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-rw-r--r--test/packetimpact/tests/BUILD102
-rw-r--r--test/packetimpact/tests/defs.bzl137
-rw-r--r--test/packetimpact/tests/fin_wait2_timeout_test.go70
-rw-r--r--test/packetimpact/tests/tcp_close_wait_ack_test.go102
-rw-r--r--test/packetimpact/tests/tcp_noaccept_close_rst_test.go37
-rw-r--r--test/packetimpact/tests/tcp_outside_the_window_test.go88
-rw-r--r--test/packetimpact/tests/tcp_should_piggyback_test.go59
-rw-r--r--test/packetimpact/tests/tcp_user_timeout_test.go100
-rw-r--r--test/packetimpact/tests/tcp_window_shrink_test.go68
-rwxr-xr-xtest/packetimpact/tests/test_runner.sh288
-rw-r--r--test/packetimpact/tests/udp_recv_multicast_test.go37
11 files changed, 0 insertions, 1088 deletions
diff --git a/test/packetimpact/tests/BUILD b/test/packetimpact/tests/BUILD
deleted file mode 100644
index 47c722ccd..000000000
--- a/test/packetimpact/tests/BUILD
+++ /dev/null
@@ -1,102 +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",
- ],
-)
-
-packetimpact_go_test(
- name = "tcp_outside_the_window",
- srcs = ["tcp_outside_the_window_test.go"],
- deps = [
- "//pkg/tcpip/header",
- "//pkg/tcpip/seqnum",
- "//test/packetimpact/testbench",
- "@org_golang_x_sys//unix:go_default_library",
- ],
-)
-
-packetimpact_go_test(
- name = "tcp_noaccept_close_rst",
- srcs = ["tcp_noaccept_close_rst_test.go"],
- deps = [
- "//pkg/tcpip/header",
- "//test/packetimpact/testbench",
- "@org_golang_x_sys//unix:go_default_library",
- ],
-)
-
-packetimpact_go_test(
- name = "tcp_should_piggyback",
- srcs = ["tcp_should_piggyback_test.go"],
- # TODO(b/153680566): Fix netstack then remove the line below.
- netstack = False,
- deps = [
- "//pkg/tcpip/header",
- "//test/packetimpact/testbench",
- "@org_golang_x_sys//unix:go_default_library",
- ],
-)
-
-packetimpact_go_test(
- name = "tcp_close_wait_ack",
- srcs = ["tcp_close_wait_ack_test.go"],
- # TODO(b/153574037): Fix netstack then remove the line below.
- netstack = False,
- deps = [
- "//pkg/tcpip/header",
- "//pkg/tcpip/seqnum",
- "//test/packetimpact/testbench",
- "@org_golang_x_sys//unix:go_default_library",
- ],
-)
-
-packetimpact_go_test(
- name = "tcp_user_timeout",
- srcs = ["tcp_user_timeout_test.go"],
- 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/defs.bzl b/test/packetimpact/tests/defs.bzl
deleted file mode 100644
index 27c5de375..000000000
--- a/test/packetimpact/tests/defs.bzl
+++ /dev/null
@@ -1,137 +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,
- expect_failure = False,
- **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
- """
- expect_failure_flag = ["--expect_failure"] if expect_failure else []
- _packetimpact_test(
- name = name + "_linux_test",
- testbench_binary = testbench_binary,
- flags = ["--dut_platform", "linux"] + expect_failure_flag,
- tags = PACKETIMPACT_TAGS + ["packetimpact"],
- **kwargs
- )
-
-def packetimpact_netstack_test(
- name,
- testbench_binary,
- expect_failure = False,
- **kwargs):
- """Add a packetimpact test on netstack.
-
- Args:
- name: name of the test
- testbench_binary: the testbench binary
- expect_failure: the test must fail
- **kwargs: all the other args, forwarded to _packetimpact_test
- """
- expect_failure_flag = []
- if expect_failure:
- expect_failure_flag = ["--expect_failure"]
- _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"] + expect_failure_flag,
- 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
- )
- packetimpact_linux_test(
- name = name,
- expect_failure = not linux,
- testbench_binary = testbench_binary,
- )
- packetimpact_netstack_test(
- name = name,
- expect_failure = not netstack,
- 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 99dc77f9a..000000000
--- a/test/packetimpact/tests/fin_wait2_timeout_test.go
+++ /dev/null
@@ -1,70 +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.Drain()
-
- 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 got, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagRst)}, 10*time.Second); got != nil || err == nil {
- t.Fatalf("expected no RST packets within ten seconds but got one: %s", got)
- }
- }
- })
- }
-}
diff --git a/test/packetimpact/tests/tcp_close_wait_ack_test.go b/test/packetimpact/tests/tcp_close_wait_ack_test.go
deleted file mode 100644
index eb4cc7a65..000000000
--- a/test/packetimpact/tests/tcp_close_wait_ack_test.go
+++ /dev/null
@@ -1,102 +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_close_wait_ack_test
-
-import (
- "fmt"
- "testing"
- "time"
-
- "golang.org/x/sys/unix"
- "gvisor.dev/gvisor/pkg/tcpip/header"
- "gvisor.dev/gvisor/pkg/tcpip/seqnum"
- tb "gvisor.dev/gvisor/test/packetimpact/testbench"
-)
-
-func TestCloseWaitAck(t *testing.T) {
- for _, tt := range []struct {
- description string
- makeTestingTCP func(conn *tb.TCPIPv4, seqNumOffset seqnum.Size) tb.TCP
- seqNumOffset seqnum.Size
- expectAck bool
- }{
- {"OTW", GenerateOTWSeqSegment, 0, false},
- {"OTW", GenerateOTWSeqSegment, 1, true},
- {"OTW", GenerateOTWSeqSegment, 2, true},
- {"ACK", GenerateUnaccACKSegment, 0, false},
- {"ACK", GenerateUnaccACKSegment, 1, true},
- {"ACK", GenerateUnaccACKSegment, 2, true},
- } {
- t.Run(fmt.Sprintf("%s%d", tt.description, tt.seqNumOffset), 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)
-
- // Send a FIN to DUT to intiate the active close
- conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck | header.TCPFlagFin)})
- if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)}, time.Second); err != nil {
- t.Fatalf("expected an ACK for our fin and DUT should enter CLOSE_WAIT: %s", err)
- }
-
- // Send a segment with OTW Seq / unacc ACK and expect an ACK back
- conn.Send(tt.makeTestingTCP(&conn, tt.seqNumOffset), &tb.Payload{Bytes: []byte("Sample Data")})
- gotAck, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)}, time.Second)
- if tt.expectAck && err != nil {
- t.Fatalf("expected an ack but got none: %s", err)
- }
- if !tt.expectAck && gotAck != nil {
- t.Fatalf("expected no ack but got one: %s", gotAck)
- }
-
- // Now let's verify DUT is indeed in CLOSE_WAIT
- dut.Close(acceptFd)
- if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck | header.TCPFlagFin)}, time.Second); err != nil {
- t.Fatalf("expected DUT to send a FIN: %s", err)
- }
- // Ack the FIN from DUT
- conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)})
- // Send some extra data to DUT
- conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)}, &tb.Payload{Bytes: []byte("Sample Data")})
- if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagRst)}, time.Second); err != nil {
- t.Fatalf("expected DUT to send an RST: %s", err)
- }
- })
- }
-}
-
-// This generates an segment with seqnum = RCV.NXT + RCV.WND + seqNumOffset, the
-// generated segment is only acceptable when seqNumOffset is 0, otherwise an ACK
-// is expected from the receiver.
-func GenerateOTWSeqSegment(conn *tb.TCPIPv4, seqNumOffset seqnum.Size) tb.TCP {
- windowSize := seqnum.Size(*conn.SynAck().WindowSize)
- lastAcceptable := conn.LocalSeqNum().Add(windowSize - 1)
- otwSeq := uint32(lastAcceptable.Add(seqNumOffset))
- return tb.TCP{SeqNum: tb.Uint32(otwSeq), Flags: tb.Uint8(header.TCPFlagAck)}
-}
-
-// This generates an segment with acknum = SND.NXT + seqNumOffset, the generated
-// segment is only acceptable when seqNumOffset is 0, otherwise an ACK is
-// expected from the receiver.
