Socket/Protocols/INet/INet6Address.cci

   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 //
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 2 of the License, or
  11 // (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the
  20 // Free Software Foundation, Inc.,
  21 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22
  23 /** \file
  24     \brief INet6Address inline non-template implementation */
  25
  26 #include "INet6Address.ih"
  27
  28 // Custom includes
  29 #include <algorithm>
  30 #include <boost/lambda/lambda.hpp>
  31
  32 #define prefix_ inline
  33 ///////////////////////////////cci.p///////////////////////////////////////
  34
  35 prefix_ senf::INet6Address::INet6Address(senf::NoInit_t)
  36 {}
  37
  38 prefix_ senf::INet6Address::INet6Address(boost::uint16_t a0, boost::uint16_t a1,
  39                                          boost::uint16_t a2, boost::uint16_t a3,
  40                                          boost::uint16_t a4, boost::uint16_t a5,
  41                                          boost::uint16_t a6, boost::uint16_t a7)
  42 {
  43     (*this)[ 0] = boost::uint8_t(a0>>8);
  44     (*this)[ 1] = boost::uint8_t(a0);
  45     (*this)[ 2] = boost::uint8_t(a1>>8);
  46     (*this)[ 3] = boost::uint8_t(a1);
  47     (*this)[ 4] = boost::uint8_t(a2>>8);
  48     (*this)[ 5] = boost::uint8_t(a2);
  49     (*this)[ 6] = boost::uint8_t(a3>>8);
  50     (*this)[ 7] = boost::uint8_t(a3);
  51     (*this)[ 8] = boost::uint8_t(a4>>8);
  52     (*this)[ 9] = boost::uint8_t(a4);
  53     (*this)[10] = boost::uint8_t(a5>>8);
  54     (*this)[11] = boost::uint8_t(a5);
  55     (*this)[12] = boost::uint8_t(a6>>8);
  56     (*this)[13] = boost::uint8_t(a6);
  57     (*this)[14] = boost::uint8_t(a7>>8);
  58     (*this)[15] = boost::uint8_t(a7);
  59 }
  60
  61 prefix_ senf::INet6Address senf::INet6Address::from_inet4address(INet4Address addr4)
  62 {
  63     INet6Address addr;
  64     addr[10] = 0xffu;
  65     addr[11] = 0xffu;
  66     std::copy(addr4.begin(), addr4.end(), addr.begin()+12);
  67     return addr;
  68 }
  69
  70 prefix_ boost::uint64_t senf::INet6Address::network()
  71     const
  72 {
  73     return
  74         ((boost::uint64_t((*this)[0]) & 0xff) << 56 ) |
  75         ((boost::uint64_t((*this)[1]) & 0xff) << 48 ) |
  76         ((boost::uint64_t((*this)[2]) & 0xff) << 40 ) |
  77         ((boost::uint64_t((*this)[3]) & 0xff) << 32 ) |
  78         ((boost::uint64_t((*this)[4]) & 0xff) << 24 ) |
  79         ((boost::uint64_t((*this)[5]) & 0xff) << 16 ) |
  80         ((boost::uint64_t((*this)[6]) & 0xff) <<  8 ) |
  81         ((boost::uint64_t((*this)[7]) & 0xff)       );
  82 }
  83
  84 prefix_ bool senf::INet6Address::hasEuid64()
  85     const
  86 {
  87     return unicast() && ((*this)[0]&0xE0u) != 0u;
  88 }
  89
  90 prefix_ boost::uint64_t senf::INet6Address::id()
  91     const
  92 {
  93     return
  94         ((boost::uint64_t((*this)[ 8]) & 0xff) << 56 ) |
  95         ((boost::uint64_t((*this)[ 9]) & 0xff) << 48 ) |
  96         ((boost::uint64_t((*this)[10]) & 0xff) << 40 ) |
  97         ((boost::uint64_t((*this)[11]) & 0xff) << 32 ) |
  98         ((boost::uint64_t((*this)[12]) & 0xff) << 24 ) |
  99         ((boost::uint64_t((*this)[13]) & 0xff) << 16 ) |
