[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 "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 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 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. */
	uint32_t update_time;
	uint32_t timeout_time;
	uint32_t 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;

	/* Are we in passive-interface default mode? */
	bool passive_default;

	/* For redistribute route map. */
	struct {
		char *name;
		struct route_map *map;
		bool metric_config;
		uint8_t metric;
	} route_map[ZEBRA_ROUTE_MAX];
};

/* 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 */
	bool 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 */
	int md5_auth_len;

	/* Split horizon flag. */
	split_horizon_policy_t split_horizon;

/* 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)

#define RIP_OFFSET_LIST_IN  0
#define RIP_OFFSET_LIST_OUT 1
#define RIP_OFFSET_LIST_MAX 2

struct rip_offset_list {
	char *ifname;

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

/* Prototypes. */
extern void rip_init(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 int rip_passive_nondefault_set(const char *ifname);
extern int rip_passive_nondefault_unset(const char *ifname);
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 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 int rip_enable_network_add(struct prefix *p);
extern int rip_enable_network_delete(struct prefix *p);
extern int rip_enable_if_add(const char *ifname);
extern int rip_enable_if_delete(const char *ifname);

extern void rip_event(enum rip_event, int);
extern void rip_ecmp_disable(void);

extern int rip_create_socket(void);

extern int rip_redistribute_check(int);
extern void rip_redistribute_conf_update(int type);
extern void rip_redistribute_conf_delete(int type);
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 rip_show_network_config(struct vty *);
extern void rip_show_redistribute_config(struct vty *);

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 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 int rip_route_rte(struct rip_info *rinfo);
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 *);

extern struct rip_offset_list *rip_offset_list_new(const char *ifname);
extern void offset_list_del(struct rip_offset_list *offset);
extern struct rip_offset_list *rip_offset_list_lookup(const char *ifname);
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_init(void);
extern void rip_offset_clean(void);

/* YANG notifications */
extern void ripd_notif_send_auth_type_failure(const char *ifname);
extern void ripd_notif_send_auth_failure(const char *ifname);

/* 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 list *peer_list;
extern struct route_table *rip_distance_table;
extern vector Vrip_passive_nondefault;

/* 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
3012671f	24	#include "hook.h"
dd127197	25	#include "nexthop.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
718e3744	62	/* RIP peer timeout value. */
	63	#define RIP_PEER_TIMER_DEFAULT 180
	64
	65	/* RIP port number. */
	66	#define RIP_PORT_DEFAULT 520
	67	#define RIP_VTY_PORT 2602
718e3744	68
	69	/* Default configuration file name. */
	70	#define RIPD_DEFAULT_CONFIG "ripd.conf"
	71
	72	/* RIP route types. */
	73	#define RIP_ROUTE_RTE 0
	74	#define RIP_ROUTE_STATIC 1
	75	#define RIP_ROUTE_DEFAULT 2
	76	#define RIP_ROUTE_REDISTRIBUTE 3
	77	#define RIP_ROUTE_INTERFACE 4
	78
ca5e516c	79	/* RIPv2 special RTE family types */
	80	#define RIP_FAMILY_AUTH 0xffff
	81
	82	/* RIPv2 authentication types, for RIP_FAMILY_AUTH RTE's */
	83	#define RIP_NO_AUTH 0
	84	#define RIP_AUTH_DATA 1
	85	#define RIP_AUTH_SIMPLE_PASSWORD 2
	86	#define RIP_AUTH_MD5 3
	87
b14ee00b	88	/* RIPv2 Simple authentication */
	89	#define RIP_AUTH_SIMPLE_SIZE 16
	90
ca5e516c	91	/* RIPv2 MD5 authentication. */
718e3744	92	#define RIP_AUTH_MD5_SIZE 16
ca5e516c	93	#define RIP_AUTH_MD5_COMPAT_SIZE RIP_RTE_SIZE
718e3744	94
707656ec RW	95	/* YANG paths */
	96	#define RIP_INSTANCE "/frr-ripd:ripd/instance"
	97	#define RIP_IFACE "/frr-interface:lib/interface/frr-ripd:rip"
	98
718e3744	99	/* RIP structure. */
d62a17ae	100	struct rip {
	101	/* RIP socket. */
	102	int sock;
	103
	104	/* Default version of rip instance. */
	105	int version_send; /* version 1 or 2 (but not both) */
	106	int version_recv; /* version 1 or 2 or both */
	107
	108	/* Output buffer of RIP. */
	109	struct stream *obuf;
	110
	111	/* RIP routing information base. */
	112	struct route_table *table;
	113
d62a17ae	114	/* RIP neighbor. */
	115	struct route_table *neighbor;
	116
	117	/* RIP threads. */
	118	struct thread *t_read;
	119
	120	/* Update and garbage timer. */
	121	struct thread *t_update;
	122
	123	/* Triggered update hack. */
	124	int trigger;
	125	struct thread *t_triggered_update;
	126	struct thread *t_triggered_interval;
	127
	128	/* RIP timer values. */
b745780b RW	129	uint32_t update_time;
	130	uint32_t timeout_time;
	131	uint32_t garbage_time;
d62a17ae	132
d62a17ae	133	/* RIP default metric. */
282ae30c	134	uint8_t default_metric;
d62a17ae	135
d62a17ae	136	/* RIP default distance. */
d7c0a89a	137	uint8_t distance;
d62a17ae	138	struct route_table *distance_table;
	139
	140	/* RIP ECMP flag */
edbf59d2	141	bool ecmp;
d62a17ae	142
44f2f852 RW	143	/* Are we in passive-interface default mode? */
	144	bool passive_default;
	145
d62a17ae	146	/* For redistribute route map. */
	147	struct {
	148	char *name;
	149	struct route_map *map;
908f0020 RW	150	bool metric_config;
908f0020 RW	151	uint8_t metric;
d62a17ae	152	} route_map[ZEBRA_ROUTE_MAX];
718e3744	153	};
	154
	155	/* RIP routing table entry which belong to rip_packet. */
d62a17ae	156	struct rte {
d7c0a89a QY	157	uint16_t family; /* Address family of this route. */
d7c0a89a QY	158	uint16_t tag; /* Route Tag which included in RIP2 packet. */
d62a17ae	159	struct in_addr prefix; /* Prefix of rip route. */
	160	struct in_addr mask; /* Netmask of rip route. */
	161	struct in_addr nexthop; /* Next hop of rip route. */
d7c0a89a	162	uint32_t metric; /* Metric value of rip route. */
718e3744	163	};
	164
	165	/* RIP packet structure. */
d62a17ae	166	struct rip_packet {
	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. */
718e3744	172	};
	173
	174	/* Buffer to read RIP packet. */
d62a17ae	175	union rip_buf {
	176	struct rip_packet rip_packet;
	177	char buf[RIP_PACKET_MAXSIZ];
718e3744	178	};
	179
