Babel: Update to integrated branch
This commit is contained in:
Ondrej Zajicek (work)
parent
2119ae74c2
commit
5e8df049fb
5 changed files with 131 additions and 144 deletions
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@ -185,8 +185,7 @@ fi
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AC_SUBST(iproutedir)
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# all_protocols="$proto_bfd babel bgp ospf pipe radv rip $proto_rpki static"
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all_protocols="$proto_bfd bgp ospf pipe radv rip $proto_rpki static "
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all_protocols="$proto_bfd babel bgp ospf pipe radv rip $proto_rpki static"
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all_protocols=`echo $all_protocols | sed 's/ /,/g'`
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@ -53,8 +53,7 @@ static void babel_dump_route(struct babel_route *r);
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static void babel_select_route(struct babel_entry *e);
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static void babel_send_route_request(struct babel_entry *e, struct babel_neighbor *n);
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static void babel_send_wildcard_request(struct babel_iface *ifa);
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static int babel_cache_seqno_request(struct babel_proto *p, ip_addr prefix, u8 plen,
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u64 router_id, u16 seqno);
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static int babel_cache_seqno_request(struct babel_proto *p, net_addr *n, u64 router_id, u16 seqno);
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static void babel_trigger_iface_update(struct babel_iface *ifa);
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static void babel_trigger_update(struct babel_proto *p);
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static void babel_send_seqno_request(struct babel_entry *e);
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@ -67,27 +66,25 @@ static inline void babel_iface_kick_timer(struct babel_iface *ifa);
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*/
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static void
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babel_init_entry(struct fib_node *n)
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babel_init_entry(void *E)
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{
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struct babel_entry *e = (void *) n;
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e->proto = NULL;
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e->selected_in = NULL;
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e->selected_out = NULL;
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struct babel_entry *e = E;
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e->updated = now;
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init_list(&e->sources);
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init_list(&e->routes);
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}
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static inline struct babel_entry *
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babel_find_entry(struct babel_proto *p, ip_addr prefix, u8 plen)
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babel_find_entry(struct babel_proto *p, const net_addr *n)
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{
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return fib_find(&p->rtable, &prefix, plen);
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return fib_find(&p->rtable, n);
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}
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static struct babel_entry *
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babel_get_entry(struct babel_proto *p, ip_addr prefix, u8 plen)
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babel_get_entry(struct babel_proto *p, const net_addr *n)
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{
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struct babel_entry *e = fib_get(&p->rtable, &prefix, plen);
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struct babel_entry *e = fib_get(&p->rtable, n);
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e->proto = p;
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return e;
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}
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@ -180,8 +177,8 @@ babel_flush_route(struct babel_route *r)
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{
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struct babel_proto *p = r->e->proto;
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DBG("Babel: Flush route %I/%d router_id %lR neigh %I\n",
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r->e->n.prefix, r->e->n.pxlen, r->router_id, r->neigh ? r->neigh->addr : IPA_NONE);
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DBG("Babel: Flush route %N router_id %lR neigh %I\n",
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r->e->n.addr, r->router_id, r->neigh ? r->neigh->addr : IPA_NONE);
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rem_node(NODE r);
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@ -203,8 +200,8 @@ babel_expire_route(struct babel_route *r)
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struct babel_proto *p = r->e->proto;
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struct babel_entry *e = r->e;
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TRACE(D_EVENTS, "Route expiry timer for %I/%d router-id %lR fired",
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e->n.prefix, e->n.pxlen, r->router_id);
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TRACE(D_EVENTS, "Route expiry timer for %N router-id %lR fired",
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e->n.addr, r->router_id);
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if (r->metric < BABEL_INFINITY)
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{
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@ -229,16 +226,14 @@ babel_refresh_route(struct babel_route *r)
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static void
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babel_expire_routes(struct babel_proto *p)
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{
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struct babel_entry *e;
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struct babel_route *r, *rx;
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struct fib_iterator fit;
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FIB_ITERATE_INIT(&fit, &p->rtable);
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loop:
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FIB_ITERATE_START(&p->rtable, &fit, n)
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FIB_ITERATE_START(&p->rtable, &fit, struct babel_entry, e)
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{
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e = (struct babel_entry *) n;
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int changed = 0;
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WALK_LIST_DELSAFE(r, rx, e->routes)
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@ -261,7 +256,7 @@ loop:
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* babel_rt_notify() -> p->rtable change, invalidating hidden variables.
