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RTC: Remove DTLS utests, cover by regression test

This commit is contained in:
winlin 2021-05-14 18:14:00 +08:00
parent f7b32252b0
commit ab0979a4ea

View file

@ -563,619 +563,6 @@ VOID TEST(KernelRTCTest, StringDumpHexTest)
}
}
extern SSL_CTX* srs_build_dtls_ctx(SrsDtlsVersion version, std::string role);
class MockDtls
{
public:
SSL_CTX* dtls_ctx;
SSL* dtls;
BIO* bio_in;
BIO* bio_out;
ISrsDtlsCallback* callback_;
bool handshake_done_for_us;
SrsDtlsRole role_;
SrsDtlsVersion version_;
public:
MockDtls(ISrsDtlsCallback* callback);
virtual ~MockDtls();
srs_error_t initialize(std::string role, std::string version);
srs_error_t start_active_handshake();
srs_error_t on_dtls(char* data, int nb_data);
srs_error_t do_handshake();
};
MockDtls::MockDtls(ISrsDtlsCallback* callback)
{
dtls_ctx = NULL;
dtls = NULL;
callback_ = callback;
handshake_done_for_us = false;
role_ = SrsDtlsRoleServer;
version_ = SrsDtlsVersionAuto;
}
MockDtls::~MockDtls()
{
if (dtls_ctx) {
SSL_CTX_free(dtls_ctx);
dtls_ctx = NULL;
}
if (dtls) {
SSL_free(dtls);
dtls = NULL;
}
}
srs_error_t MockDtls::initialize(std::string role, std::string version)
{
role_ = SrsDtlsRoleServer;
if (role == "active") {
role_ = SrsDtlsRoleClient;
}
if (version == "dtls1.0") {
version_ = SrsDtlsVersion1_0;
} else if (version == "dtls1.2") {
version_ = SrsDtlsVersion1_2;
} else {
version_ = SrsDtlsVersionAuto;
}
dtls_ctx = srs_build_dtls_ctx(version_, role);
dtls = SSL_new(dtls_ctx);
srs_assert(dtls);
if (role_ == SrsDtlsRoleClient) {
SSL_set_connect_state(dtls);
SSL_set_max_send_fragment(dtls, kRtpPacketSize);
} else {
SSL_set_accept_state(dtls);
}
bio_in = BIO_new(BIO_s_mem());
srs_assert(bio_in);
bio_out = BIO_new(BIO_s_mem());
srs_assert(bio_out);
SSL_set_bio(dtls, bio_in, bio_out);
return srs_success;
}
srs_error_t MockDtls::start_active_handshake()
{
if (role_ == SrsDtlsRoleClient) {
return do_handshake();
}
return srs_success;
}
srs_error_t MockDtls::on_dtls(char* data, int nb_data)
{
srs_error_t err = srs_success;
srs_assert(BIO_reset(bio_in) == 1);
srs_assert(BIO_reset(bio_out) == 1);
srs_assert(BIO_write(bio_in, data, nb_data) > 0);
if ((err = do_handshake()) != srs_success) {
return srs_error_wrap(err, "do handshake");
}
while (BIO_ctrl_pending(bio_in) > 0) {
char buf[8092];
int nb = SSL_read(dtls, buf, sizeof(buf));
if (nb <= 0) {
continue;
}
if ((err = callback_->on_dtls_application_data(buf, nb)) != srs_success) {
return srs_error_wrap(err, "on DTLS data, size=%u", nb);
}
}
return err;
}
srs_error_t MockDtls::do_handshake()
{
srs_error_t err = srs_success;
int r0 = SSL_do_handshake(dtls);
int r1 = SSL_get_error(dtls, r0);
if (r0 < 0 && (r1 != SSL_ERROR_NONE && r1 != SSL_ERROR_WANT_READ && r1 != SSL_ERROR_WANT_WRITE)) {
return srs_error_new(ERROR_RTC_DTLS, "handshake r0=%d, r1=%d", r0, r1);
}
if (r1 == SSL_ERROR_NONE) {
handshake_done_for_us = true;
}
uint8_t* data = NULL;
int size = BIO_get_mem_data(bio_out, &data);
if (size > 0 && (err = callback_->write_dtls_data(data, size)) != srs_success) {
return srs_error_wrap(err, "dtls send size=%u", size);
}
if (handshake_done_for_us) {
return callback_->on_dtls_handshake_done();
}
return err;
}
class MockDtlsCallback : public ISrsDtlsCallback, public ISrsCoroutineHandler
{
public:
SrsDtls* peer;
MockDtls* peer2;
SrsCoroutine* trd;
srs_error_t r0;
bool done;
std::vector<SrsSample> samples;
public:
int nn_client_hello_lost;
int nn_server_hello_lost;
int nn_certificate_lost;
int nn_new_session_lost;
int nn_change_cipher_lost;
public:
// client -> server
int nn_client_hello;
// server -> client
int nn_server_hello;
// client -> server
int nn_certificate;
// server -> client
int nn_new_session;
int nn_change_cipher;
public:
MockDtlsCallback();
virtual ~MockDtlsCallback();
virtual srs_error_t on_dtls_handshake_done();
virtual srs_error_t on_dtls_application_data(const char* data, const int len);
virtual srs_error_t write_dtls_data(void* data, int size);
virtual srs_error_t on_dtls_alert(std::string type, std::string desc);
virtual srs_error_t cycle();
};
MockDtlsCallback::MockDtlsCallback()
{
peer = NULL;
peer2 = NULL;
r0 = srs_success;
done = false;
trd = new SrsSTCoroutine("mock", this);
srs_assert(trd->start() == srs_success);
nn_client_hello_lost = 0;
nn_server_hello_lost = 0;
nn_certificate_lost = 0;
nn_new_session_lost = 0;
nn_change_cipher_lost = 0;
nn_client_hello = 0;
nn_server_hello = 0;
nn_certificate = 0;
nn_new_session = 0;
nn_change_cipher = 0;
}
MockDtlsCallback::~MockDtlsCallback()
{
srs_freep(trd);
srs_freep(r0);
for (vector<SrsSample>::iterator it = samples.begin(); it != samples.end(); ++it) {
delete[] it->bytes;
}
}
srs_error_t MockDtlsCallback::on_dtls_handshake_done()
{
done = true;
return srs_success;
}
srs_error_t MockDtlsCallback::on_dtls_application_data(const char* data, const int len)
{
return srs_success;
}
srs_error_t MockDtlsCallback::write_dtls_data(void* data, int size)
{
int nn_lost = 0;
if (true) {
uint8_t content_type = 0;
if (size >= 1) {
content_type = (uint8_t)((uint8_t*)data)[0];
}
uint8_t handshake_type = 0;
if (size >= 14) {
handshake_type = (uint8_t)((uint8_t*)data)[13];
}
if (content_type == 22) {
if (handshake_type == 1) {
nn_lost = nn_client_hello_lost--;
nn_client_hello++;
} else if (handshake_type == 2) {
nn_lost = nn_server_hello_lost--;
nn_server_hello++;
} else if (handshake_type == 11) {
nn_lost = nn_certificate_lost--;
nn_certificate++;
} else if (handshake_type == 4) {
nn_lost = nn_new_session_lost--;
nn_new_session++;
}
} else if (content_type == 20) {
nn_lost = nn_change_cipher_lost--;
nn_change_cipher++;
}
}
// Simulate to drop packet.
if (nn_lost > 0) {
return srs_success;
}
// Send out it.
char* cp = new char[size];
memcpy(cp, data, size);
samples.push_back(SrsSample((char*)cp, size));
return srs_success;
}
srs_error_t MockDtlsCallback::on_dtls_alert(std::string type, std::string desc)
{
return srs_success;
}
srs_error_t MockDtlsCallback::cycle()
{
srs_error_t err = srs_success;
while (err == srs_success) {
if ((err = trd->pull()) != srs_success) {
break;
}
if (samples.empty()) {
srs_usleep(0);
continue;
}
SrsSample p = samples.at(0);
samples.erase(samples.begin());
if (peer) {
err = peer->on_dtls((char*)p.bytes, p.size);
} else if (peer2) {
err = peer2->on_dtls((char*)p.bytes, p.size);
}
srs_freepa(p.bytes);
}
// Copy it for utest to check it.
r0 = srs_error_copy(err);
return err;
}
// Wait for mock io to done, try to switch to coroutine many times.
void mock_wait_dtls_io_done(SrsDtlsImpl* client_impl, int count = 100, int interval = 0)
{
for (int i = 0; i < count; i++) {
if (client_impl) {
dynamic_cast<SrsDtlsClientImpl*>(client_impl)->reset_timer_ = true;
}
srs_usleep(interval * SRS_UTIME_MILLISECONDS);
}
}
// To avoid the crash when peer or peer2 is freed before io.
