senf/Packets/DefaultBundle/IPv6Extensions.test.cc

   1 // $Id$
   2 //
   3 // Copyright (C) 2007
   4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
   5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
   6 //     Stefan Bund <g0dil@berlios.de>
   7 //     Philipp Batroff <philipp.batroff@fokus.fraunhofer.de>
   8 //
   9 // This program is free software; you can redistribute it and/or modify
  10 // it under the terms of the GNU General Public License as published by
  11 // the Free Software Foundation; either version 2 of the License, or
  12 // (at your option) any later version.
  13 //
  14 // This program is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18 //
  19 // You should have received a copy of the GNU General Public License
  20 // along with this program; if not, write to the
  21 // Free Software Foundation, Inc.,
  22 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23
  24 /** \file
  25     \brief IPv6Extensions unit tests */
  26
  27 //#include "IPv6Extensions.test.hh"
  28 //#include "IPv6Extensions.test.ih"
  29
  30 // Custom includes
  31 #include "IPv6Extensions.hh"
  32 #include "IPv6Packet.hh"
  33 #include "UDPPacket.hh"
  34 #include "ICMPv6Packet.hh"
  35 #include "ICMPv6TypePacket.hh"
  36 #include "EthernetPacket.hh"
  37
  38 #include <senf/Utils/auto_unit_test.hh>
  39 #include <boost/test/test_tools.hpp>
  40
  41 #define prefix_
  42 ///////////////////////////////cc.p////////////////////////////////////////
  43
  44 BOOST_AUTO_UNIT_TEST(ipv6Extensions_fragment)
  45 {
  46     // Just for the fun of it, we test a nice chain: A fragment of a fragmented UDP packet
  47     unsigned char Fragment_packetData[] = {
  48         // IP header
  49         0x60, 0x00, 0x00, 0x00,         // IP Version, class, flow label
  50         0, 20,                          // payload length
  51         44,                             // next header (IPv6 Fragment)
  52         32,                             // hop limit
  53         0x20, 0x01, 0, 0, 0, 0, 0, 0,   // source ip = 2001::1
  54            0, 0, 0, 0, 0, 0, 0, 0x01,
  55         0x20, 0x01, 0, 0, 0, 0, 0, 0,   // destination ip = 2001::2
  56            0, 0, 0, 0, 0, 0, 0, 0x02,
  57         // IPv6 Fragment header
  58         17,                             // next header (UDP)
  59         0,                              // reserved
  60         0x05, 0x00,                     // fragment offset, last fragment
  61         0x01, 0x02, 0x03, 0x04,         // id
  62         // UDP header
  63         0x10, 0x00,                     // source port
  64         0x20, 0x00,                     // destination port
  65         0, 12,                          // length
  66         0x00, 0x00,                     // CRC (no, I won't calculate this one ...)
  67         // Payload data
  68         0x11, 0x12, 0x13, 0x14
  69     };
  70
  71     senf::IPv6Packet pFragment_packet (senf::IPv6Packet::create(Fragment_packetData));
  72
  73     BOOST_CHECK_EQUAL( pFragment_packet->version(), 6u );
  74     BOOST_CHECK_EQUAL( pFragment_packet->length(), 20u );
  75     BOOST_CHECK_EQUAL( pFragment_packet->nextHeader(), 44u );
  76     BOOST_CHECK_EQUAL( pFragment_packet->source().value(),
  77             senf::INet6Address::from_string("2001::1") );
  78     BOOST_CHECK_EQUAL( pFragment_packet->destination().value(),
  79             senf::INet6Address::from_string("2001::2") );
  80