	180	/* RIP route information. */
d62a17ae	181	struct rip_info {
	182	/* This route's type. */
	183	int type;
718e3744	184
d62a17ae	185	/* Sub type. */
d62a17ae	186	int sub_type;
718e3744	187
d62a17ae	188	/* RIP nexthop. */
dd127197	189	struct nexthop nh;
d62a17ae	190	struct in_addr from;
718e3744	191
d62a17ae	192	/* Metric of this route. */
d7c0a89a	193	uint32_t metric;
718e3744	194
d62a17ae	195	/* External metric of this route.
d62a17ae	196	if learnt from an externalm proto */
d7c0a89a	197	uint32_t external_metric;
fbf5d033	198
d62a17ae	199	/* Tag information of this route. */
d7c0a89a	200	uint16_t tag;
718e3744	201
d62a17ae	202	/* Flags of RIP route. */
718e3744	203	#define RIP_RTF_FIB 1
718e3744	204	#define RIP_RTF_CHANGED 2
d7c0a89a	205	uint8_t flags;
718e3744	206
d62a17ae	207	/* Garbage collect timer. */
	208	struct thread *t_timeout;
	209	struct thread *t_garbage_collect;
718e3744	210
d62a17ae	211	/* Route-map futures - this variables can be changed. */
d62a17ae	212	struct in_addr nexthop_out;
d7c0a89a QY	213	uint8_t metric_set;
	214	uint32_t metric_out;
	215	uint16_t tag_out;
d62a17ae	216	ifindex_t ifindex_out;
718e3744	217
d62a17ae	218	struct route_node *rp;
718e3744	219
d7c0a89a	220	uint8_t distance;
718e3744	221
718e3744	222	#ifdef NEW_RIP_TABLE
d62a17ae	223	struct rip_info *next;
d62a17ae	224	struct rip_info *prev;
718e3744	225	#endif /* NEW_RIP_TABLE */
	226	};
	227
16705130	228	typedef enum {
d62a17ae	229	RIP_NO_SPLIT_HORIZON = 0,
	230	RIP_SPLIT_HORIZON,
	231	RIP_SPLIT_HORIZON_POISONED_REVERSE
16705130	232	} split_horizon_policy_t;
16705130	233
718e3744	234	/* RIP specific interface configuration. */
d62a17ae	235	struct rip_interface {
	236	/* RIP is enabled on this interface. */
	237	int enable_network;
	238	int enable_interface;
718e3744	239
d62a17ae	240	/* RIP is running on this interface. */
d62a17ae	241	int running;
718e3744	242
d62a17ae	243	/* RIP version control. */
	244	int ri_send;
	245	int ri_receive;
718e3744	246
d62a17ae	247	/* RIPv2 broadcast mode */
94b117b2	248	bool v2_broadcast;
f90310cf	249
d62a17ae	250	/* RIPv2 authentication type. */
d62a17ae	251	int auth_type;
718e3744	252
d62a17ae	253	/* RIPv2 authentication string. */
d62a17ae	254	char *auth_str;
718e3744	255
d62a17ae	256	/* RIPv2 authentication key chain. */
d62a17ae	257	char *key_chain;
718e3744	258
d62a17ae	259	/* value to use for md5->auth_len */
94b117b2	260	int md5_auth_len;
ca5e516c	261
d62a17ae	262	/* Split horizon flag. */
d62a17ae	263	split_horizon_policy_t split_horizon;
718e3744	264
d62a17ae	265	/* For filter type slot. */
718e3744	266	#define RIP_FILTER_IN 0
	267	#define RIP_FILTER_OUT 1
	268	#define RIP_FILTER_MAX 2
	269
d62a17ae	270	/* Access-list. */
d62a17ae	271	struct access_list *list[RIP_FILTER_MAX];
718e3744	272
d62a17ae	273	/* Prefix-list. */
d62a17ae	274	struct prefix_list *prefix[RIP_FILTER_MAX];
718e3744	275
d62a17ae	276	/* Route-map. */
d62a17ae	277	struct route_map *routemap[RIP_FILTER_MAX];
16705130	278
d62a17ae	279	/* Wake up thread. */
d62a17ae	280	struct thread *t_wakeup;
718e3744	281
d62a17ae	282	/* Interface statistics. */
	283	int recv_badpackets;
	284	int recv_badroutes;
	285	int sent_updates;
718e3744	286
d62a17ae	287	/* Passive interface. */
d62a17ae	288	int passive;
718e3744	289	};
	290
	291	/* RIP peer information. */
d62a17ae	292	struct rip_peer {
	293	/* Peer address. */
	294	struct in_addr addr;
718e3744	295
d62a17ae	296	/* Peer RIP tag value. */
d62a17ae	297	int domain;
718e3744	298
d62a17ae	299	/* Last update time. */
d62a17ae	300	time_t uptime;
718e3744	301
d62a17ae	302	/* Peer RIP version. */
d7c0a89a	303	uint8_t version;
718e3744	304
d62a17ae	305	/* Statistics. */
	306	int recv_badpackets;
	307	int recv_badroutes;
718e3744	308
d62a17ae	309	/* Timeout thread. */
d62a17ae	310	struct thread *t_timeout;
718e3744	311	};
718e3744	312
23b23d8c RW	313	struct rip_distance {
	314	/* Distance value for the IP source prefix. */
	315	uint8_t distance;
	316
	317	/* Name of the access-list to be matched. */
	318	char *access_list;
	319	};
	320
d62a17ae	321	struct rip_md5_info {
d7c0a89a QY	322	uint16_t family;
	323	uint16_t type;
	324	uint16_t packet_len;
	325	uint8_t keyid;
	326	uint8_t auth_len;
	327	uint32_t sequence;
	328	uint32_t reserv1;
	329	uint32_t reserv2;
718e3744	330	};
718e3744	331
d62a17ae	332	struct rip_md5_data {
d7c0a89a QY	333	uint16_t family;
	334	uint16_t type;
	335	uint8_t digest[16];
718e3744	336	};
	337
	338	/* RIP accepet/announce methods. */
	339	#define RI_RIP_UNSPEC 0
	340	#define RI_RIP_VERSION_1 1
	341	#define RI_RIP_VERSION_2 2
	342	#define RI_RIP_VERSION_1_AND_2 3
6aec4b41	343	#define RI_RIP_VERSION_NONE 4
f38a471c	344	/* N.B. stuff will break if
f38a471c	345	(RIPv1 != RI_RIP_VERSION_1) \|\| (RIPv2 != RI_RIP_VERSION_2) */
718e3744	346
718e3744	347	/* RIP event. */
d62a17ae	348	enum rip_event {
	349	RIP_READ,
	350	RIP_UPDATE_EVENT,
	351	RIP_TRIGGERED_UPDATE,
718e3744	352	};
	353
	354	/* Macro for timer turn on. */
ffa2c898	355	#define RIP_TIMER_ON(T,F,V) thread_add_timer (master, (F), rinfo, (V), &(T))
718e3744	356
718e3744	357	/* Macro for timer turn off. */
8578874d	358	#define RIP_TIMER_OFF(X) THREAD_TIMER_OFF(X)
718e3744	359
8c942f65 RW	360	#define RIP_OFFSET_LIST_IN 0
	361	#define RIP_OFFSET_LIST_OUT 1
	362	#define RIP_OFFSET_LIST_MAX 2
	363
	364	struct rip_offset_list {
	365	char *ifname;
	366
	367	struct {
	368	char *alist_name;
	369	/* struct access_list alist; /
	370	uint8_t metric;
	371	} direct[RIP_OFFSET_LIST_MAX];
	372	};
	373
718e3744	374	/* Prototypes. */
d62a17ae	375	extern void rip_init(void);
d62a17ae	376	extern void rip_clean(void);
	377	extern void rip_clean_network(void);
	378	extern void rip_interfaces_clean(void);
	379	extern void rip_interfaces_reset(void);
44f2f852 RW	380	extern int rip_passive_nondefault_set(const char *ifname);
44f2f852 RW	381	extern int rip_passive_nondefault_unset(const char *ifname);
d62a17ae	382	extern void rip_passive_nondefault_clean(void);
	383	extern void rip_if_init(void);
	384	extern void rip_if_down_all(void);
	385	extern void rip_route_map_init(void);
	386	extern void rip_route_map_reset(void);
4140ca4d	387	extern void rip_zclient_init(struct thread_master *);
a2f9eb82	388	extern void rip_zclient_stop(void);
d62a17ae	389	extern void rip_zclient_reset(void);
d62a17ae	390	extern int if_check_address(struct in_addr addr);
8c9226c2	391	extern int rip_create(int socket);
d62a17ae	392
d7c0a89a	393	extern int rip_request_send(struct sockaddr_in , struct interface , uint8_t,
d62a17ae	394	struct connected *);
d62a17ae	395	extern int rip_neighbor_lookup(struct sockaddr_in *);
f0ab22fb RW	396	extern int rip_neighbor_add(struct prefix_ipv4 *p);
f0ab22fb RW	397	extern int rip_neighbor_delete(struct prefix_ipv4 *p);
d62a17ae	398
3d7a1be8 RW	399	extern int rip_enable_network_add(struct prefix *p);
	400	extern int rip_enable_network_delete(struct prefix *p);
	401	extern int rip_enable_if_add(const char *ifname);
	402	extern int rip_enable_if_delete(const char *ifname);
	403
b745780b	404	extern void rip_event(enum rip_event, int);
edbf59d2 RW	405	extern void rip_ecmp_disable(void);
edbf59d2 RW	406
8c9226c2 RW	407	extern int rip_create_socket(void);
8c9226c2 RW	408
d62a17ae	409	extern int rip_redistribute_check(int);
908f0020 RW	410	extern void rip_redistribute_conf_update(int type);
908f0020 RW	411	extern void rip_redistribute_conf_delete(int type);
996c9314 LB	412	extern void rip_redistribute_add(int type, int sub_type, struct prefix_ipv4 *p,
	413	struct nexthop *nh, unsigned int metric,
	414	unsigned char distance, route_tag_t tag);
d62a17ae	415	extern void rip_redistribute_delete(int, int, struct prefix_ipv4 *, ifindex_t);
	416	extern void rip_redistribute_withdraw(int);
	417	extern void rip_zebra_ipv4_add(struct route_node *);
	418	extern void rip_zebra_ipv4_delete(struct route_node *);
	419	extern void rip_interface_multicast_set(int, struct connected *);
	420	extern void rip_distribute_update_interface(struct interface *);
	421	extern void rip_if_rmap_update_interface(struct interface *);
	422
44f2f852	423	extern int rip_show_network_config(struct vty *);
908f0020	424	extern void rip_show_redistribute_config(struct vty *);
d62a17ae	425
d62a17ae	426	extern void rip_peer_init(void);
d7c0a89a	427	extern void rip_peer_update(struct sockaddr_in *, uint8_t);
d62a17ae	428	extern void rip_peer_bad_route(struct sockaddr_in *);
	429	extern void rip_peer_bad_packet(struct sockaddr_in *);
	430	extern void rip_peer_display(struct vty *);
	431	extern struct rip_peer rip_peer_lookup(struct in_addr );
	432	extern struct rip_peer rip_peer_lookup_next(struct in_addr );
	433
d62a17ae	434	extern void rip_info_free(struct rip_info *);
23b23d8c RW	435	extern struct rip_distance *rip_distance_new(void);
23b23d8c RW	436	extern void rip_distance_free(struct rip_distance *rdistance);
d7c0a89a	437	extern uint8_t rip_distance_apply(struct rip_info *);
d62a17ae	438	extern void rip_redistribute_clean(void);
d62a17ae	439
1137aef4	440	extern int rip_route_rte(struct rip_info *rinfo);
d62a17ae	441	extern struct rip_info rip_ecmp_add(struct rip_info );
	442	extern struct rip_info rip_ecmp_replace(struct rip_info );
	443	extern struct rip_info rip_ecmp_delete(struct rip_info );
bce8e868	444
8c942f65 RW	445	extern struct rip_offset_list rip_offset_list_new(const char ifname);
	446	extern void offset_list_del(struct rip_offset_list *offset);
	447	extern struct rip_offset_list rip_offset_list_lookup(const char ifname);
	448	extern int rip_offset_list_apply_in(struct prefix_ipv4 , struct interface ,
	449	uint32_t *);
	450	extern int rip_offset_list_apply_out(struct prefix_ipv4 , struct interface ,
	451	uint32_t *);
	452	extern void rip_offset_init(void);
	453	extern void rip_offset_clean(void);
	454
fe339c95 RW	455	/* YANG notifications */
	456	extern void ripd_notif_send_auth_type_failure(const char *ifname);
	457	extern void ripd_notif_send_auth_failure(const char *ifname);
	458
718e3744	459	/* There is only one rip strucutre. */
	460	extern struct rip *rip;
	461
32b5a493 DS	462	extern struct zebra_privs_t ripd_privs;
32b5a493 DS	463
718e3744	464	/* Master thread strucutre. */
	465	extern struct thread_master *master;
	466
	467	/* RIP statistics for SNMP. */
	468	extern long rip_global_route_changes;
	469	extern long rip_global_queries;
3012671f	470
d62a17ae	471	DECLARE_HOOK(rip_ifaddr_add, (struct connected * ifc), (ifc))
d62a17ae	472	DECLARE_HOOK(rip_ifaddr_del, (struct connected * ifc), (ifc))
3012671f	473
5c1a8497	474	extern struct list *peer_list;
23b23d8c	475	extern struct route_table *rip_distance_table;
44f2f852	476	extern vector Vrip_passive_nondefault;
23b23d8c	477
707656ec RW	478	/* Northbound. */
	479	extern void rip_cli_init(void);
	480	extern const struct frr_yang_module_info frr_ripd_info;
	481
718e3744	482	#endif /* _ZEBRA_RIP_H */