[thirdparty/bird.git] / proto / ospf / ospf.h

/*
 *	BIRD -- OSPF
 *
 *	(c) 1999 Ondrej Filip <feela@network.cz>
 *
 *	Can be freely distributed and used under the terms of the GNU GPL.
 */

#ifndef _BIRD_OSPF_H_
#define _BIRD_OSPF_H_

#define LOCAL_DEBUG

#define SIPH 64		/* FIXME Size Of IP header */

#include "nest/bird.h"

#include "lib/checksum.h"
#include "lib/ip.h"
#include "lib/lists.h"
#include "lib/slists.h"
#include "lib/socket.h"
#include "lib/timer.h"
#include "lib/resource.h"
#include "nest/protocol.h"
#include "nest/iface.h"
#include "nest/route.h"
#include "conf/conf.h"
#include <string.h>

#define OSPF_PROTO 89
#ifndef IPV6
#define OSPF_VERSION 2
#define AllSPFRouters ipa_from_u32(0xe0000005)	/* 224.0.0.5 */
#define AllDRouters ipa_from_u32(0xe0000006)	/* 224.0.0.6 */
#define DEFAULTDES ipa_from_u32(0)
#else
#error Multicast address not defined in IPv6
#endif


#define LSREFRESHTIME 1800	/* 30 minutes */
#define MINLSINTERVAL 5
#define MINLSARRIVAL 1
#define LSINFINITY 0xffff	/* RFC says 0xffffff ??? */
#define AGINGDELTA 20		/* FIXME What's good value? */

struct ospf_config {
  struct proto_config c;
  u32 area;		/* FIXME: Area ID  !!! This is wrong !!!
                         * Should respect interface */
};

struct ospf_iface {
  node n;
  struct proto_ospf *proto;
  struct iface *iface;	/* Nest's iface */
  struct ospf_area *oa;
  u32 an;		/* Area number */
  sock *hello_sk;	/* Hello socket */
  sock *dr_sk;		/* For states DR or BACKUP */
  sock *ip_sk;		/* IP socket (for DD ...) */
  list neigh_list;	/* List of neigbours */
  u16 cost;		/* Cost of iface */
  u16 rxmtint;		/* number of seconds between LSA retransmissions */
  u16 iftransdelay;	/* The estimated number of seconds it takes to
			   transmit a Link State Update Packet over this
			   interface.  LSAs contained in the update */
  u8 priority;		/* A router priority for DR election */
  u16 helloint;		/* number of seconds between hello sending */
  u16 waitint;		/* number of sec before changing state from wait */
  u32 deadc;		/* after "deadint" missing hellos is router dead */
  u16 autype;
  u8 aukey[8];
  u8 options;
  ip_addr drip;		/* Designated router */
  u32 drid;
  ip_addr bdrip;	/* Backup DR */
  u32 bdrid;
  u8 type;		/* OSPF view of type */
#define OSPF_IT_BCAST 0
#define OSPF_IT_NBMA 1
#define OSPF_IT_PTP 2
#define OSPF_IT_VLINK 3
  u8 state;		/* Interface state machine */
#define OSPF_IS_DOWN 0		/* Not working */
#define OSPF_IS_LOOP 1		/* Should never happen */
#define OSPF_IS_WAITING 2	/* Waiting for Wait timer */
#define OSPF_IS_PTP 3		/* PTP operational */
#define OSPF_IS_DROTHER 4	/* I'm on BCAST or NBMA and I'm not DR */
#define OSPF_IS_BACKUP 5	/* I'm BDR */
#define OSPF_IS_DR 6		/* I'm DR */
  timer *wait_timer;		/* WAIT timer */
  timer *hello_timer;		/* HELLOINT timer */
/* Default values for interface parameters */
#define COST_D 10
#define RXMTINT_D 5
#define IFTRANSDELAY_D 1
#define PRIORITY_D 1
#define HELLOINT_D 10
#define DEADC_D 4
#define WAIT_DMH 3	/* Value of Wait timer - not found it in RFC 
			 * - using 3*HELLO
			 */
};

struct ospf_packet {
  u8 version;
  u8 type;
#define HELLO 1 /* Hello */
#define DBDES 2 /* Database description */
#define LSREQ 3 /* Link state request */
#define LSUPD 4 /* Link state update */
#define LSACK 5 /* Link state acknowledgement */
  u16 length;
  u32 routerid;
  u32 areaid;
#define BACKBONE 0
  u16 checksum;
  u16 autype;
  u8 authetication[8];
};

struct ospf_hello_packet {
  struct ospf_packet ospf_packet;
  ip_addr netmask;
  u16 helloint;
  u8 options;
  u8 priority;
  u32 deadint;
  u32 dr;
  u32 bdr;
};

struct immsb {
  u8 ms:1;
  u8 m:1;
  u8 i:1;
  u8 padding:5;
};

union imms {
  u8 byte;
  struct immsb bit;
};

struct ospf_dbdes_packet {
  struct ospf_packet ospf_packet;
  u16 iface_mtu;
  u8 options;
  union imms imms;		/* I, M, MS bits */
#define DBDES_MS 1
#define DBDES_M 2
#define DBDES_I 4
  u32 ddseq;
};


struct ospf_lsa_header {
  u16 age;	/* LS Age */
#define LSA_MAXAGE 3600                 /* 1 hour */
#define LSA_CHECKAGE 300                /* 5 minutes */
#define LSA_MAXAGEDIFF 900              /* 15 minutes */
  u8 options;
  u8 type;
  u32 id;
#define LSA_T_RT 1
#define LSA_T_NET 2
#define LSA_T_SUM_NET 3
#define LSA_T_SUM_RT 4
#define LSA_T_EXT 5
  u32 rt;		/* Advertising router */
  s32 sn;		/* LS Sequence number */
#define LSA_INITSEQNO 0x80000001
#define LSA_MAXSEQNO 0x7fffffff
  u16 checksum;
  u16 length;  
};

struct ospf_lsa_rt {
  u8 VEB;
#define LSA_RT_V 5
#define LSA_RT_E 6
#define LSA_RT_B 7
  u8 padding;
  u16 links;
};

struct ospf_lsa_rt_link {
  u32 id;
  u32 data;
  u8 type;
#define LSART_PTP 1
#define LSART_NET 2
#define LSART_STUB 3
#define LSART_VLNK 4
  u8 notos;
  u16 metric;
};

struct ospf_lsa_rt_link_tos {	/* Actually we ignore TOS. This is useless */
  u8 tos;
  u8 padding;
  u16 metric;
};

struct ospf_lsa_net {
  ip_addr netmask;
};

struct ospf_lsa_summ {
  ip_addr netmask;
};

struct ospf_lsa_summ_net {
  u8 tos;
  u8 padding;
  u16 metric;
};

struct ospf_lsa_ext {
  ip_addr netmask;
};

struct ospf_lsa_ext_tos {
  u8 etos;
  u8 padding;
  u16 metric;
  u32 fwaddr;
  u32 tag;
};

struct ospf_lsreq_packet {
  struct ospf_packet ospf_packet;
};

struct ospf_lsreq_header {
  u16 padd1;
  u8 padd2;
  u8 type;
  u32 id;
  u32 rt;		/* Advertising router */
};

struct l_lsr_head {
  node n;
  struct ospf_lsreq_header lsh;
};

struct ospf_lsupd_packet {
  struct ospf_packet ospf_packet;
  u32 lsano;		/* Number of LSA's */
};

struct ospf_lsack_packet {
  struct ospf_packet ospf_packet;
};


struct ospf_neighbor
{
  node n;
  struct ospf_iface *ifa;
  u8 state;
#define NEIGHBOR_DOWN 0
#define NEIGHBOR_ATTEMPT 1
#define NEIGHBOR_INIT 2
#define NEIGHBOR_2WAY 3
#define NEIGHBOR_EXSTART 4
#define NEIGHBOR_EXCHANGE 5
#define NEIGHBOR_LOADING 6
#define NEIGHBOR_FULL 7
  timer *inactim;	/* Inactivity timer */
  union imms imms;		/* I, M, Master/slave received */
  u32 dds;		/* DD Sequence number being sent */
  u32 ddr;		/* last Dat Des packet received */
  union imms myimms;		/* I, M Master/slave */
  u32 rid;		/* Router ID */
  ip_addr ip;		/* IP of it's interface */
  u8 priority;		/* Priority */
  u8 options;		/* Options received */
  u32 dr;		/* Neigbour's idea of DR */
  u32 bdr;		/* Neigbour's idea of BDR */
  u8 adj;		/* built adjacency? */
  siterator dbsi;	/* Database summary list iterator */
  slist lsrql;		/* Link state request */
  struct top_graph *lsrqh;		/* LSA graph */
  siterator lsrqi;
  slist lsrtl;		/* Link state retransmission list */
  siterator lsrti;
  struct top_graph *lsrth;
  void *ldbdes;		/* Last database description packet */
  timer *rxmt_timer;	/* RXMT timer */
  timer *lsrr_timer;	/* Link state requiest retransmition timer */
  list ackl;
  timer *ackd_timer;	/* Delayed ack timer */
};

/* Definitions for interface state machine */
#define ISM_UP 0	/* Interface Up */
#define ISM_WAITF 1	/* Wait timer fired */
#define ISM_BACKS 2	/* Backup seen */
#define ISM_NEICH 3	/* Neighbor change */
#define ISM_LOOP 4	/* Loop indicated */
#define ISM_UNLOOP 5	/* Unloop indicated */
#define ISM_DOWN 6	/* Interface down */

/* Definitions for neighbor state machine */
#define INM_HELLOREC 0	/* Hello Received */
#define INM_START 1	/* Neighbor start - for NBMA */
#define INM_2WAYREC 2	/* 2-Way received */
#define INM_NEGDONE 3	/* Negotiation done */
#define INM_EXDONE 4	/* Exchange done */
#define INM_BADLSREQ 5	/* Bad LS Request */
#define INM_LOADDONE 6	/* Load done */
#define INM_ADJOK 7	/* AdjOK? */
#define INM_SEQMIS 8	/* Sequence number mismatch */
#define INM_1WAYREC 9	/* 1-Way */
#define INM_KILLNBR 10	/* Kill Neighbor */
#define INM_INACTTIM 11	/* Inactivity timer */
#define INM_LLDOWN 12	/* Line down */

struct ospf_area {
  node n;
  u32 areaid;
  bird_clock_t lage;		/* A time of last aging */
  timer *age_timer;			/* A timer for aging */
  struct top_graph *gr;		/* LSA graph */
  slist lsal;			/* List of all LSA's */
  struct top_hash_entry *rt;	/* My own router LSA */
  list cand;			/* List of candidates for RT calc. */
  u8 stub;
  u8 trcap;			/* Transit capability? */
  struct proto_ospf *po;
};

struct proto_ospf {
  struct proto proto;
  list iface_list;		/* Interfaces we really use */
  list area_list;
  int areano;			/* Number of area I belong to */
};

static int ospf_start(struct proto *p);
static void ospf_dump(struct proto *p);
static struct proto *ospf_init(struct proto_config *c);
static void ospf_preconfig(struct protocol *p, struct config *c);
static void ospf_postconfig(struct proto_config *c);

#include "proto/ospf/hello.h"
#include "proto/ospf/packet.h"
#include "proto/ospf/iface.h"
#include "proto/ospf/neighbor.h"
#include "proto/ospf/topology.h"
#include "proto/ospf/dbdes.h"
#include "proto/ospf/lsreq.h"
#include "proto/ospf/lsupd.h"
#include "proto/ospf/lsack.h"
#include "proto/ospf/lsalib.h"
#include "proto/ospf/rt.h"

#endif /* _BIRD_OSPF_H_ */
Commit	Line	Data
c1f8dc91 OF	1	/*
	2	* BIRD -- OSPF
	3	*
	4	* (c) 1999 Ondrej Filip <feela@network.cz>
	5	*
	6	* Can be freely distributed and used under the terms of the GNU GPL.
	7	*/
	8
	9	#ifndef _BIRD_OSPF_H_
	10	#define _BIRD_OSPF_H_
	11
4364b47e OF	12	#define LOCAL_DEBUG
4364b47e OF	13
6d2b3211 OF	14	#define SIPH 64 /* FIXME Size Of IP header */
6d2b3211 OF	15
4364b47e OF	16	#include "nest/bird.h"
	17
	18	#include "lib/checksum.h"
6ba36f06 MM	19	#include "lib/ip.h"
6ba36f06 MM	20	#include "lib/lists.h"
30147b89	21	#include "lib/slists.h"
6ba36f06 MM	22	#include "lib/socket.h"
	23	#include "lib/timer.h"
	24	#include "lib/resource.h"
	25	#include "nest/protocol.h"
	26	#include "nest/iface.h"
4364b47e OF	27	#include "nest/route.h"
4364b47e OF	28	#include "conf/conf.h"
85195f1a	29	#include <string.h>
6ba36f06	30
5b1a92e6	31	#define OSPF_PROTO 89
aec76c6e	32	#ifndef IPV6
296ecb56	33	#define OSPF_VERSION 2
5b1a92e6 OF	34	#define AllSPFRouters ipa_from_u32(0xe0000005) /* 224.0.0.5 */
5b1a92e6 OF	35	#define AllDRouters ipa_from_u32(0xe0000006) /* 224.0.0.6 */
c6c56264	36	#define DEFAULTDES ipa_from_u32(0)
aec76c6e	37	#else
6376a961	38	#error Multicast address not defined in IPv6
aec76c6e OF	39	#endif
aec76c6e OF	40
15087574	41
921a93f2	42	#define LSREFRESHTIME 1800 /* 30 minutes */
15087574 OF	43	#define MINLSINTERVAL 5
15087574 OF	44	#define MINLSARRIVAL 1
c6c56264	45	#define LSINFINITY 0xffff /* RFC says 0xffffff ??? */
c45f48fb	46	#define AGINGDELTA 20 /* FIXME What's good value? */
15087574	47
c1f8dc91 OF	48	struct ospf_config {
c1f8dc91 OF	49	struct proto_config c;
b11d8a4f	50	u32 area; /* FIXME: Area ID !!! This is wrong !!!
aec76c6e	51	* Should respect interface */
c1f8dc91 OF	52	};
c1f8dc91 OF	53
5b1a92e6	54	struct ospf_iface {
b11d8a4f	55	node n;
f7103dfc	56	struct proto_ospf *proto;
b11d8a4f	57	struct iface iface; / Nest's iface */
30147b89 OF	58	struct ospf_area *oa;
30147b89 OF	59	u32 an; /* Area number */
1af66415	60	sock hello_sk; / Hello socket */
2a092594	61	sock dr_sk; / For states DR or BACKUP */
1af66415	62	sock ip_sk; / IP socket (for DD ...) */
75b84c34	63	list neigh_list; /* List of neigbours */
5b1a92e6	64	u16 cost; /* Cost of iface */
2c1d1cc7 OF	65	u16 rxmtint; /* number of seconds between LSA retransmissions */
2c1d1cc7 OF	66	u16 iftransdelay; /* The estimated number of seconds it takes to
5b1a92e6 OF	67	transmit a Link State Update Packet over this
	68	interface. LSAs contained in the update */
	69	u8 priority; /* A router priority for DR election */
	70	u16 helloint; /* number of seconds between hello sending */
96f1b8ba	71	u16 waitint; /* number of sec before changing state from wait */
35ff423d	72	u32 deadc; /* after "deadint" missing hellos is router dead */
5b1a92e6 OF	73	u16 autype;
	74	u8 aukey[8];
	75	u8 options;
aec76c6e OF	76	ip_addr drip; /* Designated router */
	77	u32 drid;
	78	ip_addr bdrip; /* Backup DR */
	79	u32 bdrid;
2c1d1cc7	80	u8 type; /* OSPF view of type */
96f1b8ba	81	#define OSPF_IT_BCAST 0
4c630a6d OF	82	#define OSPF_IT_NBMA 1
4c630a6d OF	83	#define OSPF_IT_PTP 2
96f1b8ba	84	#define OSPF_IT_VLINK 3
2c1d1cc7	85	u8 state; /* Interface state machine */
96f1b8ba OF	86	#define OSPF_IS_DOWN 0 /* Not working */
	87	#define OSPF_IS_LOOP 1 /* Should never happen */
	88	#define OSPF_IS_WAITING 2 /* Waiting for Wait timer */
	89	#define OSPF_IS_PTP 3 /* PTP operational */
	90	#define OSPF_IS_DROTHER 4 /* I'm on BCAST or NBMA and I'm not DR */
	91	#define OSPF_IS_BACKUP 5 /* I'm BDR */
	92	#define OSPF_IS_DR 6 /* I'm DR */
65112dd2 OF	93	timer wait_timer; / WAIT timer */
65112dd2 OF	94	timer hello_timer; / HELLOINT timer */
5b1a92e6 OF	95	/* Default values for interface parameters */
	96	#define COST_D 10
	97	#define RXMTINT_D 5
	98	#define IFTRANSDELAY_D 1
4c630a6d	99	#define PRIORITY_D 1
5b1a92e6	100	#define HELLOINT_D 10
35ff423d	101	#define DEADC_D 4
96f1b8ba OF	102	#define WAIT_DMH 3 /* Value of Wait timer - not found it in RFC
96f1b8ba OF	103	* - using 3*HELLO
1af66415	104	*/
5b1a92e6 OF	105	};
5b1a92e6 OF	106
296ecb56 OF	107	struct ospf_packet {
	108	u8 version;
	109	u8 type;
	110	#define HELLO 1 /* Hello */
	111	#define DBDES 2 /* Database description */
	112	#define LSREQ 3 /* Link state request */
	113	#define LSUPD 4 /* Link state update */
	114	#define LSACK 5 /* Link state acknowledgement */
	115	u16 length;
	116	u32 routerid;
	117	u32 areaid;
2c971094	118	#define BACKBONE 0
296ecb56 OF	119	u16 checksum;
	120	u16 autype;
	121	u8 authetication[8];
	122	};
	123
	124	struct ospf_hello_packet {
67ff9130 OF	125	struct ospf_packet ospf_packet;
67ff9130 OF	126	ip_addr netmask;
35ff423d	127	u16 helloint;
296ecb56 OF	128	u8 options;
	129	u8 priority;
	130	u32 deadint;
	131	u32 dr;
	132	u32 bdr;
	133	};
	134
04c6319a OF	135	struct immsb {
	136	u8 ms:1;
	137	u8 m:1;
	138	u8 i:1;
	139	u8 padding:5;
	140	};
	141
	142	union imms {
	143	u8 byte;
	144	struct immsb bit;
	145	};
	146
2c1d1cc7	147	struct ospf_dbdes_packet {
1af66415 OF	148	struct ospf_packet ospf_packet;
1af66415 OF	149	u16 iface_mtu;
2c1d1cc7	150	u8 options;
04c6319a	151	union imms imms; /* I, M, MS bits */
2c1d1cc7 OF	152	#define DBDES_MS 1
	153	#define DBDES_M 2
	154	#define DBDES_I 4
	155	u32 ddseq;
1af66415 OF	156	};
1af66415 OF	157
ce17d4c1 OF	158
	159	struct ospf_lsa_header {
	160	u16 age; /* LS Age */
	161	#define LSA_MAXAGE 3600 /* 1 hour */
	162	#define LSA_CHECKAGE 300 /* 5 minutes */
	163	#define LSA_MAXAGEDIFF 900 /* 15 minutes */
2c1d1cc7	164	u8 options;
ce17d4c1 OF	165	u8 type;
	166	u32 id;
	167	#define LSA_T_RT 1
	168	#define LSA_T_NET 2
	169	#define LSA_T_SUM_NET 3
	170	#define LSA_T_SUM_RT 4
	171	#define LSA_T_EXT 5
	172	u32 rt; /* Advertising router */
910e557b	173	s32 sn; /* LS Sequence number */
ce17d4c1 OF	174	#define LSA_INITSEQNO 0x80000001
ce17d4c1 OF	175	#define LSA_MAXSEQNO 0x7fffffff
2c1d1cc7	176	u16 checksum;
ce17d4c1 OF	177	u16 length;
	178	};
	179
	180	struct ospf_lsa_rt {
	181	u8 VEB;
	182	#define LSA_RT_V 5
	183	#define LSA_RT_E 6
	184	#define LSA_RT_B 7
	185	u8 padding;
	186	u16 links;
	187	};
	188
	189	struct ospf_lsa_rt_link {
	190	u32 id;
	191	u32 data;
	192	u8 type;
	193	#define LSART_PTP 1
	194	#define LSART_NET 2
	195	#define LSART_STUB 3
	196	#define LSART_VLNK 4
	197	u8 notos;
	198	u16 metric;
	199	};
	200
	201	struct ospf_lsa_rt_link_tos { /* Actually we ignore TOS. This is useless */
	202	u8 tos;
	203	u8 padding;
	204	u16 metric;
2c1d1cc7 OF	205	};
2c1d1cc7 OF	206
dfa9a53a	207	struct ospf_lsa_net {
c6c56264	208	ip_addr netmask;
dfa9a53a OF	209	};
dfa9a53a OF	210
ce17d4c1	211	struct ospf_lsa_summ {
c6c56264	212	ip_addr netmask;
ce17d4c1 OF	213	};
	214
	215	struct ospf_lsa_summ_net {
	216	u8 tos;
	217	u8 padding;
	218	u16 metric;
	219	};
	220
	221	struct ospf_lsa_ext {
c6c56264	222	ip_addr netmask;
ce17d4c1 OF	223	};
	224
	225	struct ospf_lsa_ext_tos {
	226	u8 etos;
	227	u8 padding;
f45fd316	228	u16 metric;
ce17d4c1 OF	229	u32 fwaddr;
	230	u32 tag;
	231	};
	232
6d2b3211 OF	233	struct ospf_lsreq_packet {
	234	struct ospf_packet ospf_packet;
	235	};
	236
	237	struct ospf_lsreq_header {
	238	u16 padd1;
	239	u8 padd2;
	240	u8 type;
	241	u32 id;
	242	u32 rt; /* Advertising router */
	243	};
	244
f45fd316 OF	245	struct l_lsr_head {
	246	node n;
	247	struct ospf_lsreq_header lsh;
	248	};
	249
de769e24 OF	250	struct ospf_lsupd_packet {
	251	struct ospf_packet ospf_packet;
	252	u32 lsano; /* Number of LSA's */
	253	};
	254
	255	struct ospf_lsack_packet {
	256	struct ospf_packet ospf_packet;
	257	};
	258
	259
c76674f0 OF	260	struct ospf_neighbor
c76674f0 OF	261	{
e83dc0d7	262	node n;
903a3f39	263	struct ospf_iface *ifa;
2c1d1cc7	264	u8 state;
c76674f0	265	#define NEIGHBOR_DOWN 0
cd70d934 OF	266	#define NEIGHBOR_ATTEMPT 1
	267	#define NEIGHBOR_INIT 2
	268	#define NEIGHBOR_2WAY 3
c76674f0	269	#define NEIGHBOR_EXSTART 4
903a3f39 OF	270	#define NEIGHBOR_EXCHANGE 5
	271	#define NEIGHBOR_LOADING 6
	272	#define NEIGHBOR_FULL 7
c76674f0	273	timer inactim; / Inactivity timer */
04c6319a	274	union imms imms; /* I, M, Master/slave received */
c2250f91 OF	275	u32 dds; /* DD Sequence number being sent */
c2250f91 OF	276	u32 ddr; /* last Dat Des packet received */
04c6319a	277	union imms myimms; /* I, M Master/slave */
c76674f0	278	u32 rid; /* Router ID */
986e3413	279	ip_addr ip; /* IP of it's interface */
2c1d1cc7	280	u8 priority; /* Priority */
986e3413	281	u8 options; /* Options received */
c76674f0 OF	282	u32 dr; /* Neigbour's idea of DR */
c76674f0 OF	283	u32 bdr; /* Neigbour's idea of BDR */
e3121112	284	u8 adj; /* built adjacency? */
30147b89	285	siterator dbsi; /* Database summary list iterator */
95eb1dba OF	286	slist lsrql; /* Link state request */
95eb1dba OF	287	struct top_graph lsrqh; / LSA graph */
30147b89 OF	288	siterator lsrqi;
	289	slist lsrtl; /* Link state retransmission list */
	290	siterator lsrti;
921a93f2	291	struct top_graph *lsrth;
30147b89	292	void ldbdes; / Last database description packet */
6d2b3211 OF	293	timer rxmt_timer; / RXMT timer */
6d2b3211 OF	294	timer lsrr_timer; / Link state requiest retransmition timer */
67315ef6 OF	295	list ackl;
67315ef6 OF	296	timer ackd_timer; / Delayed ack timer */
c76674f0 OF	297	};
c76674f0 OF	298
96f1b8ba OF	299	/* Definitions for interface state machine */
	300	#define ISM_UP 0 /* Interface Up */
	301	#define ISM_WAITF 1 /* Wait timer fired */
	302	#define ISM_BACKS 2 /* Backup seen */
	303	#define ISM_NEICH 3 /* Neighbor change */
	304	#define ISM_LOOP 4 /* Loop indicated */
	305	#define ISM_UNLOOP 5 /* Unloop indicated */
	306	#define ISM_DOWN 6 /* Interface down */
	307
	308	/* Definitions for neighbor state machine */
	309	#define INM_HELLOREC 0 /* Hello Received */
	310	#define INM_START 1 /* Neighbor start - for NBMA */
	311	#define INM_2WAYREC 2 /* 2-Way received */
	312	#define INM_NEGDONE 3 /* Negotiation done */
	313	#define INM_EXDONE 4 /* Exchange done */
	314	#define INM_BADLSREQ 5 /* Bad LS Request */
	315	#define INM_LOADDONE 6 /* Load done */
	316	#define INM_ADJOK 7 /* AdjOK? */
	317	#define INM_SEQMIS 8 /* Sequence number mismatch */
	318	#define INM_1WAYREC 9 /* 1-Way */
6ba36f06	319	#define INM_KILLNBR 10 /* Kill Neighbor */
96f1b8ba OF	320	#define INM_INACTTIM 11 /* Inactivity timer */
	321	#define INM_LLDOWN 12 /* Line down */
	322
15087574	323	struct ospf_area {
8496b2e4	324	node n;
15087574	325	u32 areaid;
c45f48fb OF	326	bird_clock_t lage; /* A time of last aging */
c45f48fb OF	327	timer age_timer; / A timer for aging */
15087574	328	struct top_graph gr; / LSA graph */
30147b89	329	slist lsal; /* List of all LSA's */
de30342f	330	struct top_hash_entry rt; / My own router LSA */
dfa9a53a OF	331	list cand; /* List of candidates for RT calc. */
	332	u8 stub;
	333	u8 trcap; /* Transit capability? */
c45f48fb	334	struct proto_ospf *po;
15087574 OF	335	};
15087574 OF	336
4364b47e OF	337	struct proto_ospf {
	338	struct proto proto;
	339	list iface_list; /* Interfaces we really use */
8496b2e4	340	list area_list;
15087574	341	int areano; /* Number of area I belong to */
6ba36f06 MM	342	};
6ba36f06 MM	343
4364b47e OF	344	static int ospf_start(struct proto *p);
	345	static void ospf_dump(struct proto *p);
	346	static struct proto ospf_init(struct proto_config c);
	347	static void ospf_preconfig(struct protocol p, struct config c);
	348	static void ospf_postconfig(struct proto_config *c);
	349
	350	#include "proto/ospf/hello.h"
	351	#include "proto/ospf/packet.h"
	352	#include "proto/ospf/iface.h"
	353	#include "proto/ospf/neighbor.h"
	354	#include "proto/ospf/topology.h"
	355	#include "proto/ospf/dbdes.h"
6d2b3211	356	#include "proto/ospf/lsreq.h"
f45fd316 OF	357	#include "proto/ospf/lsupd.h"
	358	#include "proto/ospf/lsack.h"
	359	#include "proto/ospf/lsalib.h"
dfa9a53a	360	#include "proto/ospf/rt.h"
6ba36f06	361
c1f8dc91	362	#endif /* _BIRD_OSPF_H_ */