  81     std::ostringstream oss (std::ostringstream::out);
  82     SENF_CHECK_NO_THROW( pFragment_packet.dump( oss));
  83
  84     BOOST_CHECK( pFragment_packet.next().is<senf::IPv6FragmentPacket>() );
  85
  86     senf::IPv6FragmentPacket fFragment_packet (pFragment_packet.next().as<senf::IPv6FragmentPacket>());
  87
  88     BOOST_CHECK_EQUAL( fFragment_packet->nextHeader(), 17u );
  89     BOOST_CHECK_EQUAL( fFragment_packet->fragmentOffset(), 160u );
  90     BOOST_CHECK_EQUAL( fFragment_packet->id(), 0x01020304u );
  91     BOOST_CHECK( fFragment_packet.next().is<senf::UDPPacket>() );
  92
  93     senf::UDPPacket uFragment_packet (fFragment_packet.next().as<senf::UDPPacket>());
  94
  95     BOOST_CHECK_EQUAL( uFragment_packet->source(), 0x1000u );
  96     BOOST_CHECK_EQUAL( uFragment_packet->destination(), 0x2000u );
  97     BOOST_CHECK_EQUAL( uFragment_packet->length(), 12u );
  98     BOOST_CHECK( uFragment_packet.next().is<senf::DataPacket>() );
  99
 100     senf::DataPacket dFragment_packet (uFragment_packet.next().as<senf::DataPacket>());
 101     senf::PacketData::iterator i (uFragment_packet.next().data().begin());
 102     BOOST_CHECK_EQUAL( dFragment_packet.size(), 4u );
 103     BOOST_CHECK_EQUAL( dFragment_packet.data()[0], 0x11 );
 104 }
 105
 106
 107 BOOST_AUTO_UNIT_TEST(ipv6Extensions_routing)
 108 {
 109     unsigned char Routing_packetData[] = {
 110         // IP header
 111         0x60, 0x30, 0x00, 0x00,
 112         0x00, 0x10,             // payload Length
 113         0x2b,                   // next Header   (43 = Routing Header)
 114         0xff,                   // Hop Limit
 115         0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 116         0x02, 0x01, 0x02, 0xff, 0xfe, 0x00, 0x02, 0x00, // Src Addr
 117         0x35, 0x55, 0x55, 0x55, 0x66, 0x66, 0x66, 0x66,
 118         0x77, 0x77, 0x77, 0x77, 0x88, 0x88, 0x88, 0x88, // Dest. Addr
 119         // Routing Header
 120         0x3a,                   // nextHeader (58)
 121         0x00,                   // length ( 0 )
 122         0x00,                   // routing type ( 0 )
 123         0x00,                   // Left Segments ( 0 )
 124         0x00, 0x00, 0x00, 0x00, // reserved
 125         // ICMPv6
 126         0x01,                   // type: 1 (unreachable )
 127         0x00,                   // code: 0 (route unreachable)
 128         0xa3, 0xd3,             // checksum (incorrect in wireshark capture file, should be 0xa3c4)
 129         0x00, 0x00, 0x00, 0x00
 130     };
 131
 132     senf::IPv6Packet pRouting_packet (senf::IPv6Packet::create(Routing_packetData));
 133
 134     BOOST_CHECK_EQUAL( pRouting_packet->version(), 6u );
 135     BOOST_CHECK_EQUAL( pRouting_packet->length(), 16u );
 136     BOOST_CHECK_EQUAL( pRouting_packet->nextHeader(), 43u );
 137     BOOST_CHECK_EQUAL( pRouting_packet->source().value(),
 138             senf::INet6Address::from_string("fe80::201:2ff:fe00:200") );
 139     BOOST_CHECK_EQUAL( pRouting_packet->destination().value(),
 140             senf::INet6Address::from_string("3555:5555:6666:6666:7777:7777:8888:8888"));
 141
 142     std::ostringstream oss (std::ostringstream::out);
 143     SENF_CHECK_NO_THROW( pRouting_packet.dump( oss));
 144
 145     BOOST_REQUIRE( pRouting_packet.next().is<senf::IPv6RoutingPacket>() );
 146
 147     senf::IPv6RoutingPacket pRouting_extension (pRouting_packet.next().as<senf::IPv6RoutingPacket>());
