diff options
Diffstat (limited to 'test/packetimpact/tests')
| -rw-r--r-- | test/packetimpact/tests/BUILD | 46 | ||||
| -rw-r--r-- | test/packetimpact/tests/Dockerfile | 17 | ||||
| -rw-r--r-- | test/packetimpact/tests/defs.bzl | 118 | ||||
| -rw-r--r-- | test/packetimpact/tests/fin_wait2_timeout_test.go | 68 | ||||
| -rw-r--r-- | test/packetimpact/tests/tcp_window_shrink_test.go | 58 | ||||
| -rwxr-xr-x | test/packetimpact/tests/test_runner.sh | 268 | ||||
| -rw-r--r-- | test/packetimpact/tests/udp_recv_multicast_test.go | 37 |
7 files changed, 0 insertions, 612 deletions
diff --git a/test/packetimpact/tests/BUILD b/test/packetimpact/tests/BUILD deleted file mode 100644 index a9b2de9b9..000000000 --- a/test/packetimpact/tests/BUILD +++ /dev/null @@ -1,46 +0,0 @@ -load("defs.bzl", "packetimpact_go_test") - -package( - default_visibility = ["//test/packetimpact:__subpackages__"], - licenses = ["notice"], -) - -packetimpact_go_test( - name = "fin_wait2_timeout", - srcs = ["fin_wait2_timeout_test.go"], - deps = [ - "//pkg/tcpip/header", - "//test/packetimpact/testbench", - "@org_golang_x_sys//unix:go_default_library", - ], -) - -packetimpact_go_test( - name = "udp_recv_multicast", - srcs = ["udp_recv_multicast_test.go"], - # TODO(b/152813495): Fix netstack then remove the line below. - netstack = False, - deps = [ - "//pkg/tcpip", - "//pkg/tcpip/header", - "//test/packetimpact/testbench", - "@org_golang_x_sys//unix:go_default_library", - ], -) - -packetimpact_go_test( - name = "tcp_window_shrink", - srcs = ["tcp_window_shrink_test.go"], - # TODO(b/153202472): Fix netstack then remove the line below. - netstack = False, - deps = [ - "//pkg/tcpip/header", - "//test/packetimpact/testbench", - "@org_golang_x_sys//unix:go_default_library", - ], -) - -sh_binary( - name = "test_runner", - srcs = ["test_runner.sh"], -) diff --git a/test/packetimpact/tests/Dockerfile b/test/packetimpact/tests/Dockerfile deleted file mode 100644 index 9075bc555..000000000 --- a/test/packetimpact/tests/Dockerfile +++ /dev/null @@ -1,17 +0,0 @@ -FROM ubuntu:bionic - -RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \ - # iptables to disable OS native packet processing. - iptables \ - # nc to check that the posix_server is running. - netcat \ - # tcpdump to log brief packet sniffing. - tcpdump \ - # ip link show to display MAC addresses. - iproute2 \ - # tshark to log verbose packet sniffing. - tshark \ - # killall for cleanup. - psmisc -RUN hash -r -CMD /bin/bash diff --git a/test/packetimpact/tests/defs.bzl b/test/packetimpact/tests/defs.bzl deleted file mode 100644 index 8c0d058b2..000000000 --- a/test/packetimpact/tests/defs.bzl +++ /dev/null @@ -1,118 +0,0 @@ -"""Defines rules for packetimpact test targets.""" - -load("//tools:defs.bzl", "go_test") - -def _packetimpact_test_impl(ctx): - test_runner = ctx.executable._test_runner - bench = ctx.actions.declare_file("%s-bench" % ctx.label.name) - bench_content = "\n".join([ - "#!