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flight4handler_test.go
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// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT
package dtls
import (
"context"
"crypto/tls"
"errors"
"testing"
"time"
"github.com/pion/dtls/v3/internal/ciphersuite"
"github.com/pion/dtls/v3/pkg/crypto/elliptic"
"github.com/pion/dtls/v3/pkg/crypto/selfsign"
"github.com/pion/dtls/v3/pkg/crypto/signaturehash"
"github.com/pion/dtls/v3/pkg/protocol/alert"
"github.com/pion/dtls/v3/pkg/protocol/handshake"
"github.com/pion/transport/v3/test"
)
type flight4TestMockFlightConn struct{}
var errHookCertReqFailed = errors.New("hook failed to modify SignatureHashAlgorithms")
func (f *flight4TestMockFlightConn) notify(context.Context, alert.Level, alert.Description) error {
return nil
}
func (f *flight4TestMockFlightConn) writePackets(context.Context, []*packet) error { return nil }
func (f *flight4TestMockFlightConn) recvHandshake() <-chan recvHandshakeState { return nil }
func (f *flight4TestMockFlightConn) setLocalEpoch(uint16) {}
func (f *flight4TestMockFlightConn) handleQueuedPackets(context.Context) error { return nil }
func (f *flight4TestMockFlightConn) sessionKey() []byte { return nil }
type flight4TestMockCipherSuite struct {
ciphersuite.TLSEcdheEcdsaWithAes128GcmSha256
t *testing.T
}
func (f *flight4TestMockCipherSuite) IsInitialized() bool {
f.t.Fatal("IsInitialized called with Certificate but not CertificateVerify")
return true
}
// Assert that if a Client sends a certificate they
// must also send a CertificateVerify message.
// The flight4handler must not interact with the CipherSuite
// if the CertificateVerify is missing.
func TestFlight4_Process_CertificateVerify(t *testing.T) {
// Limit runtime in case of deadlocks
lim := test.TimeOut(5 * time.Second)
defer lim.Stop()
// Check for leaking routines
report := test.CheckRoutines(t)
defer report()
mockConn := &flight4TestMockFlightConn{}
state := &State{
cipherSuite: &flight4TestMockCipherSuite{t: t},
}
cache := newHandshakeCache()
cfg := &handshakeConfig{}
rawCertificate := []byte{
0x0b, 0x00, 0x01, 0x9b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x9b, 0x00, 0x01, 0x98, 0x00, 0x01, 0x95, 0x30, 0x82,
0x01, 0x91, 0x30, 0x82, 0x01, 0x38, 0xa0, 0x03, 0x02, 0x01,
0x02, 0x02, 0x11, 0x01, 0x65, 0x03, 0x3f, 0x4d, 0x0b, 0x9a,
0x62, 0x91, 0xdb, 0x4d, 0x28, 0x2c, 0x1f, 0xd6, 0x73, 0x32,
0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04,
0x03, 0x02, 0x30, 0x00, 0x30, 0x1e, 0x17, 0x0d, 0x32, 0x32,
0x30, 0x35, 0x31, 0x35, 0x31, 0x38, 0x34, 0x33, 0x35, 0x35,
0x5a, 0x17, 0x0d, 0x32, 0x32, 0x30, 0x36, 0x31, 0x35, 0x31,
0x38, 0x34, 0x33, 0x35, 0x35, 0x5a, 0x30, 0x00, 0x30, 0x59,
0x30, 0x13, 0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02,
0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01,
0x07, 0x03, 0x42, 0x00, 0x04, 0xc3, 0xb7, 0x13, 0x1a, 0x0a,
0xfc, 0xd0, 0x82, 0xf8, 0x94, 0x5e, 0xc0, 0x77, 0x07, 0x81,
0x28, 0xc9, 0xcb, 0x08, 0x84, 0x50, 0x6b, 0xf0, 0x22, 0xe8,
0x79, 0xb9, 0x15, 0x33, 0xc4, 0x56, 0xa1, 0xd3, 0x1b, 0x24,
0xe3, 0x61, 0xbd, 0x4d, 0x65, 0x80, 0x6b, 0x5d, 0x96, 0x48,
0xa2, 0x44, 0x9e, 0xce, 0xe8, 0x65, 0xd6, 0x3c, 0xe0, 0x9b,
0x6b, 0xa1, 0x36, 0x34, 0xb2, 0x39, 0xe2, 0x03, 0x00, 0xa3,
0x81, 0x92, 0x30, 0x81, 0x8f, 0x30, 0x0e, 0x06, 0x03, 0x55,
0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x02,
0xa4, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x25, 0x04, 0x16,
0x30, 0x14, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07,
0x03, 0x02, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07,
0x03, 0x01, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01,
0x01, 0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0xff, 0x30,
0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14,
0xb1, 0x1a, 0xe3, 0xeb, 0x6f, 0x7c, 0xc3, 0x8f, 0xba, 0x6f,
0x1c, 0xe8, 0xf0, 0x23, 0x08, 0x50, 0x8d, 0x3c, 0xea, 0x31,
0x30, 0x2e, 0x06, 0x03, 0x55, 0x1d, 0x11, 0x01, 0x01, 0xff,
0x04, 0x24, 0x30, 0x22, 0x82, 0x20, 0x30, 0x30, 0x30, 0x30,
0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x0a,
0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02,
0x03, 0x47, 0x00, 0x30, 0x44, 0x02, 0x20, 0x06, 0x31, 0x43,
0xac, 0x03, 0x45, 0x79, 0x3c, 0xd7, 0x5f, 0x6e, 0x6a, 0xf8,
0x0e, 0xfd, 0x35, 0x49, 0xee, 0x1b, 0xbc, 0x47, 0xce, 0xe3,
0x39, 0xec, 0xe4, 0x62, 0xe1, 0x30, 0x1a, 0xa1, 0x89, 0x02,
0x20, 0x35, 0xcd, 0x7a, 0x15, 0x68, 0x09, 0x50, 0x49, 0x9e,
0x3e, 0x05, 0xd7, 0xc2, 0x69, 0x3f, 0x9c, 0x0c, 0x98, 0x92,
0x65, 0xec, 0xae, 0x44, 0xfe, 0xe5, 0x68, 0xb8, 0x09, 0x78,
0x7f, 0x6b, 0x77,
}
rawClientKeyExchange := []byte{
0x10, 0x00, 0x00, 0x21, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x21, 0x20, 0x96, 0xed, 0x0c, 0xee, 0xf3, 0x11, 0xb1,
0x9d, 0x8b, 0x1c, 0x02, 0x7f, 0x06, 0x7c, 0x57, 0x7a, 0x14,
0xa6, 0x41, 0xde, 0x63, 0x57, 0x9e, 0xcd, 0x34, 0x54, 0xba,
0x37, 0x4d, 0x34, 0x15, 0x18,
}
cache.push(rawCertificate, 0, 0, handshake.TypeCertificate, true)
cache.push(rawClientKeyExchange, 0, 1, handshake.TypeClientKeyExchange, true)
if _, _, err := flight4Parse(context.TODO(), mockConn, state, cache, cfg); err != nil {
t.Fatal(err)
}
}
func TestFlight4_CertificateRequestHook(t *testing.T) {
// Limit runtime in case of deadlocks
lim := test.TimeOut(5 * time.Second)
defer lim.Stop()
// Check for leaking routines
report := test.CheckRoutines(t)
defer report()
localKeypair, err := elliptic.GenerateKeypair(elliptic.P256)
if err != nil {
t.Fatal(err)
}
mockConn := &flight4TestMockFlightConn{}
state := &State{
cipherSuite: &flight4TestMockCipherSuite{t: t},
localKeypair: localKeypair,
}
cert, err := selfsign.GenerateSelfSignedWithDNS("localhost")
if err != nil {
t.Fatal(err)
}
cfg := &handshakeConfig{
localCertificates: []tls.Certificate{cert},
localSignatureSchemes: signaturehash.Algorithms(),
clientAuth: 1,
certificateRequestMessageHook: func(mcr handshake.MessageCertificateRequest) handshake.Message {
mcr.SignatureHashAlgorithms = []signaturehash.Algorithm{}
return &mcr
},
}
pkts, _, err := flight4Generate(mockConn, state, nil, cfg)
if err != nil {
t.Fatal(err)
}
for _, p := range pkts {
if h, ok := p.record.Content.(*handshake.Handshake); ok { //nolint:nestif
if h.Message.Type() == handshake.TypeCertificateRequest {
mcr := &handshake.MessageCertificateRequest{}
msg, err := h.Message.Marshal()
if err != nil {
t.Fatal(err)
}
err = mcr.Unmarshal(msg)
if err != nil {
t.Fatal(err)
}
if len(mcr.SignatureHashAlgorithms) == 0 {
return
}
}
}
}
t.Fatal(errHookCertReqFailed)
}