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-rw-r--r--pkg/tcpip/header/BUILD59
-rw-r--r--pkg/tcpip/header/checksum_test.go109
-rw-r--r--pkg/tcpip/header/eth_test.go68
-rwxr-xr-xpkg/tcpip/header/header_state_autogen.go42
-rw-r--r--pkg/tcpip/header/ipversion_test.go67
-rwxr-xr-x[-rw-r--r--]pkg/tcpip/header/ndp_neighbor_advert.go0
-rwxr-xr-x[-rw-r--r--]pkg/tcpip/header/ndp_neighbor_solicit.go0
-rwxr-xr-x[-rw-r--r--]pkg/tcpip/header/ndp_options.go0
-rwxr-xr-x[-rw-r--r--]pkg/tcpip/header/ndp_router_advert.go0
-rw-r--r--pkg/tcpip/header/ndp_test.go570
-rw-r--r--pkg/tcpip/header/tcp_test.go148
11 files changed, 42 insertions, 1021 deletions
diff --git a/pkg/tcpip/header/BUILD b/pkg/tcpip/header/BUILD
deleted file mode 100644
index a3485b35c..000000000
--- a/pkg/tcpip/header/BUILD
+++ /dev/null
@@ -1,59 +0,0 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_test")
-load("//tools/go_stateify:defs.bzl", "go_library")
-
-package(licenses = ["notice"])
-
-go_library(
- name = "header",
- srcs = [
- "arp.go",
- "checksum.go",
- "eth.go",
- "gue.go",
- "icmpv4.go",
- "icmpv6.go",
- "interfaces.go",
- "ipv4.go",
- "ipv6.go",
- "ipv6_fragment.go",
- "ndp_neighbor_advert.go",
- "ndp_neighbor_solicit.go",
- "ndp_options.go",
- "ndp_router_advert.go",
- "tcp.go",
- "udp.go",
- ],
- importpath = "gvisor.dev/gvisor/pkg/tcpip/header",
- visibility = ["//visibility:public"],
- deps = [
- "//pkg/tcpip",
- "//pkg/tcpip/buffer",
- "//pkg/tcpip/seqnum",
- "@com_github_google_btree//:go_default_library",
- ],
-)
-
-go_test(
- name = "header_x_test",
- size = "small",
- srcs = [
- "checksum_test.go",
- "ipversion_test.go",
- "tcp_test.go",
- ],
- deps = [
- ":header",
- "//pkg/tcpip/buffer",
- ],
-)
-
-go_test(
- name = "header_test",
- size = "small",
- srcs = [
- "eth_test.go",
- "ndp_test.go",
- ],
- embed = [":header"],
- deps = ["//pkg/tcpip"],
-)
diff --git a/pkg/tcpip/header/checksum_test.go b/pkg/tcpip/header/checksum_test.go
deleted file mode 100644
index 86b466c1c..000000000
--- a/pkg/tcpip/header/checksum_test.go
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright 2019 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 header provides the implementation of the encoding and decoding of
-// network protocol headers.
-package header_test
-
-import (
- "testing"
-
- "gvisor.dev/gvisor/pkg/tcpip/buffer"
- "gvisor.dev/gvisor/pkg/tcpip/header"
-)
-
-func TestChecksumVVWithOffset(t *testing.T) {
- testCases := []struct {
- name string
- vv buffer.VectorisedView
- off, size int
- initial uint16
- want uint16
- }{
- {
- name: "empty",
- vv: buffer.NewVectorisedView(0, []buffer.View{
- buffer.NewViewFromBytes([]byte{1, 9, 0, 5, 4}),
- }),
- off: 0,
- size: 0,
- want: 0,
- },
- {
- name: "OneView",
- vv: buffer.NewVectorisedView(0, []buffer.View{
- buffer.NewViewFromBytes([]byte{1, 9, 0, 5, 4}),
- }),
- off: 0,
- size: 5,
- want: 1294,
- },
- {
- name: "TwoViews",
- vv: buffer.NewVectorisedView(0, []buffer.View{
- buffer.NewViewFromBytes([]byte{1, 9, 0, 5, 4}),
- buffer.NewViewFromBytes([]byte{4, 3, 7, 1, 2, 123}),
- }),
- off: 0,
- size: 11,
- want: 33819,
- },
- {
- name: "TwoViewsWithOffset",
- vv: buffer.NewVectorisedView(0, []buffer.View{
- buffer.NewViewFromBytes([]byte{98, 1, 9, 0, 5, 4}),
- buffer.NewViewFromBytes([]byte{4, 3, 7, 1, 2, 123}),
- }),
- off: 1,
- size: 11,
- want: 33819,
- },
- {
- name: "ThreeViewsWithOffset",
- vv: buffer.NewVectorisedView(0, []buffer.View{
- buffer.NewViewFromBytes([]byte{98, 1, 9, 0, 5, 4}),
- buffer.NewViewFromBytes([]byte{98, 1, 9, 0, 5, 4}),
- buffer.NewViewFromBytes([]byte{4, 3, 7, 1, 2, 123}),
- }),
- off: 7,
- size: 11,
