diff options
Diffstat (limited to 'zebra/zebra_rib.c')
| -rw-r--r-- | zebra/zebra_rib.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/zebra/zebra_rib.c b/zebra/zebra_rib.c index 0035eb6e..8da6c84a 100644 --- a/zebra/zebra_rib.c +++ b/zebra/zebra_rib.c @@ -2905,6 +2905,61 @@ rib_sweep_route (void) rib_sweep_table (vrf_table (AFI_IP6, SAFI_UNICAST, 0)); } +/* Delete routes learned from a given client. */ +/* TODO(wsun) May need to split the sweep process into multiple batches, + * so that the process won't take too long if the table is large. */ +static void +rib_sweep_client_table (struct route_table *table, int rib_type) +{ + struct route_node *rn; + struct rib *rib; + struct rib *next; + int ret = 0; + + if (table) + for (rn = route_top (table); rn; rn = route_next (rn)) + for (rib = rn->info; rib; rib = next) + { + next = rib->next; + + if (CHECK_FLAG (rib->status, RIB_ENTRY_REMOVED)) + continue; + + if (rib->type == rib_type) + if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_SELECTED)) + { + /* TODO(wsun) Is this mandatory? What about graceful restart/ + * non-stop forwarding */ + ret = rib_uninstall_kernel (rn, rib); + if (! ret) + rib_delnode (rn, rib); + else + zlog_err ("%s: could not delete routes from kernel!", + __func__); + } + else + { + /* Always delete the node. */ + rib_delnode (rn, rib); + } + } +} + +/* Sweep all routes learned from a given client from RIB tables. */ +void +rib_sweep_client_route (struct zserv *client) +{ + assert(client); + int route_type = client->route_type; + if (route_type != ZEBRA_ROUTE_MAX) + { + zlog_debug ("%s: Removing existing routes from client type %d", + __func__, route_type); + rib_sweep_client_table (vrf_table (AFI_IP, SAFI_UNICAST, 0), route_type); + rib_sweep_client_table (vrf_table (AFI_IP6, SAFI_UNICAST, 0), route_type); + } +} + /* Close RIB and clean up kernel routes. */ static void rib_close_table (struct route_table *table) |