mcproxy/mcproxy/include/proxy/igmp_receiver.hpp

00001 /*
00002  * This file is part of mcproxy.
00003  *
00004  * mcproxy is free software; you can redistribute it and/or modify
00005  * it under the terms of the GNU Lesser General Public License as published by
00006  * the Free Software Foundation; either version 3 of the License, or (at your
00007  * option) any later version.
00008  *
00009  * mcproxy is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
00011  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00012  * License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public License
00015  * along with mcproxy; see the file COPYING.LESSER.
00016  *
00017  * written by Sebastian Woelke, in cooperation with:
00018  * INET group, Hamburg University of Applied Sciences,
00019  * Website: http://mcproxy.realmv6.org/
00020  */
00021
00027 #ifndef IGMP_RECEIVER_HPP
00028 #define IGMP_RECEIVER_HPP
00029 
00030 #include "include/proxy/receiver.hpp"
00031
00035 #define IGMP_RECEIVER_IPV4_ROUTER_ALERT_OPT_SIZE 4  //RFC 2711
00036 
00040 #define IGMP_RECEIVER_KERNEL_MSG 0
00041 
00045 class igmp_receiver : public receiver {
00046 private:
00047
00048      int get_ctrl_min_size();
00049      int get_iov_min_size();
00050      void analyse_packet(struct msghdr* msg, int info_size);
00051
00052      //return the interface index to addr, on error return 0
00053      int map_ip2if_index(const addr_storage& src_addr);
00054 public:
00058     igmp_receiver();
00059 };
00060
00061 #endif // IGMP_RECEIVER_HPP
00062