- want: 33819,
- },
- {
- name: "ThreeViewsWithInitial",
- vv: buffer.NewVectorisedView(0, []buffer.View{
- buffer.NewViewFromBytes([]byte{77, 11, 33, 0, 55, 44}),
- buffer.NewViewFromBytes([]byte{98, 1, 9, 0, 5, 4}),
- buffer.NewViewFromBytes([]byte{4, 3, 7, 1, 2, 123, 99}),
- }),
- initial: 77,
- off: 7,
- size: 11,
- want: 33896,
- },
- }
- for _, tc := range testCases {
- t.Run(tc.name, func(t *testing.T) {
- if got, want := header.ChecksumVVWithOffset(tc.vv, tc.initial, tc.off, tc.size), tc.want; got != want {
- t.Errorf("header.ChecksumVVWithOffset(%v) = %v, want: %v", tc, got, tc.want)
- }
- v := tc.vv.ToView()
- v.TrimFront(tc.off)
- v.CapLength(tc.size)
- if got, want := header.Checksum(v, tc.initial), tc.want; got != want {
- t.Errorf("header.Checksum(%v) = %v, want: %v", tc, got, tc.want)
- }
- })
- }
-}
diff --git a/pkg/tcpip/header/eth_test.go b/pkg/tcpip/header/eth_test.go
deleted file mode 100644
index 6634c90f5..000000000
--- a/pkg/tcpip/header/eth_test.go
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright 2018 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 header
-
-import (
- "testing"
-
- "gvisor.dev/gvisor/pkg/tcpip"
-)
-
-func TestIsValidUnicastEthernetAddress(t *testing.T) {
- tests := []struct {
- name string
- addr tcpip.LinkAddress
- expected bool
- }{
- {
- "Nil",
- tcpip.LinkAddress([]byte(nil)),
- false,
- },
- {
- "Empty",
- tcpip.LinkAddress(""),
- false,
- },
- {
- "InvalidLength",
- tcpip.LinkAddress("\x01\x02\x03"),
- false,
- },
- {
- "Unspecified",
- unspecifiedEthernetAddress,
- false,
- },
- {
- "Multicast",
- tcpip.LinkAddress("\x01\x02\x03\x04\x05\x06"),
- false,
- },
- {
- "Valid",
- tcpip.LinkAddress("\x02\x02\x03\x04\x05\x06"),
- true,
- },
- }
-
- for _, test := range tests {
- t.Run(test.name, func(t *testing.T) {
- if got := IsValidUnicastEthernetAddress(test.addr); got != test.expected {
- t.Fatalf("got IsValidUnicastEthernetAddress = %t, want = %t", got, test.expected)
- }
- })
- }
-}
diff --git a/pkg/tcpip/header/header_state_autogen.go b/pkg/tcpip/header/header_state_autogen.go
new file mode 100755
index 000000000..4fcb89452
--- /dev/null
+++ b/pkg/tcpip/header/header_state_autogen.go
@@ -0,0 +1,42 @@
+// automatically generated by stateify.
+
+package header
+
+import (
+ "gvisor.dev/gvisor/pkg/state"
+)
+
+func (x *SACKBlock) beforeSave() {}
+func (x *SACKBlock) save(m state.Map) {
+ x.beforeSave()
+ m.Save("Start", &x.Start)
+ m.Save("End", &x.End)
+}
+
+func (x *SACKBlock) afterLoad() {}
+func (x *SACKBlock) load(m state.Map) {
+ m.Load("Start", &x.Start)
+ m.Load("End", &x.End)
+}
+
+func (x *TCPOptions) beforeSave() {}
+func (x *TCPOptions) save(m state.Map) {
+ x.beforeSave()
+ m.Save("TS", &x.TS)
+ m.Save("TSVal", &x.TSVal)
+ m.Save("TSEcr", &x.TSEcr)
+ m.Save("SACKBlocks", &x.SACKBlocks)
+}
+
+func (x *TCPOptions) afterLoad() {}
+func (x *TCPOptions) load(m state.Map) {
+ m.Load("TS", &x.TS)
+ m.Load("TSVal", &x.TSVal)
+ m.Load("TSEcr", &x.TSEcr)
+ m.Load("SACKBlocks", &x.SACKBlocks)
+}
+
+func init() {
+ state.Register("header.SACKBlock", (*SACKBlock)(nil), state.Fns{Save: (*SACKBlock).save, Load: (*SACKBlock).load})
+ state.Register("header.TCPOptions", (*TCPOptions)(nil), state.Fns{Save: (*TCPOptions).save, Load: (*TCPOptions).load})
+}
diff --git a/pkg/tcpip/header/ipversion_test.go b/pkg/tcpip/header/ipversion_test.go
deleted file mode 100644
index b5540bf66..000000000
--- a/pkg/tcpip/header/ipversion_test.go
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright 2018 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 header_test
-
-import (
- "testing"
-
- "gvisor.dev/gvisor/pkg/tcpip/header"
-)
-
-func TestIPv4(t *testing.T) {
- b := header.IPv4(make([]byte, header.IPv4MinimumSize))
- b.Encode(&header.IPv4Fields{})
-
- const want = header.IPv4Version
- if v := header.IPVersion(b); v != want {
- t.Fatalf("Bad version, want %v, got %v", want, v)
- }
-}
-
-func TestIPv6(t *testing.T) {
- b := header.IPv6(make([]byte, header.IPv6MinimumSize))
- b.Encode(&header.IPv6Fields{})
-
- const want = header.IPv6Version
- if v := header.IPVersion(b); v != want {
- t.Fatalf("Bad version, want %v, got %v", want, v)
- }
-}
-
-func TestOtherVersion(t *testing.T) {
- const want = header.IPv4Version + header.IPv6Version
- b := make([]byte, 1)
- b[0] = want << 4
-
- if v := header.IPVersion(b); v != want {
- t.Fatalf("Bad version, want %v, got %v", want, v)
- }
-}
-
-func TestTooShort(t *testing.T) {
- b := make([]byte, 1)
- b[0] = (header.IPv4Version + header.IPv6Version) << 4
-
- // Get the version of a zero-length slice.
- const want = -1
- if v := header.IPVersion(b[:0]); v != want {
- t.Fatalf("Bad version, want %v, got %v", want, v)
- }
-
- // Get the version of a nil slice.
- if v := header.IPVersion(nil); v != want {
- t.Fatalf("Bad version, want %v, got %v", want, v)
- }
-}
diff --git a/pkg/tcpip/header/ndp_neighbor_advert.go b/pkg/tcpip/header/ndp_neighbor_advert.go
index 505c92668..505c92668 100644..100755
--- a/pkg/tcpip/header/ndp_neighbor_advert.go
+++ b/pkg/tcpip/header/ndp_neighbor_advert.go
diff --git a/pkg/tcpip/header/ndp_neighbor_solicit.go b/pkg/tcpip/header/ndp_neighbor_solicit.go
index 3a1b8e139..3a1b8e139 100644..100755
--- a/pkg/tcpip/header/ndp_neighbor_solicit.go
+++ b/pkg/tcpip/header/ndp_neighbor_solicit.go
diff --git a/pkg/tcpip/header/ndp_options.go b/pkg/tcpip/header/ndp_options.go
index a2b9d7435..a2b9d7435 100644..100755
--- a/pkg/tcpip/header/ndp_options.go
+++ b/pkg/tcpip/header/ndp_options.go
diff --git a/pkg/tcpip/header/ndp_router_advert.go b/pkg/tcpip/header/ndp_router_advert.go
index bf7610863..bf7610863 100644..100755
--- a/pkg/tcpip/header/ndp_router_advert.go
+++ b/pkg/tcpip/header/ndp_router_advert.go
diff --git a/pkg/tcpip/header/ndp_test.go b/pkg/tcpip/header/ndp_test.go
deleted file mode 100644
index ad6daafcd..000000000
--- a/pkg/tcpip/header/ndp_test.go
+++ /dev/null
@@ -1,570 +0,0 @@
-// Copyright 2019 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 header
-
-import (
- "bytes"
- "testing"
- "time"
-
- "gvisor.dev/gvisor/pkg/tcpip"
-)
-
-// TestNDPNeighborSolicit tests the functions of NDPNeighborSolicit.
-func TestNDPNeighborSolicit(t *testing.T) {
- b := []byte{
- 0, 0, 0, 0,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- }
-
- // Test getting the Target Address.
- ns := NDPNeighborSolicit(b)
- addr := tcpip.Address("\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10")
- if got := ns.TargetAddress(); got != addr {
- t.Errorf("got ns.TargetAddress = %s, want %s", got, addr)
- }
-
- // Test updating the Target Address.
- addr2 := tcpip.Address("\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x11")
- ns.SetTargetAddress(addr2)
- if got := ns.TargetAddress(); got != addr2 {
- t.Errorf("got ns.TargetAddress = %s, want %s", got, addr2)
- }
- // Make sure the address got updated in the backing buffer.
- if got := tcpip.Address(b[ndpNSTargetAddessOffset:][:IPv6AddressSize]); got != addr2 {
- t.Errorf("got targetaddress buffer = %s, want %s", got, addr2)
- }
-}
-
-// TestNDPNeighborAdvert tests the functions of NDPNeighborAdvert.
-func TestNDPNeighborAdvert(t *testing.T) {
- b := []byte{
- 160, 0, 0, 0,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- }
-
- // Test getting the Target Address.
