Msg File src/inet/networklayer/ipv4/IGMPMessage.msg

Name	Type	Description
IGMPType	enum	(no description)
IGMPMessage	packet	(no description)
IGMPQuery	packet	(no description)
IGMPv1Query	packet	(no description)
IGMPv1Report	packet	(no description)
IGMPv2Query	packet	(no description)
IGMPv2Report	packet	(no description)
IGMPv2Leave	packet	(no description)
IGMPv3Query	packet	IGMPv3Query extends IGMPv2Query, because IGMPv2 routers must accept IGMPv3Query packets.
GroupRecordType	enum	(no description)
GroupRecord	struct	(no description)
IGMPv3Report	packet	(no description)

Source code

//
// Copyright (C) 2011 CoCo Communications
// Copyright (C) 2012 Opensim Ltd
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program; if not, see <http://www.gnu.org/licenses/>.
//

import inet.networklayer.contract.ipv4.IPv4Address;

namespace inet;

enum IGMPType
{
    IGMP_MEMBERSHIP_QUERY = 0x11;
    IGMPV1_MEMBERSHIP_REPORT = 0x12;
    IGMPV2_MEMBERSHIP_REPORT = 0x16;
    IGMPV2_LEAVE_GROUP = 0x17;
    IGMPV3_MEMBERSHIP_REPORT = 0x22;
}

packet IGMPMessage
{
    int type @enum(IGMPType);
}

packet IGMPQuery extends IGMPMessage
{
    IPv4Address groupAddress;
}

packet IGMPv1Query extends IGMPQuery
{
    type = IGMP_MEMBERSHIP_QUERY;
}

packet IGMPv1Report extends IGMPMessage
{
    type = IGMPV1_MEMBERSHIP_REPORT;
    IPv4Address groupAddress;
}

packet IGMPv2Query extends IGMPQuery
{
    type = IGMP_MEMBERSHIP_QUERY;
    unsigned char maxRespTime;
}

packet IGMPv2Report extends IGMPMessage
{
    type = IGMPV2_MEMBERSHIP_REPORT;
    IPv4Address groupAddress;
}

packet IGMPv2Leave extends IGMPMessage
{
    type = IGMPV2_LEAVE_GROUP;
    IPv4Address groupAddress;
}

//
// IGMPv3Query extends IGMPv2Query, because
// IGMPv2 routers must accept IGMPv3Query packets.
//
// Note: in IGMPv3Query the maxResponseTime field is
// renamed to maxResponseCode and it is interpreted
// differently than in IGMPv2.
packet IGMPv3Query extends IGMPv2Query
{
    @customize(true);
    bool suppressRouterProc;
    unsigned char robustnessVariable;
    unsigned char queryIntervalCode;
    IPv4AddressVector sourceList;
    abstract unsigned char maxRespCode;
}

enum GroupRecordType
{
    MODE_IS_INCLUDE = 1;
    MODE_IS_EXCLUDE = 2;
    CHANGE_TO_INCLUDE_MODE = 3;
    CHANGE_TO_EXCLUDE_MODE = 4;
    ALLOW_NEW_SOURCES = 5;
    BLOCK_OLD_SOURCE = 6;
}

struct GroupRecord
{
    int recordType enum(GroupRecordType);
    IPv4Address groupAddress;
    IPv4AddressVector sourceList;
};

packet IGMPv3Report extends IGMPMessage
{
    type = IGMPV3_MEMBERSHIP_REPORT;
    GroupRecord groupRecord[];
}