 148
 149     BOOST_CHECK_EQUAL( pRouting_extension->nextHeader(), 58u );
 150     BOOST_CHECK_EQUAL( pRouting_extension->headerLength(), 0x00 );
 151     BOOST_CHECK_EQUAL( pRouting_extension->routingType(), 0x00 );
 152     BOOST_CHECK_EQUAL( pRouting_extension->segmentsLeft(), 0x00);
 153
 154     BOOST_CHECK_EQUAL( pRouting_extension->reserved(), 0u);
 155
 156     BOOST_REQUIRE( pRouting_extension.next().is<senf::ICMPv6Packet>() );
 157     senf::ICMPv6Packet pICMPv6 (pRouting_extension.next().as<senf::ICMPv6Packet>());
 158     BOOST_CHECK_EQUAL( pICMPv6->type(), 1u);
 159     BOOST_CHECK_EQUAL( pICMPv6->code(), 0u);
 160     BOOST_CHECK_EQUAL( pICMPv6->checksum(), 0xa3d3);
 161 }
 162
 163
 164 BOOST_AUTO_UNIT_TEST(ipv6Extensions_hopByHop_parse)
 165 {
 166     unsigned char HopByHop_packetData[] = {
 167         0x60, 0x00, 0x00, 0x00, // IP version, class, flow label
 168         0x00, 0x24,             // payload length
 169         0x00,                   // next header: IPv6 hop-by-hop option (0)
 170         0x01,                   // hop limit (1)
 171         0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 172         0x02, 0x19, 0xb9, 0xff, 0xfe, 0xeb, 0xb2, 0x26, // IPv6 Source address
 173         0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 174         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, // IPv6 Destination address ff02::16
 175         // HopByHop option
 176         0x3a, // next Header (ICMPv6)
 177         0x00, // Length (0 = 8Bytes)
 178         // option Header
 179         0x05, // option type
 180         0x02, // option Length (= 2 byte)
 181         0x00, 0x00, //data (zero data here ...)
 182         0x02, //option type (2, set for testing purposes only)
 183         0x00,  //option Type length (=0, no data field needed here)
 184         // ICMPv6
 185         0x8f, // type 143
 186         0x00, // code 0, should always be 0
 187         0x50, 0xcc, // checksum
 188     };
 189
 190     senf::IPv6Packet pHop_packet (senf::IPv6Packet::create(HopByHop_packetData));
 191     BOOST_CHECK_EQUAL( pHop_packet->version(), 6u );
 192     BOOST_CHECK_EQUAL( pHop_packet->length(), 36u );
 193     BOOST_CHECK_EQUAL( pHop_packet->nextHeader(), 0u );
 194     BOOST_CHECK_EQUAL( pHop_packet->source().value(),
 195             senf::INet6Address::from_string("fe80::219:b9ff:feeb:b226") );
 196     BOOST_CHECK_EQUAL( pHop_packet->destination().value(), senf::INet6Address::from_string("ff02::16") );
 197
 198     std::ostringstream oss (std::ostringstream::out);
 199     SENF_CHECK_NO_THROW( pHop_packet.dump( oss ));
 200
 201     BOOST_REQUIRE( pHop_packet.next().is<senf::IPv6HopByHopOptionsPacket>() );
 202     senf::IPv6HopByHopOptionsPacket pHop_extension (pHop_packet.next().as<senf::IPv6HopByHopOptionsPacket>());
 203     BOOST_CHECK_EQUAL( pHop_extension->nextHeader(), 58u );
 204     BOOST_CHECK_EQUAL( pHop_extension->headerLength(), 0x00 );
 205
 206     senf::IPv6HopByHopOptionsPacket::Parser::options_t::container optC(pHop_extension->options() );
 207     senf::IPv6HopByHopOptionsPacket::Parser::options_t::container::iterator listIter (optC.begin());
 208
 209     BOOST_CHECK_EQUAL( listIter->altAction(), 0u);
 210     BOOST_CHECK_EQUAL( listIter->changeFlag(), 0u);
 211     BOOST_CHECK_EQUAL( listIter->optionType(), 5u);
 212     BOOST_CHECK_EQUAL( listIter->optionLength(), 2u);
 213     ++listIter;
 214     BOOST_CHECK_EQUAL( listIter->altAction(), 0u);
 215     BOOST_CHECK_EQUAL( listIter->changeFlag(), 0u);
 216     BOOST_CHECK_EQUAL( listIter->optionType(), 2u);
 217     BOOST_CHECK_EQUAL( listIter->optionLength(), 0);
 218
 219     BOOST_REQUIRE( pHop_extension.next().is<senf::ICMPv6Packet>() );
 220     senf::ICMPv6Packet pICMPv6  (pHop_extension.next().as<senf::ICMPv6Packet>());
 221     BOOST_CHECK_EQUAL( pICMPv6->type(), 0x8f);
 222     BOOST_CHECK_EQUAL( pICMPv6->code(), 0u);
 223     BOOST_CHECK_EQUAL( pICMPv6->checksum(), 0x50cc);
 224 }
 225
 226 BOOST_AUTO_UNIT_TEST(ipv6Extensions_hopByHop_create)
 227 {
 228     std::ostringstream oss (std::ostringstream::out);
 229     unsigned char HopByHop_packetData[] = {
 230         // Ethernet
 231         0x33 ,0x33 ,0x00 ,0x00 ,0x00 ,0x16 , // destination MAC
 232         0x00 ,0x19 ,0xb9 ,0xeb ,0xb2 ,0x26 , // source MAC
 233         0x86 ,0xdd,                          // type (IPv6)
 234         // IPv6
 235         0x60, 0x00, 0x00, 0x00, // IP version, class, flow label
 236         0x00, 0x24,             // payload length
 237         0x00,                   // next header: IPv6 hop-by-hop option (0)
 238         0x01,                   // hop limit (1)
 239         0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // IPv6 Source address
 240         0x02, 0x19, 0xb9, 0xff, 0xfe, 0xeb, 0xb2, 0x26, // (fe80::219:b9ff:feeb:b226)
 241         0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // IPv6 Destination address
 242         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, // (ff02::16)
 243         // HopByHop option
 244         0x3a, // next Header (ICMPv6)
 245         0x00, // Length (0 = 8Bytes)
 246         // option Header
 247         0x05, // option type
 248         0x02, // option Length (= 2 byte)
 249         0x00, 0x00, // data (zero data here ...)
 250         0x01, 0x00, // padding
 251         // ICMPv6
 252         0x8f, // type 143
 253         0x00, // code 0, should always be 0
 254         0x50 ,0xcc , // checksum
 255         // MLDv2
 256         0x00 ,0x00 , // reserved, zero by default
 257         0x00 ,0x01 , // nr of McAddressRecords
 258         0x04 ,       // recordType
 259         0x00 ,       // auxiliarydatalength
 260         0x00 ,0x00 , // number of sources
 261         0xff ,0x02 ,0x00 ,0x00, 0x00 ,0x00 ,0x00 ,0x00 ,  // ipv6McAddress ff02::1:ffeb:b226
 262         0x00 ,0x00 ,0x00 ,0x01 ,0xff ,0xeb ,0xb2 ,0x26
 263     };
 264     senf::EthernetPacket eth (senf::EthernetPacket::create() );
 265     eth->destination() = senf::MACAddress::from_string( "33:33:00:00:00:16" );
 266     eth->source() = senf::MACAddress::from_string( "00:19:b9:eb:b2:26" );
 267     eth->type_length() = 0x86dd;
 268
 269     senf::IPv6Packet ip (senf::IPv6Packet::createAfter(eth));
 270     ip->version() = 6u;
 271     ip->length() = 12u;
 272     ip->nextHeader() = 0u;
 273     ip->hopLimit() = 1u;
 274     ip->source() = senf::INet6Address::from_string("fe80::219:b9ff:feeb:b226");
 275     ip->destination() = senf::INet6Address::from_string("ff02::16");
 276
 277     senf::IPv6HopByHopOptionsPacket pext (senf::IPv6HopByHopOptionsPacket::createAfter(ip) );
 278     pext->nextHeader() = 58u;
 279     pext->headerLength() = 0u;
 280     {
 281         senf::IPv6HopByHopOptionsPacket::Parser::options_t::container optC(pext->options() );
 282         {
 283             senf::IPv6GenericOptionTLVParser opt ( optC.push_back_space().init<senf::IPv6GenericOptionTLVParser>());
 284             opt.altAction() = 0u;
 285             opt.changeFlag() = 0u;
 286             opt.optionType() = 5u;
 287             unsigned char val[] = {0x00, 0x00};
 288             opt.setPayload(val);
 289         }
 290     }
 291
 292     senf::ICMPv6Packet icmp (senf::ICMPv6Packet::createAfter (pext));
 293     icmp->code() = 0u;
 294     senf::MLDv2ListenerReport mld ( senf::MLDv2ListenerReport::createAfter(icmp) );
 295     {
 296         senf::MLDv2ListenerReport::Parser::mcastAddrRecords_t::container c (mld->mcastAddrRecords() );
 297         c.push_back_space();
 298         c.back().recordType() = 4u;
 299         senf::INet6Address addr( senf::INet6Address::from_string("ff02::1:ffeb:b226") );
 300         c.back().mcAddress() = addr;
 301     }
 302     eth.finalizeAll();
 303     SENF_CHECK_NO_THROW( eth.dump(oss) );
 304     SENF_CHECK_EQUAL_COLLECTIONS(
 305             HopByHop_packetData, HopByHop_packetData+sizeof(HopByHop_packetData),
 306             eth.data().begin(), eth.data().end() );
 307 }
 308
 309 namespace {
 310     struct IPv6ChecksumOptionTLVParser : public senf::IPv6OptionTLVParser
 311     {
 312     #   include SENF_PARSER()
 313         SENF_PARSER_INHERIT ( IPv6OptionTLVParser );
 314         SENF_PARSER_FIELD ( slfNetType, senf::UInt8Parser  );
 315         SENF_PARSER_FIELD ( checksum,   senf::UInt32Parser );
 316
 317         SENF_PARSER_INIT() {
 318             optionType() = typeCode;
 319             optionLength() = senf::init_bytes<IPv6ChecksumOptionTLVParser>::value -senf::init_bytes<IPv6OptionTLVParser>::value;
 320             slfNetType() = SN_typeCode;
 321         }
 322         SENF_PARSER_FINALIZE ( IPv6ChecksumOptionTLVParser );
 323         static const boost::uint8_t typeCode = 0x0d;
 324         static const boost::uint8_t SN_typeCode = 0x4d;
 325     };
 326 }
 327
 328 BOOST_AUTO_UNIT_TEST(ipv6Extensions_hopByHop_create_SN) {
 329     unsigned char data[] = {
 330             0x3a, 0x01,  // Hop-By-Hop Header (nextHeader, length)
 331             0x0d, 0x05,  // option type, length
 332             // option value: slfNetType, checksum
 333             0x01, 0x01, 0x23, 0x45, 0x67,
 334             // padding (PadN option: type, length, 0-padding)
 335             0x01, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00
 336     };
 337
 338     senf::IPv6HopByHopOptionsPacket p ( senf::IPv6HopByHopOptionsPacket::create() );
 339     p->nextHeader() = 0x3a;
 340     {
 341         senf::IPv6HopByHopOptionsPacket::Parser::options_t::container optC(p->options() );
 342         {
 343             IPv6ChecksumOptionTLVParser opt (
 344                     optC.push_back_space().init<IPv6ChecksumOptionTLVParser>());
 345             SENF_CHECK_NO_THROW( opt.slfNetType() = 1u) ;
 346             opt.checksum() = 0x01234567u;
 347         }
 348     }
 349
 350     SENF_CHECK_EQUAL_COLLECTIONS( data, data+sizeof(data),
 351                                  p.data().begin(), p.data().end() );
 352 }
 353
 354 ///////////////////////////////cc.e////////////////////////////////////////
 355 #undef prefix_
 356
 357 \f
 358 // Local Variables:
 359 // mode: c++
 360 // fill-column: 100
 361 // c-file-style: "senf"
 362 // indent-tabs-mode: nil
 363 // ispell-local-dictionary: "american"
 364 // compile-command: "scons -u test"
 365 // comment-column: 40
 366 // End: