[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 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_RIP_H
#define _ZEBRA_RIP_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                     25

/* 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 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;

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

/* 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. */
  unsigned int ifindex;

  /* Metric of this route. */
  u_int32_t 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_short tag_out;
  unsigned int 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 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
/* 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) \
  do { \
    if (!(T)) \
      (T) = thread_add_timer (master, (F), rinfo, (V)); \
  } while (0)

/* Macro for timer turn off. */
#define RIP_TIMER_OFF(X) \
  do { \
    if (X) \
      { \
        thread_cancel (X); \
        (X) = NULL; \
      } \
  } while (0)

/* Prototypes. */
void rip_init ();
void rip_reset ();
void rip_clean ();
void rip_clean_network ();
void rip_interface_clean ();
void rip_interface_reset ();
void rip_passive_nondefault_clean ();
void rip_if_init ();
void rip_if_down_all ();
void rip_route_map_init ();
void rip_route_map_reset ();
void rip_snmp_init ();
void rip_zclient_init ();
void rip_zclient_start ();
void rip_zclient_reset ();
void rip_offset_init ();
int if_check_address (struct in_addr addr);
int if_valid_neighbor (struct in_addr addr);

int rip_request_send (struct sockaddr_in *, struct interface *, u_char,
                      struct connected *);
int rip_neighbor_lookup (struct sockaddr_in *);
void rip_redistribute_add (int, int, struct prefix_ipv4 *, unsigned int, 
			   struct in_addr *);
void rip_redistribute_delete (int, int, struct prefix_ipv4 *, unsigned int);
void rip_redistribute_withdraw (int);
void rip_zebra_ipv4_add (struct prefix_ipv4 *, struct in_addr *, u_int32_t, u_char);
void rip_zebra_ipv4_delete (struct prefix_ipv4 *, struct in_addr *, u_int32_t);
void rip_interface_multicast_set (int, struct connected *);
void rip_distribute_update_interface (struct interface *);
void rip_if_rmap_update_interface (struct interface *);

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

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

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

void rip_info_free (struct rip_info *);
u_char rip_distance_apply (struct rip_info *);
void rip_redistribute_clean ();
void rip_ifaddr_add (struct interface *, struct connected *);
void rip_ifaddr_delete (struct interface *, struct connected *);

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

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

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

#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	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with GNU Zebra; see the file COPYING. If not, write to the Free
	18	* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
	19	* 02111-1307, USA.
	20	*/
	21
	22	#ifndef _ZEBRA_RIP_H
	23	#define _ZEBRA_RIP_H
	24
	25	/* RIP version number. */
	26	#define RIPv1 1
	27	#define RIPv2 2
f38a471c	28	/* N.B. stuff will break if
	29	(RIPv1 != RI_RIP_VERSION_1) \|\| (RIPv2 != RI_RIP_VERSION_2) */
	30
718e3744	31
	32	/* RIP command list. */
	33	#define RIP_REQUEST 1
	34	#define RIP_RESPONSE 2
	35	#define RIP_TRACEON 3 /* Obsolete */
	36	#define RIP_TRACEOFF 4 /* Obsolete */
	37	#define RIP_POLL 5
	38	#define RIP_POLL_ENTRY 6
	39	#define RIP_COMMAND_MAX 7
	40
	41	/* RIP metric infinity value.*/
	42	#define RIP_METRIC_INFINITY 16
	43
	44	/* Normal RIP packet min and max size. */
	45	#define RIP_PACKET_MINSIZ 4
	46	#define RIP_PACKET_MAXSIZ 512
	47
	48	#define RIP_HEADER_SIZE 4
	49	#define RIP_RTE_SIZE 20
	50
	51	/* Max count of routing table entry in one rip packet. */
	52	#define RIP_MAX_RTE 25
	53
	54	/* RIP version 2 multicast address. */
	55	#ifndef INADDR_RIP_GROUP
	56	#define INADDR_RIP_GROUP 0xe0000009 /* 224.0.0.9 */
	57	#endif
	58
	59	/* RIP timers */
	60	#define RIP_UPDATE_TIMER_DEFAULT 30
	61	#define RIP_TIMEOUT_TIMER_DEFAULT 180
	62	#define RIP_GARBAGE_TIMER_DEFAULT 120
	63
	64	/* RIP peer timeout value. */
	65	#define RIP_PEER_TIMER_DEFAULT 180
	66
	67	/* RIP port number. */
	68	#define RIP_PORT_DEFAULT 520
	69	#define RIP_VTY_PORT 2602
718e3744	70
	71	/* Default configuration file name. */
	72	#define RIPD_DEFAULT_CONFIG "ripd.conf"
	73
	74	/* RIP route types. */
	75	#define RIP_ROUTE_RTE 0
	76	#define RIP_ROUTE_STATIC 1
	77	#define RIP_ROUTE_DEFAULT 2
	78	#define RIP_ROUTE_REDISTRIBUTE 3
	79	#define RIP_ROUTE_INTERFACE 4
	80
ca5e516c	81	/* RIPv2 special RTE family types */
	82	#define RIP_FAMILY_AUTH 0xffff
	83
	84	/* RIPv2 authentication types, for RIP_FAMILY_AUTH RTE's */
	85	#define RIP_NO_AUTH 0
	86	#define RIP_AUTH_DATA 1
	87	#define RIP_AUTH_SIMPLE_PASSWORD 2
	88	#define RIP_AUTH_MD5 3
	89
	90	/* RIPv2 MD5 authentication. */
718e3744	91	#define RIP_AUTH_MD5_SIZE 16
ca5e516c	92	#define RIP_AUTH_MD5_COMPAT_SIZE RIP_RTE_SIZE
718e3744	93
	94	/* RIP structure. */
	95	struct rip
	96	{
	97	/* RIP socket. */
	98	int sock;
	99
	100	/* Default version of rip instance. */
f38a471c	101	int version_send; /* version 1 or 2 (but not both) */
f38a471c	102	int version_recv; /* version 1 or 2 or both */
718e3744	103
	104	/* Output buffer of RIP. */
	105	struct stream *obuf;
	106
	107	/* RIP routing information base. */
	108	struct route_table *table;
	109
	110	/* RIP only static routing information. */
	111	struct route_table *route;
	112
	113	/* RIP neighbor. */
	114	struct route_table *neighbor;
	115
	116	/* RIP threads. */
	117	struct thread *t_read;
	118
	119	/* Update and garbage timer. */
	120	struct thread *t_update;
	121
	122	/* Triggered update hack. */
	123	int trigger;
	124	struct thread *t_triggered_update;
	125	struct thread *t_triggered_interval;
	126
	127	/* RIP timer values. */
	128	unsigned long update_time;
	129	unsigned long timeout_time;
	130	unsigned long garbage_time;
	131
	132	/* RIP default metric. */
	133	int default_metric;
	134
	135	/* RIP default-information originate. */
	136	u_char default_information;
	137	char *default_information_route_map;
	138
	139	/* RIP default distance. */
	140	u_char distance;
	141	struct route_table *distance_table;
	142
	143	/* For redistribute route map. */
	144	struct
	145	{
	146	char *name;
	147	struct route_map *map;
	148	int metric_config;
	149	u_int32_t metric;
	150	} route_map[ZEBRA_ROUTE_MAX];
	151	};
	152
	153	/* RIP routing table entry which belong to rip_packet. */
	154	struct rte
	155	{
	156	u_int16_t family; /* Address family of this route. */
	157	u_int16_t tag; /* Route Tag which included in RIP2 packet. */
	158	struct in_addr prefix; /* Prefix of rip route. */
	159	struct in_addr mask; /* Netmask of rip route. */
	160	struct in_addr nexthop; /* Next hop of rip route. */
	161	u_int32_t metric; /* Metric value of rip route. */
	162	};
	163
	164	/* RIP packet structure. */
	165	struct rip_packet
	166	{
167	unsigned char command; /* Command type of RIP packet. */
168	unsigned char version; /* RIP version which coming from peer. */
169	unsigned char pad1; /* Padding of RIP packet header. */
170	unsigned char pad2; /* Same as above. */
171	struct rte rte[1]; /* Address structure. */
172	};
173
174	/* Buffer to read RIP packet. */
175	union rip_buf
176	{
177	struct rip_packet rip_packet;
178	char buf[RIP_PACKET_MAXSIZ];
179	};
180
181	/* RIP route information. */
182	struct rip_info
183	{
184	/* This route's type. */
185	int type;
186
187	/* Sub type. */
188	int sub_type;
189
190	/* RIP nexthop. */
191	struct in_addr nexthop;
192	struct in_addr from;
193
194	/* Which interface does this route come from. */
195	unsigned int ifindex;
196
197	/* Metric of this route. */
198	u_int32_t metric;
199
200	/* Tag information of this route. */
201	u_int16_t tag;
202
203	/* Flags of RIP route. */
204	#define RIP_RTF_FIB 1
205	#define RIP_RTF_CHANGED 2
206	u_char flags;
207
208	/* Garbage collect timer. */
209	struct thread *t_timeout;
210	struct thread *t_garbage_collect;
211
212	/* Route-map futures - this variables can be changed. */
213	struct in_addr nexthop_out;
214	u_char metric_set;
215	u_int32_t metric_out;
16705130	216	u_short tag_out;
718e3744	217	unsigned int ifindex_out;
	218
	219	struct route_node *rp;
	220
	221	u_char distance;
	222
	223	#ifdef NEW_RIP_TABLE
	224	struct rip_info *next;
	225	struct rip_info *prev;
	226	#endif /* NEW_RIP_TABLE */
	227	};
	228
16705130	229	typedef enum {
	230	RIP_NO_SPLIT_HORIZON = 0,
	231	RIP_SPLIT_HORIZON,
	232	RIP_SPLIT_HORIZON_POISONED_REVERSE
	233	} split_horizon_policy_t;
	234
718e3744	235	/* RIP specific interface configuration. */
	236	struct rip_interface
	237	{
	238	/* RIP is enabled on this interface. */
	239	int enable_network;
	240	int enable_interface;
	241
	242	/* RIP is running on this interface. */
	243	int running;
	244
	245	/* RIP version control. */
	246	int ri_send;
	247	int ri_receive;
	248
	249	/* RIPv2 authentication type. */
718e3744	250	int auth_type;
	251
	252	/* RIPv2 authentication string. */
	253	char *auth_str;
	254
	255	/* RIPv2 authentication key chain. */
	256	char *key_chain;
	257
ca5e516c	258	/* value to use for md5->auth_len */
	259	u_int8_t md5_auth_len;
	260
718e3744	261	/* Split horizon flag. */
16705130	262	split_horizon_policy_t split_horizon;
16705130	263	split_horizon_policy_t split_horizon_default;
718e3744	264
	265	/* For filter type slot. */
	266	#define RIP_FILTER_IN 0
	267	#define RIP_FILTER_OUT 1
	268	#define RIP_FILTER_MAX 2
	269
	270	/* Access-list. */
	271	struct access_list *list[RIP_FILTER_MAX];
	272
	273	/* Prefix-list. */
	274	struct prefix_list *prefix[RIP_FILTER_MAX];
	275
16705130	276	/* Route-map. */
	277	struct route_map *routemap[RIP_FILTER_MAX];
	278
718e3744	279	/* Wake up thread. */
	280	struct thread *t_wakeup;
	281
	282	/* Interface statistics. */
	283	int recv_badpackets;
	284	int recv_badroutes;
	285	int sent_updates;
	286
	287	/* Passive interface. */
	288	int passive;
	289	};
	290
	291	/* RIP peer information. */
	292	struct rip_peer
	293	{
	294	/* Peer address. */
	295	struct in_addr addr;
	296
	297	/* Peer RIP tag value. */
	298	int domain;
	299
	300	/* Last update time. */
	301	time_t uptime;
	302
	303	/* Peer RIP version. */
	304	u_char version;
	305
	306	/* Statistics. */
	307	int recv_badpackets;
	308	int recv_badroutes;
	309
	310	/* Timeout thread. */
	311	struct thread *t_timeout;
	312	};
	313
	314	struct rip_md5_info
	315	{
	316	u_int16_t family;
	317	u_int16_t type;
	318	u_int16_t packet_len;
	319	u_char keyid;
	320	u_char auth_len;
	321	u_int32_t sequence;
	322	u_int32_t reserv1;
	323	u_int32_t reserv2;
	324	};
	325
	326	struct rip_md5_data
	327	{
	328	u_int16_t family;
	329	u_int16_t type;
	330	u_char digest[16];
	331	};
	332
	333	/* RIP accepet/announce methods. */
	334	#define RI_RIP_UNSPEC 0
	335	#define RI_RIP_VERSION_1 1
	336	#define RI_RIP_VERSION_2 2
	337	#define RI_RIP_VERSION_1_AND_2 3
f38a471c	338	/* N.B. stuff will break if
f38a471c	339	(RIPv1 != RI_RIP_VERSION_1) \|\| (RIPv2 != RI_RIP_VERSION_2) */
718e3744	340
	341	/* Default value for "default-metric" command. */
	342	#define RIP_DEFAULT_METRIC_DEFAULT 1
	343
	344	/* RIP event. */
	345	enum rip_event
	346	{
	347	RIP_READ,
	348	RIP_UPDATE_EVENT,
	349	RIP_TRIGGERED_UPDATE,
	350	};
	351
	352	/* Macro for timer turn on. */
	353	#define RIP_TIMER_ON(T,F,V) \
	354	do { \
	355	if (!(T)) \
	356	(T) = thread_add_timer (master, (F), rinfo, (V)); \
	357	} while (0)
	358
	359	/* Macro for timer turn off. */
	360	#define RIP_TIMER_OFF(X) \
	361	do { \
	362	if (X) \
	363	{ \
	364	thread_cancel (X); \
	365	(X) = NULL; \
	366	} \
	367	} while (0)
	368
	369	/* Prototypes. */
	370	void rip_init ();
	371	void rip_reset ();
	372	void rip_clean ();
	373	void rip_clean_network ();
	374	void rip_interface_clean ();
	375	void rip_interface_reset ();
4aaff3f8	376	void rip_passive_nondefault_clean ();
718e3744	377	void rip_if_init ();
	378	void rip_if_down_all ();
	379	void rip_route_map_init ();
	380	void rip_route_map_reset ();
	381	void rip_snmp_init ();
	382	void rip_zclient_init ();
	383	void rip_zclient_start ();
	384	void rip_zclient_reset ();
	385	void rip_offset_init ();
31a476c7	386	int if_check_address (struct in_addr addr);
31a476c7	387	int if_valid_neighbor (struct in_addr addr);
718e3744	388
931cd54d	389	int rip_request_send (struct sockaddr_in , struct interface , u_char,
931cd54d	390	struct connected *);
718e3744	391	int rip_neighbor_lookup (struct sockaddr_in *);
	392	void rip_redistribute_add (int, int, struct prefix_ipv4 *, unsigned int,
	393	struct in_addr *);
	394	void rip_redistribute_delete (int, int, struct prefix_ipv4 *, unsigned int);
	395	void rip_redistribute_withdraw (int);
	396	void rip_zebra_ipv4_add (struct prefix_ipv4 , struct in_addr , u_int32_t, u_char);
	397	void rip_zebra_ipv4_delete (struct prefix_ipv4 , struct in_addr , u_int32_t);
1a51786a	398	void rip_interface_multicast_set (int, struct connected *);
718e3744	399	void rip_distribute_update_interface (struct interface *);
16705130	400	void rip_if_rmap_update_interface (struct interface *);
718e3744	401
	402	int config_write_rip_network (struct vty *, int);
	403	int config_write_rip_offset_list (struct vty *);
	404	int config_write_rip_redistribute (struct vty *, int);
	405
	406	void rip_peer_init ();
	407	void rip_peer_update (struct sockaddr_in *, u_char);
	408	void rip_peer_bad_route (struct sockaddr_in *);
	409	void rip_peer_bad_packet (struct sockaddr_in *);
	410	void rip_peer_display (struct vty *);
	411	struct rip_peer rip_peer_lookup (struct in_addr );
	412	struct rip_peer rip_peer_lookup_next (struct in_addr );
	413
	414	int rip_offset_list_apply_in (struct prefix_ipv4 , struct interface , u_int32_t *);
	415	int rip_offset_list_apply_out (struct prefix_ipv4 , struct interface , u_int32_t *);
	416	void rip_offset_clean ();
	417
	418	void rip_info_free (struct rip_info *);
	419	u_char rip_distance_apply (struct rip_info *);
	420	void rip_redistribute_clean ();
	421	void rip_ifaddr_add (struct interface , struct connected );
	422	void rip_ifaddr_delete (struct interface , struct connected );
	423
	424	/* There is only one rip strucutre. */
	425	extern struct rip *rip;
	426
	427	/* Master thread strucutre. */
	428	extern struct thread_master *master;
	429
	430	/* RIP statistics for SNMP. */
	431	extern long rip_global_route_changes;
	432	extern long rip_global_queries;
	433
	434	#endif /* _ZEBRA_RIP_H */