[mirror_frr.git] / ripd / ripd.h

/* RIP related values and structures.
 * Copyright (C) 1997, 1998, 1999 Kunihiro Ishiguro <kunihiro@zebra.org>
 *
 * 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_RIP_H
#define _ZEBRA_RIP_H

#include "qobj.h"
#include "hook.h"
#include "rip_memory.h"

/* RIP version number. */
#define RIPv1                            1
#define RIPv2                            2
/* N.B. stuff will break if
	(RIPv1 != RI_RIP_VERSION_1) || (RIPv2 != RI_RIP_VERSION_2) */


/* RIP command list. */
#define RIP_REQUEST                      1
#define RIP_RESPONSE                     2
#define RIP_TRACEON                      3	/* Obsolete */
#define RIP_TRACEOFF                     4	/* Obsolete */
#define RIP_POLL                         5
#define RIP_POLL_ENTRY                   6
#define RIP_COMMAND_MAX                  7

/* RIP metric infinity value.*/
#define RIP_METRIC_INFINITY             16

/* Normal RIP packet min and max size. */
#define RIP_PACKET_MINSIZ                4
#define RIP_PACKET_MAXSIZ              512

#define RIP_HEADER_SIZE                  4
#define RIP_RTE_SIZE                    20

/* Max count of routing table entry in one rip packet. */
#define RIP_MAX_RTE   ((RIP_PACKET_MAXSIZ - RIP_HEADER_SIZE) / RIP_RTE_SIZE)

/* RIP version 2 multicast address. */
#ifndef INADDR_RIP_GROUP
#define INADDR_RIP_GROUP        0xe0000009    /* 224.0.0.9 */
#endif

/* RIP timers */
#define RIP_UPDATE_TIMER_DEFAULT        30
#define RIP_TIMEOUT_TIMER_DEFAULT      180
#define RIP_GARBAGE_TIMER_DEFAULT      120

/* RIP peer timeout value. */
#define RIP_PEER_TIMER_DEFAULT         180

/* RIP port number. */
#define RIP_PORT_DEFAULT               520
#define RIP_VTY_PORT                  2602

/* Default configuration file name. */
#define RIPD_DEFAULT_CONFIG    "ripd.conf"

/* RIP route types. */
#define RIP_ROUTE_RTE                    0
#define RIP_ROUTE_STATIC                 1
#define RIP_ROUTE_DEFAULT                2
#define RIP_ROUTE_REDISTRIBUTE           3
#define RIP_ROUTE_INTERFACE              4

/* RIPv2 special RTE family types */
#define RIP_FAMILY_AUTH                  0xffff

/* RIPv2 authentication types, for RIP_FAMILY_AUTH RTE's */
#define RIP_NO_AUTH                0
#define RIP_AUTH_DATA              1
#define RIP_AUTH_SIMPLE_PASSWORD   2
#define RIP_AUTH_MD5               3

/* RIPv2 Simple authentication */
#define RIP_AUTH_SIMPLE_SIZE		16

/* RIPv2 MD5 authentication. */
#define RIP_AUTH_MD5_SIZE               16
#define RIP_AUTH_MD5_COMPAT_SIZE        RIP_RTE_SIZE

/* RIP structure. */
struct rip {
	/* RIP socket. */
	int sock;

	/* Default version of rip instance. */
	int version_send; /* version 1 or 2 (but not both) */
	int version_recv; /* version 1 or 2 or both */

	/* Output buffer of RIP. */
	struct stream *obuf;

	/* RIP routing information base. */
	struct route_table *table;

	/* RIP only static routing information. */
	struct route_table *route;

	/* RIP neighbor. */
	struct route_table *neighbor;

	/* RIP threads. */
	struct thread *t_read;

	/* Update and garbage timer. */
	struct thread *t_update;

	/* Triggered update hack. */
	int trigger;
	struct thread *t_triggered_update;
	struct thread *t_triggered_interval;

	/* RIP timer values. */
	unsigned long update_time;
	unsigned long timeout_time;
	unsigned long garbage_time;

	/* RIP default metric. */
	int default_metric;

	/* RIP default-information originate. */
	u_char default_information;
	char *default_information_route_map;

	/* RIP default distance. */
	u_char distance;
	struct route_table *distance_table;

	/* RIP ECMP flag */
	unsigned int ecmp;

	/* For redistribute route map. */
	struct {
		char *name;
		struct route_map *map;
		int metric_config;
		u_int32_t metric;
	} route_map[ZEBRA_ROUTE_MAX];

	QOBJ_FIELDS
};
DECLARE_QOBJ_TYPE(rip)

/* RIP routing table entry which belong to rip_packet. */
struct rte {
	u_int16_t family;       /* Address family of this route. */
	u_int16_t tag;		/* Route Tag which included in RIP2 packet. */
	struct in_addr prefix;  /* Prefix of rip route. */
	struct in_addr mask;    /* Netmask of rip route. */
	struct in_addr nexthop; /* Next hop of rip route. */
	u_int32_t metric;       /* Metric value of rip route. */
};

/* RIP packet structure. */
struct rip_packet {
	unsigned char command; /* Command type of RIP packet. */
	unsigned char version; /* RIP version which coming from peer. */
	unsigned char pad1;    /* Padding of RIP packet header. */
	unsigned char pad2;    /* Same as above. */
	struct rte rte[1];     /* Address structure. */
};

/* Buffer to read RIP packet. */
union rip_buf {
	struct rip_packet rip_packet;
	char buf[RIP_PACKET_MAXSIZ];
};

/* RIP route information. */
struct rip_info {
	/* This route's type. */
	int type;

	/* Sub type. */
	int sub_type;

	/* RIP nexthop. */
	struct in_addr nexthop;
	struct in_addr from;

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

	/* Metric of this route. */
	u_int32_t metric;

	/* External metric of this route.
	   if learnt from an externalm proto */
	u_int32_t external_metric;

	/* Tag information of this route. */
	u_int16_t tag;

/* Flags of RIP route. */
#define RIP_RTF_FIB      1
#define RIP_RTF_CHANGED  2
	u_char flags;

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

	/* Route-map futures - this variables can be changed. */
	struct in_addr nexthop_out;
	u_char metric_set;
	u_int32_t metric_out;
	u_int16_t tag_out;
	ifindex_t ifindex_out;

	struct route_node *rp;

	u_char distance;

#ifdef NEW_RIP_TABLE
	struct rip_info *next;
	struct rip_info *prev;
#endif /* NEW_RIP_TABLE */
};

typedef enum {
	RIP_NO_SPLIT_HORIZON = 0,
	RIP_SPLIT_HORIZON,
	RIP_SPLIT_HORIZON_POISONED_REVERSE
} split_horizon_policy_t;

/* RIP specific interface configuration. */
struct rip_interface {
	/* RIP is enabled on this interface. */
	int enable_network;
	int enable_interface;

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

	/* RIP version control. */
	int ri_send;
	int ri_receive;

	/* RIPv2 broadcast mode */
	int v2_broadcast;

	/* RIPv2 authentication type. */
	int auth_type;

	/* RIPv2 authentication string. */
	char *auth_str;

	/* RIPv2 authentication key chain. */
	char *key_chain;

	/* value to use for md5->auth_len */
	u_int8_t md5_auth_len;

	/* Split horizon flag. */
	split_horizon_policy_t split_horizon;
	split_horizon_policy_t split_horizon_default;

/* For filter type slot. */
#define RIP_FILTER_IN  0
#define RIP_FILTER_OUT 1
#define RIP_FILTER_MAX 2

	/* Access-list. */
	struct access_list *list[RIP_FILTER_MAX];

	/* Prefix-list. */
	struct prefix_list *prefix[RIP_FILTER_MAX];

	/* Route-map. */
	struct route_map *routemap[RIP_FILTER_MAX];

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

	/* Interface statistics. */
	int recv_badpackets;
	int recv_badroutes;
	int sent_updates;

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

/* RIP peer information. */
struct rip_peer {
	/* Peer address. */
	struct in_addr addr;

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

	/* Last update time. */
	time_t uptime;

	/* Peer RIP version. */
	u_char version;

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

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

struct rip_md5_info {
	u_int16_t family;
	u_int16_t type;
	u_int16_t packet_len;
	u_char keyid;
	u_char auth_len;
	u_int32_t sequence;
	u_int32_t reserv1;
	u_int32_t reserv2;
};

struct rip_md5_data {
	u_int16_t family;
	u_int16_t type;
	u_char digest[16];
};

/* RIP accepet/announce methods. */
#define RI_RIP_UNSPEC                      0
#define RI_RIP_VERSION_1                   1
#define RI_RIP_VERSION_2                   2
#define RI_RIP_VERSION_1_AND_2             3
#define RI_RIP_VERSION_NONE                4
/* N.B. stuff will break if
	(RIPv1 != RI_RIP_VERSION_1) || (RIPv2 != RI_RIP_VERSION_2) */

/* Default value for "default-metric" command. */
#define RIP_DEFAULT_METRIC_DEFAULT         1

/* RIP event. */
enum rip_event {
	RIP_READ,
	RIP_UPDATE_EVENT,
	RIP_TRIGGERED_UPDATE,
};

/* Macro for timer turn on. */
#define RIP_TIMER_ON(T,F,V) thread_add_timer (master, (F), rinfo, (V), &(T))

/* Macro for timer turn off. */
#define RIP_TIMER_OFF(X) THREAD_TIMER_OFF(X)

/* Prototypes. */
extern void rip_init(void);
extern void rip_reset(void);
extern void rip_clean(void);
extern void rip_clean_network(void);
extern void rip_interfaces_clean(void);
extern void rip_interfaces_reset(void);
extern void rip_passive_nondefault_clean(void);
extern void rip_if_init(void);
extern void rip_if_down_all(void);
extern void rip_route_map_init(void);
extern void rip_route_map_reset(void);
extern void rip_zclient_init(struct thread_master *);
extern void rip_zclient_stop(void);
extern void rip_zclient_reset(void);
extern void rip_offset_init(void);
extern int if_check_address(struct in_addr addr);

extern int rip_request_send(struct sockaddr_in *, struct interface *, u_char,
			    struct connected *);
extern int rip_neighbor_lookup(struct sockaddr_in *);

extern int rip_redistribute_check(int);
extern void rip_redistribute_add(int, int, struct prefix_ipv4 *, ifindex_t,
				 struct in_addr *, unsigned int, unsigned char,
				 route_tag_t);
extern void rip_redistribute_delete(int, int, struct prefix_ipv4 *, ifindex_t);
extern void rip_redistribute_withdraw(int);
extern void rip_zebra_ipv4_add(struct route_node *);
extern void rip_zebra_ipv4_delete(struct route_node *);
extern void rip_interface_multicast_set(int, struct connected *);
extern void rip_distribute_update_interface(struct interface *);
extern void rip_if_rmap_update_interface(struct interface *);

extern int config_write_rip_network(struct vty *, int);
extern int config_write_rip_offset_list(struct vty *);
extern int config_write_rip_redistribute(struct vty *, int);

extern void rip_peer_init(void);
extern void rip_peer_update(struct sockaddr_in *, u_char);
extern void rip_peer_bad_route(struct sockaddr_in *);
extern void rip_peer_bad_packet(struct sockaddr_in *);
extern void rip_peer_display(struct vty *);
extern struct rip_peer *rip_peer_lookup(struct in_addr *);
extern struct rip_peer *rip_peer_lookup_next(struct in_addr *);

extern int rip_offset_list_apply_in(struct prefix_ipv4 *, struct interface *,
				    u_int32_t *);
extern int rip_offset_list_apply_out(struct prefix_ipv4 *, struct interface *,
				     u_int32_t *);
extern void rip_offset_clean(void);

extern void rip_info_free(struct rip_info *);
extern u_char rip_distance_apply(struct rip_info *);
extern void rip_redistribute_clean(void);

extern struct rip_info *rip_ecmp_add(struct rip_info *);
extern struct rip_info *rip_ecmp_replace(struct rip_info *);
extern struct rip_info *rip_ecmp_delete(struct rip_info *);

/* There is only one rip strucutre. */
extern struct rip *rip;

extern struct zebra_privs_t ripd_privs;

/* Master thread strucutre. */
extern struct thread_master *master;

/* RIP statistics for SNMP. */
extern long rip_global_route_changes;
extern long rip_global_queries;

DECLARE_HOOK(rip_ifaddr_add, (struct connected * ifc), (ifc))
DECLARE_HOOK(rip_ifaddr_del, (struct connected * ifc), (ifc))

#endif /* _ZEBRA_RIP_H */
Commit	Line	Data
718e3744	1	/* RIP related values and structures.
	2	* Copyright (C) 1997, 1998, 1999 Kunihiro Ishiguro <kunihiro@zebra.org>
	3	*
	4	* This file is part of GNU Zebra.
	5	*
	6	* GNU Zebra is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2, or (at your option) any
	9	* later version.
	10	*
	11	* GNU Zebra is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
896014f4 DL	16	* You should have received a copy of the GNU General Public License along
	17	* with this program; see the file COPYING; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
718e3744	19	*/
	20
	21	#ifndef _ZEBRA_RIP_H
	22	#define _ZEBRA_RIP_H
	23
f6eacff4	24	#include "qobj.h"
3012671f	25	#include "hook.h"
4a1ab8e4 DL	26	#include "rip_memory.h"
4a1ab8e4 DL	27
718e3744	28	/* RIP version number. */
	29	#define RIPv1 1
	30	#define RIPv2 2
f38a471c	31	/* N.B. stuff will break if
	32	(RIPv1 != RI_RIP_VERSION_1) \|\| (RIPv2 != RI_RIP_VERSION_2) */
	33
718e3744	34
	35	/* RIP command list. */
	36	#define RIP_REQUEST 1
	37	#define RIP_RESPONSE 2
	38	#define RIP_TRACEON 3 /* Obsolete */
	39	#define RIP_TRACEOFF 4 /* Obsolete */
	40	#define RIP_POLL 5
	41	#define RIP_POLL_ENTRY 6
	42	#define RIP_COMMAND_MAX 7
	43
	44	/* RIP metric infinity value.*/
	45	#define RIP_METRIC_INFINITY 16
	46
	47	/* Normal RIP packet min and max size. */
	48	#define RIP_PACKET_MINSIZ 4
	49	#define RIP_PACKET_MAXSIZ 512
	50
	51	#define RIP_HEADER_SIZE 4
	52	#define RIP_RTE_SIZE 20
	53
	54	/* Max count of routing table entry in one rip packet. */
6a7cff75	55	#define RIP_MAX_RTE ((RIP_PACKET_MAXSIZ - RIP_HEADER_SIZE) / RIP_RTE_SIZE)
718e3744	56
	57	/* RIP version 2 multicast address. */
	58	#ifndef INADDR_RIP_GROUP
	59	#define INADDR_RIP_GROUP 0xe0000009 /* 224.0.0.9 */
	60	#endif
	61
	62	/* RIP timers */
	63	#define RIP_UPDATE_TIMER_DEFAULT 30
	64	#define RIP_TIMEOUT_TIMER_DEFAULT 180
	65	#define RIP_GARBAGE_TIMER_DEFAULT 120
	66
	67	/* RIP peer timeout value. */
	68	#define RIP_PEER_TIMER_DEFAULT 180
	69
	70	/* RIP port number. */
	71	#define RIP_PORT_DEFAULT 520
	72	#define RIP_VTY_PORT 2602
718e3744	73
	74	/* Default configuration file name. */
	75	#define RIPD_DEFAULT_CONFIG "ripd.conf"
	76
	77	/* RIP route types. */
	78	#define RIP_ROUTE_RTE 0
	79	#define RIP_ROUTE_STATIC 1
	80	#define RIP_ROUTE_DEFAULT 2
	81	#define RIP_ROUTE_REDISTRIBUTE 3
	82	#define RIP_ROUTE_INTERFACE 4
	83
ca5e516c	84	/* RIPv2 special RTE family types */
	85	#define RIP_FAMILY_AUTH 0xffff
	86
	87	/* RIPv2 authentication types, for RIP_FAMILY_AUTH RTE's */
	88	#define RIP_NO_AUTH 0
	89	#define RIP_AUTH_DATA 1
	90	#define RIP_AUTH_SIMPLE_PASSWORD 2
	91	#define RIP_AUTH_MD5 3
	92
b14ee00b	93	/* RIPv2 Simple authentication */
	94	#define RIP_AUTH_SIMPLE_SIZE 16
	95
ca5e516c	96	/* RIPv2 MD5 authentication. */
718e3744	97	#define RIP_AUTH_MD5_SIZE 16
ca5e516c	98	#define RIP_AUTH_MD5_COMPAT_SIZE RIP_RTE_SIZE
718e3744	99
718e3744	100	/* RIP structure. */
d62a17ae	101	struct rip {
	102	/* RIP socket. */
	103	int sock;
	104
	105	/* Default version of rip instance. */
	106	int version_send; /* version 1 or 2 (but not both) */
	107	int version_recv; /* version 1 or 2 or both */
	108
	109	/* Output buffer of RIP. */
	110	struct stream *obuf;
	111
	112	/* RIP routing information base. */
	113	struct route_table *table;
	114
	115	/* RIP only static routing information. */
	116	struct route_table *route;
	117
	118	/* RIP neighbor. */
	119	struct route_table *neighbor;
	120
	121	/* RIP threads. */
	122	struct thread *t_read;
	123
	124	/* Update and garbage timer. */
	125	struct thread *t_update;
	126
	127	/* Triggered update hack. */
	128	int trigger;
	129	struct thread *t_triggered_update;
	130	struct thread *t_triggered_interval;
	131
	132	/* RIP timer values. */
	133	unsigned long update_time;
	134	unsigned long timeout_time;
	135	unsigned long garbage_time;
	136
	137	/* RIP default metric. */
	138	int default_metric;
	139
	140	/* RIP default-information originate. */
	141	u_char default_information;
	142	char *default_information_route_map;
	143
	144	/* RIP default distance. */
	145	u_char distance;
	146	struct route_table *distance_table;
	147
	148	/* RIP ECMP flag */
	149	unsigned int ecmp;
	150
	151	/* For redistribute route map. */
	152	struct {
	153	char *name;
	154	struct route_map *map;
	155	int metric_config;
	156	u_int32_t metric;
	157	} route_map[ZEBRA_ROUTE_MAX];
	158
	159	QOBJ_FIELDS
718e3744	160	};
f6eacff4	161	DECLARE_QOBJ_TYPE(rip)
718e3744	162
718e3744	163	/* RIP routing table entry which belong to rip_packet. */
d62a17ae	164	struct rte {
	165	u_int16_t family; /* Address family of this route. */
	166	u_int16_t tag; /* Route Tag which included in RIP2 packet. */
	167	struct in_addr prefix; /* Prefix of rip route. */
	168	struct in_addr mask; /* Netmask of rip route. */
	169	struct in_addr nexthop; /* Next hop of rip route. */
	170	u_int32_t metric; /* Metric value of rip route. */
718e3744	171	};
	172
	173	/* RIP packet structure. */
d62a17ae	174	struct rip_packet {
	175	unsigned char command; /* Command type of RIP packet. */
	176	unsigned char version; /* RIP version which coming from peer. */
	177	unsigned char pad1; /* Padding of RIP packet header. */
	178	unsigned char pad2; /* Same as above. */
	179	struct rte rte[1]; /* Address structure. */
718e3744	180	};
	181
	182	/* Buffer to read RIP packet. */
