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bgp_server_test.cc
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bgp_server_test.cc
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/*
* Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
*/
#include "bgp/bgp_server.h"
#include "base/logging.h"
#include "base/task.h"
#include "base/test/task_test_util.h"
#include "bgp/bgp_config.h"
#include "bgp/bgp_config_parser.h"
#include "bgp/bgp_factory.h"
#include "bgp/bgp_peer.h"
#include "bgp/bgp_peer_membership.h"
#include "bgp/bgp_sandesh.h"
#include "bgp/bgp_session_manager.h"
#include "bgp/state_machine.h"
#include "bgp/inet/inet_table.h"
#include "bgp/test/bgp_server_test_util.h"
#include "control-node/control_node.h"
#include "io/test/event_manager_test.h"
#include "testing/gunit.h"
using namespace boost::asio;
using namespace std;
class BgpSessionManagerCustom : public BgpSessionManager {
public:
BgpSessionManagerCustom(EventManager *evm, BgpServer *server)
: BgpSessionManager(evm, server),
connect_session_fail_(false),
create_session_fail_(false) {
}
void Connect(TcpSession *session, Endpoint remote) {
if (connect_session_fail_)
return;
BgpSessionManager::Connect(session, remote);
}
virtual TcpSession *CreateSession() {
if (create_session_fail_)
return NULL;
return BgpSessionManager::CreateSession();
}
void set_connect_session_fail(bool flag) { connect_session_fail_ = flag; }
void set_create_session_fail(bool flag) { create_session_fail_ = flag; }
private:
bool connect_session_fail_;
bool create_session_fail_;
};
struct ConfigUTAuthKeyItem {
ConfigUTAuthKeyItem(string id, string ikey, string time) :
key_id(id), key(ikey), start_time(time) { }
string key_id;
string key;
string start_time;
};
class BgpServerUnitTest : public ::testing::Test {
public:
void ASNUpdateCb(BgpServerTest *server, as_t old_asn, as_t old_local_asn) {
if (server == a_.get()) {
a_asn_update_notification_cnt_++;
assert(old_asn == a_old_as_);
assert(old_local_asn == a_old_local_as_);
a_old_as_ = server->autonomous_system();
a_old_local_as_ = server->local_autonomous_system();
} else {
b_asn_update_notification_cnt_++;
assert(old_asn == b_old_as_);
assert(old_local_asn == b_old_local_as_);
b_old_as_ = server->autonomous_system();
b_old_local_as_ = server->local_autonomous_system();
}
}
protected:
static bool validate_done_;
static void ValidateClearBgpNeighborResponse(Sandesh *sandesh,
bool success);
static void ValidateShowBgpServerResponse(Sandesh *sandesh);
BgpServerUnitTest() : a_session_manager_(NULL), b_session_manager_(NULL) {
a_asn_update_notification_cnt_ = 0;
b_asn_update_notification_cnt_ = 0;
a_old_as_ = 0;
a_old_local_as_ = 0;
b_old_as_ = 0;
b_old_local_as_ = 0;
}
virtual void SetUp() {
evm_.reset(new EventManager());
a_.reset(new BgpServerTest(evm_.get(), "A"));
b_.reset(new BgpServerTest(evm_.get(), "B"));
thread_.reset(new ServerThread(evm_.get()));
a_session_manager_ =
static_cast<BgpSessionManagerCustom *>(a_->session_manager());
a_session_manager_->Initialize(0);
BGP_DEBUG_UT("Created server at port: " <<
a_session_manager_->GetPort());
b_session_manager_ =
static_cast<BgpSessionManagerCustom *>(b_->session_manager());
b_session_manager_->Initialize(0);
BGP_DEBUG_UT("Created server at port: " <<
b_session_manager_->GetPort());
thread_->Start();
}
virtual void TearDown() {
task_util::WaitForIdle();
a_->Shutdown();
b_->Shutdown();
task_util::WaitForIdle();
TASK_UTIL_EXPECT_EQ(0, TcpServerManager::GetServerCount());
evm_->Shutdown();
if (thread_.get() != NULL) {
thread_->Join();
}
BgpPeerTest::verbose_name(false);
}
size_t GetBgpPeerCount(BgpServer *server) {
return server->peer_list_.size();
}
void PausePeerRibMembershipManager(BgpServer *server) {
task_util::WaitForIdle();
server->membership_mgr()->event_queue_->set_disable(true);
}
void ResumePeerRibMembershipManager(BgpServer *server) {
server->membership_mgr()->event_queue_->set_disable(false);
task_util::WaitForIdle();
}
const StateMachine *GetPeerStateMachine(BgpPeer *peer) {
return peer->state_machine();
}
void SetSocketOpenFailure(BgpSessionManager *session_manager, bool flag) {
session_manager->set_socket_open_failure(flag);
}
size_t GetSessionQueueSize(BgpSessionManager *session_manager) {
return session_manager->GetSessionQueueSize();
}
void SetSessionQueueDisable(BgpSessionManager *session_manager, bool flag) {
session_manager->SetSessionQueueDisable(flag);
}
void SetupPeers(int peer_count, unsigned short port_a,
unsigned short port_b, bool verify_keepalives,
uint16_t as_num1 = BgpConfigManager::kDefaultAutonomousSystem,
uint16_t as_num2 = BgpConfigManager::kDefaultAutonomousSystem,
string peer_address1 = "127.0.0.1",
string peer_address2 = "127.0.0.1",
string bgp_identifier1 = "192.168.0.10",
string bgp_identifier2 = "192.168.0.11",
vector<string> families1 = vector<string>(),
vector<string> families2 = vector<string>(),
uint16_t hold_time1 = StateMachine::kHoldTime,
uint16_t hold_time2 = StateMachine::kHoldTime);
void SetupPeers(int peer_count, unsigned short port_a,
unsigned short port_b, bool verify_keepalives,
uint16_t as_num1, uint16_t as_num2,
uint16_t local_as_num1, uint16_t local_as_num2);
void SetupPeers(BgpServerTest *server, int peer_count,
unsigned short port_a, unsigned short port_b,
bool verify_keepalives,
uint16_t as_num1 = BgpConfigManager::kDefaultAutonomousSystem,
uint16_t as_num2 = BgpConfigManager::kDefaultAutonomousSystem,
string peer_address1 = "127.0.0.1",
string peer_address2 = "127.0.0.1",
string bgp_identifier1 = "192.168.0.10",
string bgp_identifier2 = "192.168.0.11",
vector<string> families1 = vector<string>(),
vector<string> families2 = vector<string>(),
bool delete_config = false);
// Setup peers with auth keys
void SetupPeers(int peer_count, unsigned short port_a,
unsigned short port_b, bool verify_keepalives,
vector<ConfigUTAuthKeyItem> auth_keys,
uint16_t as_num1 = BgpConfigManager::kDefaultAutonomousSystem,
uint16_t as_num2 = BgpConfigManager::kDefaultAutonomousSystem,
string peer_address1 = "127.0.0.1",
string peer_address2 = "127.0.0.1",
string bgp_identifier1 = "192.168.0.10",
string bgp_identifier2 = "192.168.0.11",
vector<string> families1 = vector<string>(),
vector<string> families2 = vector<string>(),
uint16_t hold_time1 = StateMachine::kHoldTime,
uint16_t hold_time2 = StateMachine::kHoldTime);
// Setup peer with auth keys
void SetupPeers(BgpServerTest *server, int peer_count,
unsigned short port_a, unsigned short port_b,
bool verify_keepalives,
vector<ConfigUTAuthKeyItem> auth_keys,
uint16_t as_num1 = BgpConfigManager::kDefaultAutonomousSystem,
uint16_t as_num2 = BgpConfigManager::kDefaultAutonomousSystem,
string peer_address1 = "127.0.0.1",
string peer_address2 = "127.0.0.1",
string bgp_identifier1 = "192.168.0.10",
string bgp_identifier2 = "192.168.0.11",
vector<string> families1 = vector<string>(),
vector<string> families2 = vector<string>(),
bool delete_config = false);
void VerifyPeers(int peer_count, size_t verify_keepalives_count = 0,
uint16_t local_as_num1 = BgpConfigManager::kDefaultAutonomousSystem,
uint16_t local_as_num2 = BgpConfigManager::kDefaultAutonomousSystem);
string GetConfigStr(int peer_count,
unsigned short port_a, unsigned short port_b,
uint16_t as_num1, uint16_t as_num2,
uint16_t local_as_num1, uint16_t local_as_num2,
string peer_address1, string peer_address2,
string bgp_identifier1, string bgp_identifier2,
vector<string> families1, vector<string> families2,
uint16_t hold_time1, uint16_t hold_time2,
bool delete_config,
vector<ConfigUTAuthKeyItem> auth_keys =
vector<ConfigUTAuthKeyItem>());
auto_ptr<EventManager> evm_;
auto_ptr<ServerThread> thread_;
auto_ptr<BgpServerTest> a_;
auto_ptr<BgpServerTest> b_;
BgpSessionManagerCustom *a_session_manager_;
BgpSessionManagerCustom *b_session_manager_;
tbb::atomic<long> a_asn_update_notification_cnt_;
tbb::atomic<long> b_asn_update_notification_cnt_;
as_t a_old_as_;
as_t b_old_as_;
as_t a_old_local_as_;
as_t b_old_local_as_;
};
bool BgpServerUnitTest::validate_done_;
void BgpServerUnitTest::ValidateClearBgpNeighborResponse(
Sandesh *sandesh, bool success) {
ClearBgpNeighborResp *resp = dynamic_cast<ClearBgpNeighborResp *>(sandesh);
EXPECT_TRUE(resp != NULL);
EXPECT_EQ(success, resp->get_success());
validate_done_ = true;
}
void BgpServerUnitTest::ValidateShowBgpServerResponse(Sandesh *sandesh) {
ShowBgpServerResp *resp = dynamic_cast<ShowBgpServerResp *>(sandesh);
EXPECT_TRUE(resp != NULL);
const SocketIOStats &rx_stats = resp->get_rx_socket_stats();
EXPECT_NE(0, rx_stats.calls);
EXPECT_NE(0, rx_stats.bytes);
EXPECT_NE(0, rx_stats.average_bytes);
const SocketIOStats &tx_stats = resp->get_tx_socket_stats();
EXPECT_NE(0, tx_stats.calls);
EXPECT_NE(0, tx_stats.bytes);
EXPECT_NE(0, tx_stats.average_bytes);
validate_done_ = true;
}
string BgpServerUnitTest::GetConfigStr(int peer_count,
unsigned short port_a, unsigned short port_b,
as_t as_num1, as_t as_num2,
as_t local_as_num1, as_t local_as_num2,
string peer_address1, string peer_address2,
string bgp_identifier1, string bgp_identifier2,
vector<string> families1, vector<string> families2,
uint16_t hold_time1, uint16_t hold_time2,
bool delete_config, vector<ConfigUTAuthKeyItem> auth_keys) {
ostringstream config;
if (families1.empty()) families1.push_back("inet");
if (families2.empty()) families2.push_back("inet");
config << (!delete_config ? "<config>" : "<delete>");
config << "<bgp-router name=\'A\'>"
"<autonomous-system>" << as_num1 << "</autonomous-system>"
"<local-autonomous-system>" << local_as_num1
<< "</local-autonomous-system>"
"<identifier>" << bgp_identifier1 << "</identifier>"
"<address>" << peer_address1 << "</address>"
"<hold-time>" << hold_time1 << "</hold-time>"
"<port>" << port_a << "</port>";
config << "<address-families>";
for (vector<string>::const_iterator it = families1.begin();
it != families1.end(); ++it) {
config << "<family>" << *it << "</family>";
}
config << "</address-families>";
if (!auth_keys.empty()) {
config << "<auth-data>";
config << "<key-type>MD5</key-type>";
config << "<key-items>";
}
for (vector<ConfigUTAuthKeyItem>::const_iterator it =
auth_keys.begin(); it != auth_keys.end(); ++it) {
ConfigUTAuthKeyItem item = *it;
config << "<key-id>" << item.key_id << "</key-id>";
config << "<key>" << item.key << "</key>";
//config << "<start-time>" << "2001-11-12 18:31:01" << "</start-time>";
}
if (!auth_keys.empty()) {
config << "</key-items>";
config << "</auth-data>";
}
for (int i = 0; i < peer_count; i++) {
config << "<session to='B'>";
config << "<address-families>";
for (vector<string>::const_iterator it = families2.begin();
it != families2.end(); ++it) {
config << "<family>" << *it << "</family>";
}
config << "</address-families>";
config << "</session>";
}
config << "</bgp-router>";
config << "<bgp-router name=\'B\'>"
"<autonomous-system>" << as_num2 << "</autonomous-system>"
"<local-autonomous-system>" << local_as_num2
<< "</local-autonomous-system>"
"<identifier>" << bgp_identifier2 << "</identifier>"
"<address>" << peer_address2 << "</address>"
"<hold-time>" << hold_time2 << "</hold-time>"
"<port>" << port_b << "</port>";
config << "<address-families>";
for (vector<string>::const_iterator it = families2.begin();
it != families2.end(); ++it) {
config << "<family>" << *it << "</family>";
}
config << "</address-families>";
if (!auth_keys.empty()) {
config << "<auth-data>";
config << "<key-type>MD5</key-type>";
config << "<key-items>";
}
for (vector<ConfigUTAuthKeyItem>::const_iterator it =
auth_keys.begin(); it != auth_keys.end(); ++it) {
ConfigUTAuthKeyItem item = *it;
config << "<key-id>" << item.key_id << "</key-id>";
config << "<key>" << item.key << "</key>";
//config << "<start-time>" << "2001-11-12 18:31:01" << "</start-time>";
}
if (!auth_keys.empty()) {
config << "</key-items>";
config << "</auth-data>";
}
for (int i = 0; i < peer_count; i++) {
config << "<session to='A'>";
config << "<address-families>";
for (vector<string>::const_iterator it = families1.begin();
it != families1.end(); ++it) {
config << "<family>" << *it << "</family>";
}
config << "</address-families>";
config << "</session>";
}
config << "</bgp-router>";
config << (!delete_config ? "</config>" : "</delete>");
return config.str();
}
void BgpServerUnitTest::SetupPeers(BgpServerTest *server, int peer_count,
unsigned short port_a, unsigned short port_b,
bool verify_keepalives, as_t as_num1, as_t as_num2,
string peer_address1, string peer_address2,
string bgp_identifier1, string bgp_identifier2,
vector<string> families1, vector<string> families2,
bool delete_config) {
string config = GetConfigStr(peer_count, port_a, port_b,
as_num1, as_num2,
as_num1, as_num2,
peer_address1, peer_address2,
bgp_identifier1, bgp_identifier2,
families1, families2,
StateMachine::kHoldTime,
StateMachine::kHoldTime,
delete_config);
server->Configure(config);
task_util::WaitForIdle();
}
void BgpServerUnitTest::SetupPeers(BgpServerTest *server, int peer_count,
unsigned short port_a, unsigned short port_b,
bool verify_keepalives, vector<ConfigUTAuthKeyItem> auth_keys,
as_t as_num1, as_t as_num2, string peer_address1, string peer_address2,
string bgp_identifier1, string bgp_identifier2,
vector<string> families1, vector<string> families2,
bool delete_config) {
string config = GetConfigStr(peer_count, port_a, port_b, as_num1, as_num2,
as_num1, as_num2, peer_address1, peer_address2,
bgp_identifier1, bgp_identifier2,
families1, families2,
StateMachine::kHoldTime,
StateMachine::kHoldTime,
delete_config, auth_keys);
server->Configure(config);
task_util::WaitForIdle();
}
void BgpServerUnitTest::SetupPeers(int peer_count,
unsigned short port_a, unsigned short port_b,
bool verify_keepalives, vector<ConfigUTAuthKeyItem> auth_keys,
as_t as_num1, as_t as_num2,
string peer_address1, string peer_address2,
string bgp_identifier1, string bgp_identifier2,
vector<string> families1, vector<string> families2,
uint16_t hold_time1, uint16_t hold_time2) {
string config = GetConfigStr(peer_count, port_a, port_b, as_num1, as_num2,
as_num1, as_num2, peer_address1, peer_address2,
bgp_identifier1, bgp_identifier2,
families1, families2,
StateMachine::kHoldTime,
StateMachine::kHoldTime,
false, auth_keys);
a_->Configure(config);
task_util::WaitForIdle();
b_->Configure(config);
task_util::WaitForIdle();
}
void BgpServerUnitTest::SetupPeers(int peer_count,
unsigned short port_a, unsigned short port_b,
bool verify_keepalives, as_t as_num1, as_t as_num2,
string peer_address1, string peer_address2,
string bgp_identifier1, string bgp_identifier2,
vector<string> families1, vector<string> families2,
uint16_t hold_time1, uint16_t hold_time2) {
string config = GetConfigStr(peer_count, port_a, port_b,
as_num1, as_num2,
as_num1, as_num2,
peer_address1, peer_address2,
bgp_identifier1, bgp_identifier2,
families1, families2,
hold_time1, hold_time2,
false);
a_->Configure(config);
task_util::WaitForIdle();
b_->Configure(config);
task_util::WaitForIdle();
}
void BgpServerUnitTest::SetupPeers(int peer_count,
unsigned short port_a, unsigned short port_b, bool verify_keepalives,
as_t as_num1, as_t as_num2, as_t local_as_num1, as_t local_as_num2) {
string config = GetConfigStr(peer_count, port_a, port_b,
as_num1, as_num2,
local_as_num1, local_as_num2,
"127.0.0.1", "127.0.0.1",
"192.168.0.10", "192.168.0.11",
vector<string>(), vector<string>(),
StateMachine::kHoldTime,
StateMachine::kHoldTime,
false);
a_->Configure(config);
task_util::WaitForIdle();
b_->Configure(config);
task_util::WaitForIdle();
}
void BgpServerUnitTest::VerifyPeers(int peer_count,
size_t verify_keepalives_count, as_t local_as_num1, as_t local_as_num2) {
BgpProto::BgpPeerType peer_type =
(local_as_num1 == local_as_num2) ? BgpProto::IBGP : BgpProto::EBGP;
const int peers = peer_count;
for (int j = 0; j < peers; j++) {
string uuid = BgpConfigParser::session_uuid("A", "B", j + 1);
TASK_UTIL_EXPECT_NE(static_cast<BgpPeer *>(NULL),
a_->FindPeerByUuid(BgpConfigManager::kMasterInstance, uuid));
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
ASSERT_TRUE(peer_a != NULL);
TASK_UTIL_EXPECT_EQ(local_as_num1, peer_a->local_as());
TASK_UTIL_EXPECT_EQ(peer_type, peer_a->PeerType());
BGP_WAIT_FOR_PEER_STATE(peer_a, StateMachine::ESTABLISHED);
TASK_UTIL_EXPECT_NE(static_cast<BgpPeer *>(NULL),
b_->FindPeerByUuid(BgpConfigManager::kMasterInstance, uuid));
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
ASSERT_TRUE(peer_b != NULL);
TASK_UTIL_EXPECT_EQ(local_as_num2, peer_b->local_as());
TASK_UTIL_EXPECT_EQ(peer_type, peer_b->PeerType());
BGP_WAIT_FOR_PEER_STATE(peer_b, StateMachine::ESTABLISHED);
if (verify_keepalives_count) {
//
// Make sure that a few keepalives are exchanged
//
TASK_UTIL_EXPECT_TRUE(peer_a->get_rx_keepalive() >
verify_keepalives_count);
TASK_UTIL_EXPECT_TRUE(peer_a->get_tx_keepalive() >
verify_keepalives_count);
TASK_UTIL_EXPECT_TRUE(peer_b->get_rx_keepalive() >
verify_keepalives_count);
TASK_UTIL_EXPECT_TRUE(peer_b->get_tx_keepalive() >
verify_keepalives_count);
}
}
}
static void PauseDelete(LifetimeActor *actor) {
TaskScheduler::GetInstance()->Stop();
actor->PauseDelete();
TaskScheduler::GetInstance()->Start();
}
static void ResumeDelete(LifetimeActor *actor) {
TaskScheduler::GetInstance()->Stop();
actor->ResumeDelete();
TaskScheduler::GetInstance()->Start();
}
TEST_F(BgpServerUnitTest, Connection) {
StateMachineTest::set_keepalive_time_msecs(10);
BgpPeerTest::verbose_name(true);
SetupPeers(3, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true);
VerifyPeers(3, 2);
StateMachineTest::set_keepalive_time_msecs(0);
}
// Set the key only on one peer and check connection does not come up. Then add
// the key to the second peer and check that it does comes up.
TEST_F(BgpServerUnitTest, BasicMd5Check) {
int peer_count = 1;
StateMachineTest::set_keepalive_time_msecs(10);
BgpPeerTest::verbose_name(true);
// Set the key for router 'A'.
vector<ConfigUTAuthKeyItem> keys;
keys.push_back(ConfigUTAuthKeyItem("0", "utkey1", ""));
SetupPeers(a_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true, keys);
// No key for router 'B'.
SetupPeers(b_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true);
string uuid = BgpConfigParser::session_uuid("A", "B", 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
// The peering should not come up due to key mismatch.
TASK_UTIL_EXPECT_EQ(0, peer_a->GetInuseAuthKeyValue().compare("utkey1"));
TASK_UTIL_EXPECT_TRUE(peer_a->get_connect_timer_expired() > 10);
TASK_UTIL_EXPECT_TRUE(peer_b->get_connect_timer_expired() > 10);
EXPECT_EQ(0, peer_a->get_rx_keepalive());
EXPECT_EQ(0, peer_b->get_rx_keepalive());
EXPECT_EQ(0, peer_b->GetInuseAuthKeyValue().compare(""));
TASK_UTIL_EXPECT_NE(peer_a->GetState(), StateMachine::ESTABLISHED);
TASK_UTIL_EXPECT_NE(peer_b->GetState(), StateMachine::ESTABLISHED);
// Setup correct key for router 'B' now.
SetupPeers(b_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true, keys);
TASK_UTIL_EXPECT_EQ(0, peer_b->GetInuseAuthKeyValue().compare("utkey1"));
TASK_UTIL_EXPECT_EQ(peer_a->GetState(), StateMachine::ESTABLISHED);
TASK_UTIL_EXPECT_EQ(peer_b->GetState(), StateMachine::ESTABLISHED);
uint32_t check_count =
peer_a->get_rx_keepalive() > peer_b->get_rx_keepalive() ?
peer_a->get_rx_keepalive() : peer_b->get_rx_keepalive();
VerifyPeers(peer_count, check_count + 10);
StateMachineTest::set_keepalive_time_msecs(0);
}
// Bring up the connection without keys. Then add keys to both the peers. Then
// remove the keys from both the peers.
TEST_F(BgpServerUnitTest, NoMd5ThenMd5ThenNoMd5) {
int peer_count = 1;
StateMachineTest::set_keepalive_time_msecs(10);
BgpPeerTest::verbose_name(true);
// Bring up the peers without any keys.
SetupPeers(a_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true);
SetupPeers(b_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true);
// Check that the peering comes up.
string uuid = BgpConfigParser::session_uuid("A", "B", 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
TASK_UTIL_EXPECT_EQ(peer_a->GetState(), StateMachine::ESTABLISHED);
TASK_UTIL_EXPECT_EQ(peer_b->GetState(), StateMachine::ESTABLISHED);
uint32_t rx_ka_a = peer_a->get_rx_keepalive();
uint32_t rx_ka_b = peer_b->get_rx_keepalive();
uint32_t check_count =
peer_a->get_rx_keepalive() > peer_b->get_rx_keepalive() ?
peer_a->get_rx_keepalive() : peer_b->get_rx_keepalive();
VerifyPeers(peer_count, check_count + 10);
EXPECT_GE(peer_a->get_rx_keepalive(), rx_ka_a + 10);
EXPECT_GE(peer_b->get_rx_keepalive(), rx_ka_b + 10);
// Now, set the key for both the routers and check that the peering is
// still up.
vector<ConfigUTAuthKeyItem> keys;
keys.push_back(ConfigUTAuthKeyItem("0", "utkey1", ""));
SetupPeers(a_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true, keys);
SetupPeers(b_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true, keys);
TASK_UTIL_EXPECT_EQ(0, peer_a->GetInuseAuthKeyValue().compare("utkey1"));
TASK_UTIL_EXPECT_EQ(0, peer_b->GetInuseAuthKeyValue().compare("utkey1"));
rx_ka_a = peer_a->get_rx_keepalive();
rx_ka_b = peer_b->get_rx_keepalive();
check_count =
peer_a->get_rx_keepalive() > peer_b->get_rx_keepalive() ?
peer_a->get_rx_keepalive() : peer_b->get_rx_keepalive();
VerifyPeers(peer_count, check_count + 10);
EXPECT_GE(peer_a->get_rx_keepalive(), rx_ka_a + 10);
EXPECT_GE(peer_b->get_rx_keepalive(), rx_ka_b + 10);
// Sleep for sometime and let a few keepalives get exchanged.
usleep(100000); // 100ms
EXPECT_EQ(peer_a->GetState(), StateMachine::ESTABLISHED);
EXPECT_EQ(peer_b->GetState(), StateMachine::ESTABLISHED);
check_count =
peer_a->get_rx_keepalive() > peer_b->get_rx_keepalive() ?
peer_a->get_rx_keepalive() : peer_b->get_rx_keepalive();
VerifyPeers(peer_count, check_count + 10);
EXPECT_GE(peer_a->get_rx_keepalive(), rx_ka_a + 10);
EXPECT_GE(peer_b->get_rx_keepalive(), rx_ka_b + 10);
/*
// Now remove the keys from both the routers and check that the peering
// stays up.
SetupPeers(a_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true);
SetupPeers(b_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true);
TASK_UTIL_EXPECT_EQ(0, peer_a->GetInuseAuthKeyValue().compare(""));
TASK_UTIL_EXPECT_EQ(0, peer_b->GetInuseAuthKeyValue().compare(""));
rx_ka_a = peer_a->get_rx_keepalive();
rx_ka_b = peer_b->get_rx_keepalive();
check_count =
peer_a->get_rx_keepalive() > peer_b->get_rx_keepalive() ?
peer_a->get_rx_keepalive() : peer_b->get_rx_keepalive();
VerifyPeers(peer_count, check_count + 10);
EXPECT_GE(peer_a->get_rx_keepalive(), rx_ka_a + 10);
EXPECT_GE(peer_b->get_rx_keepalive(), rx_ka_b + 10);
*/
StateMachineTest::set_keepalive_time_msecs(0);
}
// Add key1 to both the peers. Then change it to key2 on both the peers. Then,
// change it to key3 only on one peer. Keepalives stop. Then add key3 to the
// second peer. Keepalives should resume.
TEST_F(BgpServerUnitTest, MultipleMd5KeyChanges) {
int peer_count = 1;
StateMachineTest::set_keepalive_time_msecs(10);
BgpPeerTest::verbose_name(true);
// Set the same key for both 'A' and 'B'.
vector<ConfigUTAuthKeyItem> keys;
keys.push_back(ConfigUTAuthKeyItem("0", "utkey1", ""));
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true, keys);
VerifyPeers(peer_count, 10);
uint32_t rx_ka_a;
uint32_t rx_ka_b;
string uuid = BgpConfigParser::session_uuid("A", "B", 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
// Change the key for both 'A' and 'B' with the same key. Save the receive
// keepalive count for both peers.
keys.clear();
keys.push_back(ConfigUTAuthKeyItem("0", "utkey2", ""));
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true, keys);
TASK_UTIL_EXPECT_EQ(0, peer_a->GetInuseAuthKeyValue().compare("utkey2"));
TASK_UTIL_EXPECT_EQ(0, peer_b->GetInuseAuthKeyValue().compare("utkey2"));
usleep(100000); // 100ms
rx_ka_a = peer_a->get_rx_keepalive();
rx_ka_b = peer_b->get_rx_keepalive();
uint32_t check_count =
peer_a->get_rx_keepalive() > peer_b->get_rx_keepalive() ?
peer_a->get_rx_keepalive() : peer_b->get_rx_keepalive();
VerifyPeers(peer_count, check_count + 10);
// The keepalives should keep flowing even after the key change.
EXPECT_GE(peer_a->get_rx_keepalive(), rx_ka_a + 10);
EXPECT_GE(peer_b->get_rx_keepalive(), rx_ka_b + 10);
// Change the key only on router 'A'.
keys.clear();
keys.push_back(ConfigUTAuthKeyItem("0", "utkey3", ""));
SetupPeers(a_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true, keys);
TASK_UTIL_EXPECT_EQ(0, peer_a->GetInuseAuthKeyValue().compare("utkey3"));
rx_ka_a = peer_a->get_rx_keepalive();
rx_ka_b = peer_b->get_rx_keepalive();
uint32_t tx_ka_a = peer_a->get_tx_keepalive();
uint32_t tx_ka_b = peer_b->get_tx_keepalive();
// Sleep for sometime to give the counters enough time.
usleep(100000); // 100ms
// Both sides should not receive any keepalives since TCP should be
// dropping the segments due to Md5 mismatch. But, the transmit counters
// should keep going up.
TASK_UTIL_EXPECT_TRUE(peer_a->get_tx_keepalive() > (tx_ka_a + 10));
TASK_UTIL_EXPECT_TRUE(peer_b->get_tx_keepalive() > (tx_ka_b + 10));
EXPECT_EQ(peer_a->get_rx_keepalive(), rx_ka_a);
EXPECT_EQ(peer_b->get_rx_keepalive(), rx_ka_b);
// Change the key on router 'B'.
SetupPeers(b_.get(), peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true, keys);
TASK_UTIL_EXPECT_EQ(0, peer_b->GetInuseAuthKeyValue().compare("utkey3"));
rx_ka_a = peer_a->get_rx_keepalive();
rx_ka_b = peer_b->get_rx_keepalive();
check_count = peer_a->get_rx_keepalive() > peer_b->get_rx_keepalive() ?
peer_a->get_rx_keepalive() : peer_b->get_rx_keepalive();
VerifyPeers(peer_count, check_count + 10);
EXPECT_GT(peer_a->get_rx_keepalive(), rx_ka_a);
EXPECT_GT(peer_b->get_rx_keepalive(), rx_ka_b);
// Change the key for both 'A' and 'B' with the first key again.
keys.clear();
keys.push_back(ConfigUTAuthKeyItem("0", "utkey1", ""));
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true, keys);
TASK_UTIL_EXPECT_EQ(0, peer_a->GetInuseAuthKeyValue().compare("utkey1"));
TASK_UTIL_EXPECT_EQ(0, peer_b->GetInuseAuthKeyValue().compare("utkey1"));
usleep(100000); // 100ms
rx_ka_a = peer_a->get_rx_keepalive();
rx_ka_b = peer_b->get_rx_keepalive();
check_count =
peer_a->get_rx_keepalive() > peer_b->get_rx_keepalive() ?
peer_a->get_rx_keepalive() : peer_b->get_rx_keepalive();
VerifyPeers(peer_count, check_count + 10);
// The keepalives should keep flowing even after the key change.
EXPECT_GE(peer_a->get_rx_keepalive(), rx_ka_a + 10);
EXPECT_GE(peer_b->get_rx_keepalive(), rx_ka_b + 10);
StateMachineTest::set_keepalive_time_msecs(0);
}
TEST_F(BgpServerUnitTest, LotsOfKeepAlives) {
StateMachineTest::set_keepalive_time_msecs(10);
BgpPeerTest::verbose_name(true);
SetupPeers(3, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), true);
VerifyPeers(3, 30);
StateMachineTest::set_keepalive_time_msecs(0);
}
TEST_F(BgpServerUnitTest, ChangeAsNumber1) {
int peer_count = 3;
BgpPeerTest::verbose_name(true);
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), false,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem,
"127.0.0.1", "127.0.0.1",
"192.168.0.10", "192.168.0.11");
VerifyPeers(peer_count, 0,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem);
vector<uint32_t> flap_count_a;
vector<uint32_t> flap_count_b;
//
// Note down the current flap count
//
for (int j = 0; j < peer_count; j++) {
string uuid = BgpConfigParser::session_uuid("A", "B", j + 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
flap_count_a.push_back(peer_a->flap_count());
flap_count_b.push_back(peer_b->flap_count());
}
//
// Modify AS Number and apply
//
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), false,
BgpConfigManager::kDefaultAutonomousSystem + 1,
BgpConfigManager::kDefaultAutonomousSystem + 1,
"127.0.0.1", "127.0.0.1",
"192.168.0.10", "192.168.0.11");
VerifyPeers(peer_count, 0,
BgpConfigManager::kDefaultAutonomousSystem + 1,
BgpConfigManager::kDefaultAutonomousSystem + 1);
//
// Make sure that the peers did flap
//
for (int j = 0; j < peer_count; j++) {
string uuid = BgpConfigParser::session_uuid("A", "B", j + 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
TASK_UTIL_EXPECT_TRUE(peer_a->flap_count() > flap_count_a[j]);
TASK_UTIL_EXPECT_TRUE(peer_b->flap_count() > flap_count_b[j]);
}
}
TEST_F(BgpServerUnitTest, ChangeAsNumber2) {
int peer_count = 3;
BgpPeerTest::verbose_name(true);
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), false,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem,
"127.0.0.1", "127.0.0.1",
"192.168.0.10", "192.168.0.11");
VerifyPeers(peer_count, 0,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem);
vector<uint32_t> flap_count_a;
vector<uint32_t> flap_count_b;
//
// Note down the current flap count
//
for (int j = 0; j < peer_count; j++) {
string uuid = BgpConfigParser::session_uuid("A", "B", j + 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
flap_count_a.push_back(peer_a->flap_count());
flap_count_b.push_back(peer_b->flap_count());
}
//
// Modify AS Number and apply
//
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), false,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem + 1,
"127.0.0.1", "127.0.0.1",
"192.168.0.10", "192.168.0.11");
VerifyPeers(peer_count, 0,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem + 1);
//
// Make sure that the peers did flap
//
for (int j = 0; j < peer_count; j++) {
string uuid = BgpConfigParser::session_uuid("A", "B", j + 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
TASK_UTIL_EXPECT_TRUE(peer_a->flap_count() > flap_count_a[j]);
TASK_UTIL_EXPECT_TRUE(peer_b->flap_count() > flap_count_b[j]);
}
}
TEST_F(BgpServerUnitTest, ChangeAsNumber3) {
int peer_count = 3;
BgpPeerTest::verbose_name(true);
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), false,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem + 1,
"127.0.0.1", "127.0.0.1",
"192.168.0.10", "192.168.0.11");
VerifyPeers(peer_count, 0,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem + 1);
vector<uint32_t> flap_count_a;
vector<uint32_t> flap_count_b;
//
// Note down the current flap count
//
for (int j = 0; j < peer_count; j++) {
string uuid = BgpConfigParser::session_uuid("A", "B", j + 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
flap_count_a.push_back(peer_a->flap_count());
flap_count_b.push_back(peer_b->flap_count());
}
//
// Modify AS Number and apply
//
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), false,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem,
"127.0.0.1", "127.0.0.1",
"192.168.0.10", "192.168.0.11");
VerifyPeers(peer_count, 0,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem);
//
// Make sure that the peers did flap
//
for (int j = 0; j < peer_count; j++) {
string uuid = BgpConfigParser::session_uuid("A", "B", j + 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
TASK_UTIL_EXPECT_TRUE(peer_a->flap_count() > flap_count_a[j]);
TASK_UTIL_EXPECT_TRUE(peer_b->flap_count() > flap_count_b[j]);
}
}
TEST_F(BgpServerUnitTest, ChangeLocalAsNumber1) {
int peer_count = 3;
BgpPeerTest::verbose_name(true);
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), false,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem + 100,
BgpConfigManager::kDefaultAutonomousSystem + 100);
VerifyPeers(peer_count, 0,
BgpConfigManager::kDefaultAutonomousSystem + 100,
BgpConfigManager::kDefaultAutonomousSystem + 100);
vector<uint32_t> flap_count_a;
vector<uint32_t> flap_count_b;
//
// Note down the current flap count
//
for (int j = 0; j < peer_count; j++) {
string uuid = BgpConfigParser::session_uuid("A", "B", j + 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
flap_count_a.push_back(peer_a->flap_count());
flap_count_b.push_back(peer_b->flap_count());
}
//
// Modify Local AS Number and apply
//
SetupPeers(peer_count, a_->session_manager()->GetPort(),
b_->session_manager()->GetPort(), false,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem,
BgpConfigManager::kDefaultAutonomousSystem + 101,
BgpConfigManager::kDefaultAutonomousSystem + 101);
VerifyPeers(peer_count, 0,
BgpConfigManager::kDefaultAutonomousSystem + 101,
BgpConfigManager::kDefaultAutonomousSystem + 101);
//
// Make sure that the peers did flap
//
for (int j = 0; j < peer_count; j++) {
string uuid = BgpConfigParser::session_uuid("A", "B", j + 1);
BgpPeer *peer_a = a_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
BgpPeer *peer_b = b_->FindPeerByUuid(BgpConfigManager::kMasterInstance,
uuid);
TASK_UTIL_EXPECT_TRUE(peer_a->flap_count() > flap_count_a[j]);
TASK_UTIL_EXPECT_TRUE(peer_b->flap_count() > flap_count_b[j]);
}
}