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-rw-r--r--test-dnsdistsvc_cc.cc96
1 files changed, 96 insertions, 0 deletions
diff --git a/test-dnsdistsvc_cc.cc b/test-dnsdistsvc_cc.cc
new file mode 100644
index 0000000..c15d07a
--- /dev/null
+++ b/test-dnsdistsvc_cc.cc
@@ -0,0 +1,96 @@
+
+#define BOOST_TEST_DYN_LINK
+#define BOOST_TEST_NO_MAIN
+
+#include <boost/test/unit_test.hpp>
+
+#include "dnsdist-svc.hh"
+#include "svc-records.hh"
+#include "dnsparser.hh"
+
+BOOST_AUTO_TEST_SUITE(dnsdistsvc_cc)
+
+BOOST_AUTO_TEST_CASE(test_Basic)
+{
+ DNSName target("powerdns.com.");
+
+ {
+ std::vector<uint8_t> payload;
+ const uint16_t priority = 1;
+ BOOST_CHECK(generateSVCPayload(payload, priority, target, {SvcParam::SvcParamKey::port}, {"dot"}, false, 853, std::string(), {ComboAddress("192.0.2.1")}, {ComboAddress("2001:db8::1")}, {}));
+ /* 2 octet field for SvcPriority as an integer in network byte order */
+ /* uncompressed, fully-qualified TargetName */
+ /* list of SvcParams as:
+ - 2 octet field containing the SvcParamKey as an integer in network byte order
+ - 2 octet field containing the length of the SvcParamValue as an integer between 0 and 65535 in network byte order (but constrained by the RDATA and DNS message sizes)
+ - an octet string of this length whose contents are in a format determined by the SvcParamKey
+ SvcParamKeys SHALL appear in increasing numeric order
+ */
+ size_t expectedSize = (/* priority */ 2) + target.wirelength() + (/* mandatory */ 2 + 2 + 2) + (/* alpns with 1-byte length field for each value */ 2 + 2 + 4) + (/* no-alpn-default is false */ 0) + (/* port */ 2 + 2 + 2) + (/* ech */ 0) + (/* v4 hints */ 2 + 2 + 9) + (/* v6 hints */ 2 + 2 + 11);
+ BOOST_CHECK_EQUAL(payload.size(), expectedSize);
+
+ std::set<SvcParam> params;
+ PacketReader pr(std::string_view(reinterpret_cast<const char*>(payload.data()), payload.size()), 0);
+ BOOST_CHECK_EQUAL(pr.get16BitInt(), priority);
+
+ /* we can't use getName() directly because it assumes that there has to be a dnsheader before the name */
+ DNSName parsedTarget(reinterpret_cast<const char*>(payload.data()), payload.size(), pr.getPosition(), false /* uncompress */, nullptr /* qtype */, nullptr /* qclass */, nullptr /* consumed */, 0);
+ pr.skip(parsedTarget.wirelength());
+ BOOST_CHECK_EQUAL(target.toString(), parsedTarget.toString());
+
+ pr.xfrSvcParamKeyVals(params);
+ BOOST_REQUIRE_EQUAL(params.size(), 5U);
+ auto param = params.begin();
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::mandatory);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::alpn);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::port);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::ipv4hint);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::ipv6hint);
+ }
+
+ {
+ std::vector<uint8_t> payload;
+ const uint16_t priority = 2;
+ const std::string ech("whatever");
+ const std::string dohParam("/dns-query{?dns}");
+
+ BOOST_CHECK(generateSVCPayload(payload, priority, target, {SvcParam::SvcParamKey::port}, {"h2"}, true, 443, ech, {ComboAddress("192.0.2.2")}, {ComboAddress("2001:db8::2")}, {std::pair<uint16_t, std::string>(42, dohParam)}));
+
+ size_t expectedSize = (/* priority */ 2) + target.wirelength() + (/* mandatory */ 2 + 2 + 2) + (/* alpns */ 2 + 2 + 3) + (/* no-alpn-default is true */ 2 + 2) + (/* port */ 2 + 2 + 2) + (/* ech */ 2 + 2 + ech.size()) + (/* v4 hints */ 2 + 2 + 9) + (/* v6 hints */ 2 + 2 + 11) + (/* doh parameter */ 2 + 2 + dohParam.size());
+ BOOST_CHECK_EQUAL(payload.size(), expectedSize);
+
+ std::set<SvcParam> params;
+ PacketReader pr(std::string_view(reinterpret_cast<const char*>(payload.data()), payload.size()), 0);
+ BOOST_CHECK_EQUAL(pr.get16BitInt(), priority);
+
+ /* we can't use getName() directly because it assumes that there has to be a dnsheader before the name */
+ DNSName parsedTarget(reinterpret_cast<const char*>(payload.data()), payload.size(), pr.getPosition(), false /* uncompress */, nullptr /* qtype */, nullptr /* qclass */, nullptr /* consumed */, 0);
+ pr.skip(parsedTarget.wirelength());
+ BOOST_CHECK_EQUAL(target.toString(), parsedTarget.toString());
+
+ pr.xfrSvcParamKeyVals(params);
+ BOOST_REQUIRE_EQUAL(params.size(), 8U);
+ auto param = params.begin();
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::mandatory);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::alpn);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::no_default_alpn);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::port);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::ipv4hint);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::ech);
+ ++param;
+ BOOST_CHECK(param->getKey() == SvcParam::SvcParamKey::ipv6hint);
+ ++param;
+ BOOST_CHECK_EQUAL(static_cast<uint16_t>(param->getKey()), 42U);
+ }
+}
+
+BOOST_AUTO_TEST_SUITE_END()