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-rw-r--r--test/packetimpact/tests/BUILD22
-rw-r--r--test/packetimpact/tests/tcp_outside_the_window_closing_test.go86
-rw-r--r--test/packetimpact/tests/tcp_outside_the_window_test.go72
-rw-r--r--test/packetimpact/tests/tcp_unacc_seq_ack_closing_test.go94
-rw-r--r--test/packetimpact/tests/tcp_unacc_seq_ack_test.go63
5 files changed, 135 insertions, 202 deletions
diff --git a/test/packetimpact/tests/BUILD b/test/packetimpact/tests/BUILD
index d5cb0ae06..c0deb33e5 100644
--- a/test/packetimpact/tests/BUILD
+++ b/test/packetimpact/tests/BUILD
@@ -124,17 +124,6 @@ packetimpact_testbench(
)
packetimpact_testbench(
- name = "tcp_outside_the_window_closing",
- srcs = ["tcp_outside_the_window_closing_test.go"],
- deps = [
- "//pkg/tcpip/header",
- "//pkg/tcpip/seqnum",
- "//test/packetimpact/testbench",
- "@org_golang_x_sys//unix:go_default_library",
- ],
-)
-
-packetimpact_testbench(
name = "tcp_noaccept_close_rst",
srcs = ["tcp_noaccept_close_rst_test.go"],
deps = [
@@ -166,17 +155,6 @@ packetimpact_testbench(
)
packetimpact_testbench(
- name = "tcp_unacc_seq_ack_closing",
- srcs = ["tcp_unacc_seq_ack_closing_test.go"],
- deps = [
- "//pkg/tcpip/header",
- "//pkg/tcpip/seqnum",
- "//test/packetimpact/testbench",
- "@org_golang_x_sys//unix:go_default_library",
- ],
-)
-
-packetimpact_testbench(
name = "tcp_paws_mechanism",
srcs = ["tcp_paws_mechanism_test.go"],
deps = [
diff --git a/test/packetimpact/tests/tcp_outside_the_window_closing_test.go b/test/packetimpact/tests/tcp_outside_the_window_closing_test.go
deleted file mode 100644
index 1097746c7..000000000
--- a/test/packetimpact/tests/tcp_outside_the_window_closing_test.go
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright 2021 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_closing_test
-
-import (
- "flag"
- "fmt"
- "testing"
- "time"
-
- "golang.org/x/sys/unix"
- "gvisor.dev/gvisor/pkg/tcpip/header"
- "gvisor.dev/gvisor/pkg/tcpip/seqnum"
- "gvisor.dev/gvisor/test/packetimpact/testbench"
-)
-
-func init() {
- testbench.Initialize(flag.CommandLine)
-}
-
-// TestAckOTWSeqInClosing tests that the DUT should send an ACK with
-// the right ACK number when receiving a packet with OTW Seq number
-// in CLOSING state. https://tools.ietf.org/html/rfc793#page-69
-func TestAckOTWSeqInClosing(t *testing.T) {
- for seqNumOffset := seqnum.Size(0); seqNumOffset < 3; seqNumOffset++ {
- for _, tt := range []struct {
- description string
- flags header.TCPFlags
- payloads testbench.Layers
- }{
- {"SYN", header.TCPFlagSyn, nil},
- {"SYNACK", header.TCPFlagSyn | header.TCPFlagAck, nil},
- {"ACK", header.TCPFlagAck, nil},
- {"FINACK", header.TCPFlagFin | header.TCPFlagAck, nil},
- {"Data", header.TCPFlagAck, []testbench.Layer{&testbench.Payload{Bytes: []byte("abc123")}}},
- } {
- t.Run(fmt.Sprintf("%s%d", tt.description, seqNumOffset), func(t *testing.T) {
- dut := testbench.NewDUT(t)
- listenFD, remotePort := dut.CreateListener(t, unix.SOCK_STREAM, unix.IPPROTO_TCP, 1)
- defer dut.Close(t, listenFD)
- conn := dut.Net.NewTCPIPv4(t, testbench.TCP{DstPort: &remotePort}, testbench.TCP{SrcPort: &remotePort})
- defer conn.Close(t)
- conn.Connect(t)
- acceptFD, _ := dut.Accept(t, listenFD)
- defer dut.Close(t, acceptFD)
-
- dut.Shutdown(t, acceptFD, unix.SHUT_WR)
-
- if _, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagFin | header.TCPFlagAck)}, time.Second); err != nil {
- t.Fatalf("expected FINACK from DUT, but got none: %s", err)
- }
-
- // Do not ack the FIN from DUT so that the TCP state on DUT is CLOSING instead of CLOSED.
- seqNumForTheirFIN := testbench.Uint32(uint32(*conn.RemoteSeqNum(t)) - 1)
- conn.Send(t, testbench.TCP{AckNum: seqNumForTheirFIN, Flags: testbench.TCPFlags(header.TCPFlagFin | header.TCPFlagAck)})
-
- if _, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagAck)}, time.Second); err != nil {
- t.Errorf("expected an ACK to our FIN, but got none: %s", err)
- }
-
- windowSize := seqnum.Size(*conn.SynAck(t).WindowSize) + seqNumOffset
- conn.SendFrameStateless(t, conn.CreateFrame(t, testbench.Layers{&testbench.TCP{
- SeqNum: testbench.Uint32(uint32(conn.LocalSeqNum(t).Add(windowSize))),
- AckNum: seqNumForTheirFIN,
- Flags: testbench.TCPFlags(tt.flags),
- }}, tt.payloads...))
-
- if _, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagAck)}, time.Second); err != nil {
- t.Errorf("expected an ACK 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
index 7cd7ff703..0523887d9 100644
--- a/test/packetimpact/tests/tcp_outside_the_window_test.go
+++ b/test/packetimpact/tests/tcp_outside_the_window_test.go
@@ -108,3 +108,75 @@ func TestTCPOutsideTheWindow(t *testing.T) {
})
}
}
+
+// TestAckOTWSeqInClosing tests that the DUT should send an ACK with
+// the right ACK number when receiving a packet with OTW Seq number
+// in CLOSING state. https://tools.ietf.org/html/rfc793#page-69
+func TestAckOTWSeqInClosing(t *testing.T) {
+ for _, tt := range []struct {
+ description string
+ flags header.TCPFlags
+ payloads testbench.Layers
+ 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},
+ {"FINACK", header.TCPFlagFin | header.TCPFlagAck, nil, 0, false},
+ {"Data", header.TCPFlagAck, []testbench.Layer{&testbench.Payload{Bytes: []byte("Sample Data")}}, 0, false},
+
+ {"SYN", header.TCPFlagSyn, nil, 1, true},
+ {"SYNACK", header.TCPFlagSyn | header.TCPFlagAck, nil, 1, true},
+ {"ACK", header.TCPFlagAck, nil, 1, true},
+ {"FINACK", header.TCPFlagFin | header.TCPFlagAck, nil, 1, true},
+ {"Data", header.TCPFlagAck, []testbench.Layer{&testbench.Payload{Bytes: []byte("Sample Data")}}, 1, true},
+
+ {"SYN", header.TCPFlagSyn, nil, 2, true},
+ {"SYNACK", header.TCPFlagSyn | header.TCPFlagAck, nil, 2, true},
+ {"ACK", header.TCPFlagAck, nil, 2, true},
+ {"FINACK", header.TCPFlagFin | header.TCPFlagAck, nil, 2, true},
+ {"Data", header.TCPFlagAck, []testbench.Layer{&testbench.Payload{Bytes: []byte("Sample Data")}}, 2, true},
+ } {
+ t.Run(fmt.Sprintf("%s%d", tt.description, tt.seqNumOffset), func(t *testing.T) {
+ dut := testbench.NewDUT(t)
+ listenFD, remotePort := dut.CreateListener(t, unix.SOCK_STREAM, unix.IPPROTO_TCP, 1)
+ defer dut.Close(t, listenFD)
+ conn := dut.Net.NewTCPIPv4(t, testbench.TCP{DstPort: &remotePort}, testbench.TCP{SrcPort: &remotePort})
+ defer conn.Close(t)
+ conn.Connect(t)
+ acceptFD, _ := dut.Accept(t, listenFD)
+ defer dut.Close(t, acceptFD)
+
+ dut.Shutdown(t, acceptFD, unix.SHUT_WR)
+
+ if _, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagFin | header.TCPFlagAck)}, time.Second); err != nil {
+ t.Fatalf("expected FINACK from DUT, but got none: %s", err)
+ }
+
+ // Do not ack the FIN from DUT so that the TCP state on DUT is CLOSING instead of CLOSED.
+ seqNumForTheirFIN := testbench.Uint32(uint32(*conn.RemoteSeqNum(t)) - 1)
+ conn.Send(t, testbench.TCP{AckNum: seqNumForTheirFIN, Flags: testbench.TCPFlags(header.TCPFlagFin | header.TCPFlagAck)})
+
+ gotTCP, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagAck)}, time.Second)
+ if err != nil {
+ t.Fatalf("expected an ACK to our FIN, but got none: %s", err)
+ }
+
+ windowSize := seqnum.Size(*gotTCP.WindowSize) + tt.seqNumOffset
+ conn.SendFrameStateless(t, conn.CreateFrame(t, testbench.Layers{&testbench.TCP{
+ SeqNum: testbench.Uint32(uint32(conn.LocalSeqNum(t).Add(windowSize))),
+ AckNum: seqNumForTheirFIN,
+ Flags: testbench.TCPFlags(tt.flags),
+ }}, tt.payloads...))
+
+ gotACK, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagAck)}, time.Second)
+ if tt.expectACK && err != nil {
+ t.Errorf("expected an ACK but got none: %s", err)
+ }
+ if !tt.expectACK && gotACK != nil {
+ t.Errorf("expected no ACK but got one: %s", gotACK)
+ }
+ })
+ }
+}
diff --git a/test/packetimpact/tests/tcp_unacc_seq_ack_closing_test.go b/test/packetimpact/tests/tcp_unacc_seq_ack_closing_test.go
deleted file mode 100644
index a208210ac..000000000
--- a/test/packetimpact/tests/tcp_unacc_seq_ack_closing_test.go
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright 2021 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_unacc_seq_ack_closing_test
-
-import (
- "flag"
- "fmt"
- "testing"
- "time"
-
- "golang.org/x/sys/unix"
- "gvisor.dev/gvisor/pkg/tcpip/header"
- "gvisor.dev/gvisor/pkg/tcpip/seqnum"
- "gvisor.dev/gvisor/test/packetimpact/testbench"
-)
-
-func init() {
- testbench.Initialize(flag.CommandLine)
-}
-
-func TestSimultaneousCloseUnaccSeqAck(t *testing.T) {
- for _, tt := range []struct {
- description string
- makeTestingTCP func(t *testing.T, conn *testbench.TCPIPv4, seqNumOffset, windowSize seqnum.Size) testbench.TCP
- seqNumOffset seqnum.Size
- expectAck bool
- }{
- {description: "OTWSeq", makeTestingTCP: testbench.GenerateOTWSeqSegment, seqNumOffset: 0, expectAck: true},
- {description: "OTWSeq", makeTestingTCP: testbench.GenerateOTWSeqSegment, seqNumOffset: 1, expectAck: true},
- {description: "OTWSeq", makeTestingTCP: testbench.GenerateOTWSeqSegment, seqNumOffset: 2, expectAck: true},
- {description: "UnaccAck", makeTestingTCP: testbench.GenerateUnaccACKSegment, seqNumOffset: 0, expectAck: false},
- {description: "UnaccAck", makeTestingTCP: testbench.GenerateUnaccACKSegment, seqNumOffset: 1, expectAck: true},
- {description: "UnaccAck", makeTestingTCP: testbench.GenerateUnaccACKSegment, seqNumOffset: 2, expectAck: true},
- } {
- t.Run(fmt.Sprintf("%s:offset=%d", tt.description, tt.seqNumOffset), func(t *testing.T) {
- dut := testbench.NewDUT(t)
- listenFD, remotePort := dut.CreateListener(t, unix.SOCK_STREAM, unix.IPPROTO_TCP, 1 /*backlog*/)
- defer dut.Close(t, listenFD)
- conn := dut.Net.NewTCPIPv4(t, testbench.TCP{DstPort: &remotePort}, testbench.TCP{SrcPort: &remotePort})
- defer conn.Close(t)
-
- conn.Connect(t)
- acceptFD, _ := dut.Accept(t, listenFD)
-
- // Trigger active close.
- dut.Shutdown(t, acceptFD, unix.SHUT_WR)
-
- gotTCP, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagFin | header.TCPFlagAck)}, time.Second)
- if err != nil {
- t.Fatalf("expected a FIN: %s", err)
- }
- // Do not ack the FIN from DUT so that we get to CLOSING.
- seqNumForTheirFIN := testbench.Uint32(uint32(*conn.RemoteSeqNum(t)) - 1)
- conn.Send(t, testbench.TCP{AckNum: seqNumForTheirFIN, Flags: testbench.TCPFlags(header.TCPFlagFin | header.TCPFlagAck)})
-
- if _, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagAck)}, time.Second); err != nil {
- t.Errorf("expected an ACK to our FIN, but got none: %s", err)
- }
-
- sampleData := []byte("Sample Data")
- samplePayload := &testbench.Payload{Bytes: sampleData}
-
- origSeq := uint32(*conn.LocalSeqNum(t))
- // Send a segment with OTW Seq / unacc ACK.
- tcp := tt.makeTestingTCP(t, &conn, tt.seqNumOffset, seqnum.Size(*gotTCP.WindowSize))
- if tt.description == "OTWSeq" {
- // If we generate an OTW Seq segment, make sure we don't acknowledge their FIN so that
- // we stay in CLOSING.
- tcp.AckNum = seqNumForTheirFIN
- }
- conn.Send(t, tcp, samplePayload)
-
- got, err := conn.Expect(t, testbench.TCP{AckNum: testbench.Uint32(origSeq), Flags: testbench.TCPFlags(header.TCPFlagAck)}, time.Second)
- if tt.expectAck && err != nil {
- t.Errorf("expected an ack in CLOSING state, but got none: %s", err)
- }
- if !tt.expectAck && got != nil {
- t.Errorf("expected no ack in CLOSING state, but got one: %s", got)
- }
- })
- }
-}
diff --git a/test/packetimpact/tests/tcp_unacc_seq_ack_test.go b/test/packetimpact/tests/tcp_unacc_seq_ack_test.go
index ce0a26171..389bfc629 100644
--- a/test/packetimpact/tests/tcp_unacc_seq_ack_test.go
+++ b/test/packetimpact/tests/tcp_unacc_seq_ack_test.go
@@ -209,3 +209,66 @@ func TestActiveCloseUnaccpSeqAck(t *testing.T) {
})
}
}
+
+func TestSimultaneousCloseUnaccSeqAck(t *testing.T) {
+ for _, tt := range []struct {
+ description string
+ makeTestingTCP func(t *testing.T, conn *testbench.TCPIPv4, seqNumOffset, windowSize seqnum.Size) testbench.TCP
+ seqNumOffset seqnum.Size
+ expectAck bool
+ }{
+ {description: "OTWSeq", makeTestingTCP: testbench.GenerateOTWSeqSegment, seqNumOffset: 0, expectAck: false},
+ {description: "OTWSeq", makeTestingTCP: testbench.GenerateOTWSeqSegment, seqNumOffset: 1, expectAck: true},
+ {description: "OTWSeq", makeTestingTCP: testbench.GenerateOTWSeqSegment, seqNumOffset: 2, expectAck: true},
+ {description: "UnaccAck", makeTestingTCP: testbench.GenerateUnaccACKSegment, seqNumOffset: 0, expectAck: false},
+ {description: "UnaccAck", makeTestingTCP: testbench.GenerateUnaccACKSegment, seqNumOffset: 1, expectAck: true},
+ {description: "UnaccAck", makeTestingTCP: testbench.GenerateUnaccACKSegment, seqNumOffset: 2, expectAck: true},
+ } {
+ t.Run(fmt.Sprintf("%s:offset=%d", tt.description, tt.seqNumOffset), func(t *testing.T) {
+ dut := testbench.NewDUT(t)
+ listenFD, remotePort := dut.CreateListener(t, unix.SOCK_STREAM, unix.IPPROTO_TCP, 1 /*backlog*/)
+ defer dut.Close(t, listenFD)
+ conn := dut.Net.NewTCPIPv4(t, testbench.TCP{DstPort: &remotePort}, testbench.TCP{SrcPort: &remotePort})
+ defer conn.Close(t)
+
+ conn.Connect(t)
+ acceptFD, _ := dut.Accept(t, listenFD)
+
+ // Trigger active close.
+ dut.Shutdown(t, acceptFD, unix.SHUT_WR)
+
+ if _, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagFin | header.TCPFlagAck)}, time.Second); err != nil {
+ t.Fatalf("expected a FIN: %s", err)
+ }
+ // Do not ack the FIN from DUT so that we get to CLOSING.
+ seqNumForTheirFIN := testbench.Uint32(uint32(*conn.RemoteSeqNum(t)) - 1)
+ conn.Send(t, testbench.TCP{AckNum: seqNumForTheirFIN, Flags: testbench.TCPFlags(header.TCPFlagFin | header.TCPFlagAck)})
+
+ gotTCP, err := conn.Expect(t, testbench.TCP{Flags: testbench.TCPFlags(header.TCPFlagAck)}, time.Second)
+ if err != nil {
+ t.Errorf("expected an ACK to our FIN, but got none: %s", err)
+ }
+
+ sampleData := []byte("Sample Data")
+ samplePayload := &testbench.Payload{Bytes: sampleData}
+
+ origSeq := uint32(*conn.LocalSeqNum(t))
+ // Send a segment with OTW Seq / unacc ACK.
+ tcp := tt.makeTestingTCP(t, &conn, tt.seqNumOffset, seqnum.Size(*gotTCP.WindowSize))
+ if tt.description == "OTWSeq" {
+ // If we generate an OTW Seq segment, make sure we don't acknowledge their FIN so that
+ // we stay in CLOSING.
+ tcp.AckNum = seqNumForTheirFIN
+ }
+ conn.Send(t, tcp, samplePayload)
+
+ got, err := conn.Expect(t, testbench.TCP{AckNum: testbench.Uint32(origSeq), Flags: testbench.TCPFlags(header.TCPFlagAck)}, time.Second)
+ if tt.expectAck && err != nil {
+ t.Errorf("expected an ack in CLOSING state, but got none: %s", err)
+ }
+ if !tt.expectAck && got != nil {
+ t.Errorf("expected no ack in CLOSING state, but got one: %s", got)
+ }
+ })
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 12:10:28 +0000