[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 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 "lib/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 7		/* 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 inftransdelay;	/* 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 INFTRANSDELAY_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 top_hash_entry *nlsa;	/* Originated net lsa */
  int fadj;		/* Number of full adjacent neigh */
};

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;
  ip_addr 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 request 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 fib infib;		/* FIB for intra-area routes */
};

struct proto_ospf {
  struct proto proto;
  list iface_list;		/* Interfaces we really use */
  list area_list;
  int areano;			/* Number of area I belong to */
  struct fib efib;		/* FIB for external routes */
};

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);
static int ospf_rte_better(struct rte *new, struct rte *old);
static int ospf_rte_same(struct rte *new, struct rte *old);
int ospf_import_control(struct proto *p, rte **new, ea_list **attrs,
  struct linpool *pool);
void ospf_rt_notify(struct proto *p, net *n, rte *new, rte *old,ea_list *attrs);

#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	12
6d2b3211 OF	13	#define SIPH 64 /* FIXME Size Of IP header */
6d2b3211 OF	14
4364b47e OF	15	#include "nest/bird.h"
	16
	17	#include "lib/checksum.h"
6ba36f06 MM	18	#include "lib/ip.h"
6ba36f06 MM	19	#include "lib/lists.h"
30147b89	20	#include "lib/slists.h"
6ba36f06 MM	21	#include "lib/socket.h"
	22	#include "lib/timer.h"
	23	#include "lib/resource.h"
	24	#include "nest/protocol.h"
	25	#include "nest/iface.h"
4364b47e OF	26	#include "nest/route.h"
4364b47e OF	27	#include "conf/conf.h"
d345cda5	28	#include "lib/string.h"
6ba36f06	29
5b1a92e6	30	#define OSPF_PROTO 89
aec76c6e	31	#ifndef IPV6
296ecb56	32	#define OSPF_VERSION 2
5b1a92e6 OF	33	#define AllSPFRouters ipa_from_u32(0xe0000005) /* 224.0.0.5 */
5b1a92e6 OF	34	#define AllDRouters ipa_from_u32(0xe0000006) /* 224.0.0.6 */
c6c56264	35	#define DEFAULTDES ipa_from_u32(0)
aec76c6e	36	#else
6376a961	37	#error Multicast address not defined in IPv6
aec76c6e OF	38	#endif
aec76c6e OF	39
15087574	40
921a93f2	41	#define LSREFRESHTIME 1800 /* 30 minutes */
15087574 OF	42	#define MINLSINTERVAL 5
15087574 OF	43	#define MINLSARRIVAL 1
c6c56264	44	#define LSINFINITY 0xffff /* RFC says 0xffffff ??? */
e1e31816	45	#define AGINGDELTA 7 /* FIXME What's good value? */
15087574	46
c1f8dc91 OF	47	struct ospf_config {
c1f8dc91 OF	48	struct proto_config c;
b11d8a4f	49	u32 area; /* FIXME: Area ID !!! This is wrong !!!
aec76c6e	50	* Should respect interface */
c1f8dc91 OF	51	};
c1f8dc91 OF	52
5b1a92e6	53	struct ospf_iface {
b11d8a4f	54	node n;
f7103dfc	55	struct proto_ospf *proto;
b11d8a4f	56	struct iface iface; / Nest's iface */
30147b89 OF	57	struct ospf_area *oa;
30147b89 OF	58	u32 an; /* Area number */
1af66415	59	sock hello_sk; / Hello socket */
2a092594	60	sock dr_sk; / For states DR or BACKUP */
1af66415	61	sock ip_sk; / IP socket (for DD ...) */
75b84c34	62	list neigh_list; /* List of neigbours */
5b1a92e6	63	u16 cost; /* Cost of iface */
2c1d1cc7	64	u16 rxmtint; /* number of seconds between LSA retransmissions */
249fdef7	65	u16 inftransdelay; /* The estimated number of seconds it takes to
5b1a92e6 OF	66	transmit a Link State Update Packet over this
	67	interface. LSAs contained in the update */
	68	u8 priority; /* A router priority for DR election */
	69	u16 helloint; /* number of seconds between hello sending */
96f1b8ba	70	u16 waitint; /* number of sec before changing state from wait */
35ff423d	71	u32 deadc; /* after "deadint" missing hellos is router dead */
5b1a92e6 OF	72	u16 autype;
	73	u8 aukey[8];
	74	u8 options;
aec76c6e OF	75	ip_addr drip; /* Designated router */
	76	u32 drid;
	77	ip_addr bdrip; /* Backup DR */
	78	u32 bdrid;
2c1d1cc7	79	u8 type; /* OSPF view of type */
96f1b8ba	80	#define OSPF_IT_BCAST 0
4c630a6d OF	81	#define OSPF_IT_NBMA 1
4c630a6d OF	82	#define OSPF_IT_PTP 2
96f1b8ba	83	#define OSPF_IT_VLINK 3
2c1d1cc7	84	u8 state; /* Interface state machine */
96f1b8ba OF	85	#define OSPF_IS_DOWN 0 /* Not working */
	86	#define OSPF_IS_LOOP 1 /* Should never happen */
	87	#define OSPF_IS_WAITING 2 /* Waiting for Wait timer */
	88	#define OSPF_IS_PTP 3 /* PTP operational */
	89	#define OSPF_IS_DROTHER 4 /* I'm on BCAST or NBMA and I'm not DR */
	90	#define OSPF_IS_BACKUP 5 /* I'm BDR */
	91	#define OSPF_IS_DR 6 /* I'm DR */
65112dd2 OF	92	timer wait_timer; / WAIT timer */
65112dd2 OF	93	timer hello_timer; / HELLOINT timer */
5b1a92e6 OF	94	/* Default values for interface parameters */
	95	#define COST_D 10
	96	#define RXMTINT_D 5
249fdef7	97	#define INFTRANSDELAY_D 1
4c630a6d	98	#define PRIORITY_D 1
5b1a92e6	99	#define HELLOINT_D 10
35ff423d	100	#define DEADC_D 4
96f1b8ba OF	101	#define WAIT_DMH 3 /* Value of Wait timer - not found it in RFC
96f1b8ba OF	102	* - using 3*HELLO
1af66415	103	*/
9bc1808a OF	104	struct top_hash_entry nlsa; / Originated net lsa */
9bc1808a OF	105	int fadj; /* Number of full adjacent neigh */
5b1a92e6 OF	106	};
5b1a92e6 OF	107
296ecb56 OF	108	struct ospf_packet {
	109	u8 version;
	110	u8 type;
	111	#define HELLO 1 /* Hello */
	112	#define DBDES 2 /* Database description */
	113	#define LSREQ 3 /* Link state request */
	114	#define LSUPD 4 /* Link state update */
	115	#define LSACK 5 /* Link state acknowledgement */
	116	u16 length;
	117	u32 routerid;
	118	u32 areaid;
2c971094	119	#define BACKBONE 0
296ecb56 OF	120	u16 checksum;
	121	u16 autype;
	122	u8 authetication[8];
	123	};
	124
	125	struct ospf_hello_packet {
67ff9130 OF	126	struct ospf_packet ospf_packet;
67ff9130 OF	127	ip_addr netmask;
35ff423d	128	u16 helloint;
296ecb56 OF	129	u8 options;
	130	u8 priority;
	131	u32 deadint;
	132	u32 dr;
	133	u32 bdr;
	134	};
	135
04c6319a OF	136	struct immsb {
	137	u8 ms:1;
	138	u8 m:1;
	139	u8 i:1;
	140	u8 padding:5;
	141	};
	142
	143	union imms {
	144	u8 byte;
	145	struct immsb bit;
	146	};
	147
2c1d1cc7	148	struct ospf_dbdes_packet {
1af66415 OF	149	struct ospf_packet ospf_packet;
1af66415 OF	150	u16 iface_mtu;
2c1d1cc7	151	u8 options;
04c6319a	152	union imms imms; /* I, M, MS bits */
2c1d1cc7 OF	153	#define DBDES_MS 1
	154	#define DBDES_M 2
	155	#define DBDES_I 4
	156	u32 ddseq;
1af66415 OF	157	};
1af66415 OF	158
ce17d4c1 OF	159
	160	struct ospf_lsa_header {
	161	u16 age; /* LS Age */
	162	#define LSA_MAXAGE 3600 /* 1 hour */
	163	#define LSA_CHECKAGE 300 /* 5 minutes */
	164	#define LSA_MAXAGEDIFF 900 /* 15 minutes */
2c1d1cc7	165	u8 options;
ce17d4c1 OF	166	u8 type;
	167	u32 id;
	168	#define LSA_T_RT 1
	169	#define LSA_T_NET 2
	170	#define LSA_T_SUM_NET 3
	171	#define LSA_T_SUM_RT 4
	172	#define LSA_T_EXT 5
	173	u32 rt; /* Advertising router */
910e557b	174	s32 sn; /* LS Sequence number */
ce17d4c1 OF	175	#define LSA_INITSEQNO 0x80000001
ce17d4c1 OF	176	#define LSA_MAXSEQNO 0x7fffffff
2c1d1cc7	177	u16 checksum;
ce17d4c1 OF	178	u16 length;
	179	};
	180
	181	struct ospf_lsa_rt {
	182	u8 VEB;
	183	#define LSA_RT_V 5
	184	#define LSA_RT_E 6
	185	#define LSA_RT_B 7
	186	u8 padding;
	187	u16 links;
	188	};
	189
	190	struct ospf_lsa_rt_link {
	191	u32 id;
	192	u32 data;
	193	u8 type;
	194	#define LSART_PTP 1
	195	#define LSART_NET 2
	196	#define LSART_STUB 3
	197	#define LSART_VLNK 4
	198	u8 notos;
	199	u16 metric;
	200	};
	201
	202	struct ospf_lsa_rt_link_tos { /* Actually we ignore TOS. This is useless */
	203	u8 tos;
	204	u8 padding;
	205	u16 metric;
2c1d1cc7 OF	206	};
2c1d1cc7 OF	207
dfa9a53a	208	struct ospf_lsa_net {
c6c56264	209	ip_addr netmask;
dfa9a53a OF	210	};
dfa9a53a OF	211
ce17d4c1	212	struct ospf_lsa_summ {
c6c56264	213	ip_addr netmask;
ce17d4c1 OF	214	};
	215
	216	struct ospf_lsa_summ_net {
	217	u8 tos;
	218	u8 padding;
	219	u16 metric;
	220	};
	221
	222	struct ospf_lsa_ext {
c6c56264	223	ip_addr netmask;
ce17d4c1 OF	224	};
	225
	226	struct ospf_lsa_ext_tos {
	227	u8 etos;
	228	u8 padding;
f45fd316	229	u16 metric;
65a9c571	230	ip_addr fwaddr;
ce17d4c1 OF	231	u32 tag;
	232	};
	233
6d2b3211 OF	234	struct ospf_lsreq_packet {
	235	struct ospf_packet ospf_packet;
	236	};
	237
	238	struct ospf_lsreq_header {
	239	u16 padd1;
	240	u8 padd2;
	241	u8 type;
	242	u32 id;
	243	u32 rt; /* Advertising router */
	244	};
	245
f45fd316 OF	246	struct l_lsr_head {
	247	node n;
	248	struct ospf_lsreq_header lsh;
	249	};
	250
de769e24 OF	251	struct ospf_lsupd_packet {
	252	struct ospf_packet ospf_packet;
	253	u32 lsano; /* Number of LSA's */
	254	};
	255
	256	struct ospf_lsack_packet {
	257	struct ospf_packet ospf_packet;
	258	};
	259
	260
c76674f0 OF	261	struct ospf_neighbor
c76674f0 OF	262	{
e83dc0d7	263	node n;
903a3f39	264	struct ospf_iface *ifa;
2c1d1cc7	265	u8 state;
c76674f0	266	#define NEIGHBOR_DOWN 0
cd70d934 OF	267	#define NEIGHBOR_ATTEMPT 1
	268	#define NEIGHBOR_INIT 2
	269	#define NEIGHBOR_2WAY 3
c76674f0	270	#define NEIGHBOR_EXSTART 4
903a3f39 OF	271	#define NEIGHBOR_EXCHANGE 5
	272	#define NEIGHBOR_LOADING 6
	273	#define NEIGHBOR_FULL 7
c76674f0	274	timer inactim; / Inactivity timer */
04c6319a	275	union imms imms; /* I, M, Master/slave received */
c2250f91 OF	276	u32 dds; /* DD Sequence number being sent */
c2250f91 OF	277	u32 ddr; /* last Dat Des packet received */
04c6319a	278	union imms myimms; /* I, M Master/slave */
c76674f0	279	u32 rid; /* Router ID */
986e3413	280	ip_addr ip; /* IP of it's interface */
2c1d1cc7	281	u8 priority; /* Priority */
986e3413	282	u8 options; /* Options received */
c76674f0 OF	283	u32 dr; /* Neigbour's idea of DR */
c76674f0 OF	284	u32 bdr; /* Neigbour's idea of BDR */
e3121112	285	u8 adj; /* built adjacency? */
30147b89	286	siterator dbsi; /* Database summary list iterator */
95eb1dba OF	287	slist lsrql; /* Link state request */
95eb1dba OF	288	struct top_graph lsrqh; / LSA graph */
30147b89 OF	289	siterator lsrqi;
	290	slist lsrtl; /* Link state retransmission list */
	291	siterator lsrti;
921a93f2	292	struct top_graph *lsrth;
30147b89	293	void ldbdes; / Last database description packet */
6d2b3211	294	timer rxmt_timer; / RXMT timer */
43e75f38	295	timer lsrr_timer; / Link state request retransmition timer */
67315ef6 OF	296	list ackl;
67315ef6 OF	297	timer ackd_timer; / Delayed ack timer */
c76674f0 OF	298	};
c76674f0 OF	299
96f1b8ba OF	300	/* Definitions for interface state machine */
	301	#define ISM_UP 0 /* Interface Up */
	302	#define ISM_WAITF 1 /* Wait timer fired */
	303	#define ISM_BACKS 2 /* Backup seen */
	304	#define ISM_NEICH 3 /* Neighbor change */
	305	#define ISM_LOOP 4 /* Loop indicated */
	306	#define ISM_UNLOOP 5 /* Unloop indicated */
	307	#define ISM_DOWN 6 /* Interface down */
	308
	309	/* Definitions for neighbor state machine */
	310	#define INM_HELLOREC 0 /* Hello Received */
	311	#define INM_START 1 /* Neighbor start - for NBMA */
	312	#define INM_2WAYREC 2 /* 2-Way received */
	313	#define INM_NEGDONE 3 /* Negotiation done */
	314	#define INM_EXDONE 4 /* Exchange done */
	315	#define INM_BADLSREQ 5 /* Bad LS Request */
	316	#define INM_LOADDONE 6 /* Load done */
	317	#define INM_ADJOK 7 /* AdjOK? */
	318	#define INM_SEQMIS 8 /* Sequence number mismatch */
	319	#define INM_1WAYREC 9 /* 1-Way */
6ba36f06	320	#define INM_KILLNBR 10 /* Kill Neighbor */
96f1b8ba OF	321	#define INM_INACTTIM 11 /* Inactivity timer */
	322	#define INM_LLDOWN 12 /* Line down */
	323
15087574	324	struct ospf_area {
8496b2e4	325	node n;
15087574	326	u32 areaid;
c45f48fb OF	327	bird_clock_t lage; /* A time of last aging */
c45f48fb OF	328	timer age_timer; / A timer for aging */
15087574	329	struct top_graph gr; / LSA graph */
30147b89	330	slist lsal; /* List of all LSA's */
de30342f	331	struct top_hash_entry rt; / My own router LSA */
dfa9a53a OF	332	list cand; /* List of candidates for RT calc. */
	333	u8 stub;
	334	u8 trcap; /* Transit capability? */
c45f48fb	335	struct proto_ospf *po;
d345cda5	336	struct fib infib; /* FIB for intra-area routes */
15087574 OF	337	};
15087574 OF	338
4364b47e OF	339	struct proto_ospf {
	340	struct proto proto;
	341	list iface_list; /* Interfaces we really use */
8496b2e4	342	list area_list;
15087574	343	int areano; /* Number of area I belong to */
aa1e082c	344	struct fib efib; /* FIB for external routes */
6ba36f06 MM	345	};
6ba36f06 MM	346
4364b47e OF	347	static int ospf_start(struct proto *p);
	348	static void ospf_dump(struct proto *p);
	349	static struct proto ospf_init(struct proto_config c);
	350	static void ospf_preconfig(struct protocol p, struct config c);
	351	static void ospf_postconfig(struct proto_config *c);
bbd76b42	352	static int ospf_rte_better(struct rte new, struct rte old);
00c1f79a	353	static int ospf_rte_same(struct rte new, struct rte old);
e8085aba OF	354	int ospf_import_control(struct proto p, rte new, ea_list *attrs,
	355	struct linpool *pool);
	356	void ospf_rt_notify(struct proto p, net n, rte new, rte old,ea_list *attrs);
4364b47e OF	357
	358	#include "proto/ospf/hello.h"
	359	#include "proto/ospf/packet.h"
	360	#include "proto/ospf/iface.h"
	361	#include "proto/ospf/neighbor.h"
	362	#include "proto/ospf/topology.h"
	363	#include "proto/ospf/dbdes.h"
6d2b3211	364	#include "proto/ospf/lsreq.h"
f45fd316 OF	365	#include "proto/ospf/lsupd.h"
	366	#include "proto/ospf/lsack.h"
	367	#include "proto/ospf/lsalib.h"
dfa9a53a	368	#include "proto/ospf/rt.h"
6ba36f06	369
c1f8dc91	370	#endif /* _BIRD_OSPF_H_ */