Adding upstream version 1.8.3.upstream/1.8.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 876 insertions, 0 deletions

diff --git a/test-iputils_hh.cc b/test-iputils_hh.cc
new file mode 100644
index 0000000..a299fed
--- /dev/null
+++ b/test-iputils_hh.cc
@@ -0,0 +1,876 @@
+#define BOOST_TEST_DYN_LINK
+#define BOOST_TEST_NO_MAIN
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include <boost/test/unit_test.hpp>
+#include <bitset>
+#include "iputils.hh"
+
+using namespace boost;
+
+BOOST_AUTO_TEST_SUITE(test_iputils_hh)
+
+BOOST_AUTO_TEST_CASE(test_ComboAddress) {
+  ComboAddress local("127.0.0.1", 53);
+  BOOST_CHECK(local==local);
+  BOOST_CHECK_EQUAL(local.sin4.sin_family, AF_INET);
+  BOOST_CHECK_EQUAL(local.sin4.sin_port, htons(53));
+  BOOST_CHECK_EQUAL(local.sin4.sin_addr.s_addr, htonl(0x7f000001UL));
+
+  ComboAddress remote("130.161.33.15", 53);
+  BOOST_CHECK(!(local == remote));
+  BOOST_CHECK_EQUAL(remote.sin4.sin_port, htons(53));
+
+  ComboAddress withport("213.244.168.210:53");
+  BOOST_CHECK_EQUAL(withport.sin4.sin_port, htons(53));
+
+  ComboAddress withportO("213.244.168.210:53", 5300);
+  BOOST_CHECK_EQUAL(withportO.sin4.sin_port, htons(53));
+
+  withport = ComboAddress("[::]:53");
+  BOOST_CHECK_EQUAL(withport.sin4.sin_port, htons(53));
+
+  withport = ComboAddress("[::]:5300", 53);
+  BOOST_CHECK_EQUAL(withport.sin4.sin_port, htons(5300));
+
+  ComboAddress defaultport("213.244.168.210");
+  BOOST_CHECK_EQUAL(defaultport.sin4.sin_port, htons(0));
+
+  defaultport = ComboAddress("[::1]");
+  BOOST_CHECK_EQUAL(defaultport.sin4.sin_port, htons(0));
+
+  defaultport = ComboAddress("::1");
+  BOOST_CHECK_EQUAL(defaultport.sin4.sin_port, htons(0));
+
+  // Verify that 2 'empty' ComboAddresses are equal, used in syncres.hh to
+  // signal auth-zones
+  ComboAddress a = ComboAddress();
+  ComboAddress b = ComboAddress();
+  BOOST_CHECK(a == b);
+
+  // Verify that 2 ComboAddresses are not the same
+  ComboAddress c = ComboAddress("127.0.0.1:53");
+  ComboAddress d = ComboAddress("127.0.0.1:52");
+  ComboAddress e = ComboAddress("127.0.0.2:53");
+
+  BOOST_CHECK(a != c);
+  BOOST_CHECK(c != d);
+  BOOST_CHECK(c != e);
+  BOOST_CHECK(d != e);
+  BOOST_CHECK(!(a != b));
+
+  // Verify that we don't allow invalid port numbers
+  BOOST_CHECK_THROW(ComboAddress("127.0.0.1:70000"), PDNSException); // Port no. too high
+  BOOST_CHECK_THROW(ComboAddress("127.0.0.1:-6"), PDNSException); // Port no. too low
+  BOOST_CHECK_THROW(ComboAddress("[::1]:70000"), PDNSException); // Port no. too high
+  BOOST_CHECK_THROW(ComboAddress("[::1]:-6"), PDNSException); // Port no. too low
+}
+
+BOOST_AUTO_TEST_CASE(test_ComboAddressCompare) {
+  ComboAddress a, b;
+  a.reset();
+  b.reset();
+  BOOST_CHECK(!(a<b));
+  BOOST_CHECK(!(a>b));
+}
+
+BOOST_AUTO_TEST_CASE(test_ComboAddressTruncate) {
+  ComboAddress ca4("130.161.252.29");
+  ca4.truncate(24);
+  BOOST_CHECK_EQUAL(ca4.toString(), "130.161.252.0");
+  ca4.truncate(16);
+  BOOST_CHECK_EQUAL(ca4.toString(), "130.161.0.0");
+
+
+
+  ca4 = ComboAddress("130.161.252.29");
+  ComboAddress orig(ca4);
+  for(int n=32; n; --n) {
+    ca4.truncate(n);
+
+    uint32_t p;
+    memcpy(&p, (char*)&ca4.sin4.sin_addr.s_addr, 4);
+    std::bitset<32> result(htonl(p));
+
+    memcpy(&p, (char*)&orig.sin4.sin_addr.s_addr, 4);
+    std::bitset<32> manual(htonl(p));
+
+    auto tokill=32-n;
+    for(int i =0; i< tokill; ++i)
+      manual.set(i, 0);
+
+    BOOST_CHECK_EQUAL(result, manual);
+  }
+
+  ca4 = ComboAddress("130.161.252.29");
+  ca4.truncate(31);
+  BOOST_CHECK_EQUAL(ca4.toString(), "130.161.252.28");
+
+  ca4.truncate(30);
+  BOOST_CHECK_EQUAL(ca4.toString(), "130.161.252.28");
+
+  ca4.truncate(29);
