0,0 → 1,281 |
/*!\file netinet6/ip6_mrou.h |
* |
*/ |
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/* $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 $ */ |
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/* |
* 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. |
*/ |
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/* BSDI ip_mroute.h,v 2.5 1996/10/11 16:01:48 pjd Exp */ |
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/* |
* 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 |
*/ |
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#ifndef _NETINET6_IP6_MROUTE_H_ |
#define _NETINET6_IP6_MROUTE_H_ |
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/* |
* 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) */ |
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#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 |
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typedef struct if_set { |
if_mask ifs_bits[howmany(IF_SETSIZE, NIFBITS)]; |
} if_set; |
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#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))) |
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/* |
* 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 */ |
}; |
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#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 */ |
}; |
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#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 */ |
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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 */ |
}; |
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#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 |
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#define MAX_UPQ6 4 /* max. no of pkts in upcall Q */ |
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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 */ |
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#endif /* !_NETINET6_IP6_MROUTE_H_ */ |