[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 "ripng_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"

/* 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);

/* Northbound. */
extern void ripng_cli_init(void);
extern const struct frr_yang_module_info frr_ripngd_info;

#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>
6ac29a51	29
4a1ab8e4 DL	30	#include "ripng_memory.h"
4a1ab8e4 DL	31
718e3744	32	/* RIPng version and port number. */
	33	#define RIPNG_V1 1
	34	#define RIPNG_PORT_DEFAULT 521
	35	#define RIPNG_VTY_PORT 2603
718e3744	36	#define RIPNG_MAX_PACKET_SIZE 1500
	37	#define RIPNG_PRIORITY_DEFAULT 0
	38
	39	/* RIPng commands. */
	40	#define RIPNG_REQUEST 1
	41	#define RIPNG_RESPONSE 2
	42
	43	/* RIPng metric and multicast group address. */
	44	#define RIPNG_METRIC_INFINITY 16
	45	#define RIPNG_METRIC_NEXTHOP 0xff
	46	#define RIPNG_GROUP "ff02::9"
	47
a94434b6	48	/* RIPng peer timeout value. */
	49	#define RIPNG_PEER_TIMER_DEFAULT 180
	50
718e3744	51	/* Default config file name. */
	52	#define RIPNG_DEFAULT_CONFIG "ripngd.conf"
	53
	54	/* RIPng route types. */
	55	#define RIPNG_ROUTE_RTE 0
	56	#define RIPNG_ROUTE_STATIC 1
a94434b6	57	#define RIPNG_ROUTE_DEFAULT 2
	58	#define RIPNG_ROUTE_REDISTRIBUTE 3
	59	#define RIPNG_ROUTE_INTERFACE 4
	60	#define RIPNG_ROUTE_AGGREGATE 5
718e3744	61
	62	/* Interface send/receive configuration. */
	63	#define RIPNG_SEND_UNSPEC 0
	64	#define RIPNG_SEND_OFF 1
	65	#define RIPNG_RECEIVE_UNSPEC 0
	66	#define RIPNG_RECEIVE_OFF 1
	67
718e3744	68	/* RIP default route's accept/announce methods. */
	69	#define RIPNG_DEFAULT_ADVERTISE_UNSPEC 0
	70	#define RIPNG_DEFAULT_ADVERTISE_NONE 1
	71	#define RIPNG_DEFAULT_ADVERTISE 2
	72
	73	#define RIPNG_DEFAULT_ACCEPT_UNSPEC 0
	74	#define RIPNG_DEFAULT_ACCEPT_NONE 1
	75	#define RIPNG_DEFAULT_ACCEPT 2
	76
718e3744	77	/* For max RTE calculation. */
	78	#ifndef IPV6_HDRLEN
	79	#define IPV6_HDRLEN 40
	80	#endif /* IPV6_HDRLEN */
	81
	82	#ifndef IFMINMTU
	83	#define IFMINMTU 576
	84	#endif /* IFMINMTU */
	85
e9ce224b RW	86	/* YANG paths */
	87	#define RIPNG_INSTANCE "/frr-ripngd:ripngd/instance"
	88	#define RIPNG_IFACE "/frr-interface:lib/interface/frr-ripngd:ripng"
	89
718e3744	90	/* RIPng structure. */
d62a17ae	91	struct ripng {
dde7b15b RW	92	RB_ENTRY(ripng) entry;
	93
	94	/* VRF this routing instance is associated with. */
	95	char *vrf_name;
	96
	97	/* VRF backpointer (might be NULL if the VRF doesn't exist). */
	98	struct vrf *vrf;
	99
	100	/* Status of the routing instance. */
	101	bool enabled;
5c84b9a5	102
d62a17ae	103	/* RIPng socket. */
	104	int sock;
	105
	106	/* RIPng Parameters.*/
d7c0a89a QY	107	uint8_t command;
d7c0a89a QY	108	uint8_t version;
f8981ec5 RW	109	uint16_t update_time;
	110	uint16_t timeout_time;
	111	uint16_t garbage_time;
d62a17ae	112	int max_mtu;
ad8778c0	113	uint8_t default_metric;
d62a17ae	114
	115	/* Input/output buffer of RIPng. */
	116	struct stream *ibuf;
	117	struct stream *obuf;
	118
	119	/* RIPng routing information base. */
fe08ba7e	120	struct agg_table *table;
d62a17ae	121
ecece94c RW	122	/* Linked list of RIPng peers. */
	123	struct list *peer_list;
	124
b0ba762f RW	125	/* RIPng enabled interfaces. */
	126	vector enable_if;
	127
29b94d58 RW	128	/* RIPng enabled networks. */
	129	struct agg_table *enable_network;
	130
0c32404f RW	131	/* Vector to store passive-interface name. */
	132	vector passive_interface;
	133
26c6be93 RW	134	/* RIPng offset-lists. */
	135	struct list *offset_list_master;
	136
d62a17ae	137	/* RIPng threads. */
	138	struct thread *t_read;
	139	struct thread *t_write;
	140	struct thread *t_update;
	141	struct thread *t_garbage;
	142	struct thread *t_zebra;
	143
	144	/* Triggered update hack. */
	145	int trigger;
	146	struct thread *t_triggered_update;
	147	struct thread *t_triggered_interval;
	148
	149	/* RIPng ECMP flag */
1e42a07c	150	bool ecmp;
d62a17ae	151
f9120f71	152	/* RIPng redistribute configuration. */
d62a17ae	153	struct {
f9120f71 RW	154	bool enabled;
	155	struct {
	156	char *name;
	157	struct route_map *map;
	158	} route_map;
db2038c7 RW	159	bool metric_config;
db2038c7 RW	160	uint8_t metric;
f9120f71	161	} redist[ZEBRA_ROUTE_MAX];
03a38493 PG	162
	163	/* For distribute-list container */
	164	struct distribute_ctx *distribute_ctx;
4b23867c PG	165
	166	/* For if_rmap container */
	167	struct if_rmap_ctx *if_rmap_ctx;
718e3744	168	};
dde7b15b RW	169	RB_HEAD(ripng_instance_head, ripng);
dde7b15b RW	170	RB_PROTOTYPE(ripng_instance_head, ripng, entry, ripng_instance_compare)
718e3744	171
718e3744	172	/* Routing table entry. */
d62a17ae	173	struct rte {
d62a17ae	174	struct in6_addr addr; /* RIPng destination prefix */
d7c0a89a QY	175	uint16_t tag; /* RIPng tag */
	176	uint8_t prefixlen; /* Length of the RIPng prefix */
	177	uint8_t metric; /* Metric of the RIPng route */
d62a17ae	178	/* The nexthop is stored by the structure
d62a17ae	179	* ripng_nexthop within ripngd.c */
718e3744	180	};
	181
	182	/* RIPNG send packet. */
d62a17ae	183	struct ripng_packet {
d7c0a89a QY	184	uint8_t command;
	185	uint8_t version;
	186	uint16_t zero;
d62a17ae	187	struct rte rte[1];
718e3744	188	};
	189
	190	/* Each route's information. */
d62a17ae	191	struct ripng_info {
d62a17ae	192	/* This route's type. Static, ripng or aggregate. */
d7c0a89a	193	uint8_t type;
718e3744	194
d62a17ae	195	/* Sub type for static route. */
d7c0a89a	196	uint8_t sub_type;
718e3744	197
d62a17ae	198	/* RIPng specific information */
	199	struct in6_addr nexthop;
	200	struct in6_addr from;
718e3744	201
d62a17ae	202	/* Which interface does this route come from. */
d62a17ae	203	ifindex_t ifindex;
718e3744	204
d62a17ae	205	/* Metric of this route. */
d7c0a89a	206	uint8_t metric;
718e3744	207
d62a17ae	208	/* Tag field of RIPng packet.*/
d7c0a89a	209	uint16_t tag;
718e3744	210
d62a17ae	211	/* For aggregation. */
d62a17ae	212	unsigned int suppress;
718e3744	213
d62a17ae	214	/* Flags of RIPng route. */
718e3744	215	#define RIPNG_RTF_FIB 1
718e3744	216	#define RIPNG_RTF_CHANGED 2
d7c0a89a	217	uint8_t flags;
718e3744	218
d62a17ae	219	/* Garbage collect timer. */
	220	struct thread *t_timeout;
	221	struct thread *t_garbage_collect;
718e3744	222
d62a17ae	223	/* Route-map features - this variables can be changed. */
d62a17ae	224	struct in6_addr nexthop_out;
d7c0a89a QY	225	uint8_t metric_set;
	226	uint8_t metric_out;
	227	uint16_t tag_out;
718e3744	228
fe08ba7e	229	struct agg_node *rp;
718e3744	230	};
718e3744	231
a94434b6	232	#ifdef notyet
a94434b6	233	#if 0
718e3744	234	/* RIPng tag structure. */
	235	struct ripng_tag
	236	{
	237	/* Tag value. */
d7c0a89a	238	uint16_t tag;
718e3744	239
718e3744	240	/* Port. */
d7c0a89a	241	uint16_t port;
718e3744	242
	243	/* Multicast group. */
	244	struct in6_addr maddr;
	245
	246	/* Table number. */
	247	int table;
	248
	249	/* Distance. */
	250	int distance;
	251
	252	/* Split horizon. */
d7c0a89a	253	uint8_t split_horizon;
718e3744	254
718e3744	255	/* Poison reverse. */
d7c0a89a	256	uint8_t poison_reverse;
718e3744	257	};
a94434b6	258	#endif /* 0 */
	259	#endif /* not yet */
	260
	261	typedef enum {
d62a17ae	262	RIPNG_NO_SPLIT_HORIZON = 0,
	263	RIPNG_SPLIT_HORIZON,
	264	RIPNG_SPLIT_HORIZON_POISONED_REVERSE
a94434b6	265	} split_horizon_policy_t;
718e3744	266
718e3744	267	/* RIPng specific interface configuration. */
d62a17ae	268	struct ripng_interface {
5c84b9a5 RW	269	/* Parent routing instance. */
	270	struct ripng *ripng;
	271
d62a17ae	272	/* RIPng is enabled on this interface. */
	273	int enable_network;
	274	int enable_interface;
	275
	276	/* RIPng is running on this interface. */
	277	int running;
	278
	279	/* Split horizon flag. */
	280	split_horizon_policy_t split_horizon;
d62a17ae	281
d62a17ae	282	/* For filter type slot. */
718e3744	283	#define RIPNG_FILTER_IN 0
	284	#define RIPNG_FILTER_OUT 1
	285	#define RIPNG_FILTER_MAX 2
	286
d62a17ae	287	/* Access-list. */
d62a17ae	288	struct access_list *list[RIPNG_FILTER_MAX];
718e3744	289
d62a17ae	290	/* Prefix-list. */
d62a17ae	291	struct prefix_list *prefix[RIPNG_FILTER_MAX];
718e3744	292
d62a17ae	293	/* Route-map. */
d62a17ae	294	struct route_map *routemap[RIPNG_FILTER_MAX];
718e3744	295
a94434b6	296	#ifdef notyet
a94434b6	297	#if 0
718e3744	298	/* RIPng tag configuration. */
718e3744	299	struct ripng_tag *rtag;
a94434b6	300	#endif /* 0 */
a94434b6	301	#endif /* notyet */
718e3744	302
d62a17ae	303	/* Default information originate. */
d7c0a89a	304	uint8_t default_originate;
718e3744	305
d62a17ae	306	/* Default information only. */
d7c0a89a	307	uint8_t default_only;
718e3744	308
d62a17ae	309	/* Wake up thread. */
d62a17ae	310	struct thread *t_wakeup;
718e3744	311
d62a17ae	312	/* Passive interface. */
d62a17ae	313	int passive;
718e3744	314	};
718e3744	315
a94434b6	316	/* RIPng peer information. */
d62a17ae	317	struct ripng_peer {
5c84b9a5 RW	318	/* Parent routing instance. */
	319	struct ripng *ripng;
	320
d62a17ae	321	/* Peer address. */
d62a17ae	322	struct in6_addr addr;
a94434b6	323
d62a17ae	324	/* Peer RIPng tag value. */
d62a17ae	325	int domain;
a94434b6	326
d62a17ae	327	/* Last update time. */
d62a17ae	328	time_t uptime;
a94434b6	329
d62a17ae	330	/* Peer RIP version. */
d7c0a89a	331	uint8_t version;
a94434b6	332
d62a17ae	333	/* Statistics. */
	334	int recv_badpackets;
	335	int recv_badroutes;
a94434b6	336
d62a17ae	337	/* Timeout thread. */
d62a17ae	338	struct thread *t_timeout;
a94434b6	339	};
a94434b6	340
718e3744	341	/* All RIPng events. */
d62a17ae	342	enum ripng_event {
	343	RIPNG_READ,
	344	RIPNG_ZEBRA,
	345	RIPNG_REQUEST_EVENT,
	346	RIPNG_UPDATE_EVENT,
	347	RIPNG_TRIGGERED_UPDATE,
718e3744	348	};
	349
	350	/* RIPng timer on/off macro. */
ffa2c898	351	#define RIPNG_TIMER_ON(T,F,V) thread_add_timer (master, (F), rinfo, (V), &(T))
718e3744	352
d62a17ae	353	#define RIPNG_TIMER_OFF(T) \
	354	do { \
	355	if (T) { \
	356	thread_cancel(T); \
	357	(T) = NULL; \
	358	} \
	359	} while (0)
718e3744	360
b09956ca RW	361	#define RIPNG_OFFSET_LIST_IN 0
	362	#define RIPNG_OFFSET_LIST_OUT 1
	363	#define RIPNG_OFFSET_LIST_MAX 2
	364
	365	struct ripng_offset_list {
5c84b9a5 RW	366	/* Parent routing instance. */
	367	struct ripng *ripng;
	368
b09956ca RW	369	char *ifname;
	370
	371	struct {
	372	char *alist_name;
	373	/* struct access_list alist; /
	374	uint8_t metric;
	375	} direct[RIPNG_OFFSET_LIST_MAX];
	376	};
	377
718e3744	378	/* Extern variables. */
5cb6ce9c	379	extern struct zebra_privs_t ripngd_privs;
718e3744	380	extern struct thread_master *master;
80cf4e45	381	extern struct ripng_instance_head ripng_instances;
718e3744	382
718e3744	383	/* Prototypes. */
d62a17ae	384	extern void ripng_init(void);
5c84b9a5 RW	385	extern void ripng_clean(struct ripng *ripng);
	386	extern void ripng_clean_network(struct ripng *ripng);
	387	extern void ripng_interface_clean(struct ripng *ripng);
	388	extern int ripng_enable_network_add(struct ripng ripng, struct prefix p);
	389	extern int ripng_enable_network_delete(struct ripng ripng, struct prefix p);
	390	extern int ripng_enable_if_add(struct ripng ripng, const char ifname);
	391	extern int ripng_enable_if_delete(struct ripng ripng, const char ifname);
	392	extern int ripng_passive_interface_set(struct ripng ripng, const char ifname);
	393	extern int ripng_passive_interface_unset(struct ripng *ripng,
	394	const char *ifname);
	395	extern void ripng_passive_interface_clean(struct ripng *ripng);
d62a17ae	396	extern void ripng_if_init(void);
d62a17ae	397	extern void ripng_route_map_init(void);
dde7b15b RW	398	extern void ripng_zebra_vrf_register(struct vrf *vrf);
dde7b15b RW	399	extern void ripng_zebra_vrf_deregister(struct vrf *vrf);
d62a17ae	400	extern void ripng_terminate(void);
d62a17ae	401	/* zclient_init() is done by ripng_zebra.c:zebra_init() */
4140ca4d	402	extern void zebra_init(struct thread_master *);
d62a17ae	403	extern void ripng_zebra_stop(void);
5c84b9a5 RW	404	extern void ripng_redistribute_conf_update(struct ripng *ripng, int type);
	405	extern void ripng_redistribute_conf_delete(struct ripng *ripng, int type);
	406
	407	extern void ripng_peer_update(struct ripng ripng, struct sockaddr_in6 from,
	408	uint8_t version);
	409	extern void ripng_peer_bad_route(struct ripng *ripng,
	410	struct sockaddr_in6 *from);
	411	extern void ripng_peer_bad_packet(struct ripng *ripng,
	412	struct sockaddr_in6 *from);
	413	extern void ripng_peer_display(struct vty vty, struct ripng ripng);
	414	extern struct ripng_peer ripng_peer_lookup(struct ripng ripng,
	415	struct in6_addr *addr);
	416	extern struct ripng_peer ripng_peer_lookup_next(struct ripng ripng,
	417	struct in6_addr *addr);
ecece94c	418	extern int ripng_peer_list_cmp(struct ripng_peer p1, struct ripng_peer p2);
56bf1cb2	419	extern void ripng_peer_list_del(void *arg);
d62a17ae	420
5c84b9a5 RW	421	extern struct ripng_offset_list ripng_offset_list_new(struct ripng ripng,
5c84b9a5 RW	422	const char *ifname);
b09956ca	423	extern void ripng_offset_list_del(struct ripng_offset_list *offset);
6c4c3561	424	extern void ripng_offset_list_free(struct ripng_offset_list *offset);
5c84b9a5 RW	425	extern struct ripng_offset_list ripng_offset_list_lookup(struct ripng ripng,
	426	const char *ifname);
	427	extern int ripng_offset_list_apply_in(struct ripng *ripng,
	428	struct prefix_ipv6 *p,
	429	struct interface ifp, uint8_t metric);
	430	extern int ripng_offset_list_apply_out(struct ripng *ripng,
	431	struct prefix_ipv6 *p,
	432	struct interface ifp, uint8_t metric);
26c6be93 RW	433	extern int offset_list_cmp(struct ripng_offset_list *o1,
26c6be93 RW	434	struct ripng_offset_list *o2);
d62a17ae	435
49e06d25	436	extern int ripng_route_rte(struct ripng_info *rinfo);
d62a17ae	437	extern struct ripng_info *ripng_info_new(void);
d62a17ae	438	extern void ripng_info_free(struct ripng_info *rinfo);
5c84b9a5 RW	439	extern struct ripng ripng_info_get_instance(const struct ripng_info rinfo);
5c84b9a5 RW	440	extern void ripng_event(struct ripng *ripng, enum ripng_event event, int sock);
d62a17ae	441	extern int ripng_request(struct interface *ifp);
5c84b9a5 RW	442	extern void ripng_redistribute_add(struct ripng *ripng, int type, int sub_type,
	443	struct prefix_ipv6 *p, ifindex_t ifindex,
	444	struct in6_addr *nexthop, route_tag_t tag);
	445	extern void ripng_redistribute_delete(struct ripng *ripng, int type,
	446	int sub_type, struct prefix_ipv6 *p,
	447	ifindex_t ifindex);
	448	extern void ripng_redistribute_withdraw(struct ripng *ripng, int type);
	449
	450	extern void ripng_ecmp_disable(struct ripng *ripng);
d62a17ae	451	extern void ripng_distribute_update_interface(struct interface *);
	452	extern void ripng_if_rmap_update_interface(struct interface *);
	453
5c84b9a5 RW	454	extern void ripng_zebra_ipv6_add(struct ripng ripng, struct agg_node node);
5c84b9a5 RW	455	extern void ripng_zebra_ipv6_delete(struct ripng ripng, struct agg_node node);
d62a17ae	456
f9120f71 RW	457	extern void ripng_redistribute_enable(struct ripng *ripng);
f9120f71 RW	458	extern void ripng_redistribute_disable(struct ripng *ripng);
5c84b9a5 RW	459	extern int ripng_redistribute_check(struct ripng *ripng, int type);
5c84b9a5 RW	460	extern void ripng_redistribute_write(struct vty vty, struct ripng ripng);
d62a17ae	461
d62a17ae	462	extern int ripng_write_rte(int num, struct stream s, struct prefix_ipv6 p,
d7c0a89a QY	463	struct in6_addr *nexthop, uint16_t tag,
d7c0a89a QY	464	uint8_t metric);
d62a17ae	465	extern int ripng_send_packet(caddr_t buf, int bufsize, struct sockaddr_in6 *to,
	466	struct interface *ifp);
	467
	468	extern void ripng_packet_dump(struct ripng_packet *packet, int size,
	469	const char *sndrcv);
	470
121f9dee QY	471	extern int ripng_interface_up(ZAPI_CALLBACK_ARGS);
	472	extern int ripng_interface_down(ZAPI_CALLBACK_ARGS);
	473	extern int ripng_interface_add(ZAPI_CALLBACK_ARGS);
	474	extern int ripng_interface_delete(ZAPI_CALLBACK_ARGS);
	475	extern int ripng_interface_address_add(ZAPI_CALLBACK_ARGS);
	476	extern int ripng_interface_address_delete(ZAPI_CALLBACK_ARGS);
	477	extern int ripng_interface_vrf_update(ZAPI_CALLBACK_ARGS);
dde7b15b	478	extern void ripng_interface_sync(struct interface *ifp);
d62a17ae	479
5c84b9a5	480	extern struct ripng *ripng_lookup_by_vrf_id(vrf_id_t vrf_id);
dde7b15b RW	481	extern struct ripng ripng_lookup_by_vrf_name(const char vrf_name);
	482	extern struct ripng ripng_create(const char vrf_name, struct vrf *vrf,
	483	int socket);
	484	extern int ripng_make_socket(struct vrf *vrf);
5c84b9a5 RW	485	extern int ripng_network_write(struct vty vty, struct ripng ripng);
	486
	487	extern struct ripng_info ripng_ecmp_add(struct ripng ripng,
	488	struct ripng_info *rinfo);
	489	extern struct ripng_info ripng_ecmp_replace(struct ripng ripng,
	490	struct ripng_info *rinfo);
	491	extern struct ripng_info ripng_ecmp_delete(struct ripng ripng,
	492	struct ripng_info *rinfo);
c880b636	493
dde7b15b RW	494	extern void ripng_vrf_init(void);
	495	extern void ripng_vrf_terminate(void);
	496
e9ce224b RW	497	/* Northbound. */
	498	extern void ripng_cli_init(void);
	499	extern const struct frr_yang_module_info frr_ripngd_info;
	500
718e3744	501	#endif /* _ZEBRA_RIPNG_RIPNGD_H */