13 _ "github.com/anacrolix/envpprof"
14 "github.com/bradfitz/iter"
15 "github.com/stretchr/testify/assert"
16 "github.com/stretchr/testify/require"
19 func sliceIter(skeys [][]byte) SecretKeyIter {
20 return func(callback func([]byte) bool) {
21 for _, sk := range skeys {
29 func TestReadUntil(t *testing.T) {
30 test := func(data, until string, leftover int, expectedErr error) {
31 r := bytes.NewReader([]byte(data))
32 err := readUntil(r, []byte(until))
33 if err != expectedErr {
36 if r.Len() != leftover {
40 test("feakjfeafeafegbaabc00", "abc", 2, nil)
41 test("feakjfeafeafegbaadc00", "abc", 0, io.EOF)
44 func TestSuffixMatchLen(t *testing.T) {
45 test := func(a, b string, expected int) {
46 actual := suffixMatchLen([]byte(a), []byte(b))
47 if actual != expected {
48 t.Fatalf("expected %d, got %d for %q and %q", expected, actual, a, b)
51 test("hello", "world", 0)
52 test("hello", "lo", 2)
53 test("hello", "llo", 3)
54 test("hello", "hell", 0)
55 test("hello", "helloooo!", 5)
56 test("hello", "lol!", 2)
57 test("hello", "mondo", 0)
58 test("mongo", "webscale", 0)
59 test("sup", "person", 1)
62 func handshakeTest(t testing.TB, ia []byte, aData, bData string, cryptoProvides CryptoMethod, cryptoSelect CryptoSelector) {
64 wg := sync.WaitGroup{}
68 a, cm, err := InitiateHandshake(a, []byte("yep"), ia, cryptoProvides)
69 require.NoError(t, err)
70 assert.Equal(t, cryptoSelect(cryptoProvides), cm)
71 go a.Write([]byte(aData))
74 n, _ := a.Read(msg[:])
78 // t.Log(string(msg[:n]))
82 res := ReceiveHandshakeEx(b, sliceIter([][]byte{[]byte("nope"), []byte("yep"), []byte("maybe")}), cryptoSelect)
83 require.NoError(t, res.error)
84 assert.EqualValues(t, "yep", res.SecretKey)
86 assert.Equal(t, cryptoSelect(cryptoProvides), res.CryptoMethod)
87 go b.Write([]byte(bData))
88 // Need to be exact here, as there are several reads, and net.Pipe is most synchronous.
89 msg := make([]byte, len(ia)+len(aData))
90 n, _ := io.ReadFull(b, msg)
94 // t.Log(string(msg[:n]))
101 func allHandshakeTests(t testing.TB, provides CryptoMethod, selector CryptoSelector) {
102 handshakeTest(t, []byte("jump the gun, "), "hello world", "yo dawg", provides, selector)
103 handshakeTest(t, nil, "hello world", "yo dawg", provides, selector)
104 handshakeTest(t, []byte{}, "hello world", "yo dawg", provides, selector)
107 func TestHandshakeDefault(t *testing.T) {
108 allHandshakeTests(t, AllSupportedCrypto, DefaultCryptoSelector)
109 t.Logf("crypto provides encountered: %s", cryptoProvidesCount)
112 func TestHandshakeSelectPlaintext(t *testing.T) {
113 allHandshakeTests(t, AllSupportedCrypto, func(CryptoMethod) CryptoMethod { return CryptoMethodPlaintext })
116 func BenchmarkHandshakeDefault(b *testing.B) {
117 for range iter.N(b.N) {
118 allHandshakeTests(b, AllSupportedCrypto, DefaultCryptoSelector)
122 type trackReader struct {
127 func (tr *trackReader) Read(b []byte) (n int, err error) {
128 n, err = tr.r.Read(b)
133 func TestReceiveRandomData(t *testing.T) {
134 tr := trackReader{rand.Reader, 0}
135 _, _, err := ReceiveHandshake(readWriter{&tr, ioutil.Discard}, nil, DefaultCryptoSelector)
137 require.Error(t, err)
138 // Establishing S, and then reading the maximum padding for giving up on
140 require.EqualValues(t, 96+532, tr.n)
143 func fillRand(t testing.TB, bs ...[]byte) {
144 for _, b := range bs {
145 _, err := rand.Read(b)
146 require.NoError(t, err)
150 func readAndWrite(rw io.ReadWriter, r []byte, w []byte) error {
151 var wg sync.WaitGroup
156 _, wErr = rw.Write(w)
158 _, err := io.ReadFull(rw, r)
166 func benchmarkStream(t *testing.B, crypto CryptoMethod) {
167 ia := make([]byte, 0x1000)
168 a := make([]byte, 1<<20)
169 b := make([]byte, 1<<20)
170 fillRand(t, ia, a, b)
172 t.SetBytes(int64(len(ia) + len(a) + len(b)))
174 for range iter.N(t.N) {
176 ar := make([]byte, len(b))
177 br := make([]byte, len(ia)+len(a))
179 var wg sync.WaitGroup
184 rw, _, err := InitiateHandshake(ac, []byte("cats"), ia, crypto)
185 require.NoError(t, err)
186 require.NoError(t, readAndWrite(rw, ar, a))
190 rw, _, err := ReceiveHandshake(bc, sliceIter([][]byte{[]byte("cats")}), func(CryptoMethod) CryptoMethod { return crypto })
191 require.NoError(t, err)
192 require.NoError(t, readAndWrite(rw, br, b))
196 if !bytes.Equal(ar, b) {
197 t.Fatalf("A read the wrong bytes")
199 if !bytes.Equal(br[:len(ia)], ia) {
200 t.Fatalf("B read the wrong IA")
202 if !bytes.Equal(br[len(ia):], a) {
203 t.Fatalf("B read the wrong A")
205 // require.Equal(t, b, ar)
206 // require.Equal(t, ia, br[:len(ia)])
207 // require.Equal(t, a, br[len(ia):])
211 func BenchmarkStreamRC4(t *testing.B) {
212 benchmarkStream(t, CryptoMethodRC4)
215 func BenchmarkStreamPlaintext(t *testing.B) {
216 benchmarkStream(t, CryptoMethodPlaintext)
219 func BenchmarkPipeRC4(t *testing.B) {
220 key := make([]byte, 20)
221 n, _ := rand.Read(key)
222 require.Equal(t, len(key), n)
224 c, err := rc4.NewCipher(key)
225 require.NoError(t, err)
230 c, err = rc4.NewCipher(key)
231 require.NoError(t, err)
236 a := make([]byte, 0x1000)
237 n, _ = io.ReadFull(rand.Reader, a)
238 require.Equal(t, len(a), n)
239 b := make([]byte, len(a))
240 t.SetBytes(int64(len(a)))
242 for range iter.N(t.N) {
251 if !bytes.Equal(a, b) {
257 func BenchmarkSkeysReceive(b *testing.B) {
259 for range iter.N(100000) {
260 skeys = append(skeys, make([]byte, 20))
262 fillRand(b, skeys...)
263 initSkey := skeys[len(skeys)/2]
267 for range iter.N(b.N) {
268 initiator, receiver := net.Pipe()
270 _, _, err := InitiateHandshake(initiator, initSkey, nil, AllSupportedCrypto)
275 res := ReceiveHandshakeEx(receiver, sliceIter(skeys), DefaultCryptoSelector)
276 if res.error != nil {