- na := NDPNeighborAdvert(b)
- addr := tcpip.Address("\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10")
- if got := na.TargetAddress(); got != addr {
- t.Errorf("got TargetAddress = %s, want %s", got, addr)
- }
-
- // Test getting the Router Flag.
- if got := na.RouterFlag(); !got {
- t.Errorf("got RouterFlag = false, want = true")
- }
-
- // Test getting the Solicited Flag.
- if got := na.SolicitedFlag(); got {
- t.Errorf("got SolicitedFlag = true, want = false")
- }
-
- // Test getting the Override Flag.
- if got := na.OverrideFlag(); !got {
- t.Errorf("got OverrideFlag = false, want = true")
- }
-
- // Test updating the Target Address.
- addr2 := tcpip.Address("\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x11")
- na.SetTargetAddress(addr2)
- if got := na.TargetAddress(); got != addr2 {
- t.Errorf("got TargetAddress = %s, want %s", got, addr2)
- }
- // Make sure the address got updated in the backing buffer.
- if got := tcpip.Address(b[ndpNATargetAddressOffset:][:IPv6AddressSize]); got != addr2 {
- t.Errorf("got targetaddress buffer = %s, want %s", got, addr2)
- }
-
- // Test updating the Router Flag.
- na.SetRouterFlag(false)
- if got := na.RouterFlag(); got {
- t.Errorf("got RouterFlag = true, want = false")
- }
-
- // Test updating the Solicited Flag.
- na.SetSolicitedFlag(true)
- if got := na.SolicitedFlag(); !got {
- t.Errorf("got SolicitedFlag = false, want = true")
- }
-
- // Test updating the Override Flag.
- na.SetOverrideFlag(false)
- if got := na.OverrideFlag(); got {
- t.Errorf("got OverrideFlag = true, want = false")
- }
-
- // Make sure flags got updated in the backing buffer.
- if got := b[ndpNAFlagsOffset]; got != 64 {
- t.Errorf("got flags byte = %d, want = 64")
- }
-}
-
-func TestNDPRouterAdvert(t *testing.T) {
- b := []byte{
- 64, 128, 1, 2,
- 3, 4, 5, 6,
- 7, 8, 9, 10,
- }
-
- ra := NDPRouterAdvert(b)
-
- if got := ra.CurrHopLimit(); got != 64 {
- t.Errorf("got ra.CurrHopLimit = %d, want = 64", got)
- }
-
- if got := ra.ManagedAddrConfFlag(); !got {
- t.Errorf("got ManagedAddrConfFlag = false, want = true")
- }
-
- if got := ra.OtherConfFlag(); got {
- t.Errorf("got OtherConfFlag = true, want = false")
- }
-
- if got, want := ra.RouterLifetime(), time.Second*258; got != want {
- t.Errorf("got ra.RouterLifetime = %d, want = %d", got, want)
- }
-
- if got, want := ra.ReachableTime(), time.Millisecond*50595078; got != want {
- t.Errorf("got ra.ReachableTime = %d, want = %d", got, want)
- }
-
- if got, want := ra.RetransTimer(), time.Millisecond*117967114; got != want {
- t.Errorf("got ra.RetransTimer = %d, want = %d", got, want)
- }
-}
-
-// TestNDPTargetLinkLayerAddressOptionEthernetAddress tests getting the
-// Ethernet address from an NDPTargetLinkLayerAddressOption.
-func TestNDPTargetLinkLayerAddressOptionEthernetAddress(t *testing.T) {
- tests := []struct {
- name string
- buf []byte
- expected tcpip.LinkAddress
- }{
- {
- "ValidMAC",
- []byte{1, 2, 3, 4, 5, 6},
- tcpip.LinkAddress("\x01\x02\x03\x04\x05\x06"),
- },
- {
- "TLLBodyTooShort",
- []byte{1, 2, 3, 4, 5},
- tcpip.LinkAddress([]byte(nil)),
- },
- {
- "TLLBodyLargerThanNeeded",
- []byte{1, 2, 3, 4, 5, 6, 7, 8},
- tcpip.LinkAddress("\x01\x02\x03\x04\x05\x06"),
- },
- }
-
- for _, test := range tests {
- t.Run(test.name, func(t *testing.T) {
- tll := NDPTargetLinkLayerAddressOption(test.buf)
- if got := tll.EthernetAddress(); got != test.expected {
- t.Errorf("got tll.EthernetAddress = %s, want = %s", got, test.expected)
- }
- })
- }
-
-}
-
-// TestNDPTargetLinkLayerAddressOptionSerialize tests serializing a
-// NDPTargetLinkLayerAddressOption.
-func TestNDPTargetLinkLayerAddressOptionSerialize(t *testing.T) {
- tests := []struct {
- name string
- buf []byte
- expectedBuf []byte
- addr tcpip.LinkAddress
- }{
- {
- "Ethernet",
- make([]byte, 8),
- []byte{2, 1, 1, 2, 3, 4, 5, 6},
- "\x01\x02\x03\x04\x05\x06",
- },
- {
- "Padding",
- []byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
- []byte{2, 2, 1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 0, 0, 0, 0},
- "\x01\x02\x03\x04\x05\x06\x07\x08",
- },
- {
- "Empty",
- []byte{},
- []byte{},
- "",
- },
- }
-
- for _, test := range tests {
- t.Run(test.name, func(t *testing.T) {
- opts := NDPOptions(test.buf)
- serializer := NDPOptionsSerializer{
- NDPTargetLinkLayerAddressOption(test.addr),
- }
- if got, want := int(serializer.Length()), len(test.expectedBuf); got != want {
- t.Fatalf("got Length = %d, want = %d", got, want)
- }
- opts.Serialize(serializer)
- if !bytes.Equal(test.buf, test.expectedBuf) {
- t.Fatalf("got b = %d, want = %d", test.buf, test.expectedBuf)
- }
-
- it, err := opts.Iter(true)
- if err != nil {
- t.Fatalf("got Iter = (_, %s), want = (_, nil)", err)
- }
-
- if len(test.expectedBuf) > 0 {
- next, done, err := it.Next()
- if err != nil {
- t.Fatalf("got Next = (_, _, %s), want = (_, _, nil)", err)
- }
- if done {
- t.Fatal("got Next = (_, true, _), want = (_, false, _)")
- }
- if got := next.Type(); got != NDPTargetLinkLayerAddressOptionType {
- t.Fatalf("got Type %= %d, want = %d", got, NDPTargetLinkLayerAddressOptionType)
- }
- tll := next.(NDPTargetLinkLayerAddressOption)
- if got, want := []byte(tll), test.expectedBuf[2:]; !bytes.Equal(got, want) {
- t.Fatalf("got Next = (%x, _, _), want = (%x, _, _)", got, want)
- }
-
- if got, want := tll.EthernetAddress(), tcpip.LinkAddress(test.expectedBuf[2:][:EthernetAddressSize]); got != want {
- t.Errorf("got tll.MACAddress = %s, want = %s", got, want)
- }
- }
-
- // Iterator should not return anything else.
- next, done, err := it.Next()
- if err != nil {
- t.Errorf("got Next = (_, _, %s), want = (_, _, nil)", err)
- }
- if !done {
- t.Error("got Next = (_, false, _), want = (_, true, _)")
- }
- if next != nil {
- t.Errorf("got Next = (%x, _, _), want = (nil, _, _)", next)
- }
- })
- }
-}
-
-// TestNDPPrefixInformationOption tests the field getters and serialization of a
-// NDPPrefixInformation.
-func TestNDPPrefixInformationOption(t *testing.T) {
- b := []byte{
- 43, 127,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 5, 5, 5, 5,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- 17, 18, 19, 20,
- 21, 22, 23, 24,
- }
-
- targetBuf := []byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}
- opts := NDPOptions(targetBuf)
- serializer := NDPOptionsSerializer{
- NDPPrefixInformation(b),
- }
- opts.Serialize(serializer)
- expectedBuf := []byte{
- 3, 4, 43, 64,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 0, 0, 0, 0,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- 17, 18, 19, 20,
- 21, 22, 23, 24,
- }
- if !bytes.Equal(targetBuf, expectedBuf) {
- t.Fatalf("got targetBuf = %x, want = %x", targetBuf, expectedBuf)
- }
-
- it, err := opts.Iter(true)
- if err != nil {
- t.Fatalf("got Iter = (_, %s), want = (_, nil)", err)
- }
-
- next, done, err := it.Next()
- if err != nil {
- t.Fatalf("got Next = (_, _, %s), want = (_, _, nil)", err)
- }
- if done {
- t.Fatal("got Next = (_, true, _), want = (_, false, _)")
- }
- if got := next.Type(); got != NDPPrefixInformationType {
- t.Errorf("got Type = %d, want = %d", got, NDPPrefixInformationType)
- }
-
- pi := next.(NDPPrefixInformation)
-
- if got := pi.Type(); got != 3 {
- t.Errorf("got Type = %d, want = 3", got)
- }
-
- if got := pi.Length(); got != 30 {
- t.Errorf("got Length = %d, want = 30", got)
- }
-
- if got := pi.PrefixLength(); got != 43 {
- t.Errorf("got PrefixLength = %d, want = 43", got)
- }
-
- if pi.OnLinkFlag() {
- t.Error("got OnLinkFlag = true, want = false")
- }
-
- if !pi.AutonomousAddressConfigurationFlag() {
- t.Error("got AutonomousAddressConfigurationFlag = false, want = true")
- }
-
- if got, want := pi.ValidLifetime(), 16909060*time.Second; got != want {
- t.Errorf("got ValidLifetime = %d, want = %d", got, want)
- }
-
- if got, want := pi.PreferredLifetime(), 84281096*time.Second; got != want {
- t.Errorf("got PreferredLifetime = %d, want = %d", got, want)
- }
-
- if got, want := pi.Prefix(), tcpip.Address("\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18"); got != want {
- t.Errorf("got Prefix = %s, want = %s", got, want)
- }
-
- // Iterator should not return anything else.
