/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1996-2000 * University of Southern California/Information Sciences Institute. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _NETINET_PIM_H_ #define _NETINET_PIM_H_ /* * Protocol Independent Multicast (PIM) definitions. * RFC 2362, June 1998. * * Written by Ahmed Helmy, USC/SGI, July 1996. * Modified by George Edmond Eddy (Rusty), ISI, February 1998. * Modified by Pavlin Radoslavov, USC/ISI, May 1998, October 2000. */ #include #ifndef _PIM_VT #ifndef BYTE_ORDER # error BYTE_ORDER is not defined! #endif #if (BYTE_ORDER != BIG_ENDIAN) && (BYTE_ORDER != LITTLE_ENDIAN) # error BYTE_ORDER must be defined to either BIG_ENDIAN or LITTLE_ENDIAN #endif #endif /* ! _PIM_VT */ /* * PIM packet header */ struct pim { #ifdef _PIM_VT uint8_t pim_vt; /* PIM version and message type */ #else /* ! _PIM_VT */ #if BYTE_ORDER == BIG_ENDIAN u_int pim_vers:4, /* PIM protocol version */ pim_type:4; /* PIM message type */ #endif #if BYTE_ORDER == LITTLE_ENDIAN u_int pim_type:4, /* PIM message type */ pim_vers:4; /* PIM protocol version */ #endif #endif /* ! _PIM_VT */ uint8_t pim_reserved; /* Reserved */ uint16_t pim_cksum; /* IP-style checksum */ }; /* KAME-related name backward compatibility */ #define pim_ver pim_vers #define pim_rsv pim_reserved #ifdef _PIM_VT #define PIM_MAKE_VT(v, t) (0xff & (((v) << 4) | (0x0f & (t)))) #define PIM_VT_V(x) (((x) >> 4) & 0x0f) #define PIM_VT_T(x) ((x) & 0x0f) #endif /* _PIM_VT */ #define PIM_VERSION 2 #define PIM_MINLEN 8 /* PIM message min. length */ #define PIM_REG_MINLEN (PIM_MINLEN+20) /* PIM Register hdr + inner IPv4 hdr */ #define PIM6_REG_MINLEN (PIM_MINLEN+40) /* PIM Register hdr + inner IPv6 hdr */ /* * PIM message types */ #define PIM_HELLO 0x0 /* PIM-SM and PIM-DM */ #define PIM_REGISTER 0x1 /* PIM-SM only */ #define PIM_REGISTER_STOP 0x2 /* PIM-SM only */ #define PIM_JOIN_PRUNE 0x3 /* PIM-SM and PIM-DM */ #define PIM_BOOTSTRAP 0x4 /* PIM-SM only */ #define PIM_ASSERT 0x5 /* PIM-SM and PIM-DM */ #define PIM_GRAFT 0x6 /* PIM-DM only */ #define PIM_GRAFT_ACK 0x7 /* PIM-DM only */ #define PIM_CAND_RP_ADV 0x8 /* PIM-SM only */ #define PIM_ALL_DF_ELECTION 0xa /* Bidir-PIM-SM only */ /* * PIM-Register message flags */ #define PIM_BORDER_REGISTER 0x80000000U /* The Border bit (host-order) */ #define PIM_NULL_REGISTER 0x40000000U /* The Null-Register bit (host-order)*/ /* * All-PIM-Routers IPv4 and IPv6 multicast addresses */ #define INADDR_ALLPIM_ROUTERS_GROUP (uint32_t)0xe000000dU /* 224.0.0.13 */ #define IN6ADDR_LINKLOCAL_ALLPIM_ROUTERS "ff02::d" #define IN6ADDR_LINKLOCAL_ALLPIM_ROUTERS_INIT \ {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d }}} #endif /* _NETINET_PIM_H_ */