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// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT
package dtls
import (
"testing"
"github.com/pion/dtls/v3/internal/ciphersuite"
"github.com/pion/dtls/v3/pkg/protocol/handshake"
"github.com/stretchr/testify/assert"
)
func TestHandshakeCacheSinglePush(t *testing.T) {
for _, test := range []struct {
Name string
Rule []handshakeCachePullRule
Input []handshakeCacheItem
Expected []byte
}{
{
Name: "Single Push",
Input: []handshakeCacheItem{
{0, true, 0, 0, []byte{0x00}},
},
Rule: []handshakeCachePullRule{
{0, 0, true, false},
},
Expected: []byte{0x00},
},
{
Name: "Multi Push",
Input: []handshakeCacheItem{
{0, true, 0, 0, []byte{0x00}},
{1, true, 0, 1, []byte{0x01}},
{2, true, 0, 2, []byte{0x02}},
},
Rule: []handshakeCachePullRule{
{0, 0, true, false},
{1, 0, true, false},
{2, 0, true, false},
},
Expected: []byte{0x00, 0x01, 0x02},
},
{
Name: "Multi Push, Rules set order",
Input: []handshakeCacheItem{
{2, true, 0, 2, []byte{0x02}},
{0, true, 0, 0, []byte{0x00}},
{1, true, 0, 1, []byte{0x01}},
},
Rule: []handshakeCachePullRule{
{0, 0, true, false},
{1, 0, true, false},
{2, 0, true, false},
},
Expected: []byte{0x00, 0x01, 0x02},
},
{
Name: "Multi Push, Dupe Seqnum",
Input: []handshakeCacheItem{
{0, true, 0, 0, []byte{0x00}},
{1, true, 0, 1, []byte{0x01}},
{1, true, 0, 1, []byte{0x01}},
},
Rule: []handshakeCachePullRule{
{0, 0, true, false},
{1, 0, true, false},
},
Expected: []byte{0x00, 0x01},
},
{
Name: "Multi Push, Dupe Seqnum Client/Server",
Input: []handshakeCacheItem{
{0, true, 0, 0, []byte{0x00}},
{1, true, 0, 1, []byte{0x01}},
{1, false, 0, 1, []byte{0x02}},
},
Rule: []handshakeCachePullRule{
{0, 0, true, false},
{1, 0, true, false},
{1, 0, false, false},
},
Expected: []byte{0x00, 0x01, 0x02},
},
{
Name: "Multi Push, Dupe Seqnum with Unique HandshakeType",
Input: []handshakeCacheItem{
{1, true, 0, 0, []byte{0x00}},
{2, true, 0, 1, []byte{0x01}},
{3, false, 0, 0, []byte{0x02}},
},
Rule: []handshakeCachePullRule{
{1, 0, true, false},
{2, 0, true, false},
{3, 0, false, false},
},
Expected: []byte{0x00, 0x01, 0x02},
},
{
Name: "Multi Push, Wrong epoch",
Input: []handshakeCacheItem{
{1, true, 0, 0, []byte{0x00}},
{2, true, 1, 1, []byte{0x01}},
{2, true, 0, 2, []byte{0x11}},
{3, false, 0, 0, []byte{0x02}},
{3, false, 1, 0, []byte{0x12}},
{3, false, 2, 0, []byte{0x12}},
},
Rule: []handshakeCachePullRule{
{1, 0, true, false},
{2, 1, true, false},
{3, 0, false, false},
},
Expected: []byte{0x00, 0x01, 0x02},
},
} {
h := newHandshakeCache()
for _, i := range test.Input {
h.push(i.data, i.epoch, i.messageSequence, i.typ, i.isClient)
}
verifyData := h.pullAndMerge(test.Rule...)
