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Diffstat (limited to 'usr.sbin/pim6sd/vif.h')
| -rw-r--r-- | usr.sbin/pim6sd/vif.h | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/usr.sbin/pim6sd/vif.h b/usr.sbin/pim6sd/vif.h new file mode 100644 index 0000000..f3e3495 --- /dev/null +++ b/usr.sbin/pim6sd/vif.h @@ -0,0 +1,277 @@ +/* + * Copyright (c) 1998 by the University of Southern California. + * All rights reserved. + * + * Permission to use, copy, modify, and distribute this software and + * its documentation in source and binary forms for lawful + * purposes and without fee is hereby granted, provided + * that the above copyright notice appear in all copies and that both + * the copyright notice and this permission notice appear in supporting + * documentation, and that any documentation, advertising materials, + * and other materials related to such distribution and use acknowledge + * that the software was developed by the University of Southern + * California and/or Information Sciences Institute. + * The name of the University of Southern California may not + * be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THE UNIVERSITY OF SOUTHERN CALIFORNIA DOES NOT MAKE ANY REPRESENTATIONS + * ABOUT THE SUITABILITY OF THIS SOFTWARE FOR ANY PURPOSE. THIS SOFTWARE IS + * PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND + * NON-INFRINGEMENT. + * + * IN NO EVENT SHALL USC, OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER IN CONTRACT, + * TORT, OR OTHER FORM OF ACTION, ARISING OUT OF OR IN CONNECTION WITH, + * THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Other copyrights might apply to parts of this software and are so + * noted when applicable. + * + * $FreeBSD$ + */ +/* + * Questions concerning this software should be directed to + * Mickael Hoerdt (hoerdt@clarinet.u-strasbg.fr) LSIIT Strasbourg. + * + */ +/* + * This program has been derived from pim6dd. + * The pim6dd program is covered by the license in the accompanying file + * named "LICENSE.pim6dd". + */ +/* + * This program has been derived from pimd. + * The pimd program is covered by the license in the accompanying file + * named "LICENSE.pimd". + * + */ +/* + * Part of this program has been derived from mrouted. + * The mrouted program is covered by the license in the accompanying file + * named "LICENSE.mrouted". + * + * The mrouted program is COPYRIGHT 1989 by The Board of Trustees of + * Leland Stanford Junior University. + * + */ + +#ifndef VIF_H +#define VIF_H + +#include <sys/param.h> +#include <sys/time.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <net/route.h> +#include <net/if.h> +#include <netinet6/ip6_mroute.h> +#include <netinet/ip_mroute.h> +#include "defs.h" + +extern int total_interfaces; +extern int udp_socket; +extern struct uvif uvifs[]; +extern vifi_t numvifs; +extern int vifs_down; +extern int phys_vif; +extern vifi_t reg_vif_num; + +#define NO_VIF ((vifi_t)MAXVIFS) /* An invalid vif index */ +#define DEFAULT_METRIC 1 +#define VIFF_DOWN 0x000100 +#define VIFF_DISABLED 0x000200 +#define VIFF_QUERIER 0x000400 +#define VIFF_REXMIT_PRUNES 0x004000 +#define VIFF_DR 0x040000 +#define VIFF_NONBRS 0x080000 +#define VIFF_PIM_NBR 0x200000 +#define VIFF_POINT_TO_POINT 0x400000 +#define NBRTYPE u_long +#define NBRBITS sizeof(NBRTYPE) *8 + + +extern if_set if_nullset; +#define IF_ISEMPTY(p) (memcmp((p), &if_nullset, sizeof(if_nullset)) == 0) +#define IF_SAME(p1, p2) (memcmp((p1),(p2),sizeof(*(p1))) == 0) +#define IF_CLR_MASK(p, mask) \ + {\ + int idx;\ + for (idx = 0; idx < sizeof(*(p))/sizeof(fd_mask); idx++) {\ + (p)->ifs_bits[idx] &= ~((mask)->ifs_bits[idx]);\ + }\ + } +#define IF_MERGE(p1, p2, result) \ + {\ + int idx;\ + for (idx = 0; idx < sizeof(*(p1))/sizeof(fd_mask); idx++) {\ + (result)->ifs_bits[idx] = (p1)->ifs_bits[idx]|(p2)->ifs_bits[idx]; \ + }\ + } + +typedef struct { + NBRTYPE hi; + NBRTYPE lo; +} nbrbitmap_t; + +struct vf_element { + struct vf_element *vfe_next; + struct sockaddr_in6 *vfe_addr; + struct in6_addr vfe_mask; + int vfe_flags; +#define VFRF_EXACT 0x0001 +}; + +#define VFT_ACCEPT 1 +#define VFT_DENY 2 +#define VFF_BIDIR 1 + +struct vif_filter { + int vf_type; + int vf_flags; + struct vf_element *vf_filter; +}; + +struct listaddr { + struct listaddr *al_next; /* link to next addr, MUST BE FIRST */ + struct sockaddr_in6 al_addr; /* local group or neighbor address */ + u_long al_timer; /* for timing out group or neighbor */ + time_t al_ctime; /* entry creation time */ + union { + u_int32 alu_genid; /* generation id for neighbor */ + struct sockaddr_in6 alu_reporter; /* a host which reported membership */ + } al_alu; + u_char al_pv; /* router protocol version */ + u_char al_mv; /* router mrouted version */ + u_char al_old; /* time since heard old report */ + u_char al_index; /* neighbor index */ + u_long al_timerid; /* timer for group membership */ + u_long al_query; /* timer for repeated leave query */ + u_int16 al_flags; /* flags related to this neighbor */ +}; + +#define al_genid al_alu.alu_genid +#define al_reporter al_alu.alu_reporter + +/* + * User level Virtual Interface structure + * + * A "virtual interface" is either a physical, multicast-capable interface + * (called a "phyint"), a virtual point-to-point link (called a "tunnel") + * or a "register vif" used by PIM. The register vif is used by the + * Designated Router (DR) to send encapsulated data packets to the + * Rendevous Point (RP) for a particular group. The data packets are + * encapsulated in PIM messages (IPPROTO_PIM = 103) and then unicast to + * the RP. + * (Note: all addresses, subnet numbers and masks are kept in NETWORK order.) + */ +struct uvif { + u_int uv_flags; + u_char uv_metric; /* VIFF_ flags defined below */ + u_char uv_admetric; /* advertised cost of this vif */ + u_int uv_rate_limit; /* rate limit on this vif */ + + struct phaddr *uv_linklocal; /* link-local address of this vif */ + struct sockaddr_in6 uv_rmt_addr;/* remote end-point addr (tunnels only) */ + struct sockaddr_in6 uv_dst_addr;/* destination for PIM messages */ + struct sockaddr_in6 uv_prefix; /* prefix (phyints only) */ + struct in6_addr uv_subnetmask; /* subnet mask (phyints only) */ + + char uv_name[IFNAMSIZ]; /* interface name */ + u_int uv_ifindex; /* index of the interface */ + u_int uv_siteid; /* index of the site on the interface */ + + struct listaddr *uv_groups; /* list of local groups (phyints only) */ + struct lisaddr *uv_dvmrp_neighbors; + nbrbitmap_t uv_nbrmap; /* bitmap of active neighboring routers */ + struct listaddr *uv_querier; /* MLD querier on vif */ + int uv_prune_lifetime; /* Prune lifetime or 0 for default */ + struct vif_acl *uv_acl; /* access control list of groups */ + int uv_leaftimer; /* time until this vif is considrd leaf */ + struct phaddr *uv_addrs; /* Additional addresses on this vif */ + struct vif_filter *uvfilter; /* Route filters on this vif */ + u_int16 uv_pim_hello_timer; /* timer for sending PIM hello msgs */ + u_int16 uv_gq_timer; /* Group Query timer */ + u_int16 uv_jp_timer; /* Join/Prune timer */ + int uv_local_pref; /* default local preference for assert */ + int uv_local_metric; /* default local metric for assert */ + struct pim_nbr_entry *uv_pim_neighbors; /* list of PIM nbr routers */ + + void *config_attr; /* temporary buffer while parsing config */ + + /* the followings are to collect statistics */ + /* incoming PIM6 packets on this interface */ + u_quad_t uv_in_pim6_hello; + u_quad_t uv_in_pim6_join_prune; + u_quad_t uv_in_pim6_bootsrap; + u_quad_t uv_in_pim6_assert; + /* outgoing PIM6 packets on this interface */ + u_quad_t uv_out_pim6_hello; + u_quad_t uv_out_pim6_join_prune; + u_quad_t uv_out_pim6_bootsrap; + u_quad_t uv_out_pim6_assert; + /* incoming MLD packets on this interface */ + u_quad_t uv_in_mld_query; + u_quad_t uv_in_mld_report; + u_quad_t uv_in_mld_done; + /* outgoing MLD packets on this interface */ + u_quad_t uv_out_mld_query; + u_quad_t uv_out_mld_report; + u_quad_t uv_out_mld_done; + /* statistics about the forwarding cache in kernel */ + u_quad_t uv_cache_miss; + u_quad_t uv_cache_notcreated; + /* occurrences of timeouts */ + u_quad_t uv_pim6_nbr_timo; + u_quad_t uv_listener_timo; + u_quad_t uv_outif_timo; /* outgoing interfaces timers */ +}; + +struct phaddr { + struct phaddr *pa_next; + struct sockaddr_in6 pa_addr; + struct sockaddr_in6 pa_prefix; + struct in6_addr pa_subnetmask; +}; + + +/* The Access Control List (list with scoped addresses) member */ +#define VIFF_NOLISTENER 0x800000 /* no listener on the link */ + +struct vif_acl { + struct vif_acl *acl_next; + struct sockaddr_in6 acl_addr; + struct in6_addr acl_mask; +}; + +/* + * Used to get the RPF neighbor and IIF info + * for a given source from the unicast routing table. + */ + +struct rpfctl { + struct sockaddr_in6 source; /* the source for which we want iif and rpfnbr */ + struct sockaddr_in6 rpfneighbor;/* next hop towards the source */ + vifi_t iif; /* the incoming interface to reach the next hop */ +}; + + + + +extern void init_vifs __P(()); +extern void stop_all_vifs __P(()); +extern void check_vif_state __P(()); +struct sockaddr_in6 * max_global_address(); +struct sockaddr_in6 * uv_global __P(()); +extern vifi_t local_address __P((struct sockaddr_in6 *src)); +struct sockaddr_in6 * local_iface( char *ifname ); +extern vifi_t find_vif_direct __P((struct sockaddr_in6 *src)); +extern vifi_t find_vif_direct_local __P((struct sockaddr_in6 *src)); +extern int vif_forwarder __P((if_set *p1 ,if_set *p2)); +extern if_set *vif_and __P((if_set *p1, if_set *p2, if_set *result)); +extern if_set *vif_xor __P((if_set *p1, if_set *p2, if_set *result)); +extern struct uvif *find_vif __P((char *ifname)); +#endif |
