mcproxy/mcproxy/include/proxy/mld_sender.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 MLD_SENDER_HPP
00028 #define MLD_SENDER_HPP
00029 
00030 #include "include/proxy/sender.hpp"
00031
00035 #define MC_MASSAGES_AUTO_FILL 0
00036 
00040 #define MC_MASSAGES_IPV6_ROUTER_ALERT_OPT_SIZE 0  //RFC 2711
00041 
00045 typedef u_int16_t pad2 ; //padding
00046
00050 class mld_sender: public sender{
00051 private:
00052      enum msg_type { //for intern type handling
00053           GENERAL_QUERY, MC_ADDR_SPECIFIC_QUERY
00054      };
00055
00056      bool choose_if(int if_index);
00057      int get_msg_min_size();
00058      bool add_hbh_opt_header();
00059      bool create_mc_query(msg_type type, unsigned char* buf,const addr_storage* g_addr=NULL);
00060
00061 public:
00065      mld_sender();
00066
00067      bool init(int addr_family, int version);
00068
00069      bool send_general_query(int if_index);
00070      bool send_group_specific_query(int if_index, const addr_storage& g_addr);
00071      bool send_report(int if_index, const addr_storage& g_addr);
00072      bool send_leave(int if_index, const addr_storage& g_addr);
00073 };
00074
00075 #endif // MLD_SENDER_HPP
00076