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Diffstat (limited to 'ripngd/ripngd.h')
| -rw-r--r-- | ripngd/ripngd.h | 318 |
1 files changed, 318 insertions, 0 deletions
diff --git a/ripngd/ripngd.h b/ripngd/ripngd.h new file mode 100644 index 00000000..2509bdd5 --- /dev/null +++ b/ripngd/ripngd.h @@ -0,0 +1,318 @@ +/* + * RIPng related value and structure. + * Copyright (C) 1998 Kunihiro Ishiguro + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * GNU Zebra is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Zebra; see the file COPYING. If not, write to the Free + * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ + +#ifndef _ZEBRA_RIPNG_RIPNGD_H +#define _ZEBRA_RIPNG_RIPNGD_H + +/* RIPng version and port number. */ +#define RIPNG_V1 1 +#define RIPNG_PORT_DEFAULT 521 +#define RIPNG_VTY_PORT 2603 +#define RIPNG_VTYSH_PATH "/tmp/.ripngd" +#define RIPNG_MAX_PACKET_SIZE 1500 +#define RIPNG_PRIORITY_DEFAULT 0 + +/* RIPng commands. */ +#define RIPNG_REQUEST 1 +#define RIPNG_RESPONSE 2 + +/* RIPng metric and multicast group address. */ +#define RIPNG_METRIC_INFINITY 16 +#define RIPNG_METRIC_NEXTHOP 0xff +#define RIPNG_GROUP "ff02::9" + +/* RIPng timers. */ +#define RIPNG_UPDATE_TIMER_DEFAULT 30 +#define RIPNG_TIMEOUT_TIMER_DEFAULT 180 +#define RIPNG_GARBAGE_TIMER_DEFAULT 120 + +/* Default config file name. */ +#define RIPNG_DEFAULT_CONFIG "ripngd.conf" + +/* RIPng route types. */ +#define RIPNG_ROUTE_RTE 0 +#define RIPNG_ROUTE_STATIC 1 +#define RIPNG_ROUTE_AGGREGATE 2 + +/* Interface send/receive configuration. */ +#define RIPNG_SEND_UNSPEC 0 +#define RIPNG_SEND_OFF 1 +#define RIPNG_RECEIVE_UNSPEC 0 +#define RIPNG_RECEIVE_OFF 1 + +/* Split horizon definitions. */ +#define RIPNG_SPLIT_HORIZON_UNSPEC 0 +#define RIPNG_SPLIT_HORIZON_NONE 1 +#define RIPNG_SPLIT_HORIZON 2 +#define RIPNG_SPLIT_HORIZON_POISONED 3 + +/* RIP default route's accept/announce methods. */ +#define RIPNG_DEFAULT_ADVERTISE_UNSPEC 0 +#define RIPNG_DEFAULT_ADVERTISE_NONE 1 +#define RIPNG_DEFAULT_ADVERTISE 2 + +#define RIPNG_DEFAULT_ACCEPT_UNSPEC 0 +#define RIPNG_DEFAULT_ACCEPT_NONE 1 +#define RIPNG_DEFAULT_ACCEPT 2 + +/* Default value for "default-metric" command. */ +#define RIPNG_DEFAULT_METRIC_DEFAULT 1 + +/* For max RTE calculation. */ +#ifndef IPV6_HDRLEN +#define IPV6_HDRLEN 40 +#endif /* IPV6_HDRLEN */ + +#ifndef IFMINMTU +#define IFMINMTU 576 +#endif /* IFMINMTU */ + +/* RIPng structure. */ +struct ripng +{ + /* RIPng socket. */ + int sock; + + /* RIPng Parameters.*/ + u_char command; + u_char version; + unsigned long update_time; + unsigned long timeout_time; + unsigned long garbage_time; + int max_mtu; + int default_metric; + int default_information; + + /* Input/output buffer of RIPng. */ + struct stream *ibuf; + struct stream *obuf; + + /* RIPng routing information base. */ + struct route_table *table; + + /* RIPng only static route information. */ + struct route_table *route; + + /* RIPng aggregate route information. */ + struct route_table *aggregate; + + /* RIPng threads. */ + struct thread *t_read; + struct thread *t_write; + struct thread *t_update; + struct thread *t_garbage; + struct thread *t_zebra; + + /* Triggered update hack. */ + int trigger; + struct thread *t_triggered_update; + struct thread *t_triggered_interval; + + /* For redistribute route map. */ + struct + { + char *name; + struct route_map *map; + int metric_config; + u_int32_t metric; + } route_map[ZEBRA_ROUTE_MAX]; +}; + +/* Routing table entry. */ +struct rte +{ + struct in6_addr addr; + u_short tag; + u_char prefixlen; + u_char metric; +}; + +/* RIPNG send packet. */ +struct ripng_packet +{ + u_char command; + u_char version; + u_int16_t zero; + struct rte rte[1]; +}; + +/* Each route's information. */ +struct ripng_info +{ + /* This route's type. Static, ripng or aggregate. */ + u_char type; + + /* Sub type for static route. */ + u_char sub_type; + + /* RIPng specific information */ + struct in6_addr nexthop; + struct in6_addr from; + + /* Which interface does this route come from. */ + unsigned int ifindex; + + /* Metric of this route. */ + u_char metric; + + /* Tag field of RIPng packet.*/ + u_int16_t tag; + + /* For aggregation. */ + unsigned int suppress; + + /* Flags of RIPng route. */ +#define RIPNG_RTF_FIB 1 +#define RIPNG_RTF_CHANGED 2 + u_char flags; + + /* Garbage collect timer. */ + struct thread *t_timeout; + struct thread *t_garbage_collect; + + /* Route-map features - this variables can be changed. */ + u_char metric_set; + + struct route_node *rp; +}; + +/* RIPng tag structure. */ +struct ripng_tag +{ + /* Tag value. */ + u_int16_t tag; + + /* Port. */ + u_int16_t port; + + /* Multicast group. */ + struct in6_addr maddr; + + /* Table number. */ + int table; + + /* Distance. */ + int distance; + + /* Split horizon. */ + u_char split_horizon; + + /* Poison reverse. */ + u_char poison_reverse; +}; + +/* RIPng specific interface configuration. */ +struct ripng_interface +{ + /* RIPng is enabled on this interface. */ + int enable_network; + int enable_interface; + + /* RIPng is running on this interface. */ + int running; + + /* For filter type slot. */ +#define RIPNG_FILTER_IN 0 +#define RIPNG_FILTER_OUT 1 +#define RIPNG_FILTER_MAX 2 + + /* Access-list. */ + struct access_list *list[RIPNG_FILTER_MAX]; + + /* Prefix-list. */ + struct prefix_list *prefix[RIPNG_FILTER_MAX]; + + /* Route-map. */ + struct route_map *routemap[RIPNG_FILTER_MAX]; + + /* RIPng tag configuration. */ + struct ripng_tag *rtag; + + /* Default information originate. */ + u_char default_originate; + + /* Default information only. */ + u_char default_only; + + /* Wake up thread. */ + struct thread *t_wakeup; + + /* Passive interface. */ + int passive; +}; + +/* All RIPng events. */ +enum ripng_event +{ + RIPNG_READ, + RIPNG_ZEBRA, + RIPNG_REQUEST_EVENT, + RIPNG_UPDATE_EVENT, + RIPNG_TRIGGERED_UPDATE, +}; + +/* RIPng timer on/off macro. */ +#define RIPNG_TIMER_ON(T,F,V) \ +do { \ + if (!(T)) \ + (T) = thread_add_timer (master, (F), rinfo, (V)); \ +} while (0) + +#define RIPNG_TIMER_OFF(T) \ +do { \ + if (T) \ + { \ + thread_cancel(T); \ + (T) = NULL; \ + } \ +} while (0) + +/* Count prefix size from mask length */ +#define PSIZE(a) (((a) + 7) / (8)) + +/* Extern variables. */ +extern struct ripng *ripng; + +extern struct thread_master *master; + +/* Prototypes. */ +void ripng_init (); +void ripng_if_init (); +void ripng_terminate (); +void ripng_zclient_start (); +void zebra_init (); +struct ripng_info * ripng_info_new (); +void ripng_info_free (struct ripng_info *rinfo); +void ripng_event (enum ripng_event, int); +int ripng_request (struct interface *ifp); +void ripng_redistribute_add (int, int, struct prefix_ipv6 *, unsigned int); +void ripng_redistribute_delete (int, int, struct prefix_ipv6 *, unsigned int); +void ripng_redistribute_withdraw (int type); + +void ripng_distribute_update_interface (struct interface *); +void ripng_if_rmap_update_interface (struct interface *); + +void ripng_zebra_ipv6_add (struct prefix_ipv6 *p, struct in6_addr *nexthop, unsigned int ifindex); +void ripng_zebra_ipv6_delete (struct prefix_ipv6 *p, struct in6_addr *nexthop, unsigned int ifindex); +void ripng_route_map_init (); + +#endif /* _ZEBRA_RIPNG_RIPNGD_H */ |