/bin/bash", - # This test will run part in a distinct user namespace. This can cause - # permission problems, because all runfiles may not be owned by the - # current user, and no other users will be mapped in that namespace. - # Make sure that everything is readable here. - "find . -type f -exec chmod a+rx {} \\;", - "find . -type d -exec chmod a+rx {} \\;", - "%s %s --posix_server_binary %s --testbench_binary %s $@\n" % ( - test_runner.short_path, - " ".join(ctx.attr.flags), - ctx.files._posix_server_binary[0].short_path, - ctx.files.testbench_binary[0].short_path, - ), - ]) - ctx.actions.write(bench, bench_content, is_executable = True) - - transitive_files = depset() - if hasattr(ctx.attr._test_runner, "data_runfiles"): - transitive_files = depset(ctx.attr._test_runner.data_runfiles.files) - runfiles = ctx.runfiles( - files = [test_runner] + ctx.files.testbench_binary + ctx.files._posix_server_binary, - transitive_files = transitive_files, - collect_default = True, - collect_data = True, - ) - return [DefaultInfo(executable = bench, runfiles = runfiles)] - -_packetimpact_test = rule( - attrs = { - "_test_runner": attr.label( - executable = True, - cfg = "target", - default = ":test_runner", - ), - "_posix_server_binary": attr.label( - cfg = "target", - default = "//test/packetimpact/dut:posix_server", - ), - "testbench_binary": attr.label( - cfg = "target", - mandatory = True, - ), - "flags": attr.string_list( - mandatory = False, - default = [], - ), - }, - test = True, - implementation = _packetimpact_test_impl, -) - -PACKETIMPACT_TAGS = ["local", "manual"] - -def packetimpact_linux_test(name, testbench_binary, **kwargs): - """Add a packetimpact test on linux. - - Args: - name: name of the test - testbench_binary: the testbench binary - **kwargs: all the other args, forwarded to _packetimpact_test - """ - _packetimpact_test( - name = name + "_linux_test", - testbench_binary = testbench_binary, - flags = ["--dut_platform", "linux"], - tags = PACKETIMPACT_TAGS + ["packetimpact"], - **kwargs - ) - -def packetimpact_netstack_test(name, testbench_binary, **kwargs): - """Add a packetimpact test on netstack. - - Args: - name: name of the test - testbench_binary: the testbench binary - **kwargs: all the other args, forwarded to _packetimpact_test - """ - _packetimpact_test( - name = name + "_netstack_test", - testbench_binary = testbench_binary, - # This is the default runtime unless - # "--test_arg=--runtime=OTHER_RUNTIME" is used to override the value. - flags = ["--dut_platform", "netstack", "--runtime=runsc-d"], - tags = PACKETIMPACT_TAGS + ["packetimpact"], - **kwargs - ) - -def packetimpact_go_test(name, size = "small", pure = True, linux = True, netstack = True, **kwargs): - """Add packetimpact tests written in go. - - Args: - name: name of the test - size: size of the test - pure: make a static go binary - linux: generate a linux test - netstack: generate a netstack test - **kwargs: all the other args, forwarded to go_test - """ - testbench_binary = name + "_test" - go_test( - name = testbench_binary, - size = size, - pure = pure, - tags = PACKETIMPACT_TAGS, - **kwargs - ) - if linux: - packetimpact_linux_test(name = name, testbench_binary = testbench_binary) - if netstack: - packetimpact_netstack_test(name = name, testbench_binary = testbench_binary) diff --git a/test/packetimpact/tests/fin_wait2_timeout_test.go b/test/packetimpact/tests/fin_wait2_timeout_test.go deleted file mode 100644 index 90e16ef65..000000000 --- a/test/packetimpact/tests/fin_wait2_timeout_test.go +++ /dev/null @@ -1,68 +0,0 @@ -// 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 fin_wait2_timeout_test - -import ( - "testing" - "time" - - "golang.org/x/sys/unix" - "gvisor.dev/gvisor/pkg/tcpip/header" - tb "gvisor.dev/gvisor/test/packetimpact/testbench" -) - -func TestFinWait2Timeout(t *testing.T) { - for _, tt := range []struct { - description string - linger2 bool - }{ - {"WithLinger2", true}, - {"WithoutLinger2", false}, - } { - t.Run(tt.description, func(t *testing.T) { - dut := tb.NewDUT(t) - defer dut.TearDown() - listenFd, remotePort := dut.CreateListener(unix.SOCK_STREAM, unix.IPPROTO_TCP, 1) - defer dut.Close(listenFd) - conn := tb.NewTCPIPv4(t, tb.TCP{DstPort: &remotePort}, tb.TCP{SrcPort: &remotePort}) - defer conn.Close() - conn.Handshake() - - acceptFd, _ := dut.Accept(listenFd) - if tt.linger2 { - tv := unix.Timeval{Sec: 1, Usec: 0} - dut.SetSockOptTimeval(acceptFd, unix.SOL_TCP, unix.TCP_LINGER2, &tv) - } - dut.Close(acceptFd) - - if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagFin | header.TCPFlagAck)}, time.Second); err != nil { - t.Fatalf("expected a FIN-ACK within 1 second but got none: %s", err) - } - conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)}) - - time.Sleep(5 * time.Second) - conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)}) - if tt.linger2 { - if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagRst)}, time.Second); err != nil { - t.Fatalf("expected a RST packet within a second but got none: %s", err) - } - } else { - if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagRst)}, 10*time.Second); err == nil { - t.Fatalf("expected no RST packets within ten seconds but got one: %s", err) - } - } - }) - } -} diff --git a/test/packetimpact/tests/tcp_window_shrink_test.go b/test/packetimpact/tests/tcp_window_shrink_test.go deleted file mode 100644 index b48cc6491..000000000 --- a/test/packetimpact/tests/tcp_window_shrink_test.go +++ /dev/null @@ -1,58 +0,0 @@ -// 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 tcp_window_shrink_test - -import ( - "testing" - "time" - - "golang.org/x/sys/unix" - "gvisor.dev/gvisor/pkg/tcpip/header" - tb "gvisor.dev/gvisor/test/packetimpact/testbench" -) - -func TestWindowShrink(t *testing.T) { - dut := tb.NewDUT(t) - defer dut.TearDown() - listenFd, remotePort := dut.CreateListener(unix.SOCK_STREAM, unix.IPPROTO_TCP, 1) - defer dut.Close(listenFd) - conn := tb.NewTCPIPv4(t, tb.TCP{DstPort: &remotePort}, tb.TCP{SrcPort: &remotePort}) - defer conn.Close() - - conn.Handshake() - acceptFd, _ := dut.Accept(listenFd) - defer dut.Close(acceptFd) - - dut.SetSockOptInt(acceptFd, unix.IPPROTO_TCP, unix.TCP_NODELAY, 1) - - sampleData := []byte("Sample Data") - - dut.Send(acceptFd, sampleData, 0) - conn.ExpectData(tb.TCP{}, sampleData, time.Second) - conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)}) - - dut.Send(acceptFd, sampleData, 0) - dut.Send(acceptFd, sampleData, 0) - conn.ExpectData(tb.TCP{}, sampleData, time.Second) - conn.ExpectData(tb.TCP{}, sampleData, time.Second) - // We close our receiving window here - conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck), WindowSize: tb.Uint16(0)}) - - dut.Send(acceptFd, []byte("Sample Data"), 0) - // Note: There is another kind of zero-window probing which Windows uses (by sending one - // new byte at `RemoteSeqNum`), if netstack wants to go that way, we may want to change - // the following lines. - conn.ExpectData(tb.TCP{SeqNum: tb.Uint32(uint32(conn.RemoteSeqNum - 1))}, nil, time.Second) -} diff --git a/test/packetimpact/tests/test_runner.sh b/test/packetimpact/tests/test_runner.sh deleted file mode 100755 index e99fc7d09..000000000 --- a/test/packetimpact/tests/test_runner.sh +++ /dev/null @@ -1,268 +0,0 @@ -#!