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4348f5b13d
lokinet/test/link/test_llarp_link.cpp
Jeff Becker b245453ef6
fix unit test
2019-03-04 11:31:05 -05:00

437 lines
12 KiB
C++
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#include <link/utp.hpp>
#include <link/iwp.hpp>
#include <ev/ev.h>
#include <messages/link_intro.hpp>
#include <messages/discard.hpp>
#include <crypto/crypto_libsodium.hpp>
#include <gtest/gtest.h>
struct LinkLayerTest : public ::testing::Test
{
static constexpr uint16_t AlicePort = 5000;
static constexpr uint16_t BobPort = 6000;
struct Context
{
Context(llarp::Crypto& c)
{
crypto = &c;
crypto->identity_keygen(signingKey);
crypto->encryption_keygen(encryptionKey);
rc.pubkey = llarp::seckey_topublic(signingKey);
rc.enckey = llarp::seckey_topublic(encryptionKey);
}
llarp::SecretKey signingKey;
llarp::SecretKey encryptionKey;
llarp::RouterContact rc;
llarp::Crypto* crypto;
bool gotLIM = false;
const llarp::RouterContact&
GetRC() const
{
return rc;
}
llarp::RouterID
GetRouterID() const
{
return rc.pubkey;
}
/// regenerate rc and rotate onion key
bool
Regen()
{
crypto->encryption_keygen(encryptionKey);
rc.enckey = llarp::seckey_topublic(encryptionKey);
return rc.Sign(crypto, signingKey);
}
std::unique_ptr< llarp::ILinkLayer > link;
static std::string
localLoopBack()
{
#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) \
|| (__APPLE__ && __MACH__)
return "lo0";
#else
return "lo";
#endif
}
bool
Start(llarp::Logic* logic, llarp_ev_loop* loop, uint16_t port)
{
if(!link)
return false;
if(!link->Configure(loop, localLoopBack(), AF_INET, port))
return false;
if(!link->GenEphemeralKeys())
return false;
rc.addrs.emplace_back();
if(!link->GetOurAddressInfo(rc.addrs[0]))
return false;
if(!rc.Sign(crypto, signingKey))
return false;
return link->Start(logic);
}
void
Stop()
{
if(link)
link->Stop();
}
void
TearDown()
{
Stop();
link.reset();
}
};
llarp::sodium::CryptoLibSodium crypto;
Context Alice;
Context Bob;
bool success = false;
llarp_ev_loop* netLoop;
std::unique_ptr< llarp::Logic > logic;
llarp_time_t oldRCLifetime;
LinkLayerTest() : Alice(crypto), Bob(crypto), netLoop(nullptr)
{
}
void
SetUp()
{
oldRCLifetime = llarp::RouterContact::Lifetime;
llarp::RouterContact::IgnoreBogons = true;
llarp::RouterContact::Lifetime = 500;
llarp_ev_loop_alloc(&netLoop);
logic.reset(new llarp::Logic());
}
void
TearDown()
{
Alice.TearDown();
Bob.TearDown();
logic.reset();
llarp_ev_loop_free(&netLoop);
llarp::RouterContact::IgnoreBogons = false;
llarp::RouterContact::Lifetime = oldRCLifetime;
}
static void
OnTimeout(void* u, uint64_t, uint64_t left)
{
if(left)
return;
static_cast< LinkLayerTest* >(u)->Stop();
}
void
RunMainloop()
{
logic->call_later({5000, this, &OnTimeout});
llarp_ev_loop_run_single_process(netLoop, logic->thread, logic.get());
}
void
Stop()
{
llarp_ev_loop_stop(netLoop);
}
bool
AliceGotMessage(const llarp_buffer_t&)
{
success = true;
Stop();
return true;
}
};
TEST_F(LinkLayerTest, TestUTPAliceRenegWithBob)
{
Alice.link = llarp::utp::NewServer(
&crypto, Alice.encryptionKey,
[&]() -> const llarp::RouterContact& { return Alice.GetRC(); },
[&](llarp::ILinkSession* s, const llarp_buffer_t& buf) -> bool {
if(Alice.gotLIM)
{
Alice.Regen();
return s->RenegotiateSession();
}
else
{
llarp::LinkIntroMessage msg;
ManagedBuffer copy{buf};
if(!msg.BDecode(&copy.underlying))
return false;
if(!s->GotLIM(&msg))
return false;
Alice.gotLIM = true;
return true;
}
},
[&](llarp::ILinkSession* s) -> bool {
const auto rc = s->GetRemoteRC();
return rc.pubkey == Bob.GetRC().pubkey;
},
[&](llarp::RouterContact, llarp::RouterContact) -> bool { return true; },
[&](llarp::Signature& sig, const llarp_buffer_t& buf) -> bool {
return crypto.sign(sig, Alice.signingKey, buf);
},
[&](llarp::ILinkSession* session) {
ASSERT_FALSE(session->IsEstablished());
Stop();
},
[&](llarp::RouterID router) { ASSERT_EQ(router, Bob.GetRouterID()); });
auto sendDiscardMessage = [](llarp::ILinkSession* s) -> bool {
// send discard message in reply to complete unit test
std::array< byte_t, 32 > tmp;
llarp_buffer_t otherBuf(tmp);
llarp::DiscardMessage discard;
if(!discard.BEncode(&otherBuf))
return false;
otherBuf.sz = otherBuf.cur - otherBuf.base;
otherBuf.cur = otherBuf.base;
return s->SendMessageBuffer(otherBuf);
};
Bob.link = llarp::utp::NewServer(
&crypto, Bob.encryptionKey,
[&]() -> const llarp::RouterContact& { return Bob.GetRC(); },
[&](llarp::ILinkSession* s, const llarp_buffer_t& buf) -> bool {
llarp::LinkIntroMessage msg;
ManagedBuffer copy{buf};
if(!msg.BDecode(&copy.underlying))
return false;
if(!s->GotLIM(&msg))
return false;
Bob.gotLIM = true;
return sendDiscardMessage(s);
},
[&](llarp::ILinkSession* s) -> bool {
if(s->GetRemoteRC().pubkey != Alice.GetRC().pubkey)
return false;
llarp::LogInfo("bob established with alice");
return Bob.link->VisitSessionByPubkey(Alice.GetRC().pubkey.as_array(),
sendDiscardMessage);
},
[&](llarp::RouterContact newrc, llarp::RouterContact oldrc) -> bool {
success = newrc.pubkey == oldrc.pubkey;
return true;
},
[&](llarp::Signature& sig, const llarp_buffer_t& buf) -> bool {
return crypto.sign(sig, Bob.signingKey, buf);
},
[&](llarp::ILinkSession* session) {
ASSERT_FALSE(session->IsEstablished());
},
[&](llarp::RouterID router) { ASSERT_EQ(router, Alice.GetRouterID()); });
ASSERT_TRUE(Alice.Start(logic.get(), netLoop, AlicePort));
ASSERT_TRUE(Bob.Start(logic.get(), netLoop, BobPort));
ASSERT_TRUE(Alice.link->TryEstablishTo(Bob.GetRC()));
RunMainloop();
ASSERT_TRUE(Bob.gotLIM);
ASSERT_TRUE(success);
}
TEST_F(LinkLayerTest, TestUTPAliceConnectToBob)
{
Alice.link = llarp::utp::NewServer(
&crypto, Alice.encryptionKey,
[&]() -> const llarp::RouterContact& { return Alice.GetRC(); },
[&](llarp::ILinkSession* s, const llarp_buffer_t& buf) -> bool {
llarp::LinkIntroMessage lim;
llarp_buffer_t copy(buf.base, buf.sz);
if(lim.BDecode(&copy))
{
if(s->GotLIM(&lim))
{
Alice.gotLIM = true;
return true;
}
return false;
}
return AliceGotMessage(buf);
},
[&](llarp::ILinkSession* s) -> bool {
if(s->GetRemoteRC().pubkey != Bob.GetRC().pubkey)
return false;
llarp::LogInfo("alice established with bob");
return true;
},
[&](llarp::RouterContact, llarp::RouterContact) -> bool { return true; },
[&](llarp::Signature& sig, const llarp_buffer_t& buf) -> bool {
return crypto.sign(sig, Alice.signingKey, buf);
},
[&](llarp::ILinkSession* session) {
ASSERT_FALSE(session->IsEstablished());
Stop();
},
[&](llarp::RouterID router) { ASSERT_EQ(router, Bob.GetRouterID()); });
Bob.link = llarp::utp::NewServer(
&crypto, Bob.encryptionKey,
[&]() -> const llarp::RouterContact& { return Bob.GetRC(); },
[&](llarp::ILinkSession* s, const llarp_buffer_t& buf) -> bool {
llarp::LinkIntroMessage lim;
llarp_buffer_t copy(buf.base, buf.sz);
if(lim.BDecode(&copy))
{
if(s->GotLIM(&lim))
{
Bob.gotLIM = true;
return true;
}
return false;
}
return true;
},
[&](llarp::ILinkSession* s) -> bool {
if(s->GetRemoteRC().pubkey != Alice.GetRC().pubkey)
return false;
llarp::LogInfo("bob established with alice");
logic->queue_job({s, [](void* u) {
llarp::ILinkSession* self =
static_cast< llarp::ILinkSession* >(u);
std::array< byte_t, 32 > tmp;
llarp_buffer_t otherBuf(tmp);
llarp::DiscardMessage discard;
if(!discard.BEncode(&otherBuf))
return;
otherBuf.sz = otherBuf.cur - otherBuf.base;
otherBuf.cur = otherBuf.base;
self->SendMessageBuffer(otherBuf);
}});
return true;
},
[&](llarp::RouterContact, llarp::RouterContact) -> bool { return true; },
[&](llarp::Signature& sig, const llarp_buffer_t& buf) -> bool {
return crypto.sign(sig, Bob.signingKey, buf);
},
[&](llarp::ILinkSession* session) {
ASSERT_FALSE(session->IsEstablished());
},
[&](llarp::RouterID router) { ASSERT_EQ(router, Alice.GetRouterID()); });
ASSERT_TRUE(Alice.Start(logic.get(), netLoop, AlicePort));
ASSERT_TRUE(Bob.Start(logic.get(), netLoop, BobPort));
ASSERT_TRUE(Alice.link->TryEstablishTo(Bob.GetRC()));
RunMainloop();
ASSERT_TRUE(Bob.gotLIM);
ASSERT_TRUE(success);
}
/*
TEST_F(LinkLayerTest, TestIWPAliceConnectToBob)
{
Alice.link = llarp::iwp::NewServer(
&crypto, Alice.encryptionKey,
[&]() -> const llarp::RouterContact& { return Alice.GetRC(); },
[&](llarp::ILinkSession* s, const llarp_buffer_t& buf) -> bool {
if(Alice.gotLIM)
{
return AliceGotMessage(buf);
}
else
{
llarp::LinkIntroMessage msg;
ManagedBuffer copy{buf};
if(!msg.BDecode(&copy.underlying))
return false;
if(!s->GotLIM(&msg))
return false;
Alice.gotLIM = true;
return true;
}
},
[&](llarp::RouterContact rc) {
ASSERT_EQ(rc, Bob.GetRC());
llarp::LogInfo("alice established with bob");
},
[&](llarp::RouterContact, llarp::RouterContact) -> bool { return true; },
[&](llarp::Signature& sig, const llarp_buffer_t& buf) -> bool {
return crypto.sign(sig, Alice.signingKey, buf);
},
[&](llarp::ILinkSession* session) {
ASSERT_FALSE(session->IsEstablished());
Stop();
},
[&](llarp::RouterID router) { ASSERT_EQ(router, Bob.GetRouterID()); });
auto sendDiscardMessage = [](llarp::ILinkSession* s) -> bool {
// send discard message in reply to complete unit test
std::array< byte_t, 32 > tmp;
llarp_buffer_t otherBuf(tmp);
llarp::DiscardMessage discard;
if(!discard.BEncode(&otherBuf))
return false;
otherBuf.sz = otherBuf.cur - otherBuf.base;
otherBuf.cur = otherBuf.base;
return s->SendMessageBuffer(otherBuf);
};
Bob.link = llarp::iwp::NewServer(
&crypto, Bob.encryptionKey,
[&]() -> const llarp::RouterContact& { return Bob.GetRC(); },
[&](llarp::ILinkSession* s, const llarp_buffer_t& buf) -> bool {
llarp::LinkIntroMessage msg;
ManagedBuffer copy{buf};
if(!msg.BDecode(&copy.underlying))
return false;
if(!s->GotLIM(&msg))
return false;
Bob.gotLIM = true;
return true;
},
[&](llarp::RouterContact rc) {
ASSERT_EQ(rc, Alice.GetRC());
llarp::LogInfo("bob established with alice");
Bob.link->VisitSessionByPubkey(Alice.GetRC().pubkey.as_array(),
sendDiscardMessage);
},
[&](llarp::RouterContact, llarp::RouterContact) -> bool { return true; },
[&](llarp::Signature& sig, const llarp_buffer_t& buf) -> bool {
return crypto.sign(sig, Bob.signingKey, buf);
},
[&](llarp::ILinkSession* session) {
ASSERT_FALSE(session->IsEstablished());
},
[&](llarp::RouterID router) { ASSERT_EQ(router, Alice.GetRouterID()); });
ASSERT_TRUE(Alice.Start(logic.get(), netLoop, AlicePort));
ASSERT_TRUE(Bob.Start(logic.get(), netLoop, BobPort));
ASSERT_TRUE(Alice.link->TryEstablishTo(Bob.GetRC()));
RunMainloop();
ASSERT_TRUE(Alice.gotLIM);
ASSERT_TRUE(Bob.gotLIM);
ASSERT_TRUE(success);
};
*/
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