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-rw-r--r--pkg/tcpip/header/BUILD41
-rwxr-xr-xpkg/tcpip/header/header_state_autogen.go42
-rw-r--r--pkg/tcpip/header/ipversion_test.go67
-rw-r--r--pkg/tcpip/header/tcp_test.go148
4 files changed, 42 insertions, 256 deletions
diff --git a/pkg/tcpip/header/BUILD b/pkg/tcpip/header/BUILD
deleted file mode 100644
index 76ef02f13..000000000
--- a/pkg/tcpip/header/BUILD
+++ /dev/null
@@ -1,41 +0,0 @@
-package(licenses = ["notice"])
-
-load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
-
-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",
- "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_test",
- size = "small",
- srcs = [
- "ipversion_test.go",
- "tcp_test.go",
- ],
- deps = [
- ":header",
- ],
-)
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/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 2024-11-02 21:38:30 +0000