mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-01 21:33:04 +00:00
263 lines
9.4 KiB
C
263 lines
9.4 KiB
C
/*
|
|
* Copyright (c) 1989 Stephen Deering.
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Stephen Deering of Stanford University.
|
|
*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
|
*
|
|
* @(#)ip_mroute.h 8.1 (Berkeley) 6/10/93
|
|
* $Id$
|
|
*/
|
|
|
|
#ifndef _NETINET_IP_MROUTE_H_
|
|
#define _NETINET_IP_MROUTE_H_
|
|
|
|
/*
|
|
* 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.
|
|
*
|
|
* MROUTING Revision: 3.3.1.3
|
|
*/
|
|
|
|
|
|
/*
|
|
* Multicast Routing set/getsockopt commands.
|
|
*/
|
|
#define MRT_INIT 100 /* initialize forwarder */
|
|
#define MRT_DONE 101 /* shut down forwarder */
|
|
#define MRT_ADD_VIF 102 /* create virtual interface */
|
|
#define MRT_DEL_VIF 103 /* delete virtual interface */
|
|
#define MRT_ADD_MFC 104 /* insert forwarding cache entry */
|
|
#define MRT_DEL_MFC 105 /* delete forwarding cache entry */
|
|
#define MRT_VERSION 106 /* get kernel version number */
|
|
#define MRT_ASSERT 107 /* enable PIM assert processing */
|
|
|
|
|
|
#define GET_TIME(t) microtime(&t)
|
|
|
|
/*
|
|
* Types and macros for handling bitmaps with one bit per virtual interface.
|
|
*/
|
|
#define MAXVIFS 32
|
|
typedef u_long vifbitmap_t;
|
|
typedef u_short vifi_t; /* type of a vif index */
|
|
#define ALL_VIFS (vifi_t)-1
|
|
|
|
#define VIFM_SET(n, m) ((m) |= (1 << (n)))
|
|
#define VIFM_CLR(n, m) ((m) &= ~(1 << (n)))
|
|
#define VIFM_ISSET(n, m) ((m) & (1 << (n)))
|
|
#define VIFM_CLRALL(m) ((m) = 0x00000000)
|
|
#define VIFM_COPY(mfrom, mto) ((mto) = (mfrom))
|
|
#define VIFM_SAME(m1, m2) ((m1) == (m2))
|
|
|
|
|
|
/*
|
|
* Argument structure for MRT_ADD_VIF.
|
|
* (MRT_DEL_VIF takes a single vifi_t argument.)
|
|
*/
|
|
struct vifctl {
|
|
vifi_t vifc_vifi; /* the index of the vif to be added */
|
|
u_char vifc_flags; /* VIFF_ flags defined below */
|
|
u_char vifc_threshold; /* min ttl required to forward on vif */
|
|
u_int vifc_rate_limit; /* max rate */
|
|
struct in_addr vifc_lcl_addr; /* local interface address */
|
|
struct in_addr vifc_rmt_addr; /* remote address (tunnels only) */
|
|
};
|
|
|
|
#define VIFF_TUNNEL 0x1 /* vif represents a tunnel end-point */
|
|
#define VIFF_SRCRT 0x2 /* tunnel uses IP source routing */
|
|
|
|
/*
|
|
* Argument structure for MRT_ADD_MFC and MRT_DEL_MFC
|
|
* (mfcc_tos to be added at a future point)
|
|
*/
|
|
struct mfcctl {
|
|
struct in_addr mfcc_origin; /* ip origin of mcasts */
|
|
struct in_addr mfcc_mcastgrp; /* multicast group associated*/
|
|
vifi_t mfcc_parent; /* incoming vif */
|
|
u_char mfcc_ttls[MAXVIFS]; /* forwarding ttls on vifs */
|
|
};
|
|
|
|
/*
|
|
* The kernel's multicast routing statistics.
|
|
*/
|
|
struct mrtstat {
|
|
u_long mrts_mfc_lookups; /* # forw. cache hash table hits */
|
|
u_long mrts_mfc_misses; /* # forw. cache hash table misses */
|
|
u_long mrts_upcalls; /* # calls to mrouted */
|
|
u_long mrts_no_route; /* no route for packet's origin */
|
|
u_long mrts_bad_tunnel; /* malformed tunnel options */
|
|
u_long mrts_cant_tunnel; /* no room for tunnel options */
|
|
u_long mrts_wrong_if; /* arrived on wrong interface */
|
|
u_long mrts_upq_ovflw; /* upcall Q overflow */
|
|
u_long mrts_cache_cleanups; /* # entries with no upcalls */
|
|
u_long mrts_drop_sel; /* pkts dropped selectively */
|
|
u_long mrts_q_overflow; /* pkts dropped - Q overflow */
|
|
u_long mrts_pkt2large; /* pkts dropped - size > BKT SIZE */
|
|
u_long mrts_upq_sockfull; /* upcalls dropped - socket full */
|
|
};
|
|
|
|
/*
|
|
* Argument structure used by mrouted to get src-grp pkt counts
|
|
*/
|
|
struct sioc_sg_req {
|
|
struct in_addr src;
|
|
struct in_addr grp;
|
|
u_long pktcnt;
|
|
u_long bytecnt;
|
|
u_long wrong_if;
|
|
};
|
|
|
|
/*
|
|
* Argument structure used by mrouted to get vif pkt counts
|
|
*/
|
|
struct sioc_vif_req {
|
|
vifi_t vifi; /* vif number */
|
|
u_long icount; /* Input packet count on vif */
|
|
u_long ocount; /* Output packet count on vif */
|
|
u_long ibytes; /* Input byte count on vif */
|
|
u_long obytes; /* Output byte count on vif */
|
|
};
|
|
|
|
|
|
/*
|
|
* The kernel's virtual-interface structure.
|
|
*/
|
|
struct vif {
|
|
u_char v_flags; /* VIFF_ flags defined above */
|
|
u_char v_threshold; /* min ttl required to forward on vif*/
|
|
u_int v_rate_limit; /* max rate */
|
|
struct tbf *v_tbf; /* token bucket structure at intf. */
|
|
struct in_addr v_lcl_addr; /* local interface address */
|
|
struct in_addr v_rmt_addr; /* remote address (tunnels only) */
|
|
struct ifnet *v_ifp; /* pointer to interface */
|
|
u_long v_pkt_in; /* # pkts in on interface */
|
|
u_long v_pkt_out; /* # pkts out on interface */
|
|
u_long v_bytes_in; /* # bytes in on interface */
|
|
u_long v_bytes_out; /* # bytes out on interface */
|
|
struct route v_route; /* cached route if this is a tunnel */
|
|
u_int v_rsvp_on; /* RSVP listening on this vif */
|
|
struct socket *v_rsvpd; /* RSVP daemon socket */
|
|
};
|
|
|
|
/*
|
|
* The kernel's multicast forwarding cache entry structure
|
|
* (A field for the type of service (mfc_tos) is to be added
|
|
* at a future point)
|
|
*/
|
|
struct mfc {
|
|
struct in_addr mfc_origin; /* IP origin of mcasts */
|
|
struct in_addr mfc_mcastgrp; /* multicast group associated*/
|
|
vifi_t mfc_parent; /* incoming vif */
|
|
u_char mfc_ttls[MAXVIFS]; /* forwarding ttls on vifs */
|
|
u_long mfc_pkt_cnt; /* pkt count for src-grp */
|
|
u_long mfc_byte_cnt; /* byte count for src-grp */
|
|
u_long mfc_wrong_if; /* wrong if for src-grp */
|
|
int mfc_expire; /* time to clean entry up */
|
|
struct timeval mfc_last_assert; /* last time I sent an assert*/
|
|
};
|
|
|
|
/*
|
|
* Struct used to communicate from kernel to multicast router
|
|
* note the convenient similarity to an IP packet
|
|
*/
|
|
struct igmpmsg {
|
|
u_long unused1;
|
|
u_long unused2;
|
|
u_char im_msgtype; /* what type of message */
|
|
#define IGMPMSG_NOCACHE 1
|
|
#define IGMPMSG_WRONGVIF 2
|
|
u_char im_mbz; /* must be zero */
|
|
u_char im_vif; /* vif rec'd on */
|
|
u_char unused3;
|
|
struct in_addr im_src, im_dst;
|
|
};
|
|
|
|
/*
|
|
* Argument structure used for pkt info. while upcall is made
|
|
*/
|
|
struct rtdetq {
|
|
struct mbuf *m; /* A copy of the packet */
|
|
struct ifnet *ifp; /* Interface pkt came in on */
|
|
vifi_t xmt_vif; /* Saved copy of imo_multicast_vif */
|
|
#ifdef UPCALL_TIMING
|
|
struct timeval t; /* Timestamp */
|
|
#endif /* UPCALL_TIMING */
|
|
};
|
|
|
|
#define MFCTBLSIZ 256
|
|
#if (MFCTBLSIZ & (MFCTBLSIZ - 1)) == 0 /* from sys:route.h */
|
|
#define MFCHASHMOD(h) ((h) & (MFCTBLSIZ - 1))
|
|
#else
|
|
#define MFCHASHMOD(h) ((h) % MFCTBLSIZ)
|
|
#endif
|
|
|
|
#define MAX_UPQ 4 /* max. no of pkts in upcall Q */
|
|
|
|
/*
|
|
* Token Bucket filter code
|
|
*/
|
|
#define MAX_BKT_SIZE 10000 /* 10K bytes size */
|
|
#define MAXQSIZE 10 /* max # of pkts in queue */
|
|
|
|
/*
|
|
* the token bucket filter at each vif
|
|
*/
|
|
struct tbf
|
|
{
|
|
struct timeval tbf_last_pkt_t; /* arr. time of last pkt */
|
|
u_long tbf_n_tok; /* no of tokens in bucket */
|
|
u_long tbf_q_len; /* length of queue at this vif */
|
|
u_long tbf_max_q_len; /* max. queue length */
|
|
struct mbuf *tbf_q; /* Packet queue */
|
|
struct mbuf *tbf_t; /* tail-insertion pointer */
|
|
};
|
|
|
|
#ifdef KERNEL
|
|
|
|
extern int (*ip_mrouter_set) __P((int, struct socket *, struct mbuf *));
|
|
extern int (*ip_mrouter_get) __P((int, struct socket *, struct mbuf **));
|
|
extern int (*ip_mrouter_done) __P((void));
|
|
#ifdef MROUTING
|
|
extern int (*mrt_ioctl) __P((int, caddr_t));
|
|
#else
|
|
extern int (*mrt_ioctl) __P((int, caddr_t, struct proc *));
|
|
#endif
|
|
|
|
#endif /* KERNEL */
|
|
|
|
#endif /* _NETINET_IP_MROUTE_H_ */
|