class MockBridgeDtlsIO
{
private:
MockDtlsCallback* io_;
public:
MockBridgeDtlsIO(MockDtlsCallback* io, SrsDtls* peer, MockDtls* peer2) {
io_ = io;
io->peer = peer;
io->peer2 = peer2;
}
virtual ~MockBridgeDtlsIO() {
io_->peer = NULL;
io_->peer2 = NULL;
}
};
VOID TEST(KernelRTCTest, DTLSClientARQTest)
{
srs_error_t err = srs_success;
// No ARQ, check the number of packets.
if (true) {
MockDtlsCallback cio; SrsDtls client(&cio);
MockDtlsCallback sio; SrsDtls server(&sio);
cio.peer = &server; sio.peer = &client;
HELPER_EXPECT_SUCCESS(client.initialize("active", "dtls1.0"));
HELPER_EXPECT_SUCCESS(server.initialize("passive", "dtls1.0"));
HELPER_EXPECT_SUCCESS(client.start_active_handshake());
mock_wait_dtls_io_done(client.impl, 15, 5);
EXPECT_TRUE(sio.r0 == srs_success);
EXPECT_TRUE(cio.r0 == srs_success);
EXPECT_TRUE(cio.done);
EXPECT_TRUE(sio.done);
EXPECT_EQ(1, cio.nn_client_hello);
EXPECT_EQ(1, sio.nn_server_hello);
EXPECT_EQ(1, cio.nn_certificate);
EXPECT_EQ(1, sio.nn_new_session);
EXPECT_EQ(0, sio.nn_change_cipher);
}
// ClientHello lost, client retransmit the ClientHello.
if (true) {
MockDtlsCallback cio; SrsDtls client(&cio);
MockDtlsCallback sio; SrsDtls server(&sio);
MockBridgeDtlsIO b0(&cio, &server, NULL); MockBridgeDtlsIO b1(&sio, &client, NULL);
HELPER_EXPECT_SUCCESS(client.initialize("active", "dtls1.0"));
HELPER_EXPECT_SUCCESS(server.initialize("passive", "dtls1.0"));
// Lost 2 packets, total packets should be 3.
// Note that only one server hello.
cio.nn_client_hello_lost = 1;
HELPER_EXPECT_SUCCESS(client.start_active_handshake());
mock_wait_dtls_io_done(client.impl, 15, 5);
EXPECT_TRUE(sio.r0 == srs_success);
EXPECT_TRUE(cio.r0 == srs_success);
EXPECT_TRUE(cio.done);
EXPECT_TRUE(sio.done);
EXPECT_EQ(2, cio.nn_client_hello);
EXPECT_EQ(1, sio.nn_server_hello);
EXPECT_EQ(1, cio.nn_certificate);
EXPECT_EQ(1, sio.nn_new_session);
EXPECT_EQ(0, sio.nn_change_cipher);
}
// Certificate lost, client retransmit the Certificate.
if (true) {
MockDtlsCallback cio; SrsDtls client(&cio);
MockDtlsCallback sio; SrsDtls server(&sio);
MockBridgeDtlsIO b0(&cio, &server, NULL); MockBridgeDtlsIO b1(&sio, &client, NULL);
HELPER_EXPECT_SUCCESS(client.initialize("active", "dtls1.0"));
HELPER_EXPECT_SUCCESS(server.initialize("passive", "dtls1.0"));
// Lost 2 packets, total packets should be 3.
// Note that only one server NewSessionTicket.
cio.nn_certificate_lost = 1;
HELPER_EXPECT_SUCCESS(client.start_active_handshake());
mock_wait_dtls_io_done(client.impl, 15, 5);
EXPECT_TRUE(sio.r0 == srs_success);
EXPECT_TRUE(cio.r0 == srs_success);
EXPECT_TRUE(cio.done);
EXPECT_TRUE(sio.done);
EXPECT_EQ(1, cio.nn_client_hello);
EXPECT_EQ(2, sio.nn_server_hello);
EXPECT_EQ(2, cio.nn_certificate);
EXPECT_EQ(0, sio.nn_new_session);
EXPECT_EQ(0, sio.nn_change_cipher);
}
}
VOID TEST(KernelRTCTest, DTLSServerARQTest)
{
srs_error_t err = srs_success;
// No ARQ, check the number of packets.
