-/*
- * Copyright (c) 2008-2013 Apple Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-
-/* $FreeBSD: src/sys/netinet6/ip6_mroute.h,v 1.2.2.2 2001/07/03 11:01:53 ume Exp $ */
-/* $KAME: ip6_mroute.h,v 1.17 2001/02/10 02:05:52 itojun 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_
-#include <sys/appleapiopts.h>
-
-/*
- * Multicast Routing set/getsockopt commands.
- */
-#ifdef XNU_KERNEL_PRIVATE
-#define MRT6_OINIT 100 /* initialize forwarder (omrt6msg) */
-#endif /* XNU_KERNEL_PRIVATE */
-#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) */
-
-#ifdef __APPLE__
-#define GET_TIME(t) getmicrotime(&t)
-#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)) == 0) ? ((x) / (y)) : (((x) / (y)) + 1))
-#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 XNU_KERNEL_PRIVATE
-#if 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_int32_t 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
-#endif /* XNU_KERNEL_PRIVATE */
-
-/*
- * 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(XNU_KERNEL_PRIVATE)
-struct sioc_mif_req6_32 {
- mifi_t mifi;
- u_quad_t icount;
- u_quad_t ocount;
- u_quad_t ibytes;
- u_quad_t obytes;
-} __attribute__((aligned(4), packed));
-
-struct sioc_mif_req6_64 {
- mifi_t mifi;
- u_quad_t icount __attribute__((aligned(8)));
- u_quad_t ocount;
- u_quad_t ibytes;
- u_quad_t obytes;
-} __attribute__((aligned(8)));
-#endif /* XNU_KERNEL_PRIVATE */
-
-#ifdef PRIVATE
-#ifndef KERNEL
-/*
- * The kernel's multicast-interface structure.
- *
- * XXX: This is unused and is currently exposed for netstat.
- */
-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
- *
- * XXX: This is unused and is currently exposed for netstat.
- */
-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 */
-};
-#endif /* !KERNEL */
-
-#define MF6C_INCOMPLETE_PARENT ((mifi_t)-1)
-
-#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 */
-
-#ifdef BSD_KERNEL_PRIVATE
-/*
- * 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 */
-#if UPCALL_TIMING
- struct timeval t; /* Timestamp */
-#endif /* UPCALL_TIMING */
- struct rtdetq *next;
-};
-#endif /* _NETINET_IP_MROUTE_H_ */
-
-extern struct mrt6stat mrt6stat;
-
-#if MROUTING
-extern int ip6_mrouter_set(struct socket *, struct sockopt *);
-extern int ip6_mrouter_get(struct socket *, struct sockopt *);
-extern int ip6_mrouter_done(void);
-extern int mrt6_ioctl(u_long, caddr_t);
-#endif /* MROUTING */
-#endif /* BSD_KERNEL_PRIVATE */
-#endif /* PRIVATE */
-#endif /* !_NETINET6_IP6_MROUTE_H_ */
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