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0fea3d5165
kernel IPv6 multicast routing support. pim6 dense mode daemon pim6 sparse mode daemon netstat support of IPv6 multicast routing statistics Merging to the current and testing with other existing multicast routers is done by Tatsuya Jinmei <jinmei@kame.net>, who writes and maintainances the base code in KAME distribution. Make world check and kernel build check was also successful.
229 lines
10 KiB
C
229 lines
10 KiB
C
/*
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* Copyright (c) 1998 by the University of Oregon.
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* All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation in source and binary forms for lawful
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* purposes and without fee is hereby granted, provided
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* that the above copyright notice appear in all copies and that both
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* the copyright notice and this permission notice appear in supporting
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* documentation, and that any documentation, advertising materials,
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* and other materials related to such distribution and use acknowledge
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* that the software was developed by the University of Oregon.
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* The name of the University of Oregon may not be used to endorse or
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* promote products derived from this software without specific prior
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* written permission.
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*
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* THE UNIVERSITY OF OREGON DOES NOT MAKE ANY REPRESENTATIONS
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* ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE. THIS SOFTWARE IS
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* PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND
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* NON-INFRINGEMENT.
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*
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* IN NO EVENT SHALL UO, OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT,
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* TORT, OR OTHER FORM OF ACTION, ARISING OUT OF OR IN CONNECTION WITH,
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* THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Other copyrights might apply to parts of this software and are so
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* noted when applicable.
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*/
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/*
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* Questions concerning this software should be directed to
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* Kurt Windisch (kurtw@antc.uoregon.edu)
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*
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* $Id: mrt.h,v 1.2 1999/08/24 10:04:56 jinmei Exp $
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*/
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/*
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* Part of this program has been derived from PIM sparse-mode pimd.
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* The pimd program is covered by the license in the accompanying file
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* named "LICENSE.pimd".
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*
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* The pimd program is COPYRIGHT 1998 by University of Southern California.
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*
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* Part of this program has been derived from mrouted.
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* The mrouted program is covered by the license in the accompanying file
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* named "LICENSE.mrouted".
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*
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* The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
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* Leland Stanford Junior University.
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*
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* $FreeBSD$
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*/
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#define MRTF_SPT 0x0001 /* iif toward source */
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#define MRTF_WC 0x0002 /* (*,G) entry */
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#define MRTF_RP 0x0004 /* iif toward RP */
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#define MRTF_NEW 0x0008 /* new created routing entry */
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#define MRTF_IIF_REGISTER 0x0020 /* ??? */
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#define MRTF_REGISTER 0x0080 /* ??? */
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#define MRTF_KERNEL_CACHE 0x0200 /* a mirror for the kernel cache */
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#define MRTF_NULL_OIF 0x0400 /* null oif cache.. ??? */
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#define MRTF_REG_SUPP 0x0800 /* register suppress ??? */
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#define MRTF_ASSERTED 0x1000 /* upstream is not that of src ??? */
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#define MRTF_SG 0x2000 /* (S,G) pure, not hanging off of (*,G)*/
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#define MRTF_PMBR 0x4000 /* (*,*,RP) entry (for interop) */
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/* Macro to duplicate oif info (oif bits, timers): XXX: unused */
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#define VOIF_COPY(from, to) \
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do { \
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VIFM_COPY((from)->joined_oifs, (to)->joined_oifs); \
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VIFM_COPY((from)->oifs, (to)->oifs); \
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VIFM_COPY((from)->leaves, (to)->leaves); \
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VIFM_COPY((from)->pruned_oifs, (to)->pruned_oifs); \
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bcopy((from)->prune_timers, (to)->prune_timers, \
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numvifs*sizeof((from)->prune_timers[0])); \
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bcopy((from)->prune_delay_timerids, \
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(to)->prune_delay_timerids, \
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numvifs*sizeof((from)->prune_delay_timerids[0])); \
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(to)->join_delay_timerid = (from)->join_delay_timerid; \
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} while (0)
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#ifdef SAVE_MEMORY
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#define FREE_MRTENTRY(mrtentry_ptr) \
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do { \
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u_int16 i; \
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u_long *il_ptr; \
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free((char *)((mrtentry_ptr)->prune_timers)); \
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for(i=0, il_ptr=(mrtentry_ptr)->prune_delay_timerids; \
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i<numvifs; i++, il_ptr++) \
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timer_clearTimer(*il_ptr); \
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free((char *)((mrtentry_ptr)->prune_delay_timerids)); \
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timer_clearTimer((mrtentry_ptr)->join_delay_timerid); \
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delete_pim6_graft_entry((mrtentry_ptr)); \
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free((char *)(mrtentry_ptr)); \
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} while (0)
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#else
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#define FREE_MRTENTRY(mrtentry_ptr) \
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do { \
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u_int16 i; \
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u_long *il_ptr; \
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free((char *)((mrtentry_ptr)->prune_timers)); \
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for(i=0, il_ptr=(mrtentry_ptr)->prune_delay_timerids; \
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i<total_interfaces; i++, il_ptr++) \
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timer_clearTimer(*il_ptr); \
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free((char *)((mrtentry_ptr)->prune_delay_timerids)); \
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free((char *)((mrtentry_ptr)->last_assert)); \
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free((char *)((mrtentry_ptr)->last_prune)); \
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timer_clearTimer((mrtentry_ptr)->join_delay_timerid); \
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delete_pim6_graft_entry((mrtentry_ptr)); \
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free((char *)(mrtentry_ptr)); \
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} while (0)
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#endif /* SAVE_MEMORY */
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typedef struct pim_nbr_entry {
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struct pim_nbr_entry *next; /* link to next neighbor */
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struct pim_nbr_entry *prev; /* link to prev neighbor */
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struct sockaddr_in6 address; /* neighbor address */
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vifi_t vifi; /* which interface */
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u_int16 timer; /* for timing out neighbor */
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} pim_nbr_entry_t;
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/*
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* Used to get forwarded data related counts (number of packet, number of
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* bits, etc)
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*/
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struct sg_count {
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u_long pktcnt; /* Number of packets for (s,g) */
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u_long bytecnt; /* Number of bytes for (s,g) */
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u_long wrong_if; /* Number of packets received on wrong iif for (s,g) */
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};
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typedef struct mrtentry mrtentry_t;
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typedef struct pim_graft_entry {
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struct pim_graft_entry *next;
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struct pim_graft_entry *prev;
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mrtentry_t *mrtlink;
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} pim_graft_entry_t;
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typedef struct srcentry {
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struct srcentry *next; /* link to next entry */
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struct srcentry *prev; /* link to prev entry */
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struct sockaddr_in6 address; /* source or RP address */
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struct mrtentry *mrtlink; /* link to routing entries */
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vifi_t incoming; /* incoming vif */
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struct pim_nbr_entry *upstream; /* upstream router */
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u_int32 metric; /* Unicast Routing Metric to the source */
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u_int32 preference; /* The metric preference (for assers)*/
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u_int16 timer; /* Entry timer??? Delete? */
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} srcentry_t;
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typedef struct grpentry {
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struct grpentry *next; /* link to next entry */
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struct grpentry *prev; /* link to prev entry */
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struct sockaddr_in6 group; /* subnet group of multicasts */
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struct mrtentry *mrtlink; /* link to (S,G) routing entries */
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} grpentry_t;
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struct mrtentry {
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struct mrtentry *grpnext; /* next entry of same group */
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struct mrtentry *grpprev; /* prev entry of same group */
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struct mrtentry *srcnext; /* next entry of same source */
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struct mrtentry *srcprev; /* prev entry of same source */
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struct grpentry *group; /* pointer to group entry */
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struct srcentry *source; /* pointer to source entry (or RP) */
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vifi_t incoming; /* the iif (either toward S or RP) */
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if_set oifs; /* The current result oifs */
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if_set pruned_oifs; /* The pruned oifs (Prune received) */
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if_set asserted_oifs; /* The asserted oifs (Lost Assert) */
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if_set filter_oifs; /* The filtered oifs */
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if_set leaves; /* Has directly connected members */
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struct pim_nbr_entry *upstream; /* upstream router, needed because
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* of the asserts it may be different
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* than the source (or RP) upstream
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* router.
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*/
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u_int32 metric; /* Metric for the upstream */
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u_int32 preference; /* preference for the upstream */
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u_int16 *prune_timers; /* prune timer list */
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u_long *prune_delay_timerids; /* timers for LAN prunes */
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u_long join_delay_timerid; /* timer for delay joins */
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u_int16 flags; /* The MRTF_* flags */
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u_int16 timer; /* entry timer */
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u_int assert_timer;
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struct sg_count sg_count;
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u_long *last_assert; /* time for last data-driven assert */
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u_long *last_prune; /* time for last data-driven prune */
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pim_graft_entry_t *graft; /* Pointer into graft entry list */
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#ifdef RSRR
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struct rsrr_cache *rsrr_cache; /* Used to save RSRR requests for
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* routes change notification.
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*/
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#endif /* RSRR */
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};
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struct vif_count {
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u_long icount; /* Input packet count on vif */
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u_long ocount; /* Output packet count on vif */
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u_long ibytes; /* Input byte count on vif */
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u_long obytes; /* Output byte count on vif */
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};
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#define FILTER_RANGE 0
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#define FILTER_PREFIX 1
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struct mrtfilter {
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struct mrtfilter *next; /* link to the next entry */
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int type; /* filter type: RANGE or PREFIX */
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union { /* type specific data structure */
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struct {
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struct sockaddr_in6 from;
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struct sockaddr_in6 to;
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} mrtfu_range;
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struct {
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struct sockaddr_in6 prefix;
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struct in6_addr mask;
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} mrtfu_prefix;
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} mrtu;
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if_set ifset; /* interface list */
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};
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#define mrtf_from mrtu.mrtfu_range.from
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#define mrtf_to mrtu.mrtfu_range.to
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#define mrtf_prefix mrtu.mrtfu_prefix.prefix
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#define mrtf_mask mrtu.mrtfu_prefix.mask
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