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dns_bind_test.cc
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dns_bind_test.cc
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/*
* Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
*/
#include <fstream>
#include <boost/algorithm/string/replace.hpp>
#include <boost/bind.hpp>
#include "base/logging.h"
#include "base/task.h"
#include "base/test/task_test_util.h"
#include "db/db.h"
#include "db/db_graph.h"
#include "db/test/db_test_util.h"
#include "ifmap/ifmap_link_table.h"
#include "ifmap/ifmap_node.h"
#include "ifmap/ifmap_server_table.h"
#include "ifmap/ifmap_server_parser.h"
#include "ifmap/test/ifmap_test_util.h"
#include "io/event_manager.h"
#include "schema/vnc_cfg_types.h"
#include "cmn/dns.h"
#include "bind/bind_util.h"
#include "cfg/dns_config.h"
#include "cfg/dns_config.h"
#include "cfg/dns_config_parser.h"
#include "testing/gunit.h"
#include "mgr/dns_mgr.h"
#include "bind/named_config.h"
using namespace std;
class NamedConfigTest : public NamedConfig {
public:
NamedConfigTest(const std::string &conf_dir, const std::string &conf_file) :
NamedConfig(conf_dir, conf_file, "/var/log/named/bind.log",
"rndc.conf", "xvysmOR8lnUQRBcunkC6vg==", "100M") {}
static void Init() {
assert(singleton_ == NULL);
singleton_ = new NamedConfigTest(".", "named.conf");
singleton_->Reset();
}
static void Shutdown() {
delete singleton_;
singleton_ = NULL;
remove("./named.conf");
remove("./rndc.conf");
}
virtual void UpdateNamedConf(const VirtualDnsConfig *updated_vdns) {
CreateNamedConf(updated_vdns);
}
std::string GetZoneFileName(const std::string &vdns,
const std::string &name) {
if (name.size() && name.at(name.size() - 1) == '.')
return (name + "zone");
else
return (name + ".zone");
}
std::string GetZoneFilePath(const std::string &vdns,
const string &name) {
return (named_config_dir_ + GetZoneFileName("", name));
}
std::string GetZoneFilePath(const string &name) {
return GetZoneFilePath("", name);
}
std::string GetResolveFile() { return ""; }
};
static bool FileExists(const char *file) {
ifstream f(file);
if (f.is_open()) {
return true;
}
return false;
}
static string FileRead(const string &filename) {
ifstream file(filename.c_str());
string content((istreambuf_iterator<char>(file)),
istreambuf_iterator<char>());
return content;
}
static bool FilesEqual(const char *file1, const char *file2) {
filebuf *pbuf1, *pbuf2;
ifstream f1(file1), f2(file2);
long size1, size2;
char *buf1, *buf2;
int a = 0;
// get pointer to associated buffer object
pbuf1=f1.rdbuf();
pbuf2=f2.rdbuf();
if (f1.is_open()) {
a++;
}
if (f2.is_open()) {
a++;
}
// get file size using buffer's members
size1=pbuf1->pubseekoff(0,ios::end,ios::in);
size2=pbuf2->pubseekoff(0,ios::end,ios::in);
if (size1 != size2) {
f1.close();
f2.close();
return false;
}
pbuf1->pubseekpos(0,ios::in);
pbuf2->pubseekpos(0,ios::in);
// allocate memory to contain file data
buf1 = new char[size1];
buf2 = new char[size2];
// get file data
pbuf1->sgetn(buf1, size1);
pbuf2->sgetn(buf2, size2);
f1.close();
f2.close();
bool ret = false;
if (memcmp(buf1, buf2, size2) == 0) {
ret = true;
}
delete[] buf1;
delete[] buf2;
return ret;
}
class DnsBindTest : public ::testing::Test {
protected:
DnsBindTest() : parser_(&db_) {
}
virtual void SetUp() {
IFMapLinkTable_Init(&db_, &db_graph_);
vnc_cfg_Server_ModuleInit(&db_, &db_graph_);
NamedConfigTest::Init();
Dns::SetDnsManager(&dns_manager_);
dns_manager_.config_mgr_.Initialize(&db_, &db_graph_);
dns_manager_.bind_status_.named_pid_ = 0;
}
virtual void TearDown() {
task_util::WaitForIdle();
dns_manager_.bind_status_.named_pid_ = -1;
dns_manager_.Shutdown();
NamedConfigTest::Shutdown();
// dns_manager_.GetConfigManager().Terminate();
task_util::WaitForIdle();
db_util::Clear(&db_);
}
DB db_;
DBGraph db_graph_;
DnsManager dns_manager_;
DnsConfigParser parser_;
};
namespace {
#if 0
TEST_F(DnsBindTest, Config) {
string content = FileRead("controller/src/dns/testdata/config_test_1.xml");
EXPECT_TRUE(parser_.Parse(content));
task_util::WaitForIdle();
NamedConfigTest *cfg = static_cast<NamedConfigTest *>(NamedConfig::GetNamedConfigObject());
string dns_domains[] = {
"contrail.juniper.net",
"test.example.com",
"contrail.juniper.com",
"2.1.1.in-addr.arpa",
"3.2.1.in-addr.arpa",
"6.5.4.in-addr.arpa",
"3.2.2.in-addr.arpa",
};
EXPECT_TRUE(FilesEqual(cfg->GetConfFilePath().c_str(),
"controller/src/dns/testdata/named.conf.1"));
string s1 = cfg->GetZoneFilePath(dns_domains[0]);
EXPECT_TRUE(FilesEqual(s1.c_str(),
"controller/src/dns/testdata/contrail.juniper.net.zone.1"));
string s2 = cfg->GetZoneFilePath(dns_domains[1]);
EXPECT_TRUE(FilesEqual(s2.c_str(),
"controller/src/dns/testdata/test.example.com.zone.1"));
s1 = cfg->GetZoneFilePath(dns_domains[3]);
EXPECT_TRUE(FilesEqual(s1.c_str(),
"controller/src/dns/testdata/2.1.1.in-addr.arpa.zone"));
for (int i = 0; i < 3; i++) {
s1 = cfg->GetZoneFilePath(dns_domains[i+4]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
const char config_change[] = "\
<config>\
<virtual-DNS name='test-DNS' domain='default-domain'>\
<domain-name>contrail.juniper.com</domain-name>\
<dynamic-records-from-client>true</dynamic-records-from-client>\
<record-order>fixed</record-order>\
<default-ttl-seconds>120</default-ttl-seconds>\
<next-virtual-DNS>juniper.com</next-virtual-DNS>\
</virtual-DNS>\
</config>\
";
EXPECT_TRUE(parser_.Parse(config_change));
task_util::WaitForIdle();
EXPECT_TRUE(FilesEqual(cfg->GetConfFilePath().c_str(),
"controller/src/dns/testdata/named.conf.2"));
s1 = cfg->GetZoneFilePath(dns_domains[2]);
EXPECT_TRUE(FilesEqual(s1.c_str(),
"controller/src/dns/testdata/contrail.juniper.com.zone.1"));
s2 = cfg->GetZoneFilePath(dns_domains[1]);
EXPECT_TRUE(FilesEqual(s2.c_str(),
"controller/src/dns/testdata/test.example.com.zone.1"));
boost::replace_all(content, "<config>", "<delete>");
boost::replace_all(content, "</config>", "</delete>");
EXPECT_TRUE(parser_.Parse(content));
task_util::WaitForIdle();
EXPECT_TRUE(FilesEqual(cfg->GetConfFilePath().c_str(),
"controller/src/dns/testdata/named.conf.3"));
for (int i = 0; i < 4; i++) {
s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_FALSE(FileExists(s1.c_str()));
}
}
#endif
TEST_F(DnsBindTest, Reordered) {
string content = FileRead("controller/src/dns/testdata/config_test_2.xml");
EXPECT_TRUE(parser_.Parse(content));
task_util::WaitForIdle();
NamedConfigTest *cfg = static_cast<NamedConfigTest *>(NamedConfig::GetNamedConfigObject());
string dns_domains[] = {
"contrail.juniper.net",
"test.example.com",
"test.juniper.net",
"test1.juniper.net",
"192.1.1.in-addr.arpa",
"193.1.1.in-addr.arpa",
"13.2.12.in-addr.arpa",
"0.3.13.in-addr.arpa",
"1.3.13.in-addr.arpa",
"2.3.13.in-addr.arpa",
"3.3.13.in-addr.arpa",
"3.2.1.in-addr.arpa",
"6.5.4.in-addr.arpa",
"64.3.2.2.in-addr.arpa",
"65.3.2.2.in-addr.arpa",
"66.3.2.2.in-addr.arpa",
"67.3.2.2.in-addr.arpa",
};
EXPECT_TRUE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.4"));
for (int i = 0; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
EXPECT_TRUE(FileExists("rndc.conf"));
EXPECT_TRUE(FilesEqual("rndc.conf",
"controller/src/dns/testdata/rndc.conf"));
// change external-visible and reverse_resolution fields to false
boost::replace_all(content, "true", "false");
EXPECT_TRUE(parser_.Parse(content));
task_util::WaitForIdle();
EXPECT_TRUE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.rr_ext_disabled"));
// Now we create all zones irrespective of reverse_resolution
for (int i = 0; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
// change external-visible and reverse_resolution fields to true
boost::replace_all(content, "false", "true");
EXPECT_TRUE(parser_.Parse(content));
task_util::WaitForIdle();
EXPECT_TRUE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.4"));
for (int i = 0; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
const char config_change[] = "\
<config>\
<virtual-network-network-ipam ipam='ipam2' vn='vn3'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>2.2.3.64</ip-prefix> \
<ip-prefix-len>30</ip-prefix-len> \
</subnet> \
<default-gateway>2.2.3.254</default-gateway> \
</ipam-subnets> \
<ipam-subnets> \
<subnet> \
<ip-prefix>25.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>25.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
</config>\
";
EXPECT_TRUE(parser_.Parse(config_change));
task_util::WaitForIdle();
for (int i = 0; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
string zone = "3.2.25.in-addr.arpa";
string s1 = cfg->GetZoneFilePath(zone);
EXPECT_TRUE(FileExists(s1.c_str()));
EXPECT_TRUE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.5"));
const char config_change_1[] = "\
<config>\
<virtual-network-network-ipam ipam='ipam1' vn='vn1'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>1.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>1.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<virtual-network-network-ipam ipam='ipam4' vn='vn8'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>129.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>129.2.3.254</default-gateway> \
</ipam-subnets> \
<ipam-subnets> \
<subnet> \
<ip-prefix>130.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>130.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<virtual-network-network-ipam ipam='ipam2' vn='vn3'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>25.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>25.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<virtual-network-network-ipam ipam='ipam4' vn='vn4'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>13.3.0.0</ip-prefix> \
<ip-prefix-len>22</ip-prefix-len> \
</subnet> \
<default-gateway>13.3.13.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
</config>\
";
string new_dns_domains[] = {
"3.2.129.in-addr.arpa",
"3.2.130.in-addr.arpa",
"3.2.25.in-addr.arpa",
};
EXPECT_TRUE(parser_.Parse(config_change_1));
task_util::WaitForIdle();
EXPECT_TRUE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.6"));
for (int i = 0; i < 12; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
for (int i = 0; i < 3; i++) {
string s1 = cfg->GetZoneFilePath(new_dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
for (int i = 12; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_FALSE(FileExists(s1.c_str()));
}
const char config_change_2[] = "\
<delete>\
<virtual-network-network-ipam ipam='ipam4' vn='vn8'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>129.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>129.2.3.254</default-gateway> \
</ipam-subnets> \
<ipam-subnets> \
<subnet> \
<ip-prefix>130.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>130.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<virtual-network-network-ipam ipam='ipam4' vn='vn7'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>12.2.13.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>12.2.13.254</default-gateway> \
</ipam-subnets> \
<ipam-subnets> \
<subnet> \
<ip-prefix>13.3.0.0</ip-prefix> \
<ip-prefix-len>22</ip-prefix-len> \
</subnet> \
<default-gateway>13.3.13.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
</delete>\
";
EXPECT_TRUE(parser_.Parse(config_change_2));
task_util::WaitForIdle();
EXPECT_TRUE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.7"));
const char config_change_3[] = "\
<delete>\
<virtual-network-network-ipam ipam='ipam4' vn='vn4'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>13.3.0.0</ip-prefix> \
<ip-prefix-len>22</ip-prefix-len> \
</subnet> \
<default-gateway>13.3.13.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<network-ipam name='ipam4'> \
<ipam-method>dhcp</ipam-method> \
<ipam-dns-method>virtual-dns-server</ipam-dns-method> \
<ipam-dns-server> \
<virtual-dns-server-name>last-DNS1</virtual-dns-server-name> \
</ipam-dns-server> \
<dhcp-option-list></dhcp-option-list> \
</network-ipam> \
</delete>\
";
string deleted_domains[] = {
"3.2.129.in-addr.arpa",
"3.2.130.in-addr.arpa",
"13.2.12.in-addr.arpa",
"0.3.13.in-addr.arpa",
"1.3.13.in-addr.arpa",
"2.3.13.in-addr.arpa",
"3.3.13.in-addr.arpa",
};
string remaining_domains[] = {
"3.2.25.in-addr.arpa",
"192.1.1.in-addr.arpa",
"193.1.1.in-addr.arpa",
"3.2.1.in-addr.arpa",
};
EXPECT_TRUE(parser_.Parse(config_change_3));
task_util::WaitForIdle();
EXPECT_TRUE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.8"));
for (int i = 0; i < 7; i++) {
string s1 = cfg->GetZoneFilePath(deleted_domains[i]);
EXPECT_FALSE(FileExists(s1.c_str()));
}
for (int i = 0; i < 4; i++) {
string s1 = cfg->GetZoneFilePath(remaining_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
const char config_change_4[] = "\
<config>\
<network-ipam name='ipam1'> \
<ipam-method>dhcp</ipam-method> \
<ipam-dns-method>virtual-dns-server</ipam-dns-method> \
<ipam-dns-server> \
<virtual-dns-server-name>test-DNS</virtual-dns-server-name> \
</ipam-dns-server> \
<dhcp-option-list></dhcp-option-list> \
</network-ipam> \
</config>\
";
EXPECT_TRUE(parser_.Parse(config_change_4));
task_util::WaitForIdle();
boost::replace_all(content, "<config>", "<delete>");
boost::replace_all(content, "</config>", "</delete>");
EXPECT_TRUE(parser_.Parse(content));
task_util::WaitForIdle();
for (int i = 0; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_FALSE(FileExists(s1.c_str()));
}
for (int i = 0; i < 3; i++) {
string s1 = cfg->GetZoneFilePath(new_dns_domains[i]);
EXPECT_FALSE(FileExists(s1.c_str()));
}
}
TEST_F(DnsBindTest, ReorderedExternalReverseResolutionDisabled) {
string content = FileRead("controller/src/dns/testdata/config_test_2_disable_flags.xml");
EXPECT_TRUE(parser_.Parse(content));
task_util::WaitForIdle();
NamedConfigTest *cfg = static_cast<NamedConfigTest *>(NamedConfig::GetNamedConfigObject());
string dns_domains[] = {
"contrail.juniper.net",
"test.example.com",
"test.juniper.net",
"test1.juniper.net",
"192.1.1.in-addr.arpa",
"193.1.1.in-addr.arpa",
"13.2.12.in-addr.arpa",
"0.3.13.in-addr.arpa",
"1.3.13.in-addr.arpa",
"2.3.13.in-addr.arpa",
"3.3.13.in-addr.arpa",
"3.2.1.in-addr.arpa",
"6.5.4.in-addr.arpa",
"64.3.2.2.in-addr.arpa",
"65.3.2.2.in-addr.arpa",
"66.3.2.2.in-addr.arpa",
"67.3.2.2.in-addr.arpa",
};
EXPECT_TRUE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.rr_ext_disabled"));
for (int i = 0; i < 4; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
for (int i = 4; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
EXPECT_TRUE(FileExists("rndc.conf"));
EXPECT_TRUE(FilesEqual("rndc.conf",
"controller/src/dns/testdata/rndc.conf"));
// Case1 : Add subnet to an ipam
const char config_change[] = "\
<config>\
<virtual-network-network-ipam ipam='ipam2' vn='vn3'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>2.2.3.64</ip-prefix> \
<ip-prefix-len>30</ip-prefix-len> \
</subnet> \
<default-gateway>2.2.3.254</default-gateway> \
</ipam-subnets> \
<ipam-subnets> \
<subnet> \
<ip-prefix>25.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>25.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
</config>\
";
EXPECT_TRUE(parser_.Parse(config_change));
task_util::WaitForIdle();
for (int i = 0; i < 4; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
for (int i = 4; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
string zone = "3.2.25.in-addr.arpa";
string s1 = cfg->GetZoneFilePath(zone);
EXPECT_TRUE(FileExists(s1.c_str()));
EXPECT_FALSE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.rr_ext_disabled.2"));
// Case 2: Add and Delete a subnet from an ipam
const char config_change_1[] = "\
<config>\
<virtual-network-network-ipam ipam='ipam1' vn='vn1'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>1.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>1.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<virtual-network-network-ipam ipam='ipam4' vn='vn8'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>129.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>129.2.3.254</default-gateway> \
</ipam-subnets> \
<ipam-subnets> \
<subnet> \
<ip-prefix>130.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>130.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<virtual-network-network-ipam ipam='ipam2' vn='vn3'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>25.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>25.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<virtual-network-network-ipam ipam='ipam4' vn='vn4'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>13.3.0.0</ip-prefix> \
<ip-prefix-len>22</ip-prefix-len> \
</subnet> \
<default-gateway>13.3.13.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
</config>\
";
string new_dns_domains[] = {
"3.2.129.in-addr.arpa",
"3.2.130.in-addr.arpa",
};
EXPECT_TRUE(parser_.Parse(config_change_1));
task_util::WaitForIdle();
EXPECT_FALSE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.rr_ext_disabled"));
for (int i = 0; i < 12; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
for (int i = 12; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_FALSE(FileExists(s1.c_str()));
}
for (int i = 0; i < 2; i++) {
string s1 = cfg->GetZoneFilePath(new_dns_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
const char config_change_2[] = "\
<delete>\
<virtual-network-network-ipam ipam='ipam4' vn='vn8'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>129.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>129.2.3.254</default-gateway> \
</ipam-subnets> \
<ipam-subnets> \
<subnet> \
<ip-prefix>130.2.3.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>130.2.3.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<virtual-network-network-ipam ipam='ipam4' vn='vn7'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>12.2.13.0</ip-prefix> \
<ip-prefix-len>24</ip-prefix-len> \
</subnet> \
<default-gateway>12.2.13.254</default-gateway> \
</ipam-subnets> \
<ipam-subnets> \
<subnet> \
<ip-prefix>13.3.0.0</ip-prefix> \
<ip-prefix-len>22</ip-prefix-len> \
</subnet> \
<default-gateway>13.3.13.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
</delete>\
";
EXPECT_TRUE(parser_.Parse(config_change_2));
task_util::WaitForIdle();
string deleted_dns_subnets[] = {
"3.2.129.in-addr.arpa",
"3.2.130.in-addr.arpa",
"13.2.12.in-addr.arpa",
};
for (int i = 0; i < 3; i++) {
string s1 = cfg->GetZoneFilePath(deleted_dns_subnets[i]);
EXPECT_FALSE(FileExists(s1.c_str()));
}
EXPECT_FALSE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.rr_ext_disabled"));
const char config_change_3[] = "\
<delete>\
<virtual-network-network-ipam ipam='ipam4' vn='vn4'> \
<ipam-subnets> \
<subnet> \
<ip-prefix>13.3.0.0</ip-prefix> \
<ip-prefix-len>22</ip-prefix-len> \
</subnet> \
<default-gateway>13.3.13.254</default-gateway> \
</ipam-subnets> \
</virtual-network-network-ipam> \
<network-ipam name='ipam4'> \
<ipam-method>dhcp</ipam-method> \
<ipam-dns-method>virtual-dns-server</ipam-dns-method> \
<ipam-dns-server> \
<virtual-dns-server-name>last-DNS1</virtual-dns-server-name> \
</ipam-dns-server> \
<dhcp-option-list></dhcp-option-list> \
</network-ipam> \
</delete>\
";
string deleted_domains[] = {
"3.2.129.in-addr.arpa",
"3.2.130.in-addr.arpa",
"0.3.13.in-addr.arpa",
"13.2.12.in-addr.arpa",
"1.3.13.in-addr.arpa",
"2.3.13.in-addr.arpa",
"3.3.13.in-addr.arpa",
};
string remaining_domains[] = {
"192.1.1.in-addr.arpa",
"193.1.1.in-addr.arpa",
"3.2.1.in-addr.arpa",
"3.2.25.in-addr.arpa",
};
EXPECT_TRUE(parser_.Parse(config_change_3));
task_util::WaitForIdle();
EXPECT_FALSE(FilesEqual(cfg->named_config_file().c_str(),
"controller/src/dns/testdata/named.conf.rr_ext_disabled"));
for (int i = 0; i < 7; i++) {
string s1 = cfg->GetZoneFilePath(deleted_domains[i]);
EXPECT_FALSE(FileExists(s1.c_str()));
}
for (int i = 0; i < 4; i++) {
string s1 = cfg->GetZoneFilePath(remaining_domains[i]);
EXPECT_TRUE(FileExists(s1.c_str()));
}
const char config_change_4[] = "\
<config>\
<network-ipam name='ipam1'> \
<ipam-method>dhcp</ipam-method> \
<ipam-dns-method>virtual-dns-server</ipam-dns-method> \
<ipam-dns-server> \
<virtual-dns-server-name>test-DNS</virtual-dns-server-name> \
</ipam-dns-server> \
<dhcp-option-list></dhcp-option-list> \
</network-ipam> \
</config>\
";
EXPECT_TRUE(parser_.Parse(config_change_4));
task_util::WaitForIdle();
boost::replace_all(content, "<config>", "<delete>");
boost::replace_all(content, "</config>", "</delete>");
EXPECT_TRUE(parser_.Parse(content));
task_util::WaitForIdle();
for (int i = 0; i < 17; i++) {
string s1 = cfg->GetZoneFilePath(dns_domains[i]);
EXPECT_FALSE(FileExists(s1.c_str()));
}
}
TEST_F(DnsBindTest, DnsClassTest) {
std::string cl = BindUtil::DnsClass(4);
EXPECT_TRUE(cl == "");
}
#define MAX_ITEMS 3
std::string names[MAX_ITEMS] = {"www.google.com",
"www.cnn.com",
"test.example.com",
};
std::string addresses[MAX_ITEMS] = {"1.2.3.4",
"5.6.7.8",
"1.1.2.2",
};
std::string auth_names[MAX_ITEMS] = {"ns.google.com",
"ns.cnn.com",
"ns1.test.example.com"
};
// Check the parsing of a DNS Request
TEST_F(DnsBindTest, DnsRequestParse) {
uint8_t buf[1024];
DnsItems in, out;
for (int i = 0; i < 3; i++) {
DnsItem item;
item.type = DNS_A_RECORD;
item.name = names[i];
in.push_back(item);
}
dnshdr *dns = (dnshdr *) buf;
BindUtil::BuildDnsHeader(dns, 0x0102, DNS_QUERY_REQUEST, DNS_OPCODE_QUERY,
1, 0, 0, in.size());
uint16_t len = sizeof(dnshdr);
uint8_t *ques = (uint8_t *) (dns + 1);
for (DnsItems::const_iterator it = in.begin(); it != in.end(); ++it) {
ques = BindUtil::AddQuestionSection(ques, (*it).name, (*it).type,
(*it).eclass, len);
}
uint16_t parselen;
EXPECT_TRUE(BindUtil::ParseDnsQuery(buf, len, &parselen, out));
EXPECT_TRUE(parselen == len);
EXPECT_TRUE(in == out);
}
// Check parsing when request has no sections
TEST_F(DnsBindTest, DnsRequestZeroSections) {
uint8_t buf[1024];
DnsItems out;
dnshdr *dns = (dnshdr *) buf;
BindUtil::BuildDnsHeader(dns, 0x0102, DNS_QUERY_REQUEST, DNS_OPCODE_QUERY,
0, 0, 0, 0);
uint16_t len = sizeof(dnshdr);
uint16_t parselen;
// Parsing should fail as there is no data
EXPECT_FALSE(BindUtil::ParseDnsQuery(buf, len, &parselen, out));
}
// Check the parsing of an error DNS Request
TEST_F(DnsBindTest, DnsRequestErrorParse) {
uint8_t buf[1024];
DnsItems in, out;
for (int i = 0; i < 3; i++) {
DnsItem item;
item.type = DNS_A_RECORD;
item.name = names[i];
in.push_back(item);
}
dnshdr *dns = (dnshdr *) buf;
// set the request count to 5000, but dont send that data
BindUtil::BuildDnsHeader(dns, 0x0102, DNS_QUERY_REQUEST, DNS_OPCODE_QUERY,
1, 0, 0, 5000);
uint16_t len = sizeof(dnshdr);
uint8_t *ques = (uint8_t *) (dns + 1);
for (DnsItems::const_iterator it = in.begin(); it != in.end(); ++it) {
ques = BindUtil::AddQuestionSection(ques, (*it).name, (*it).type,
(*it).eclass, len);
}
uint16_t parselen;
// Parsing should fail as data is not correct
EXPECT_FALSE(BindUtil::ParseDnsQuery(buf, len, &parselen, out));
}
// Check the parsing of a DNS Response
TEST_F(DnsBindTest, DnsResponseParse) {
uint8_t buf[1024];
DnsItems out;
int count = 3;
DnsItems ans_in, auth_in, add_in;
for (int i = 0; i < count; i++) {
DnsItem item;
item.eclass = DNS_CLASS_IN;
item.type = DNS_A_RECORD;
item.ttl = 100;
item.name = names[i];
item.data = addresses[i];
ans_in.push_back(item);
item.type = DNS_NS_RECORD;
item.name = auth_names[i];
auth_in.push_back(item);
}
dnshdr *dns = (dnshdr *) buf;
BindUtil::BuildDnsHeader(dns, 0x0102, DNS_QUERY_RESPONSE, DNS_OPCODE_QUERY,
0, 0, 0, 0);
dns->ques_rrcount = htons(count);
dns->ans_rrcount = htons(count);
dns->auth_rrcount = htons(3);
dns->add_rrcount = htons(1);
uint16_t len = sizeof(dnshdr);
uint8_t *ptr = (uint8_t *) (dns + 1);
for (int i = 0; i < count; i++)
ptr = BindUtil::AddQuestionSection(ptr, names[i],
DNS_A_RECORD, DNS_CLASS_IN, len);
for (DnsItems::iterator it = ans_in.begin(); it != ans_in.end(); it++)
ptr = BindUtil::AddAnswerSection(ptr, *it, len);
for (DnsItems::iterator it = auth_in.begin(); it != auth_in.end(); it++)
ptr = BindUtil::AddAnswerSection(ptr, *it, len);
DnsItem add_item;
add_item.eclass = DNS_CLASS_IN;
add_item.type = DNS_TYPE_SOA;
add_item.ttl = 2000;
add_item.soa.primary_ns = auth_names[0];
add_item.soa.mailbox = "mx" + auth_names[0];
add_item.soa.serial = 100;
add_item.soa.refresh = 500;
add_item.soa.expiry = 1000;
add_in.push_back(add_item);
ptr = BindUtil::AddAnswerSection(ptr, add_item, len);
uint16_t xid;
dns_flags flags;
DnsItems ques, ans, auth, add;
EXPECT_TRUE(BindUtil::ParseDnsResponse(buf, len, xid, flags,
ques, ans, auth, add));
EXPECT_TRUE(ans == ans_in);
EXPECT_TRUE(auth == auth_in);
EXPECT_TRUE(add == add_in);
}
// Check the parsing of an error DNS Response
TEST_F(DnsBindTest, DnsResponseErrorParse) {
uint8_t buf[1024];
int count = 3;
DnsItems ans_in, auth_in, add_in;
for (int i = 0; i < count; i++) {
DnsItem item;
item.eclass = DNS_CLASS_IN;
item.type = DNS_A_RECORD;
item.ttl = 100;
item.name = names[i];
item.data = addresses[i];
ans_in.push_back(item);
item.type = DNS_NS_RECORD;
item.name = auth_names[i];
auth_in.push_back(item);
}
dnshdr *dns = (dnshdr *) buf;
BindUtil::BuildDnsHeader(dns, 0x0102, DNS_QUERY_RESPONSE, DNS_OPCODE_QUERY,
0, 0, 0, 0);
dns->ques_rrcount = htons(count);
// send wrong count for answer
dns->ans_rrcount = htons(10);
dns->auth_rrcount = htons(3);
dns->add_rrcount = htons(1);
uint16_t len = sizeof(dnshdr);
uint8_t *ptr = (uint8_t *) (dns + 1);
for (int i = 0; i < count; i++)
ptr = BindUtil::AddQuestionSection(ptr, names[i],
DNS_A_RECORD, DNS_CLASS_IN, len);
for (DnsItems::iterator it = ans_in.begin(); it != ans_in.end(); it++)
ptr = BindUtil::AddAnswerSection(ptr, *it, len);
uint16_t xid;
dns_flags flags;
DnsItems ques, ans, auth, add;
EXPECT_FALSE(BindUtil::ParseDnsResponse(buf, len, xid, flags,
ques, ans, auth, add));
}
// Check the parsing of a DNS Update
TEST_F(DnsBindTest, DnsUpdateParse) {
uint8_t buf[1024];
int count = 2;
DnsItems in;
for (int i = 0; i < count; i++) {