diff options
| -rw-r--r-- | test/packetimpact/tests/BUILD | 11 | ||||
| -rw-r--r-- | test/packetimpact/tests/udp_discard_mcast_source_addr_test.go | 92 |
2 files changed, 103 insertions, 0 deletions
diff --git a/test/packetimpact/tests/BUILD b/test/packetimpact/tests/BUILD index 8051562b2..6a07889be 100644 --- a/test/packetimpact/tests/BUILD +++ b/test/packetimpact/tests/BUILD @@ -27,6 +27,17 @@ packetimpact_go_test( ) packetimpact_go_test( + name = "udp_discard_mcast_source_addr", + srcs = ["udp_discard_mcast_source_addr_test.go"], + deps = [ + "//pkg/tcpip", + "//pkg/tcpip/header", + "//test/packetimpact/testbench", + "@org_golang_x_sys//unix:go_default_library", + ], +) + +packetimpact_go_test( name = "udp_recv_mcast_bcast", srcs = ["udp_recv_mcast_bcast_test.go"], # TODO(b/152813495): Fix netstack then remove the line below. diff --git a/test/packetimpact/tests/udp_discard_mcast_source_addr_test.go b/test/packetimpact/tests/udp_discard_mcast_source_addr_test.go new file mode 100644 index 000000000..b0315e67c --- /dev/null +++ b/test/packetimpact/tests/udp_discard_mcast_source_addr_test.go @@ -0,0 +1,92 @@ +// 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 udp_discard_mcast_source_addr_test + +import ( + "context" + "flag" + "fmt" + "net" + "syscall" + "testing" + + "golang.org/x/sys/unix" + "gvisor.dev/gvisor/pkg/tcpip" + "gvisor.dev/gvisor/test/packetimpact/testbench" +) + +var oneSecond = unix.Timeval{Sec: 1, Usec: 0} + +func init() { + testbench.RegisterFlags(flag.CommandLine) +} + +func TestDiscardsUDPPacketsWithMcastSourceAddressV4(t *testing.T) { + dut := testbench.NewDUT(t) + defer dut.TearDown() + remoteFD, remotePort := dut.CreateBoundSocket(unix.SOCK_DGRAM, unix.IPPROTO_UDP, net.ParseIP(testbench.RemoteIPv4)) + defer dut.Close(remoteFD) + dut.SetSockOptTimeval(remoteFD, unix.SOL_SOCKET, unix.SO_RCVTIMEO, &oneSecond) + conn := testbench.NewUDPIPv4(t, testbench.UDP{DstPort: &remotePort}, testbench.UDP{SrcPort: &remotePort}) + defer conn.Close() + + for _, mcastAddr := range []net.IP{ + net.IPv4allsys, + net.IPv4allrouter, + net.IPv4(224, 0, 1, 42), + net.IPv4(232, 1, 2, 3), + } { + t.Run(fmt.Sprintf("srcaddr=%s", mcastAddr), func(t *testing.T) { + conn.SendIP( + testbench.IPv4{SrcAddr: testbench.Address(tcpip.Address(mcastAddr.To4()))}, + testbench.UDP{}, + ) + + ret, payload, errno := dut.RecvWithErrno(context.Background(), remoteFD, 100, 0) + if errno != syscall.EAGAIN || errno != syscall.EWOULDBLOCK { + t.Errorf("Recv got unexpected result, ret=%d, payload=%q, errno=%s", ret, payload, errno) + } + }) + } +} + +func TestDiscardsUDPPacketsWithMcastSourceAddressV6(t *testing.T) { + dut := testbench.NewDUT(t) + defer dut.TearDown() + remoteFD, remotePort := dut.CreateBoundSocket(unix.SOCK_DGRAM, unix.IPPROTO_UDP, net.ParseIP(testbench.RemoteIPv6)) + defer dut.Close(remoteFD) + dut.SetSockOptTimeval(remoteFD, unix.SOL_SOCKET, unix.SO_RCVTIMEO, &oneSecond) + conn := testbench.NewUDPIPv6(t, testbench.UDP{DstPort: &remotePort}, testbench.UDP{SrcPort: &remotePort}) + defer conn.Close() + + for _, mcastAddr := range []net.IP{ + net.IPv6interfacelocalallnodes, + net.IPv6linklocalallnodes, + net.IPv6linklocalallrouters, + net.ParseIP("fe01::42"), + net.ParseIP("fe02::4242"), + } { + t.Run(fmt.Sprintf("srcaddr=%s", mcastAddr), func(t *testing.T) { + conn.SendIPv6( + testbench.IPv6{SrcAddr: testbench.Address(tcpip.Address(mcastAddr.To16()))}, + testbench.UDP{}, + ) + ret, payload, errno := dut.RecvWithErrno(context.Background(), remoteFD, 100, 0) + if errno != syscall.EAGAIN || errno != syscall.EWOULDBLOCK { + t.Errorf("Recv got unexpected result, ret=%d, payload=%q, errno=%s", ret, payload, errno) + } + }) + } +} |