+  BOOST_CHECK_EQUAL(ca4.toString(), "130.161.252.24");
+
+  ca4.truncate(23);
+  BOOST_CHECK_EQUAL(ca4.toString(), "130.161.252.0");
+
+  ca4.truncate(22);
+  BOOST_CHECK_EQUAL(ca4.toString(), "130.161.252.0");
+
+  ca4.truncate(21);
+  BOOST_CHECK_EQUAL(ca4.toString(), "130.161.248.0");
+
+  ComboAddress ca6("2001:888:2000:1d::2");
+  ca6.truncate(120);
+  BOOST_CHECK_EQUAL(ca6.toString(), "2001:888:2000:1d::");
+  ca6.truncate(64);
+  BOOST_CHECK_EQUAL(ca6.toString(), "2001:888:2000:1d::");
+  ca6.truncate(72);                  // 0102 304 0506 78
+  BOOST_CHECK_EQUAL(ca6.toString(), "2001:888:2000:1d::");
+  ca6.truncate(56);
+  BOOST_CHECK_EQUAL(ca6.toString(), "2001:888:2000::");
+  ca6.truncate(48);
+  BOOST_CHECK_EQUAL(ca6.toString(), "2001:888:2000::");
+  ca6.truncate(32);
+  BOOST_CHECK_EQUAL(ca6.toString(), "2001:888::");
+  ca6.truncate(16);
+  BOOST_CHECK_EQUAL(ca6.toString(), "2001::");
+  ca6.truncate(8);
+  BOOST_CHECK_EQUAL(ca6.toString(), "2000::");
+
+
+  orig=ca6=ComboAddress("2001:888:2000:1d::2");
+  for(int n=128; n; --n) {
+    ca6.truncate(n);
+
+    std::bitset<128> result, manual;
+    for(int i=0; i < 16; ++i) {
+      result<<=8;
+      result|= std::bitset<128>(*((unsigned char*)&ca6.sin6.sin6_addr.s6_addr + i));
+
+      manual<<=8;
+      manual|= std::bitset<128>(*((unsigned char*)&orig.sin6.sin6_addr.s6_addr + i));
+    }
+
+    auto tokill=128-n;
+    for(int i =0; i< tokill; ++i)
+      manual.set(i, 0);
+
+    BOOST_CHECK_EQUAL(result, manual);
+  }
+}
+
+BOOST_AUTO_TEST_CASE(test_ComboAddressReverse)
+{
+  ComboAddress a{"1.2.3.4"};
+  BOOST_CHECK_EQUAL(a.toStringReversed(), "4.3.2.1");
+
+  ComboAddress b{"192.168.0.1"};
+  BOOST_CHECK_EQUAL(b.toStringReversed(), "1.0.168.192");
+
+  ComboAddress c{"2001:db8::567:89ab"};
+  BOOST_CHECK_EQUAL(c.toStringReversed(), "b.a.9.8.7.6.5.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2");
+
+  ComboAddress d{"::1"};
+  BOOST_CHECK_EQUAL(d.toStringReversed(), "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0");
+
+  ComboAddress e{"ab:cd::10"};
+  BOOST_CHECK_EQUAL(e.toStringReversed(), "0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.d.c.0.0.b.a.0.0");
+
+  ComboAddress f{"4321:0:1:2:3:4:567:89ab"};
+  BOOST_CHECK_EQUAL(f.toStringReversed(), "b.a.9.8.7.6.5.0.4.0.0.0.3.0.0.0.2.0.0.0.1.0.0.0.0.0.0.0.1.2.3.4");
+}
+
+BOOST_AUTO_TEST_CASE(test_Mapping)
+{
+  ComboAddress lh("::1");
+  BOOST_CHECK_EQUAL(lh.toString(), "::1");
+}
+
+BOOST_AUTO_TEST_CASE(test_Netmask) {
+  ComboAddress local("127.0.0.1", 53);
+  ComboAddress remote("130.161.252.29", 53);
+
+  Netmask nm("127.0.0.1/24");
+  BOOST_CHECK(nm.getBits() == 24);
+  BOOST_CHECK(nm.match(local));
+  BOOST_CHECK(!nm.match(remote));
+  BOOST_CHECK(nm.isIPv4());
+  BOOST_CHECK(!nm.isIPv6());
+
+  Netmask nm6("fe80::92fb:a6ff:fe4a:51da/64");
+  BOOST_CHECK(nm6.getBits() == 64);
+  BOOST_CHECK(nm6.match("fe80::92fb:a6ff:fe4a:51db"));
+  BOOST_CHECK(!nm6.match("fe81::92fb:a6ff:fe4a:51db"));
+  BOOST_CHECK(!nm6.isIPv4());
+  BOOST_CHECK(nm6.isIPv6());
+
+  Netmask nmp("130.161.252.29/32");
+  BOOST_CHECK(nmp.match(remote));
+
+  Netmask nmp6("fe80::92fb:a6ff:fe4a:51da/128");
+  BOOST_CHECK(nmp6.match("fe80::92fb:a6ff:fe4a:51da"));
+  BOOST_CHECK(!nmp6.match("fe81::92fb:a6ff:fe4a:51db"));
+
+  Netmask all("0.0.0.0/0");
+  BOOST_CHECK(all.match(local) && all.match(remote));
+
+  Netmask all6("::/0");
+  BOOST_CHECK(all6.match("::1") && all6.match("fe80::92fb:a6ff:fe4a:51da"));
+
+
+  Netmask fromCombo1(ComboAddress("192.0.2.1:53"), 32);
+  Netmask fromCombo2(ComboAddress("192.0.2.1:54"), 32);
+  BOOST_CHECK(fromCombo1 == fromCombo2);
+  BOOST_CHECK(fromCombo1.match("192.0.2.1"));
+  BOOST_CHECK(fromCombo1.match(ComboAddress("192.0.2.1:80")));
+  BOOST_CHECK(fromCombo1.getNetwork() == ComboAddress("192.0.2.1"));
+  BOOST_CHECK(fromCombo1.getMaskedNetwork() == ComboAddress("192.0.2.1"));
+
+  Netmask nm25("192.0.2.255/25");
+  BOOST_CHECK(nm25.getBits() == 25);
+  BOOST_CHECK(nm25.getNetwork() == ComboAddress("192.0.2.128"));
+  BOOST_CHECK(nm25.getMaskedNetwork() == ComboAddress("192.0.2.128"));
+
+  /* Make sure that more specific Netmasks are lesser than less specific ones,
+     as this is very useful when matching. */
+  Netmask specific32("192.0.0.0/32");
+  Netmask specific24("192.0.0.0/24");
+  Netmask specific16("192.0.0.0/16");
+  BOOST_CHECK(specific32 < specific24);
+  BOOST_CHECK(specific24 > specific32);
+  BOOST_CHECK(specific24 < specific16);
+  BOOST_CHECK(specific16 > specific24);
+
+  Netmask sameMask1("192.0.0.0/16");
+  Netmask sameMask2("192.0.0.1/16");
+  BOOST_CHECK(!(sameMask1 < sameMask2));
+  BOOST_CHECK(!(sameMask2 > sameMask1));
+  BOOST_CHECK(sameMask1 == sameMask2);
+
+  Netmask nm1921("192.1.255.255/16");
+  Netmask nm1922("192.2.255.255/16");
+  BOOST_CHECK(!(nm1921 == nm1922));
+  BOOST_CHECK(nm1921 < nm1922);
+  BOOST_CHECK(nm1922 > nm1921);
+
+  /* An empty Netmask should be larger than
+     every others. */
+  Netmask empty = Netmask();
+  Netmask full("255.255.255.255/32");
+  BOOST_CHECK(empty > all);
+  BOOST_CHECK(all < empty);
+  BOOST_CHECK(empty > full);
+  BOOST_CHECK(full < empty);
+}
+
+static std::string NMGOutputToSorted(const std::string& str)
+{
+  std::vector<std::string> vect;
+  stringtok(vect, str, ", ");
+  std::sort(vect.begin(), vect.end());
+  std::string result;
+  for (const auto& entry : vect) {
+    if (!result.empty()) {
+      result += " ";
+    }
+    result += entry;
+  }
+
+  return result;
+}
+
+BOOST_AUTO_TEST_CASE(test_NetmaskGroup) {
+
+  {
+    NetmaskGroup ng;
+    BOOST_CHECK_EQUAL(ng.empty(), true);
+    BOOST_CHECK_EQUAL(ng.size(), 0U);
+    ng.addMask("10.0.1.0");
+    BOOST_CHECK_EQUAL(ng.empty(), false);
+    BOOST_CHECK_EQUAL(ng.size(), 1U);
+    BOOST_CHECK(ng.match(ComboAddress("10.0.1.0")));
+    ng.toMasks("127.0.0.0/8, 10.0.0.0/24");
+    BOOST_CHECK_EQUAL(ng.size(), 3U);
+    BOOST_CHECK(ng.match(ComboAddress("127.0.0.1")));
+    BOOST_CHECK(ng.match(ComboAddress("10.0.0.3")));
+    BOOST_CHECK(ng.match(ComboAddress("10.0.1.0")));
+    BOOST_CHECK(!ng.match(ComboAddress("128.1.2.3")));
+    BOOST_CHECK(!ng.match(ComboAddress("10.0.1.1")));
+    BOOST_CHECK(!ng.match(ComboAddress("::1")));
+    ng.addMask("::1");
+    BOOST_CHECK_EQUAL(ng.size(), 4U);
+    BOOST_CHECK(ng.match(ComboAddress("::1")));
+    BOOST_CHECK(!ng.match(ComboAddress("::2")));
+    ng.addMask("fe80::/16");
+    BOOST_CHECK_EQUAL(ng.size(), 5U);
+    BOOST_CHECK(ng.match(ComboAddress("fe80::1")));
+    BOOST_CHECK(!ng.match(ComboAddress("fe81::1")));
+    BOOST_CHECK_EQUAL(NMGOutputToSorted(ng.toString()), NMGOutputToSorted("10.0.1.0/32, 127.0.0.0/8, 10.0.0.0/24, ::1/128, fe80::/16"));
+
+    /* negative entries using the explicit flag */
+    ng.addMask("172.16.0.0/16", true);
+    BOOST_CHECK_EQUAL(ng.size(), 6U);
+    BOOST_CHECK(ng.match(ComboAddress("172.16.1.1")));
+    BOOST_CHECK(ng.match(ComboAddress("172.16.4.50")));
+    ng.addMask("172.16.4.0/24", false);
+    BOOST_CHECK_EQUAL(ng.size(), 7U);
+    BOOST_CHECK(ng.match(ComboAddress("172.16.1.1")));
+    BOOST_CHECK(!ng.match(ComboAddress("172.16.4.50")));
+    ng.addMask("fe80::/24", false);
+    BOOST_CHECK_EQUAL(ng.size(), 8U);
+    BOOST_CHECK(!ng.match(ComboAddress("fe80::1")));
+    BOOST_CHECK(!ng.match(ComboAddress("fe81::1")));
+    /* not in fe80::/24 but in fe80::/16, should match */
+    BOOST_CHECK(ng.match(ComboAddress("fe80:0100::1")));
+
+    /* negative entries using '!' */
+    BOOST_CHECK(ng.match(ComboAddress("172.16.10.80")));
+    ng.addMask("!172.16.10.0/24");
+    BOOST_CHECK_EQUAL(ng.size(), 9U);
+    BOOST_CHECK(!ng.match(ComboAddress("172.16.10.80")));
+    ng.addMask("2001:db8::/32");
+    BOOST_CHECK_EQUAL(ng.size(), 10U);
+    ng.addMask("!2001:db8::/64");
+    BOOST_CHECK_EQUAL(ng.size(), 11U);
+    BOOST_CHECK(!ng.match(ComboAddress("2001:db8::1")));
+    /* not in 2001:db8::/64 but in 2001:db8::/32, should match */
+    BOOST_CHECK(ng.match(ComboAddress("2001:db8:1::1")));
+
+    BOOST_CHECK_EQUAL(NMGOutputToSorted(ng.toString()), NMGOutputToSorted("10.0.1.0/32, 127.0.0.0/8, 10.0.0.0/24, ::1/128, fe80::/16, 172.16.0.0/16, !172.16.4.0/24, !fe80::/24, !172.16.10.0/24, 2001:db8::/32, !2001:db8::/64"));
+  }
+
+  {
+    /* this time using Netmask objects instead of strings */
+    NetmaskGroup ng;
+    BOOST_CHECK_EQUAL(ng.empty(), true);
+    BOOST_CHECK_EQUAL(ng.size(), 0U);
+    ng.addMask(Netmask("10.0.1.0"));
+    BOOST_CHECK_EQUAL(ng.empty(), false);
+    BOOST_CHECK_EQUAL(ng.size(), 1U);
+    BOOST_CHECK(ng.match(ComboAddress("10.0.1.0")));
+    ng.addMask(Netmask("127.0.0.0/8"));
+    BOOST_CHECK_EQUAL(ng.size(), 2U);
+    ng.addMask(Netmask("10.0.0.0/24"));
+    BOOST_CHECK_EQUAL(ng.size(), 3U);
+    BOOST_CHECK(ng.match(ComboAddress("127.0.0.1")));
+    BOOST_CHECK(ng.match(ComboAddress("10.0.0.3")));
+    BOOST_CHECK(ng.match(ComboAddress("10.0.1.0")));
+    BOOST_CHECK(!ng.match(ComboAddress("128.1.2.3")));
+    BOOST_CHECK(!ng.match(ComboAddress("10.0.1.1")));
+    BOOST_CHECK(!ng.match(ComboAddress("::1")));
+    ng.addMask(Netmask("::1"));
+    BOOST_CHECK_EQUAL(ng.size(), 4U);
+    BOOST_CHECK(ng.match(ComboAddress("::1")));
+    BOOST_CHECK(!ng.match(ComboAddress("::2")));
+    ng.addMask(Netmask("fe80::/16"));
+    BOOST_CHECK_EQUAL(ng.size(), 5U);
+    BOOST_CHECK(ng.match(ComboAddress("fe80::1")));
+    BOOST_CHECK(!ng.match(ComboAddress("fe81::1")));
+    BOOST_CHECK_EQUAL(NMGOutputToSorted(ng.toString()), NMGOutputToSorted("10.0.1.0/32, 127.0.0.0/8, 10.0.0.0/24, ::1/128, fe80::/16"));
+
+    /* negative entries using the explicit flag */
+    ng.addMask(Netmask("172.16.0.0/16"), true);
+    BOOST_CHECK_EQUAL(ng.size(), 6U);
+    BOOST_CHECK(ng.match(ComboAddress("172.16.1.1")));
+    BOOST_CHECK(ng.match(ComboAddress("172.16.4.50")));
+    ng.addMask(Netmask("172.16.4.0/24"), false);
+    BOOST_CHECK_EQUAL(ng.size(), 7U);
+    BOOST_CHECK(ng.match(ComboAddress("172.16.1.1")));
+    BOOST_CHECK(!ng.match(ComboAddress("172.16.4.50")));
+    ng.addMask("fe80::/24", false);
+    BOOST_CHECK_EQUAL(ng.size(), 8U);
+    BOOST_CHECK(!ng.match(ComboAddress("fe80::1")));
+    BOOST_CHECK(!ng.match(ComboAddress("fe81::1")));
+    /* not in fe80::/24 but in fe80::/16, should match */
+    BOOST_CHECK(ng.match(ComboAddress("fe80:0100::1")));
+
+    BOOST_CHECK_EQUAL(NMGOutputToSorted(ng.toString()), NMGOutputToSorted("10.0.1.0/32, 127.0.0.0/8, 10.0.0.0/24, ::1/128, fe80::/16, 172.16.0.0/16, !172.16.4.0/24, !fe80::/24"));
+  }
+}
+
+BOOST_AUTO_TEST_CASE(test_NetmaskTree) {
+  NetmaskTree<int> nmt;
+  BOOST_CHECK_EQUAL(nmt.empty(), true);
+  BOOST_CHECK_EQUAL(nmt.size(), 0U);
+  nmt.insert(Netmask("130.161.252.0/24")).second=0;
+  BOOST_CHECK_EQUAL(nmt.empty(), false);
+  BOOST_CHECK_EQUAL(nmt.size(), 1U);
+  nmt.insert(Netmask("130.161.0.0/16")).second=1;
+  BOOST_CHECK_EQUAL(nmt.size(), 2U);
+  nmt.insert(Netmask("130.0.0.0/8")).second=2;
+  BOOST_CHECK_EQUAL(nmt.size(), 3U);
+
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("213.244.168.210")), (void*)0);
+  auto found=nmt.lookup(ComboAddress("130.161.252.29"));
+  BOOST_CHECK(found);
+  BOOST_CHECK_EQUAL(found->second, 0);
+  found=nmt.lookup(ComboAddress("130.161.180.1"));
+  BOOST_CHECK(found);
+  BOOST_CHECK_EQUAL(found->second, 1);
+
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("130.255.255.255"))->second, 2);
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("130.161.252.255"))->second, 0);
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("130.161.253.255"))->second, 1);
+
+  found=nmt.lookup(ComboAddress("130.145.180.1"));
+  BOOST_CHECK(found);
+  BOOST_CHECK_EQUAL(found->second, 2);
+
+  nmt.insert(Netmask("0.0.0.0/0")).second=3;
+  BOOST_CHECK_EQUAL(nmt.size(), 4U);
+  nmt.insert(Netmask("0.0.0.0/7")).second=4;
+  BOOST_CHECK_EQUAL(nmt.size(), 5U);
+  nmt.insert(Netmask("0.0.0.0/15")).second=5;
+  BOOST_CHECK_EQUAL(nmt.size(), 6U);
+  BOOST_CHECK_EQUAL(nmt.lookup(Netmask("0.0.0.0/0"))->second, 3);
+  BOOST_CHECK_EQUAL(nmt.lookup(Netmask("0.0.0.0/7"))->second, 4);
+  BOOST_CHECK_EQUAL(nmt.lookup(Netmask("0.0.0.0/15"))->second, 5);
+
+  nmt.clear();
+  BOOST_CHECK_EQUAL(nmt.empty(), true);
+  BOOST_CHECK_EQUAL(nmt.size(), 0U);
+  BOOST_CHECK(!nmt.lookup(ComboAddress("130.161.180.1")));
+
+  nmt.insert(Netmask("::1")).second=1;
+  BOOST_CHECK_EQUAL(nmt.empty(), false);
+  BOOST_CHECK_EQUAL(nmt.size(), 1U);
+  nmt.insert(Netmask("::/0")).second=0;
+  BOOST_CHECK_EQUAL(nmt.size(), 2U);
+  nmt.insert(Netmask("fe80::/16")).second=2;
+  BOOST_CHECK_EQUAL(nmt.size(), 3U);
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("130.161.253.255")), (void*)0);
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("::2"))->second, 0);
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("::ffff"))->second, 0);
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("::1"))->second, 1);
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("fe80::1"))->second, 2);
+}
+
+BOOST_AUTO_TEST_CASE(test_single) {
+  NetmaskTree<bool> nmt;
+  BOOST_CHECK_EQUAL(nmt.empty(), true);
+  BOOST_CHECK_EQUAL(nmt.size(), 0U);
+  nmt.insert(Netmask("127.0.0.0/8")).second=1;
+  BOOST_CHECK_EQUAL(nmt.empty(), false);
+  BOOST_CHECK_EQUAL(nmt.size(), 1U);
+  BOOST_CHECK_EQUAL(nmt.lookup(ComboAddress("127.0.0.1"))->second, 1);
+}
+
+BOOST_AUTO_TEST_CASE(test_scale) {
+  string start="192.168.";
+  NetmaskTree<int> works;
+  BOOST_CHECK_EQUAL(works.size(), 0U);
+  for(size_t i=0; i < 256; ++i) {
+    for(size_t j=0; j < 256; ++j) {
+      works.insert(Netmask(start+std::to_string(i)+"."+std::to_string(j))).second=i*j;
+      BOOST_CHECK_EQUAL(works.size(), i*256 + j + 1);
+    }
+  }
+
+  for(int i=0; i < 256; ++i) {
+    for(int j=0; j < 256; ++j) {
+      BOOST_CHECK_EQUAL(works.lookup(ComboAddress(start+std::to_string(i)+"."+std::to_string(j)))->second, i*j);
+    }
+  }
+
+  start="130.161.";
+  for(int i=0; i < 256; ++i) {
+    for(int j=0; j < 256; ++j) {
+      BOOST_CHECK_EQUAL(works.lookup(ComboAddress(start+std::to_string(i)+"."+std::to_string(j))), (void*)0);
+    }
+  }
+
+  start="2000:123:";
+  for(size_t i=0; i < 256; ++i) {
+    for(size_t j=0; j < 256; ++j) {
+      works.insert(Netmask(start+std::to_string(i)+":"+std::to_string(j)+"::/64")).second=i*j;
+      BOOST_CHECK_EQUAL(works.size(), (256*256) + i*256 + j + 1);
+    }
+  }
+
+  for(int i=0; i < 256; ++i) {
+    for(int j=0; j < 256; ++j) {
+      BOOST_CHECK_EQUAL(works.lookup(ComboAddress(start+std::to_string(i)+":"+std::to_string(j)+"::"+std::to_string(i)+":"+std::to_string(j)))->second, i*j);
+    }
+  }
+
+  start="2001:123:";
+  for(int i=0; i < 256; ++i) {
+    for(int j=0; j < 256; ++j) {
+      BOOST_CHECK_EQUAL(works.lookup(ComboAddress(start+std::to_string(i)+":"+std::to_string(j)+"::"+std::to_string(i)+":"+std::to_string(j))), (void*)0);
+    }
+  }
+}
+
+BOOST_AUTO_TEST_CASE(test_removal) {
+  std::string prefix = "192.";
+  NetmaskTree<int> nmt;
+  BOOST_CHECK(nmt.empty());
+  BOOST_CHECK_EQUAL(nmt.size(), 0U);
+
+  size_t count = 0;
+  for(unsigned int i = 0; i < 256; ++i) {
+    for(unsigned int j = 16; j <= 32; ++j) {
+      nmt.insert(Netmask(prefix + std::to_string(i) +".127.255/"+std::to_string(j))).second = j;
+      count++;
+      BOOST_CHECK_EQUAL(nmt.size(), count);
+    }
+  }
+
+  for(unsigned int i = 0; i < 256; ++i) {
+    ComboAddress key(prefix + std::to_string(i) + ".127.255");
+    const auto result = nmt.lookup(key);
+    BOOST_CHECK_EQUAL(result->first.getBits(), 32);
+    BOOST_CHECK_EQUAL(result->first.getMaskedNetwork().toString(), key.toString());
+    BOOST_CHECK_EQUAL(result->second, 32);
+  }
+
+  for(int i = 0; i < 256; ++i) {
+    for(int j = 32; j >= 16; --j) {
+      ComboAddress key(prefix + std::to_string(i) + ".127.255");
+      nmt.erase(Netmask(key, j));
+      count--;
+      BOOST_CHECK_EQUAL(nmt.size(), count);
+      const auto result = nmt.lookup(key);
+
+      if (j > 16) {
+        BOOST_REQUIRE(result != nullptr);
+        BOOST_CHECK_EQUAL(result->first.getBits(), j-1);
+        BOOST_CHECK_EQUAL(result->first.getMaskedNetwork().toString(), Netmask(key, j-1).getMaskedNetwork().toString());
+        BOOST_CHECK_EQUAL(result->second, j - 1);
+      }
+      else {
+        BOOST_CHECK(result == nullptr);
+      }
+    }
+  }
+
+  BOOST_CHECK_EQUAL(nmt.size(), 0U);
+  BOOST_CHECK(nmt.empty());
+}
+
+BOOST_AUTO_TEST_CASE(test_iterator) {
+  NetmaskTree<int> masks_set1;
+  std::set<Netmask> masks_set2;
+
+  // create sets. the std::set entries are normalized to match internal behavior
+  // of NetmaskTree
+  for(int i=0; i < 256; ++i) {
+    std::stringstream ss;
+    Netmask mask;
+
+    ss << i << "." << i << "." << i << "." << i;
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << (255-i) << "." << (i/2) << "." << (i/3) << "." << (i/5);
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << (i/5) << "." << (i/3) << "." << (i/2) << "." << (255-i);
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << (i/2) << "." << (i/4) << "." << (255-i) << ".0/" << (i%24);
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << std::hex << "2001:" << i << i << ":" << i << i << "::/64";
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << std::hex << "2001:" << (i/5) << (i/3) << ":" << (i/2) << (255-i) << "::/64";
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << std::hex << "2001:" << (255-i) << (i/2) << ":" << (i/3) << (i/5) << "::/64";
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << std::hex << "20" << i/2 << ":" << i/3 << i/7 << "::" << i << (i > 0 ? i-1 : i + 1);
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << std::hex << "20" << i << ":" << i << i << "::/" << std::dec << (i%48);
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+  }
+  for(int i=0; i <= 32; ++i) {
+    std::stringstream ss;
+    Netmask mask;
+
+    ss << "85.85.85.85/" << i;
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << "170.170.170.170/" << i;
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+  }
+  for(int i=0; i <= 128; ++i) {
+    std::stringstream ss;
+    Netmask mask;
+
+    ss << "5555:5555:5555:5555:5555:5555:5555:5555/" << i;
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+
+    ss.str("");
+    ss << "aaaa:aaaa:aaaa:aaaa:aaaa:aaaa:aaaa:aaaa/" << i;
+    mask = Netmask(ss.str());
+    masks_set1.insert(mask).second=i;
+    masks_set2.insert(mask.getNormalized());
+  }
+
+
+  // check set equality using iterators
+  BOOST_CHECK_EQUAL(masks_set1.size(), masks_set2.size());
+  BOOST_CHECK_EQUAL((size_t)std::distance(masks_set1.begin(), masks_set1.end()),
+                    (size_t)std::distance(masks_set2.begin(), masks_set2.end()));
+  for (auto entry: masks_set1) {
+    Netmask mask = entry.first.getNormalized();
+
+    BOOST_CHECK(masks_set2.find(mask) != masks_set2.end());
+  }
+  for (const Netmask& mask: masks_set2) {
+    BOOST_CHECK(masks_set1.lookup(mask) != nullptr);
+  }
+
+  // create a copy of the NetmaskTree (check copy by assignment)
+  NetmaskTree<int> masks_set1_cp1 = masks_set1;
+
+  // taint the old version
+  masks_set1.insert("1.2.3.4");
+  masks_set1.erase("1.1.1.1");
+
+  // check set equality using iterators
+  BOOST_CHECK_EQUAL(masks_set1_cp1.size(), masks_set2.size());
+  BOOST_CHECK_EQUAL((size_t)std::distance(masks_set1_cp1.begin(), masks_set1_cp1.end()),
+                    (size_t)std::distance(masks_set2.begin(), masks_set2.end()));
+  for (auto entry: masks_set1_cp1) {
+    Netmask mask = entry.first.getNormalized();
+
+    BOOST_CHECK(masks_set2.find(mask) != masks_set2.end());
+  }
+  for (const Netmask& mask: masks_set2) {
+    BOOST_CHECK(masks_set1_cp1.lookup(mask) != nullptr);
+  }
+
+  // create a copy of the NetmaskTree (check copy constructor)
+  NetmaskTree<int> masks_set1_cp2(masks_set1_cp1);
+
+  // taint the old version
+  masks_set1_cp1.insert("2.3.4.5");
+  masks_set1_cp1.erase("2.2.2.2");
+
+  // check set equality using iterators
+  BOOST_CHECK_EQUAL(masks_set1_cp2.size(), masks_set2.size());
+  BOOST_CHECK_EQUAL((size_t)std::distance(masks_set1_cp2.begin(), masks_set1_cp2.end()),
+                    (size_t)std::distance(masks_set2.begin(), masks_set2.end()));
+  for (auto entry: masks_set1_cp2) {
+    Netmask mask = entry.first.getNormalized();
+
+    BOOST_CHECK(masks_set2.find(mask) != masks_set2.end());
+  }
+  for (const Netmask& mask: masks_set2) {
+    BOOST_CHECK(masks_set1_cp2.lookup(mask) != nullptr);
+  }
+
+  // swap contents of the NetmaskTree
+  NetmaskTree<int> masks_set1_cp3;
+  masks_set1_cp3.swap(masks_set1_cp2);
+
+  // taint the old version
+  masks_set1_cp2.insert("3.4.5.6");
+  masks_set1_cp2.erase("3.3.3.3");
+
+  // check set equality using iterators
+  BOOST_CHECK_EQUAL(masks_set1_cp3.size(), masks_set2.size());
+  BOOST_CHECK_EQUAL((size_t)std::distance(masks_set1_cp3.begin(), masks_set1_cp3.end()),
+                    (size_t)std::distance(masks_set2.begin(), masks_set2.end()));
+  for (auto entry: masks_set1_cp3) {
+    Netmask mask = entry.first.getNormalized();
+
+    BOOST_CHECK(masks_set2.find(mask) != masks_set2.end());
+  }
+  for (const Netmask& mask: masks_set2) {
+    BOOST_CHECK(masks_set1_cp3.lookup(mask) != nullptr);
+  }
+
+  // copy contents to an std::set
+  std::set<NetmaskTree<int>::node_type> masks_set1_cp4(masks_set1_cp3.begin(), masks_set1_cp3.end());
+
+  // check set equality
+  BOOST_CHECK_EQUAL(masks_set1_cp4.size(), masks_set2.size());
+  for (auto entry: masks_set1_cp4) {
+    Netmask mask = entry.first.getNormalized();
+
+    BOOST_CHECK(masks_set2.find(mask) != masks_set2.end());
+  }
+  for (const Netmask& mask: masks_set2) {
+    Netmask maskl = mask.getNormalized();
+    bool found = false;
+    for (auto entry: masks_set1_cp4) {
+      Netmask maskr = entry.first.getNormalized();
+
+      if (maskl == maskr)
+        found = true;
+    }
+    BOOST_CHECK(found);
+  }
+
+  // create a copy of the NetmaskTree
+  NetmaskTree<int> masks_set1_cp5(masks_set1_cp3);
+
+  // erase select values
+  {
+    Netmask mask;
+
+    mask = Netmask("16.16.16.16");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("223.16.10.6");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("12.21.32.191");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("64.32.127.0/8");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("2001:ffff:ffff::/64");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("2001:192a:407f::/64");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("2001:bf20:15c::/64");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("2010:a4::201f");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("2010:1010::/16");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("85.85.85.85");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("170.170.170.170");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("5555:5555:5555:5555:5555:5555:5555:5555");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+
+    mask = Netmask("aaaa:aaaa:aaaa:aaaa:aaaa:aaaa:aaaa:aaaa");
+    masks_set1_cp5.erase(mask);
+    masks_set2.erase(mask.getNormalized());
+  }
+
+  // check set equality using iterators
+  BOOST_CHECK_EQUAL(masks_set1_cp5.size(), masks_set2.size());
+  BOOST_CHECK_EQUAL((size_t)std::distance(masks_set1_cp5.begin(), masks_set1_cp5.end()),
+                    (size_t)std::distance(masks_set2.begin(), masks_set2.end()));
+  for (auto entry: masks_set1_cp5) {
+    Netmask mask = entry.first.getNormalized();
+
+    BOOST_CHECK(masks_set2.find(mask) != masks_set2.end());
+  }
+  for (const Netmask& mask: masks_set2) {
+    BOOST_CHECK(masks_set1_cp5.lookup(mask) != nullptr);
+  }
+}
+
+BOOST_AUTO_TEST_CASE(test_ComboAddress_caContainerToString) {
+  ComboAddress ca1("192.0.2.1:53");
+  ComboAddress ca2("192.0.2.2:5300");
+  ComboAddress ca3("[2001:db8:53::3]:53");
+  ComboAddress ca4("[2001:db8:53::4]:5300");
+
+  set<ComboAddress> caSet({ca1, ca2, ca3, ca4});
+  vector<ComboAddress> caVector({ca1, ca2, ca3, ca4});
+
+  string caSetStr = ComboAddress::caContainerToString(caSet, false);
+  string caVectorStr = ComboAddress::caContainerToString(caVector, false);
+  BOOST_CHECK_EQUAL(caSetStr, "192.0.2.1,192.0.2.2,2001:db8:53::3,2001:db8:53::4");
+  BOOST_CHECK_EQUAL(caVectorStr, "192.0.2.1,192.0.2.2,2001:db8:53::3,2001:db8:53::4");
+
+  caSetStr = ComboAddress::caContainerToString(caSet, true);
+  caVectorStr = ComboAddress::caContainerToString(caVector, true);
+  BOOST_CHECK_EQUAL(caSetStr, "192.0.2.1,192.0.2.2:5300,2001:db8:53::3,[2001:db8:53::4]:5300");
+  BOOST_CHECK_EQUAL(caVectorStr, "192.0.2.1,192.0.2.2:5300,2001:db8:53::3,[2001:db8:53::4]:5300");
+
+  caSetStr = ComboAddress::caContainerToString(caSet, true, 0);
+  caVectorStr = ComboAddress::caContainerToString(caVector, true, 0);
+  BOOST_CHECK_EQUAL(caSetStr, "192.0.2.1:53,192.0.2.2:5300,[2001:db8:53::3]:53,[2001:db8:53::4]:5300");
+  BOOST_CHECK_EQUAL(caVectorStr, "192.0.2.1:53,192.0.2.2:5300,[2001:db8:53::3]:53,[2001:db8:53::4]:5300");
+}
+
+BOOST_AUTO_TEST_CASE(test_parseIPAndPort)
+{
+  struct {
+    std::string str;
+    uint16_t port;
+    std::string result;
+    bool ex;
+  } tests[] = {
+    { "", 0, "", true },
+    { "1.2.3.a", 53, "", true },
+    { "1::g3", 99, "", true },
+    { "1.2.3.4", 0, "1.2.3.4:0", false },
+    { "1.2.3.4", 999, "1.2.3.4:999", false },
+    { "1::", 999, "[1::]:999", false },
+    { "1::33:99", 0, "[1::33:99]", false },
+    { "[1::33]:99", 0, "[1::33]:99", false },
+    { "1:33::99", 0, "1:33::99", false },
+    { "[1:33::]:99", 0, "[1:33::]:99", false },
+    { "2003:1234::f561", 53, "[2003:1234::f561]:53", false },
+    { "2003:1234::f561:53", 54, "[2003:1234::f561:53]:54", false },
+  };
+
+  for (const auto& t : tests) {
+    if (t.ex) {
+      BOOST_CHECK_THROW(parseIPAndPort(t.str, t.port), PDNSException);
+    } else {
+      ComboAddress a = parseIPAndPort(t.str, t.port);
+      BOOST_CHECK_EQUAL(a.toStringWithPort(), ComboAddress(t.result).toStringWithPort());
+    }
+  }
+}
+
+BOOST_AUTO_TEST_SUITE_END()