Sync with nest's rt table and some minor improvements.
This commit is contained in:
Ondrej Filip
parent
e80e9d0da5
commit
c6c5626436
9 changed files with 84 additions and 24 deletions
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@ -87,7 +87,7 @@ htonlsab(void *h, void *n, u8 type, u16 len)
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hs=h;
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ns=n;
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ns->netmask=htonl(hs->netmask);
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ns->netmask=ipa_hton(hs->netmask);
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hn=(struct ospf_lsa_summ_net *)(hs+1);
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nn=(struct ospf_lsa_summ_net *)(ns+1);
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@ -109,7 +109,7 @@ htonlsab(void *h, void *n, u8 type, u16 len)
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he=h;
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ne=n;
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ne->netmask=htonl(he->netmask);
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ne->netmask=ipa_hton(he->netmask);
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ht=(struct ospf_lsa_ext_tos *)(he+1);
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nt=(struct ospf_lsa_ext_tos *)(ne+1);
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@ -181,7 +181,7 @@ ntohlsab(void *n, void *h, u8 type, u16 len)
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hs=h;
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ns=n;
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hs->netmask=ntohl(ns->netmask);
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hs->netmask=ipa_ntoh(ns->netmask);
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hn=(struct ospf_lsa_summ_net *)(hs+1);
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nn=(struct ospf_lsa_summ_net *)(ns+1);
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@ -203,7 +203,7 @@ ntohlsab(void *n, void *h, u8 type, u16 len)
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he=h;
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ne=n;
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he->netmask=ntohl(ne->netmask);
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he->netmask=ipa_ntoh(ne->netmask);
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ht=(struct ospf_lsa_ext_tos *)(he+1);
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nt=(struct ospf_lsa_ext_tos *)(ne+1);
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@ -368,6 +368,18 @@ find_neigh(struct ospf_iface *ifa, u32 rid)
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return NULL;
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}
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struct ospf_neighbor *
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find_neigh_noifa(struct proto_ospf *po, u32 rid)
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{
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struct ospf_neighbor *n;
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struct ospf_iface *ifa;
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WALK_LIST (ifa, po->iface_list)
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if((n=find_neigh(ifa, rid))!=NULL)
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return n;
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return NULL;
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}
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struct ospf_area *
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ospf_find_area(struct proto_ospf *po, u32 aid)
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{
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@ -18,6 +18,7 @@ void tryadj(struct ospf_neighbor *n, struct proto *p);
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void ospf_neigh_sm(struct ospf_neighbor *n, int event);
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void bdr_election(struct ospf_iface *ifa, struct proto *p);
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struct ospf_neighbor *find_neigh(struct ospf_iface *ifa, u32 rid);
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struct ospf_neighbor *find_neigh_noifa(struct proto_ospf *po, u32 rid);
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struct ospf_area *ospf_find_area(struct proto_ospf *po, u32 aid);
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#endif /* _BIRD_OSPF_NEIGHBOR_H_ */
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@ -50,6 +50,7 @@ ospf_dump(struct proto *p)
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debug("%s: LSA graph dump for area \"%I\" finished\n\n", p->name,
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oa->areaid);
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}
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neigh_dump_all();
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}
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@ -32,6 +32,7 @@
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#define OSPF_VERSION 2
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#define AllSPFRouters ipa_from_u32(0xe0000005) /* 224.0.0.5 */
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#define AllDRouters ipa_from_u32(0xe0000006) /* 224.0.0.6 */
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#define DEFAULTDES ipa_from_u32(0)
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#else
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#error Multicast address not defined in IPv6
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#endif
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@ -40,8 +41,7 @@
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#define LSREFRESHTIME 1800 /* 30 minutes */
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#define MINLSINTERVAL 5
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#define MINLSARRIVAL 1
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#define LSINFINITY 0xffffff
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/*#define DEFAULTDES 0.0.0.0 FIXME: How to define it? */
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#define LSINFINITY 0xffff /* RFC says 0xffffff ??? */
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struct ospf_config {
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struct proto_config c;
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@ -203,11 +203,11 @@ struct ospf_lsa_rt_link_tos { /* Actually we ignore TOS. This is useless */
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};
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struct ospf_lsa_net {
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u32 netmask;
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ip_addr netmask;
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};
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struct ospf_lsa_summ {
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u32 netmask;
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ip_addr netmask;
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};
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struct ospf_lsa_summ_net {
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@ -217,7 +217,7 @@ struct ospf_lsa_summ_net {
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};
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struct ospf_lsa_ext {
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u32 netmask;
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ip_addr netmask;
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};
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struct ospf_lsa_ext_tos {
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@ -40,7 +40,7 @@ ospf_rt_spfa(struct ospf_area *oa, struct proto *p)
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{
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struct top_hash_entry *act,*tmp;
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node *n;
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struct ospf_lsa_net *net;
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struct ospf_lsa_net *netw;
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n=HEAD(oa->cand);
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act=SKIP_BACK(struct top_hash_entry, cn, n);
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@ -72,21 +72,53 @@ ospf_rt_spfa(struct ospf_area *oa, struct proto *p)
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log("Unknown link type in router lsa.\n");
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break;
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}
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add_cand(&oa->cand,tmp,act,act->dist+rtl->metric);
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add_cand(&oa->cand,tmp,act,act->dist+rtl->metric,p);
