Socket/Protocols/INet/MulticastProtocol.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 MulticastProtocol non-inline non-template implementation */
  25
  26 #include "MulticastProtocol.hh"
  27 //#include "MulticastProtocol.ih"
  28
  29 // Custom includes
  30 #include <sys/socket.h>
  31 #include <netinet/in.h>
  32 #include <net/if.h> // for if_nametoindex
  33
  34 //#include "MulticastProtocol.mpp"
  35 #define prefix_
  36 ///////////////////////////////cc.p////////////////////////////////////////
  37
  38 ///////////////////////////////////////////////////////////////////////////
  39 // senf::MulticastProtocol
  40
  41 prefix_ void senf::MulticastProtocol::broadcastEnabled(bool v)
  42 {
  43     int ivalue (v);
  44     if (::setsockopt(fd(), SOL_SOCKET, SO_BROADCAST, &ivalue, sizeof(ivalue)) < 0)
  45         throwErrno("::setsockopt(SO_BROADCAST)");
  46 }
  47
  48 prefix_ bool senf::MulticastProtocol::broadcastEnabled()
  49 {
  50     int value (0);
  51     ::socklen_t len (sizeof(value));
  52     if (::getsockopt(fd(), SOL_SOCKET, SO_BROADCAST, &value, &len) < 0)
  53         throwErrno("::getsockopt(SO_BROADCAST)");
  54     return value;
  55 }
  56
  57 prefix_ bool senf::MulticastProtocol::mcLoop()
  58     const
  59 {
  60     int value;
  61     socklen_t len (sizeof(value));
  62     if (::getsockopt(fd(),SOL_IP,IP_MULTICAST_LOOP,&value,&len) < 0)
  63         throwErrno();
  64     return value;
  65 }
  66
  67 prefix_ void senf::MulticastProtocol::mcLoop(bool value)
  68     const
  69 {
  70     int ivalue (value);
  71     if (::setsockopt(fd(),SOL_IP,IP_MULTICAST_LOOP,&ivalue,sizeof(ivalue)) < 0)
  72         throwErrno();
  73 }
  74
  75 prefix_ void senf::MulticastProtocol::mcIface(std::string const & iface)
  76     const
  77 {
  78     struct ip_mreqn mreqn;
  79     ::memset(&mreqn,sizeof(mreqn),0);
  80     if (!iface.empty()) {
  81         mreqn.imr_ifindex = if_nametoindex(iface.c_str());
  82         if (mreqn.imr_ifindex == 0)
  83             throwErrno(EINVAL);
  84     }
  85     if (::setsockopt(fd(),SOL_IP,IP_MULTICAST_IF,&mreqn,sizeof(mreqn)) < 0)
  86         throwErrno();
  87 }
  88
  89 prefix_ unsigned senf::MulticastProtocol::mcTTL()
  90     const
  91 {
  92     int value;
  93     socklen_t len (sizeof(value));
  94     if (::getsockopt(fd(),SOL_IP,IP_MULTICAST_TTL,&value,&len) < 0)
  95         throwErrno();
  96     return value;
  97 }
  98
  99 prefix_ void senf::MulticastProtocol::mcTTL(unsigned value)
 100     const
 101 {
 102     if (::setsockopt(fd(),SOL_IP,IP_MULTICAST_TTL,&value,sizeof(value)) < 0)
 103         throwErrno();
 104 }
 105
 106 ///////////////////////////////////////////////////////////////////////////
 107 // senf::INet4MulticastProtocol
 108
 109 prefix_ void senf::INet4MulticastProtocol::mcAddMembership(INet4Address const & mcAddr)
 110     const
 111 {
 112     struct ip_mreqn mreqn;
 113     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 114     mreqn.imr_address.s_addr = htons(INADDR_ANY);
 115     mreqn.imr_ifindex = 0;
 116     if (::setsockopt(fd(),SOL_IP,IP_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 117         throwErrno("::setsockopt(IP_ADD_MEMBERSHIP");
 118 }
 119
 120 prefix_ void senf::INet4MulticastProtocol::mcAddMembership(INet4Address const & mcAddr,
 121                                                            INet4Address const & localAddr)
 122     const
 123 {
 124     struct ip_mreqn mreqn;
 125     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 126     mreqn.imr_address.s_addr = localAddr.inaddr();
 127     mreqn.imr_ifindex = 0;
 128     if (::setsockopt(fd(),SOL_IP,IP_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 129         throwErrno("::setsockopt(IP_ADD_MEMBERSHIP");
 130 }
 131
 132 prefix_ void senf::INet4MulticastProtocol::mcAddMembership(INet4Address const & mcAddr,
 133                                                            std::string const & iface)
 134     const
 135 {
 136     struct ip_mreqn mreqn;
 137     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 138     mreqn.imr_address.s_addr = htons(INADDR_ANY);
 139     mreqn.imr_ifindex = if_nametoindex(iface.c_str());
 140     if (mreqn.imr_ifindex == 0)
