/usr/share/gocode/src/github.com/vishvananda/netlink/xfrm_state_test.go is in golang-github-vishvananda-netlink-dev 0.0~git20170407.0.1e86b2b-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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package netlink
import (
"bytes"
"encoding/hex"
"net"
"testing"
)
func TestXfrmStateAddGetDel(t *testing.T) {
for _, s := range []*XfrmState{getBaseState(), getAeadState()} {
testXfrmStateAddGetDel(t, s)
}
}
func testXfrmStateAddGetDel(t *testing.T, state *XfrmState) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
if err := XfrmStateAdd(state); err != nil {
t.Fatal(err)
}
states, err := XfrmStateList(FAMILY_ALL)
if err != nil {
t.Fatal(err)
}
if len(states) != 1 {
t.Fatal("State not added properly")
}
if !compareStates(state, &states[0]) {
t.Fatalf("unexpected states returned")
}
// Get specific state
sa, err := XfrmStateGet(state)
if err != nil {
t.Fatal(err)
}
if !compareStates(state, sa) {
t.Fatalf("unexpected state returned")
}
if err = XfrmStateDel(state); err != nil {
t.Fatal(err)
}
states, err = XfrmStateList(FAMILY_ALL)
if err != nil {
t.Fatal(err)
}
if len(states) != 0 {
t.Fatal("State not removed properly")
}
if _, err := XfrmStateGet(state); err == nil {
t.Fatalf("Unexpected success")
}
}
func TestXfrmStateAllocSpi(t *testing.T) {
setUpNetlinkTest(t)()
state := getBaseState()
state.Spi = 0
state.Auth = nil
state.Crypt = nil
rstate, err := XfrmStateAllocSpi(state)
if err != nil {
t.Fatal(err)
}
if rstate.Spi == 0 {
t.Fatalf("SPI is not allocated")
}
rstate.Spi = 0
if !compareStates(state, rstate) {
t.Fatalf("State not properly allocated")
}
}
func TestXfrmStateFlush(t *testing.T) {
setUpNetlinkTest(t)()
state1 := getBaseState()
state2 := getBaseState()
state2.Src = net.ParseIP("127.1.0.1")
state2.Dst = net.ParseIP("127.1.0.2")
state2.Proto = XFRM_PROTO_AH
state2.Mode = XFRM_MODE_TUNNEL
state2.Spi = 20
state2.Mark = nil
state2.Crypt = nil
if err := XfrmStateAdd(state1); err != nil {
t.Fatal(err)
}
if err := XfrmStateAdd(state2); err != nil {
t.Fatal(err)
}
// flushing proto for which no state is present should return silently
if err := XfrmStateFlush(XFRM_PROTO_COMP); err != nil {
t.Fatal(err)
}
if err := XfrmStateFlush(XFRM_PROTO_AH); err != nil {
t.Fatal(err)
}
if _, err := XfrmStateGet(state2); err == nil {
t.Fatalf("Unexpected success")
}
if err := XfrmStateAdd(state2); err != nil {
t.Fatal(err)
}
if err := XfrmStateFlush(0); err != nil {
t.Fatal(err)
}
states, err := XfrmStateList(FAMILY_ALL)
if err != nil {
t.Fatal(err)
}
if len(states) != 0 {
t.Fatal("State not flushed properly")
}
}
func TestXfrmStateUpdateLimits(t *testing.T) {
setUpNetlinkTest(t)()
// Program state with limits
state := getBaseState()
state.Limits.TimeHard = 3600
state.Limits.TimeSoft = 60
state.Limits.PacketHard = 1000
state.Limits.PacketSoft = 50
state.Limits.ByteHard = 1000000
state.Limits.ByteSoft = 50000
state.Limits.TimeUseHard = 3000
state.Limits.TimeUseSoft = 1500
if err := XfrmStateAdd(state); err != nil {
t.Fatal(err)
}
// Verify limits
s, err := XfrmStateGet(state)
if err != nil {
t.Fatal(err)
}
if !compareLimits(state, s) {
t.Fatalf("Incorrect time hard/soft retrieved: %s", s.Print(true))
}
// Update limits
state.Limits.TimeHard = 1800
state.Limits.TimeSoft = 30
state.Limits.PacketHard = 500
state.Limits.PacketSoft = 25
state.Limits.ByteHard = 500000
state.Limits.ByteSoft = 25000
state.Limits.TimeUseHard = 2000
state.Limits.TimeUseSoft = 1000
if err := XfrmStateUpdate(state); err != nil {
t.Fatal(err)
}
// Verify new limits
s, err = XfrmStateGet(state)
if err != nil {
t.Fatal(err)
}
if s.Limits.TimeHard != 1800 || s.Limits.TimeSoft != 30 {
t.Fatalf("Incorrect time hard retrieved: (%d, %d)", s.Limits.TimeHard, s.Limits.TimeSoft)
}
}
func getBaseState() *XfrmState {
return &XfrmState{
// Force 4 byte notation for the IPv4 addresses
Src: net.ParseIP("127.0.0.1").To4(),
Dst: net.ParseIP("127.0.0.2").To4(),
Proto: XFRM_PROTO_ESP,
Mode: XFRM_MODE_TUNNEL,
Spi: 1,
Auth: &XfrmStateAlgo{
Name: "hmac(sha256)",
Key: []byte("abcdefghijklmnopqrstuvwzyzABCDEF"),
},
Crypt: &XfrmStateAlgo{
Name: "cbc(aes)",
Key: []byte("abcdefghijklmnopqrstuvwzyzABCDEF"),
},
Mark: &XfrmMark{
Value: 0x12340000,
Mask: 0xffff0000,
},
}
}
func getAeadState() *XfrmState {
// 128 key bits + 32 salt bits
k, _ := hex.DecodeString("d0562776bf0e75830ba3f7f8eb6c09b555aa1177")
return &XfrmState{
// Leave IPv4 addresses in Ipv4 in IPv6 notation
Src: net.ParseIP("192.168.1.1"),
Dst: net.ParseIP("192.168.2.2"),
Proto: XFRM_PROTO_ESP,
Mode: XFRM_MODE_TUNNEL,
Spi: 2,
Aead: &XfrmStateAlgo{
Name: "rfc4106(gcm(aes))",
Key: k,
ICVLen: 64,
},
}
}
func compareStates(a, b *XfrmState) bool {
if a == b {
return true
}
if a == nil || b == nil {
return false
}
return a.Src.Equal(b.Src) && a.Dst.Equal(b.Dst) &&
a.Mode == b.Mode && a.Spi == b.Spi && a.Proto == b.Proto &&
compareAlgo(a.Auth, b.Auth) &&
compareAlgo(a.Crypt, b.Crypt) &&
compareAlgo(a.Aead, b.Aead) &&
compareMarks(a.Mark, b.Mark)
}
func compareLimits(a, b *XfrmState) bool {
return a.Limits.TimeHard == b.Limits.TimeHard &&
a.Limits.TimeSoft == b.Limits.TimeSoft &&
a.Limits.PacketHard == b.Limits.PacketHard &&
a.Limits.PacketSoft == b.Limits.PacketSoft &&
a.Limits.ByteHard == b.Limits.ByteHard &&
a.Limits.ByteSoft == b.Limits.ByteSoft &&
a.Limits.TimeUseHard == b.Limits.TimeUseHard &&
a.Limits.TimeUseSoft == b.Limits.TimeUseSoft
}
func compareAlgo(a, b *XfrmStateAlgo) bool {
if a == b {
return true
}
if a == nil || b == nil {
return false
}
return a.Name == b.Name && bytes.Equal(a.Key, b.Key) &&
(a.TruncateLen == 0 || a.TruncateLen == b.TruncateLen) &&
(a.ICVLen == 0 || a.ICVLen == b.ICVLen)
}
func compareMarks(a, b *XfrmMark) bool {
if a == b {
return true
}
if a == nil || b == nil {
return false
}
return a.Value == b.Value && a.Mask == b.Mask
}
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