d62a17ae	183	union rip_buf {
	184	struct rip_packet rip_packet;
	185	char buf[RIP_PACKET_MAXSIZ];
718e3744	186	};
	187
	188	/* RIP route information. */
d62a17ae	189	struct rip_info {
	190	/* This route's type. */
	191	int type;
718e3744	192
d62a17ae	193	/* Sub type. */
d62a17ae	194	int sub_type;
718e3744	195
d62a17ae	196	/* RIP nexthop. */
	197	struct in_addr nexthop;
	198	struct in_addr from;
718e3744	199
d62a17ae	200	/* Which interface does this route come from. */
d62a17ae	201	ifindex_t ifindex;
718e3744	202
d62a17ae	203	/* Metric of this route. */
d62a17ae	204	u_int32_t metric;
718e3744	205
d62a17ae	206	/* External metric of this route.
	207	if learnt from an externalm proto */
	208	u_int32_t external_metric;
fbf5d033	209
d62a17ae	210	/* Tag information of this route. */
d62a17ae	211	u_int16_t tag;
718e3744	212
d62a17ae	213	/* Flags of RIP route. */
718e3744	214	#define RIP_RTF_FIB 1
718e3744	215	#define RIP_RTF_CHANGED 2
d62a17ae	216	u_char flags;
718e3744	217
d62a17ae	218	/* Garbage collect timer. */
	219	struct thread *t_timeout;
	220	struct thread *t_garbage_collect;
718e3744	221
d62a17ae	222	/* Route-map futures - this variables can be changed. */
	223	struct in_addr nexthop_out;
	224	u_char metric_set;
	225	u_int32_t metric_out;
	226	u_int16_t tag_out;
	227	ifindex_t ifindex_out;
718e3744	228
d62a17ae	229	struct route_node *rp;
718e3744	230
d62a17ae	231	u_char distance;
718e3744	232
718e3744	233	#ifdef NEW_RIP_TABLE
d62a17ae	234	struct rip_info *next;
d62a17ae	235	struct rip_info *prev;
718e3744	236	#endif /* NEW_RIP_TABLE */
	237	};
	238
16705130	239	typedef enum {
d62a17ae	240	RIP_NO_SPLIT_HORIZON = 0,
	241	RIP_SPLIT_HORIZON,
	242	RIP_SPLIT_HORIZON_POISONED_REVERSE
16705130	243	} split_horizon_policy_t;
16705130	244
718e3744	245	/* RIP specific interface configuration. */
d62a17ae	246	struct rip_interface {
	247	/* RIP is enabled on this interface. */
	248	int enable_network;
	249	int enable_interface;
718e3744	250
d62a17ae	251	/* RIP is running on this interface. */
d62a17ae	252	int running;
718e3744	253
d62a17ae	254	/* RIP version control. */
	255	int ri_send;
	256	int ri_receive;
718e3744	257
d62a17ae	258	/* RIPv2 broadcast mode */
d62a17ae	259	int v2_broadcast;
f90310cf	260
d62a17ae	261	/* RIPv2 authentication type. */
d62a17ae	262	int auth_type;
718e3744	263
d62a17ae	264	/* RIPv2 authentication string. */
d62a17ae	265	char *auth_str;
718e3744	266
d62a17ae	267	/* RIPv2 authentication key chain. */
d62a17ae	268	char *key_chain;
718e3744	269
d62a17ae	270	/* value to use for md5->auth_len */
d62a17ae	271	u_int8_t md5_auth_len;
ca5e516c	272
d62a17ae	273	/* Split horizon flag. */
	274	split_horizon_policy_t split_horizon;
	275	split_horizon_policy_t split_horizon_default;
718e3744	276
d62a17ae	277	/* For filter type slot. */
718e3744	278	#define RIP_FILTER_IN 0
	279	#define RIP_FILTER_OUT 1
	280	#define RIP_FILTER_MAX 2
	281
d62a17ae	282	/* Access-list. */
d62a17ae	283	struct access_list *list[RIP_FILTER_MAX];
718e3744	284
d62a17ae	285	/* Prefix-list. */
d62a17ae	286	struct prefix_list *prefix[RIP_FILTER_MAX];
718e3744	287
d62a17ae	288	/* Route-map. */
d62a17ae	289	struct route_map *routemap[RIP_FILTER_MAX];
16705130	290
d62a17ae	291	/* Wake up thread. */
d62a17ae	292	struct thread *t_wakeup;
718e3744	293
d62a17ae	294	/* Interface statistics. */
	295	int recv_badpackets;
	296	int recv_badroutes;
	297	int sent_updates;
718e3744	298
d62a17ae	299	/* Passive interface. */
d62a17ae	300	int passive;
718e3744	301	};
	302
	303	/* RIP peer information. */
d62a17ae	304	struct rip_peer {
	305	/* Peer address. */
	306	struct in_addr addr;
718e3744	307
d62a17ae	308	/* Peer RIP tag value. */
d62a17ae	309	int domain;
718e3744	310
d62a17ae	311	/* Last update time. */
d62a17ae	312	time_t uptime;
718e3744	313
d62a17ae	314	/* Peer RIP version. */
d62a17ae	315	u_char version;
718e3744	316
d62a17ae	317	/* Statistics. */
	318	int recv_badpackets;
	319	int recv_badroutes;
718e3744	320
d62a17ae	321	/* Timeout thread. */
d62a17ae	322	struct thread *t_timeout;
718e3744	323	};
718e3744	324
d62a17ae	325	struct rip_md5_info {
	326	u_int16_t family;
	327	u_int16_t type;
	328	u_int16_t packet_len;
	329	u_char keyid;
	330	u_char auth_len;
	331	u_int32_t sequence;
	332	u_int32_t reserv1;
	333	u_int32_t reserv2;
718e3744	334	};
718e3744	335
d62a17ae	336	struct rip_md5_data {
	337	u_int16_t family;
	338	u_int16_t type;
	339	u_char digest[16];
718e3744	340	};
	341
	342	/* RIP accepet/announce methods. */
	343	#define RI_RIP_UNSPEC 0
	344	#define RI_RIP_VERSION_1 1
	345	#define RI_RIP_VERSION_2 2
	346	#define RI_RIP_VERSION_1_AND_2 3
6aec4b41	347	#define RI_RIP_VERSION_NONE 4
f38a471c	348	/* N.B. stuff will break if
f38a471c	349	(RIPv1 != RI_RIP_VERSION_1) \|\| (RIPv2 != RI_RIP_VERSION_2) */
718e3744	350
	351	/* Default value for "default-metric" command. */
	352	#define RIP_DEFAULT_METRIC_DEFAULT 1
	353
	354	/* RIP event. */
d62a17ae	355	enum rip_event {
	356	RIP_READ,
	357	RIP_UPDATE_EVENT,
	358	RIP_TRIGGERED_UPDATE,
718e3744	359	};
	360
	361	/* Macro for timer turn on. */
ffa2c898	362	#define RIP_TIMER_ON(T,F,V) thread_add_timer (master, (F), rinfo, (V), &(T))
718e3744	363
718e3744	364	/* Macro for timer turn off. */
8578874d	365	#define RIP_TIMER_OFF(X) THREAD_TIMER_OFF(X)
718e3744	366
718e3744	367	/* Prototypes. */
d62a17ae	368	extern void rip_init(void);
	369	extern void rip_reset(void);
	370	extern void rip_clean(void);
	371	extern void rip_clean_network(void);
	372	extern void rip_interfaces_clean(void);
	373	extern void rip_interfaces_reset(void);
	374	extern void rip_passive_nondefault_clean(void);
	375	extern void rip_if_init(void);
	376	extern void rip_if_down_all(void);
	377	extern void rip_route_map_init(void);
	378	extern void rip_route_map_reset(void);
4140ca4d	379	extern void rip_zclient_init(struct thread_master *);
a2f9eb82	380	extern void rip_zclient_stop(void);
d62a17ae	381	extern void rip_zclient_reset(void);
	382	extern void rip_offset_init(void);
	383	extern int if_check_address(struct in_addr addr);
	384
	385	extern int rip_request_send(struct sockaddr_in , struct interface , u_char,
	386	struct connected *);
	387	extern int rip_neighbor_lookup(struct sockaddr_in *);
	388
	389	extern int rip_redistribute_check(int);
	390	extern void rip_redistribute_add(int, int, struct prefix_ipv4 *, ifindex_t,
	391	struct in_addr *, unsigned int, unsigned char,
	392	route_tag_t);
	393	extern void rip_redistribute_delete(int, int, struct prefix_ipv4 *, ifindex_t);
	394	extern void rip_redistribute_withdraw(int);
	395	extern void rip_zebra_ipv4_add(struct route_node *);
	396	extern void rip_zebra_ipv4_delete(struct route_node *);
	397	extern void rip_interface_multicast_set(int, struct connected *);
	398	extern void rip_distribute_update_interface(struct interface *);
	399	extern void rip_if_rmap_update_interface(struct interface *);
	400
	401	extern int config_write_rip_network(struct vty *, int);
	402	extern int config_write_rip_offset_list(struct vty *);
	403	extern int config_write_rip_redistribute(struct vty *, int);
	404
	405	extern void rip_peer_init(void);
	406	extern void rip_peer_update(struct sockaddr_in *, u_char);
	407	extern void rip_peer_bad_route(struct sockaddr_in *);
	408	extern void rip_peer_bad_packet(struct sockaddr_in *);
	409	extern void rip_peer_display(struct vty *);
	410	extern struct rip_peer rip_peer_lookup(struct in_addr );
	411	extern struct rip_peer rip_peer_lookup_next(struct in_addr );
	412
	413	extern int rip_offset_list_apply_in(struct prefix_ipv4 , struct interface ,
	414	u_int32_t *);
	415	extern int rip_offset_list_apply_out(struct prefix_ipv4 , struct interface ,
	416	u_int32_t *);
	417	extern void rip_offset_clean(void);
	418
	419	extern void rip_info_free(struct rip_info *);
	420	extern u_char rip_distance_apply(struct rip_info *);
	421	extern void rip_redistribute_clean(void);
	422
	423	extern struct rip_info rip_ecmp_add(struct rip_info );
	424	extern struct rip_info rip_ecmp_replace(struct rip_info );
	425	extern struct rip_info rip_ecmp_delete(struct rip_info );
bce8e868	426
718e3744	427	/* There is only one rip strucutre. */
	428	extern struct rip *rip;
	429
32b5a493 DS	430	extern struct zebra_privs_t ripd_privs;
32b5a493 DS	431
718e3744	432	/* Master thread strucutre. */
	433	extern struct thread_master *master;
	434
	435	/* RIP statistics for SNMP. */
	436	extern long rip_global_route_changes;
	437	extern long rip_global_queries;
3012671f	438
d62a17ae	439	DECLARE_HOOK(rip_ifaddr_add, (struct connected * ifc), (ifc))
d62a17ae	440	DECLARE_HOOK(rip_ifaddr_del, (struct connected * ifc), (ifc))
3012671f	441
718e3744	442	#endif /* _ZEBRA_RIP_H */