- next, done, err = it.Next()
- if err != nil {
- t.Errorf("got Next = (_, _, %s), want = (_, _, nil)", err)
- }
- if !done {
- t.Error("got Next = (_, false, _), want = (_, true, _)")
- }
- if next != nil {
- t.Errorf("got Next = (%x, _, _), want = (nil, _, _)", next)
- }
-}
-
-// TestNDPOptionsIterCheck tests that Iter will return false if the NDPOptions
-// the iterator was returned for is malformed.
-func TestNDPOptionsIterCheck(t *testing.T) {
- tests := []struct {
- name string
- buf []byte
- expected error
- }{
- {
- "ZeroLengthField",
- []byte{0, 0, 0, 0, 0, 0, 0, 0},
- ErrNDPOptZeroLength,
- },
- {
- "ValidTargetLinkLayerAddressOption",
- []byte{2, 1, 1, 2, 3, 4, 5, 6},
- nil,
- },
- {
- "TooSmallTargetLinkLayerAddressOption",
- []byte{2, 1, 1, 2, 3, 4, 5},
- ErrNDPOptBufExhausted,
- },
- {
- "ValidPrefixInformation",
- []byte{
- 3, 4, 43, 64,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 0, 0, 0, 0,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- 17, 18, 19, 20,
- 21, 22, 23, 24,
- },
- nil,
- },
- {
- "TooSmallPrefixInformation",
- []byte{
- 3, 4, 43, 64,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 0, 0, 0, 0,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- 17, 18, 19, 20,
- 21, 22, 23,
- },
- ErrNDPOptBufExhausted,
- },
- {
- "InvalidPrefixInformationLength",
- []byte{
- 3, 3, 43, 64,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 0, 0, 0, 0,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- },
- ErrNDPOptMalformedBody,
- },
- {
- "ValidTargetLinkLayerAddressWithPrefixInformation",
- []byte{
- // Target Link-Layer Address.
- 2, 1, 1, 2, 3, 4, 5, 6,
-
- // Prefix information.
- 3, 4, 43, 64,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 0, 0, 0, 0,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- 17, 18, 19, 20,
- 21, 22, 23, 24,
- },
- nil,
- },
- {
- "ValidTargetLinkLayerAddressWithPrefixInformationWithUnrecognized",
- []byte{
- // Target Link-Layer Address.
- 2, 1, 1, 2, 3, 4, 5, 6,
-
- // 255 is an unrecognized type. If 255 ends up
- // being the type for some recognized type,
- // update 255 to some other unrecognized value.
- 255, 2, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8,
-
- // Prefix information.
- 3, 4, 43, 64,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 0, 0, 0, 0,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- 17, 18, 19, 20,
- 21, 22, 23, 24,
- },
- nil,
- },
- }
-
- for _, test := range tests {
- t.Run(test.name, func(t *testing.T) {
- opts := NDPOptions(test.buf)
-
- if _, err := opts.Iter(true); err != test.expected {
- t.Fatalf("got Iter(true) = (_, %v), want = (_, %v)", err, test.expected)
- }
-
- // test.buf may be malformed but we chose not to check
- // the iterator so it must return true.
- if _, err := opts.Iter(false); err != nil {
- t.Fatalf("got Iter(false) = (_, %s), want = (_, nil)", err)
- }
- })
- }
-}
-
-// TestNDPOptionsIter tests that we can iterator over a valid NDPOptions. Note,
-// this test does not actually check any of the option's getters, it simply
-// checks the option Type and Body. We have other tests that tests the option
-// field gettings given an option body and don't need to duplicate those tests
-// here.
-func TestNDPOptionsIter(t *testing.T) {
- buf := []byte{
- // Target Link-Layer Address.
- 2, 1, 1, 2, 3, 4, 5, 6,
-
- // 255 is an unrecognized type. If 255 ends up being the type
- // for some recognized type, update 255 to some other
- // unrecognized value. Note, this option should be skipped when
- // iterating.
- 255, 2, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8,
-
- // Prefix information.
- 3, 4, 43, 64,
- 1, 2, 3, 4,
- 5, 6, 7, 8,
- 0, 0, 0, 0,
- 9, 10, 11, 12,
- 13, 14, 15, 16,
- 17, 18, 19, 20,
- 21, 22, 23, 24,
- }
-
- opts := NDPOptions(buf)
- it, err := opts.Iter(true)
- if err != nil {
- t.Fatalf("got Iter = (_, %s), want = (_, nil)", err)
- }
-
- // Test the first (Taret Link-Layer) option.
- next, done, err := it.Next()
- if err != nil {
- t.Fatalf("got Next = (_, _, %s), want = (_, _, nil)", err)
- }
- if done {
- t.Fatal("got Next = (_, true, _), want = (_, false, _)")
- }
- if got, want := []byte(next.(NDPTargetLinkLayerAddressOption)), buf[2:][:6]; !bytes.Equal(got, want) {
- t.Errorf("got Next = (%x, _, _), want = (%x, _, _)", got, want)
- }
- if got := next.Type(); got != NDPTargetLinkLayerAddressOptionType {
- t.Errorf("got Type = %d, want = %d", got, NDPTargetLinkLayerAddressOptionType)
- }
-
- // Test the next (Prefix Information) option.
- // Note, the unrecognized option should be skipped.
- next, done, err = it.Next()
- if err != nil {
- t.Fatalf("got Next = (_, _, %s), want = (_, _, nil)", err)
- }
- if done {
- t.Fatal("got Next = (_, true, _), want = (_, false, _)")
- }
- if got, want := next.(NDPPrefixInformation), buf[26:][:30]; !bytes.Equal(got, want) {
- t.Errorf("got Next = (%x, _, _), want = (%x, _, _)", got, want)
- }
- if got := next.Type(); got != NDPPrefixInformationType {
- t.Errorf("got Type = %d, want = %d", got, NDPPrefixInformationType)
- }
-
- // Iterator should not return anything else.
- next, done, err = it.Next()
- if err != nil {
- t.Errorf("got Next = (_, _, %s), want = (_, _, nil)", err)
- }
- if !done {
- t.Error("got Next = (_, false, _), want = (_, true, _)")
- }
- if next != nil {
- t.Errorf("got Next = (%x, _, _), want = (nil, _, _)", next)
- }
-}
diff --git a/pkg/tcpip/header/tcp_test.go b/pkg/tcpip/header/tcp_test.go
deleted file mode 100644
index 72563837b..000000000
--- a/pkg/tcpip/header/tcp_test.go
+++ /dev/null
@@ -1,148 +0,0 @@
-// Copyright 2018 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 header_test
-
-import (
- "reflect"
- "testing"
-
- "gvisor.dev/gvisor/pkg/tcpip/header"
-)
-
-func TestEncodeSACKBlocks(t *testing.T) {
- testCases := []struct {
- sackBlocks []header.SACKBlock
- want []header.SACKBlock
- bufSize int
- }{
- {
- []header.SACKBlock{{10, 20}, {22, 30}, {32, 40}, {42, 50}, {52, 60}, {62, 70}},
- []header.SACKBlock{{10, 20}, {22, 30}, {32, 40}, {42, 50}},
- 40,
- },
- {
- []header.SACKBlock{{10, 20}, {22, 30}, {32, 40}, {42, 50}, {52, 60}, {62, 70}},
- []header.SACKBlock{{10, 20}, {22, 30}, {32, 40}},
- 30,
- },
- {
- []header.SACKBlock{{10, 20}, {22, 30}, {32, 40}, {42, 50}, {52, 60}, {62, 70}},
- []header.SACKBlock{{10, 20}, {22, 30}},
- 20,
- },
- {
- []header.SACKBlock{{10, 20}, {22, 30}, {32, 40}, {42, 50}, {52, 60}, {62, 70}},
- []header.SACKBlock{{10, 20}},
- 10,
- },
- {
- []header.SACKBlock{{10, 20}, {22, 30}, {32, 40}, {42, 50}, {52, 60}, {62, 70}},
- nil,
- 8,
- },
- {
- []header.SACKBlock{{10, 20}, {22, 30}, {32, 40}, {42, 50}, {52, 60}, {62, 70}},
- []header.SACKBlock{{10, 20}, {22, 30}, {32, 40}, {42, 50}},
- 60,
- },
- }
- for _, tc := range testCases {
- b := make([]byte, tc.bufSize)
- t.Logf("testing: %v", tc)
- header.EncodeSACKBlocks(tc.sackBlocks, b)
- opts := header.ParseTCPOptions(b)
- if got, want := opts.SACKBlocks, tc.want; !reflect.DeepEqual(got, want) {
- t.Errorf("header.EncodeSACKBlocks(%v, %v), encoded blocks got: %v, want: %v", tc.sackBlocks, b, got, want)
- }
- }
-}
-
-func TestTCPParseOptions(t *testing.T) {
- type tsOption struct {
- tsVal uint32
- tsEcr uint32
- }
-
- generateOptions := func(tsOpt *tsOption, sackBlocks []header.SACKBlock) []byte {
- l := 0
- if tsOpt != nil {
- l += 10
- }
- if len(sackBlocks) != 0 {
- l += len(sackBlocks)*8 + 2
- }
- b := make([]byte, l)
- offset := 0
- if tsOpt != nil {
- offset = header.EncodeTSOption(tsOpt.tsVal, tsOpt.tsEcr, b)
- }
- header.EncodeSACKBlocks(sackBlocks, b[offset:])
- return b
- }
-
- testCases := []struct {
- b []byte
- want header.TCPOptions
- }{
- // Trivial cases.
