[mirror_frr.git] / ripngd / ripngd.h

/*
 * 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 this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef _ZEBRA_RIPNG_RIPNGD_H
#define _ZEBRA_RIPNG_RIPNGD_H

#include <zclient.h>
#include <vty.h>
#include <distribute.h>
#include <vector.h>
#include <memory.h>

/* RIPng version and port number. */
#define RIPNG_V1                         1
#define RIPNG_PORT_DEFAULT             521
#define RIPNG_VTY_PORT                2603
#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 peer timeout value. */
#define RIPNG_PEER_TIMER_DEFAULT       180

/* 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_DEFAULT              2
#define RIPNG_ROUTE_REDISTRIBUTE         3
#define RIPNG_ROUTE_INTERFACE            4
#define RIPNG_ROUTE_AGGREGATE            5

/* Interface send/receive configuration. */
#define RIPNG_SEND_UNSPEC                0
#define RIPNG_SEND_OFF                   1
#define RIPNG_RECEIVE_UNSPEC             0
#define RIPNG_RECEIVE_OFF                1

/* 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

/* For max RTE calculation. */
#ifndef IPV6_HDRLEN
#define IPV6_HDRLEN 40
#endif /* IPV6_HDRLEN */

#ifndef IFMINMTU
#define IFMINMTU    576
#endif /* IFMINMTU */

/* YANG paths */
#define RIPNG_INSTANCE	"/frr-ripngd:ripngd/instance"
#define RIPNG_IFACE	"/frr-interface:lib/interface/frr-ripngd:ripng"

DECLARE_MGROUP(RIPNGD)

/* RIPng structure. */
struct ripng {
	RB_ENTRY(ripng) entry;

	/* VRF this routing instance is associated with. */
	char *vrf_name;

	/* VRF backpointer (might be NULL if the VRF doesn't exist). */
	struct vrf *vrf;

	/* Status of the routing instance. */
	bool enabled;

	/* RIPng socket. */
	int sock;

	/* RIPng Parameters.*/
	uint8_t command;
	uint8_t version;
	uint16_t update_time;
	uint16_t timeout_time;
	uint16_t garbage_time;
	int max_mtu;
	uint8_t default_metric;

	/* Input/output buffer of RIPng. */
	struct stream *ibuf;
	struct stream *obuf;

	/* RIPng routing information base. */
	struct agg_table *table;

	/* Linked list of RIPng peers. */
	struct list *peer_list;

	/* RIPng enabled interfaces. */
	vector enable_if;

	/* RIPng enabled networks. */
	struct agg_table *enable_network;

	/* Vector to store passive-interface name. */
	vector passive_interface;

	/* RIPng offset-lists. */
	struct list *offset_list_master;

	/* 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;

	/* RIPng ECMP flag */
	bool ecmp;

	/* RIPng redistribute configuration. */
	struct {
		bool enabled;
		struct {
			char *name;
			struct route_map *map;
		} route_map;
		bool metric_config;
		uint8_t metric;
	} redist[ZEBRA_ROUTE_MAX];

	/* For distribute-list container */
	struct distribute_ctx *distribute_ctx;

	/* For if_rmap container */
	struct if_rmap_ctx *if_rmap_ctx;
};
RB_HEAD(ripng_instance_head, ripng);
RB_PROTOTYPE(ripng_instance_head, ripng, entry, ripng_instance_compare)

/* Routing table entry. */
struct rte {
	struct in6_addr addr; /* RIPng destination prefix */
	uint16_t tag;	 /* RIPng tag */
	uint8_t prefixlen;    /* Length of the RIPng prefix */
	uint8_t metric;       /* Metric of the RIPng route */
			      /* The nexthop is stored by the structure
			       * ripng_nexthop within ripngd.c */
};

/* RIPNG send packet. */
struct ripng_packet {
	uint8_t command;
	uint8_t version;
	uint16_t zero;
	struct rte rte[1];
};

/* Each route's information. */
struct ripng_info {
	/* This route's type.  Static, ripng or aggregate. */
	uint8_t type;

	/* Sub type for static route. */
	uint8_t sub_type;

	/* RIPng specific information */
	struct in6_addr nexthop;
	struct in6_addr from;

	/* Which interface does this route come from. */
	ifindex_t ifindex;

	/* Metric of this route.  */
	uint8_t metric;

	/* Tag field of RIPng packet.*/
	uint16_t tag;

	/* For aggregation. */
	unsigned int suppress;

/* Flags of RIPng route. */
#define RIPNG_RTF_FIB      1
#define RIPNG_RTF_CHANGED  2
	uint8_t flags;

	/* Garbage collect timer. */
	struct thread *t_timeout;
	struct thread *t_garbage_collect;

	/* Route-map features - this variables can be changed. */
	struct in6_addr nexthop_out;
	uint8_t metric_set;
	uint8_t metric_out;
	uint16_t tag_out;

	struct agg_node *rp;
};

#ifdef notyet
#if 0
/* RIPng tag structure. */
struct ripng_tag
{
  /* Tag value. */
  uint16_t tag;

  /* Port. */
  uint16_t port;

  /* Multicast group. */
  struct in6_addr maddr;

  /* Table number. */
  int table;

  /* Distance. */
  int distance;

  /* Split horizon. */
  uint8_t split_horizon;

  /* Poison reverse. */
  uint8_t poison_reverse;
};
#endif /* 0 */
#endif /* not yet */

typedef enum {
	RIPNG_NO_SPLIT_HORIZON = 0,
	RIPNG_SPLIT_HORIZON,
	RIPNG_SPLIT_HORIZON_POISONED_REVERSE
} split_horizon_policy_t;

/* RIPng specific interface configuration. */
struct ripng_interface {
	/* Parent routing instance. */
	struct ripng *ripng;

	/* RIPng is enabled on this interface. */
	int enable_network;
	int enable_interface;

	/* RIPng is running on this interface. */
	int running;

	/* Split horizon flag. */
	split_horizon_policy_t split_horizon;

/* 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];

#ifdef notyet
#if 0
  /* RIPng tag configuration. */
  struct ripng_tag *rtag;
#endif /* 0 */
#endif /* notyet */

	/* Default information originate. */
	uint8_t default_originate;

	/* Default information only. */
	uint8_t default_only;

	/* Wake up thread. */
	struct thread *t_wakeup;

	/* Passive interface. */
	int passive;
};

/* RIPng peer information. */
struct ripng_peer {
	/* Parent routing instance. */
	struct ripng *ripng;

	/* Peer address. */
	struct in6_addr addr;

	/* Peer RIPng tag value. */
	int domain;

	/* Last update time. */
	time_t uptime;

	/* Peer RIP version. */
	uint8_t version;

	/* Statistics. */
	int recv_badpackets;
	int recv_badroutes;

	/* Timeout thread. */
	struct thread *t_timeout;
};

/* 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) thread_add_timer (master, (F), rinfo, (V), &(T))

#define RIPNG_TIMER_OFF(T)                                                     \
	do {                                                                   \
		if (T) {                                                       \
			thread_cancel(T);                                      \
			(T) = NULL;                                            \
		}                                                              \
	} while (0)

#define RIPNG_OFFSET_LIST_IN  0
#define RIPNG_OFFSET_LIST_OUT 1
#define RIPNG_OFFSET_LIST_MAX 2

struct ripng_offset_list {
	/* Parent routing instance. */
	struct ripng *ripng;

	char *ifname;

	struct {
		char *alist_name;
		/* struct access_list *alist; */
		uint8_t metric;
	} direct[RIPNG_OFFSET_LIST_MAX];
};

/* Extern variables. */
extern struct zebra_privs_t ripngd_privs;
extern struct thread_master *master;
extern struct ripng_instance_head ripng_instances;

/* Prototypes. */
extern void ripng_init(void);
extern void ripng_clean(struct ripng *ripng);
extern void ripng_clean_network(struct ripng *ripng);
extern void ripng_interface_clean(struct ripng *ripng);
extern int ripng_enable_network_add(struct ripng *ripng, struct prefix *p);
extern int ripng_enable_network_delete(struct ripng *ripng, struct prefix *p);
extern int ripng_enable_if_add(struct ripng *ripng, const char *ifname);
extern int ripng_enable_if_delete(struct ripng *ripng, const char *ifname);
extern int ripng_passive_interface_set(struct ripng *ripng, const char *ifname);
extern int ripng_passive_interface_unset(struct ripng *ripng,
					 const char *ifname);
extern void ripng_passive_interface_clean(struct ripng *ripng);
extern void ripng_if_init(void);
extern void ripng_route_map_init(void);
extern void ripng_zebra_vrf_register(struct vrf *vrf);
extern void ripng_zebra_vrf_deregister(struct vrf *vrf);
extern void ripng_terminate(void);
/* zclient_init() is done by ripng_zebra.c:zebra_init() */
extern void zebra_init(struct thread_master *);
extern void ripng_zebra_stop(void);
extern void ripng_redistribute_conf_update(struct ripng *ripng, int type);
extern void ripng_redistribute_conf_delete(struct ripng *ripng, int type);

extern void ripng_peer_update(struct ripng *ripng, struct sockaddr_in6 *from,
			      uint8_t version);
extern void ripng_peer_bad_route(struct ripng *ripng,
				 struct sockaddr_in6 *from);
extern void ripng_peer_bad_packet(struct ripng *ripng,
				  struct sockaddr_in6 *from);
extern void ripng_peer_display(struct vty *vty, struct ripng *ripng);
extern struct ripng_peer *ripng_peer_lookup(struct ripng *ripng,
					    struct in6_addr *addr);
extern struct ripng_peer *ripng_peer_lookup_next(struct ripng *ripng,
						 struct in6_addr *addr);
extern int ripng_peer_list_cmp(struct ripng_peer *p1, struct ripng_peer *p2);
extern void ripng_peer_list_del(void *arg);

extern struct ripng_offset_list *ripng_offset_list_new(struct ripng *ripng,
						       const char *ifname);
extern void ripng_offset_list_del(struct ripng_offset_list *offset);
extern void ripng_offset_list_free(struct ripng_offset_list *offset);
extern struct ripng_offset_list *ripng_offset_list_lookup(struct ripng *ripng,
							  const char *ifname);
extern int ripng_offset_list_apply_in(struct ripng *ripng,
				      struct prefix_ipv6 *p,
				      struct interface *ifp, uint8_t *metric);
extern int ripng_offset_list_apply_out(struct ripng *ripng,
				       struct prefix_ipv6 *p,
				       struct interface *ifp, uint8_t *metric);
extern int offset_list_cmp(struct ripng_offset_list *o1,
			   struct ripng_offset_list *o2);

extern int ripng_route_rte(struct ripng_info *rinfo);
extern struct ripng_info *ripng_info_new(void);
extern void ripng_info_free(struct ripng_info *rinfo);
extern struct ripng *ripng_info_get_instance(const struct ripng_info *rinfo);
extern void ripng_event(struct ripng *ripng, enum ripng_event event, int sock);
extern int ripng_request(struct interface *ifp);
extern void ripng_redistribute_add(struct ripng *ripng, int type, int sub_type,
				   struct prefix_ipv6 *p, ifindex_t ifindex,
				   struct in6_addr *nexthop, route_tag_t tag);
extern void ripng_redistribute_delete(struct ripng *ripng, int type,
				      int sub_type, struct prefix_ipv6 *p,
				      ifindex_t ifindex);
extern void ripng_redistribute_withdraw(struct ripng *ripng, int type);

extern void ripng_ecmp_disable(struct ripng *ripng);
extern void ripng_distribute_update_interface(struct interface *);
extern void ripng_if_rmap_update_interface(struct interface *);

extern void ripng_zebra_ipv6_add(struct ripng *ripng, struct agg_node *node);
extern void ripng_zebra_ipv6_delete(struct ripng *ripng, struct agg_node *node);

extern void ripng_redistribute_enable(struct ripng *ripng);
extern void ripng_redistribute_disable(struct ripng *ripng);
extern int ripng_redistribute_check(struct ripng *ripng, int type);
extern void ripng_redistribute_write(struct vty *vty, struct ripng *ripng);

extern int ripng_write_rte(int num, struct stream *s, struct prefix_ipv6 *p,
			   struct in6_addr *nexthop, uint16_t tag,
			   uint8_t metric);
extern int ripng_send_packet(caddr_t buf, int bufsize, struct sockaddr_in6 *to,
			     struct interface *ifp);

extern void ripng_packet_dump(struct ripng_packet *packet, int size,
			      const char *sndrcv);

extern int ripng_interface_up(ZAPI_CALLBACK_ARGS);
extern int ripng_interface_down(ZAPI_CALLBACK_ARGS);
extern int ripng_interface_add(ZAPI_CALLBACK_ARGS);
extern int ripng_interface_delete(ZAPI_CALLBACK_ARGS);
extern int ripng_interface_address_add(ZAPI_CALLBACK_ARGS);
extern int ripng_interface_address_delete(ZAPI_CALLBACK_ARGS);
extern int ripng_interface_vrf_update(ZAPI_CALLBACK_ARGS);
extern void ripng_interface_sync(struct interface *ifp);

extern struct ripng *ripng_lookup_by_vrf_id(vrf_id_t vrf_id);
extern struct ripng *ripng_lookup_by_vrf_name(const char *vrf_name);
extern struct ripng *ripng_create(const char *vrf_name, struct vrf *vrf,
				  int socket);
extern int ripng_make_socket(struct vrf *vrf);
extern int ripng_network_write(struct vty *vty, struct ripng *ripng);

extern struct ripng_info *ripng_ecmp_add(struct ripng *ripng,
					 struct ripng_info *rinfo);
extern struct ripng_info *ripng_ecmp_replace(struct ripng *ripng,
					     struct ripng_info *rinfo);
extern struct ripng_info *ripng_ecmp_delete(struct ripng *ripng,
					    struct ripng_info *rinfo);

extern void ripng_vrf_init(void);
extern void ripng_vrf_terminate(void);
extern void ripng_cli_init(void);

#endif /* _ZEBRA_RIPNG_RIPNGD_H */
Commit	Line	Data
718e3744	1	/*
	2	* RIPng related value and structure.
	3	* Copyright (C) 1998 Kunihiro Ishiguro
	4	*
	5	* This file is part of GNU Zebra.
	6	*
	7	* GNU Zebra is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2, or (at your option) any
	10	* later version.
	11	*
	12	* GNU Zebra is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
896014f4 DL	17	* You should have received a copy of the GNU General Public License along
	18	* with this program; see the file COPYING; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
718e3744	20	*/
	21
	22	#ifndef _ZEBRA_RIPNG_RIPNGD_H
	23	#define _ZEBRA_RIPNG_RIPNGD_H
	24
6ac29a51 PJ	25	#include <zclient.h>
6ac29a51 PJ	26	#include <vty.h>
03a38493	27	#include <distribute.h>
b0ba762f	28	#include <vector.h>
b3a7e30d	29	#include <memory.h>
4a1ab8e4	30
718e3744	31	/* RIPng version and port number. */
	32	#define RIPNG_V1 1
	33	#define RIPNG_PORT_DEFAULT 521
	34	#define RIPNG_VTY_PORT 2603
718e3744	35	#define RIPNG_MAX_PACKET_SIZE 1500
	36	#define RIPNG_PRIORITY_DEFAULT 0
	37
	38	/* RIPng commands. */
	39	#define RIPNG_REQUEST 1
	40	#define RIPNG_RESPONSE 2
	41
	42	/* RIPng metric and multicast group address. */
	43	#define RIPNG_METRIC_INFINITY 16
	44	#define RIPNG_METRIC_NEXTHOP 0xff
	45	#define RIPNG_GROUP "ff02::9"
	46
a94434b6	47	/* RIPng peer timeout value. */
	48	#define RIPNG_PEER_TIMER_DEFAULT 180
	49
718e3744	50	/* Default config file name. */
	51	#define RIPNG_DEFAULT_CONFIG "ripngd.conf"
	52
	53	/* RIPng route types. */
	54	#define RIPNG_ROUTE_RTE 0
	55	#define RIPNG_ROUTE_STATIC 1
a94434b6	56	#define RIPNG_ROUTE_DEFAULT 2
	57	#define RIPNG_ROUTE_REDISTRIBUTE 3
	58	#define RIPNG_ROUTE_INTERFACE 4
	59	#define RIPNG_ROUTE_AGGREGATE 5
718e3744	60
	61	/* Interface send/receive configuration. */
	62	#define RIPNG_SEND_UNSPEC 0
	63	#define RIPNG_SEND_OFF 1
	64	#define RIPNG_RECEIVE_UNSPEC 0
	65	#define RIPNG_RECEIVE_OFF 1
	66
718e3744	67	/* RIP default route's accept/announce methods. */
	68	#define RIPNG_DEFAULT_ADVERTISE_UNSPEC 0
	69	#define RIPNG_DEFAULT_ADVERTISE_NONE 1
	70	#define RIPNG_DEFAULT_ADVERTISE 2
	71
	72	#define RIPNG_DEFAULT_ACCEPT_UNSPEC 0
	73	#define RIPNG_DEFAULT_ACCEPT_NONE 1
	74	#define RIPNG_DEFAULT_ACCEPT 2
	75
718e3744	76	/* For max RTE calculation. */
	77	#ifndef IPV6_HDRLEN
	78	#define IPV6_HDRLEN 40
	79	#endif /* IPV6_HDRLEN */
	80
	81	#ifndef IFMINMTU
	82	#define IFMINMTU 576
	83	#endif /* IFMINMTU */
	84
e9ce224b RW	85	/* YANG paths */
	86	#define RIPNG_INSTANCE "/frr-ripngd:ripngd/instance"
	87	#define RIPNG_IFACE "/frr-interface:lib/interface/frr-ripngd:ripng"
	88
b3a7e30d DL	89	DECLARE_MGROUP(RIPNGD)
b3a7e30d DL	90
718e3744	91	/* RIPng structure. */
d62a17ae	92	struct ripng {
dde7b15b RW	93	RB_ENTRY(ripng) entry;
	94
	95	/* VRF this routing instance is associated with. */
	96	char *vrf_name;
	97
	98	/* VRF backpointer (might be NULL if the VRF doesn't exist). */
	99	struct vrf *vrf;
	100
	101	/* Status of the routing instance. */
	102	bool enabled;
5c84b9a5	103
d62a17ae	104	/* RIPng socket. */
	105	int sock;
	106
	107	/* RIPng Parameters.*/
d7c0a89a QY	108	uint8_t command;
d7c0a89a QY	109	uint8_t version;
f8981ec5 RW	110	uint16_t update_time;
	111	uint16_t timeout_time;
	112	uint16_t garbage_time;
d62a17ae	113	int max_mtu;
ad8778c0	114	uint8_t default_metric;
d62a17ae	115
	116	/* Input/output buffer of RIPng. */
	117	struct stream *ibuf;
	118	struct stream *obuf;
	119
	120	/* RIPng routing information base. */
fe08ba7e	121	struct agg_table *table;
d62a17ae	122
ecece94c RW	123	/* Linked list of RIPng peers. */
	124	struct list *peer_list;
	125
b0ba762f RW	126	/* RIPng enabled interfaces. */
	127	vector enable_if;
	128
29b94d58 RW	129	/* RIPng enabled networks. */
	130	struct agg_table *enable_network;
	131
0c32404f RW	132	/* Vector to store passive-interface name. */
	133	vector passive_interface;
	134
26c6be93 RW	135	/* RIPng offset-lists. */
	136	struct list *offset_list_master;
	137
d62a17ae	138	/* RIPng threads. */
	139	struct thread *t_read;
	140	struct thread *t_write;
	141	struct thread *t_update;
	142	struct thread *t_garbage;
	143	struct thread *t_zebra;
	144
	145	/* Triggered update hack. */
	146	int trigger;
	147	struct thread *t_triggered_update;
	148	struct thread *t_triggered_interval;
	149
	150	/* RIPng ECMP flag */
1e42a07c	151	bool ecmp;
d62a17ae	152
f9120f71	153	/* RIPng redistribute configuration. */
d62a17ae	154	struct {
f9120f71 RW	155	bool enabled;
	156	struct {
	157	char *name;
	158	struct route_map *map;
	159	} route_map;
db2038c7 RW	160	bool metric_config;
db2038c7 RW	161	uint8_t metric;
f9120f71	162	} redist[ZEBRA_ROUTE_MAX];
03a38493 PG	163
	164	/* For distribute-list container */
	165	struct distribute_ctx *distribute_ctx;
4b23867c PG	166
	167	/* For if_rmap container */
	168	struct if_rmap_ctx *if_rmap_ctx;
718e3744	169	};
dde7b15b RW	170	RB_HEAD(ripng_instance_head, ripng);
dde7b15b RW	171	RB_PROTOTYPE(ripng_instance_head, ripng, entry, ripng_instance_compare)
718e3744	172
718e3744	173	/* Routing table entry. */
d62a17ae	174	struct rte {
d62a17ae	175	struct in6_addr addr; /* RIPng destination prefix */
d7c0a89a QY	176	uint16_t tag; /* RIPng tag */
	177	uint8_t prefixlen; /* Length of the RIPng prefix */
	178	uint8_t metric; /* Metric of the RIPng route */
d62a17ae	179	/* The nexthop is stored by the structure
d62a17ae	180	* ripng_nexthop within ripngd.c */
718e3744	181	};
	182
	183	/* RIPNG send packet. */
d62a17ae	184	struct ripng_packet {
d7c0a89a QY	185	uint8_t command;
	186	uint8_t version;
	187	uint16_t zero;
d62a17ae	188	struct rte rte[1];
718e3744	189	};
	190
	191	/* Each route's information. */
d62a17ae	192	struct ripng_info {
d62a17ae	193	/* This route's type. Static, ripng or aggregate. */
d7c0a89a	194	uint8_t type;
718e3744	195
d62a17ae	196	/* Sub type for static route. */
d7c0a89a	197	uint8_t sub_type;
718e3744	198
d62a17ae	199	/* RIPng specific information */
	200	struct in6_addr nexthop;
	201	struct in6_addr from;
718e3744	202
d62a17ae	203	/* Which interface does this route come from. */
d62a17ae	204	ifindex_t ifindex;
718e3744	205
d62a17ae	206	/* Metric of this route. */
d7c0a89a	207	uint8_t metric;
718e3744	208
d62a17ae	209	/* Tag field of RIPng packet.*/
d7c0a89a	210	uint16_t tag;
718e3744	211
d62a17ae	212	/* For aggregation. */
d62a17ae	213	unsigned int suppress;
718e3744	214
d62a17ae	215	/* Flags of RIPng route. */
718e3744	216	#define RIPNG_RTF_FIB 1
718e3744	217	#define RIPNG_RTF_CHANGED 2
d7c0a89a	218	uint8_t flags;
718e3744	219
d62a17ae	220	/* Garbage collect timer. */
	221	struct thread *t_timeout;
	222	struct thread *t_garbage_collect;
718e3744	223
d62a17ae	224	/* Route-map features - this variables can be changed. */
d62a17ae	225	struct in6_addr nexthop_out;
d7c0a89a QY	226	uint8_t metric_set;
	227	uint8_t metric_out;
	228	uint16_t tag_out;
718e3744	229
fe08ba7e	230	struct agg_node *rp;
718e3744	231	};
718e3744	232
a94434b6	233	#ifdef notyet
a94434b6	234	#if 0
718e3744	235	/* RIPng tag structure. */
	236	struct ripng_tag
	237	{
	238	/* Tag value. */
d7c0a89a	239	uint16_t tag;
718e3744	240
718e3744	241	/* Port. */
d7c0a89a	242	uint16_t port;
718e3744	243
	244	/* Multicast group. */
	245	struct in6_addr maddr;
	246
	247	/* Table number. */
	248	int table;
	249
	250	/* Distance. */
	251	int distance;
	252
	253	/* Split horizon. */
d7c0a89a	254	uint8_t split_horizon;
718e3744	255
718e3744	256	/* Poison reverse. */
d7c0a89a	257	uint8_t poison_reverse;
718e3744	258	};
a94434b6	259	#endif /* 0 */
	260	#endif /* not yet */
	261
	262	typedef enum {
d62a17ae	263	RIPNG_NO_SPLIT_HORIZON = 0,
	264	RIPNG_SPLIT_HORIZON,
	265	RIPNG_SPLIT_HORIZON_POISONED_REVERSE
a94434b6	266	} split_horizon_policy_t;
718e3744	267
718e3744	268	/* RIPng specific interface configuration. */
d62a17ae	269	struct ripng_interface {
5c84b9a5 RW	270	/* Parent routing instance. */
	271	struct ripng *ripng;
	272
d62a17ae	273	/* RIPng is enabled on this interface. */
	274	int enable_network;
	275	int enable_interface;
	276
	277	/* RIPng is running on this interface. */
	278	int running;
	279
	280	/* Split horizon flag. */
	281	split_horizon_policy_t split_horizon;
d62a17ae	282
d62a17ae	283	/* For filter type slot. */
718e3744	284	#define RIPNG_FILTER_IN 0
	285	#define RIPNG_FILTER_OUT 1
	286	#define RIPNG_FILTER_MAX 2
	287
d62a17ae	288	/* Access-list. */
d62a17ae	289	struct access_list *list[RIPNG_FILTER_MAX];
718e3744	290
d62a17ae	291	/* Prefix-list. */
d62a17ae	292	struct prefix_list *prefix[RIPNG_FILTER_MAX];
718e3744	293
d62a17ae	294	/* Route-map. */
d62a17ae	295	struct route_map *routemap[RIPNG_FILTER_MAX];
718e3744	296
a94434b6	297	#ifdef notyet
a94434b6	298	#if 0
718e3744	299	/* RIPng tag configuration. */
718e3744	300	struct ripng_tag *rtag;
a94434b6	301	#endif /* 0 */
a94434b6	302	#endif /* notyet */
718e3744	303
d62a17ae	304	/* Default information originate. */
d7c0a89a	305	uint8_t default_originate;
718e3744	306
d62a17ae	307	/* Default information only. */
d7c0a89a	308	uint8_t default_only;
718e3744	309
d62a17ae	310	/* Wake up thread. */
d62a17ae	311	struct thread *t_wakeup;
718e3744	312
d62a17ae	313	/* Passive interface. */
d62a17ae	314	int passive;
718e3744	315	};
718e3744	316
a94434b6	317	/* RIPng peer information. */
d62a17ae	318	struct ripng_peer {
5c84b9a5 RW	319	/* Parent routing instance. */
	320	struct ripng *ripng;
	321
d62a17ae	322	/* Peer address. */
d62a17ae	323	struct in6_addr addr;
a94434b6	324
d62a17ae	325	/* Peer RIPng tag value. */
d62a17ae	326	int domain;
a94434b6	327
d62a17ae	328	/* Last update time. */
d62a17ae	329	time_t uptime;
a94434b6	330
d62a17ae	331	/* Peer RIP version. */
d7c0a89a	332	uint8_t version;
a94434b6	333
d62a17ae	334	/* Statistics. */
	335	int recv_badpackets;
	336	int recv_badroutes;
a94434b6	337
d62a17ae	338	/* Timeout thread. */
d62a17ae	339	struct thread *t_timeout;
a94434b6	340	};
a94434b6	341
718e3744	342	/* All RIPng events. */
d62a17ae	343	enum ripng_event {
	344	RIPNG_READ,
	345	RIPNG_ZEBRA,
	346	RIPNG_REQUEST_EVENT,
	347	RIPNG_UPDATE_EVENT,
	348	RIPNG_TRIGGERED_UPDATE,
718e3744	349	};
	350
	351	/* RIPng timer on/off macro. */
ffa2c898	352	#define RIPNG_TIMER_ON(T,F,V) thread_add_timer (master, (F), rinfo, (V), &(T))
718e3744	353
d62a17ae	354	#define RIPNG_TIMER_OFF(T) \
	355	do { \
	356	if (T) { \
	357	thread_cancel(T); \
	358	(T) = NULL; \
	359	} \
	360	} while (0)
718e3744	361
b09956ca RW	362	#define RIPNG_OFFSET_LIST_IN 0
	363	#define RIPNG_OFFSET_LIST_OUT 1
	364	#define RIPNG_OFFSET_LIST_MAX 2
	365
	366	struct ripng_offset_list {
5c84b9a5 RW	367	/* Parent routing instance. */
	368	struct ripng *ripng;
	369
b09956ca RW	370	char *ifname;
	371
	372	struct {
	373	char *alist_name;
	374	/* struct access_list alist; /
	375	uint8_t metric;
	376	} direct[RIPNG_OFFSET_LIST_MAX];
	377	};
	378
718e3744	379	/* Extern variables. */
5cb6ce9c	380	extern struct zebra_privs_t ripngd_privs;
718e3744	381	extern struct thread_master *master;
80cf4e45	382	extern struct ripng_instance_head ripng_instances;
718e3744	383
718e3744	384	/* Prototypes. */
d62a17ae	385	extern void ripng_init(void);
5c84b9a5 RW	386	extern void ripng_clean(struct ripng *ripng);
	387	extern void ripng_clean_network(struct ripng *ripng);
	388	extern void ripng_interface_clean(struct ripng *ripng);
	389	extern int ripng_enable_network_add(struct ripng ripng, struct prefix p);
	390	extern int ripng_enable_network_delete(struct ripng ripng, struct prefix p);
	391	extern int ripng_enable_if_add(struct ripng ripng, const char ifname);
	392	extern int ripng_enable_if_delete(struct ripng ripng, const char ifname);
	393	extern int ripng_passive_interface_set(struct ripng ripng, const char ifname);
	394	extern int ripng_passive_interface_unset(struct ripng *ripng,
	395	const char *ifname);
	396	extern void ripng_passive_interface_clean(struct ripng *ripng);
d62a17ae	397	extern void ripng_if_init(void);
d62a17ae	398	extern void ripng_route_map_init(void);
dde7b15b RW	399	extern void ripng_zebra_vrf_register(struct vrf *vrf);
dde7b15b RW	400	extern void ripng_zebra_vrf_deregister(struct vrf *vrf);
d62a17ae	401	extern void ripng_terminate(void);
d62a17ae	402	/* zclient_init() is done by ripng_zebra.c:zebra_init() */
4140ca4d	403	extern void zebra_init(struct thread_master *);
d62a17ae	404	extern void ripng_zebra_stop(void);
5c84b9a5 RW	405	extern void ripng_redistribute_conf_update(struct ripng *ripng, int type);
	406	extern void ripng_redistribute_conf_delete(struct ripng *ripng, int type);
	407
	408	extern void ripng_peer_update(struct ripng ripng, struct sockaddr_in6 from,
	409	uint8_t version);
	410	extern void ripng_peer_bad_route(struct ripng *ripng,
	411	struct sockaddr_in6 *from);
	412	extern void ripng_peer_bad_packet(struct ripng *ripng,
	413	struct sockaddr_in6 *from);
	414	extern void ripng_peer_display(struct vty vty, struct ripng ripng);
	415	extern struct ripng_peer ripng_peer_lookup(struct ripng ripng,
	416	struct in6_addr *addr);
	417	extern struct ripng_peer ripng_peer_lookup_next(struct ripng ripng,
	418	struct in6_addr *addr);
ecece94c	419	extern int ripng_peer_list_cmp(struct ripng_peer p1, struct ripng_peer p2);
56bf1cb2	420	extern void ripng_peer_list_del(void *arg);
d62a17ae	421
5c84b9a5 RW	422	extern struct ripng_offset_list ripng_offset_list_new(struct ripng ripng,
5c84b9a5 RW	423	const char *ifname);
b09956ca	424	extern void ripng_offset_list_del(struct ripng_offset_list *offset);
6c4c3561	425	extern void ripng_offset_list_free(struct ripng_offset_list *offset);
5c84b9a5 RW	426	extern struct ripng_offset_list ripng_offset_list_lookup(struct ripng ripng,
	427	const char *ifname);
	428	extern int ripng_offset_list_apply_in(struct ripng *ripng,
	429	struct prefix_ipv6 *p,
	430	struct interface ifp, uint8_t metric);
	431	extern int ripng_offset_list_apply_out(struct ripng *ripng,
	432	struct prefix_ipv6 *p,
	433	struct interface ifp, uint8_t metric);
26c6be93 RW	434	extern int offset_list_cmp(struct ripng_offset_list *o1,
26c6be93 RW	435	struct ripng_offset_list *o2);
d62a17ae	436
49e06d25	437	extern int ripng_route_rte(struct ripng_info *rinfo);
d62a17ae	438	extern struct ripng_info *ripng_info_new(void);
d62a17ae	439	extern void ripng_info_free(struct ripng_info *rinfo);
5c84b9a5 RW	440	extern struct ripng ripng_info_get_instance(const struct ripng_info rinfo);
5c84b9a5 RW	441	extern void ripng_event(struct ripng *ripng, enum ripng_event event, int sock);
d62a17ae	442	extern int ripng_request(struct interface *ifp);
5c84b9a5 RW	443	extern void ripng_redistribute_add(struct ripng *ripng, int type, int sub_type,
	444	struct prefix_ipv6 *p, ifindex_t ifindex,
	445	struct in6_addr *nexthop, route_tag_t tag);
	446	extern void ripng_redistribute_delete(struct ripng *ripng, int type,
	447	int sub_type, struct prefix_ipv6 *p,
	448	ifindex_t ifindex);
	449	extern void ripng_redistribute_withdraw(struct ripng *ripng, int type);
	450
	451	extern void ripng_ecmp_disable(struct ripng *ripng);
d62a17ae	452	extern void ripng_distribute_update_interface(struct interface *);
	453	extern void ripng_if_rmap_update_interface(struct interface *);
	454
5c84b9a5 RW	455	extern void ripng_zebra_ipv6_add(struct ripng ripng, struct agg_node node);
5c84b9a5 RW	456	extern void ripng_zebra_ipv6_delete(struct ripng ripng, struct agg_node node);
d62a17ae	457
f9120f71 RW	458	extern void ripng_redistribute_enable(struct ripng *ripng);
f9120f71 RW	459	extern void ripng_redistribute_disable(struct ripng *ripng);
5c84b9a5 RW	460	extern int ripng_redistribute_check(struct ripng *ripng, int type);
5c84b9a5 RW	461	extern void ripng_redistribute_write(struct vty vty, struct ripng ripng);
d62a17ae	462
d62a17ae	463	extern int ripng_write_rte(int num, struct stream s, struct prefix_ipv6 p,
d7c0a89a QY	464	struct in6_addr *nexthop, uint16_t tag,
d7c0a89a QY	465	uint8_t metric);
d62a17ae	466	extern int ripng_send_packet(caddr_t buf, int bufsize, struct sockaddr_in6 *to,
	467	struct interface *ifp);
	468
	469	extern void ripng_packet_dump(struct ripng_packet *packet, int size,
	470	const char *sndrcv);
	471
121f9dee QY	472	extern int ripng_interface_up(ZAPI_CALLBACK_ARGS);
	473	extern int ripng_interface_down(ZAPI_CALLBACK_ARGS);
	474	extern int ripng_interface_add(ZAPI_CALLBACK_ARGS);
	475	extern int ripng_interface_delete(ZAPI_CALLBACK_ARGS);
	476	extern int ripng_interface_address_add(ZAPI_CALLBACK_ARGS);
	477	extern int ripng_interface_address_delete(ZAPI_CALLBACK_ARGS);
	478	extern int ripng_interface_vrf_update(ZAPI_CALLBACK_ARGS);
dde7b15b	479	extern void ripng_interface_sync(struct interface *ifp);
d62a17ae	480
5c84b9a5	481	extern struct ripng *ripng_lookup_by_vrf_id(vrf_id_t vrf_id);
dde7b15b RW	482	extern struct ripng ripng_lookup_by_vrf_name(const char vrf_name);
	483	extern struct ripng ripng_create(const char vrf_name, struct vrf *vrf,
	484	int socket);
	485	extern int ripng_make_socket(struct vrf *vrf);
5c84b9a5 RW	486	extern int ripng_network_write(struct vty vty, struct ripng ripng);
	487
	488	extern struct ripng_info ripng_ecmp_add(struct ripng ripng,
	489	struct ripng_info *rinfo);
	490	extern struct ripng_info ripng_ecmp_replace(struct ripng ripng,
	491	struct ripng_info *rinfo);
	492	extern struct ripng_info ripng_ecmp_delete(struct ripng ripng,
	493	struct ripng_info *rinfo);
c880b636	494
dde7b15b RW	495	extern void ripng_vrf_init(void);
dde7b15b RW	496	extern void ripng_vrf_terminate(void);
e9ce224b	497	extern void ripng_cli_init(void);
e9ce224b	498
718e3744	499	#endif /* _ZEBRA_RIPNG_RIPNGD_H */