28e2075280
trunk/talk git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
389 lines
16 KiB
C++
389 lines
16 KiB
C++
/*
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* libjingle
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* Copyright 2012, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <string>
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#include <vector>
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#include "talk/base/fakesslidentity.h"
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#include "talk/base/gunit.h"
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#include "talk/p2p/base/constants.h"
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#include "talk/p2p/base/transportdescription.h"
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#include "talk/p2p/base/transportdescriptionfactory.h"
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using talk_base::scoped_ptr;
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using cricket::TransportDescriptionFactory;
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using cricket::TransportDescription;
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using cricket::TransportOptions;
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// TODO(juberti): Change this to SHA-256 once we have Win32 using OpenSSL.
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static const char* kDefaultDigestAlg = talk_base::DIGEST_SHA_1;
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class TransportDescriptionFactoryTest : public testing::Test {
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public:
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TransportDescriptionFactoryTest()
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: id1_(new talk_base::FakeSSLIdentity("User1")),
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id2_(new talk_base::FakeSSLIdentity("User2")) {
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f1_.set_digest_algorithm(kDefaultDigestAlg);
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f2_.set_digest_algorithm(kDefaultDigestAlg);
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}
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void CheckDesc(const TransportDescription* desc, const std::string& type,
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const std::string& opt, const std::string& ice_ufrag,
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const std::string& ice_pwd, const std::string& dtls_alg) {
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ASSERT_TRUE(desc != NULL);
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EXPECT_EQ(type, desc->transport_type);
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EXPECT_EQ(!opt.empty(), desc->HasOption(opt));
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if (ice_ufrag.empty() && ice_pwd.empty()) {
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EXPECT_EQ(static_cast<size_t>(cricket::ICE_UFRAG_LENGTH),
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desc->ice_ufrag.size());
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EXPECT_EQ(static_cast<size_t>(cricket::ICE_PWD_LENGTH),
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desc->ice_pwd.size());
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} else {
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EXPECT_EQ(ice_ufrag, desc->ice_ufrag);
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EXPECT_EQ(ice_pwd, desc->ice_pwd);
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}
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if (dtls_alg.empty()) {
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EXPECT_TRUE(desc->identity_fingerprint.get() == NULL);
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} else {
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ASSERT_TRUE(desc->identity_fingerprint.get() != NULL);
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EXPECT_EQ(desc->identity_fingerprint->algorithm, dtls_alg);
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EXPECT_GT(desc->identity_fingerprint->digest.length(), 0U);
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}
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}
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// This test ice restart by doing two offer answer exchanges. On the second
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// exchange ice is restarted. The test verifies that the ufrag and password
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// in the offer and answer is changed.
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// If |dtls| is true, the test verifies that the finger print is not changed.
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void TestIceRestart(bool dtls) {
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if (dtls) {
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f1_.set_secure(cricket::SEC_ENABLED);
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f2_.set_secure(cricket::SEC_ENABLED);
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f1_.set_identity(id1_.get());
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f2_.set_identity(id2_.get());
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} else {
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f1_.set_secure(cricket::SEC_DISABLED);
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f2_.set_secure(cricket::SEC_DISABLED);
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}
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cricket::TransportOptions options;
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// The initial offer / answer exchange.
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talk_base::scoped_ptr<TransportDescription> offer(f1_.CreateOffer(
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options, NULL));
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talk_base::scoped_ptr<TransportDescription> answer(
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f2_.CreateAnswer(offer.get(),
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options, NULL));
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// Create an updated offer where we restart ice.
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options.ice_restart = true;
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talk_base::scoped_ptr<TransportDescription> restart_offer(f1_.CreateOffer(
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options, offer.get()));
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VerifyUfragAndPasswordChanged(dtls, offer.get(), restart_offer.get());
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// Create a new answer. The transport ufrag and password is changed since
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// |options.ice_restart == true|
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talk_base::scoped_ptr<TransportDescription> restart_answer(
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f2_.CreateAnswer(restart_offer.get(), options, answer.get()));
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ASSERT_TRUE(restart_answer.get() != NULL);
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VerifyUfragAndPasswordChanged(dtls, answer.get(), restart_answer.get());
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}
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void VerifyUfragAndPasswordChanged(bool dtls,
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const TransportDescription* org_desc,
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const TransportDescription* restart_desc) {
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EXPECT_NE(org_desc->ice_pwd, restart_desc->ice_pwd);
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EXPECT_NE(org_desc->ice_ufrag, restart_desc->ice_ufrag);
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EXPECT_EQ(static_cast<size_t>(cricket::ICE_UFRAG_LENGTH),
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restart_desc->ice_ufrag.size());
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EXPECT_EQ(static_cast<size_t>(cricket::ICE_PWD_LENGTH),
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restart_desc->ice_pwd.size());
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// If DTLS is enabled, make sure the finger print is unchanged.
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if (dtls) {
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EXPECT_FALSE(
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org_desc->identity_fingerprint->GetRfc4572Fingerprint().empty());
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EXPECT_EQ(org_desc->identity_fingerprint->GetRfc4572Fingerprint(),
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restart_desc->identity_fingerprint->GetRfc4572Fingerprint());
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}
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}
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protected:
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TransportDescriptionFactory f1_;
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TransportDescriptionFactory f2_;
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scoped_ptr<talk_base::SSLIdentity> id1_;
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scoped_ptr<talk_base::SSLIdentity> id2_;
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};
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// Test that in the default case, we generate the expected G-ICE offer.
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TEST_F(TransportDescriptionFactoryTest, TestOfferGice) {
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f1_.set_protocol(cricket::ICEPROTO_GOOGLE);
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scoped_ptr<TransportDescription> desc(f1_.CreateOffer(
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TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_GINGLE_P2P, "", "", "", "");
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}
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// Test generating a hybrid offer.
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TEST_F(TransportDescriptionFactoryTest, TestOfferHybrid) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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scoped_ptr<TransportDescription> desc(f1_.CreateOffer(
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TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "google-ice", "", "", "");
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}
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// Test generating an ICE-only offer.
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TEST_F(TransportDescriptionFactoryTest, TestOfferIce) {
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f1_.set_protocol(cricket::ICEPROTO_RFC5245);
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scoped_ptr<TransportDescription> desc(f1_.CreateOffer(
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TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "", "", "", "");
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}
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// Test generating a hybrid offer with DTLS.
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TEST_F(TransportDescriptionFactoryTest, TestOfferHybridDtls) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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f1_.set_secure(cricket::SEC_ENABLED);
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f1_.set_identity(id1_.get());
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scoped_ptr<TransportDescription> desc(f1_.CreateOffer(
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TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "google-ice", "", "",
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kDefaultDigestAlg);
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// Ensure it also works with SEC_REQUIRED.
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f1_.set_secure(cricket::SEC_REQUIRED);
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desc.reset(f1_.CreateOffer(TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "google-ice", "", "",
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kDefaultDigestAlg);
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}
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// Test generating a hybrid offer with DTLS fails with no identity.
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TEST_F(TransportDescriptionFactoryTest, TestOfferHybridDtlsWithNoIdentity) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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f1_.set_secure(cricket::SEC_ENABLED);
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scoped_ptr<TransportDescription> desc(f1_.CreateOffer(
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TransportOptions(), NULL));
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ASSERT_TRUE(desc.get() == NULL);
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}
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// Test generating a hybrid offer with DTLS fails with an unsupported digest.
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TEST_F(TransportDescriptionFactoryTest, TestOfferHybridDtlsWithBadDigestAlg) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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f1_.set_secure(cricket::SEC_ENABLED);
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f1_.set_identity(id1_.get());
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f1_.set_digest_algorithm("bogus");
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scoped_ptr<TransportDescription> desc(f1_.CreateOffer(
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TransportOptions(), NULL));
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ASSERT_TRUE(desc.get() == NULL);
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}
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// Test updating a hybrid offer with DTLS to pick ICE.