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*/
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FIB_ITERATE_PUT(&fit, n);
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FIB_ITERATE_PUT(&fit);
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babel_select_route(e);
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goto loop;
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}
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@ -271,12 +266,12 @@ loop:
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/* Remove empty entries */
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if (EMPTY_LIST(e->sources) && EMPTY_LIST(e->routes))
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{
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FIB_ITERATE_PUT(&fit, n);
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FIB_ITERATE_PUT(&fit);
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fib_delete(&p->rtable, e);
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goto loop;
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}
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}
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FIB_ITERATE_END(n);
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FIB_ITERATE_END;
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}
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static struct babel_neighbor *
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@ -476,8 +471,7 @@ babel_announce_rte(struct babel_proto *p, struct babel_entry *e)
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if (r)
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{
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net *n = net_get(p->p.table, e->n.prefix, e->n.pxlen);
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rta A = {
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rta a0 = {
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.src = p->p.main_source,
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.source = RTS_BABEL,
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.scope = SCOPE_UNIVERSE,
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@ -489,22 +483,20 @@ babel_announce_rte(struct babel_proto *p, struct babel_entry *e)
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};
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if (r->metric < BABEL_INFINITY)
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A.gw = r->next_hop;
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a0.gw = r->next_hop;
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rta *a = rta_lookup(&A);
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rta *a = rta_lookup(&a0);
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rte *rte = rte_get_temp(a);
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rte->u.babel.metric = r->metric;
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rte->u.babel.router_id = r->router_id;
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rte->net = n;
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rte->pflags = 0;
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rte_update(&p->p, n, rte);
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rte_update(&p->p, e->n.addr, rte);
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}
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else
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{
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/* Retraction */
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net *n = net_find(p->p.table, e->n.prefix, e->n.pxlen);
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rte_update(&p->p, n, NULL);
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rte_update(&p->p, e->n.addr, NULL);
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}
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}
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@ -541,8 +533,8 @@ babel_select_route(struct babel_entry *e)
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((!e->selected_in && cur->metric < BABEL_INFINITY) ||
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(e->selected_in && cur->metric < e->selected_in->metric)))
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{
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TRACE(D_EVENTS, "Picked new route for prefix %I/%d: router id %lR metric %d",
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e->n.prefix, e->n.pxlen, cur->router_id, cur->metric);
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TRACE(D_EVENTS, "Picked new route for prefix %N: router id %lR metric %d",
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e->n.addr, cur->router_id, cur->metric);
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e->selected_in = cur;
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e->updated = now;
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@ -557,8 +549,8 @@ babel_select_route(struct babel_entry *e)
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babel_build_rte() will set the unreachable flag if the metric is BABEL_INFINITY.*/
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if (e->selected_in)
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{
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TRACE(D_EVENTS, "Lost feasible route for prefix %I/%d",
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e->n.prefix, e->n.pxlen);
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TRACE(D_EVENTS, "Lost feasible route for prefix %N",
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e->n.addr);
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e->selected_in->metric = BABEL_INFINITY;
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e->updated = now;
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@ -576,7 +568,7 @@ babel_select_route(struct babel_entry *e)
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/* No route currently selected, and no new one selected; this means we
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don't have a route to this destination anymore (and were probably
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called from an expiry timer). Remove the route from the nest. */
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TRACE(D_EVENTS, "Flushing route for prefix %I/%d", e->n.prefix, e->n.pxlen);
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TRACE(D_EVENTS, "Flushing route for prefix %N", e->n.addr);
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e->selected_in = NULL;
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e->updated = now;
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@ -663,12 +655,11 @@ babel_send_route_request(struct babel_entry *e, struct babel_neighbor *n)
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struct babel_iface *ifa = n->ifa;
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union babel_msg msg = {};
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TRACE(D_PACKETS, "Sending route request for %I/%d to %I",
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e->n.prefix, e->n.pxlen, n->addr);
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TRACE(D_PACKETS, "Sending route request for %N to %I",
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e->n.addr, n->addr);
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msg.type = BABEL_TLV_ROUTE_REQUEST;
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msg.route_request.prefix = e->n.prefix;
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msg.route_request.plen = e->n.pxlen;
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net_copy(&msg.route_request.net, e->n.addr);
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babel_send_unicast(&msg, ifa, n->addr);
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}
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@ -698,18 +689,17 @@ babel_send_seqno_request(struct babel_entry *e)
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union babel_msg msg = {};
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s = babel_find_source(e, r->router_id);
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if (!s || !babel_cache_seqno_request(p, e->n.prefix, e->n.pxlen, r->router_id, s->seqno + 1))
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if (!s || !babel_cache_seqno_request(p, e->n.addr, r->router_id, s->seqno + 1))
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return;
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TRACE(D_PACKETS, "Sending seqno request for %I/%d router-id %lR seqno %d",
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e->n.prefix, e->n.pxlen, r->router_id, s->seqno + 1);
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TRACE(D_PACKETS, "Sending seqno request for %N router-id %lR seqno %d",
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e->n.addr, r->router_id, s->seqno + 1);
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msg.type = BABEL_TLV_SEQNO_REQUEST;
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msg.seqno_request.plen = e->n.pxlen;
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msg.seqno_request.seqno = s->seqno + 1;
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msg.seqno_request.hop_count = BABEL_INITIAL_HOP_COUNT;
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msg.seqno_request.seqno = s->seqno + 1;
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msg.seqno_request.router_id = r->router_id;
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msg.seqno_request.prefix = e->n.prefix;
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net_copy(&msg.seqno_request.net, e->n.addr);
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WALK_LIST(ifa, p->interfaces)
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babel_enqueue(&msg, ifa);
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@ -725,18 +715,17 @@ babel_unicast_seqno_request(struct babel_route *r)
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union babel_msg msg = {};
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s = babel_find_source(e, r->router_id);
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if (!s || !babel_cache_seqno_request(p, e->n.prefix, e->n.pxlen, r->router_id, s->seqno + 1))
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if (!s || !babel_cache_seqno_request(p, e->n.addr, r->router_id, s->seqno + 1))
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return;
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TRACE(D_PACKETS, "Sending seqno request for %I/%d router-id %lR seqno %d",
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e->n.prefix, e->n.pxlen, r->router_id, s->seqno + 1);
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TRACE(D_PACKETS, "Sending seqno request for %N router-id %lR seqno %d",
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e->n.addr, r->router_id, s->seqno + 1);
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msg.type = BABEL_TLV_SEQNO_REQUEST;
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msg.seqno_request.plen = e->n.pxlen;
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msg.seqno_request.seqno = s->seqno + 1;
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msg.seqno_request.hop_count = BABEL_INITIAL_HOP_COUNT;
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msg.seqno_request.seqno = s->seqno + 1;
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msg.seqno_request.router_id = r->router_id;
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msg.seqno_request.prefix = e->n.prefix;
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net_copy(&msg.seqno_request.net, e->n.addr);
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babel_send_unicast(&msg, ifa, r->neigh->addr);
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}
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@ -756,9 +745,8 @@ babel_send_update(struct babel_iface *ifa, bird_clock_t changed)
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{
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struct babel_proto *p = ifa->proto;
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FIB_WALK(&p->rtable, n)
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FIB_WALK(&p->rtable, struct babel_entry, e)
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{
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struct babel_entry *e = (void *) n;
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struct babel_route *r = e->selected_out;
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if (!r)
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@ -776,17 +764,16 @@ babel_send_update(struct babel_iface *ifa, bird_clock_t changed)
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if (e->updated < changed)
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continue;
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TRACE(D_PACKETS, "Sending update for %I/%d router-id %lR seqno %d metric %d",
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e->n.prefix, e->n.pxlen, r->router_id, r->seqno, r->metric);
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TRACE(D_PACKETS, "Sending update for %N router-id %lR seqno %d metric %d",
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e->n.addr, r->router_id, r->seqno, r->metric);
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union babel_msg msg = {};
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msg.type = BABEL_TLV_UPDATE;
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msg.update.plen = e->n.pxlen;
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msg.update.interval = ifa->cf->update_interval;
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msg.update.seqno = r->seqno;
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msg.update.metric = r->metric;
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msg.update.prefix = e->n.prefix;
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msg.update.router_id = r->router_id;
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net_copy(&msg.update.net, e->n.addr);
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babel_enqueue(&msg, ifa);
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@ -839,20 +826,18 @@ babel_trigger_update(struct babel_proto *p)
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/* A retraction is an update with an infinite metric */
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static void
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babel_send_retraction(struct babel_iface *ifa, ip_addr prefix, int plen)
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babel_send_retraction(struct babel_iface *ifa, net_addr *n)
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{
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struct babel_proto *p = ifa->proto;
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union babel_msg msg = {};
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TRACE(D_PACKETS, "Sending retraction for %I/%d seqno %d",
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prefix, plen, p->update_seqno);
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TRACE(D_PACKETS, "Sending retraction for %N seqno %d", n, p->update_seqno);
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msg.type = BABEL_TLV_UPDATE;
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msg.update.plen = plen;
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msg.update.interval = ifa->cf->update_interval;
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msg.update.seqno = p->update_seqno;
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msg.update.metric = BABEL_INFINITY;
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msg.update.prefix = prefix;
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msg.update.net = *n;
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babel_enqueue(&msg, ifa);
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}
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@ -941,22 +926,20 @@ babel_expire_seqno_requests(struct babel_proto *p)
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* found. Otherwise, a new entry is stored in the cache.
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*/
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static int
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babel_cache_seqno_request(struct babel_proto *p, ip_addr prefix, u8 plen,
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babel_cache_seqno_request(struct babel_proto *p, net_addr *n,
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u64 router_id, u16 seqno)
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{
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struct babel_seqno_request *r;
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WALK_LIST(r, p->seqno_cache)
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{
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if (ipa_equal(r->prefix, prefix) && (r->plen == plen) &&
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(r->router_id == router_id) && (r->seqno == seqno))
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if (net_equal(&r->net, n) && (r->router_id == router_id) && (r->seqno == seqno))
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return 0;
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}
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/* no entries found */
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r = sl_alloc(p->seqno_slab);
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r->prefix = prefix;
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r->plen = plen;
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net_copy(&r->net, n);
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r->router_id = router_id;
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r->seqno = seqno;
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r->updated = now;
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@ -973,8 +956,8 @@ babel_forward_seqno_request(struct babel_entry *e,
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struct babel_proto *p = e->proto;
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struct babel_route *r;
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TRACE(D_PACKETS, "Forwarding seqno request for %I/%d router-id %lR seqno %d",
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e->n.prefix, e->n.pxlen, in->router_id, in->seqno);
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TRACE(D_PACKETS, "Forwarding seqno request for %N router-id %lR seqno %d",
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e->n.addr, in->router_id, in->seqno);
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WALK_LIST(r, e->routes)
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{
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@ -982,16 +965,15 @@ babel_forward_seqno_request(struct babel_entry *e,
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!OUR_ROUTE(r) &&
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!ipa_equal(r->neigh->addr, sender))
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{
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if (!babel_cache_seqno_request(p, e->n.prefix, e->n.pxlen, in->router_id, in->seqno))
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if (!babel_cache_seqno_request(p, e->n.addr, in->router_id, in->seqno))
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return;
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union babel_msg msg = {};
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msg.type = BABEL_TLV_SEQNO_REQUEST;
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msg.seqno_request.plen = in->plen;
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msg.seqno_request.seqno = in->seqno;
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msg.seqno_request.hop_count = in->hop_count-1;
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msg.seqno_request.seqno = in->seqno;
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msg.seqno_request.router_id = in->router_id;
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msg.seqno_request.prefix = e->n.prefix;
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net_copy(&msg.seqno_request.net, e->n.addr);
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babel_send_unicast(&msg, r->neigh->ifa, r->neigh->addr);
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return;
