Socket/Protocols/INet/MulticastSocketProtocol.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 //
   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 MulticastSocketProtocol non-inline non-template implementation */
  25
  26 #include "MulticastSocketProtocol.hh"
  27 //#include "MulticastSocketProtocol.ih"
  28
  29 // Custom includes
  30 #include <sys/socket.h>
  31 #include <netinet/in.h>
  32 #include <net/if.h> // for if_nametoindex
  33 #include "../../../Utils/Exception.hh"
  34
  35 //#include "MulticastSocketProtocol.mpp"
  36 #define prefix_
  37 ///////////////////////////////cc.p////////////////////////////////////////
  38
  39 ///////////////////////////////////////////////////////////////////////////
  40 // senf::MulticastSocketProtocol
  41
  42 prefix_ void senf::MulticastSocketProtocol::broadcastEnabled(bool v)
  43     const
  44 {
  45     int ivalue (v);
  46     if (::setsockopt(fd(), SOL_SOCKET, SO_BROADCAST, &ivalue, sizeof(ivalue)) < 0)
  47         SENF_THROW_SYSTEM_EXCEPTION("::setsockopt(SO_BROADCAST)");
  48 }
  49
  50 prefix_ bool senf::MulticastSocketProtocol::broadcastEnabled()
  51     const
  52 {
  53     int value (0);
  54     ::socklen_t len (sizeof(value));
  55     if (::getsockopt(fd(), SOL_SOCKET, SO_BROADCAST, &value, &len) < 0)
  56         SENF_THROW_SYSTEM_EXCEPTION("::getsockopt(SO_BROADCAST)");
  57     return value;
  58 }
  59
  60 prefix_ bool senf::MulticastSocketProtocol::mcLoop()
  61     const
  62 {
  63     int value (0);
  64     socklen_t len (sizeof(value));
  65     if (::getsockopt(fd(),SOL_IP,IP_MULTICAST_LOOP,&value,&len) < 0)
  66         SENF_THROW_SYSTEM_EXCEPTION("");
  67     return value;
  68 }
  69
  70 prefix_ void senf::MulticastSocketProtocol::mcLoop(bool value)
  71     const
  72 {
  73     int ivalue (value);
  74     if (::setsockopt(fd(),SOL_IP,IP_MULTICAST_LOOP,&ivalue,sizeof(ivalue)) < 0)
  75         SENF_THROW_SYSTEM_EXCEPTION("");
  76 }
  77
  78 prefix_ void senf::MulticastSocketProtocol::mcIface(std::string const & iface)
  79     const
  80 {
  81     struct ip_mreqn mreqn;
  82     ::memset(&mreqn,sizeof(mreqn),0);
  83     if (!iface.empty()) {
  84         mreqn.imr_ifindex = if_nametoindex(iface.c_str());
  85         if (mreqn.imr_ifindex == 0)
  86             throw SystemException(EINVAL SENF_EXC_DEBUGINFO);
  87     }
  88     if (::setsockopt(fd(),SOL_IP,IP_MULTICAST_IF,&mreqn,sizeof(mreqn)) < 0)
  89         SENF_THROW_SYSTEM_EXCEPTION("");
  90 }
  91
  92 prefix_ unsigned senf::MulticastSocketProtocol::mcTTL()
  93     const
  94 {
  95     int value (0);
  96     socklen_t len (sizeof(value));
  97     if (::getsockopt(fd(),SOL_IP,IP_MULTICAST_TTL,&value,&len) < 0)
  98         SENF_THROW_SYSTEM_EXCEPTION("");
  99     return value;
 100 }
 101
 102 prefix_ void senf::MulticastSocketProtocol::mcTTL(unsigned value)
 103     const
 104 {
 105     if (::setsockopt(fd(),SOL_IP,IP_MULTICAST_TTL,&value,sizeof(value)) < 0)
 106         SENF_THROW_SYSTEM_EXCEPTION("");
 107 }
 108
 109 ///////////////////////////////////////////////////////////////////////////
 110 // senf::INet4MulticastSocketProtocol
 111
 112 prefix_ void senf::INet4MulticastSocketProtocol::mcAddMembership(INet4Address const & mcAddr)
 113     const
 114 {
 115     struct ip_mreqn mreqn;
 116     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 117     mreqn.imr_address.s_addr = htons(INADDR_ANY);
 118     mreqn.imr_ifindex = 0;
 119     if (::setsockopt(fd(),SOL_IP,IP_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 120         SENF_THROW_SYSTEM_EXCEPTION("::setsockopt(IP_ADD_MEMBERSHIP)");
 121 }
 122
 123 prefix_ void senf::INet4MulticastSocketProtocol::mcAddMembership(INet4Address const & mcAddr,
 124                                                                  INet4Address const & localAddr)
 125     const
 126 {
 127     struct ip_mreqn mreqn;
 128     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 129     mreqn.imr_address.s_addr = localAddr.inaddr();
 130     mreqn.imr_ifindex = 0;
 131     if (::setsockopt(fd(),SOL_IP,IP_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 132         SENF_THROW_SYSTEM_EXCEPTION("::setsockopt(IP_ADD_MEMBERSHIP");
 133 }
 134
 135 prefix_ void senf::INet4MulticastSocketProtocol::mcAddMembership(INet4Address const & mcAddr,
 136                                                                  std::string const & iface)
 137     const
 138 {
 139     struct ip_mreqn mreqn;
 140     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 141     mreqn.imr_address.s_addr = htons(INADDR_ANY);
 142     mreqn.imr_ifindex = if_nametoindex(iface.c_str());
 143     if (mreqn.imr_ifindex == 0)
 144         throw SystemException("::if_nametoindex()",ENOENT SENF_EXC_DEBUGINFO);
 145     if (::setsockopt(fd(),SOL_IP,IP_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 146         SENF_THROW_SYSTEM_EXCEPTION("::setsockopt(IP_ADD_MEMBERSHIP");
 147 }
 148
 149 prefix_ void senf::INet4MulticastSocketProtocol::mcDropMembership(INet4Address const & mcAddr)
 150     const
 151 {
 152     struct ip_mreqn mreqn;
 153     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 154     mreqn.imr_address.s_addr = htons(INADDR_ANY);
 155     mreqn.imr_ifindex = 0;
 156     if (::setsockopt(fd(),SOL_IP,IP_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 157         SENF_THROW_SYSTEM_EXCEPTION("");
 158 }
 159
 160 prefix_ void senf::INet4MulticastSocketProtocol::mcDropMembership(INet4Address const & mcAddr,
 161                                                                   INet4Address const & localAddr)
 162     const
 163 {
 164     struct ip_mreqn mreqn;
 165     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 166     mreqn.imr_address.s_addr = localAddr.inaddr();
 167     mreqn.imr_ifindex = 0;
 168     if (::setsockopt(fd(),SOL_IP,IP_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 169         SENF_THROW_SYSTEM_EXCEPTION("");
 170 }
 171
 172 prefix_ void senf::INet4MulticastSocketProtocol::mcDropMembership(INet4Address const & mcAddr,
 173                                                                   std::string const & iface)
 174     const
 175 {
 176     struct ip_mreqn mreqn;
 177     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 178     mreqn.imr_address.s_addr = htons(INADDR_ANY);
 179     mreqn.imr_ifindex = if_nametoindex(iface.c_str());
 180     if (mreqn.imr_ifindex == 0)
 181         throw SystemException("::if_nametoindex()",ENOENT SENF_EXC_DEBUGINFO);
 182     if (::setsockopt(fd(),SOL_IP,IP_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 183         SENF_THROW_SYSTEM_EXCEPTION("");
 184 }
 185
 186 ///////////////////////////////////////////////////////////////////////////
 187 // senf::INet6MulticastSocketProtocol
 188
 189 prefix_ void senf::INet6MulticastSocketProtocol::mcAddMembership(INet6Address const & mcAddr)
 190     const
 191 {
 192     if (mcAddr.inet4Mapped()) {
 193         struct ip_mreqn mreqn;
 194         mreqn.imr_multiaddr.s_addr = mcAddr.inet4address().inaddr();
 195         mreqn.imr_address.s_addr = htons(INADDR_ANY);
 196         mreqn.imr_ifindex = 0;
 197         if (::setsockopt(fd(),SOL_IP,IP_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 198             SENF_THROW_SYSTEM_EXCEPTION("::setsockopt(IP_ADD_MEMBERSHIP)");
 199     }
 200     else {
 201         struct ipv6_mreq mreqn;
 202         std::copy(mcAddr.begin(), mcAddr.end(), mreqn.ipv6mr_multiaddr.s6_addr);
 203         mreqn.ipv6mr_interface = 0;
 204         if (::setsockopt(fd(),SOL_IPV6,IPV6_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 205             SENF_THROW_SYSTEM_EXCEPTION("::setsockopt(IPV6_ADD_MEMBERSHIP");
 206     }
 207 }
 208
 209 prefix_ void senf::INet6MulticastSocketProtocol::mcAddMembership(INet6Address const & mcAddr,
 210                                                                  std::string const & iface)
 211 {
 212     if (mcAddr.inet4Mapped()) {
 213         struct ip_mreqn mreqn;
 214         mreqn.imr_multiaddr.s_addr = mcAddr.inet4address().inaddr();
 215         mreqn.imr_address.s_addr = htons(INADDR_ANY);
 216         mreqn.imr_ifindex = if_nametoindex(iface.c_str());
 217         if (mreqn.imr_ifindex == 0)
 218             throw SystemException("::if_nametoindex()",ENOENT SENF_EXC_DEBUGINFO);
 219         if (::setsockopt(fd(),SOL_IP,IP_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 220             SENF_THROW_SYSTEM_EXCEPTION("::setsockopt(IP_ADD_MEMBERSHIP");
 221     }
 222     else {
 223         struct ipv6_mreq mreqn;
 224         std::copy(mcAddr.begin(), mcAddr.end(), mreqn.ipv6mr_multiaddr.s6_addr);
 225         mreqn.ipv6mr_interface = if_nametoindex(iface.c_str());
 226         if (mreqn.ipv6mr_interface == 0)
 227             throw SystemException("::if_nametoindex()",ENOENT SENF_EXC_DEBUGINFO);
 228         if (::setsockopt(fd(),SOL_IPV6,IPV6_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 229             SENF_THROW_SYSTEM_EXCEPTION("::setsockopt(IPV6_ADD_MEMBERSHIP");
 230     }
 231 }
 232
 233 prefix_ void senf::INet6MulticastSocketProtocol::mcDropMembership(INet6Address const & mcAddr)
 234     const
 235 {
 236     if (mcAddr.inet4Mapped()) {
 237         struct ip_mreqn mreqn;
 238         mreqn.imr_multiaddr.s_addr = mcAddr.inet4address().inaddr();
 239         mreqn.imr_address.s_addr = htons(INADDR_ANY);
 240         mreqn.imr_ifindex = 0;
 241         if (::setsockopt(fd(),SOL_IP,IP_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 242             SENF_THROW_SYSTEM_EXCEPTION("");
 243     }
 244     else {
 245         struct ipv6_mreq mreqn;
 246         std::copy(mcAddr.begin(), mcAddr.end(), mreqn.ipv6mr_multiaddr.s6_addr);
 247         mreqn.ipv6mr_interface = 0;
 248         if (::setsockopt(fd(),SOL_IPV6,IPV6_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 249             SENF_THROW_SYSTEM_EXCEPTION("");
 250     }
 251 }
 252
 253 prefix_ void
 254 senf::INet6MulticastSocketProtocol::mcDropMembership(INet6Address const & mcAddr,
 255                                                      std::string const & iface)
 256     const
 257 {
 258     if (mcAddr.inet4Mapped()) {
 259         struct ip_mreqn mreqn;
 260         mreqn.imr_multiaddr.s_addr = mcAddr.inet4address().inaddr();
 261         mreqn.imr_address.s_addr = htons(INADDR_ANY);
 262         mreqn.imr_ifindex = if_nametoindex(iface.c_str());
 263         if (mreqn.imr_ifindex == 0)
 264             throw SystemException("::if_nametoindex()",ENOENT SENF_EXC_DEBUGINFO);
 265         if (::setsockopt(fd(),SOL_IP,IP_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 266             SENF_THROW_SYSTEM_EXCEPTION("");
 267     }
 268     else {
 269         struct ipv6_mreq mreqn;
 270         std::copy(mcAddr.begin(), mcAddr.end(), mreqn.ipv6mr_multiaddr.s6_addr);
 271         mreqn.ipv6mr_interface = if_nametoindex(iface.c_str());
 272         if (mreqn.ipv6mr_interface == 0)
 273             throw SystemException("::if_nametoindex()",ENOENT SENF_EXC_DEBUGINFO);
 274         if (::setsockopt(fd(),SOL_IPV6,IPV6_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 275             SENF_THROW_SYSTEM_EXCEPTION("");
 276     }
 277 }
 278
 279 ///////////////////////////////cc.e////////////////////////////////////////
 280 #undef prefix_
 281 //#include "MulticastSocketProtocol.mpp"
 282
 283 \f
 284 // Local Variables:
 285 // mode: c++
 286 // fill-column: 100
 287 // comment-column: 40
 288 // c-file-style: "senf"
 289 // indent-tabs-mode: nil
 290 // ispell-local-dictionary: "american"
 291 // compile-command: "scons -u test"
 292 // End: