ripngd.h
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上传日期:2009-11-15
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- /*
- * 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 */