Annotation of sys/netinet/pim.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pim.h,v 1.2 2006/04/27 02:19:32 tedu Exp $ */
! 2: /* $NetBSD: pim.h,v 1.1 2004/09/04 23:32:29 manu Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1996-2000
! 6: * University of Southern California/Information Sciences Institute.
! 7: * All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice, this list of conditions and the following disclaimer.
! 14: * 2. Redistributions in binary form must reproduce the above copyright
! 15: * notice, this list of conditions and the following disclaimer in the
! 16: * documentation and/or other materials provided with the distribution.
! 17: * 3. Neither the name of the project nor the names of its contributors
! 18: * may be used to endorse or promote products derived from this software
! 19: * without specific prior written permission.
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
! 22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
! 25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 31: * SUCH DAMAGE.
! 32: *
! 33: * $FreeBSD: /repoman/r/ncvs/src/sys/netinet/pim.h,v 1.2 2004/03/08 07:45:32 hsu Exp $
! 34: */
! 35:
! 36: #ifndef _NETINET_PIM_H_
! 37: #define _NETINET_PIM_H_
! 38:
! 39: /*
! 40: * Protocol Independent Multicast (PIM) definitions.
! 41: * RFC 2362, June 1998.
! 42: *
! 43: * Written by Ahmed Helmy, USC/SGI, July 1996.
! 44: * Modified by George Edmond Eddy (Rusty), ISI, February 1998.
! 45: * Modified by Pavlin Radoslavov, USC/ISI, May 1998, October 2000.
! 46: */
! 47:
! 48: #include <sys/types.h>
! 49:
! 50: #ifndef _PIM_VT
! 51: #ifndef _BYTE_ORDER
! 52: # error _BYTE_ORDER is not defined!
! 53: #endif
! 54: #if (_BYTE_ORDER != _BIG_ENDIAN) && (_BYTE_ORDER != _LITTLE_ENDIAN)
! 55: # error _BYTE_ORDER must be defined to either _BIG_ENDIAN or _LITTLE_ENDIAN
! 56: #endif
! 57: #endif /* ! _PIM_VT */
! 58:
! 59: /*
! 60: * PIM packet header
! 61: */
! 62: struct pim {
! 63: #ifdef _PIM_VT
! 64: uint8_t pim_vt; /* PIM version and message type */
! 65: #else /* ! _PIM_VT */
! 66: #if _BYTE_ORDER == _BIG_ENDIAN
! 67: u_int pim_vers:4, /* PIM protocol version */
! 68: pim_type:4; /* PIM message type */
! 69: #endif
! 70: #if _BYTE_ORDER == _LITTLE_ENDIAN
! 71: u_int pim_type:4, /* PIM message type */
! 72: pim_vers:4; /* PIM protocol version */
! 73: #endif
! 74: #endif /* ! _PIM_VT */
! 75: uint8_t pim_reserved; /* Reserved */
! 76: uint16_t pim_cksum; /* IP-style checksum */
! 77: };
! 78: /* KAME-related name backward compatibility */
! 79: #define pim_ver pim_vers
! 80: #define pim_rsv pim_reserved
! 81:
! 82: #ifdef _PIM_VT
! 83: #define PIM_MAKE_VT(v, t) (0xff & (((v) << 4) | (0x0f & (t))))
! 84: #define PIM_VT_V(x) (((x) >> 4) & 0x0f)
! 85: #define PIM_VT_T(x) ((x) & 0x0f)
! 86: #endif /* _PIM_VT */
! 87:
! 88: #define PIM_VERSION 2
! 89: #define PIM_MINLEN 8 /* PIM message min. length */
! 90: #define PIM_REG_MINLEN (PIM_MINLEN+20) /* PIM Register hdr + inner IPv4 hdr */
! 91: #define PIM6_REG_MINLEN (PIM_MINLEN+40) /* PIM Register hdr + inner IPv6 hdr */
! 92:
! 93: /*
! 94: * PIM message types
! 95: */
! 96: #define PIM_HELLO 0x0 /* PIM-SM and PIM-DM */
! 97: #define PIM_REGISTER 0x1 /* PIM-SM only */
! 98: #define PIM_REGISTER_STOP 0x2 /* PIM-SM only */
! 99: #define PIM_JOIN_PRUNE 0x3 /* PIM-SM and PIM-DM */
! 100: #define PIM_BOOTSTRAP 0x4 /* PIM-SM only */
! 101: #define PIM_ASSERT 0x5 /* PIM-SM and PIM-DM */
! 102: #define PIM_GRAFT 0x6 /* PIM-DM only */
! 103: #define PIM_GRAFT_ACK 0x7 /* PIM-DM only */
! 104: #define PIM_CAND_RP_ADV 0x8 /* PIM-SM only */
! 105: #define PIM_ALL_DF_ELECTION 0xa /* Bidir-PIM-SM only */
! 106:
! 107: /*
! 108: * PIM-Register message flags
! 109: */
! 110: #define PIM_BORDER_REGISTER 0x80000000U /* The Border bit (host-order) */
! 111: #define PIM_NULL_REGISTER 0x40000000U /* The Null-Register bit (host-order)*/
! 112:
! 113: /*
! 114: * All-PIM-Routers IPv4 and IPv6 multicast addresses
! 115: */
! 116: #define INADDR_ALLPIM_ROUTERS_GROUP (uint32_t)0xe000000dU /* 224.0.0.13 */
! 117: #define IN6ADDR_LINKLOCAL_ALLPIM_ROUTERS "ff02::d"
! 118: #define IN6ADDR_LINKLOCAL_ALLPIM_ROUTERS_INIT \
! 119: {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
! 120: 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d }}}
! 121:
! 122: #endif /* _NETINET_PIM_H_ */
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