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// The ICE credentials should stay the same in the new offer.
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TEST_F(TransportDescriptionFactoryTest, TestOfferHybridDtlsReofferIceDtls) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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f1_.set_secure(cricket::SEC_ENABLED);
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f1_.set_identity(id1_.get());
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scoped_ptr<TransportDescription> old_desc(f1_.CreateOffer(
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TransportOptions(), NULL));
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ASSERT_TRUE(old_desc.get() != NULL);
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f1_.set_protocol(cricket::ICEPROTO_RFC5245);
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scoped_ptr<TransportDescription> desc(
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f1_.CreateOffer(TransportOptions(), old_desc.get()));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "",
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old_desc->ice_ufrag, old_desc->ice_pwd, kDefaultDigestAlg);
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}
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// Test that we can answer a GICE offer with GICE.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerGiceToGice) {
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f1_.set_protocol(cricket::ICEPROTO_GOOGLE);
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f2_.set_protocol(cricket::ICEPROTO_GOOGLE);
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scoped_ptr<TransportDescription> offer(f1_.CreateOffer(
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TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> desc(f2_.CreateAnswer(
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offer.get(), TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_GINGLE_P2P, "", "", "", "");
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// Should get the same result when answering as hybrid.
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f2_.set_protocol(cricket::ICEPROTO_HYBRID);
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desc.reset(f2_.CreateAnswer(offer.get(), TransportOptions(),
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NULL));
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CheckDesc(desc.get(), cricket::NS_GINGLE_P2P, "", "", "", "");
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}
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// Test that we can answer a hybrid offer with GICE.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerGiceToHybrid) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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f2_.set_protocol(cricket::ICEPROTO_GOOGLE);
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scoped_ptr<TransportDescription> offer(f1_.CreateOffer(
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TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> desc(
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f2_.CreateAnswer(offer.get(), TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_GINGLE_P2P, "", "", "", "");
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}
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// Test that we can answer a hybrid offer with ICE.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerIceToHybrid) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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f2_.set_protocol(cricket::ICEPROTO_RFC5245);
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scoped_ptr<TransportDescription> offer(f1_.CreateOffer(
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TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> desc(
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f2_.CreateAnswer(offer.get(), TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "", "", "", "");
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// Should get the same result when answering as hybrid.
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f2_.set_protocol(cricket::ICEPROTO_HYBRID);
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desc.reset(f2_.CreateAnswer(offer.get(), TransportOptions(),
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NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "", "", "", "");
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}
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// Test that we can answer an ICE offer with ICE.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerIceToIce) {
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f1_.set_protocol(cricket::ICEPROTO_RFC5245);
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f2_.set_protocol(cricket::ICEPROTO_RFC5245);
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scoped_ptr<TransportDescription> offer(f1_.CreateOffer(
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TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> desc(f2_.CreateAnswer(
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offer.get(), TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "", "", "", "");
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// Should get the same result when answering as hybrid.
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f2_.set_protocol(cricket::ICEPROTO_HYBRID);
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desc.reset(f2_.CreateAnswer(offer.get(), TransportOptions(),
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NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "", "", "", "");
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}
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// Test that we can't answer a GICE offer with ICE.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerIceToGice) {
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f1_.set_protocol(cricket::ICEPROTO_GOOGLE);
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f2_.set_protocol(cricket::ICEPROTO_RFC5245);
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scoped_ptr<TransportDescription> offer(
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f1_.CreateOffer(TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> desc(
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f2_.CreateAnswer(offer.get(), TransportOptions(), NULL));
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ASSERT_TRUE(desc.get() == NULL);
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}
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// Test that we can't answer an ICE offer with GICE.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerGiceToIce) {
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f1_.set_protocol(cricket::ICEPROTO_RFC5245);
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f2_.set_protocol(cricket::ICEPROTO_GOOGLE);
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scoped_ptr<TransportDescription> offer(
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f1_.CreateOffer(TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> desc(f2_.CreateAnswer(
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offer.get(), TransportOptions(), NULL));
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ASSERT_TRUE(desc.get() == NULL);
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}
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// Test that we can update an answer properly; ICE credentials shouldn't change.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerIceToIceReanswer) {
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f1_.set_protocol(cricket::ICEPROTO_RFC5245);
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f2_.set_protocol(cricket::ICEPROTO_RFC5245);
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scoped_ptr<TransportDescription> offer(
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f1_.CreateOffer(TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> old_desc(
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f2_.CreateAnswer(offer.get(), TransportOptions(), NULL));
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ASSERT_TRUE(old_desc.get() != NULL);
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scoped_ptr<TransportDescription> desc(
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f2_.CreateAnswer(offer.get(), TransportOptions(),
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old_desc.get()));
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ASSERT_TRUE(desc.get() != NULL);
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "",
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old_desc->ice_ufrag, old_desc->ice_pwd, "");
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}
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// Test that we handle answering an offer with DTLS with no DTLS.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerHybridToHybridDtls) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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f1_.set_secure(cricket::SEC_ENABLED);
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f1_.set_identity(id1_.get());
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f2_.set_protocol(cricket::ICEPROTO_HYBRID);
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scoped_ptr<TransportDescription> offer(
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f1_.CreateOffer(TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> desc(
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f2_.CreateAnswer(offer.get(), TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "", "", "", "");
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}
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// Test that we handle answering an offer without DTLS if we have DTLS enabled,
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// but fail if we require DTLS.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerHybridDtlsToHybrid) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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f2_.set_protocol(cricket::ICEPROTO_HYBRID);
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f2_.set_secure(cricket::SEC_ENABLED);
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f2_.set_identity(id2_.get());
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scoped_ptr<TransportDescription> offer(
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f1_.CreateOffer(TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> desc(
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f2_.CreateAnswer(offer.get(), TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "", "", "", "");
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f2_.set_secure(cricket::SEC_REQUIRED);
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desc.reset(f2_.CreateAnswer(offer.get(), TransportOptions(),
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NULL));
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ASSERT_TRUE(desc.get() == NULL);
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}
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// Test that we handle answering an DTLS offer with DTLS, both if we have
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// DTLS enabled and required.
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TEST_F(TransportDescriptionFactoryTest, TestAnswerHybridDtlsToHybridDtls) {
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f1_.set_protocol(cricket::ICEPROTO_HYBRID);
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f1_.set_secure(cricket::SEC_ENABLED);
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f1_.set_identity(id1_.get());
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f2_.set_protocol(cricket::ICEPROTO_HYBRID);
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f2_.set_secure(cricket::SEC_ENABLED);
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f2_.set_identity(id2_.get());
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scoped_ptr<TransportDescription> offer(
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f1_.CreateOffer(TransportOptions(), NULL));
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ASSERT_TRUE(offer.get() != NULL);
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scoped_ptr<TransportDescription> desc(
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f2_.CreateAnswer(offer.get(), TransportOptions(), NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "", "", "",
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kDefaultDigestAlg);
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f2_.set_secure(cricket::SEC_REQUIRED);
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desc.reset(f2_.CreateAnswer(offer.get(), TransportOptions(),
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NULL));
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CheckDesc(desc.get(), cricket::NS_JINGLE_ICE_UDP, "", "", "",
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kDefaultDigestAlg);
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}
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// Test that ice ufrag and password is changed in an updated offer and answer
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// if |TransportDescriptionOptions::ice_restart| is true.
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TEST_F(TransportDescriptionFactoryTest, TestIceRestart) {
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TestIceRestart(false);
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}
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// Test that ice ufrag and password is changed in an updated offer and answer
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// if |TransportDescriptionOptions::ice_restart| is true and DTLS is enabled.
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TEST_F(TransportDescriptionFactoryTest, TestIceRestartWithDtls) {
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TestIceRestart(true);
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}
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