123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281 |
- /*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1998 WIDE Project.
- * 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.
- *
- * $KAME: ip6_mroute.h,v 1.19 2001/06/14 06:12:55 suz Exp $
- */
- /* BSDI ip_mroute.h,v 2.5 1996/10/11 16:01:48 pjd Exp */
- /*
- * Definitions for IP multicast forwarding.
- *
- * Written by David Waitzman, BBN Labs, August 1988.
- * Modified by Steve Deering, Stanford, February 1989.
- * Modified by Ajit Thyagarajan, PARC, August 1993.
- * Modified by Ajit Thyagarajan, PARC, August 1994.
- * Modified by Ahmed Helmy, USC, September 1996.
- *
- * MROUTING Revision: 1.2
- */
- #ifndef _NETINET6_IP6_MROUTE_H_
- #define _NETINET6_IP6_MROUTE_H_
- /*
- * Multicast Routing set/getsockopt commands.
- */
- #ifdef _KERNEL
- #define MRT6_OINIT 100 /* initialize forwarder (omrt6msg) */
- #endif
- #define MRT6_DONE 101 /* shut down forwarder */
- #define MRT6_ADD_MIF 102 /* add multicast interface */
- #define MRT6_DEL_MIF 103 /* delete multicast interface */
- #define MRT6_ADD_MFC 104 /* insert forwarding cache entry */
- #define MRT6_DEL_MFC 105 /* delete forwarding cache entry */
- #define MRT6_PIM 107 /* enable pim code */
- #define MRT6_INIT 108 /* initialize forwarder (mrt6msg) */
- #if BSD >= 199103
- #define GET_TIME(t) microtime(&t)
- #elif defined(sun)
- #define GET_TIME(t) uniqtime(&t)
- #else
- #define GET_TIME(t) ((t) = time)
- #endif
- /*
- * Types and macros for handling bitmaps with one bit per multicast interface.
- */
- typedef u_short mifi_t; /* type of a mif index */
- #define MAXMIFS 64
- #ifndef IF_SETSIZE
- #define IF_SETSIZE 256
- #endif
- typedef u_int32_t if_mask;
- #define NIFBITS (sizeof(if_mask) * NBBY) /* bits per mask */
- #ifndef howmany
- #define howmany(x, y) (((x) + ((y) - 1)) / (y))
- #endif
- typedef struct if_set {
- if_mask ifs_bits[howmany(IF_SETSIZE, NIFBITS)];
- } if_set;
- #define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
- #define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
- #define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))
- #define IF_COPY(f, t) bcopy(f, t, sizeof(*(f)))
- #define IF_ZERO(p) bzero(p, sizeof(*(p)))
- /*
- * Argument structure for MRT6_ADD_IF.
- */
- struct mif6ctl {
- mifi_t mif6c_mifi; /* the index of the mif to be added */
- u_char mif6c_flags; /* MIFF_ flags defined below */
- u_short mif6c_pifi; /* the index of the physical IF */
- };
- #define MIFF_REGISTER 0x1 /* mif represents a register end-point */
- /*
- * Argument structure for MRT6_ADD_MFC and MRT6_DEL_MFC
- */
- struct mf6cctl {
- struct sockaddr_in6 mf6cc_origin; /* IPv6 origin of mcasts */
- struct sockaddr_in6 mf6cc_mcastgrp; /* multicast group associated */
- mifi_t mf6cc_parent; /* incoming ifindex */
- struct if_set mf6cc_ifset; /* set of forwarding ifs */
- };
- /*
- * The kernel's multicast routing statistics.
- */
- struct mrt6stat {
- uint64_t mrt6s_mfc_lookups; /* # forw. cache hash table hits */
- uint64_t mrt6s_mfc_misses; /* # forw. cache hash table misses */
- uint64_t mrt6s_upcalls; /* # calls to multicast routing daemon */
- uint64_t mrt6s_no_route; /* no route for packet's origin */
- uint64_t mrt6s_bad_tunnel; /* malformed tunnel options */
- uint64_t mrt6s_cant_tunnel; /* no room for tunnel options */
- uint64_t mrt6s_wrong_if; /* arrived on wrong interface */
- uint64_t mrt6s_upq_ovflw; /* upcall Q overflow */
- uint64_t mrt6s_cache_cleanups; /* # entries with no upcalls */
- uint64_t mrt6s_drop_sel; /* pkts dropped selectively */
- uint64_t mrt6s_q_overflow; /* pkts dropped - Q overflow */
- uint64_t mrt6s_pkt2large; /* pkts dropped - size > BKT SIZE */
- uint64_t mrt6s_upq_sockfull; /* upcalls dropped - socket full */
- };
- #ifdef MRT6_OINIT
- /*
- * Struct used to communicate from kernel to multicast router
- * note the convenient similarity to an IPv6 header.
- * XXX old version, superseded by mrt6msg.
- */
- struct omrt6msg {
- u_long unused1;
- u_char im6_msgtype; /* what type of message */
- u_char im6_mbz; /* must be zero */
- u_char im6_mif; /* mif rec'd on */
- u_char unused2;
- struct in6_addr im6_src, im6_dst;
- };
- #endif
- /*
- * Structure used to communicate from kernel to multicast router.
- * We'll overlay the structure onto an MLD header (not an IPv6 header
- * like igmpmsg{} used for IPv4 implementation). This is because this
- * structure will be passed via an IPv6 raw socket, on which an application
- * will only receive the payload i.e. the data after the IPv6 header and all
- * the extension headers. (see Section 3 of RFC3542)
- */
- struct mrt6msg {
- #define MRT6MSG_NOCACHE 1
- #define MRT6MSG_WRONGMIF 2
- #define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/
- u_char im6_mbz; /* must be zero */
- u_char im6_msgtype; /* what type of message */
- u_int16_t im6_mif; /* mif rec'd on */
- u_int32_t im6_pad; /* padding for 64bit arch */
- struct in6_addr im6_src, im6_dst;
- };
- /*
- * Argument structure used by multicast routing daemon to get src-grp
- * packet counts
- */
- struct sioc_sg_req6 {
- struct sockaddr_in6 src;
- struct sockaddr_in6 grp;
- u_quad_t pktcnt;
- u_quad_t bytecnt;
- u_quad_t wrong_if;
- };
- /*
- * Argument structure used by mrouted to get mif pkt counts
- */
- struct sioc_mif_req6 {
- mifi_t mifi; /* mif number */
- u_quad_t icount; /* Input packet count on mif */
- u_quad_t ocount; /* Output packet count on mif */
- u_quad_t ibytes; /* Input byte count on mif */
- u_quad_t obytes; /* Output byte count on mif */
- };
- /*
- * Structure to export 'struct mif6' to userland via sysctl.
- */
- struct mif6_sctl {
- u_char m6_flags; /* MIFF_ flags defined above */
- u_int m6_rate_limit; /* max rate */
- struct in6_addr m6_lcl_addr; /* local interface address */
- uint32_t m6_ifp; /* interface index */
- u_quad_t m6_pkt_in; /* # pkts in on interface */
- u_quad_t m6_pkt_out; /* # pkts out on interface */
- u_quad_t m6_bytes_in; /* # bytes in on interface */
- u_quad_t m6_bytes_out; /* # bytes out on interface */
- };
- #if defined(_KERNEL) || defined(KERNEL)
- /*
- * The kernel's multicast-interface structure.
- */
- struct mif6 {
- u_char m6_flags; /* MIFF_ flags defined above */
- u_int m6_rate_limit; /* max rate */
- struct in6_addr m6_lcl_addr; /* local interface address */
- struct ifnet *m6_ifp; /* pointer to interface */
- u_quad_t m6_pkt_in; /* # pkts in on interface */
- u_quad_t m6_pkt_out; /* # pkts out on interface */
- u_quad_t m6_bytes_in; /* # bytes in on interface */
- u_quad_t m6_bytes_out; /* # bytes out on interface */
- #ifdef notyet
- u_int m6_rsvp_on; /* RSVP listening on this vif */
- struct socket *m6_rsvpd; /* RSVP daemon socket */
- #endif
- };
- /*
- * The kernel's multicast forwarding cache entry structure
- */
- struct mf6c {
- struct sockaddr_in6 mf6c_origin; /* IPv6 origin of mcasts */
- struct sockaddr_in6 mf6c_mcastgrp; /* multicast group associated*/
- mifi_t mf6c_parent; /* incoming IF */
- struct if_set mf6c_ifset; /* set of outgoing IFs */
- u_quad_t mf6c_pkt_cnt; /* pkt count for src-grp */
- u_quad_t mf6c_byte_cnt; /* byte count for src-grp */
- u_quad_t mf6c_wrong_if; /* wrong if for src-grp */
- int mf6c_expire; /* time to clean entry up */
- struct timeval mf6c_last_assert; /* last time I sent an assert*/
- struct rtdetq *mf6c_stall; /* pkts waiting for route */
- struct mf6c *mf6c_next; /* hash table linkage */
- };
- #define MF6C_INCOMPLETE_PARENT ((mifi_t)-1)
- /*
- * Argument structure used for pkt info. while upcall is made
- */
- #ifndef _NETINET_IP_MROUTE_H_
- struct rtdetq { /* XXX: rtdetq is also defined in ip_mroute.h */
- struct mbuf *m; /* A copy of the packet */
- struct ifnet *ifp; /* Interface pkt came in on */
- #ifdef UPCALL_TIMING
- struct timeval t; /* Timestamp */
- #endif /* UPCALL_TIMING */
- struct rtdetq *next;
- };
- #endif /* _NETINET_IP_MROUTE_H_ */
- #define MF6CTBLSIZ 256
- #if (MF6CTBLSIZ & (MF6CTBLSIZ - 1)) == 0 /* from sys:route.h */
- #define MF6CHASHMOD(h) ((h) & (MF6CTBLSIZ - 1))
- #else
- #define MF6CHASHMOD(h) ((h) % MF6CTBLSIZ)
- #endif
- #define MAX_UPQ6 4 /* max. no of pkts in upcall Q */
- extern int (*ip6_mrouter_set)(struct socket *so, struct sockopt *sopt);
- extern int (*ip6_mrouter_get)(struct socket *so, struct sockopt *sopt);
- extern int (*ip6_mrouter_done)(void);
- extern int (*mrt6_ioctl)(u_long, caddr_t);
- #endif /* _KERNEL */
- #endif /* !_NETINET6_IP6_MROUTE_H_ */
|