/bin/bash - -# 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. - -# Run a packetimpact test. Two docker containers are made, one for the -# Device-Under-Test (DUT) and one for the test bench. Each is attached with -# two networks, one for control packets that aid the test and one for test -# packets which are sent as part of the test and observed for correctness. - -set -euxo pipefail - -function failure() { - local lineno=$1 - local msg=$2 - local filename="$0" - echo "FAIL: $filename:$lineno: $msg" -} -trap 'failure ${LINENO} "$BASH_COMMAND"' ERR - -declare -r LONGOPTS="dut_platform:,posix_server_binary:,testbench_binary:,runtime:,tshark,extra_test_arg:" - -# Don't use declare below so that the error from getopt will end the script. -PARSED=$(getopt --options "" --longoptions=$LONGOPTS --name "$0" -- "$@") - -eval set -- "$PARSED" - -declare -a EXTRA_TEST_ARGS - -while true; do - case "$1" in - --dut_platform) - # Either "linux" or "netstack". - declare -r DUT_PLATFORM="$2" - shift 2 - ;; - --posix_server_binary) - declare -r POSIX_SERVER_BINARY="$2" - shift 2 - ;; - --testbench_binary) - declare -r TESTBENCH_BINARY="$2" - shift 2 - ;; - --runtime) - # Not readonly because there might be multiple --runtime arguments and we - # want to use just the last one. Only used if --dut_platform is - # "netstack". - declare RUNTIME="$2" - shift 2 - ;; - --tshark) - declare -r TSHARK="1" - shift 1 - ;; - --extra_test_arg) - EXTRA_TEST_ARGS+="$2" - shift 2 - ;; - --) - shift - break - ;; - *) - echo "Programming error" - exit 3 - esac -done - -# All the other arguments are scripts. -declare -r scripts="$@" - -# Check that the required flags are defined in a way that is safe for "set -u". -if [[ "${DUT_PLATFORM-}" == "netstack" ]]; then - if [[ -z "${RUNTIME-}" ]]; then - echo "FAIL: Missing --runtime argument: ${RUNTIME-}" - exit 2 - fi - declare -r RUNTIME_ARG="--runtime ${RUNTIME}" -elif [[ "${DUT_PLATFORM-}" == "linux" ]]; then - declare -r RUNTIME_ARG="" -else - echo "FAIL: Bad or missing --dut_platform argument: ${DUT_PLATFORM-}" - exit 2 -fi -if [[ ! -f "${POSIX_SERVER_BINARY-}" ]]; then - echo "FAIL: Bad or missing --posix_server_binary: ${POSIX_SERVER-}" - exit 2 -fi -if [[ ! -f "${TESTBENCH_BINARY-}" ]]; then - echo "FAIL: Bad or missing --testbench_binary: ${TESTBENCH_BINARY-}" - exit 2 -fi - -# Variables specific to the control network and interface start with CTRL_. -# Variables specific to the test network and interface start with TEST_. -# Variables specific to the DUT start with DUT_. -# Variables specific to the test bench start with TESTBENCH_. -# Use random numbers so that test networks don't collide. -declare -r CTRL_NET="ctrl_net-${RANDOM}${RANDOM}" -declare -r TEST_NET="test_net-${RANDOM}${RANDOM}" -# On both DUT and test bench, testing packets are on the eth2 interface. -declare -r TEST_DEVICE="eth2" -# Number of bits in the *_NET_PREFIX variables. -declare -r NET_MASK="24" -function new_net_prefix() { - # Class C, 192.0.0.0 to 223.255.255.255, transitionally has mask 24. - echo "$(shuf -i 192-223 -n 1).