- {nil, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionNOP}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionNOP, header.TCPOptionNOP}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionEOL}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionNOP, header.TCPOptionEOL, header.TCPOptionTS, 10, 1, 1}, header.TCPOptions{false, 0, 0, nil}},
-
- // Test timestamp parsing.
- {[]byte{header.TCPOptionNOP, header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1}, header.TCPOptions{true, 1, 1, nil}},
- {[]byte{header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1}, header.TCPOptions{true, 1, 1, nil}},
-
- // Test malformed timestamp option.
- {[]byte{header.TCPOptionTS, 8, 1, 1}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionNOP, header.TCPOptionTS, 8, 1, 1}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionNOP, header.TCPOptionTS, 8, 0, 0, 0, 1, 0, 0, 0, 1}, header.TCPOptions{false, 0, 0, nil}},
-
- // Test SACKBlock parsing.
- {[]byte{header.TCPOptionSACK, 10, 0, 0, 0, 1, 0, 0, 0, 10}, header.TCPOptions{false, 0, 0, []header.SACKBlock{{1, 10}}}},
- {[]byte{header.TCPOptionSACK, 18, 0, 0, 0, 1, 0, 0, 0, 10, 0, 0, 0, 11, 0, 0, 0, 12}, header.TCPOptions{false, 0, 0, []header.SACKBlock{{1, 10}, {11, 12}}}},
-
- // Test malformed SACK option.
- {[]byte{header.TCPOptionSACK, 0}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionSACK, 8, 0, 0, 0, 1, 0, 0, 0, 10}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionSACK, 11, 0, 0, 0, 1, 0, 0, 0, 10, 0, 0, 0, 11, 0, 0, 0, 12}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionSACK, 17, 0, 0, 0, 1, 0, 0, 0, 10, 0, 0, 0, 11, 0, 0, 0, 12}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionSACK}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionSACK, 10}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionSACK, 10, 0, 0, 0, 1, 0, 0, 0}, header.TCPOptions{false, 0, 0, nil}},
-
- // Test Timestamp + SACK block parsing.
- {generateOptions(&tsOption{1, 1}, []header.SACKBlock{{1, 10}, {11, 12}}), header.TCPOptions{true, 1, 1, []header.SACKBlock{{1, 10}, {11, 12}}}},
- {generateOptions(&tsOption{1, 2}, []header.SACKBlock{{1, 10}, {11, 12}}), header.TCPOptions{true, 1, 2, []header.SACKBlock{{1, 10}, {11, 12}}}},
- {generateOptions(&tsOption{1, 3}, []header.SACKBlock{{1, 10}, {11, 12}, {13, 14}, {14, 15}, {15, 16}}), header.TCPOptions{true, 1, 3, []header.SACKBlock{{1, 10}, {11, 12}, {13, 14}, {14, 15}}}},
-
- // Test valid timestamp + malformed SACK block parsing.
- {[]byte{header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1, header.TCPOptionSACK}, header.TCPOptions{true, 1, 1, nil}},
- {[]byte{header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1, header.TCPOptionSACK, 10}, header.TCPOptions{true, 1, 1, nil}},
- {[]byte{header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1, header.TCPOptionSACK, 10, 0, 0, 0}, header.TCPOptions{true, 1, 1, nil}},
- {[]byte{header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1, header.TCPOptionSACK, 11, 0, 0, 0, 1, 0, 0, 0, 1}, header.TCPOptions{true, 1, 1, nil}},
- {[]byte{header.TCPOptionSACK, header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1}, header.TCPOptions{false, 0, 0, nil}},
- {[]byte{header.TCPOptionSACK, 10, header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1}, header.TCPOptions{false, 0, 0, []header.SACKBlock{{134873088, 65536}}}},
- {[]byte{header.TCPOptionSACK, 10, 0, 0, 0, header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1}, header.TCPOptions{false, 0, 0, []header.SACKBlock{{8, 167772160}}}},
- {[]byte{header.TCPOptionSACK, 11, 0, 0, 0, 1, 0, 0, 0, 1, header.TCPOptionTS, 10, 0, 0, 0, 1, 0, 0, 0, 1}, header.TCPOptions{false, 0, 0, nil}},
- }
- for _, tc := range testCases {
- if got, want := header.ParseTCPOptions(tc.b), tc.want; !reflect.DeepEqual(got, want) {
- t.Errorf("ParseTCPOptions(%v) = %v, want: %v", tc.b, got, tc.want)
- }
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 13:26:50 +0000