diff options
Diffstat (limited to 'zebra/redistribute.c')
| -rw-r--r-- | zebra/redistribute.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/zebra/redistribute.c b/zebra/redistribute.c index 552524dbc8..9930285199 100644 --- a/zebra/redistribute.c +++ b/zebra/redistribute.c @@ -558,6 +558,74 @@ zebra_interface_address_delete_update (struct interface *ifp, } } +/* Interface VRF change. May need to delete from clients not interested in + * the new VRF. Note that this function is invoked *prior* to the VRF change. + */ +void +zebra_interface_vrf_update_del (struct interface *ifp, vrf_id_t new_vrf_id) +{ + struct listnode *node, *nnode; + struct zserv *client; + + if (IS_ZEBRA_DEBUG_EVENT) + zlog_debug ("MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/DEL %s VRF Id %u -> %u", + ifp->name, ifp->vrf_id, new_vrf_id); + + for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) + { + /* Skip clients not interested in both VRFs. */ + if (!vrf_bitmap_check (client->ifinfo, ifp->vrf_id) && + !vrf_bitmap_check (client->ifinfo, new_vrf_id)) + continue; + + if (!vrf_bitmap_check (client->ifinfo, new_vrf_id)) + { + /* Need to delete if the client is not interested in the new VRF. */ + zsend_interface_update (ZEBRA_INTERFACE_DOWN, client, ifp); + client->ifdel_cnt++; + zsend_interface_delete (client, ifp); + } + else if (vrf_bitmap_check (client->ifinfo, ifp->vrf_id)) + { + /* Client is interested in both VRFs, inform about the change. */ + zsend_interface_vrf_update (client, ifp, new_vrf_id); + } + } +} + +/* Interface VRF change. This function is invoked *post* VRF change and sends an + * add to clients who are interested in the new VRF but not in the old VRF. + */ +void +zebra_interface_vrf_update_add (struct interface *ifp, vrf_id_t old_vrf_id) +{ + struct listnode *node, *nnode; + struct zserv *client; + + if (IS_ZEBRA_DEBUG_EVENT) + zlog_debug ("MESSAGE: ZEBRA_INTERFACE_VRF_UPDATE/ADD %s VRF Id %u -> %u", + ifp->name, old_vrf_id, ifp->vrf_id); + + for (ALL_LIST_ELEMENTS (zebrad.client_list, node, nnode, client)) + { + /* Skip clients interested in both VRFs - they would've got an Update. */ + if (vrf_bitmap_check (client->ifinfo, ifp->vrf_id) && + vrf_bitmap_check (client->ifinfo, old_vrf_id)) + continue; + + /* Skip clients not interested in the new VRF - they would've + * got a Delete. + */ + if (!vrf_bitmap_check (client->ifinfo, ifp->vrf_id)) + continue; + + /* Need to add if the client is interested in the new VRF. */ + client->ifadd_cnt++; + zsend_interface_add (client, ifp); + zsend_interface_addresses (client, ifp); + } +} + int zebra_add_import_table_entry (struct route_node *rn, struct rib *rib) { |