$(shuf -i 0-255 -n 1).$(shuf -i 0-255 -n 1)" -} -# Last bits of the DUT's IP address. -declare -r DUT_NET_SUFFIX=".10" -# Control port. -declare -r CTRL_PORT="40000" -# Last bits of the test bench's IP address. -declare -r TESTBENCH_NET_SUFFIX=".20" -declare -r TIMEOUT="60" -declare -r IMAGE_TAG="gcr.io/gvisor-presubmit/packetimpact" -# Make sure that docker is installed. -docker --version - -function finish { - local cleanup_success=1 - - if [[ -z "${TSHARK-}" ]]; then - # Kill tcpdump so that it will flush output. - docker exec -t "${TESTBENCH}" \ - killall tcpdump || \ - cleanup_success=0 - else - # Kill tshark so that it will flush output. - docker exec -t "${TESTBENCH}" \ - killall tshark || \ - cleanup_success=0 - fi - - for net in "${CTRL_NET}" "${TEST_NET}"; do - # Kill all processes attached to ${net}. - for docker_command in "kill" "rm"; do - (docker network inspect "${net}" \ - --format '{{range $key, $value := .Containers}}{{$key}} {{end}}' \ - | xargs -r docker "${docker_command}") || \ - cleanup_success=0 - done - # Remove the network. - docker network rm "${net}" || \ - cleanup_success=0 - done - - if ((!$cleanup_success)); then - echo "FAIL: Cleanup command failed" - exit 4 - fi -} -trap finish EXIT - -# Subnet for control packets between test bench and DUT. -declare CTRL_NET_PREFIX=$(new_net_prefix) -while ! docker network create \ - "--subnet=${CTRL_NET_PREFIX}.0/${NET_MASK}" "${CTRL_NET}"; do - sleep 0.1 - declare CTRL_NET_PREFIX=$(new_net_prefix) -done - -# Subnet for the packets that are part of the test. -declare TEST_NET_PREFIX=$(new_net_prefix) -while ! docker network create \ - "--subnet=${TEST_NET_PREFIX}.0/${NET_MASK}" "${TEST_NET}"; do - sleep 0.1 - declare TEST_NET_PREFIX=$(new_net_prefix) -done - -docker pull "${IMAGE_TAG}" - -# Create the DUT container and connect to network. -DUT=$(docker create ${RUNTIME_ARG} --privileged --rm \ - --stop-timeout ${TIMEOUT} -it ${IMAGE_TAG}) -docker network connect "${CTRL_NET}" \ - --ip "${CTRL_NET_PREFIX}${DUT_NET_SUFFIX}" "${DUT}" \ - || (docker kill ${DUT}; docker rm ${DUT}; false) -docker network connect "${TEST_NET}" \ - --ip "${TEST_NET_PREFIX}${DUT_NET_SUFFIX}" "${DUT}" \ - || (docker kill ${DUT}; docker rm ${DUT}; false) -docker start "${DUT}" - -# Create the test bench container and connect to network. -TESTBENCH=$(docker create --privileged --rm \ - --stop-timeout ${TIMEOUT} -it ${IMAGE_TAG}) -docker network connect "${CTRL_NET}" \ - --ip "${CTRL_NET_PREFIX}${TESTBENCH_NET_SUFFIX}" "${TESTBENCH}" \ - || (docker kill ${TESTBENCH}; docker rm ${TESTBENCH}; false) -docker network connect "${TEST_NET}" \ - --ip "${TEST_NET_PREFIX}${TESTBENCH_NET_SUFFIX}" "${TESTBENCH}" \ - || (docker kill ${TESTBENCH}; docker rm ${TESTBENCH}; false) -docker start "${TESTBENCH}" - -# Start the posix_server in the DUT. -declare -r DOCKER_POSIX_SERVER_BINARY="/$(basename ${POSIX_SERVER_BINARY})" -docker cp -L ${POSIX_SERVER_BINARY} "${DUT}:${DOCKER_POSIX_SERVER_BINARY}" - -docker exec -t "${DUT}" \ - /bin/bash -c "${DOCKER_POSIX_SERVER_BINARY} \ - --ip ${CTRL_NET_PREFIX}${DUT_NET_SUFFIX} \ - --port ${CTRL_PORT}" & - -# Because the Linux kernel receives the SYN-ACK but didn't send the SYN it will -# issue a RST. To prevent this IPtables can be used to filter those out. -docker exec "${TESTBENCH}" \ - iptables -A INPUT -i ${TEST_DEVICE} -j DROP - -# Wait for the DUT server to come up. Attempt to connect to it from the test -# bench every 100 milliseconds until success. -while ! docker exec "${TESTBENCH}" \ - nc -zv "${CTRL_NET_PREFIX}${DUT_NET_SUFFIX}" "${CTRL_PORT}"; do - sleep 0.1 -done - -declare -r REMOTE_MAC=$(docker exec -t "${DUT}" ip link show \ - "${TEST_DEVICE}" | tail -1 | cut -d' ' -f6) -declare -r LOCAL_MAC=$(docker exec -t "${TESTBENCH}" ip link show \ - "${TEST_DEVICE}" | tail -1 | cut -d' ' -f6) - -declare -r DOCKER_TESTBENCH_BINARY="/$(basename ${TESTBENCH_BINARY})" -docker cp -L "${TESTBENCH_BINARY}" "${TESTBENCH}:${DOCKER_TESTBENCH_BINARY}" - -if [[ -z "${TSHARK-}" ]]; then - # Run tcpdump in the test bench unbuffered, without dns resolution, just on - # the interface with the test packets. - docker exec -t "${TESTBENCH}" \ - tcpdump -S -vvv -U -n -i "${TEST_DEVICE}" net "${TEST_NET_PREFIX}/24" & -else - # Run tshark in the test bench unbuffered, without dns resolution, just on the - # interface with the test packets. - docker exec -t "${TESTBENCH}" \ - tshark -V -l -n -i "${TEST_DEVICE}" \ - -o tcp.check_checksum:TRUE \ - -o udp.check_checksum:TRUE \ - host "${TEST_NET_PREFIX}${TESTBENCH_NET_SUFFIX}" & -fi - -# tcpdump and tshark take time to startup -sleep 3 - -# Start a packetimpact test on the test bench. The packetimpact test sends and -# receives packets and also sends POSIX socket commands to the posix_server to -# be executed on the DUT. -docker exec -t "${TESTBENCH}" \ - /bin/bash -c "${DOCKER_TESTBENCH_BINARY} \ - ${EXTRA_TEST_ARGS[@]-} \ - --posix_server_ip=${CTRL_NET_PREFIX}${DUT_NET_SUFFIX} \ - --posix_server_port=${CTRL_PORT} \ - --remote_ipv4=${TEST_NET_PREFIX}${DUT_NET_SUFFIX} \ - --local_ipv4=${TEST_NET_PREFIX}${TESTBENCH_NET_SUFFIX} \ - --remote_mac=${REMOTE_MAC} \ - --local_mac=${LOCAL_MAC} \ - --device=${TEST_DEVICE}" - -echo PASS: No errors. diff --git a/test/packetimpact/tests/udp_recv_multicast_test.go b/test/packetimpact/tests/udp_recv_multicast_test.go deleted file mode 100644 index bc1b0be49..000000000 --- a/test/packetimpact/tests/udp_recv_multicast_test.go +++ /dev/null @@ -1,37 +0,0 @@ -// 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_recv_multicast_test - -import ( - "net" - "testing" - - "golang.org/x/sys/unix" - "gvisor.dev/gvisor/pkg/tcpip" - tb "gvisor.dev/gvisor/test/packetimpact/testbench" -) - -func TestUDPRecvMulticast(t *testing.T) { - dut := tb.NewDUT(t) - defer dut.TearDown() - boundFD, remotePort := dut.CreateBoundSocket(unix.SOCK_DGRAM, unix.IPPROTO_UDP, net.ParseIP("0.0.0.0")) - defer dut.Close(boundFD) - conn := tb.NewUDPIPv4(t, tb.UDP{DstPort: &remotePort}, tb.UDP{SrcPort: &remotePort}) - defer conn.Close() - frame := conn.CreateFrame(tb.UDP{}, &tb.Payload{Bytes: []byte("hello world")}) - frame[1].(*tb.IPv4).DstAddr = tb.Address(tcpip.Address(net.ParseIP("224.0.0.1").To4())) - conn.SendFrame(frame) - dut.Recv(boundFD, 100, 0) -} |