if (true) {
MockDtlsCallback cio; SrsDtls client(&cio);
MockDtlsCallback sio; SrsDtls server(&sio);
cio.peer = &server; sio.peer = &client;
HELPER_EXPECT_SUCCESS(client.initialize("active", "dtls1.0"));
HELPER_EXPECT_SUCCESS(server.initialize("passive", "dtls1.0"));
HELPER_EXPECT_SUCCESS(client.start_active_handshake());
mock_wait_dtls_io_done(client.impl, 15, 5);
EXPECT_TRUE(sio.r0 == srs_success);
EXPECT_TRUE(cio.r0 == srs_success);
EXPECT_TRUE(cio.done);
EXPECT_TRUE(sio.done);
EXPECT_EQ(1, cio.nn_client_hello);
EXPECT_EQ(1, sio.nn_server_hello);
EXPECT_EQ(1, cio.nn_certificate);
EXPECT_EQ(1, sio.nn_new_session);
EXPECT_EQ(0, sio.nn_change_cipher);
}
// ServerHello lost, client retransmit the ClientHello.
if (true) {
MockDtlsCallback cio; SrsDtls client(&cio);
MockDtlsCallback sio; SrsDtls server(&sio);
MockBridgeDtlsIO b0(&cio, &server, NULL); MockBridgeDtlsIO b1(&sio, &client, NULL);
HELPER_EXPECT_SUCCESS(client.initialize("active", "dtls1.0"));
HELPER_EXPECT_SUCCESS(server.initialize("passive", "dtls1.0"));
// Lost 2 packets, total packets should be 3.
sio.nn_server_hello_lost = 1;
HELPER_EXPECT_SUCCESS(client.start_active_handshake());
mock_wait_dtls_io_done(client.impl, 15, 5);
EXPECT_TRUE(sio.r0 == srs_success);
EXPECT_TRUE(cio.r0 == srs_success);
EXPECT_TRUE(cio.done);
EXPECT_TRUE(sio.done);
EXPECT_EQ(2, cio.nn_client_hello);
EXPECT_EQ(2, sio.nn_server_hello);
EXPECT_EQ(1, cio.nn_certificate);
EXPECT_EQ(1, sio.nn_new_session);
EXPECT_EQ(0, sio.nn_change_cipher);
}
// NewSessionTicket lost, client retransmit the Certificate.
if (true) {
MockDtlsCallback cio; SrsDtls client(&cio);
MockDtlsCallback sio; SrsDtls server(&sio);
MockBridgeDtlsIO b0(&cio, &server, NULL); MockBridgeDtlsIO b1(&sio, &client, NULL);
HELPER_EXPECT_SUCCESS(client.initialize("active", "dtls1.0"));
HELPER_EXPECT_SUCCESS(server.initialize("passive", "dtls1.0"));
// Lost 2 packets, total packets should be 3.
sio.nn_new_session_lost = 1;
HELPER_EXPECT_SUCCESS(client.start_active_handshake());
mock_wait_dtls_io_done(client.impl, 15, 5);
EXPECT_TRUE(sio.r0 == srs_success);
EXPECT_TRUE(cio.r0 == srs_success);
EXPECT_TRUE(cio.done);
EXPECT_TRUE(sio.done);
EXPECT_EQ(1, cio.nn_client_hello);
EXPECT_EQ(1, sio.nn_server_hello);
EXPECT_EQ(2, cio.nn_certificate);
EXPECT_EQ(2, sio.nn_new_session);
EXPECT_EQ(0, sio.nn_change_cipher);
}
}
struct DTLSFlowCase
{
int id;
string ClientVersion;
string ServerVersion;
bool ClientDone;
bool ServerDone;
bool ClientError;
bool ServerError;
};
std::ostream& operator<< (std::ostream& stream, const DTLSFlowCase& c)
{
stream << "Case #" << c.id
<< ", client(" << c.ClientVersion << ",done=" << c.ClientDone << ",err=" << c.ClientError << ")"
<< ", server(" << c.ServerVersion << ",done=" << c.ServerDone << ",err=" << c.ServerError << ")";
return stream;
}
VOID TEST(KernelRTCTest, DTLSClientFlowTest)
{
srs_error_t err = srs_success;
DTLSFlowCase cases[] = {
// OK, Client, Server: DTLS v1.0
{0, "dtls1.0", "dtls1.0", true, true, false, false},
// OK, Client, Server: DTLS v1.2
{1, "dtls1.2", "dtls1.2", true, true, false, false},
// OK, Client: DTLS v1.0, Server: DTLS auto(v1.0 or v1.2).