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@ -1073,8 +1055,11 @@ babel_handle_update(union babel_msg *m, struct babel_iface *ifa)
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node *n;
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int feasible;
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TRACE(D_PACKETS, "Handling update for %I/%d with seqno %d metric %d",
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msg->prefix, msg->plen, msg->seqno, msg->metric);
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if (msg->wildcard)
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TRACE(D_PACKETS, "Handling wildcard retraction", msg->seqno);
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else
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TRACE(D_PACKETS, "Handling update for %N with seqno %d metric %d",
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&msg->net, msg->seqno, msg->metric);
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nbr = babel_find_neighbor(ifa, msg->sender);
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if (!nbr)
|
||||
|
|
@ -1140,7 +1125,7 @@ babel_handle_update(union babel_msg *m, struct babel_iface *ifa)
|
|||
}
|
||||
else
|
||||
{
|
||||
e = babel_find_entry(p, msg->prefix, msg->plen);
|
||||
e = babel_find_entry(p, &msg->net);
|
||||
|
||||
if (!e)
|
||||
return;
|
||||
|
|
@ -1159,7 +1144,7 @@ babel_handle_update(union babel_msg *m, struct babel_iface *ifa)
|
|||
return;
|
||||
}
|
||||
|
||||
e = babel_get_entry(p, msg->prefix, msg->plen);
|
||||
e = babel_get_entry(p, &msg->net);
|
||||
r = babel_find_route(e, nbr); /* the route entry indexed by neighbour */
|
||||
s = babel_find_source(e, msg->router_id); /* for feasibility */
|
||||
feasible = babel_is_feasible(s, msg->seqno, msg->metric);
|
||||
|
|
@ -1231,14 +1216,14 @@ babel_handle_route_request(union babel_msg *m, struct babel_iface *ifa)
|
|||
return;
|
||||
}
|
||||
|
||||
TRACE(D_PACKETS, "Handling route request for %I/%d", msg->prefix, msg->plen);
|
||||
TRACE(D_PACKETS, "Handling route request for %N", &msg->net);
|
||||
|
||||
/* Non-wildcard request - see if we have an entry for the route.
|
||||
If not, send a retraction, otherwise send an update. */
|
||||
struct babel_entry *e = babel_find_entry(p, msg->prefix, msg->plen);
|
||||
struct babel_entry *e = babel_find_entry(p, &msg->net);
|
||||
if (!e)
|
||||
{
|
||||
babel_send_retraction(ifa, msg->prefix, msg->plen);
|
||||
babel_send_retraction(ifa, &msg->net);
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
@ -1256,11 +1241,11 @@ babel_handle_seqno_request(union babel_msg *m, struct babel_iface *ifa)
|
|||
|
||||
/* RFC 6126 3.8.1.2 */
|
||||
|
||||
TRACE(D_PACKETS, "Handling seqno request for %I/%d router-id %lR seqno %d hop count %d",
|
||||
msg->prefix, msg->plen, msg->router_id, msg->seqno, msg->hop_count);
|
||||
TRACE(D_PACKETS, "Handling seqno request for %N router-id %lR seqno %d hop count %d",
|
||||
&msg->net, msg->router_id, msg->seqno, msg->hop_count);
|
||||
|
||||
/* Ignore if we have no such entry or entry has infinite metric */
|
||||
struct babel_entry *e = babel_find_entry(p, msg->prefix, msg->plen);
|
||||
struct babel_entry *e = babel_find_entry(p, &msg->net);
|
||||
if (!e || !e->selected_out || (e->selected_out->metric == BABEL_INFINITY))
|
||||
return;
|
||||
|
||||
|
|
@ -1668,7 +1653,7 @@ babel_dump_entry(struct babel_entry *e)
|
|||
struct babel_source *s;
|
||||
struct babel_route *r;
|
||||
|
||||
debug("Babel: Entry %I/%d:\n", e->n.prefix, e->n.pxlen);
|
||||
debug("Babel: Entry %N:\n", e->n.addr);
|
||||
|
||||
WALK_LIST(s,e->sources)
|
||||
{ debug(" "); babel_dump_source(s); }
|
||||
|
|
@ -1715,9 +1700,9 @@ babel_dump(struct proto *P)
|
|||
WALK_LIST(ifa, p->interfaces)
|
||||
babel_dump_iface(ifa);
|
||||
|
||||
FIB_WALK(&p->rtable, n)
|
||||
FIB_WALK(&p->rtable, struct babel_entry, e)
|
||||
{
|
||||
babel_dump_entry((struct babel_entry *) n);
|
||||
babel_dump_entry(e);
|
||||
}
|
||||
FIB_WALK_END;
|
||||
}
|
||||
|
|
@ -1828,11 +1813,9 @@ void
|
|||
babel_show_entries(struct proto *P)
|
||||
{
|
||||
struct babel_proto *p = (void *) P;
|
||||
struct babel_entry *e = NULL;
|
||||
struct babel_source *s = NULL;
|
||||
struct babel_route *r = NULL;
|
||||
|
||||
char ipbuf[STD_ADDRESS_P_LENGTH+5];
|
||||
char ridbuf[ROUTER_ID_64_LENGTH+1];
|
||||
|
||||
if (p->p.proto_state != PS_UP)
|
||||
|
|
@ -1846,17 +1829,14 @@ babel_show_entries(struct proto *P)
|
|||
cli_msg(-1025, "%-29s %-23s %6s %5s %7s %7s",
|
||||
"Prefix", "Router ID", "Metric", "Seqno", "Expires", "Sources");
|
||||
|
||||
FIB_WALK(&p->rtable, n)
|
||||
FIB_WALK(&p->rtable, struct babel_entry, e)
|
||||
{
|
||||
e = (struct babel_entry *) n;
|
||||
r = e->selected_in ? e->selected_in : e->selected_out;
|
||||
|
||||
int srcs = 0;
|
||||
WALK_LIST(s, e->sources)
|
||||
srcs++;
|
||||
|
||||
bsprintf(ipbuf, "%I/%u", e->n.prefix, e->n.pxlen);
|
||||
|
||||
if (r)
|
||||
{
|
||||
if (r->router_id == p->router_id)
|
||||
|
|
@ -1865,12 +1845,12 @@ babel_show_entries(struct proto *P)
|
|||
bsprintf(ridbuf, "%lR", r->router_id);
|
||||
|
||||
int time = r->expires ? r->expires - now : 0;
|
||||
cli_msg(-1025, "%-29s %-23s %6u %5u %7u %7u",
|
||||
ipbuf, ridbuf, r->metric, r->seqno, MAX(time, 0), srcs);
|
||||
cli_msg(-1025, "%-29N %-23s %6u %5u %7u %7u",
|
||||
e->n.addr, ridbuf, r->metric, r->seqno, MAX(time, 0), srcs);
|
||||
}
|
||||
else
|
||||
{
|
||||
cli_msg(-1025, "%-29s %-44s %7u", ipbuf, "<pending>", srcs);
|
||||
cli_msg(-1025, "%-29N %-44s %7u", e->n.addr, "<pending>", srcs);
|
||||
}
|
||||
}
|
||||
FIB_WALK_END;
|
||||
|
|
@ -1964,7 +1944,7 @@ babel_store_tmp_attrs(struct rte *rt, struct ea_list *attrs)
|
|||
* so store it into our data structures.
|
||||
*/
|
||||
static void
|
||||
babel_rt_notify(struct proto *P, struct rtable *table UNUSED, struct network *net,
|
||||
babel_rt_notify(struct proto *P, struct channel *c UNUSED, struct network *net,
|
||||
struct rte *new, struct rte *old UNUSED, struct ea_list *attrs UNUSED)
|
||||
{
|
||||
struct babel_proto *p = (void *) P;
|
||||
|
|
@ -1974,7 +1954,7 @@ babel_rt_notify(struct proto *P, struct rtable *table UNUSED, struct network *ne
|
|||
if (new)
|
||||
{
|
||||
/* Update */
|
||||
e = babel_get_entry(p, net->n.prefix, net->n.pxlen);
|
||||
e = babel_get_entry(p, net->n.addr);
|
||||
|
||||
if (new->attrs->src->proto != P)
|
||||
{
|
||||
|
|
@ -1996,7 +1976,7 @@ babel_rt_notify(struct proto *P, struct rtable *table UNUSED, struct network *ne
|
|||
else
|
||||
{
|
||||
/* Withdraw */
|
||||
e = babel_find_entry(p, net->n.prefix, net->n.pxlen);
|
||||
e = babel_find_entry(p, net->n.addr);
|
||||
if (!e || !e->selected_out)
|
||||
return;
|
||||
|
||||
|
|
@ -2046,11 +2026,12 @@ babel_rte_same(struct rte *new, struct rte *old)
|
|||
|
||||
|
||||
static struct proto *
|
||||
babel_init(struct proto_config *cfg)
|
||||
babel_init(struct proto_config *CF)
|
||||
{
|
||||
struct proto *P = proto_new(cfg, sizeof(struct babel_proto));
|
||||
struct proto *P = proto_new(CF);
|
||||
|
||||
P->main_channel = proto_add_channel(P, proto_cf_main_channel(CF));
|
||||
|
||||
P->accept_ra_types = RA_OPTIMAL;
|
||||
P->if_notify = babel_if_notify;
|
||||
P->rt_notify = babel_rt_notify;
|
||||
P->import_control = babel_import_control;
|
||||
|
|
@ -2068,7 +2049,8 @@ babel_start(struct proto *P)
|
|||
struct babel_proto *p = (void *) P;
|
||||
struct babel_config *cf = (void *) P->cf;
|
||||
|
||||
fib_init(&p->rtable, P->pool, sizeof(struct babel_entry), 0, babel_init_entry);
|
||||
fib_init(&p->rtable, P->pool, NET_IP6, sizeof(struct babel_entry),
|
||||
OFFSETOF(struct babel_entry, n), 0, babel_init_entry);
|
||||
init_list(&p->interfaces);
|
||||
p->timer = tm_new_set(P->pool, babel_timer, p, 0, 1);
|
||||
tm_start(p->timer, 2);
|
||||
|
|
@ -2111,14 +2093,17 @@ babel_shutdown(struct proto *P)
|
|||
}
|
||||
|
||||
static int
|
||||
babel_reconfigure(struct proto *P, struct proto_config *c)
|
||||
babel_reconfigure(struct proto *P, struct proto_config *CF)
|
||||
{
|
||||
struct babel_proto *p = (void *) P;
|
||||
struct babel_config *new = (void *) c;
|
||||
struct babel_config *new = (void *) CF;
|
||||
|
||||
TRACE(D_EVENTS, "Reconfiguring");
|
||||
|
||||
p->p.cf = c;
|
||||
if (!proto_configure_channel(P, &P->main_channel, proto_cf_main_channel(CF)))
|
||||
return 0;
|
||||
|
||||
p->p.cf = CF;
|
||||
babel_reconfigure_ifaces(p, new);
|
||||
|
||||
babel_trigger_update(p);
|
||||
|
|
@ -2133,6 +2118,8 @@ struct protocol proto_babel = {
|
|||
.template = "babel%d",
|
||||
.attr_class = EAP_BABEL,
|
||||
.preference = DEF_PREF_BABEL,
|
||||
.channel_mask = NB_IP6,
|
||||
.proto_size = sizeof(struct babel_proto),
|
||||
.config_size = sizeof(struct babel_config),
|
||||
.init = babel_init,
|
||||
.dump = babel_dump,
|
||||
|
|
|
|||
|
|
@ -52,7 +52,7 @@
|
|||
/* Max interval that will not overflow when carried as 16-bit centiseconds */
|
||||
#define BABEL_MAX_INTERVAL (0xFFFF/BABEL_TIME_UNITS)
|
||||
|
||||
#define BABEL_OVERHEAD (SIZE_OF_IP_HEADER+UDP_HEADER_LENGTH)
|
||||
#define BABEL_OVERHEAD (IP6_HEADER_LENGTH+UDP_HEADER_LENGTH)
|
||||
#define BABEL_MIN_MTU (512 + BABEL_OVERHEAD)
|
||||
|
||||
|
||||
|
|
@ -208,7 +208,6 @@ struct babel_route {
|
|||
};
|
||||
|
||||
struct babel_entry {
|
||||
struct fib_node n;
|
||||
struct babel_proto *proto;
|
||||
struct babel_route *selected_in;
|
||||
struct babel_route *selected_out;
|
||||
|
|
@ -217,13 +216,14 @@ struct babel_entry {
|
|||
|
||||
list sources; /* Source entries for this prefix (struct babel_source). */
|
||||
list routes; /* Routes for this prefix (struct babel_route) */
|
||||
|
||||
struct fib_node n;
|
||||
};
|
||||
|
||||
/* Stores forwarded seqno requests for duplicate suppression. */
|
||||
struct babel_seqno_request {
|
||||
node n;
|
||||
ip_addr prefix;
|
||||
u8 plen;
|
||||
net_addr net;
|
||||
u64 router_id;
|
||||
u16 seqno;
|
||||
bird_clock_t updated;
|
||||
|
|
@ -265,12 +265,11 @@ struct babel_msg_ihu {
|
|||
struct babel_msg_update {
|
||||
u8 type;
|
||||
u8 wildcard;
|
||||
u8 plen;
|
||||
u16 interval;
|
||||
u16 seqno;
|
||||
u16 metric;
|
||||
ip_addr prefix;
|
||||
u64 router_id;
|
||||
net_addr net;
|
||||
ip_addr next_hop;
|
||||
ip_addr sender;
|
||||
};
|
||||
|
|
@ -278,17 +277,15 @@ struct babel_msg_update {
|
|||
struct babel_msg_route_request {
|
||||
u8 type;
|
||||
u8 full;
|
||||
u8 plen;
|
||||
ip_addr prefix;
|
||||
net_addr net;
|
||||
};
|
||||
|
||||
struct babel_msg_seqno_request {
|
||||
u8 type;
|
||||
u8 plen;
|
||||
u16 seqno;
|
||||
u8 hop_count;
|
||||
u16 seqno;
|
||||
u64 router_id;
|
||||
ip_addr prefix;
|
||||
net_addr net;
|
||||
ip_addr sender;
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -30,11 +30,13 @@ CF_ADDTO(proto, babel_proto)
|
|||
babel_proto_start: proto_start BABEL
|
||||
{
|
||||
this_proto = proto_config_new(&proto_babel, $1);
|
||||
this_proto->net_type = NET_IP6;
|
||||
init_list(&BABEL_CFG->iface_list);
|
||||
};
|
||||
|
||||
babel_proto_item:
|
||||
proto_item
|
||||
| proto_channel
|
||||
| INTERFACE babel_iface
|
||||
;
|
||||
|
||||
|
|
|
|||
|
|
@ -146,7 +146,8 @@ struct babel_write_state {
|
|||
#define TLV_HDR(tlv,t,l) ({ tlv->type = t; tlv->length = l - sizeof(struct babel_tlv); })
|
||||
#define TLV_HDR0(tlv,t) TLV_HDR(tlv, t, tlv_data[t].min_length)
|
||||
|
||||
#define BYTES(n) ((((uint) n) + 7) / 8)
|
||||
#define NET_SIZE(n) BYTES(net_pxlen(n))
|
||||
|
||||
|
||||
static inline u16
|
||||
get_time16(const void *p)
|
||||
|
|
@ -161,19 +162,19 @@ put_time16(void *p, u16 v)
|
|||
put_u16(p, v * BABEL_TIME_UNITS);
|
||||
}
|
||||
|
||||
static inline ip6_addr
|
||||
get_ip6_px(const void *p, uint plen)
|
||||
static inline void
|
||||
read_ip6_px(net_addr *n, const void *p, uint plen)
|
||||
{
|
||||
ip6_addr addr = IPA_NONE;
|
||||
memcpy(&addr, p, BYTES(plen));
|
||||
return ip6_ntoh(addr);
|
||||
net_fill_ip6(n, ip6_ntoh(addr), plen);
|
||||
}
|
||||
|
||||
static inline void
|
||||
put_ip6_px(void *p, ip6_addr addr, uint plen)
|
||||
put_ip6_px(void *p, net_addr *n)
|
||||
{
|
||||
addr = ip6_hton(addr);
|
||||
memcpy(p, &addr, BYTES(plen));
|
||||
ip6_addr addr = ip6_hton(net6_prefix(n));
|
||||
memcpy(p, &addr, NET_SIZE(n));
|
||||
}
|
||||
|
||||
static inline ip6_addr
|
||||
|
|
@ -480,6 +481,9 @@ babel_read_update(struct babel_tlv *hdr, union babel_msg *m,
|
|||
if (tlv->plen > 0)
|
||||
return PARSE_ERROR;
|
||||
|
||||
if (msg->metric != 65535)
|
||||
return PARSE_ERROR;
|
||||
|
||||
msg->wildcard = 1;
|
||||
break;
|
||||
|
||||
|
|
@ -488,7 +492,7 @@ babel_read_update(struct babel_tlv *hdr, union babel_msg *m,
|
|||
return PARSE_IGNORE;
|
||||
|
||||
case BABEL_AE_IP6:
|
||||
if (tlv->plen > MAX_PREFIX_LENGTH)
|
||||
if (tlv->plen > IP6_MAX_PREFIX_LENGTH)
|
||||
return PARSE_ERROR;
|
||||
|
||||
/* Cannot omit data if there is no saved prefix */
|
||||
|
|
@ -499,18 +503,18 @@ babel_read_update(struct babel_tlv *hdr, union babel_msg *m,
|
|||
memcpy(buf, state->def_ip6_prefix, tlv->omitted);
|
||||
memcpy(buf + tlv->omitted, tlv->addr, len);
|
||||
|
||||
msg->plen = tlv->plen;
|
||||
msg->prefix = ipa_from_ip6(get_ip6(buf));
|
||||
ip6_addr prefix = get_ip6(buf);
|
||||
net_fill_ip6(&msg->net, prefix, tlv->plen);
|
||||
|
||||
if (tlv->flags & BABEL_FLAG_DEF_PREFIX)
|
||||
{
|
||||
put_ip6(state->def_ip6_prefix, msg->prefix);
|
||||
put_ip6(state->def_ip6_prefix, prefix);
|
||||
state->def_ip6_prefix_seen = 1;
|
||||
}
|
||||
|
||||
if (tlv->flags & BABEL_FLAG_ROUTER_ID)
|
||||
{
|
||||
state->router_id = ((u64) _I2(msg->prefix)) << 32 | _I3(msg->prefix);
|
||||
state->router_id = ((u64) _I2(prefix)) << 32 | _I3(prefix);
|
||||
state->router_id_seen = 1;
|
||||
}
|
||||
break;
|
||||
|
|
@ -559,7 +563,7 @@ babel_write_update(struct babel_tlv *hdr, union babel_msg *m,
|
|||
tlv = (struct babel_tlv_update *) NEXT_TLV(tlv);
|
||||
}
|
||||
|
||||
uint len = sizeof(struct babel_tlv_update) + BYTES(msg->plen);
|
||||
uint len = sizeof(struct babel_tlv_update) + NET_SIZE(&msg->net);
|
||||
|
||||
if (len0 + len > max_len)
|
||||
return 0;
|
||||
|
|
@ -575,8 +579,8 @@ babel_write_update(struct babel_tlv *hdr, union babel_msg *m,
|
|||
else
|
||||
{
|
||||
tlv->ae = BABEL_AE_IP6;
|
||||
tlv->plen = msg->plen;
|
||||
put_ip6_px(tlv->addr, msg->prefix, msg->plen);
|
||||
tlv->plen = net6_pxlen(&msg->net);
|
||||
put_ip6_px(tlv->addr, &msg->net);
|
||||
}
|
||||
|
||||
put_time16(&tlv->interval, msg->interval);
|
||||
|
|
@ -610,14 +614,13 @@ babel_read_route_request(struct babel_tlv *hdr, union babel_msg *m,
|
|||
return PARSE_IGNORE;
|
||||
|
||||
case BABEL_AE_IP6:
|
||||
if (tlv->plen > MAX_PREFIX_LENGTH)
|
||||
if (tlv->plen > IP6_MAX_PREFIX_LENGTH)
|
||||
return PARSE_ERROR;
|
||||
|
||||
if (TLV_OPT_LENGTH(tlv) < BYTES(tlv->plen))
|
||||
return PARSE_ERROR;
|
||||
|
||||
msg->plen = tlv->plen;
|
||||
msg->prefix = get_ip6_px(tlv->addr, tlv->plen);
|
||||
read_ip6_px(&msg->net, tlv->addr, tlv->plen);
|
||||
return PARSE_SUCCESS;
|
||||
|
||||
case BABEL_AE_IP6_LL:
|
||||
|
|
@ -637,7 +640,7 @@ babel_write_route_request(struct babel_tlv *hdr, union babel_msg *m,
|
|||
struct babel_tlv_route_request *tlv = (void *) hdr;
|
||||
struct babel_msg_route_request *msg = &m->route_request;
|
||||
|
||||
uint len = sizeof(struct babel_tlv_route_request) + BYTES(msg->plen);
|
||||
uint len = sizeof(struct babel_tlv_route_request) + NET_SIZE(&msg->net);
|
||||
|
||||
if (len > max_len)
|
||||
return 0;
|
||||
|
|
@ -652,8 +655,8 @@ babel_write_route_request(struct babel_tlv *hdr, union babel_msg *m,
|
|||
else
|
||||
{
|
||||
tlv->ae = BABEL_AE_IP6;
|
||||
tlv->plen = msg->plen;
|
||||
put_ip6_px(tlv->addr, msg->prefix, msg->plen);
|
||||
tlv->plen = net6_pxlen(&msg->net);
|
||||
put_ip6_px(tlv->addr, &msg->net);
|
||||
}
|
||||
|
||||
return len;
|
||||
|
|
@ -685,14 +688,13 @@ babel_read_seqno_request(struct babel_tlv *hdr, union babel_msg *m,
|
|||
return PARSE_IGNORE;
|
||||
|
||||
case BABEL_AE_IP6:
|
||||
if (tlv->plen > MAX_PREFIX_LENGTH)
|
||||
if (tlv->plen > IP6_MAX_PREFIX_LENGTH)
|
||||
return PARSE_ERROR;
|
||||
|
||||
if (TLV_OPT_LENGTH(tlv) < BYTES(tlv->plen))
|
||||
return PARSE_ERROR;
|
||||
|
||||
msg->plen = tlv->plen;
|
||||
msg->prefix = get_ip6_px(tlv->addr, tlv->plen);
|
||||
read_ip6_px(&msg->net, tlv->addr, tlv->plen);
|
||||
return PARSE_SUCCESS;
|
||||
|
||||
case BABEL_AE_IP6_LL:
|
||||
|
|
@ -712,18 +714,18 @@ babel_write_seqno_request(struct babel_tlv *hdr, union babel_msg *m,
|
|||
struct babel_tlv_seqno_request *tlv = (void *) hdr;
|
||||
struct babel_msg_seqno_request *msg = &m->seqno_request;
|
||||
|
||||
uint len = sizeof(struct babel_tlv_seqno_request) + BYTES(msg->plen);
|
||||
uint len = sizeof(struct babel_tlv_seqno_request) + NET_SIZE(&msg->net);
|
||||
|
||||
if (len > max_len)
|
||||
return 0;
|
||||
|
||||
TLV_HDR(tlv, BABEL_TLV_SEQNO_REQUEST, len);
|
||||
tlv->ae = BABEL_AE_IP6;
|
||||
tlv->plen = msg->plen;
|
||||
tlv->plen = net6_pxlen(&msg->net);
|
||||
put_u16(&tlv->seqno, msg->seqno);
|
||||
tlv->hop_count = msg->hop_count;
|
||||
put_u64(&tlv->router_id, msg->router_id);
|
||||
put_ip6_px(tlv->addr, msg->prefix, msg->plen);
|
||||
put_ip6_px(tlv->addr, &msg->net);
|
||||
|
||||
return len;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue