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_in6addr(in6_addr const & in6addr)
  62 {
  63     return senf::INet6Address::from_data(&in6addr.s6_addr[0]);
  64 }
  65
  66 prefix_ senf::INet6Address senf::INet6Address::from_inet4address(INet4Address addr4)
  67 {
  68     INet6Address addr;
  69     addr[10] = 0xffu;
  70     addr[11] = 0xffu;
  71     std::copy(addr4.begin(), addr4.end(), addr.begin()+12);
  72     return addr;
  73 }
  74
  75 prefix_ boost::uint64_t senf::INet6Address::network()
  76     const
  77 {
  78     return
  79         ((boost::uint64_t((*this)[0]) & 0xff) << 56 ) |
  80         ((boost::uint64_t((*this)[1]) & 0xff) << 48 ) |
  81         ((boost::uint64_t((*this)[2]) & 0xff) << 40 ) |
  82         ((boost::uint64_t((*this)[3]) & 0xff) << 32 ) |
  83         ((boost::uint64_t((*this)[4]) & 0xff) << 24 ) |
  84         ((boost::uint64_t((*this)[5]) & 0xff) << 16 ) |
  85         ((boost::uint64_t((*this)[6]) & 0xff) <<  8 ) |
  86         ((boost::uint64_t((*this)[7]) & 0xff)       );
  87 }
  88
  89 prefix_ boost::uint64_t senf::INet6Address::id()
  90     const
  91 {
  92     return
  93         ((boost::uint64_t((*this)[ 8]) & 0xff) << 56 ) |
  94         ((boost::uint64_t((*this)[ 9]) & 0xff) << 48 ) |
  95         ((boost::uint64_t((*this)[10]) & 0xff) << 40 ) |
  96         ((boost::uint64_t((*this)[11]) & 0xff) << 32 ) |
  97         ((boost::uint64_t((*this)[12]) & 0xff) << 24 ) |
  98         ((boost::uint64_t((*this)[13]) & 0xff) << 16 ) |
  99         ((boost::uint64_t((*this)[14]) & 0xff) <<  8 ) |
 100         ((boost::uint64_t((*this)[15]) & 0xff)       );
 101 }
 102
 103 prefix_ bool senf::INet6Address::universalId()
 104     const
 105 {
 106     return (*this)[8] & 2u;
 107 }
 108
 109 prefix_ bool senf::INet6Address::groupId()
 110     const
 111 {
 112     return (*this)[8] & 1u;
 113 }
 114
 115 prefix_ senf::INet4Address senf::INet6Address::inet4address()
 116     const
 117 {
 118     return INet4Address::from_data(&(*this)[12]);
 119 }
 120
 121 prefix_ bool senf::INet6Address::inet4Mapped()
 122     const
 123 {
 124     return CheckINet6Network<0u,0u,0u,0u,0u,0xFFFFu,96>::match(*this);
 125 }
 126
 127 prefix_ bool senf::INet6Address::multicast()
 128     const
 129 {
 130     return (*this)[0] == 0xFFu || inet4Mapped() && inet4address().multicast();
 131 }
 132
 133 prefix_ senf::INet6Address::ScopeId senf::INet6Address::scope()
 134     const
 135 {
 136     static ScopeId const scopeMap[]
 137         = { ReservedScope, InterfaceScope, LinkScope, ReservedScope,
 138             AdminScope, SiteScope, UnassignedScope, UnassignedScope,
 139             OrganizationScope, UnassignedScope, UnassignedScope, UnassignedScope,
 140             UnassignedScope, UnassignedScope, GlobalScope, ReservedScope };
 141     return multicast() ? scopeMap[(*this)[1] & 0x0Fu] :
 142         (*this)[0] == 0xFEu ? (((*this)[1]&0xC0) == 0x80 ? LinkScope :
 143                                ((*this)[1]&0xC0) == 0xC0 ? SiteScope : GlobalScope )
 144         : GlobalScope;
 145 }
 146
 147 prefix_ bool senf::INet6Address::unicast()
 148     const
 149 {
 150     return ! multicast();
 151 }
 152
 153 prefix_ bool senf::INet6Address::hasEuid64()
 154     const
 155 {
 156     return unicast() && ((*this)[0]&0xE0u) != 0u;
 157 }
 158
 159 prefix_ bool senf::INet6Address::globalScope()
 160     const
 161 {
 162     return scope() == GlobalScope;
 163 }
 164
 165 prefix_ bool senf::INet6Address::linkScope()
 166     const
 167 {
 168     return scope() == LinkScope;
 169 }
 170
 171 prefix_ bool senf::INet6Address::inet4Compatible()
 172     const
 173 {
 174     return CheckINet6Network<0u,96>::match(*this);
 175 }
 176
 177 prefix_ bool senf::INet6Address::globalMulticastAddr()
 178     const
 179 {
 180     return multicast() && ! ((*this)[1] & 0x10u);
 181 }
 182
 183 prefix_ bool senf::INet6Address::prefixMulticastAddr()
 184     const
 185 {
 186     return multicast() && ((*this)[1] & 0x20u);
 187 }
 188
 189 prefix_ bool senf::INet6Address::embeddedRpAddr()
 190     const
 191 {
 192     return multicast() && ((*this)[1] & 0x40u);
 193 }
 194
 195 prefix_ bool senf::INet6Address::boolean_test()
 196     const
 197 {
 198     using boost::lambda::_1;
 199     return std::find_if(begin(),end(), _1 != 0x00) != end();
 200 }
 201
 202 prefix_ void senf::INet6Address::network(boost::uint64_t net)
 203 {
 204     (*this)[ 0] = net >> 56;
 205     (*this)[ 1] = net >> 48;
 206     (*this)[ 2] = net >> 40;
 207     (*this)[ 3] = net >> 32;
 208     (*this)[ 4] = net >> 24;
 209     (*this)[ 5] = net >> 16;
 210     (*this)[ 6] = net >>  8;
 211     (*this)[ 7] = net      ;
 212 }
 213
 214 prefix_ void senf::INet6Address::id(boost::uint64_t id)
 215 {
 216     (*this)[ 8] = id >> 56;
 217     (*this)[ 9] = id >> 48;
 218     (*this)[10] = id >> 40;
 219     (*this)[11] = id >> 32;
 220     (*this)[12] = id >> 24;
 221     (*this)[13] = id >> 16;
 222     (*this)[14] = id >>  8;
 223     (*this)[15] = id      ;
 224 }
 225
 226 ///////////////////////////////////////////////////////////////////////////
 227 // senf::INet6Network
 228
 229 prefix_ senf::INet6Network::INet6Network()
 230     : prefix_len_(), address_()
 231 {}
 232
 233 prefix_ senf::INet6Network::INet6Network(INet6Address address, unsigned prefix_len)
 234     : prefix_len_(prefix_len), address_(address)
 235 {
 236     using boost::lambda::_1;
 237     using boost::lambda::_2;
 238     detail::apply_mask(prefix_len_, address_.begin(), address_.end(), _1 &= _2);
 239 }
 240
 241 prefix_ senf::INet6Address const & senf::INet6Network::address()
 242     const
 243 {
 244     return address_;
 245 }
 246
 247 prefix_ unsigned senf::INet6Network::prefix_len()
 248     const
 249 {
 250     return prefix_len_;
 251 }
 252
 253 prefix_ bool senf::INet6Network::boolean_test()
 254     const
 255 {
 256     return prefix_len() && address();
 257 }
 258
 259 prefix_ bool senf::INet6Network::operator==(INet6Network const & other)
 260     const
 261 {
 262     return prefix_len() == other.prefix_len() && address() == other.address();
 263 }
 264
 265 prefix_ bool senf::INet6Network::match(INet6Address addr)
 266     const
 267 {
 268     using boost::lambda::_1;
 269     using boost::lambda::_2;
 270     using boost::lambda::_3;
 271     return detail::find_if_mask(prefix_len_, address_.begin(), address_.end(), addr.begin(),
 272                                 _1 != (_2 & _3)) == address_.end();
 273 }
 274
 275 prefix_ bool senf::INet6Network::match(INet6Network net)
 276     const
 277 {
 278     return net.prefix_len() >= prefix_len() && match(net.address());
 279 }
 280
 281 prefix_ senf::INet6Address senf::INet6Network::host(boost::uint64_t id)
 282 {
 283     INet6Address addr (address());
 284     addr.id(id);
 285     return addr;
 286 }
 287
 288 prefix_ senf::INet6Network senf::INet6Network::subnet(boost::uint64_t net, unsigned prefix_len)
 289 {
 290     using boost::lambda::_1;
 291     using boost::lambda::_2;
 292     using boost::lambda::var;
 293     using boost::lambda::ret;
 294     INet6Address addr (address());
 295     net <<= (64-prefix_len);
 296     detail::apply_mask(prefix_len, addr.begin(), addr.end(),
 297                        ( ( _1 |= ret<boost::uint8_t>((var(net) >> 56) & _2) ),
 298                          ( var(net) <<= 8 ) ));
 299     return INet6Network(addr, prefix_len);
 300 }
 301
 302 prefix_ std::ostream & senf::operator<<(std::ostream & os, INet6Network const & addr)
 303 {
 304     os << addr.address() << '/' << addr.prefix_len();
 305     return os;
 306 }
 307
 308 ///////////////////////////////////////////////////////////////////////////
 309 // namespace senf::detail members
 310
 311 prefix_ boost::uint8_t senf::detail::low_bits_mask(unsigned bits)
 312 {
 313     return ((1<<bits)-1);
 314 }
 315
 316 ///////////////////////////////cci.e///////////////////////////////////////
 317 #undef prefix_
 318
 319 \f
 320 // Local Variables:
 321 // mode: c++
 322 // fill-column: 100
 323 // comment-column: 40
 324 // c-file-style: "senf"
 325 // indent-tabs-mode: nil
 326 // ispell-local-dictionary: "american"
 327 // compile-command: "scons -u test"
 328 // End: