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 const & 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_ senf::INet6Address senf::INet6Address::from_mac(senf::MACAddress const & mac)
  76 {
  77     INet6Address addr;
  78     addr[0] = 0xfe;
  79     addr[1] = 0x80;
  80     addr[8] = mac[0];
  81     addr[9] = mac[1];
  82     addr[10] = mac[2];
  83     addr[11] = 0xff;
  84     addr[12] = 0xfe;
  85     addr[13] = mac[3];
  86     addr[14] = mac[4];
  87     addr[15] = mac[5];
  88     return addr;
  89 }
  90
  91 prefix_ boost::uint64_t senf::INet6Address::network()
  92     const
  93 {
  94     return
  95         ((boost::uint64_t((*this)[0]) & 0xff) << 56 ) |
  96         ((boost::uint64_t((*this)[1]) & 0xff) << 48 ) |
  97         ((boost::uint64_t((*this)[2]) & 0xff) << 40 ) |
  98         ((boost::uint64_t((*this)[3]) & 0xff) << 32 ) |
  99         ((boost::uint64_t((*this)[4]) & 0xff) << 24 ) |
 100         ((boost::uint64_t((*this)[5]) & 0xff) << 16 ) |
 101         ((boost::uint64_t((*this)[6]) & 0xff) <<  8 ) |
 102         ((boost::uint64_t((*this)[7]) & 0xff)       );
 103 }
 104
 105 prefix_ boost::uint64_t senf::INet6Address::id()
 106     const
 107 {
 108     return
 109         ((boost::uint64_t((*this)[ 8]) & 0xff) << 56 ) |
 110         ((boost::uint64_t((*this)[ 9]) & 0xff) << 48 ) |
 111         ((boost::uint64_t((*this)[10]) & 0xff) << 40 ) |
 112         ((boost::uint64_t((*this)[11]) & 0xff) << 32 ) |
 113         ((boost::uint64_t((*this)[12]) & 0xff) << 24 ) |
 114         ((boost::uint64_t((*this)[13]) & 0xff) << 16 ) |
 115         ((boost::uint64_t((*this)[14]) & 0xff) <<  8 ) |
 116         ((boost::uint64_t((*this)[15]) & 0xff)       );
 117 }
 118
 119 prefix_ bool senf::INet6Address::universalId()
 120     const
 121 {
 122     return (*this)[8] & 2u;
 123 }
 124
 125 prefix_ bool senf::INet6Address::groupId()
 126     const
 127 {
 128     return (*this)[8] & 1u;
 129 }
 130
 131 prefix_ senf::INet4Address senf::INet6Address::inet4address()
 132     const
 133 {
 134     return INet4Address::from_data(&(*this)[12]);
 135 }
 136
 137 prefix_ bool senf::INet6Address::inet4Mapped()
 138     const
 139 {
 140     return CheckINet6Network<0u,0u,0u,0u,0u,0xFFFFu,96>::match(*this);
 141 }
 142
 143 prefix_ bool senf::INet6Address::multicast()
 144     const
 145 {
 146     return (*this)[0] == 0xFFu || (inet4Mapped() && inet4address().multicast());
 147 }
 148
 149 prefix_ senf::INet6Address::ScopeId senf::INet6Address::scope()
 150     const
 151 {
 152     static ScopeId const scopeMap[]
 153         = { ReservedScope, InterfaceScope, LinkScope, ReservedScope,
 154             AdminScope, SiteScope, UnassignedScope, UnassignedScope,
 155             OrganizationScope, UnassignedScope, UnassignedScope, UnassignedScope,
 156             UnassignedScope, UnassignedScope, GlobalScope, ReservedScope };
 157     return multicast() ? scopeMap[(*this)[1] & 0x0Fu] :
 158         (*this)[0] == 0xFEu ? (((*this)[1]&0xC0) == 0x80 ? LinkScope :
 159                                ((*this)[1]&0xC0) == 0xC0 ? SiteScope : GlobalScope )
 160         : GlobalScope;
 161 }
 162
 163 prefix_ bool senf::INet6Address::unicast()
 164     const
 165 {
 166     return ! multicast();
 167 }
 168
 169 prefix_ bool senf::INet6Address::hasEuid64()
 170     const
 171 {
 172     return unicast() && ((*this)[0]&0xE0u) != 0u;
 173 }
 174
 175 prefix_ bool senf::INet6Address::globalScope()
 176     const
 177 {
 178     return scope() == GlobalScope;
 179 }
 180
 181 prefix_ bool senf::INet6Address::linkScope()
 182     const
 183 {
 184     return scope() == LinkScope;
 185 }
 186
 187 prefix_ bool senf::INet6Address::inet4Compatible()
 188     const
 189 {
 190     return CheckINet6Network<0u,96>::match(*this);
 191 }
 192
 193 prefix_ bool senf::INet6Address::globalMulticastAddr()
 194     const
 195 {
 196     return multicast() && ! ((*this)[1] & 0x10u);
 197 }
 198
 199 prefix_ bool senf::INet6Address::prefixMulticastAddr()
 200     const
 201 {
 202     return multicast() && ((*this)[1] & 0x20u);
 203 }
 204
 205 prefix_ bool senf::INet6Address::embeddedRpAddr()
 206     const
 207 {
 208     return multicast() && ((*this)[1] & 0x40u);
 209 }
 210
 211 prefix_ bool senf::INet6Address::boolean_test()
 212     const
 213 {
 214     using boost::lambda::_1;
 215     return std::find_if(begin(),end(), _1 != 0x00) != end();
 216 }
 217
 218 prefix_ void senf::INet6Address::network(boost::uint64_t net)
 219 {
 220     (*this)[ 0] = net >> 56;
 221     (*this)[ 1] = net >> 48;
 222     (*this)[ 2] = net >> 40;
 223     (*this)[ 3] = net >> 32;
 224     (*this)[ 4] = net >> 24;
 225     (*this)[ 5] = net >> 16;
 226     (*this)[ 6] = net >>  8;
 227     (*this)[ 7] = net      ;
 228 }
 229
 230 prefix_ void senf::INet6Address::id(boost::uint64_t id)
 231 {
 232     (*this)[ 8] = id >> 56;
 233     (*this)[ 9] = id >> 48;
 234     (*this)[10] = id >> 40;
 235     (*this)[11] = id >> 32;
 236     (*this)[12] = id >> 24;
 237     (*this)[13] = id >> 16;
 238     (*this)[14] = id >>  8;
 239     (*this)[15] = id      ;
 240 }
 241
 242 ///////////////////////////////////////////////////////////////////////////
 243 // senf::INet6Network
 244
 245 prefix_ senf::INet6Network::INet6Network()
 246     : prefix_len_(), address_()
 247 {}
 248
 249 prefix_ senf::INet6Network::INet6Network(INet6Address const & address, unsigned prefix_len)
 250     : prefix_len_(prefix_len), address_(address)
 251 {
 252     using boost::lambda::_1;
 253     using boost::lambda::_2;
 254     detail::apply_mask(prefix_len_, address_.begin(), address_.end(), _1 &= _2);
 255 }
 256
 257 prefix_ senf::INet6Address const & senf::INet6Network::address()
 258     const
 259 {
 260     return address_;
 261 }
 262
 263 prefix_ unsigned senf::INet6Network::prefix_len()
 264     const
 265 {
 266     return prefix_len_;
 267 }
 268
 269 prefix_ bool senf::INet6Network::boolean_test()
 270     const
 271 {
 272     return prefix_len() && address();
 273 }
 274
 275 prefix_ bool senf::INet6Network::operator==(INet6Network const & other)
 276     const
 277 {
 278     return prefix_len() == other.prefix_len() && address() == other.address();
 279 }
 280
 281 prefix_ bool senf::INet6Network::match(INet6Address const & addr)
 282     const
 283 {
 284     using boost::lambda::_1;
 285     using boost::lambda::_2;
 286     using boost::lambda::_3;
 287     return detail::find_if_mask(prefix_len_, address_.begin(), address_.end(), addr.begin(),
 288                                 _1 != (_2 & _3)) == address_.end();
 289 }
 290
 291 prefix_ bool senf::INet6Network::match(INet6Network const & net)
 292     const
 293 {
 294     return net.prefix_len() >= prefix_len() && match(net.address());
 295 }
 296
 297 prefix_ senf::INet6Address senf::INet6Network::host(boost::uint64_t id)
 298 {
 299     INet6Address addr (address());
 300     addr.id(id);
 301     return addr;
 302 }
 303
 304 prefix_ senf::INet6Network senf::INet6Network::subnet(boost::uint64_t net, unsigned prefix_len)
 305 {
 306     using boost::lambda::_1;
 307     using boost::lambda::_2;
 308     using boost::lambda::var;
 309     using boost::lambda::ret;
 310     INet6Address addr (address());
 311     net <<= (64-prefix_len);
 312     detail::apply_mask(prefix_len, addr.begin(), addr.end(),
 313                        ( ( _1 |= ret<boost::uint8_t>((var(net) >> 56) & _2) ),
 314                          ( var(net) <<= 8 ) ));
 315     return INet6Network(addr, prefix_len);
 316 }
 317
 318 prefix_ std::ostream & senf::operator<<(std::ostream & os, INet6Network const & addr)
 319 {
 320     os << addr.address() << '/' << addr.prefix_len();
 321     return os;
 322 }
 323
 324 ///////////////////////////////////////////////////////////////////////////
 325 // namespace senf::detail members
 326
 327 prefix_ boost::uint8_t senf::detail::low_bits_mask(unsigned bits)
 328 {
 329     return ((1<<bits)-1);
 330 }
 331
 332 ///////////////////////////////cci.e///////////////////////////////////////
 333 #undef prefix_
 334
 335
 336 // Local Variables:
 337 // mode: c++
 338 // fill-column: 100
 339 // comment-column: 40
 340 // c-file-style: "senf"
 341 // indent-tabs-mode: nil
 342 // ispell-local-dictionary: "american"
 343 // compile-command: "scons -u test"
 344 // End: