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path_resolver_test.cc
2513 lines (2143 loc) · 100 KB
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path_resolver_test.cc
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/*
* Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
*/
#include "bgp/routing-instance/path_resolver.h"
#include <boost/assign/list_of.hpp>
#include <boost/bind.hpp>
#include <boost/foreach.hpp>
#include <boost/program_options.hpp>
#include "sandesh/sandesh_types.h"
#include "sandesh/sandesh.h"
#include "sandesh/sandesh_trace.h"
#include "bgp/bgp_factory.h"
#include "bgp/bgp_peer_types.h"
#include "bgp/bgp_sandesh.h"
#include "bgp/bgp_session_manager.h"
#include "bgp/extended-community/load_balance.h"
#include "bgp/security_group/security_group.h"
#include "bgp/tunnel_encap/tunnel_encap.h"
#include "bgp/inet/inet_table.h"
#include "bgp/inet6/inet6_table.h"
#include "bgp/test/bgp_server_test_util.h"
#include "control-node/control_node.h"
using namespace boost::program_options;
using boost::assign::list_of;
using std::cout;
using std::endl;
using std::set;
using std::string;
using std::vector;
class PeerMock : public IPeer {
public:
PeerMock(bool is_xmpp, const string &address_str)
: is_xmpp_(is_xmpp) {
boost::system::error_code ec;
address_ = Ip4Address::from_string(address_str, ec);
assert(ec.value() == 0);
}
virtual ~PeerMock() { }
virtual std::string ToString() const { return address_.to_string(); }
virtual std::string ToUVEKey() const { return address_.to_string(); }
virtual bool SendUpdate(const uint8_t *msg, size_t msgsize) { return true; }
virtual BgpServer *server() { return NULL; }
virtual IPeerClose *peer_close() { return NULL; }
virtual IPeerDebugStats *peer_stats() { return NULL; }
virtual const IPeerDebugStats *peer_stats() const { return NULL; }
virtual bool IsReady() const { return true; }
virtual bool IsXmppPeer() const { return is_xmpp_; }
virtual bool IsRegistrationRequired() const { return false; }
virtual void Close() {
}
BgpProto::BgpPeerType PeerType() const {
return is_xmpp_ ? BgpProto::XMPP : BgpProto::EBGP;
}
virtual uint32_t bgp_identifier() const {
return htonl(address_.to_ulong());
}
virtual const std::string GetStateName() const { return ""; }
virtual void UpdateRefCount(int count) const { }
virtual tbb::atomic<int> GetRefCount() const {
tbb::atomic<int> count;
count = 0;
return count;
}
virtual void UpdatePrimaryPathCount(int count) const { }
virtual int GetPrimaryPathCount() const { return 0; }
private:
bool is_xmpp_;
Ip4Address address_;
};
static const char *config = "\
<config>\
<bgp-router name=\'localhost\'>\
<identifier>192.168.0.100</identifier>\
<address>192.168.0.100</address>\
<autonomous-system>64512</autonomous-system>\
</bgp-router>\
<routing-instance name='blue'>\
<vrf-target>target:64512:1</vrf-target>\
</routing-instance>\
<routing-instance name='pink'>\
<vrf-target>target:64512:2</vrf-target>\
</routing-instance>\
</config>\
";
// Overlay nexthop address family.
static bool nexthop_family_is_inet;
//
// Template structure to pass to fixture class template. Needed because
// gtest fixture class template can accept only one template parameter.
//
template <typename T1, typename T2>
struct TypeDefinition {
typedef T1 TableT;
typedef T2 PrefixT;
};
// TypeDefinitions that we want to test.
typedef TypeDefinition<InetTable, Ip4Prefix> InetDefinition;
typedef TypeDefinition<Inet6Table, Inet6Prefix> Inet6Definition;
//
// Fixture class template - instantiated later for each TypeDefinition.
//
template <typename T>
class PathResolverTest : public ::testing::Test {
protected:
typedef typename T::TableT TableT;
typedef typename T::PrefixT PrefixT;
PathResolverTest()
: bgp_server_(new BgpServerTest(&evm_, "localhost")),
family_(GetFamily()),
ipv6_prefix_("::ffff:"),
bgp_peer1_(new PeerMock(false, "192.168.1.1")),
bgp_peer2_(new PeerMock(false, "192.168.1.2")),
xmpp_peer1_(new PeerMock(true, "172.16.1.1")),
xmpp_peer2_(new PeerMock(true, "172.16.1.2")),
validate_done_(false) {
bgp_server_->session_manager()->Initialize(0);
}
~PathResolverTest() {
delete bgp_peer1_;
delete bgp_peer2_;
delete xmpp_peer1_;
delete xmpp_peer2_;
}
virtual void SetUp() {
bgp_server_->Configure(config);
task_util::WaitForIdle();
}
virtual void TearDown() {
task_util::WaitForIdle();
bgp_server_->Shutdown();
task_util::WaitForIdle();
}
Address::Family GetFamily() const {
assert(false);
return Address::UNSPEC;
}
// Return the overlay nexthop address.
string BuildHostAddress(const string &ipv4_addr) const {
if (nexthop_family_is_inet) {
return ipv4_addr;
} else {
return ipv6_prefix_ + ipv4_addr;
}
}
// Overlay nexthop as a prefix.
string BuildPrefix(const string &ipv4_prefix, uint8_t ipv4_plen) const {
if (nexthop_family_is_inet) {
return ipv4_prefix + "/" + integerToString(ipv4_plen);
} else {
return ipv6_prefix_ + ipv4_prefix + "/" +
integerToString(96 + ipv4_plen);
}
}
string BuildPrefix(int index) const {
assert(index <= 65535);
string ipv4_prefix("10.1.");
uint8_t ipv4_plen = Address::kMaxV4PrefixLen;
string byte3 = integerToString(index / 256);
string byte4 = integerToString(index % 256);
if (family_ == Address::INET) {
return ipv4_prefix + byte3 + "." + byte4 + "/" +
integerToString(ipv4_plen);
}
if (family_ == Address::INET6) {
return ipv6_prefix_ + ipv4_prefix + byte3 + "." + byte4 + "/" +
integerToString(96 + ipv4_plen);
}
assert(false);
return "";
}
string BuildNextHopAddress(const string &ipv4_addr) const {
return ipv4_addr;
}
string GetTableName(const string &instance) const {
if (family_ == Address::INET) {
return instance + ".inet.0";
}
if (family_ == Address::INET6) {
return instance + ".inet6.0";
}
assert(false);
return "";
}
BgpTable *GetTable(const string &instance) {
return static_cast<BgpTable *>(
bgp_server_->database()->FindTable(GetTableName(instance)));
}
string GetNexthopTableName(const string &instance) const {
if (nexthop_family_is_inet) {
return instance + ".inet.0";
} else {
return instance + ".inet6.0";
}
}
BgpTable *GetNexthopTable(const string &instance) {
return static_cast<BgpTable *>(
bgp_server_->database()->FindTable(GetNexthopTableName(instance)));
}
// Add a BgpPath that requires resolution.
void AddBgpPath(IPeer *bgp_peer, const string &instance,
const string &prefix_str, const string &nexthop_str, uint32_t med = 0,
const vector<uint32_t> &comm_list = vector<uint32_t>(),
const vector<uint16_t> &as_list = vector<uint16_t>(),
uint32_t flags = 0) {
assert(!bgp_peer->IsXmppPeer());
boost::system::error_code ec;
PrefixT prefix = PrefixT::FromString(prefix_str, &ec);
EXPECT_FALSE(ec);
DBRequest request;
request.oper = DBRequest::DB_ENTRY_ADD_CHANGE;
request.key.reset(new typename TableT::RequestKey(prefix, bgp_peer));
BgpTable *table = GetTable(instance);
BgpAttrSpec attr_spec;
IpAddress nh_addr = IpAddress::from_string(nexthop_str, ec);
EXPECT_FALSE(ec);
BgpAttrNextHop nh_spec(nh_addr);
attr_spec.push_back(&nh_spec);
BgpAttrMultiExitDisc med_spec(med);
if (med)
attr_spec.push_back(&med_spec);
CommunitySpec comm_spec;
if (!comm_list.empty()) {
comm_spec.communities = comm_list;
attr_spec.push_back(&comm_spec);
}
AsPathSpec aspath_spec;
AsPathSpec::PathSegment *ps = new AsPathSpec::PathSegment;
ps->path_segment_type = AsPathSpec::PathSegment::AS_SEQUENCE;
BOOST_FOREACH(uint16_t asn, as_list) {
ps->path_segment.push_back(asn);
}
aspath_spec.path_segments.push_back(ps);
attr_spec.push_back(&aspath_spec);
BgpAttrPtr attr = bgp_server_->attr_db()->Locate(attr_spec);
request.data.reset(
new BgpTable::RequestData(attr, flags|BgpPath::ResolveNexthop, 0));
table->Enqueue(&request);
}
void AddBgpPathWithMed(IPeer *bgp_peer, const string &instance,
const string &prefix_str, const string &nexthop_str, uint32_t med) {
AddBgpPath(bgp_peer, instance, prefix_str, nexthop_str, med);
}
void AddBgpPathWithCommunities(IPeer *bgp_peer, const string &instance,
const string &prefix_str, const string &nexthop_str,
const vector<uint32_t> &comm_list) {
AddBgpPath(bgp_peer, instance, prefix_str, nexthop_str, 0, comm_list);
}
void AddBgpPathWithAsList(IPeer *bgp_peer, const string &instance,
const string &prefix_str, const string &nexthop_str,
const vector<uint16_t> &as_list) {
AddBgpPath(bgp_peer, instance, prefix_str, nexthop_str, 0,
vector<uint32_t>(), as_list);
}
void AddBgpPathWithFlags(IPeer *bgp_peer, const string &instance,
const string &prefix_str, const string &nexthop_str, uint32_t flags) {
AddBgpPath(bgp_peer, instance, prefix_str, nexthop_str, 0,
vector<uint32_t>(), vector<uint16_t>(), flags);
}
template <typename XmppTableT, typename XmppPrefixT>
void AddXmppPathCommon(IPeer *xmpp_peer, const string &instance,
const string &prefix_str, const string &nexthop_str1,
int label, const string &nexthop_str2, vector<uint32_t> sgid_list,
set<string> encap_list, const LoadBalance &lb) {
boost::system::error_code ec;
XmppPrefixT prefix = XmppPrefixT::FromString(prefix_str, &ec);
EXPECT_FALSE(ec);
DBRequest request;
request.oper = DBRequest::DB_ENTRY_ADD_CHANGE;
request.key.reset(
new typename XmppTableT::RequestKey(prefix, xmpp_peer));
BgpTable *table = GetNexthopTable(instance);
int index = table->routing_instance()->index();
BgpAttrSpec attr_spec;
Ip4Address nh_addr1 = Ip4Address::from_string(nexthop_str1, ec);
EXPECT_FALSE(ec);
BgpAttrNextHop nh_spec(nh_addr1);
attr_spec.push_back(&nh_spec);
BgpAttrSourceRd source_rd_spec(
RouteDistinguisher(nh_addr1.to_ulong(), index));
attr_spec.push_back(&source_rd_spec);
ExtCommunitySpec extcomm_spec;
for (vector<uint32_t>::iterator it = sgid_list.begin();
it != sgid_list.end(); ++it) {
SecurityGroup sgid(64512, *it);
uint64_t value = sgid.GetExtCommunityValue();
extcomm_spec.communities.push_back(value);
}
for (set<string>::iterator it = encap_list.begin();
it != encap_list.end(); ++it) {
TunnelEncap encap(*it);
uint64_t value = encap.GetExtCommunityValue();
extcomm_spec.communities.push_back(value);
}
if (!lb.IsDefault()) {
uint64_t value = lb.GetExtCommunityValue();
extcomm_spec.communities.push_back(value);
}
if (!extcomm_spec.communities.empty())
attr_spec.push_back(&extcomm_spec);
BgpAttrPtr attr = bgp_server_->attr_db()->Locate(attr_spec);
typename XmppTableT::RequestData::NextHops nexthops;
typename XmppTableT::RequestData::NextHop nexthop1;
nexthop1.flags_ = 0;
nexthop1.address_ = nh_addr1;
nexthop1.label_ = label;
nexthop1.source_rd_ = RouteDistinguisher(nh_addr1.to_ulong(), index);
nexthops.push_back(nexthop1);
typename XmppTableT::RequestData::NextHop nexthop2;
if (!nexthop_str2.empty()) {
Ip4Address nh_addr2 = Ip4Address::from_string(nexthop_str2, ec);
EXPECT_FALSE(ec);
nexthop2.flags_ = 0;
nexthop2.address_ = nh_addr2;
nexthop2.label_ = label;
nexthop2.source_rd_ =
RouteDistinguisher(nh_addr2.to_ulong(), index);
nexthops.push_back(nexthop2);
}
request.data.reset(new BgpTable::RequestData(attr, nexthops));
table->Enqueue(&request);
}
// Add a BgpPath that that can be used to resolve other paths.
void AddXmppPath(IPeer *xmpp_peer, const string &instance,
const string &prefix_str, const string &nexthop_str1,
int label, const string &nexthop_str2 = string(),
vector<uint32_t> sgid_list = vector<uint32_t>(),
set<string> encap_list = set<string>(),
const LoadBalance &lb = LoadBalance()) {
assert(xmpp_peer->IsXmppPeer());
assert(!nexthop_str1.empty());
assert(label);
if (nexthop_family_is_inet) {
AddXmppPathCommon<InetTable, Ip4Prefix>(
xmpp_peer, instance, prefix_str, nexthop_str1, label,
nexthop_str2, sgid_list, encap_list, lb);
} else {
AddXmppPathCommon<Inet6Table, Inet6Prefix>(
xmpp_peer, instance, prefix_str, nexthop_str1, label,
nexthop_str2, sgid_list, encap_list, lb);
}
}
void AddXmppPathWithSecurityGroups(IPeer *xmpp_peer,
const string &instance, const string &prefix_str,
const string &nexthop_str, int label, vector<uint32_t> sgid_list) {
AddXmppPath(xmpp_peer, instance, prefix_str, nexthop_str, label,
string(), sgid_list);
}
void AddXmppPathWithTunnelEncapsulations(IPeer *xmpp_peer,
const string &instance, const string &prefix_str,
const string &nexthop_str, int label, set<string> encap_list) {
AddXmppPath(xmpp_peer, instance, prefix_str, nexthop_str, label,
string(), vector<uint32_t>(), encap_list);
}
void AddXmppPathWithLoadBalance(IPeer *xmpp_peer,
const string &instance, const string &prefix_str,
const string &nexthop_str, int label, const LoadBalance &lb) {
AddXmppPath(xmpp_peer, instance, prefix_str, nexthop_str, label,
string(), vector<uint32_t>(), set<string>(), lb);
}
void DeletePath(IPeer *peer, const string &instance,
const string &prefix_str) {
}
void DeleteBgpPath(IPeer *bgp_peer, const string &instance,
const string &prefix_str) {
boost::system::error_code ec;
PrefixT prefix = PrefixT::FromString(prefix_str, &ec);
EXPECT_FALSE(ec);
DBRequest request;
request.oper = DBRequest::DB_ENTRY_DELETE;
request.key.reset(new typename TableT::RequestKey(prefix, bgp_peer));
BgpTable *table = GetTable(instance);
table->Enqueue(&request);
}
template <typename XmppTableT, typename XmppPrefixT>
void DeleteXmppPathCommon(IPeer *xmpp_peer, const string &instance,
const string &prefix_str) {
boost::system::error_code ec;
XmppPrefixT prefix = XmppPrefixT::FromString(prefix_str, &ec);
EXPECT_FALSE(ec);
DBRequest request;
request.oper = DBRequest::DB_ENTRY_DELETE;
request.key.reset(
new typename XmppTableT::RequestKey(prefix, xmpp_peer));
BgpTable *table = GetNexthopTable(instance);
table->Enqueue(&request);
}
void DeleteXmppPath(IPeer *xmpp_peer, const string &instance,
const string &prefix_str) {
if (nexthop_family_is_inet) {
DeleteXmppPathCommon<InetTable, Ip4Prefix>(
xmpp_peer, instance, prefix_str);
} else {
DeleteXmppPathCommon<Inet6Table, Inet6Prefix>(
xmpp_peer, instance, prefix_str);
}
}
void DisableConditionListener() {
Address::Family family =
nexthop_family_is_inet ? Address::INET : Address::INET6;
BgpConditionListener *condition_listener =
bgp_server_->condition_listener(family);
condition_listener->DisableTableWalkProcessing();
}
void EnableConditionListener() {
Address::Family family =
nexthop_family_is_inet ? Address::INET : Address::INET6;
BgpConditionListener *condition_listener =
bgp_server_->condition_listener(family);
condition_listener->EnableTableWalkProcessing();
}
size_t ResolverNexthopMapSize(const string &instance) {
BgpTable *table = GetTable(instance);
return table->path_resolver()->GetResolverNexthopMapSize();
}
size_t ResolverNexthopDeleteListSize(const string &instance) {
BgpTable *table = GetTable(instance);
return table->path_resolver()->GetResolverNexthopDeleteListSize();
}
void DisableResolverNexthopRegUnregProcessing(const string &instance) {
BgpTable *table = GetTable(instance);
table->path_resolver()->DisableResolverNexthopRegUnregProcessing();
}
void EnableResolverNexthopRegUnregProcessing(const string &instance) {
BgpTable *table = GetTable(instance);
table->path_resolver()->EnableResolverNexthopRegUnregProcessing();
}
size_t ResolverNexthopRegUnregListSize(const string &instance) {
BgpTable *table = GetTable(instance);
return table->path_resolver()->GetResolverNexthopRegUnregListSize();
}
void DisableResolverNexthopUpdateProcessing(const string &instance) {
BgpTable *table = GetTable(instance);
table->path_resolver()->DisableResolverNexthopUpdateProcessing();
}
void EnableResolverNexthopUpdateProcessing(const string &instance) {
BgpTable *table = GetTable(instance);
table->path_resolver()->EnableResolverNexthopUpdateProcessing();
}
size_t ResolverNexthopUpdateListSize(const string &instance) {
BgpTable *table = GetTable(instance);
return table->path_resolver()->GetResolverNexthopUpdateListSize();
}
void DisableResolverPathUpdateProcessing(const string &instance) {
BgpTable *table = GetTable(instance);
table->path_resolver()->DisableResolverPathUpdateProcessing();
}
void EnableResolverPathUpdateProcessing(const string &instance) {
BgpTable *table = GetTable(instance);
table->path_resolver()->EnableResolverPathUpdateProcessing();
}
void PauseResolverPathUpdateProcessing(const string &instance) {
BgpTable *table = GetTable(instance);
table->path_resolver()->PauseResolverPathUpdateProcessing();
}
void ResumeResolverPathUpdateProcessing(const string &instance) {
BgpTable *table = GetTable(instance);
table->path_resolver()->ResumeResolverPathUpdateProcessing();
}
size_t ResolverPathUpdateListSize(const string &instance) {
BgpTable *table = GetTable(instance);
return table->path_resolver()->GetResolverPathUpdateListSize();
}
BgpRoute *RouteLookup(const string &instance_name, const string &prefix) {
BgpTable *bgp_table = GetTable(instance_name);
TableT *table = dynamic_cast<TableT *>(bgp_table);
EXPECT_TRUE(table != NULL);
if (table == NULL) {
return NULL;
}
boost::system::error_code error;
PrefixT nlri = PrefixT::FromString(prefix, &error);
EXPECT_FALSE(error);
typename TableT::RequestKey key(nlri, NULL);
BgpRoute *rt = dynamic_cast<BgpRoute *>(table->Find(&key));
return rt;
}
vector<uint32_t> GetSGIDListFromPath(const BgpPath *path) {
const ExtCommunity *ext_comm = path->GetAttr()->ext_community();
vector<uint32_t> list;
if (!ext_comm)
return list;
BOOST_FOREACH(const ExtCommunity::ExtCommunityValue &comm,
ext_comm->communities()) {
if (!ExtCommunity::is_security_group(comm))
continue;
SecurityGroup security_group(comm);
list.push_back(security_group.security_group_id());
}
sort(list.begin(), list.end());
return list;
}
set<string> GetTunnelEncapListFromPath(const BgpPath *path) {
const ExtCommunity *ext_comm = path->GetAttr()->ext_community();
set<string> list;
if (!ext_comm)
return list;
BOOST_FOREACH(const ExtCommunity::ExtCommunityValue &comm,
ext_comm->communities()) {
if (!ExtCommunity::is_tunnel_encap(comm))
continue;
TunnelEncap encap(comm);
list.insert(encap.ToXmppString());
}
return list;
}
LoadBalance GetLoadBalanceFromPath(const BgpPath *path) {
const ExtCommunity *ext_comm = path->GetAttr()->ext_community();
if (!ext_comm)
return LoadBalance();
BOOST_FOREACH(const ExtCommunity::ExtCommunityValue &comm,
ext_comm->communities()) {
if (!ExtCommunity::is_load_balance(comm))
continue;
return LoadBalance(comm);
}
return LoadBalance();
}
vector<uint32_t> GetCommunityListFromPath(const BgpPath *path) {
const Community *comm = path->GetAttr()->community();
vector<uint32_t> list = comm ? comm->communities() : vector<uint32_t>();
sort(list.begin(), list.end());
return list;
}
vector<uint16_t> GetAsListFromPath(const BgpPath *path) {
vector<uint16_t> list;
const AsPath *aspath = path->GetAttr()->as_path();
const AsPathSpec &aspath_spec = aspath->path();
if (aspath_spec.path_segments.size() != 1)
return list;
if (aspath_spec.path_segments[0] == NULL)
return list;
if (aspath_spec.path_segments[0]->path_segment_type !=
AsPathSpec::PathSegment::AS_SEQUENCE)
return list;
list = aspath_spec.path_segments[0]->path_segment;
return list;
}
bool MatchPathAttributes(const BgpPath *path, const string &path_id,
uint32_t label, const vector<uint32_t> &sgid_list,
const set<string> &encap_list, const LoadBalance &lb, uint32_t med,
const CommunitySpec &comm_spec, const vector<uint16_t> &as_list) {
const BgpAttr *attr = path->GetAttr();
if (attr->nexthop().to_v4().to_string() != path_id)
return false;
if (label && path->GetLabel() != label)
return false;
if (sgid_list.size()) {
vector<uint32_t> path_sgid_list = GetSGIDListFromPath(path);
if (path_sgid_list.size() != sgid_list.size())
return false;
for (vector<uint32_t>::const_iterator
it1 = path_sgid_list.begin(), it2 = sgid_list.begin();
it1 != path_sgid_list.end() && it2 != sgid_list.end();
++it1, ++it2) {
if (*it1 != *it2)
return false;
}
}
if (encap_list.size()) {
set<string> path_encap_list = GetTunnelEncapListFromPath(path);
if (path_encap_list != encap_list)
return false;
}
if (!lb.IsDefault()) {
LoadBalance path_lb = GetLoadBalanceFromPath(path);
if (path_lb != lb)
return false;
}
if (attr->med() != med) {
return false;
}
vector<uint32_t> path_comm_list = GetCommunityListFromPath(path);
if (path_comm_list != comm_spec.communities) {
return false;
}
vector<uint16_t> path_as_list = GetAsListFromPath(path);
if (path_as_list != as_list) {
return false;
}
return true;
}
bool CheckPathAttributes(const string &instance, const string &prefix,
const string &path_id, int label, const vector<uint32_t> &sgid_list,
const set<string> &encap_list, const LoadBalance &lb, uint32_t med,
const CommunitySpec &comm_spec, const vector<uint16_t> &as_list) {
task_util::TaskSchedulerLock lock;
BgpRoute *route = RouteLookup(instance, prefix);
if (!route)
return false;
for (Route::PathList::iterator it = route->GetPathList().begin();
it != route->GetPathList().end(); ++it) {
const BgpPath *path = static_cast<const BgpPath *>(it.operator->());
if ((path->GetFlags() & BgpPath::ResolvedPath) == 0)
continue;
if (BgpPath::PathIdString(path->GetPathId()) != path_id)
continue;
if (MatchPathAttributes(path, path_id, label, sgid_list,
encap_list, lb, med, comm_spec, as_list)) {
return true;
}
return false;
}
return false;
}
bool CheckPathNoExists(const string &instance, const string &prefix,
const string &path_id) {
task_util::TaskSchedulerLock lock;
BgpRoute *route = RouteLookup(instance, prefix);
if (!route)
return true;
for (Route::PathList::iterator it = route->GetPathList().begin();
it != route->GetPathList().end(); ++it) {
const BgpPath *path = static_cast<const BgpPath *>(it.operator->());
if ((path->GetFlags() & BgpPath::ResolvedPath) == 0)
continue;
if (BgpPath::PathIdString(path->GetPathId()) == path_id)
return false;
}
return true;
}
void VerifyPathAttributes(const string &instance, const string &prefix,
const string &path_id, uint32_t label) {
TASK_UTIL_EXPECT_TRUE(CheckPathAttributes(instance, prefix,
path_id, label, vector<uint32_t>(), set<string>(), LoadBalance(),
0, CommunitySpec(), vector<uint16_t>()));
}
void VerifyPathAttributes(const string &instance, const string &prefix,
const string &path_id, uint32_t label, const set<string> &encap_list) {
TASK_UTIL_EXPECT_TRUE(CheckPathAttributes(instance, prefix,
path_id, label, vector<uint32_t>(), encap_list, LoadBalance(),
0, CommunitySpec(), vector<uint16_t>()));
}
void VerifyPathAttributes(const string &instance, const string &prefix,
const string &path_id, uint32_t label,
const vector<uint32_t> &sgid_list) {
TASK_UTIL_EXPECT_TRUE(CheckPathAttributes(instance, prefix,
path_id, label, sgid_list, set<string>(), LoadBalance(),
0, CommunitySpec(), vector<uint16_t>()));
}
void VerifyPathAttributes(const string &instance, const string &prefix,
const string &path_id, uint32_t label, const LoadBalance &lb) {
TASK_UTIL_EXPECT_TRUE(CheckPathAttributes(instance, prefix,
path_id, label, vector<uint32_t>(), set<string>(), lb,
0, CommunitySpec(), vector<uint16_t>()));
}
void VerifyPathAttributes(const string &instance, const string &prefix,
const string &path_id, uint32_t label, uint32_t med) {
TASK_UTIL_EXPECT_TRUE(CheckPathAttributes(instance, prefix,
path_id, label, vector<uint32_t>(), set<string>(), LoadBalance(),
med, CommunitySpec(), vector<uint16_t>()));
}
void VerifyPathAttributes(const string &instance, const string &prefix,
const string &path_id, uint32_t label, const CommunitySpec &comm_spec) {
TASK_UTIL_EXPECT_TRUE(CheckPathAttributes(instance, prefix,
path_id, label, vector<uint32_t>(), set<string>(), LoadBalance(),
0, comm_spec, vector<uint16_t>()));
}
void VerifyPathAttributes(const string &instance, const string &prefix,
const string &path_id, uint32_t label,
const vector<uint16_t> &as_list) {
TASK_UTIL_EXPECT_TRUE(CheckPathAttributes(instance, prefix,
path_id, label, vector<uint32_t>(), set<string>(), LoadBalance(),
0, CommunitySpec(), as_list));
}
void VerifyPathNoExists(const string &instance, const string &prefix,
const string &path_id) {
TASK_UTIL_EXPECT_TRUE(CheckPathNoExists(instance, prefix, path_id));
}
template <typename RespT>
void ValidateResponse(Sandesh *sandesh,
const string &instance, size_t path_count, size_t nexthop_count) {
RespT *resp = dynamic_cast<RespT *>(sandesh);
TASK_UTIL_EXPECT_NE((RespT *) NULL, resp);
TASK_UTIL_EXPECT_EQ(1, resp->get_resolvers().size());
const ShowPathResolver &spr = resp->get_resolvers().at(0);
TASK_UTIL_EXPECT_TRUE(spr.get_name().find(instance) != string::npos);
TASK_UTIL_EXPECT_EQ(path_count, spr.get_path_count());
TASK_UTIL_EXPECT_EQ(0, spr.get_modified_path_count());
TASK_UTIL_EXPECT_EQ(nexthop_count, spr.get_nexthop_count());
TASK_UTIL_EXPECT_EQ(0, spr.get_modified_nexthop_count());
cout << spr.log() << endl;
validate_done_ = true;
}
void VerifyPathResolverSandesh(const string &instance, size_t path_count,
size_t nexthop_count) {
BgpSandeshContext sandesh_context;
sandesh_context.bgp_server = bgp_server_.get();
sandesh_context.xmpp_peer_manager = NULL;
Sandesh::set_client_context(&sandesh_context);
Sandesh::set_response_callback(boost::bind(
&PathResolverTest<T>::ValidateResponse<ShowPathResolverResp>,
this, _1, instance, path_count, nexthop_count));
ShowPathResolverReq *req = new ShowPathResolverReq;
req->set_search_string(instance);
validate_done_ = false;
req->HandleRequest();
req->Release();
TASK_UTIL_EXPECT_EQ(true, validate_done_);
Sandesh::set_response_callback(boost::bind(
&PathResolverTest<T>::ValidateResponse<ShowPathResolverSummaryResp>,
this, _1, instance, path_count, nexthop_count));
ShowPathResolverSummaryReq *sreq = new ShowPathResolverSummaryReq;
sreq->set_search_string(instance);
validate_done_ = false;
sreq->HandleRequest();
sreq->Release();
TASK_UTIL_EXPECT_EQ(true, validate_done_);
}
EventManager evm_;
BgpServerTestPtr bgp_server_;
Address::Family family_;
string ipv6_prefix_;
PeerMock *bgp_peer1_;
PeerMock *bgp_peer2_;
PeerMock *xmpp_peer1_;
PeerMock *xmpp_peer2_;
bool validate_done_;
};
// Specialization of GetFamily for INET.
template<>
Address::Family PathResolverTest<InetDefinition>::GetFamily() const {
return Address::INET;
}
// Specialization of GetFamily for INET6.
template<>
Address::Family PathResolverTest<Inet6Definition>::GetFamily() const {
return Address::INET6;
}
// Instantiate fixture class template for each TypeDefinition.
typedef ::testing::Types <InetDefinition, Inet6Definition> TypeDefinitionList;
TYPED_TEST_CASE(PathResolverTest, TypeDefinitionList);
//
// Add BGP path before XMPP path.
//
TYPED_TEST(PathResolverTest, SinglePrefix1) {
PeerMock *bgp_peer1 = this->bgp_peer1_;
PeerMock *xmpp_peer1 = this->xmpp_peer1_;
this->AddBgpPath(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()));
this->AddXmppPath(xmpp_peer1, "blue",
this->BuildPrefix(bgp_peer1->ToString(), 32),
this->BuildNextHopAddress("172.16.1.1"), 10000);
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000);
this->DeleteXmppPath(xmpp_peer1, "blue",
this->BuildPrefix(bgp_peer1->ToString(), 32));
this->VerifyPathNoExists("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"));
this->DeleteBgpPath(bgp_peer1, "blue", this->BuildPrefix(1));
}
//
// Add BGP path after XMPP path.
//
TYPED_TEST(PathResolverTest, SinglePrefix2) {
PeerMock *bgp_peer1 = this->bgp_peer1_;
PeerMock *xmpp_peer1 = this->xmpp_peer1_;
this->AddXmppPath(xmpp_peer1, "blue",
this->BuildPrefix(bgp_peer1->ToString(), 32),
this->BuildNextHopAddress("172.16.1.1"), 10000);
this->AddBgpPath(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()));
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000);
this->DeleteBgpPath(bgp_peer1, "blue", this->BuildPrefix(1));
this->VerifyPathNoExists("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"));
this->DeleteXmppPath(xmpp_peer1, "blue",
this->BuildPrefix(bgp_peer1->ToString(), 32));
}
//
// Add BGP path after XMPP path.
// Delete and add BGP path multiple times when path update list processing is
// disabled.
//
TYPED_TEST(PathResolverTest, SinglePrefixAddDelete) {
PeerMock *bgp_peer1 = this->bgp_peer1_;
PeerMock *xmpp_peer1 = this->xmpp_peer1_;
this->AddXmppPath(xmpp_peer1, "blue",
this->BuildPrefix(bgp_peer1->ToString(), 32),
this->BuildNextHopAddress("172.16.1.1"), 10000);
this->AddBgpPath(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()));
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000);
TASK_UTIL_EXPECT_EQ(0, this->ResolverPathUpdateListSize("blue"));
this->DisableResolverPathUpdateProcessing("blue");
this->DeleteBgpPath(bgp_peer1, "blue", this->BuildPrefix(1));
TASK_UTIL_EXPECT_EQ(1, this->ResolverPathUpdateListSize("blue"));
this->AddBgpPath(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()));
TASK_UTIL_EXPECT_EQ(2, this->ResolverPathUpdateListSize("blue"));
this->DeleteBgpPath(bgp_peer1, "blue", this->BuildPrefix(1));
task_util::WaitForIdle();
TASK_UTIL_EXPECT_EQ(2, this->ResolverPathUpdateListSize("blue"));
this->AddBgpPath(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()));
TASK_UTIL_EXPECT_EQ(3, this->ResolverPathUpdateListSize("blue"));
this->DeleteBgpPath(bgp_peer1, "blue", this->BuildPrefix(1));
task_util::WaitForIdle();
TASK_UTIL_EXPECT_EQ(3, this->ResolverPathUpdateListSize("blue"));
this->EnableResolverPathUpdateProcessing("blue");
TASK_UTIL_EXPECT_EQ(0, this->ResolverPathUpdateListSize("blue"));
this->VerifyPathNoExists("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"));
this->DeleteXmppPath(xmpp_peer1, "blue",
this->BuildPrefix(bgp_peer1->ToString(), 32));
}
//
// Change BGP path med after BGP path has been resolved.
//
TYPED_TEST(PathResolverTest, SinglePrefixChangeBgpPath1) {
PeerMock *bgp_peer1 = this->bgp_peer1_;
PeerMock *xmpp_peer1 = this->xmpp_peer1_;
this->AddXmppPath(xmpp_peer1, "blue",
this->BuildPrefix(bgp_peer1->ToString(), 32),
this->BuildNextHopAddress("172.16.1.1"), 10000);
this->AddBgpPath(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()));
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000);
this->AddBgpPathWithMed(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()), 100);
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000, 100);
this->AddBgpPath(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()));
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000);
this->AddBgpPathWithMed(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()), 200);
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000, 200);
this->AddBgpPathWithMed(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()), 300);
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000, 300);
this->DeleteBgpPath(bgp_peer1, "blue", this->BuildPrefix(1));
this->VerifyPathNoExists("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"));
this->DeleteXmppPath(xmpp_peer1, "blue",
this->BuildPrefix(bgp_peer1->ToString(), 32));
}
//
// Change BGP path communities after BGP path has been resolved.
//
TYPED_TEST(PathResolverTest, SinglePrefixChangeBgpPath2) {
PeerMock *bgp_peer1 = this->bgp_peer1_;
PeerMock *xmpp_peer1 = this->xmpp_peer1_;
this->AddXmppPath(xmpp_peer1, "blue",
this->BuildPrefix(bgp_peer1->ToString(), 32),
this->BuildNextHopAddress("172.16.1.1"), 10000);
this->AddBgpPath(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()));
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000);
vector<uint32_t> comm_list1 = list_of(0xFFFFA101)(0xFFFFA102)(0xFFFFA103);
CommunitySpec comm_spec1;
comm_spec1.communities = comm_list1;
this->AddBgpPathWithCommunities(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()), comm_list1);
this->VerifyPathAttributes("blue", this->BuildPrefix(1),
this->BuildNextHopAddress("172.16.1.1"), 10000, comm_spec1);
this->AddBgpPath(bgp_peer1, "blue", this->BuildPrefix(1),
this->BuildHostAddress(bgp_peer1->ToString()));
this->VerifyPathAttributes("blue", this->BuildPrefix(1),