From 9c27ef9b9c26db0af507869c2866c4a8463f4ae7 Mon Sep 17 00:00:00 2001 From: Paul Jakma 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_vty.c | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-) (limited to 'ospfd/ospf_vty.c') diff --git a/ospfd/ospf_vty.c b/ospfd/ospf_vty.c index 0b74bdf1..74361bcb 100644 --- a/ospfd/ospf_vty.c +++ b/ospfd/ospf_vty.c @@ -722,7 +722,7 @@ ospf_find_vl_data (struct ospf *ospf, struct ospf_vl_config_data *vl_config) return NULL; } - if ((vl_data = ospf_vl_lookup (area, vl_config->vl_peer)) == NULL) + if ((vl_data = ospf_vl_lookup (ospf, area, vl_config->vl_peer)) == NULL) { vl_data = ospf_vl_data_new (area, vl_config->vl_peer); if (vl_data->vl_oi == NULL) @@ -1074,7 +1074,7 @@ DEFUN (no_ospf_area_vlink, { /* Basic VLink no command */ /* Thats all folks! - BUGS B. strikes again!!!*/ - if ((vl_data = ospf_vl_lookup (area, vl_config.vl_peer))) + if ((vl_data = ospf_vl_lookup (ospf, area, vl_config.vl_peer))) ospf_vl_delete (ospf, vl_data); ospf_area_check_free (ospf, vl_config.area_id); @@ -2736,10 +2736,27 @@ show_ip_ospf_interface_sub (struct vty *vty, struct ospf *ospf, vty_out (vty, " Internet Address %s/%d,", inet_ntoa (oi->address->u.prefix4), oi->address->prefixlen); - if (oi->connected->destination) - vty_out (vty, " %s %s,", - ((ifp->flags & IFF_POINTOPOINT) ? "Peer" : "Broadcast"), - inet_ntoa (oi->connected->destination->u.prefix4)); + if (oi->connected->destination || oi->type == OSPF_IFTYPE_VIRTUALLINK) + { + struct in_addr *dest; + const char *dstr; + + if ((ifp->flags & IFF_POINTOPOINT) + || oi->type == OSPF_IFTYPE_VIRTUALLINK) + dstr = "Peer"; + else + dstr = "Broadcast"; + + /* For Vlinks, showing the peer address is probably more + * informative than the local interface that is being used + */ + if (oi->type == OSPF_IFTYPE_VIRTUALLINK) + dest = &oi->vl_data->peer_addr; + else + dest = &oi->connected->destination->u.prefix4; + + vty_out (vty, " %s %s,", dstr, inet_ntoa (*dest)); + } vty_out (vty, " Area %s%s", ospf_area_desc_string (oi->area), VTY_NEWLINE); -- cgit v1.2.1