serverEP.Close()
+ defer epsAndAddrs.clientEP.Close()
+
+ serverAddr := tcpip.FullAddress{Addr: epsAndAddrs.serverAddr, Port: listenPort}
+ if err := epsAndAddrs.serverEP.Bind(serverAddr); err != nil {
+ t.Fatalf("epsAndAddrs.serverEP.Bind(%#v): %s", serverAddr, err)
+ }
+ clientAddr := tcpip.FullAddress{Addr: epsAndAddrs.clientAddr}
+ if err := epsAndAddrs.clientEP.Bind(clientAddr); err != nil {
+ t.Fatalf("epsAndAddrs.clientEP.Bind(%#v): %s", clientAddr, err)
+ }
+
+ write := func(ep tcpip.Endpoint, data []byte, to *tcpip.FullAddress) {
+ t.Helper()
+
+ dataPayload := tcpip.SlicePayload(data)
+ wOpts := tcpip.WriteOptions{To: to}
+ n, ch, err := ep.Write(dataPayload, wOpts)
+ if err == tcpip.ErrNoLinkAddress {
+ // Wait for link resolution to complete.
+ <-ch
+
+ n, _, err = ep.Write(dataPayload, wOpts)
+ } else if err != nil {
+ t.Fatalf("ep.Write(_, _): %s", err)
+ }
+
+ if err != nil {
+ t.Fatalf("ep.Write(_, _): %s", err)
+ }
+ if want := int64(len(data)); n != want {
+ t.Fatalf("got ep.Write(_, _) = (%d, _, _), want = (%d, _, _)", n, want)
+ }
+ }
+
+ data := []byte{1, 2, 3, 4}
+ write(epsAndAddrs.clientEP, data, &serverAddr)
+
+ read := func(ch chan struct{}, ep tcpip.Endpoint, data []byte, expectedFrom tcpip.Address) tcpip.FullAddress {
+ t.Helper()
+
+ // Wait for the endpoint to be readable.
+ <-ch
+
+ var addr tcpip.FullAddress
+ v, _, err := ep.Read(&addr)
+ if err != nil {
+ t.Fatalf("ep.Read(_): %s", err)
+ }
+
+ if diff := cmp.Diff(v, buffer.View(data)); diff != "" {
+ t.Errorf("received data mismatch (-want +got):\n%s", diff)
+ }
+ if addr.Addr != expectedFrom {
+ t.Errorf("got addr.Addr = %s, want = %s", addr.Addr, expectedFrom)
+ }
+
+ if t.Failed() {
+ t.FailNow()
+ }
+
+ return addr
+ }
+
+ addr := read(epsAndAddrs.serverReadableCH, epsAndAddrs.serverEP, data, epsAndAddrs.clientAddr)
+ // Unspecify the NIC since NIC IDs are meaningless across stacks.
+ addr.NIC = 0
+
+ data = tcpip.SlicePayload([]byte{5, 6, 7, 8, 9, 10, 11, 12})
+ write(epsAndAddrs.serverEP, data, &addr)
+ addr = read(epsAndAddrs.clientReadableCH, epsAndAddrs.clientEP, data, epsAndAddrs.serverAddr)
+ if addr.Port != listenPort {
+ t.Errorf("got addr.Port = %d, want = %d", addr.Port, listenPort)
+ }
+ })
+ }
+}
diff --git a/pkg/tcpip/tests/integration/link_resolution_test.go b/pkg/tcpip/tests/integration/link_resolution_test.go
new file mode 100644
index 000000000..bf3a6f6ee
--- /dev/null
+++ b/pkg/tcpip/tests/integration/link_resolution_test.go
@@ -0,0 +1,219 @@
+// 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 integration_test
+
+import (
+ "net"
+ "testing"
+
+ "github.com/google/go-cmp/cmp"
+ "gvisor.dev/gvisor/pkg/tcpip"
+ "gvisor.dev/gvisor/pkg/tcpip/buffer"
+ "gvisor.dev/gvisor/pkg/tcpip/header"
+ "gvisor.dev/gvisor/pkg/tcpip/link/pipe"
+ "gvisor.dev/gvisor/pkg/tcpip/network/arp"
+ "gvisor.dev/gvisor/pkg/tcpip/network/ipv4"
+ "gvisor.dev/gvisor/pkg/tcpip/network/ipv6"
+ "gvisor.dev/gvisor/pkg/tcpip/stack"
+ "gvisor.dev/gvisor/pkg/tcpip/transport/icmp"
+ "gvisor.dev/gvisor/pkg/waiter"
+)
+
+var (
+ host1NICLinkAddr = tcpip.LinkAddress("\x02\x03\x03\x04\x05\x06")
+ host2NICLinkAddr = tcpip.LinkAddress("\x02\x03\x03\x04\x05\x09")
+
+ host1IPv4Addr = tcpip.ProtocolAddress{
+ Protocol: ipv4.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("192.168.0.1").To4()),
+ PrefixLen: 24,
+ },
+ }
+ host2IPv4Addr = tcpip.ProtocolAddress{
+ Protocol: ipv4.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("192.168.0.2").To4()),
+ PrefixLen: 8,
+ },
+ }
+ host1IPv6Addr = tcpip.ProtocolAddress{
+ Protocol: ipv6.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("a::1").To16()),
+ PrefixLen: 64,
+ },
+ }
+ host2IPv6Addr = tcpip.ProtocolAddress{
+ Protocol: ipv6.ProtocolNumber,
+ AddressWithPrefix: tcpip.AddressWithPrefix{
+ Address: tcpip.Address(net.ParseIP("a::2").To16()),
+ PrefixLen: 64,
+ },
+ }
+)
+
+// TestPing tests that two hosts can ping eachother when link resolution is
+// enabled.
+func TestPing(t *testing.T) {
+ const (
+ host1NICID = 1
+ host2NICID = 4
+
+ // icmpDataOffset is the offset to the data in both ICMPv4 and ICMPv6 echo
+ // request/reply packets.
+ icmpDataOffset = 8
+ )
+
+ tests := []struct {
+ name string
+ transProto tcpip.TransportProtocolNumber
+ netProto tcpip.NetworkProtocolNumber
+ remoteAddr tcpip.Address
+ icmpBuf func(*testing.T) buffer.View
+ }{
+ {
+ name: "IPv4 Ping",
+ transProto: icmp.ProtocolNumber4,
+ netProto: ipv4.ProtocolNumber,
+ remoteAddr: host2IPv4Addr.AddressWithPrefix.Address,
+ icmpBuf: func(t *testing.T) buffer.View {
+ data := [8]byte{1, 2, 3, 4, 5, 6, 7, 8}
+ hdr := header.ICMPv4(make([]byte, header.ICMPv4MinimumSize+len(data)))
+ hdr.SetType(header.ICMPv4Echo)
+ if n := copy(hdr.Payload(), data[:]); n != len(data) {
+ t.Fatalf("copied %d bytes but expected to copy %d bytes", n, len(data))
+ }
+ return buffer.View(hdr)
+ },
+ },
+ {
+ name: "IPv6 Ping",
+ transProto: icmp.ProtocolNumber6,
+ netProto: ipv6.ProtocolNumber,
+ remoteAddr: host2IPv6Addr.AddressWithPrefix.Address,
+ icmpBuf: func(t *testing.T) buffer.View {
+ data := [8]byte{1, 2, 3, 4, 5, 6, 7, 8}
+ hdr := header.ICMPv6(make([]byte, header.ICMPv6MinimumSize+len(data)))
+ hdr.SetType(header.ICMPv6EchoRequest)
+ if n := copy(hdr.Payload(), data[:]); n != len(data) {
+ t.Fatalf("copied %d bytes but expected to copy %d bytes", n, len(data))
+ }
+ return buffer.View(hdr)
+ },
+ },
+ }
+
+ for _, test := range tests {
+ t.Run(test.name, func(t *testing.T) {
+ stackOpts := stack.Options{
+ NetworkProtocols: []stack.NetworkProtocolFactory{arp.NewProtocol, ipv4.NewProtocol, ipv6.NewProtocol},
+ TransportProtocols: []stack.TransportProtocolFactory{icmp.NewProtocol4, icmp.NewProtocol6},
+ }
+
+ host1Stack := stack.New(stackOpts)
+ host2Stack := stack.New(stackOpts)
+
+ host1NIC, host2NIC := pipe.New(host1NICLinkAddr, host2NICLinkAddr, stack.CapabilityResolutionRequired)
+
+ if err := host1Stack.CreateNIC(host1NICID, host1NIC); err != nil {
+ t.Fatalf("host1Stack.CreateNIC(%d, _): %s", host1NICID, err)
+ }
+ if err := host2Stack.CreateNIC(host2NICID, host2NIC); err != nil {
+ t.Fatalf("host2Stack.CreateNIC(%d, _): %s", host2NICID, err)
+ }
+
+ if err := host1Stack.AddAddress(host1NICID, arp.ProtocolNumber, arp.ProtocolAddress); err != nil {
+ t.Fatalf("host1Stack.AddAddress(%d, %d, %s): %s", host1NICID, arp.ProtocolNumber, arp.ProtocolAddress, err)
+ }
+ if err := host2Stack.AddAddress(host2NICID, arp.ProtocolNumber, arp.ProtocolAddress); err != nil {
+ t.Fatalf("host2Stack.AddAddress(%d, %d, %s): %s", host2NICID, arp.ProtocolNumber, arp.ProtocolAddress, err)
+ }
+
+ if err := host1Stack.AddProtocolAddress(host1NICID, host1IPv4Addr); err != nil {
+ t.Fatalf("host1Stack.AddProtocolAddress(%d, %#v): %s", host1NICID, host1IPv4Addr, err)
+ }
+ if err := host2Stack.AddProtocolAddress(host2NICID, host2IPv4Addr); err != nil {
+ t.Fatalf("host2Stack.AddProtocolAddress(%d, %#v): %s", host2NICID, host2IPv4Addr, err)
+ }
+ if err := host1Stack.AddProtocolAddress(host1NICID, host1IPv6Addr); err != nil {
+ t.Fatalf("host1Stack.AddProtocolAddress(%d, %#v): %s", host1NICID, host1IPv6Addr, err)
+ }
+ if err := host2Stack.AddProtocolAddress(host2NICID, host2IPv6Addr); err != nil {
+ t.Fatalf("host2Stack.AddProtocolAddress(%d, %#v): %s", host2NICID, host2IPv6Addr, err)
+ }
+
+ host1Stack.SetRouteTable([]tcpip.Route{
+ tcpip.Route{
+ Destination: host1IPv4Addr.AddressWithPrefix.Subnet(),
+ NIC: host1NICID,
+ },
+ tcpip.Route{
+ Destination: host1IPv6Addr.AddressWithPrefix.Subnet(),
+ NIC: host1NICID,
+ },
+ })
+ host2Stack.SetRouteTable([]tcpip.Route{
+ tcpip.Route{
+ Destination: host2IPv4Addr.AddressWithPrefix.Subnet(),
+ NIC: host2NICID,
+ },
+ tcpip.Route{
+ Destination: host2IPv6Addr.AddressWithPrefix.Subnet(),
+ NIC: host2NICID,
+ },
+ })
+
+ var wq waiter.Queue
+ we, waiterCH := waiter.NewChannelEntry(nil)
+ wq.EventRegister(&we, waiter.EventIn)
+ ep, err := host1Stack.NewEndpoint(test.transProto, test.netProto, &wq)
+ if err != nil {
+ t.Fatalf("host1Stack.NewEndpoint(%d, %d, _): %s", test.transProto, test.netProto, err)
+ }
+ defer ep.Close()
+
+ // The first write should trigger link resolution.
+ icmpBuf := test.icmpBuf(t)
+ wOpts := tcpip.WriteOptions{To: &tcpip.FullAddress{Addr: test.remoteAddr}}
+ if _, ch, err := ep.Write(tcpip.SlicePayload(icmpBuf), wOpts); err != tcpip.ErrNoLinkAddress {
+ t.Fatalf("got ep.Write(_, _) = %s, want = %s", err, tcpip.ErrNoLinkAddress)
+ } else {
+ // Wait for link resolution to complete.
+ <-ch
+ }
+ if n, _, err := ep.Write(tcpip.SlicePayload(icmpBuf), wOpts); err != nil {
+ t.Fatalf("ep.Write(_, _): %s", err)
+ } else if want := int64(len(icmpBuf)); n != want {
+ t.Fatalf("got ep.Write(_, _) = (%d, _, _), want = (%d, _, _)", n, want)
+ }
+
+ // Wait for the endpoint to be readable.
+ <-waiterCH
+
+ var addr tcpip.FullAddress
+ v, _, err := ep.Read(&addr)
+ if err != nil {
+ t.Fatalf("ep.Read(_): %s", err)
+ }
+ if diff := cmp.Diff(v[icmpDataOffset:], icmpBuf[icmpDataOffset:]); diff != "" {
+ t.Errorf("received data mismatch (-want +got):\n%s", diff)
+ }
+ if addr.Addr != test.remoteAddr {
+ t.Errorf("got addr.Addr = %s, want = %s", addr.Addr, test.remoteAddr)
+ }
+ })
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-19 10:26:37 +0000