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.
278 lines
9.6 KiB
C
278 lines
9.6 KiB
C
/*
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* Copyright (c) 1998 by the University of Southern California.
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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 Southern
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* California and/or Information Sciences Institute.
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* The name of the University of Southern California may not
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* be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THE UNIVERSITY OF SOUTHERN CALIFORNIA 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 USC, 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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* $FreeBSD$
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*/
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/*
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* Questions concerning this software should be directed to
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* Mickael Hoerdt (hoerdt@clarinet.u-strasbg.fr) LSIIT Strasbourg.
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*
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*/
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/*
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* This program has been derived from pim6dd.
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* The pim6dd program is covered by the license in the accompanying file
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* named "LICENSE.pim6dd".
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*/
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/*
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* This program has been derived from 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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*/
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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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*/
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#ifndef VIF_H
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#define VIF_H
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <net/route.h>
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#include <net/if.h>
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#include <netinet6/ip6_mroute.h>
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#include <netinet/ip_mroute.h>
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#include "defs.h"
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extern int total_interfaces;
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extern int udp_socket;
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extern struct uvif uvifs[];
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extern vifi_t numvifs;
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extern int vifs_down;
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extern int phys_vif;
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extern vifi_t reg_vif_num;
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#define NO_VIF ((vifi_t)MAXVIFS) /* An invalid vif index */
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#define DEFAULT_METRIC 1
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#define VIFF_DOWN 0x000100
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#define VIFF_DISABLED 0x000200
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#define VIFF_QUERIER 0x000400
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#define VIFF_REXMIT_PRUNES 0x004000
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#define VIFF_DR 0x040000
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#define VIFF_NONBRS 0x080000
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#define VIFF_PIM_NBR 0x200000
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#define VIFF_POINT_TO_POINT 0x400000
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#define NBRTYPE u_long
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#define NBRBITS sizeof(NBRTYPE) *8
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extern if_set if_nullset;
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#define IF_ISEMPTY(p) (memcmp((p), &if_nullset, sizeof(if_nullset)) == 0)
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#define IF_SAME(p1, p2) (memcmp((p1),(p2),sizeof(*(p1))) == 0)
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#define IF_CLR_MASK(p, mask) \
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{\
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int idx;\
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for (idx = 0; idx < sizeof(*(p))/sizeof(fd_mask); idx++) {\
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(p)->ifs_bits[idx] &= ~((mask)->ifs_bits[idx]);\
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}\
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}
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#define IF_MERGE(p1, p2, result) \
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{\
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int idx;\
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for (idx = 0; idx < sizeof(*(p1))/sizeof(fd_mask); idx++) {\
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(result)->ifs_bits[idx] = (p1)->ifs_bits[idx]|(p2)->ifs_bits[idx]; \
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}\
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}
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typedef struct {
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NBRTYPE hi;
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NBRTYPE lo;
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} nbrbitmap_t;
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struct vf_element {
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struct vf_element *vfe_next;
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struct sockaddr_in6 *vfe_addr;
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struct in6_addr vfe_mask;
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int vfe_flags;
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#define VFRF_EXACT 0x0001
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};
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#define VFT_ACCEPT 1
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#define VFT_DENY 2
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#define VFF_BIDIR 1
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struct vif_filter {
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int vf_type;
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int vf_flags;
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struct vf_element *vf_filter;
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};
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struct listaddr {
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struct listaddr *al_next; /* link to next addr, MUST BE FIRST */
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struct sockaddr_in6 al_addr; /* local group or neighbor address */
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u_long al_timer; /* for timing out group or neighbor */
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time_t al_ctime; /* entry creation time */
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union {
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u_int32 alu_genid; /* generation id for neighbor */
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struct sockaddr_in6 alu_reporter; /* a host which reported membership */
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} al_alu;
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u_char al_pv; /* router protocol version */
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u_char al_mv; /* router mrouted version */
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u_char al_old; /* time since heard old report */
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u_char al_index; /* neighbor index */
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u_long al_timerid; /* timer for group membership */
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u_long al_query; /* timer for repeated leave query */
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u_int16 al_flags; /* flags related to this neighbor */
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};
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#define al_genid al_alu.alu_genid
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#define al_reporter al_alu.alu_reporter
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/*
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* User level Virtual Interface structure
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*
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* A "virtual interface" is either a physical, multicast-capable interface
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* (called a "phyint"), a virtual point-to-point link (called a "tunnel")
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* or a "register vif" used by PIM. The register vif is used by the
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* Designated Router (DR) to send encapsulated data packets to the
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* Rendevous Point (RP) for a particular group. The data packets are
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* encapsulated in PIM messages (IPPROTO_PIM = 103) and then unicast to
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* the RP.
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* (Note: all addresses, subnet numbers and masks are kept in NETWORK order.)
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*/
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struct uvif {
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u_int uv_flags;
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u_char uv_metric; /* VIFF_ flags defined below */
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u_char uv_admetric; /* advertised cost of this vif */
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u_int uv_rate_limit; /* rate limit on this vif */
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struct phaddr *uv_linklocal; /* link-local address of this vif */
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struct sockaddr_in6 uv_rmt_addr;/* remote end-point addr (tunnels only) */
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struct sockaddr_in6 uv_dst_addr;/* destination for PIM messages */
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struct sockaddr_in6 uv_prefix; /* prefix (phyints only) */
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struct in6_addr uv_subnetmask; /* subnet mask (phyints only) */
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char uv_name[IFNAMSIZ]; /* interface name */
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u_int uv_ifindex; /* index of the interface */
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u_int uv_siteid; /* index of the site on the interface */
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struct listaddr *uv_groups; /* list of local groups (phyints only) */
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struct lisaddr *uv_dvmrp_neighbors;
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nbrbitmap_t uv_nbrmap; /* bitmap of active neighboring routers */
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struct listaddr *uv_querier; /* MLD querier on vif */
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int uv_prune_lifetime; /* Prune lifetime or 0 for default */
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struct vif_acl *uv_acl; /* access control list of groups */
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int uv_leaftimer; /* time until this vif is considrd leaf */
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struct phaddr *uv_addrs; /* Additional addresses on this vif */
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struct vif_filter *uvfilter; /* Route filters on this vif */
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u_int16 uv_pim_hello_timer; /* timer for sending PIM hello msgs */
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u_int16 uv_gq_timer; /* Group Query timer */
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u_int16 uv_jp_timer; /* Join/Prune timer */
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int uv_local_pref; /* default local preference for assert */
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int uv_local_metric; /* default local metric for assert */
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struct pim_nbr_entry *uv_pim_neighbors; /* list of PIM nbr routers */
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void *config_attr; /* temporary buffer while parsing config */
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/* the followings are to collect statistics */
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/* incoming PIM6 packets on this interface */
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u_quad_t uv_in_pim6_hello;
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u_quad_t uv_in_pim6_join_prune;
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u_quad_t uv_in_pim6_bootsrap;
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u_quad_t uv_in_pim6_assert;
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/* outgoing PIM6 packets on this interface */
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u_quad_t uv_out_pim6_hello;
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u_quad_t uv_out_pim6_join_prune;
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u_quad_t uv_out_pim6_bootsrap;
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u_quad_t uv_out_pim6_assert;
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/* incoming MLD packets on this interface */
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u_quad_t uv_in_mld_query;
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u_quad_t uv_in_mld_report;
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u_quad_t uv_in_mld_done;
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/* outgoing MLD packets on this interface */
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u_quad_t uv_out_mld_query;
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u_quad_t uv_out_mld_report;
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u_quad_t uv_out_mld_done;
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/* statistics about the forwarding cache in kernel */
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u_quad_t uv_cache_miss;
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u_quad_t uv_cache_notcreated;
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/* occurrences of timeouts */
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u_quad_t uv_pim6_nbr_timo;
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u_quad_t uv_listener_timo;
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u_quad_t uv_outif_timo; /* outgoing interfaces timers */
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};
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struct phaddr {
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struct phaddr *pa_next;
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struct sockaddr_in6 pa_addr;
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struct sockaddr_in6 pa_prefix;
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struct in6_addr pa_subnetmask;
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};
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/* The Access Control List (list with scoped addresses) member */
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#define VIFF_NOLISTENER 0x800000 /* no listener on the link */
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struct vif_acl {
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struct vif_acl *acl_next;
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struct sockaddr_in6 acl_addr;
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struct in6_addr acl_mask;
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};
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/*
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* Used to get the RPF neighbor and IIF info
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* for a given source from the unicast routing table.
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*/
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struct rpfctl {
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struct sockaddr_in6 source; /* the source for which we want iif and rpfnbr */
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struct sockaddr_in6 rpfneighbor;/* next hop towards the source */
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vifi_t iif; /* the incoming interface to reach the next hop */
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};
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extern void init_vifs __P(());
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extern void stop_all_vifs __P(());
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extern void check_vif_state __P(());
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struct sockaddr_in6 * max_global_address();
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struct sockaddr_in6 * uv_global __P(());
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extern vifi_t local_address __P((struct sockaddr_in6 *src));
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struct sockaddr_in6 * local_iface( char *ifname );
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extern vifi_t find_vif_direct __P((struct sockaddr_in6 *src));
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extern vifi_t find_vif_direct_local __P((struct sockaddr_in6 *src));
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extern int vif_forwarder __P((if_set *p1 ,if_set *p2));
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extern if_set *vif_and __P((if_set *p1, if_set *p2, if_set *result));
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extern if_set *vif_xor __P((if_set *p1, if_set *p2, if_set *result));
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extern struct uvif *find_vif __P((char *ifname));
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#endif
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