-func GenerateUnaccACKSegment(conn *tb.TCPIPv4, seqNumOffset seqnum.Size) tb.TCP {
- lastAcceptable := conn.RemoteSeqNum()
- unaccAck := uint32(lastAcceptable.Add(seqNumOffset))
- return tb.TCP{AckNum: tb.Uint32(unaccAck), Flags: tb.Uint8(header.TCPFlagAck)}
-}
diff --git a/test/packetimpact/tests/tcp_noaccept_close_rst_test.go b/test/packetimpact/tests/tcp_noaccept_close_rst_test.go
deleted file mode 100644
index 7ebdd1950..000000000
--- a/test/packetimpact/tests/tcp_noaccept_close_rst_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 tcp_noaccept_close_rst_test
-
-import (
- "testing"
- "time"
-
- "golang.org/x/sys/unix"
- "gvisor.dev/gvisor/pkg/tcpip/header"
- tb "gvisor.dev/gvisor/test/packetimpact/testbench"
-)
-
-func TestTcpNoAcceptCloseReset(t *testing.T) {
- dut := tb.NewDUT(t)
- defer dut.TearDown()
- listenFd, remotePort := dut.CreateListener(unix.SOCK_STREAM, unix.IPPROTO_TCP, 1)
- conn := tb.NewTCPIPv4(t, tb.TCP{DstPort: &remotePort}, tb.TCP{SrcPort: &remotePort})
- conn.Handshake()
- defer conn.Close()
- dut.Close(listenFd)
- if _, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagRst | header.TCPFlagAck)}, 1*time.Second); err != nil {
- t.Fatalf("expected a RST-ACK packet but got none: %s", err)
- }
-}
diff --git a/test/packetimpact/tests/tcp_outside_the_window_test.go b/test/packetimpact/tests/tcp_outside_the_window_test.go
deleted file mode 100644
index db3d3273b..000000000
--- a/test/packetimpact/tests/tcp_outside_the_window_test.go
+++ /dev/null
@@ -1,88 +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_outside_the_window_test
-
-import (
- "fmt"
- "testing"
- "time"
-
- "golang.org/x/sys/unix"
- "gvisor.dev/gvisor/pkg/tcpip/header"
- "gvisor.dev/gvisor/pkg/tcpip/seqnum"
- tb "gvisor.dev/gvisor/test/packetimpact/testbench"
-)
-
-// TestTCPOutsideTheWindows tests the behavior of the DUT when packets arrive
-// that are inside or outside the TCP window. Packets that are outside the
-// window should force an extra ACK, as described in RFC793 page 69:
-// https://tools.ietf.org/html/rfc793#page-69
-func TestTCPOutsideTheWindow(t *testing.T) {
- for _, tt := range []struct {
- description string
- tcpFlags uint8
- payload []tb.Layer
- seqNumOffset seqnum.Size
- expectACK bool
- }{
- {"SYN", header.TCPFlagSyn, nil, 0, true},
- {"SYNACK", header.TCPFlagSyn | header.TCPFlagAck, nil, 0, true},
- {"ACK", header.TCPFlagAck, nil, 0, false},
- {"FIN", header.TCPFlagFin, nil, 0, false},
- {"Data", header.TCPFlagAck, []tb.Layer{&tb.Payload{Bytes: []byte("abc123")}}, 0, true},
-
- {"SYN", header.TCPFlagSyn, nil, 1, true},
- {"SYNACK", header.TCPFlagSyn | header.TCPFlagAck, nil, 1, true},
- {"ACK", header.TCPFlagAck, nil, 1, true},
- {"FIN", header.TCPFlagFin, nil, 1, false},
- {"Data", header.TCPFlagAck, []tb.Layer{&tb.Payload{Bytes: []byte("abc123")}}, 1, true},
-
- {"SYN", header.TCPFlagSyn, nil, 2, true},
- {"SYNACK", header.TCPFlagSyn | header.TCPFlagAck, nil, 2, true},
- {"ACK", header.TCPFlagAck, nil, 2, true},
- {"FIN", header.TCPFlagFin, nil, 2, false},
- {"Data", header.TCPFlagAck, []tb.Layer{&tb.Payload{Bytes: []byte("abc123")}}, 2, true},
- } {
- t.Run(fmt.Sprintf("%s%d", tt.description, tt.seqNumOffset), 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)
- defer dut.Close(acceptFD)
-
- windowSize := seqnum.Size(*conn.SynAck().WindowSize) + tt.seqNumOffset
- conn.Drain()
- // Ignore whatever incrementing that this out-of-order packet might cause
- // to the AckNum.
- localSeqNum := tb.Uint32(uint32(*conn.LocalSeqNum()))
- conn.Send(tb.TCP{
- Flags: tb.Uint8(tt.tcpFlags),
- SeqNum: tb.Uint32(uint32(conn.LocalSeqNum().Add(windowSize))),
- }, tt.payload...)
- timeout := 3 * time.Second
- gotACK, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck), AckNum: localSeqNum}, timeout)
- if tt.expectACK && err != nil {
- t.Fatalf("expected an ACK packet within %s but got none: %s", timeout, err)
- }
- if !tt.expectACK && gotACK != nil {
- t.Fatalf("expected no ACK packet within %s but got one: %s", timeout, gotACK)
- }
- })
- }
-}
diff --git a/test/packetimpact/tests/tcp_should_piggyback_test.go b/test/packetimpact/tests/tcp_should_piggyback_test.go
deleted file mode 100644
index b0be6ba23..000000000
--- a/test/packetimpact/tests/tcp_should_piggyback_test.go
+++ /dev/null
@@ -1,59 +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_should_piggyback_test
-
-import (
- "testing"
- "time"
-
- "golang.org/x/sys/unix"
- "gvisor.dev/gvisor/pkg/tcpip/header"
- tb "gvisor.dev/gvisor/test/packetimpact/testbench"
-)
-
-func TestPiggyback(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, WindowSize: tb.Uint16(12)}, 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)
- expectedTCP := tb.TCP{Flags: tb.Uint8(header.TCPFlagAck | header.TCPFlagPsh)}
- expectedPayload := tb.Payload{Bytes: sampleData}
- if _, err := conn.ExpectData(&expectedTCP, &expectedPayload, time.Second); err != nil {
- t.Fatalf("Expected %v but didn't get one: %s", tb.Layers{&expectedTCP, &expectedPayload}, err)
- }
-
- // Cause DUT to send us more data as soon as we ACK their first data segment because we have
- // a small window.
- dut.Send(acceptFd, sampleData, 0)
-
- // DUT should ACK our segment by piggybacking ACK to their outstanding data segment instead of
- // sending a separate ACK packet.
- conn.Send(expectedTCP, &expectedPayload)
- if _, err := conn.ExpectData(&expectedTCP, &expectedPayload, time.Second); err != nil {
- t.Fatalf("Expected %v but didn't get one: %s", tb.Layers{&expectedTCP, &expectedPayload}, err)
- }
-}
diff --git a/test/packetimpact/tests/tcp_user_timeout_test.go b/test/packetimpact/tests/tcp_user_timeout_test.go
deleted file mode 100644
index 3cf82badb..000000000
--- a/test/packetimpact/tests/tcp_user_timeout_test.go
+++ /dev/null
@@ -1,100 +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_user_timeout_test
-
-import (
- "fmt"
- "testing"
- "time"
-
- "golang.org/x/sys/unix"
- "gvisor.dev/gvisor/pkg/tcpip/header"
- tb "gvisor.dev/gvisor/test/packetimpact/testbench"
-)
-
-func sendPayload(conn *tb.TCPIPv4, dut *tb.DUT, fd int32) error {
- sampleData := make([]byte, 100)
- for i := range sampleData {
- sampleData[i] = uint8(i)
- }
- conn.Drain()
- dut.Send(fd, sampleData, 0)
- if _, err := conn.ExpectData(&tb.TCP{Flags: tb.Uint8(header.TCPFlagAck | header.TCPFlagPsh)}, &tb.Payload{Bytes: sampleData}, time.Second); err != nil {
- return fmt.Errorf("expected data but got none: %w", err)
- }
- return nil
-}
-
-func sendFIN(conn *tb.TCPIPv4, dut *tb.DUT, fd int32) error {
- dut.Close(fd)
- return nil
-}
-
-func TestTCPUserTimeout(t *testing.T) {
- for _, tt := range []struct {
- description string
- userTimeout time.Duration
- sendDelay time.Duration
- }{
- {"NoUserTimeout", 0, 3 * time.Second},
- {"ACKBeforeUserTimeout", 5 * time.Second, 4 * time.Second},
- {"ACKAfterUserTimeout", 5 * time.Second, 7 * time.Second},
- } {
- for _, ttf := range []struct {
- description string
- f func(conn *tb.TCPIPv4, dut *tb.DUT, fd int32) error
- }{
- {"AfterPayload", sendPayload},
- {"AfterFIN", sendFIN},
- } {
- t.Run(tt.description+ttf.description, func(t *testing.T) {
- // Create a socket, listen, TCP handshake, and accept.
- 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.userTimeout != 0 {
- dut.SetSockOptInt(acceptFD, unix.SOL_TCP, unix.TCP_USER_TIMEOUT, int32(tt.userTimeout.Milliseconds()))
- }
-
- if err := ttf.f(&conn, &dut, acceptFD); err != nil {
- t.Fatal(err)
- }
-
- time.Sleep(tt.sendDelay)
- conn.Drain()
- conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)})
-
- // If TCP_USER_TIMEOUT was set and the above delay was longer than the
- // TCP_USER_TIMEOUT then the DUT should send a RST in response to the
- // testbench's packet.
- expectRST := tt.userTimeout != 0 && tt.sendDelay > tt.userTimeout
- expectTimeout := 5 * time.Second
- got, err := conn.Expect(tb.TCP{Flags: tb.Uint8(header.TCPFlagRst)}, expectTimeout)
- if expectRST && err != nil {
- t.Errorf("expected RST packet within %s but got none: %s", expectTimeout, err)
- }
- if !expectRST && got != nil {
- t.Errorf("expected no RST packet within %s but got one: %s", expectTimeout, got)
- }
- })
- }
- }
-}
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 c9354074e..000000000
--- a/test/packetimpact/tests/tcp_window_shrink_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 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")
- samplePayload := &tb.Payload{Bytes: sampleData}
-
- dut.Send(acceptFd, sampleData, 0)
- if _, err := conn.ExpectData(&tb.TCP{}, samplePayload, time.Second); err != nil {
- t.Fatalf("expected a packet with payload %v: %s", samplePayload, err)
- }
- conn.Send(tb.TCP{Flags: tb.Uint8(header.TCPFlagAck)})
-
- dut.Send(acceptFd, sampleData, 0)
- dut.Send(acceptFd, sampleData, 0)
- if _, err := conn.ExpectData(&tb.TCP{}, samplePayload, time.Second); err != nil {
- t.Fatalf("expected a packet with payload %v: %s", samplePayload, err)
- }
- if _, err := conn.ExpectData(&tb.TCP{}, samplePayload, time.Second); err != nil {
- t.Fatalf("expected a packet with payload %v: %s", samplePayload, err)
- }
- // 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.
- expectedRemoteSeqNum := *conn.RemoteSeqNum() - 1
- if _, err := conn.ExpectData(&tb.TCP{SeqNum: tb.Uint32(uint32(expectedRemoteSeqNum))}, nil, time.Second); err != nil {
- t.Fatalf("expected a packet with sequence number %v: %s", expectedRemoteSeqNum, err)
- }
-}
diff --git a/test/packetimpact/tests/test_runner.sh b/test/packetimpact/tests/test_runner.sh
deleted file mode 100755
index e938de782..000000000
--- a/test/packetimpact/tests/test_runner.sh
+++ /dev/null
@@ -1,288 +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:,expect_failure"
-
-# 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+="$2"
- shift 2
- ;;
- --expect_failure)
- declare -r EXPECT_FAILURE="1"
- shift 1
- ;;
- --)
- shift
- break
- ;;
- *)
- echo "Programming error"
- exit 3
- esac
-done
-
-# All the other arguments are scripts.
-declare -r scripts="$@"
-
-# 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: ${TESTBENCH_BINARY-}"
- exit 2
-fi
-
-function new_net_prefix() {
- # Class C, 192.0.0.0 to 223.255.255.255, transitionally has mask 24.
- echo "$(shuf -i 192-223 -n 1).$(shuf -i 0-255 -n 1).$(shuf -i 0-255 -n 1)"
-}
-
-# 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 CTRL_NET="ctrl_net-${RANDOM}${RANDOM}"
-declare CTRL_NET_PREFIX=$(new_net_prefix)
-declare TEST_NET="test_net-${RANDOM}${RANDOM}"
-declare TEST_NET_PREFIX=$(new_net_prefix)
-# 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"
-# 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 ((!$cleanup_success)); then
- echo "FAIL: Cleanup command failed"
- exit 4
- fi
-}
-trap finish EXIT
-
-# Subnet for control packets between test bench and DUT.
-while ! docker network create \
- "--subnet=${CTRL_NET_PREFIX}.0/${NET_MASK}" "${CTRL_NET}"; do
- sleep 0.1
- CTRL_NET_PREFIX=$(new_net_prefix)
- CTRL_NET="ctrl_net-${RANDOM}${RANDOM}"
-done
-
-# Subnet for the packets that are part of the test.
-while ! docker network create \
- "--subnet=${TEST_NET_PREFIX}.0/${NET_MASK}" "${TEST_NET}"; do
- sleep 0.1
- TEST_NET_PREFIX=$(new_net_prefix)
- TEST_NET="test_net-${RANDOM}${RANDOM}"
-done
-
-docker pull "${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 \
- -e XML_OUTPUT_FILE="/test.xml" \
- -e TEST_TARGET \
- -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=${TEST_DEVICE}" && true
-declare -r TEST_RESULT="${?}"
-if [[ -z "${EXPECT_FAILURE-}" && "${TEST_RESULT}" != 0 ]]; then
- echo 'FAIL: This test was expected to pass.'
- exit ${TEST_RESULT}
-fi
-if [[ ! -z "${EXPECT_FAILURE-}" && "${TEST_RESULT}" == 0 ]]; then
- echo 'FAIL: This test was expected to fail but passed. Enable the test and' \
- 'mark the corresponding bug as fixed.'
- exit 1
-fi
-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 61fd17050..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)
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 16:43:21 +0000