{2, "dtls1.0", "auto", true, true, false, false},
// OK, Client: DTLS v1.2, Server: DTLS auto(v1.0 or v1.2).
{3, "dtls1.2", "auto", true, true, false, false},
// OK, Client: DTLS auto(v1.0 or v1.2), Server: DTLS v1.0
{4, "auto", "dtls1.0", true, true, false, false},
// OK, Client: DTLS auto(v1.0 or v1.2), Server: DTLS v1.0
{5, "auto", "dtls1.2", true, true, false, false},
// OK?, Client: DTLS v1.0, Server: DTLS v1.2
{6, "dtls1.0", "dtls1.2", true, true, false, false},
// OK?, Client: DTLS v1.2, Server: DTLS v1.0
{7, "dtls1.2", "dtls1.0", true, true, false, false},
};
for (int i = 0; i < (int)(sizeof(cases) / sizeof(DTLSFlowCase)); i++) {
DTLSFlowCase c = cases[i];
MockDtlsCallback cio; SrsDtls client(&cio);
MockDtlsCallback sio; MockDtls server(&sio);
MockBridgeDtlsIO b0(&cio, NULL, &server); MockBridgeDtlsIO b1(&sio, &client, NULL);
HELPER_EXPECT_SUCCESS(client.initialize("active", c.ClientVersion)) << c;
HELPER_EXPECT_SUCCESS(server.initialize("passive", c.ServerVersion)) << c;
HELPER_EXPECT_SUCCESS(client.start_active_handshake()) << c;
mock_wait_dtls_io_done(client.impl, 15, 5);
// Note that the cio error is generated from server, vice versa.
EXPECT_EQ(c.ClientDone, cio.done) << c;
EXPECT_EQ(c.ServerDone, sio.done) << c;
EXPECT_EQ(c.ClientError, sio.r0 != srs_success) << c;
EXPECT_EQ(c.ServerError, cio.r0 != srs_success) << c;
}
}
VOID TEST(KernelRTCTest, DTLSServerFlowTest)
{
srs_error_t err = srs_success;
DTLSFlowCase cases[] = {
// OK, Client, Server: DTLS v1.0
{0, "dtls1.0", "dtls1.0", true, true, false, false},
// OK, Client, Server: DTLS v1.2
{1, "dtls1.2", "dtls1.2", true, true, false, false},
// OK, Client: DTLS v1.0, Server: DTLS auto(v1.0 or v1.2).
{2, "dtls1.0", "auto", true, true, false, false},
// OK, Client: DTLS v1.2, Server: DTLS auto(v1.0 or v1.2).
{3, "dtls1.2", "auto", true, true, false, false},
// OK, Client: DTLS auto(v1.0 or v1.2), Server: DTLS v1.0
{4, "auto", "dtls1.0", true, true, false, false},
// OK, Client: DTLS auto(v1.0 or v1.2), Server: DTLS v1.0
{5, "auto", "dtls1.2", true, true, false, false},
// OK?, Client: DTLS v1.0, Server: DTLS v1.2
{6, "dtls1.0", "dtls1.2", true, true, false, false},
// OK?, Client: DTLS v1.2, Server: DTLS v1.0
{7, "dtls1.2", "dtls1.0", true, true, false, false},
};
for (int i = 0; i < (int)(sizeof(cases) / sizeof(DTLSFlowCase)); i++) {
DTLSFlowCase c = cases[i];
MockDtlsCallback cio; MockDtls client(&cio);
MockDtlsCallback sio; SrsDtls server(&sio);
MockBridgeDtlsIO b0(&cio, &server, NULL); MockBridgeDtlsIO b1(&sio, NULL, &client);
HELPER_EXPECT_SUCCESS(client.initialize("active", c.ClientVersion)) << c;
HELPER_EXPECT_SUCCESS(server.initialize("passive", c.ServerVersion)) << c;
HELPER_EXPECT_SUCCESS(client.start_active_handshake()) << c;
mock_wait_dtls_io_done(NULL, 15, 5);
// Note that the cio error is generated from server, vice versa.
EXPECT_EQ(c.ClientDone, cio.done) << c;
EXPECT_EQ(c.ServerDone, sio.done) << c;
EXPECT_EQ(c.ClientError, sio.r0 != srs_success) << c;
EXPECT_EQ(c.ServerError, cio.r0 != srs_success) << c;
}
}
VOID TEST(KernelRTCTest, SequenceCompare)
{
if (true) {