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[/] [or1k/] [trunk/] [ecos-2.0/] [packages/] [net/] [tcpip/] [v2_0/] [include/] [netinet/] [ip_mroute.h] - Rev 1254
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//========================================================================== // // include/netinet/ip_mroute.h // // // //========================================================================== //####BSDCOPYRIGHTBEGIN#### // // ------------------------------------------- // // Portions of this software may have been derived from OpenBSD or other sources, // and are covered by the appropriate copyright disclaimers included herein. // // ------------------------------------------- // //####BSDCOPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): gthomas // Contributors: gthomas // Date: 2000-01-10 // Purpose: // Description: // // //####DESCRIPTIONEND#### // //========================================================================== /* $OpenBSD: ip_mroute.h,v 1.5 1999/12/08 06:50:20 itojun Exp $ */ /* $NetBSD: ip_mroute.h,v 1.10 1996/02/13 23:42:55 christos 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. * * MROUTING Revision: 1.2 */ #ifndef _NETINET_IP_MROUTE_H_ #define _NETINET_IP_MROUTE_H_ #include <sys/queue.h> /* * 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 */ /* * Types and macros for handling bitmaps with one bit per virtual interface. */ #define MAXVIFS 32 typedef u_int32_t vifbitmap_t; typedef u_int16_t vifi_t; /* type of a vif index */ #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_SETALL(m) ((m) = 0xffffffff) #define VIFM_CLRALL(m) ((m) = 0x00000000) #define VIFM_COPY(mfrom, mto) ((mto) = (mfrom)) #define VIFM_SAME(m1, m2) ((m1) == (m2)) #define VIFF_TUNNEL 0x1 /* vif represents a tunnel end-point */ #define VIFF_SRCRT 0x2 /* tunnel uses IP src routing */ /* * 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_int8_t vifc_flags; /* VIFF_ flags defined below */ u_int8_t vifc_threshold; /* min ttl required to forward on vif */ u_int32_t vifc_rate_limit; /* max rate */ struct in_addr vifc_lcl_addr;/* local interface address */ struct in_addr vifc_rmt_addr;/* remote address (tunnels only) */ }; /* * 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_int8_t mfcc_ttls[MAXVIFS]; /* forwarding ttls on vifs */ }; /* * 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 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 */ }; #ifdef _KERNEL /* * Token bucket filter at each vif */ struct tbf { u_int32_t last_pkt_t; /* arr. time of last pkt */ u_int32_t n_tok; /* no of tokens in bucket */ u_int32_t q_len; /* length of queue at this vif */ }; /* * The kernel's virtual-interface structure. */ struct vif { u_int8_t v_flags; /* VIFF_ flags defined above */ u_int8_t v_threshold; /* min ttl required to forward on vif */ u_int32_t 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 */ #ifdef RSVP_ISI int v_rsvp_on; /* # RSVP listening on this vif */ struct socket *v_rsvpd; /* # RSVPD daemon */ #endif /* RSVP_ISI */ }; /* * 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 { LIST_ENTRY(mfc) mfc_hash; struct in_addr mfc_origin; /* ip origin of mcasts */ struct in_addr mfc_mcastgrp; /* multicast group associated */ vifi_t mfc_parent; /* incoming vif */ u_int8_t 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 rtdetq *mfc_stall; /* pkts waiting for route */ }; /* * Structure used to communicate from kernel to multicast router. * (Note the convenient similarity to an IP packet.) */ struct igmpmsg { u_int32_t unused1; u_int32_t unused2; u_int8_t im_msgtype; /* what type of message */ #define IGMPMSG_NOCACHE 1 #define IGMPMSG_WRONGVIF 2 u_int8_t im_mbz; /* must be zero */ u_int8_t im_vif; /* vif rec'd on */ u_int8_t 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 */ #ifdef UPCALL_TIMING struct timeval t; /* timestamp */ #endif /* UPCALL_TIMING */ struct rtdetq *next; }; #define MFCTBLSIZ 256 #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. no of pkts in token queue */ /* * Queue structure at each vif */ struct pkt_queue { u_int32_t pkt_len; /* length of packet in queue */ struct mbuf *pkt_m; /* pointer to packet mbuf */ struct ip *pkt_ip; /* pointer to ip header */ }; int ip_mrouter_set __P((int, struct socket *, struct mbuf **)); int ip_mrouter_get __P((int, struct socket *, struct mbuf **)); int mrt_ioctl __P((u_long, caddr_t)); int ip_mrouter_done __P((void)); void reset_vif __P((struct vif *)); void vif_delete __P((struct ifnet *)); #ifdef RSVP_ISI int ip_mforward __P((struct mbuf *, struct ifnet *, struct ip_moptions *)); int legal_vif_num __P((int)); int ip_rsvp_vif_init __P((struct socket *, struct mbuf *)); int ip_rsvp_vif_done __P((struct socket *, struct mbuf *)); void ip_rsvp_force_done __P((struct socket *)); #if 0 void rsvp_input __P((struct mbuf *, struct ifnet *)); #else void rsvp_input __P((struct mbuf *, int, int)); #endif #else int ip_mforward __P((struct mbuf *, struct ifnet *)); #endif void ipip_input __P((struct mbuf *, ...)); #endif /* _KERNEL */ #endif // _NETINET_IP_MROUTE_H_
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