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}
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break;
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case LSA_T_NET:
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net=(struct ospf_lsa_net *)act->lsa_body;
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rts=(u32 *)(net+1);
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netw=(struct ospf_lsa_net *)act->lsa_body;
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rts=(u32 *)(netw+1);
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for(i=0;i<(act->lsa.length-sizeof(struct ospf_lsa_header)-
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sizeof(struct ospf_lsa_net))/sizeof(u32);i++)
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{
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tmp=ospf_hash_find(oa->gr, *rts, *rts, LSA_T_RT);
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add_cand(&oa->cand,tmp,act,act->dist);
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add_cand(&oa->cand,tmp,act,act->dist,p);
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}
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break;
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}
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/* FIXME Now modify rt for this entry */
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if((act->lsa.type==LSA_T_NET)&&(act->nhi!=NULL))
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{
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net *ne;
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rte *e;
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ip_addr ip;
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struct ospf_lsa_net *ln=en->lsa_body;
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a0.proto=p;
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a0.source=RTS_OSPF;
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a0.scope=SCOPE_UNIVERSE; /* What's this good for? */
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a0.cast=RTC_UNICAST;
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a0.dest=RTD_ROUTER; /* FIXME */
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a0.flags=0;
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a0.iface=act->nhi;
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a0.gw=act->nh;
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ip=ipa_from_u32(act->lsa.id);
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ne=net_get(p->table, ip, ipa_mklen(ln->netmask));
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e=rte_get_temp(&a0);
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e->u.ospf.metric1=en->dist;
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e->u.ospf.metric2=0;
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e->u.ospf.tag=0; /* FIXME Some config? */
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rte_update(p->table, ne, p, e);
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//a0.from=act->lsa.rt;
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}
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}
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/* Now calculate routes to stub networks */
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@ -121,7 +153,7 @@ ospf_rt_spfa(struct ospf_area *oa, struct proto *p)
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void
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add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
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u16 dist)
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u16 dist, struct proto *p)
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{
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node *prev,*n;
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int flag=0;
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@ -138,7 +170,9 @@ add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
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* multiple next hops. I'll start as soon as nest will
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*/
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en->nh=calc_next_hop(par);
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en->nhi=NULL;
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calc_next_hop(par,en,p);
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if(en->color==CANDIDATE) /* We found shorter path */
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{
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@ -166,12 +200,21 @@ add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
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}
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struct top_hash_entry *
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calc_next_hop(struct top_hash_entry *par)
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void
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calc_next_hop(struct top_hash_entry *par, struct top_hash_entry *en,
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struct proto *p)
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{
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if(par->nh==NULL)
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struct ospf_neighbor *neigh;
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struct proto_ospf *po=(struct proto_ospf *)p;
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if(par->nhi==NULL)
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{
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if(par->lsa.type!=LSA_T_RT) return NULL;
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neighbor *nn;
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if(par->lsa.type!=LSA_T_RT) return;
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if((neigh=find_neigh_noifa(po,en->lsa.rt))==NULL) bug("XXX\n");
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nn=neigh_find(p,&neigh->ip,0);
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en->nh=nn->addr;
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en->nhi=nn->iface;
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}
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return par;
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en->nh=par->nh;
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en->nhi=par->nhi;
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}
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@ -12,7 +12,8 @@
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void ospf_rt_spfa(struct ospf_area *oa, struct proto *p);
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void add_cand(list *l, struct top_hash_entry *en, struct top_hash_entry *par,
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u16 dist);
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struct top_hash_entry *calc_next_hop(struct top_hash_entry *par);
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u16 dist, struct proto *p);
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void calc_next_hop(struct top_hash_entry *par, struct top_hash_entry *en,
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struct proto *p);
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#endif /* _BIRD_OSPF_RT_H_ */
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@ -349,6 +349,7 @@ ospf_hash_get(struct top_graph *f, u32 lsa, u32 rtr, u32 type)
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e->lsa.rt = rtr;
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e->lsa.type = type;
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e->lsa_body = NULL;
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e->nhi=NULL;
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e->next=*ee; /* MJ you forgot this :-) */
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*ee=e;
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if (f->hash_entries++ > f->hash_entries_max)
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@ -16,7 +16,8 @@ struct top_hash_entry { /* Index for fast mapping (type,rtrid,LSid)->vertex */
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struct ospf_lsa_header lsa;
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void *lsa_body;
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bird_clock_t inst_t; /* Time of installation into DB */
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struct top_hash_entry *nh; /* Next hop */
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ip_addr nh; /* Next hop */
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struct iface *nhi;
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u16 dist; /* Distance from the root */
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u8 color;
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#define OUTSPF 0
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