diff options
Diffstat (limited to 'hicn-light/src/hicn/strategies/local_remote.c')
-rw-r--r-- | hicn-light/src/hicn/strategies/local_remote.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/hicn-light/src/hicn/strategies/local_remote.c b/hicn-light/src/hicn/strategies/local_remote.c new file mode 100644 index 000000000..7edf62643 --- /dev/null +++ b/hicn-light/src/hicn/strategies/local_remote.c @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2021 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <hicn/core/nexthops.h> +#include <hicn/core/forwarder.h> + +#include "local_remote.h" + +static int strategy_local_remote_initialize(strategy_entry_t *entry, + const void *forwarder) { + printf("INIT FWD STRATEGY REMOTE LOCAL\n"); + srand((unsigned int)time(NULL)); + entry->forwarder = forwarder; + return 0; +} + +static int strategy_local_remote_finalize(strategy_entry_t *entry) { + /* Nothing to do */ + return 0; +} + +static int strategy_local_remote_add_nexthop(strategy_entry_t *entry, + nexthops_t *nexthops, + off_t offset) { + /* Nothing to do */ + return 0; +} + +static int strategy_local_remote_remove_nexthop(strategy_entry_t *entry, + nexthops_t *nexthops, + off_t offset) { + /* Nothing to do */ + return 0; +} + +static nexthops_t *strategy_local_remote_lookup_nexthops( + strategy_entry_t *entry, nexthops_t *nexthops, const msgbuf_t *msgbuf) { + if (!entry->forwarder) { + // the forwarder does not exists, drop packet + nexthops_disable_all(nexthops); + return nexthops; + } + + unsigned cid = msgbuf_get_connection_id(msgbuf); + connection_table_t *table = forwarder_get_connection_table(entry->forwarder); + if (!table) { + // the connection table does not exists, drop packet. + nexthops_disable_all(nexthops); + return nexthops; + } + + connection_t *in = connection_table_get_by_id(table, cid); + if (!in) { + // the ingress connection does not exists, drop packet. + nexthops_disable_all(nexthops); + return nexthops; + } + + bool in_is_local = connection_is_local(in); + nexthops_enumerate(nexthops, i, nexthop, { + connection_t *out = connection_table_get_by_id(table, nexthop); + if (out) { + if (connection_is_local(out) != in_is_local) { + // this connection satisfies the requirements, send the intetest here. + nexthops_select(nexthops, i); + return nexthops; + } + } + }); + + // no out connection satisfies the requirements, drop packet. + nexthops_disable_all(nexthops); + return nexthops; +} + +static int strategy_local_remote_on_data(strategy_entry_t *entry, + nexthops_t *nexthops, + const nexthops_t *data_nexthops, + const msgbuf_t *msgbuf, + Ticks pitEntryCreation, + Ticks objReception) { + /* Nothing to do */ + return 0; +} + +static int strategy_local_remote_on_timeout( + strategy_entry_t *entry, nexthops_t *nexthops, + const nexthops_t *timeout_nexthops) { + /* Nothing to do */ + return 0; +} + +DECLARE_STRATEGY(local_remote); |