Sending and receving of hello pkts works. No I will start building neighbor
database.
This commit is contained in:
Ondrej Filip
parent
4a4911a36a
commit
75b84c34e3
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@ -196,7 +196,7 @@ ospf_open_socket(struct proto *p, struct ospf_iface *ifa)
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{
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sock *mcsk;
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/* No NBMA networks now */
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/* FIXME: No NBMA networks now */
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if(ifa->iface->flags & IF_MULTICAST)
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{
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@ -261,16 +261,83 @@ ospf_iface_clasify(struct iface *ifa)
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return OSPF_IT_PTP;
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}
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void
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fill_ospf_pkt_hdr(struct ospf_iface *ifa, void *buf, u8 h_type)
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{
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struct ospf_packet *pkt;
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struct proto *p;
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p=(struct proto *)(ifa->proto);
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pkt=(struct ospf_packet *)buf;
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pkt->version=OSPF_VERSION;
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pkt->type=h_type;
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pkt->routerid=htonl(p->cf->global->router_id);
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pkt->areaid=htonl(ifa->area);
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pkt->autype=htons(ifa->autype);
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}
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void
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hello_timer_hook(timer *timer)
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{
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struct ospf_iface *ifa;
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struct ospf_hello_packet *pkt;
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struct ospf_packet *op;
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struct proto *p;
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struct ospf_neighbor *neigh;
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u16 length;
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u32 *pp;
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int i;
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ifa=(struct ospf_iface *)timer->data;
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p=(struct proto *)(ifa->proto);
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debug("%s: Hello timer fired on interface %s.\n",
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p->name, ifa->iface->name);
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/* Now we should send a hello packet */
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/* First a common packet header */
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//if(ifa->type!=OSPF_IT_NBMA)
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if(ifa->hello_sk!=NULL)
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{
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/* Now fill ospf_hello header */
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pkt=(struct ospf_hello_packet *)(ifa->hello_sk->tbuf);
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op=(struct ospf_packet *)pkt;
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fill_ospf_pkt_hdr(ifa, pkt, HELLO);
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pkt->netmask=ipa_mkmask(ifa->iface->addr->pxlen);
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ipa_hton(pkt->netmask);
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pkt->hello_int=ntohs(ifa->helloint);
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pkt->options=ifa->options;
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pkt->priority=ifa->priority;
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pkt->deadint=htonl(ifa->deadint*ifa->helloint);
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pkt->dr=ifa->drid;
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pkt->bdr=ifa->bdrid;
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/* Fill all neighbors */
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i=0;
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pp=(u32 *)(((byte *)pkt)+sizeof(struct ospf_hello_packet));
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WALK_LIST (neigh, ifa->neigh_list)
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{
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*(pp+i)=neigh->rid;
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i++;
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}
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length=sizeof(struct ospf_hello_packet)+i*sizeof(u32);
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op->length=ntohs(length);
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/* Do authentification */
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op->checksum=ipsum_calculate(op,sizeof(struct ospf_packet)-8,
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&(pkt->netmask),length-sizeof(struct ospf_packet),NULL);
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sk_send(ifa->hello_sk,length);
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/* XXXX */
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}
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}
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void
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@ -325,7 +392,7 @@ ospf_add_timers(struct ospf_iface *ifa, pool *pool, int wait)
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ifa->hello_timer->hook=hello_timer_hook;
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ifa->hello_timer->recurrent=ifa->helloint;
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ifa->hello_timer->expires=0;
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tm_start(ifa->hello_timer,0);
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tm_start(ifa->hello_timer,ifa->helloint);
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DBG("%s: Installing hello timer.\n", p->name);
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if((ifa->type!=OSPF_IT_PTP))
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{
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@ -359,7 +426,7 @@ ospf_iface_default(struct ospf_iface *ifa)
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ifa->deadint=DEADINT_D;
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ifa->autype=0;
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for(i=0;i<8;i++) ifa->aukey[i]=0;
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ifa->options=0;
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ifa->options=2;
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ifa->drip=ipa_from_u32(0x00000000);
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ifa->drid=0;
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ifa->bdrip=ipa_from_u32(0x00000000);
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@ -382,8 +449,7 @@ void
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ospf_if_notify(struct proto *p, unsigned flags, struct iface *iface)
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{
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struct ospf_iface *ifa;
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sock *mcsk, *newsk;
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struct ospf_sock *osk;
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sock *mcsk;
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struct ospf_config *c;
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c=(struct ospf_config *)(p->cf);
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@ -403,13 +469,17 @@ ospf_if_notify(struct proto *p, unsigned flags, struct iface *iface)
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ospf_iface_default(ifa);
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/* FIXME: This should read config */
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ospf_add_timers(ifa,p->pool,0);
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init_list(&(ifa->sk_list));
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if((mcsk=ospf_open_socket(p, ifa))!=NULL)
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if(ifa->type!=OSPF_IT_NBMA)
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{
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osk=(struct ospf_sock *)mb_alloc(p->pool, sizeof(struct ospf_sock));
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osk->sk=mcsk;
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add_tail(&(ifa->sk_list),NODE osk);
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if((mcsk=ospf_open_socket(p, ifa))!=NULL)
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{
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ifa->hello_sk=mcsk;
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}
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else log("Huh? could not open socket?");
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/* FIXME: In fail case??? */
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init_list(&(ifa->neigh_list));
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}
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/* FIXME: NBMA? */
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}
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if(flags & IF_CHANGE_DOWN)
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@ -33,7 +33,8 @@ struct ospf_iface {
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node n;
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struct proto_ospf *proto;
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struct iface *iface; /* Nest's iface */
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list sk_list; /* List of active sockets */
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sock *hello_sk; /* List of active sockets */
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list neigh_list; /* List of neigbours */
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u32 area; /* OSPF Area */
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u16 cost; /* Cost of iface */
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int rxmtint; /* number of seconds between LSA retransmissions */
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@ -73,11 +74,6 @@ struct ospf_iface {
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#define WAIT_DMH 2 /* Value of Wait timer - not found it in RFC - using 2*HELLO */
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};
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struct ospf_sock {
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node n;
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sock *sk;
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};
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struct ospf_patt {
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struct iface_patt i;
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