 141         throwErrno("::if_nametoindex()",ENOENT);
 142     if (::setsockopt(fd(),SOL_IP,IP_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 143         throwErrno("::setsockopt(IP_ADD_MEMBERSHIP");
 144 }
 145
 146 prefix_ void senf::INet4MulticastProtocol::mcDropMembership(INet4Address const & mcAddr)
 147     const
 148 {
 149     struct ip_mreqn mreqn;
 150     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 151     mreqn.imr_address.s_addr = htons(INADDR_ANY);
 152     mreqn.imr_ifindex = 0;
 153     if (::setsockopt(fd(),SOL_IP,IP_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 154         throwErrno();
 155 }
 156
 157 prefix_ void senf::INet4MulticastProtocol::mcDropMembership(INet4Address const & mcAddr,
 158                                                             INet4Address const & localAddr)
 159     const
 160 {
 161     struct ip_mreqn mreqn;
 162     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 163     mreqn.imr_address.s_addr = localAddr.inaddr();
 164     mreqn.imr_ifindex = 0;
 165     if (::setsockopt(fd(),SOL_IP,IP_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 166         throwErrno();
 167 }
 168
 169 prefix_ void senf::INet4MulticastProtocol::mcDropMembership(INet4Address const & mcAddr,
 170                                                             std::string const & iface)
 171     const
 172 {
 173     struct ip_mreqn mreqn;
 174     mreqn.imr_multiaddr.s_addr = mcAddr.inaddr();
 175     mreqn.imr_address.s_addr = htons(INADDR_ANY);
 176     mreqn.imr_ifindex = if_nametoindex(iface.c_str());
 177     if (mreqn.imr_ifindex == 0)
 178         throwErrno("::if_nametoindex()",ENOENT);
 179     if (::setsockopt(fd(),SOL_IP,IP_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 180         throwErrno();
 181 }
 182
 183 ///////////////////////////////////////////////////////////////////////////
 184 // senf::INet6MulticastProtocol
 185
 186 prefix_ void senf::INet6MulticastProtocol::mcAddMembership(INet6Address const & mcAddr)
 187     const
 188 {
 189     struct ipv6_mreq mreqn;
 190     std::copy(mcAddr.begin(), mcAddr.end(), mreqn.ipv6mr_multiaddr.s6_addr);
 191     mreqn.ipv6mr_interface = 0;
 192     if (::setsockopt(fd(),SOL_IP,IPV6_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 193         throwErrno("::setsockopt(IPV6_ADD_MEMBERSHIP");
 194 }
 195
 196 prefix_ void senf::INet6MulticastProtocol::mcAddMembership(INet6Address const & mcAddr,
 197                                                            std::string const & iface)
 198 {
 199     struct ipv6_mreq mreqn;
 200     std::copy(mcAddr.begin(), mcAddr.end(), mreqn.ipv6mr_multiaddr.s6_addr);
 201     mreqn.ipv6mr_interface = if_nametoindex(iface.c_str());
 202     if (mreqn.ipv6mr_interface == 0)
 203         throwErrno("::if_nametoindex()",ENOENT);
 204     if (::setsockopt(fd(),SOL_IP,IPV6_ADD_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 205         throwErrno("::setsockopt(IPV6_ADD_MEMBERSHIP");
 206 }
 207
 208 prefix_ void senf::INet6MulticastProtocol::mcDropMembership(INet6Address const & mcAddr)
 209     const
 210 {
 211     struct ipv6_mreq mreqn;
 212     std::copy(mcAddr.begin(), mcAddr.end(), mreqn.ipv6mr_multiaddr.s6_addr);
 213     mreqn.ipv6mr_interface = 0;
 214     if (::setsockopt(fd(),SOL_IP,IPV6_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 215         throwErrno();
 216 }
 217
 218 prefix_ void
 219 senf::INet6MulticastProtocol::mcDropMembership(INet6Address const & mcAddr,
 220                                                std::string const & iface)
 221     const
 222 {
 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         throwErrno("::if_nametoindex()",ENOENT);
 228     if (::setsockopt(fd(),SOL_IP,IPV6_DROP_MEMBERSHIP,&mreqn,sizeof(mreqn)) < 0)
 229         throwErrno();
 230 }
 231
 232 ///////////////////////////////cc.e////////////////////////////////////////
 233 #undef prefix_
 234 //#include "MulticastProtocol.mpp"
 235
 236 \f
 237 // Local Variables:
 238 // mode: c++
 239 // fill-column: 100
 240 // comment-column: 40
 241 // c-file-style: "senf"
 242 // indent-tabs-mode: nil
 243 // ispell-local-dictionary: "american"
 244 // compile-command: "scons -u test"
 245 // End: