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bird/proto/ospf/ospf.h
Ondrej Zajicek d7c2018e47 Temporary OSPF commit.
2014-04-29 12:18:10 +02:00

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/*
* BIRD -- OSPF
*
* (c) 1999--2005 Ondrej Filip <feela@network.cz>
* (c) 2009--2014 Ondrej Zajicek <santiago@crfreenet.org>
* (c) 2009--2014 CZ.NIC z.s.p.o.
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_OSPF_H_
#define _BIRD_OSPF_H_
#define OSPF_MIN_PKT_SIZE 256
#define OSPF_MAX_PKT_SIZE 65535
#ifdef LOCAL_DEBUG
#define OSPF_FORCE_DEBUG 1
#else
#define OSPF_FORCE_DEBUG 0
#endif
#define OSPF_TRACE(flags, msg, args...) \
do { if ((po->proto.debug & flags) || OSPF_FORCE_DEBUG) \
log(L_TRACE "%s: " msg, po->proto.name , ## args ); } while(0)
#define OSPF_PACKET(dumpfn, buffer, msg, args...) \
do { if ((po->proto.debug & D_PACKETS) || OSPF_FORCE_DEBUG) \
{ log(L_TRACE "%s: " msg, po->proto.name, ## args ); dumpfn(po, buffer); } } while(0)
#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 "nest/cli.h"
#include "nest/locks.h"
#include "nest/bfd.h"
#include "conf/conf.h"
#include "lib/string.h"
#define OSPF_PROTO 89
#define LSREFRESHTIME 1800 /* 30 minutes */
#define MINLSINTERVAL 5
#define MINLSARRIVAL 1
#define LSINFINITY 0xffffff
#define OSPF_DEFAULT_TICK 1
#define OSPF_DEFAULT_STUB_COST 1000
#define OSPF_DEFAULT_ECMP_LIMIT 16
#define OSPF_DEFAULT_TRANSINT 40
#define OSPF_VLINK_ID_OFFSET 0x80000000
struct ospf_config
{
struct proto_config c;
unsigned tick;
byte ospf2;
byte rfc1583;
byte stub_router;
byte merge_external;
byte abr;
int ecmp;
list area_list; /* list of struct ospf_area_config */
list vlink_list; /* list of struct ospf_iface_patt */
};
struct nbma_node
{
node n;
ip_addr ip;
byte eligible;
byte found;
};
struct area_net_config
{
node n;
struct prefix px;
int hidden;
u32 tag;
};
struct area_net
{
struct fib_node fn;
int hidden;
int active;
u32 metric;
u32 tag;
};
struct ospf_stubnet_config
{
node n;
struct prefix px;
int hidden, summary;
u32 cost;
};
struct ospf_area_config
{
node n;
u32 areaid;
u32 default_cost; /* Cost of default route for stub areas */
u8 type; /* Area type (standard, stub, NSSA), represented
by option flags (OPT_E, OPT_N) */
u8 summary; /* Import summaries to this stub/NSSA area, valid for ABR */
u8 default_nssa; /* Generate default NSSA route for NSSA+summary area */
u8 translator; /* Translator role, for NSSA ABR */
u32 transint; /* Translator stability interval */
list patt_list;
list net_list; /* List of aggregate networks for that area */
list enet_list; /* List of aggregate external (NSSA) networks */
list stubnet_list; /* List of stub networks added to Router LSA */
};
/* Generic option flags */
#define OPT_V6 0x01 /* OSPFv3, LSA relevant for IPv6 routing calculation */
#define OPT_E 0x02 /* Related to AS-external LSAs */
#define OPT_MC 0x04 /* Related to MOSPF, not used and obsolete */
#define OPT_N 0x08 /* Related to NSSA */
#define OPT_P 0x08 /* OSPFv2, flags P and N share position, see NSSA RFC */
#define OPT_EA 0x10 /* OSPFv2, external attributes, not used and obsolete */
#define OPT_R 0x10 /* OSPFv3, originator is active router */
#define OPT_DC 0x20 /* Related to demand circuits, not used */
/* Router-LSA VEB flags are are stored together with links (OSPFv2) or options (OSPFv3) */
#define OPT_RT_B (0x01 << 24)
#define OPT_RT_E (0x02 << 24)
#define OPT_RT_V (0x04 << 24)
#define OPT_RT_NT (0x10 << 24)
/* Prefix flags, specific for OSPFv3 */
#define OPT_PX_NU 0x01
#define OPT_PX_LA 0x02
#define OPT_PX_P 0x08
#define OPT_PX_DN 0x10
/* OSPF interface types */
#define OSPF_IT_BCAST 0
#define OSPF_IT_NBMA 1
#define OSPF_IT_PTP 2
#define OSPF_IT_PTMP 3
#define OSPF_IT_VLINK 4
#define OSPF_IT_UNDEF 5
/* OSPF interface states */
#define OSPF_IS_DOWN 0 /* Not active */
#define OSPF_IS_LOOP 1 /* Iface with no link */
#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 */
struct ospf_iface
{
node n;
struct iface *iface; /* Nest's iface (NULL for vlinks) */
struct ifa *addr; /* IP prefix associated with that OSPF iface */
struct ospf_area *oa;
struct ospf_iface_patt *cf;
char *ifname; /* Interface name (iface->name), new one for vlinks */
pool *pool;
sock *sk; /* IP socket */
list neigh_list; /* List of neigbours */
u32 cost; /* Cost of iface */
u32 waitint; /* number of sec before changing state from wait */
u32 rxmtint; /* number of seconds between LSA retransmissions */
u32 pollint; /* Poll interval */
u32 deadint; /* after "deadint" missing hellos is router dead */
u32 iface_id; /* Interface ID (iface->index or new value for vlinks) */
u32 vid; /* ID of peer of virtual link */
ip_addr vip; /* IP of peer of virtual link */
struct ospf_iface *vifa; /* OSPF iface which the vlink goes through */
struct ospf_area *voa; /* OSPF area which the vlink goes through */
u16 inftransdelay; /* The estimated number of seconds it takes to
transmit a Link State Update Packet over this
interface. LSAs contained in the update */
u16 helloint; /* number of seconds between hello sending */
list *passwords;
u16 autype;
u32 csn; /* Last used crypt seq number */
bird_clock_t csn_use; /* Last time when packet with that CSN was sent */
ip_addr all_routers; /* XXXX */
ip_addr des_routers; /* XXXX */
ip_addr drip; /* Designated router IP */
ip_addr bdrip; /* Backup DR IP */
u32 drid; /* DR Router ID */
u32 bdrid; /* BDR Router ID */
s16 rt_pos_beg; /* Position of iface in Router-LSA, begin, inclusive */
s16 rt_pos_end; /* Position of iface in Router-LSA, end, exclusive */
s16 px_pos_beg; /* Position of iface in Rt Prefix-LSA, begin, inclusive */
s16 px_pos_end; /* Position of iface in Rt Prefix-LSA, end, exclusive */
u32 dr_iface_id; /* if drid is valid, this is iface_id of DR (for connecting network) */
u8 instance_id; /* Used to differentiate between more OSPF
instances on one interface */
u8 type; /* OSPF view of type (OSPF_IT_*) */
u8 strictnbma; /* Can I talk with unknown neighbors? */
u8 stub; /* Inactive interface */
u8 state; /* Interface state machine (OSPF_IS_*) */
timer *wait_timer; /* WAIT timer */
timer *hello_timer; /* HELLOINT timer */
timer *poll_timer; /* Poll Interval - for NBMA */
/* 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 POLLINT_D 20
#define DEADC_D 4
#define WAIT_DMH 4
/* Value of Wait timer - not found it in RFC * - using 4*HELLO */
struct top_hash_entry *net_lsa; /* Originated network LSA */
int orignet; /* Schedule network LSA origination */
int origlink; /* Schedule link LSA origination */
struct top_hash_entry *link_lsa; /* Originated link LSA */
struct top_hash_entry *pxn_lsa; /* Originated prefix LSA */
int fadj; /* Number of full adjacent neigh */
list nbma_list;
u8 priority; /* A router priority for DR election */
u8 ioprob;
#define OSPF_I_OK 0 /* Everything OK */
#define OSPF_I_SK 1 /* Socket open failed */
#define OSPF_I_LL 2 /* Missing link-local address (OSPFv3) */
u8 sk_dr; /* Socket is a member of designated routers group */
u8 marked; /* Used in OSPF reconfigure */
u16 rxbuf; /* Buffer size */
u16 tx_length; /* Soft TX packet length limit, usually MTU */
u8 check_link; /* Whether iface link change is used */
u8 ecmp_weight; /* Weight used for ECMP */
u8 ptp_netmask; /* Send real netmask for P2P */
u8 check_ttl; /* Check incoming packets for TTL 255 */
u8 bfd; /* Use BFD on iface */
};
struct ospf_md5
{
u16 zero;
u8 keyid;
u8 len;
u32 csn;
};
union ospf_auth
{
u8 password[8];
struct ospf_md5 md5;
};
/* Packet types */
#define HELLO_P 1 /* Hello */
#define DBDES_P 2 /* Database description */
#define LSREQ_P 3 /* Link state request */
#define LSUPD_P 4 /* Link state update */
#define LSACK_P 5 /* Link state acknowledgement */
/* Area IDs */
#define BACKBONE 0
#define DBDES_I 4 /* Init bit */
#define DBDES_M 2 /* More bit */
#define DBDES_MS 1 /* Master/Slave bit */
#define DBDES_IMMS (DBDES_I | DBDES_M | DBDES_MS)
/*
* There is slight difference in OSPF packet header between v2 and v3
* in vdep field. For OSPFv2, vdep is u16 authentication type and
* ospf_header is followed by union ospf_auth. For OSPFv3, higher byte
* of vdep is instance ID and lower byte is zero.
*/
struct ospf_packet
{
u8 version;
u8 type;
u16 length;
u32 routerid;
u32 areaid;
u16 checksum;
u16 vdep;
};
static inline u16 ospf_pkt_get_autype(struct ospf_packet *pkt)
{ return ntohs(pkt->vdep); }
static inline void ospf_pkt_set_autype(struct ospf_packet *pkt, u16 val)
{ pkt->vdep = htons(val); }
static inline u8 ospf_pkt_get_instance_id(struct ospf_packet *pkt)
{ return ntohs(pkt->vdep) >> 8; }
static inline void ospf_pkt_set_instance_id(struct ospf_packet *pkt, u16 val)
{ pkt->vdep = htons(val << 8); }
#define LSA_T_RT 0x2001
#define LSA_T_NET 0x2002
#define LSA_T_SUM_NET 0x2003
#define LSA_T_SUM_RT 0x2004
#define LSA_T_EXT 0x4005
#define LSA_T_NSSA 0x2007
#define LSA_T_LINK 0x0008
#define LSA_T_PREFIX 0x2009
#define LSA_T_V2_MASK 0x00ff
#define LSA_UBIT 0x8000
#define LSA_SCOPE_LINK 0x0000
#define LSA_SCOPE_AREA 0x2000
#define LSA_SCOPE_AS 0x4000
#define LSA_SCOPE_RES 0x6000
#define LSA_SCOPE_MASK 0x6000
#define LSA_SCOPE(type) ((type) & LSA_SCOPE_MASK)
#define LSA_MAXAGE 3600 /* 1 hour */
#define LSA_CHECKAGE 300 /* 5 minutes */
#define LSA_MAXAGEDIFF 900 /* 15 minutes */
#define LSA_INITSEQNO ((s32) 0x80000001)
#define LSA_MAXSEQNO ((s32) 0x7fffffff)
#define LSART_PTP 1
#define LSART_NET 2
#define LSART_STUB 3
#define LSART_VLNK 4
#define LSA_RT2_LINKS 0x0000FFFF
#define LSA_SUM2_TOS 0xFF000000
#define LSA_EXT2_TOS 0x7F000000
#define LSA_EXT2_EBIT 0x80000000
#define LSA_EXT3_EBIT 0x4000000
#define LSA_EXT3_FBIT 0x2000000
#define LSA_EXT3_TBIT 0x1000000
// XXXX remove
#define LSA_EXT_EBIT 0x4000000
struct ospf_lsa_header
{
u16 age; /* LS Age */
u16 type_raw; /* Type, mixed with options on OSPFv2 */
u32 id;
u32 rt; /* Advertising router */
s32 sn; /* LS Sequence number */
u16 checksum;
u16 length;
};
/* In OSPFv2, options are embedded in higher half of type_raw */
static inline u8 lsa_get_options(struct ospf_lsa_header *lsa)
{ return lsa->type_raw >> 8; }
static inline void lsa_set_options(struct ospf_lsa_header *lsa, u16 options)
{ lsa->type_raw = (lsa->type_raw & 0xff) | (options << 8); }
struct ospf_lsa_rt
{
u32 options; /* VEB flags, mixed with link count for OSPFv2 and options for OSPFv3 */
};
struct ospf_lsa_rt2_link
{
u32 id;
u32 data;
#ifdef CPU_BIG_ENDIAN
u8 type;
u8 no_tos;
u16 metric;
#else
u16 metric;
u8 no_tos;
u8 type;
#endif
};
struct ospf_lsa_rt2_tos
{
#ifdef CPU_BIG_ENDIAN
u8 tos;
u8 padding;
u16 metric;
#else
u16 metric;
u8 padding;
u8 tos;
#endif
};
struct ospf_lsa_rt3_link
{
#ifdef CPU_BIG_ENDIAN
u8 type;
u8 padding;
u16 metric;
#else
u16 metric;
u8 padding;
u8 type;
#endif
u32 lif; /* Local interface ID */
u32 nif; /* Neighbor interface ID */
u32 id; /* Neighbor router ID */
};
struct ospf_lsa_net
{
u32 optx; /* Netmask for OSPFv2, options for OSPFv3 */
u32 routers[];
};
struct ospf_lsa_sum2
{
ip4_addr netmask;
u32 metric;
};
struct ospf_lsa_sum3_net
{
u32 metric;
u32 prefix[];
};
struct ospf_lsa_sum3_rt
{
u32 options;
u32 metric;
u32 drid;
};
struct ospf_lsa_ext2
{
ip4_addr netmask;
u32 metric;
ip4_addr fwaddr;
u32 tag;
};
struct ospf_lsa_ext3
{
u32 metric;
u32 rest[];
};
struct ospf_lsa_ext_local
{
ip_addr ip, fwaddr;
int pxlen;
u32 metric, ebit, fbit, tag, propagate;
u8 pxopts;
};
struct ospf_lsa_link
{
u32 options;
ip6_addr lladdr;
u32 pxcount;
u32 rest[];
};
struct ospf_lsa_prefix
{
#ifdef CPU_BIG_ENDIAN
u16 pxcount;
u16 ref_type;
#else
u16 ref_type;
u16 pxcount;
#endif
u32 ref_id;
u32 ref_rt;
u32 rest[];
};
#define METRIC_MASK 0x00FFFFFF
#define OPTIONS_MASK 0x00FFFFFF
static inline unsigned
lsa_net_count(struct ospf_lsa_header *lsa)
{
return (lsa->length - sizeof(struct ospf_lsa_header) - sizeof(struct ospf_lsa_net))
/ sizeof(u32);
}
/* In ospf_area->rtr we store paths to routers, but we use RID (and not IP address)
as index, so we need to encapsulate RID to IP address */
#define ipa_from_rid(x) ipa_from_u32(x)
#define ipa_to_rid(x) ipa_to_u32(x)
#define IPV6_PREFIX_SPACE(x) ((((x) + 63) / 32) * 4)
#define IPV6_PREFIX_WORDS(x) (((x) + 63) / 32)
static inline u32 *
lsa_get_ipv6_prefix(u32 *buf, ip_addr *addr, int *pxlen, u8 *pxopts, u16 *rest)
{
u8 pxl = (*buf >> 24);
*pxopts = (*buf >> 16);
*rest = *buf;
*pxlen = pxl;
buf++;
*addr = IPA_NONE;
if (pxl > 0)
_I0(*addr) = *buf++;
if (pxl > 32)
_I1(*addr) = *buf++;
if (pxl > 64)
_I2(*addr) = *buf++;
if (pxl > 96)
_I3(*addr) = *buf++;
/* Clean up remaining bits */
if (pxl < 128)
addr->addr[pxl / 32] &= u32_mkmask(pxl % 32);
return buf;
}
static inline u32 *
lsa_get_ipv6_addr(u32 *buf, ip_addr *addr)
{
*addr = *(ip_addr *) buf;
return buf + 4;
}
static inline u32 *
put_ipv6_prefix(u32 *buf, ip_addr addr, u8 pxlen, u8 pxopts, u16 lh)
{
*buf++ = ((pxlen << 24) | (pxopts << 16) | lh);
if (pxlen > 0)
*buf++ = _I0(addr);
if (pxlen > 32)
*buf++ = _I1(addr);
if (pxlen > 64)
*buf++ = _I2(addr);
if (pxlen > 96)
*buf++ = _I3(addr);
return buf;
}
static inline u32 *
put_ipv6_addr(u32 *buf, ip_addr addr)
{
*(ip_addr *) buf = addr;
return buf + 4;
}
struct ospf_lsreq_header
{
u32 type;
u32 id;
u32 rt;
};
struct ospf_neighbor
{
node n;
pool *pool;
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 */
u8 imms; /* I, M, Master/slave received */
u8 myimms; /* I, M Master/slave */
u32 dds; /* DD Sequence number being sent */
u32 ddr; /* last Dat Des packet received */
u32 rid; /* Router ID */
ip_addr ip; /* IP of it's interface */
u8 priority; /* Priority */
u8 adj; /* built adjacency? */
u32 options; /* Options received */
/* Entries dr and bdr store IP addresses in OSPFv2 and router IDs in
OSPFv3, we use the same type to simplify handling */
u32 dr; /* Neigbour's idea of DR */
u32 bdr; /* Neigbour's idea of BDR */
u32 iface_id; /* ID of Neighbour's iface connected to common network */
/* Database summary list iterator, controls initial dbdes exchange.
* Advances in the LSA list as dbdes packets are sent.
*/
siterator dbsi; /* iterator of po->lsal */
/* Link state request list, controls initial LSA exchange.
* Entries added when received in dbdes packets, removed as sent in lsreq packets.
*/
slist lsrql; /* slist of struct top_hash_entry from n->lsrqh */
struct top_graph *lsrqh;
/* Link state retransmission list, controls LSA retransmission during flood.
* Entries added as sent in lsupd packets, removed when received in lsack packets.
*/
slist lsrtl; /* slist of struct top_hash_entry from n->lsrth */
struct top_graph *lsrth;
timer *rxmt_timer; /* RXMT timer */
list ackl[2];
#define ACKL_DIRECT 0
#define ACKL_DELAY 1
timer *ackd_timer; /* Delayed ack timer */
struct bfd_request *bfd_req; /* BFD request, if BFD is used */
void *ldd_buffer; /* Last database description packet */
u32 ldd_bsize; /* Buffer size for ldd_buffer */
u32 csn; /* Last received crypt seq number (for MD5) */
};
/* 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 /* Link down */
#define ISM_UNLOOP 5 /* Link up */
#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;
struct ospf_area_config *ac; /* Related area config */
struct top_hash_entry *rt; /* My own router LSA */
struct top_hash_entry *pxr_lsa; /* Originated prefix LSA */
list cand; /* List of candidates for RT calc. */
struct fib net_fib; /* Networks to advertise or not */
struct fib enet_fib; /* External networks for NSSAs */
u32 options; /* Optional features */
byte origrt; /* Rt lsa origination scheduled? */
byte trcap; /* Transit capability? */
byte marked; /* Used in OSPF reconfigure */
byte translate; /* Translator state (TRANS_*), for NSSA ABR */
timer *translator_timer; /* For NSSA translator switch */
struct proto_ospf *po;
struct fib rtr; /* Routing tables for routers */
};
#define TRANS_OFF 0
#define TRANS_ON 1
#define TRANS_WAIT 2 /* Waiting before the end of translation */
struct proto_ospf
{
struct proto proto;
timer *disp_timer; /* OSPF proto dispatcher */
unsigned tick;
struct top_graph *gr; /* LSA graph */
slist lsal; /* List of all LSA's */
int calcrt; /* Routing table calculation scheduled?
0=no, 1=normal, 2=forced reload */
list iface_list; /* Interfaces we really use */
list area_list;
int areano; /* Number of area I belong to */
struct fib rtf; /* Routing table */
byte ospf2; /* OSPF v2 or v3 */
byte rfc1583; /* RFC1583 compatibility */
byte stub_router; /* Do not forward transit traffic */
byte merge_external; /* Should i merge external routes? */
byte ebit; /* Did I originate any ext lsa? */
byte ecmp; /* Maximal number of nexthops in ECMP route, or 0 */
struct ospf_area *backbone; /* If exists */
void *lsab; /* LSA buffer used when originating router LSAs */
int lsab_size, lsab_used;
linpool *nhpool; /* Linpool used for next hops computed in SPF */
sock *vlink_sk; /* IP socket used for vlink TX */
u32 router_id;
u32 last_vlink_id; /* Interface IDs for vlinks (starts at 0x80000000) */
};
struct ospf_iface_patt
{
struct iface_patt i;
u32 type;
u32 stub;
u32 cost;
u32 helloint;
u32 rxmtint;
u32 pollint;
u32 waitint;
u32 deadc;
u32 deadint;
u32 inftransdelay;
list nbma_list;
u32 priority;
u32 voa;
u32 vid;
int tx_tos;
int tx_priority;
u16 tx_length;
u16 rx_buffer;
#define OSPF_RXBUF_MINSIZE 256 /* Minimal allowed size */
u16 autype; /* Not really used in OSPFv3 */
#define OSPF_AUTH_NONE 0
#define OSPF_AUTH_SIMPLE 1
#define OSPF_AUTH_CRYPT 2
#define OSPF_AUTH_CRYPT_SIZE 16
u8 strictnbma;
u8 check_link;
u8 ecmp_weight;
u8 real_bcast; /* Not really used in OSPFv3 */
u8 ptp_netmask; /* bool + 2 for unspecified */
u8 ttl_security; /* bool + 2 for TX only */
u8 bfd;
u8 bsd_secondary;
u8 instance_id;
list *passwords;
};
int ospf_import_control(struct proto *p, rte **new, ea_list **attrs,
struct linpool *pool);
struct ea_list *ospf_make_tmp_attrs(struct rte *rt, struct linpool *pool);
void ospf_store_tmp_attrs(struct rte *rt, struct ea_list *attrs);
void schedule_rt_lsa(struct ospf_area *oa);
void schedule_rtcalc(struct proto_ospf *po);
void schedule_net_lsa(struct ospf_iface *ifa);
static inline int ospf_is_v2(struct proto_ospf *po)
{ return po->ospf2; }
static inline int ospf_is_v3(struct proto_ospf *po)
{ return ! po->ospf2; }
static inline int ospf_get_version(struct proto_ospf *po)
{ return ospf_is_v2(po) ? 2 : 3; }
struct ospf_area *ospf_find_area(struct proto_ospf *po, u32 aid);
static inline struct ospf_area *ospf_main_area(struct proto_ospf *po)
{ return (po->areano == 1) ? HEAD(po->area_list) : po->backbone; }
static inline int oa_is_stub(struct ospf_area *oa)
{ return (oa->options & (OPT_E | OPT_N)) == 0; }
static inline int oa_is_ext(struct ospf_area *oa)
{ return oa->options & OPT_E; }
static inline int oa_is_nssa(struct ospf_area *oa)
{ return oa->options & OPT_N; }
void schedule_link_lsa(struct ospf_iface *ifa); // XXXX caller ??
void ospf_sh_neigh(struct proto *p, char *iff);
void ospf_sh(struct proto *p);
void ospf_sh_iface(struct proto *p, char *iff);
void ospf_sh_state(struct proto *p, int verbose, int reachable);
#define SH_ROUTER_SELF 0xffffffff
struct lsadb_show_data {
struct symbol *name; /* Protocol to request data from */
u16 type; /* LSA Type, 0 -> all */
u16 scope; /* Scope, 0 -> all, hack to handle link scope as 1 */
u32 area; /* Specified for area scope */
u32 lsid; /* LSA ID, 0 -> all */
u32 router; /* Advertising router, 0 -> all */
};
void ospf_sh_lsadb(struct lsadb_show_data *ld);
#define EA_OSPF_METRIC1 EA_CODE(EAP_OSPF, 0)
#define EA_OSPF_METRIC2 EA_CODE(EAP_OSPF, 1)
#define EA_OSPF_TAG EA_CODE(EAP_OSPF, 2)
#define EA_OSPF_ROUTER_ID EA_CODE(EAP_OSPF, 3)
#include "proto/ospf/rt.h"
#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"
#endif /* _BIRD_OSPF_H_ */
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