ip_mroute.h

vxworks 6.x 的全部头文件

/* ip_mroute.h - multicast forwarding header file */

/*
 * Copyright (c) 1984-2005 Wind River Systems, Inc.
 *
 * The right to copy, distribute or otherwise make use of this software
 * may be licensed only pursuant to the terms of an applicable Wind River
 * license agreement. No license to Wind River intellectual property rights
 * is granted herein. All rights not licensed by Wind River are reserved
 * by Wind River.
 */

/*
 * 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
 * $FreeBSD: src/sys/netinet/ip_mroute.h,v 1.17 1999/12/29 04:41:01 peter Exp $
 */

/*
modification history
--------------------
01h,16jul05,dlk  Added tbf_timeo member to struct tbf for timer cancellation
                 when shutting down mrouter in virtual stack destructor.
01g,25feb05,niq  add support for router alert
01f,31jan05,niq  merge mroute changes from comp_wn_ipv6_multicast_interim-dev
                 branch  (ver 1)
01e,20sep04,rae  fix compiler warnings
01d,24jun03,rae  add #include netVersion.h
01c,10oct01,rae  merge from truestack ver 01k (v2 upgrade)
01b,08apr97,vin  removed declarations for ip_mforward and ip_mrouter_done.
		 implemented ip_mforward as a hook for scalability.
01a,03mar96,vin  created from BSD4.4lite2.
*/

#ifndef _NETINET_IP_MROUTE_H_
#define _NETINET_IP_MROUTE_H_

#ifdef __cplusplus
extern "C" {
#endif

#include "sys/times.h"
#include <netVersion.h>
#include <net/route.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.
 * Modified by Ahmed Helmy, SGI, June 1996.
 * Modified by Pavlin Radoslavov, ICSI, October 2002.
 *
 * MROUTING Revision: 3.3.1.3
 * and PIM-SMv2 and PIM-DM support, advanced API support,
 * bandwidth metering and signaling.
 */


/*
 * 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 assert processing */
#define MRT_PIM		MRT_ASSERT /* enable PIM processing */
#define MRT_API_SUPPORT	109	/* supported MRT API */
#define MRT_API_CONFIG	110	/* config MRT API */
#define MRT_ADD_BW_UPCALL 111	/* create bandwidth monitor */
#define MRT_DEL_BW_UPCALL 112	/* delete bandwidth monitor */
#define MRT_DEBUG 	120	/* enable debugging */


#define GET_TIME(t)	microtime(&t)

/*
 * Define common interface for timeval-related methods
 */

/*
 * 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))

    
typedef struct ipm_config_params {
    CFG_DATA_HDR         cfgh; 
    FUNCPTR		 cfg_privInitSysctl;
    } IPM_CONFIG_PARAMS;

/*
 * 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 */
#define VIFF_REGISTER	0x4		/* used for PIM Register encap/decap */

/*
 * Argument structure for MRT_ADD_MFC and MRT_DEL_MFC
 * XXX if you change this, make sure to change struct mfcctl2 as well.
 */
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 new argument structure for MRT_ADD_MFC and MRT_DEL_MFC overlays
 * and extends the old struct mfcctl.
 */
struct mfcctl2 {
	/* the mfcctl fields */
	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   */

	/* extension fields */
	uint8_t		mfcc_flags[MAXVIFS];	/* the MRT_MFC_FLAGS_* flags */
	struct in_addr	mfcc_rp;		/* the RP address            */
};
/*
 * The advanced-API flags.
 *
 * The MRT_MFC_FLAGS_XXX API flags are also used as flags
 * for the mfcc_flags field.
 */
#define	MRT_MFC_FLAGS_DISABLE_WRONGVIF	(1 << 0) /* disable WRONGVIF signals */
#define	MRT_MFC_FLAGS_BORDER_VIF	(1 << 1) /* border vif		     */
#define MRT_MFC_RP			(1 << 8) /* enable RP address	     */
#define MRT_MFC_BW_UPCALL		(1 << 9) /* enable bw upcalls	     */
#define MRT_MFC_FLAGS_ALL		(MRT_MFC_FLAGS_DISABLE_WRONGVIF |    \
					 MRT_MFC_FLAGS_BORDER_VIF)
#define MRT_API_FLAGS_ALL		(MRT_MFC_FLAGS_ALL |		     \
					 MRT_MFC_RP |			     \
					 MRT_MFC_BW_UPCALL)

/*
 * Structure for installing or delivering an upcall if the
 * measured bandwidth is above or below a threshold.
 *
 * User programs (e.g. daemons) may have a need to know when the
 * bandwidth used by some data flow is above or below some threshold.
 * This interface allows the userland to specify the threshold (in
 * bytes and/or packets) and the measurement interval. Flows are
 * all packet with the same source and destination IP address.
 * At the moment the code is only used for multicast destinations
 * but there is nothing that prevents its use for unicast.
 *
 * The measurement interval cannot be shorter than some Tmin (currently, 3s).
 * The threshold is set in packets and/or bytes per_interval.
 *
 * Measurement works as follows:
 *
 * For >= measurements: 
 * The first packet marks the start of a measurement interval.
 * During an interval we count packets and bytes, and when we
 * pass the threshold we deliver an upcall and we are done.