From 5d5fa072caa51594157b937daf1a9cc95725a3d5 Mon Sep 17 00:00:00 2001 From: paul Date: Thu, 4 May 2006 07:32:57 +0000 Subject: [ospfd] Fix SPF of virtual-links 2006-04-24 Paul Jakma * (general) More Virtual-link fixes, again with much help in testing / debug from Juergen Kammer. Primarily in SPF. * ospf_spf.h: Add guard. ospf_interface.h will include this header. * ospf_interface.h: Modify ospf_vl_lookup definition to take struct ospf as argument, so as to allow for NULL area argument. (struct ospf_vl_data) Remove out_oi, instead add a struct vertex_nexthop, to use as initial nexthop for backbone paths through a vlink. * ospf_interface.c: (ospf_vl_lookup) Modified to allow NULL area to be passed to indicate "any" (first) area. Add extra debug. (ospf_vl_set_params) vl_oi -> nexthop. Add extra debug. (ospf_vl_up_check) Fix debug, inet_ntoa returns a static buffer.. * ospf_route.c: (ospf_intra_add_router) Vlinks dont go through backbone, don't bother checking. * ospf_spf.c: (static struct list vertex_list) Record vertices that will need to be freed. (cmp) Order network before router vertices, as required, wasn't implemented. (vertex_nexthop_free) Mild additional robustness check. (vertex_parent_free) Take void argument, as this function is passed as list deconstructor for vertex parent list. (ospf_vertex_new) More debug. Set deconstructor for parent list. Track allocated vertices on the vertex_list. (ospf_vertex_free) Get rid of the tricky recursive cleanup of vertices. Now frees only the given vertex. (ospf_vertex_add_parent) Fix assert. (ospf_nexthop_calculation) Fix calculation of nexthop for VLink vertices, lookup the vl_data and use its previously recorded nexthop information. (ospf_spf_calculate) Vertices are freed simply by deleting vertex_list nodes and letting ospf_vertex_free as deconstructor work per-node. (ospf_spf_calculate_timer) Trivial optimisation, leave backbone SPF calculation till last to reduce SPF churn on VLink updates. * ospf_vty.c: (ospf_find_vl_data) update call to ospf_vl_lookup (no_ospf_area_vlink_cmd) ditto. (show_ip_ospf_interface_sub) For Vlinks, the peer address is more interesting than the output interface. --- ospfd/ospf_route.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'ospfd/ospf_route.c') diff --git a/ospfd/ospf_route.c b/ospfd/ospf_route.c index 5eedbd82..646b625f 100644 --- a/ospfd/ospf_route.c +++ b/ospfd/ospf_route.c @@ -343,8 +343,9 @@ ospf_intra_add_router (struct route_table *rt, struct vertex *v, if (IS_DEBUG_OSPF_EVENT) zlog_debug ("ospf_intra_add_router: LS ID: %s", inet_ntoa (lsa->header.id)); - - ospf_vl_up_check (area, lsa->header.id, v); + + if (!OSPF_IS_AREA_BACKBONE(area)) + ospf_vl_up_check (area, lsa->header.id, v); if (!CHECK_FLAG (lsa->flags, ROUTER_LSA_SHORTCUT)) area->shortcut_capability = 0; -- cgit v1.2.3