--- /dev/null
+/*!\file netinet6/ip6_mrou.h
+ *
+ */
+
+/* $FreeBSD: src/sys/netinet6/ip6_mroute.h,v 1.5 2002/04/19 04:46:23 suz Exp $ */
+/* $KAME: ip6_mroute.h,v 1.19 2001/06/14 06:12:55 suz Exp $ */
+
+/*
+ * 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.
+ */
+
+/* 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 */
+#ifdef notyet
+ u_int mif6c_rate_limit; /* max rate */
+#endif
+};
+
+#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 {
+ u_quad_t mrt6s_mfc_lookups; /* # forw. cache hash table hits */
+ u_quad_t mrt6s_mfc_misses; /* # forw. cache hash table misses */
+ u_quad_t mrt6s_upcalls; /* # calls to mrouted */
+ u_quad_t mrt6s_no_route; /* no route for packet's origin */
+ u_quad_t mrt6s_bad_tunnel; /* malformed tunnel options */
+ u_quad_t mrt6s_cant_tunnel; /* no room for tunnel options */
+ u_quad_t mrt6s_wrong_if; /* arrived on wrong interface */
+ u_quad_t mrt6s_upq_ovflw; /* upcall Q overflow */
+ u_quad_t mrt6s_cache_cleanups; /* # entries with no upcalls */
+ u_quad_t mrt6s_drop_sel; /* pkts dropped selectively */
+ u_quad_t mrt6s_q_overflow; /* pkts dropped - Q overflow */
+ u_quad_t mrt6s_pkt2large; /* pkts dropped - size > BKT SIZE */
+ u_quad_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 */
+#if 0
+#define MRT6MSG_NOCACHE 1
+#define MRT6MSG_WRONGMIF 2
+#define MRT6MSG_WHOLEPKT 3 /* used for user level encap*/
+#endif
+ 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 draft-ietf-ipngwg-2292bis-01)
+ */
+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 */
+};
+
+#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 */
+#ifdef notyet
+ struct tbf *m6_tbf; /* token bucket structure at intf. */
+#endif
+ 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 */
+ struct route_in6 m6_route;/* cached route if this is a tunnel */
+#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 */
+
+int ip6_mrouter_set __P((struct socket *so, struct sockopt *sopt));
+int ip6_mrouter_get __P((struct socket *so, struct sockopt *sopt));
+int ip6_mrouter_done __P((void));
+int mrt6_ioctl __P((int, caddr_t));
+#endif /* _KERNEL */
+
+#endif /* !_NETINET6_IP6_MROUTE_H_ */
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