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