assert.Equal(t, test.Expected, verifyData)
}
}
func TestHandshakeCacheSessionHash(t *testing.T) {
for _, test := range []struct {
Name string
Rule []handshakeCachePullRule
Input []handshakeCacheItem
Expected []byte
}{
{
Name: "Standard Handshake",
Input: []handshakeCacheItem{
{handshake.TypeClientHello, true, 0, 0, []byte{0x00}},
{handshake.TypeServerHello, false, 0, 1, []byte{0x01}},
{handshake.TypeCertificate, false, 0, 2, []byte{0x02}},
{handshake.TypeServerKeyExchange, false, 0, 3, []byte{0x03}},
{handshake.TypeServerHelloDone, false, 0, 4, []byte{0x04}},
{handshake.TypeClientKeyExchange, true, 0, 5, []byte{0x05}},
},
Expected: []byte{
0x17, 0xe8, 0x8d, 0xb1, 0x87, 0xaf, 0xd6, 0x2c, 0x16, 0xe5, 0xde, 0xbf, 0x3e, 0x65, 0x27, 0xcd,
0x00, 0x6b, 0xc0, 0x12, 0xbc, 0x90, 0xb5, 0x1a, 0x81, 0x0c, 0xd8, 0x0c, 0x2d, 0x51, 0x1f, 0x43,
},
},
{
Name: "Handshake With Client Cert Request",
Input: []handshakeCacheItem{
{handshake.TypeClientHello, true, 0, 0, []byte{0x00}},
{handshake.TypeServerHello, false, 0, 1, []byte{0x01}},
{handshake.TypeCertificate, false, 0, 2, []byte{0x02}},
{handshake.TypeServerKeyExchange, false, 0, 3, []byte{0x03}},
{handshake.TypeCertificateRequest, false, 0, 4, []byte{0x04}},
{handshake.TypeServerHelloDone, false, 0, 5, []byte{0x05}},
{handshake.TypeClientKeyExchange, true, 0, 6, []byte{0x06}},
},
Expected: []byte{
0x57, 0x35, 0x5a, 0xc3, 0x30, 0x3c, 0x14, 0x8f, 0x11, 0xae, 0xf7, 0xcb, 0x17, 0x94, 0x56, 0xb9,
0x23, 0x2c, 0xde, 0x33, 0xa8, 0x18, 0xdf, 0xda, 0x2c, 0x2f, 0xcb, 0x93, 0x25, 0x74, 0x9a, 0x6b,
},
},
{
Name: "Handshake Ignores after ClientKeyExchange",
Input: []handshakeCacheItem{
{handshake.TypeClientHello, true, 0, 0, []byte{0x00}},
{handshake.TypeServerHello, false, 0, 1, []byte{0x01}},
{handshake.TypeCertificate, false, 0, 2, []byte{0x02}},
{handshake.TypeServerKeyExchange, false, 0, 3, []byte{0x03}},
{handshake.TypeCertificateRequest, false, 0, 4, []byte{0x04}},
{handshake.TypeServerHelloDone, false, 0, 5, []byte{0x05}},
{handshake.TypeClientKeyExchange, true, 0, 6, []byte{0x06}},
{handshake.TypeCertificateVerify, true, 0, 7, []byte{0x07}},
{handshake.TypeFinished, true, 1, 7, []byte{0x08}},
{handshake.TypeFinished, false, 1, 7, []byte{0x09}},
},
Expected: []byte{
0x57, 0x35, 0x5a, 0xc3, 0x30, 0x3c, 0x14, 0x8f, 0x11, 0xae, 0xf7, 0xcb, 0x17, 0x94, 0x56, 0xb9,
0x23, 0x2c, 0xde, 0x33, 0xa8, 0x18, 0xdf, 0xda, 0x2c, 0x2f, 0xcb, 0x93, 0x25, 0x74, 0x9a, 0x6b,
},
},
{
Name: "Handshake Ignores wrong epoch",
Input: []handshakeCacheItem{
{handshake.TypeClientHello, true, 0, 0, []byte{0x00}},
{handshake.TypeServerHello, false, 0, 1, []byte{0x01}},
{handshake.TypeCertificate, false, 0, 2, []byte{0x02}},
{handshake.TypeServerKeyExchange, false, 0, 3, []byte{0x03}},
{handshake.TypeCertificateRequest, false, 0, 4, []byte{0x04}},
{handshake.TypeServerHelloDone, false, 0, 5, []byte{0x05}},
{handshake.TypeClientKeyExchange, true, 0, 6, []byte{0x06}},
{handshake.TypeCertificateVerify, true, 0, 7, []byte{0x07}},
{handshake.TypeFinished, true, 0, 7, []byte{0xf0}},
{handshake.TypeFinished, false, 0, 7, []byte{0xf1}},
{handshake.TypeFinished, true, 1, 7, []byte{0x08}},
{handshake.TypeFinished, false, 1, 7, []byte{0x09}},
{handshake.TypeFinished, true, 0, 7, []byte{0xf0}},
{handshake.TypeFinished, false, 0, 7, []byte{0xf1}},
},
Expected: []byte{
0x57, 0x35, 0x5a, 0xc3, 0x30, 0x3c, 0x14, 0x8f, 0x11, 0xae, 0xf7, 0xcb, 0x17, 0x94, 0x56, 0xb9,
0x23, 0x2c, 0xde, 0x33, 0xa8, 0x18, 0xdf, 0xda, 0x2c, 0x2f, 0xcb, 0x93, 0x25, 0x74, 0x9a, 0x6b,
},
},
} {
h := newHandshakeCache()
for _, i := range test.Input {
h.push(i.data, i.epoch, i.messageSequence, i.typ, i.isClient)
}
cipherSuite := ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256{}
verifyData, err := h.sessionHash(cipherSuite.HashFunc(), 0)
assert.NoError(t, err)
assert.Equal(t, test.Expected, verifyData, "handshakeCacheSessionHash")
}
}
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