 100         ((boost::uint64_t((*this)[14]) & 0xff) <<  8 ) |
 101         ((boost::uint64_t((*this)[15]) & 0xff)       );
 102 }
 103
 104 prefix_ bool senf::INet6Address::universalId()
 105     const
 106 {
 107     return (*this)[8] & 2u;
 108 }
 109
 110 prefix_ bool senf::INet6Address::groupId()
 111     const
 112 {
 113     return (*this)[8] & 1u;
 114 }
 115
 116 prefix_ bool senf::INet6Address::unicast()
 117     const
 118 {
 119     return ! multicast();
 120 }
 121
 122 prefix_ bool senf::INet6Address::multicast()
 123     const
 124 {
 125     return (*this)[0] == 0xFFu;
 126 }
 127
 128 prefix_ senf::INet6Address::ScopeId senf::INet6Address::scope()
 129     const
 130 {
 131     static ScopeId const scopeMap[]
 132         = { ReservedScope, InterfaceScope, LinkScope, ReservedScope,
 133             AdminScope, SiteScope, UnassignedScope, UnassignedScope,
 134             OrganizationScope, UnassignedScope, UnassignedScope, UnassignedScope,
 135             UnassignedScope, UnassignedScope, GlobalScope, ReservedScope };
 136     return multicast() ? scopeMap[(*this)[1] & 0x0Fu] :
 137         (*this)[0] == 0xFEu ? (((*this)[1]&0xC0) == 0x80 ? LinkScope :
 138                                ((*this)[1]&0xC0) == 0xC0 ? SiteScope : GlobalScope )
 139         : GlobalScope;
 140 }
 141
 142 prefix_ bool senf::INet6Address::globalScope()
 143     const
 144 {
 145     return scope() == GlobalScope;
 146 }
 147
 148 prefix_ bool senf::INet6Address::linkScope()
 149     const
 150 {
 151     return scope() == LinkScope;
 152 }
 153
 154 prefix_ senf::INet4Address senf::INet6Address::inet4address()
 155     const
 156 {
 157     return INet4Address::from_data(&(*this)[12]);
 158 }
 159
 160 prefix_ bool senf::INet6Address::ipv4Compatible()
 161     const
 162 {
 163     return CheckINet6Network<0u,96>::match(*this);
 164 }
 165
 166 prefix_ bool senf::INet6Address::ipv4Mapped()
 167     const
 168 {
 169     return CheckINet6Network<0u,0u,0u,0u,0u,0xFFFFu,96>::match(*this);
 170 }
 171
 172 prefix_ bool senf::INet6Address::globalMulticastAddr()
 173     const
 174 {
 175     return multicast() && ! ((*this)[1] & 0x10u);
 176 }
 177
 178 prefix_ bool senf::INet6Address::prefixMulticastAddr()
 179     const
 180 {
 181     return multicast() && ((*this)[1] & 0x20u);
 182 }
 183
 184 prefix_ bool senf::INet6Address::embeddedRpAddr()
 185     const
 186 {
 187     return multicast() && ((*this)[1] & 0x40u);
 188 }
 189
 190 prefix_ bool senf::INet6Address::boolean_test()
 191     const
 192 {
 193     using boost::lambda::_1;
 194     return std::find_if(begin(),end(), _1 != 0x00) != end();
 195 }
 196
 197 prefix_ void senf::INet6Address::network(boost::uint64_t net)
 198 {
 199     (*this)[ 0] = net >> 56;
 200     (*this)[ 1] = net >> 48;
 201     (*this)[ 2] = net >> 40;
 202     (*this)[ 3] = net >> 32;
 203     (*this)[ 4] = net >> 24;
 204     (*this)[ 5] = net >> 16;
 205     (*this)[ 6] = net >>  8;
 206     (*this)[ 7] = net      ;
 207 }
 208
 209 prefix_ void senf::INet6Address::id(boost::uint64_t id)
 210 {
 211     (*this)[ 8] = id >> 56;
 212     (*this)[ 9] = id >> 48;
 213     (*this)[10] = id >> 40;
 214     (*this)[11] = id >> 32;
 215     (*this)[12] = id >> 24;
 216     (*this)[13] = id >> 16;
 217     (*this)[14] = id >>  8;
 218     (*this)[15] = id      ;
 219 }
 220
 221 ///////////////////////////////////////////////////////////////////////////
 222 // senf::INet6Network
 223
 224 prefix_ senf::INet6Network::INet6Network()
 225     : prefix_len_(), address_()
 226 {}
 227
 228 prefix_ senf::INet6Network::INet6Network(INet6Address address, unsigned prefix_len)
 229     : prefix_len_(prefix_len), address_(address)
 230 {
 231     using boost::lambda::_1;
 232     using boost::lambda::_2;
 233     detail::apply_mask(prefix_len_, address_.begin(), address_.end(), _1 &= _2);
 234 }
 235
 236 prefix_ senf::INet6Address const & senf::INet6Network::address()
 237     const
 238 {
 239     return address_;
 240 }
 241
 242 prefix_ unsigned senf::INet6Network::prefix_len()
 243     const
 244 {
 245     return prefix_len_;
 246 }
 247
 248 prefix_ bool senf::INet6Network::boolean_test()
 249     const
 250 {
 251     return prefix_len() && address();
 252 }
 253
 254 prefix_ bool senf::INet6Network::operator==(INet6Network const & other)
 255     const
 256 {
 257     return prefix_len() == other.prefix_len() && address() == other.address();
 258 }
 259
 260 prefix_ bool senf::INet6Network::match(INet6Address addr)
 261     const
 262 {
 263     using boost::lambda::_1;
 264     using boost::lambda::_2;
 265     using boost::lambda::_3;
 266     return detail::find_if_mask(prefix_len_, address_.begin(), address_.end(), addr.begin(),
 267                                 _1 != (_2 & _3)) == address_.end();
 268 }
 269
 270 prefix_ bool senf::INet6Network::match(INet6Network net)
 271     const
 272 {
 273     return net.prefix_len() >= prefix_len() && match(net.address());
 274 }
 275
 276 prefix_ senf::INet6Address senf::INet6Network::host(boost::uint64_t id)
 277 {
 278     INet6Address addr (address());
 279     addr.id(id);
 280     return addr;
 281 }
 282
 283 prefix_ senf::INet6Network senf::INet6Network::subnet(boost::uint64_t net, unsigned prefix_len)
 284 {
 285     using boost::lambda::_1;
 286     using boost::lambda::_2;
 287     using boost::lambda::var;
 288     using boost::lambda::ret;
 289     INet6Address addr (address());
 290     net <<= (64-prefix_len);
 291     detail::apply_mask(prefix_len, addr.begin(), addr.end(),
 292                        ( ( _1 |= ret<boost::uint8_t>((var(net) >> 56) & _2) ),
 293                          ( var(net) <<= 8 ) ));
 294     return INet6Network(addr, prefix_len);
 295 }
 296
 297 prefix_ std::ostream & senf::operator<<(std::ostream & os, INet6Network const & addr)
 298 {
 299     os << addr.address() << '/' << addr.prefix_len();
 300     return os;
 301 }
 302
 303 ///////////////////////////////////////////////////////////////////////////
 304 // namespace senf::detail members
 305
 306 prefix_ boost::uint8_t senf::detail::low_bits_mask(unsigned bits)
 307 {
 308     return ((1<<bits)-1);
 309 }
 310
 311 ///////////////////////////////cci.e///////////////////////////////////////
 312 #undef prefix_
 313
 314 \f
 315 // Local Variables:
 316 // mode: c++
 317 // fill-column: 100
 318 // comment-column: 40
 319 // c-file-style: "senf"
 320 // indent-tabs-mode: nil
 321 // ispell-local-dictionary: "american"
 322 // compile-command: "scons -u test"
 323 // End: