[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 "nexthop.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

/* YANG paths */
#define RIP_INSTANCE	"/frr-ripd:ripd/instance"
#define RIP_IFACE	"/frr-interface:lib/interface/frr-ripd:rip"

/* 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. */
	uint8_t default_metric;

	/* RIP default distance. */
	uint8_t distance;
	struct route_table *distance_table;

	/* RIP ECMP flag */
	bool ecmp;

	/* For redistribute route map. */
	struct {
		char *name;
		struct route_map *map;
		int metric_config;
		uint32_t metric;
	} route_map[ZEBRA_ROUTE_MAX];

	QOBJ_FIELDS
};
DECLARE_QOBJ_TYPE(rip)

/* RIP routing table entry which belong to rip_packet. */
struct rte {
	uint16_t family;	/* Address family of this route. */
	uint16_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. */
	uint32_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 nexthop nh;
	struct in_addr from;

	/* Metric of this route. */
	uint32_t metric;

	/* External metric of this route.
	   if learnt from an externalm proto */
	uint32_t external_metric;

	/* Tag information of this route. */
	uint16_t tag;

/* Flags of RIP route. */
#define RIP_RTF_FIB      1
#define RIP_RTF_CHANGED  2
	uint8_t 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;
	uint8_t metric_set;
	uint32_t metric_out;
	uint16_t tag_out;
	ifindex_t ifindex_out;

	struct route_node *rp;

	uint8_t 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 */
	uint8_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. */
	uint8_t version;

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

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

struct rip_distance {
	/* Distance value for the IP source prefix. */
	uint8_t distance;

	/* Name of the access-list to be matched. */
	char *access_list;
};

struct rip_md5_info {
	uint16_t family;
	uint16_t type;
	uint16_t packet_len;
	uint8_t keyid;
	uint8_t auth_len;
	uint32_t sequence;
	uint32_t reserv1;
	uint32_t reserv2;
};

struct rip_md5_data {
	uint16_t family;
	uint16_t type;
	uint8_t 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) */

/* 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_create(int socket);

extern int rip_request_send(struct sockaddr_in *, struct interface *, uint8_t,
			    struct connected *);
extern int rip_neighbor_lookup(struct sockaddr_in *);
extern int rip_neighbor_add(struct prefix_ipv4 *p);
extern int rip_neighbor_delete(struct prefix_ipv4 *p);

extern void rip_ecmp_disable(void);

extern int rip_create_socket(void);

extern int rip_redistribute_check(int);
extern void rip_redistribute_add(int type, int sub_type, struct prefix_ipv4 *p,
				 struct nexthop *nh, unsigned int metric,
				 unsigned char distance, route_tag_t tag);
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 *, uint8_t);
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 *,
				    uint32_t *);
extern int rip_offset_list_apply_out(struct prefix_ipv4 *, struct interface *,
				     uint32_t *);
extern void rip_offset_clean(void);

extern void rip_info_free(struct rip_info *);
extern struct rip_distance *rip_distance_new(void);
extern void rip_distance_free(struct rip_distance *rdistance);
extern uint8_t 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))

extern struct route_table *rip_distance_table;

/* Northbound. */
extern void rip_cli_init(void);
extern const struct frr_yang_module_info frr_ripd_info;

#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"
dd127197	26	#include "nexthop.h"
4a1ab8e4 DL	27	#include "rip_memory.h"
4a1ab8e4 DL	28
718e3744	29	/* RIP version number. */
	30	#define RIPv1 1
	31	#define RIPv2 2
f38a471c	32	/* N.B. stuff will break if
	33	(RIPv1 != RI_RIP_VERSION_1) \|\| (RIPv2 != RI_RIP_VERSION_2) */
	34
718e3744	35
	36	/* RIP command list. */
	37	#define RIP_REQUEST 1
	38	#define RIP_RESPONSE 2
	39	#define RIP_TRACEON 3 /* Obsolete */
	40	#define RIP_TRACEOFF 4 /* Obsolete */
	41	#define RIP_POLL 5
	42	#define RIP_POLL_ENTRY 6
	43	#define RIP_COMMAND_MAX 7
	44
	45	/* RIP metric infinity value.*/
	46	#define RIP_METRIC_INFINITY 16
	47
	48	/* Normal RIP packet min and max size. */
	49	#define RIP_PACKET_MINSIZ 4
	50	#define RIP_PACKET_MAXSIZ 512
	51
	52	#define RIP_HEADER_SIZE 4
	53	#define RIP_RTE_SIZE 20
	54
	55	/* Max count of routing table entry in one rip packet. */
6a7cff75	56	#define RIP_MAX_RTE ((RIP_PACKET_MAXSIZ - RIP_HEADER_SIZE) / RIP_RTE_SIZE)
718e3744	57
	58	/* RIP version 2 multicast address. */
	59	#ifndef INADDR_RIP_GROUP
	60	#define INADDR_RIP_GROUP 0xe0000009 /* 224.0.0.9 */
	61	#endif
	62
	63	/* RIP timers */
	64	#define RIP_UPDATE_TIMER_DEFAULT 30
	65	#define RIP_TIMEOUT_TIMER_DEFAULT 180
	66	#define RIP_GARBAGE_TIMER_DEFAULT 120
	67
	68	/* RIP peer timeout value. */
	69	#define RIP_PEER_TIMER_DEFAULT 180
	70
	71	/* RIP port number. */
	72	#define RIP_PORT_DEFAULT 520
	73	#define RIP_VTY_PORT 2602
718e3744	74
	75	/* Default configuration file name. */
	76	#define RIPD_DEFAULT_CONFIG "ripd.conf"
	77
	78	/* RIP route types. */
	79	#define RIP_ROUTE_RTE 0
	80	#define RIP_ROUTE_STATIC 1
	81	#define RIP_ROUTE_DEFAULT 2
	82	#define RIP_ROUTE_REDISTRIBUTE 3
	83	#define RIP_ROUTE_INTERFACE 4
	84
ca5e516c	85	/* RIPv2 special RTE family types */
	86	#define RIP_FAMILY_AUTH 0xffff
	87
	88	/* RIPv2 authentication types, for RIP_FAMILY_AUTH RTE's */
	89	#define RIP_NO_AUTH 0
	90	#define RIP_AUTH_DATA 1
	91	#define RIP_AUTH_SIMPLE_PASSWORD 2
	92	#define RIP_AUTH_MD5 3
	93
b14ee00b	94	/* RIPv2 Simple authentication */
	95	#define RIP_AUTH_SIMPLE_SIZE 16
	96
ca5e516c	97	/* RIPv2 MD5 authentication. */
718e3744	98	#define RIP_AUTH_MD5_SIZE 16
ca5e516c	99	#define RIP_AUTH_MD5_COMPAT_SIZE RIP_RTE_SIZE
718e3744	100
707656ec RW	101	/* YANG paths */
	102	#define RIP_INSTANCE "/frr-ripd:ripd/instance"
	103	#define RIP_IFACE "/frr-interface:lib/interface/frr-ripd:rip"
	104
718e3744	105	/* RIP structure. */
d62a17ae	106	struct rip {
	107	/* RIP socket. */
	108	int sock;
	109
	110	/* Default version of rip instance. */
	111	int version_send; /* version 1 or 2 (but not both) */
	112	int version_recv; /* version 1 or 2 or both */
	113
	114	/* Output buffer of RIP. */
	115	struct stream *obuf;
	116
	117	/* RIP routing information base. */
	118	struct route_table *table;
	119
	120	/* RIP only static routing information. */
	121	struct route_table *route;
	122
	123	/* RIP neighbor. */
	124	struct route_table *neighbor;
	125
	126	/* RIP threads. */
	127	struct thread *t_read;
	128
	129	/* Update and garbage timer. */
	130	struct thread *t_update;
	131
	132	/* Triggered update hack. */
	133	int trigger;
	134	struct thread *t_triggered_update;
	135	struct thread *t_triggered_interval;
	136
	137	/* RIP timer values. */
	138	unsigned long update_time;
	139	unsigned long timeout_time;
	140	unsigned long garbage_time;
	141
	142	/* RIP default metric. */
282ae30c	143	uint8_t default_metric;
d62a17ae	144
d62a17ae	145	/* RIP default distance. */
d7c0a89a	146	uint8_t distance;
d62a17ae	147	struct route_table *distance_table;
	148
	149	/* RIP ECMP flag */
edbf59d2	150	bool ecmp;
d62a17ae	151
	152	/* For redistribute route map. */
	153	struct {
	154	char *name;
	155	struct route_map *map;
	156	int metric_config;
d7c0a89a	157	uint32_t metric;
d62a17ae	158	} route_map[ZEBRA_ROUTE_MAX];
	159
	160	QOBJ_FIELDS
718e3744	161	};
f6eacff4	162	DECLARE_QOBJ_TYPE(rip)
718e3744	163
718e3744	164	/* RIP routing table entry which belong to rip_packet. */
d62a17ae	165	struct rte {
d7c0a89a QY	166	uint16_t family; /* Address family of this route. */
d7c0a89a QY	167	uint16_t tag; /* Route Tag which included in RIP2 packet. */
d62a17ae	168	struct in_addr prefix; /* Prefix of rip route. */
	169	struct in_addr mask; /* Netmask of rip route. */
	170	struct in_addr nexthop; /* Next hop of rip route. */
d7c0a89a	171	uint32_t metric; /* Metric value of rip route. */
718e3744	172	};
	173
	174	/* RIP packet structure. */
d62a17ae	175	struct rip_packet {
	176	unsigned char command; /* Command type of RIP packet. */
	177	unsigned char version; /* RIP version which coming from peer. */
	178	unsigned char pad1; /* Padding of RIP packet header. */
	179	unsigned char pad2; /* Same as above. */
	180	struct rte rte[1]; /* Address structure. */
718e3744	181	};
	182
	183	/* Buffer to read RIP packet. */
d62a17ae	184	union rip_buf {
	185	struct rip_packet rip_packet;
	186	char buf[RIP_PACKET_MAXSIZ];
718e3744	187	};
	188
	189	/* RIP route information. */
d62a17ae	190	struct rip_info {
	191	/* This route's type. */
	192	int type;
718e3744	193
d62a17ae	194	/* Sub type. */
d62a17ae	195	int sub_type;
718e3744	196
d62a17ae	197	/* RIP nexthop. */
dd127197	198	struct nexthop nh;
d62a17ae	199	struct in_addr from;
718e3744	200
d62a17ae	201	/* Metric of this route. */
d7c0a89a	202	uint32_t metric;
718e3744	203
d62a17ae	204	/* External metric of this route.
d62a17ae	205	if learnt from an externalm proto */
d7c0a89a	206	uint32_t external_metric;
fbf5d033	207
d62a17ae	208	/* Tag information of this route. */
d7c0a89a	209	uint16_t tag;
718e3744	210
d62a17ae	211	/* Flags of RIP route. */
718e3744	212	#define RIP_RTF_FIB 1
718e3744	213	#define RIP_RTF_CHANGED 2
d7c0a89a	214	uint8_t flags;
718e3744	215
d62a17ae	216	/* Garbage collect timer. */
	217	struct thread *t_timeout;
	218	struct thread *t_garbage_collect;
718e3744	219
d62a17ae	220	/* Route-map futures - this variables can be changed. */
d62a17ae	221	struct in_addr nexthop_out;
d7c0a89a QY	222	uint8_t metric_set;
	223	uint32_t metric_out;
	224	uint16_t tag_out;
d62a17ae	225	ifindex_t ifindex_out;
718e3744	226
d62a17ae	227	struct route_node *rp;
718e3744	228
d7c0a89a	229	uint8_t distance;
718e3744	230
718e3744	231	#ifdef NEW_RIP_TABLE
d62a17ae	232	struct rip_info *next;
d62a17ae	233	struct rip_info *prev;
718e3744	234	#endif /* NEW_RIP_TABLE */
	235	};
	236
16705130	237	typedef enum {
d62a17ae	238	RIP_NO_SPLIT_HORIZON = 0,
	239	RIP_SPLIT_HORIZON,
	240	RIP_SPLIT_HORIZON_POISONED_REVERSE
16705130	241	} split_horizon_policy_t;
16705130	242
718e3744	243	/* RIP specific interface configuration. */
d62a17ae	244	struct rip_interface {
	245	/* RIP is enabled on this interface. */
	246	int enable_network;
	247	int enable_interface;
718e3744	248
d62a17ae	249	/* RIP is running on this interface. */
d62a17ae	250	int running;
718e3744	251
d62a17ae	252	/* RIP version control. */
	253	int ri_send;
	254	int ri_receive;
718e3744	255
d62a17ae	256	/* RIPv2 broadcast mode */
d62a17ae	257	int v2_broadcast;
f90310cf	258
d62a17ae	259	/* RIPv2 authentication type. */
d62a17ae	260	int auth_type;
718e3744	261
d62a17ae	262	/* RIPv2 authentication string. */
d62a17ae	263	char *auth_str;
718e3744	264
d62a17ae	265	/* RIPv2 authentication key chain. */
d62a17ae	266	char *key_chain;
718e3744	267
d62a17ae	268	/* value to use for md5->auth_len */
d7c0a89a	269	uint8_t md5_auth_len;
ca5e516c	270
d62a17ae	271	/* Split horizon flag. */
	272	split_horizon_policy_t split_horizon;
	273	split_horizon_policy_t split_horizon_default;
718e3744	274
d62a17ae	275	/* For filter type slot. */
718e3744	276	#define RIP_FILTER_IN 0
	277	#define RIP_FILTER_OUT 1
	278	#define RIP_FILTER_MAX 2
	279
d62a17ae	280	/* Access-list. */
d62a17ae	281	struct access_list *list[RIP_FILTER_MAX];
718e3744	282
d62a17ae	283	/* Prefix-list. */
d62a17ae	284	struct prefix_list *prefix[RIP_FILTER_MAX];
718e3744	285
d62a17ae	286	/* Route-map. */
d62a17ae	287	struct route_map *routemap[RIP_FILTER_MAX];
16705130	288
d62a17ae	289	/* Wake up thread. */
d62a17ae	290	struct thread *t_wakeup;
718e3744	291
d62a17ae	292	/* Interface statistics. */
	293	int recv_badpackets;
	294	int recv_badroutes;
	295	int sent_updates;
718e3744	296
d62a17ae	297	/* Passive interface. */
d62a17ae	298	int passive;
718e3744	299	};
	300
	301	/* RIP peer information. */
d62a17ae	302	struct rip_peer {
	303	/* Peer address. */
	304	struct in_addr addr;
718e3744	305
d62a17ae	306	/* Peer RIP tag value. */
d62a17ae	307	int domain;
718e3744	308
d62a17ae	309	/* Last update time. */
d62a17ae	310	time_t uptime;
718e3744	311
d62a17ae	312	/* Peer RIP version. */
d7c0a89a	313	uint8_t version;
718e3744	314
d62a17ae	315	/* Statistics. */
	316	int recv_badpackets;
	317	int recv_badroutes;
718e3744	318
d62a17ae	319	/* Timeout thread. */
d62a17ae	320	struct thread *t_timeout;
718e3744	321	};
718e3744	322
23b23d8c RW	323	struct rip_distance {
	324	/* Distance value for the IP source prefix. */
	325	uint8_t distance;
	326
	327	/* Name of the access-list to be matched. */
	328	char *access_list;
	329	};
	330
d62a17ae	331	struct rip_md5_info {
d7c0a89a QY	332	uint16_t family;
	333	uint16_t type;
	334	uint16_t packet_len;
	335	uint8_t keyid;
	336	uint8_t auth_len;
	337	uint32_t sequence;
	338	uint32_t reserv1;
	339	uint32_t reserv2;
718e3744	340	};
718e3744	341
d62a17ae	342	struct rip_md5_data {
d7c0a89a QY	343	uint16_t family;
	344	uint16_t type;
	345	uint8_t digest[16];
718e3744	346	};
	347
	348	/* RIP accepet/announce methods. */
	349	#define RI_RIP_UNSPEC 0
	350	#define RI_RIP_VERSION_1 1
	351	#define RI_RIP_VERSION_2 2
	352	#define RI_RIP_VERSION_1_AND_2 3
6aec4b41	353	#define RI_RIP_VERSION_NONE 4
f38a471c	354	/* N.B. stuff will break if
f38a471c	355	(RIPv1 != RI_RIP_VERSION_1) \|\| (RIPv2 != RI_RIP_VERSION_2) */
718e3744	356
718e3744	357	/* RIP event. */
d62a17ae	358	enum rip_event {
	359	RIP_READ,
	360	RIP_UPDATE_EVENT,
	361	RIP_TRIGGERED_UPDATE,
718e3744	362	};
	363
	364	/* Macro for timer turn on. */
ffa2c898	365	#define RIP_TIMER_ON(T,F,V) thread_add_timer (master, (F), rinfo, (V), &(T))
718e3744	366
718e3744	367	/* Macro for timer turn off. */
8578874d	368	#define RIP_TIMER_OFF(X) THREAD_TIMER_OFF(X)
718e3744	369
718e3744	370	/* Prototypes. */
d62a17ae	371	extern void rip_init(void);
	372	extern void rip_reset(void);
	373	extern void rip_clean(void);
	374	extern void rip_clean_network(void);
	375	extern void rip_interfaces_clean(void);
	376	extern void rip_interfaces_reset(void);
	377	extern void rip_passive_nondefault_clean(void);
	378	extern void rip_if_init(void);
	379	extern void rip_if_down_all(void);
	380	extern void rip_route_map_init(void);
	381	extern void rip_route_map_reset(void);
4140ca4d	382	extern void rip_zclient_init(struct thread_master *);
a2f9eb82	383	extern void rip_zclient_stop(void);
d62a17ae	384	extern void rip_zclient_reset(void);
	385	extern void rip_offset_init(void);
	386	extern int if_check_address(struct in_addr addr);
8c9226c2	387	extern int rip_create(int socket);
d62a17ae	388
d7c0a89a	389	extern int rip_request_send(struct sockaddr_in , struct interface , uint8_t,
d62a17ae	390	struct connected *);
d62a17ae	391	extern int rip_neighbor_lookup(struct sockaddr_in *);
f0ab22fb RW	392	extern int rip_neighbor_add(struct prefix_ipv4 *p);
f0ab22fb RW	393	extern int rip_neighbor_delete(struct prefix_ipv4 *p);
d62a17ae	394
edbf59d2 RW	395	extern void rip_ecmp_disable(void);
edbf59d2 RW	396
8c9226c2 RW	397	extern int rip_create_socket(void);
8c9226c2 RW	398
d62a17ae	399	extern int rip_redistribute_check(int);
996c9314 LB	400	extern void rip_redistribute_add(int type, int sub_type, struct prefix_ipv4 *p,
	401	struct nexthop *nh, unsigned int metric,
	402	unsigned char distance, route_tag_t tag);
d62a17ae	403	extern void rip_redistribute_delete(int, int, struct prefix_ipv4 *, ifindex_t);
	404	extern void rip_redistribute_withdraw(int);
	405	extern void rip_zebra_ipv4_add(struct route_node *);
	406	extern void rip_zebra_ipv4_delete(struct route_node *);
	407	extern void rip_interface_multicast_set(int, struct connected *);
	408	extern void rip_distribute_update_interface(struct interface *);
	409	extern void rip_if_rmap_update_interface(struct interface *);
	410
	411	extern int config_write_rip_network(struct vty *, int);
	412	extern int config_write_rip_offset_list(struct vty *);
	413	extern int config_write_rip_redistribute(struct vty *, int);
	414
	415	extern void rip_peer_init(void);
d7c0a89a	416	extern void rip_peer_update(struct sockaddr_in *, uint8_t);
d62a17ae	417	extern void rip_peer_bad_route(struct sockaddr_in *);
	418	extern void rip_peer_bad_packet(struct sockaddr_in *);
	419	extern void rip_peer_display(struct vty *);
	420	extern struct rip_peer rip_peer_lookup(struct in_addr );
	421	extern struct rip_peer rip_peer_lookup_next(struct in_addr );
	422
	423	extern int rip_offset_list_apply_in(struct prefix_ipv4 , struct interface ,
d7c0a89a	424	uint32_t *);
d62a17ae	425	extern int rip_offset_list_apply_out(struct prefix_ipv4 , struct interface ,
d7c0a89a	426	uint32_t *);
d62a17ae	427	extern void rip_offset_clean(void);
	428
	429	extern void rip_info_free(struct rip_info *);
23b23d8c RW	430	extern struct rip_distance *rip_distance_new(void);
23b23d8c RW	431	extern void rip_distance_free(struct rip_distance *rdistance);
d7c0a89a	432	extern uint8_t rip_distance_apply(struct rip_info *);
d62a17ae	433	extern void rip_redistribute_clean(void);
	434
	435	extern struct rip_info rip_ecmp_add(struct rip_info );
	436	extern struct rip_info rip_ecmp_replace(struct rip_info );
	437	extern struct rip_info rip_ecmp_delete(struct rip_info );
bce8e868	438
718e3744	439	/* There is only one rip strucutre. */
	440	extern struct rip *rip;
	441
32b5a493 DS	442	extern struct zebra_privs_t ripd_privs;
32b5a493 DS	443
718e3744	444	/* Master thread strucutre. */
	445	extern struct thread_master *master;
	446
	447	/* RIP statistics for SNMP. */
	448	extern long rip_global_route_changes;
	449	extern long rip_global_queries;
3012671f	450
d62a17ae	451	DECLARE_HOOK(rip_ifaddr_add, (struct connected * ifc), (ifc))
d62a17ae	452	DECLARE_HOOK(rip_ifaddr_del, (struct connected * ifc), (ifc))
3012671f	453
23b23d8c RW	454	extern struct route_table *rip_distance_table;
23b23d8c RW	455
707656ec RW	456	/* Northbound. */
	457	extern void rip_cli_init(void);
	458	extern const struct frr_yang_module_info frr_ripd_info;
	459
718e3744	460	#endif /* _ZEBRA_RIP_H */