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Annotation of embedaddon/pimd/igmpv3.h, revision 1.1.1.1

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:  */