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Annotation of embedaddon/pimd/igmpv3.h, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (c) 1998-2001
        !             3:  * University of Southern California/Information Sciences Institute.
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions
        !             8:  * are met:
        !             9:  * 1. Redistributions of source code must retain the above copyright
        !            10:  *    notice, this list of conditions and the following disclaimer.
        !            11:  * 2. Redistributions in binary form must reproduce the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer in the
        !            13:  *    documentation and/or other materials provided with the distribution.
        !            14:  * 3. Neither the name of the project nor the names of its contributors
        !            15:  *    may be used to endorse or promote products derived from this software
        !            16:  *    without specific prior written permission.
        !            17:  *
        !            18:  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
        !            19:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            20:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            21:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
        !            22:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            23:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            24:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            25:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            26:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            27:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            28:  * SUCH DAMAGE.
        !            29:  */
        !            30: 
        !            31: #ifndef __PIMD_IGMPV3_H__
        !            32: #define __PIMD_IGMPV3_H__
        !            33: 
        !            34: /*
        !            35:  * IGMPv3 report modes.
        !            36:  */
        !            37: #ifndef IGMP_MODE_IS_INCLUDE
        !            38: #define IGMP_DO_NOTHING                        0       /* don't send a record */
        !            39: #define IGMP_MODE_IS_INCLUDE           1       /* MODE_IN */
        !            40: #define IGMP_MODE_IS_EXCLUDE           2       /* MODE_EX */
        !            41: #define IGMP_CHANGE_TO_INCLUDE_MODE    3       /* TO_IN */
        !            42: #define IGMP_CHANGE_TO_EXCLUDE_MODE    4       /* TO_EX */
        !            43: #define IGMP_ALLOW_NEW_SOURCES         5       /* ALLOW_NEW */
        !            44: #define IGMP_BLOCK_OLD_SOURCES         6       /* BLOCK_OLD */
        !            45: #endif
        !            46: 
        !            47: struct igmpv3_query {
        !            48:     uint8_t  type;
        !            49:     uint8_t  code;
        !            50:     uint16_t csum;
        !            51:     uint32_t group;
        !            52: #if defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN)
        !            53:     uint8_t  qrv:3,
        !            54:              suppress:1,
        !            55:              resv:4;
        !            56: #else
        !            57:     uint8_t  resv:4,
        !            58:             suppress:1,
        !            59:             qrv:3;
        !            60: #endif
        !            61:     uint8_t  qqic;
        !            62:     uint16_t nsrcs;
        !            63:     uint32_t srcs[0];
        !            64: };
        !            65: 
        !            66: struct igmpv3_grec {
        !            67:     uint8_t  grec_type;
        !            68:     uint8_t  grec_auxwords;
        !            69:     uint16_t grec_nsrcs;
        !            70:     uint32_t grec_mca;
        !            71:     uint32_t grec_src[0];
        !            72: };
        !            73: 
        !            74: #define IGMP_GRPREC_HDRLEN             8
        !            75: #define IGMP_V3_GROUP_RECORD_MIN_SIZE  8
        !            76: 
        !            77: struct igmpv3_report {
        !            78:     uint8_t  type;
        !            79:     uint8_t  resv1;
        !            80:     uint16_t csum;
        !            81:     uint16_t resv2;
        !            82:     uint16_t ngrec;
        !            83:     struct igmpv3_grec grec[0];
        !            84: };
        !            85: 
        !            86: #ifndef IGMP_V3_REPORT_MINLEN
        !            87: #define IGMP_V3_REPORT_MINLEN          8
        !            88: #define IGMP_V3_REPORT_MAXRECS         65535
        !            89: #endif
        !            90: 
        !            91: #endif /* __PIMD_IGMPV3_H__ */
        !            92: 
        !            93: /**
        !            94:  * Local Variables:
        !            95:  *  version-control: t
        !            96:  *  indent-tabs-mode: t
        !            97:  *  c-file-style: "ellemtel"
        !            98:  *  c-basic-offset: 4
        !            99:  * End:
        !           100:  */