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/*
* Multicast Routing Daemon (MRD)
* mfa.h
*
* Copyright (C) 2004, 2005
* Universidade de Aveiro, Instituto Telecomunicacoes - Polo Aveiro
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Authors: Hugo Santos, <hsantos@av.it.pt>
*/
#ifndef _mrd_mfa_h_
#define _mrd_mfa_h_
#include <stdint.h>
#include <mrd/address.h>
#include <mrd/node.h>
class router;
class interface;
struct ip6_hdr;
class mfa_group_source {
public:
mfa_group_source();
virtual ~mfa_group_source();
enum {
any_incoming = 0,
wrong_iif,
event_count
};
enum {
f_any_incoming = 1,
f_wrong_iif = 2,
};
enum action {
no_action = 0,
notify_no_copy,
copy_metadata,
copy_full_packet
};
virtual void change_flags(uint32_t, action) = 0;
virtual void set_iif(interface *) = 0;
virtual void release_iif(interface *) = 0;
virtual void add_oif(interface *) = 0;
virtual void release_oif(interface *) = 0;
virtual void get_input_counter(uint64_t &bytes) const = 0;
virtual void get_forwarding_counter(uint64_t &bytes) const = 0;
void *instowner;
};
class mfa_group {
public:
mfa_group(router *owner);
virtual ~mfa_group() {}
router *owner() const { return m_owner; }
virtual void activate(bool) = 0;
virtual mfa_group_source *create_source_state(const in6_addr &, void * = 0) = 0;
virtual void release_source_state(mfa_group_source *) = 0;
virtual void change_default_flags(uint32_t, mfa_group_source::action) = 0;
void *instowner;
private:
router *m_owner;
};
/*!
* \brief implements the core interface with the current
* MFA (Multicast forwarding agent).
*/
class mfa_core : public node {
public:
virtual ~mfa_core() {}
virtual bool pre_startup();
virtual bool check_startup() = 0;
virtual void shutdown() = 0;
virtual void added_interface(interface *) {}
virtual void removed_interface(interface *) {}
virtual mfa_group *create_group(router *, const inet6_addr &, void * = 0) = 0;
virtual void release_group(mfa_group *) = 0;
virtual void change_group_default_flags(uint32_t, mfa_group_source::action) {}
virtual void forward(interface *, ip6_hdr *, uint16_t) const = 0;
static mfa_core *mfa();
protected:
mfa_core();
};
#endif
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