[thirdparty/pdns.git] / pdns / test-recpacketcache_cc.cc

#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 "recpacketcache.hh"
#include "dnswriter.hh"
#include "dnsrecords.hh"
#include "dns_random.hh"
#include "iputils.hh"
#include <utility>


BOOST_AUTO_TEST_SUITE(recpacketcache_cc)

BOOST_AUTO_TEST_CASE(test_recPacketCacheSimple) {
  RecursorPacketCache rpc;
  string fpacket;
  unsigned int tag=0;
  uint32_t age=0;
  uint32_t qhash=0;
  uint32_t ttd=3600;
  BOOST_CHECK_EQUAL(rpc.size(), 0);

  DNSName qname("www.powerdns.com");
  vector<uint8_t> packet;
  DNSPacketWriter pw(packet, qname, QType::A);
  pw.getHeader()->rd=true;
  pw.getHeader()->qr=false;
  pw.getHeader()->id=random();
  string qpacket((const char*)&packet[0], packet.size());
  pw.startRecord(qname, QType::A, ttd);

  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag, qpacket, time(nullptr), &fpacket, &age, &qhash), false);
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &qhash), false);

  ARecordContent ar("127.0.0.1");
  ar.toPacket(pw);
  pw.commit();
  string rpacket((const char*)&packet[0], packet.size());

  rpc.insertResponsePacket(tag, qhash, qpacket, qname, QType::A, QClass::IN, rpacket, time(0), ttd, 0, 0);
  BOOST_CHECK_EQUAL(rpc.size(), 1);
  rpc.doPruneTo(0);
  BOOST_CHECK_EQUAL(rpc.size(), 0);
  rpc.insertResponsePacket(tag, qhash, qpacket, qname, QType::A, QClass::IN, rpacket, time(0), ttd, 0, 0);
  BOOST_CHECK_EQUAL(rpc.size(), 1);
  rpc.doWipePacketCache(qname);
  BOOST_CHECK_EQUAL(rpc.size(), 0);

  rpc.insertResponsePacket(tag, qhash, qpacket, qname, QType::A, QClass::IN, rpacket, time(0), ttd, 0, 0);
  BOOST_CHECK_EQUAL(rpc.size(), 1);
  uint32_t qhash2 = 0;
  bool found = rpc.getResponsePacket(tag, qpacket, time(nullptr), &fpacket, &age, &qhash2);
  BOOST_CHECK_EQUAL(found, true);
  BOOST_CHECK_EQUAL(qhash, qhash2);
  BOOST_CHECK_EQUAL(fpacket, rpacket);
  found = rpc.getResponsePacket(tag, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &qhash2);
  BOOST_CHECK_EQUAL(found, true);
  BOOST_CHECK_EQUAL(qhash, qhash2);
  BOOST_CHECK_EQUAL(fpacket, rpacket);

  packet.clear();
  qname+=DNSName("co.uk");
  DNSPacketWriter pw2(packet, qname, QType::A);

  pw2.getHeader()->rd=true;
  pw2.getHeader()->qr=false;
  pw2.getHeader()->id=random();
  qpacket.assign((const char*)&packet[0], packet.size());

  found = rpc.getResponsePacket(tag, qpacket, time(nullptr), &fpacket, &age, &qhash);
  BOOST_CHECK_EQUAL(found, false);
  found = rpc.getResponsePacket(tag, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &qhash);
  BOOST_CHECK_EQUAL(found, false);

  rpc.doWipePacketCache(DNSName("com"), 0xffff, true);
  BOOST_CHECK_EQUAL(rpc.size(), 0);
}

BOOST_AUTO_TEST_CASE(test_recPacketCache_Tags) {
  /* Insert a response with tag1, the exact same query with a different tag
     should lead to a miss. Inserting a different response with the second tag
     should not override the first one, and we should get a hit for the
     query with either tags, with the response matching the tag.
  */
  RecursorPacketCache rpc;
  string fpacket;
  const unsigned int tag1=0;
  const unsigned int tag2=42;
  uint32_t age=0;
  uint32_t qhash=0;
  uint32_t temphash=0;
  uint32_t ttd=3600;
  BOOST_CHECK_EQUAL(rpc.size(), 0);

  DNSName qname("www.powerdns.com");
  vector<uint8_t> packet;
  DNSPacketWriter pw(packet, qname, QType::A);
  pw.getHeader()->rd=true;
  pw.getHeader()->qr=false;
  pw.getHeader()->id=random();
  string qpacket(reinterpret_cast<const char*>(&packet[0]), packet.size());
  pw.startRecord(qname, QType::A, ttd);

  /* Both interfaces (with and without the qname/qtype/qclass) should get the same hash */
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, time(nullptr), &fpacket, &age, &qhash), false);
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), false);
  BOOST_CHECK_EQUAL(qhash, temphash);

  /* Different tag, should still get get the same hash, for both interfaces */
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, time(nullptr), &fpacket, &age, &temphash), false);
  BOOST_CHECK_EQUAL(qhash, temphash);
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), false);
  BOOST_CHECK_EQUAL(qhash, temphash);

  {
    ARecordContent ar("127.0.0.1");
    ar.toPacket(pw);
    pw.commit();
  }
  string r1packet(reinterpret_cast<const char*>(&packet[0]), packet.size());

  {
    ARecordContent ar("127.0.0.2");
    ar.toPacket(pw);
    pw.commit();
  }
  string r2packet(reinterpret_cast<const char*>(&packet[0]), packet.size());

  BOOST_CHECK(r1packet != r2packet);

  /* inserting a response for tag1 */
  rpc.insertResponsePacket(tag1, qhash, qpacket, qname, QType::A, QClass::IN, r1packet, time(0), ttd, 0, 0);
  BOOST_CHECK_EQUAL(rpc.size(), 1);

  /* inserting a different response for tag2, should not override the first one */
  rpc.insertResponsePacket(tag2, qhash, qpacket, qname, QType::A, QClass::IN, r2packet, time(0), ttd, 0, 0);
  BOOST_CHECK_EQUAL(rpc.size(), 2);

  /* remove all responses from the cache */
  rpc.doPruneTo(0);
  BOOST_CHECK_EQUAL(rpc.size(), 0);

  /* reinsert both */
  rpc.insertResponsePacket(tag1, qhash, qpacket, qname, QType::A, QClass::IN, r1packet, time(0), ttd, 0, 0);
  BOOST_CHECK_EQUAL(rpc.size(), 1);

  rpc.insertResponsePacket(tag2, qhash, qpacket, qname, QType::A, QClass::IN, r2packet, time(0), ttd, 0, 0);
  BOOST_CHECK_EQUAL(rpc.size(), 2);

  /* remove the responses by qname, should remove both */
  rpc.doWipePacketCache(qname);
  BOOST_CHECK_EQUAL(rpc.size(), 0);

  /* insert the response for tag1 */
  rpc.insertResponsePacket(tag1, qhash, qpacket, qname, QType::A, QClass::IN, r1packet, time(0), ttd, 0, 0);
  BOOST_CHECK_EQUAL(rpc.size(), 1);

  /* we can retrieve it */
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), true);
  BOOST_CHECK_EQUAL(qhash, temphash);
  BOOST_CHECK_EQUAL(fpacket, r1packet);

  /* with both interfaces */
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, time(nullptr), &fpacket, &age, &temphash), true);
  BOOST_CHECK_EQUAL(qhash, temphash);
  BOOST_CHECK_EQUAL(fpacket, r1packet);

  /* but not with the second tag */
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), false);
  /* we should still get the same hash */
  BOOST_CHECK_EQUAL(temphash, qhash);

  /* adding a response for the second tag */
  rpc.insertResponsePacket(tag2, qhash, qpacket, qname, QType::A, QClass::IN, r2packet, time(0), ttd, 0, 0);
  BOOST_CHECK_EQUAL(rpc.size(), 2);

  /* We still get the correct response for the first tag */
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, time(nullptr), &fpacket, &age, &temphash), true);
  BOOST_CHECK_EQUAL(qhash, temphash);
  BOOST_CHECK_EQUAL(fpacket, r1packet);

  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), true);
  BOOST_CHECK_EQUAL(qhash, temphash);
  BOOST_CHECK_EQUAL(fpacket, r1packet);

  /* and the correct response for the second tag */
  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, time(nullptr), &fpacket, &age, &temphash), true);
  BOOST_CHECK_EQUAL(qhash, temphash);
  BOOST_CHECK_EQUAL(fpacket, r2packet);

  BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), true);
  BOOST_CHECK_EQUAL(qhash, temphash);
  BOOST_CHECK_EQUAL(fpacket, r2packet);
}

BOOST_AUTO_TEST_SUITE_END()
Commit	Line	Data
49a3500d	1	#define BOOST_TEST_DYN_LINK
	2	#define BOOST_TEST_NO_MAIN
	3
	4	#ifdef HAVE_CONFIG_H
	5	#include "config.h"
	6	#endif
	7	#include <boost/test/unit_test.hpp>
eb5dfa69	8	#include "recpacketcache.hh"
49a3500d	9	#include "dnswriter.hh"
	10	#include "dnsrecords.hh"
	11	#include "dns_random.hh"
	12	#include "iputils.hh"
49a3500d	13	#include <utility>
	14
	15
	16	BOOST_AUTO_TEST_SUITE(recpacketcache_cc)
	17
	18	BOOST_AUTO_TEST_CASE(test_recPacketCacheSimple) {
	19	RecursorPacketCache rpc;
e9f63d47	20	string fpacket;
181270f6	21	unsigned int tag=0;
e9f63d47 RG	22	uint32_t age=0;
	23	uint32_t qhash=0;
	24	uint32_t ttd=3600;
49a3500d	25	BOOST_CHECK_EQUAL(rpc.size(), 0);
	26
	27	DNSName qname("www.powerdns.com");
	28	vector<uint8_t> packet;
	29	DNSPacketWriter pw(packet, qname, QType::A);
	30	pw.getHeader()->rd=true;
	31	pw.getHeader()->qr=false;
	32	pw.getHeader()->id=random();
	33	string qpacket((const char*)&packet[0], packet.size());
e9f63d47 RG	34	pw.startRecord(qname, QType::A, ttd);
	35
	36	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag, qpacket, time(nullptr), &fpacket, &age, &qhash), false);
c15ff3df	37	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &qhash), false);
49a3500d	38
	39	ARecordContent ar("127.0.0.1");
	40	ar.toPacket(pw);
	41	pw.commit();
	42	string rpacket((const char*)&packet[0], packet.size());
	43
25f4137d	44	rpc.insertResponsePacket(tag, qhash, qpacket, qname, QType::A, QClass::IN, rpacket, time(0), ttd, 0, 0);
49a3500d	45	BOOST_CHECK_EQUAL(rpc.size(), 1);
	46	rpc.doPruneTo(0);
	47	BOOST_CHECK_EQUAL(rpc.size(), 0);
25f4137d	48	rpc.insertResponsePacket(tag, qhash, qpacket, qname, QType::A, QClass::IN, rpacket, time(0), ttd, 0, 0);
49a3500d	49	BOOST_CHECK_EQUAL(rpc.size(), 1);
	50	rpc.doWipePacketCache(qname);
	51	BOOST_CHECK_EQUAL(rpc.size(), 0);
	52
25f4137d RG	53	rpc.insertResponsePacket(tag, qhash, qpacket, qname, QType::A, QClass::IN, rpacket, time(0), ttd, 0, 0);
25f4137d RG	54	BOOST_CHECK_EQUAL(rpc.size(), 1);
e9f63d47 RG	55	uint32_t qhash2 = 0;
	56	bool found = rpc.getResponsePacket(tag, qpacket, time(nullptr), &fpacket, &age, &qhash2);
	57	BOOST_CHECK_EQUAL(found, true);
	58	BOOST_CHECK_EQUAL(qhash, qhash2);
49a3500d	59	BOOST_CHECK_EQUAL(fpacket, rpacket);
c15ff3df RG	60	found = rpc.getResponsePacket(tag, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &qhash2);
	61	BOOST_CHECK_EQUAL(found, true);
	62	BOOST_CHECK_EQUAL(qhash, qhash2);
	63	BOOST_CHECK_EQUAL(fpacket, rpacket);
49a3500d	64
	65	packet.clear();
	66	qname+=DNSName("co.uk");
	67	DNSPacketWriter pw2(packet, qname, QType::A);
	68
	69	pw2.getHeader()->rd=true;
	70	pw2.getHeader()->qr=false;
	71	pw2.getHeader()->id=random();
	72	qpacket.assign((const char*)&packet[0], packet.size());
e9f63d47 RG	73
	74	found = rpc.getResponsePacket(tag, qpacket, time(nullptr), &fpacket, &age, &qhash);
	75	BOOST_CHECK_EQUAL(found, false);
c15ff3df RG	76	found = rpc.getResponsePacket(tag, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &qhash);
c15ff3df RG	77	BOOST_CHECK_EQUAL(found, false);
49a3500d	78
	79	rpc.doWipePacketCache(DNSName("com"), 0xffff, true);
	80	BOOST_CHECK_EQUAL(rpc.size(), 0);
181270f6 RG	81	}
	82
	83	BOOST_AUTO_TEST_CASE(test_recPacketCache_Tags) {
	84	/* Insert a response with tag1, the exact same query with a different tag
	85	should lead to a miss. Inserting a different response with the second tag
	86	should not override the first one, and we should get a hit for the
	87	query with either tags, with the response matching the tag.
	88	*/
	89	RecursorPacketCache rpc;
	90	string fpacket;
	91	const unsigned int tag1=0;
	92	const unsigned int tag2=42;
	93	uint32_t age=0;
	94	uint32_t qhash=0;
	95	uint32_t temphash=0;
	96	uint32_t ttd=3600;
	97	BOOST_CHECK_EQUAL(rpc.size(), 0);
	98
	99	DNSName qname("www.powerdns.com");
	100	vector<uint8_t> packet;
	101	DNSPacketWriter pw(packet, qname, QType::A);
	102	pw.getHeader()->rd=true;
	103	pw.getHeader()->qr=false;
	104	pw.getHeader()->id=random();
	105	string qpacket(reinterpret_cast<const char*>(&packet[0]), packet.size());
	106	pw.startRecord(qname, QType::A, ttd);
	107
	108	/* Both interfaces (with and without the qname/qtype/qclass) should get the same hash */
	109	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, time(nullptr), &fpacket, &age, &qhash), false);
	110	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), false);
	111	BOOST_CHECK_EQUAL(qhash, temphash);
	112
	113	/* Different tag, should still get get the same hash, for both interfaces */
	114	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, time(nullptr), &fpacket, &age, &temphash), false);
	115	BOOST_CHECK_EQUAL(qhash, temphash);
	116	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), false);
	117	BOOST_CHECK_EQUAL(qhash, temphash);
	118
	119	{
	120	ARecordContent ar("127.0.0.1");
	121	ar.toPacket(pw);
	122	pw.commit();
	123	}
	124	string r1packet(reinterpret_cast<const char*>(&packet[0]), packet.size());
	125
	126	{
	127	ARecordContent ar("127.0.0.2");
	128	ar.toPacket(pw);
	129	pw.commit();
	130	}
	131	string r2packet(reinterpret_cast<const char*>(&packet[0]), packet.size());
	132
	133	BOOST_CHECK(r1packet != r2packet);
	134
	135	/* inserting a response for tag1 */
25f4137d	136	rpc.insertResponsePacket(tag1, qhash, qpacket, qname, QType::A, QClass::IN, r1packet, time(0), ttd, 0, 0);
181270f6 RG	137	BOOST_CHECK_EQUAL(rpc.size(), 1);
	138
	139	/* inserting a different response for tag2, should not override the first one */
25f4137d	140	rpc.insertResponsePacket(tag2, qhash, qpacket, qname, QType::A, QClass::IN, r2packet, time(0), ttd, 0, 0);
181270f6 RG	141	BOOST_CHECK_EQUAL(rpc.size(), 2);
	142
	143	/* remove all responses from the cache */
	144	rpc.doPruneTo(0);
	145	BOOST_CHECK_EQUAL(rpc.size(), 0);
	146
	147	/* reinsert both */
25f4137d	148	rpc.insertResponsePacket(tag1, qhash, qpacket, qname, QType::A, QClass::IN, r1packet, time(0), ttd, 0, 0);
181270f6 RG	149	BOOST_CHECK_EQUAL(rpc.size(), 1);
181270f6 RG	150
25f4137d	151	rpc.insertResponsePacket(tag2, qhash, qpacket, qname, QType::A, QClass::IN, r2packet, time(0), ttd, 0, 0);
181270f6 RG	152	BOOST_CHECK_EQUAL(rpc.size(), 2);
	153
	154	/* remove the responses by qname, should remove both */
	155	rpc.doWipePacketCache(qname);
	156	BOOST_CHECK_EQUAL(rpc.size(), 0);
	157
	158	/* insert the response for tag1 */
25f4137d	159	rpc.insertResponsePacket(tag1, qhash, qpacket, qname, QType::A, QClass::IN, r1packet, time(0), ttd, 0, 0);
181270f6 RG	160	BOOST_CHECK_EQUAL(rpc.size(), 1);
	161
	162	/* we can retrieve it */
	163	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), true);
	164	BOOST_CHECK_EQUAL(qhash, temphash);
	165	BOOST_CHECK_EQUAL(fpacket, r1packet);
	166
	167	/* with both interfaces */
	168	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, time(nullptr), &fpacket, &age, &temphash), true);
	169	BOOST_CHECK_EQUAL(qhash, temphash);
	170	BOOST_CHECK_EQUAL(fpacket, r1packet);
	171
	172	/* but not with the second tag */
	173	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), false);
	174	/* we should still get the same hash */
	175	BOOST_CHECK_EQUAL(temphash, qhash);
	176
	177	/* adding a response for the second tag */
25f4137d	178	rpc.insertResponsePacket(tag2, qhash, qpacket, qname, QType::A, QClass::IN, r2packet, time(0), ttd, 0, 0);
181270f6 RG	179	BOOST_CHECK_EQUAL(rpc.size(), 2);
	180
	181	/* We still get the correct response for the first tag */
	182	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, time(nullptr), &fpacket, &age, &temphash), true);
	183	BOOST_CHECK_EQUAL(qhash, temphash);
	184	BOOST_CHECK_EQUAL(fpacket, r1packet);
	185
	186	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag1, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), true);
	187	BOOST_CHECK_EQUAL(qhash, temphash);
	188	BOOST_CHECK_EQUAL(fpacket, r1packet);
	189
	190	/* and the correct response for the second tag */
	191	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, time(nullptr), &fpacket, &age, &temphash), true);
	192	BOOST_CHECK_EQUAL(qhash, temphash);
	193	BOOST_CHECK_EQUAL(fpacket, r2packet);
	194
	195	BOOST_CHECK_EQUAL(rpc.getResponsePacket(tag2, qpacket, qname, QType::A, QClass::IN, time(nullptr), &fpacket, &age, &temphash), true);
	196	BOOST_CHECK_EQUAL(qhash, temphash);
	197	BOOST_CHECK_EQUAL(fpacket, r2packet);
	198	}
49a3500d	199
49a3500d	200	BOOST_AUTO_TEST_SUITE_END()