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/*
* Copyright (c) 2017-2019 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/transport/core/hicn_forwarder_interface.h>
#define ADDR_INET 1
#define ADDR_INET6 2
#define ADD_ROUTE 3
#define REQUEST_LIGHT 100
union AddressLight {
uint32_t ipv4;
struct in6_addr ipv6;
};
typedef struct {
uint8_t message_type;
uint8_t command_id;
uint16_t length;
uint32_t seq_num;
char symbolic_or_connid[16];
union AddressLight address;
uint16_t cost;
uint8_t address_type;
uint8_t len;
} RouteToSelfCommand;
namespace transport {
namespace core {
HicnForwarderInterface::HicnForwarderInterface(SocketConnector &connector)
: ForwarderInterface<HicnForwarderInterface, SocketConnector>(connector) {}
HicnForwarderInterface::~HicnForwarderInterface() {}
void HicnForwarderInterface::connect(bool is_consumer) { connector_.connect(); }
void HicnForwarderInterface::registerRoute(Prefix &prefix) {
auto addr = prefix.toSockaddr();
const char *identifier = {"SELF_ROUTE"};
// allocate command payload
RouteToSelfCommand *route_to_self = new RouteToSelfCommand();
// check and set IP address
if (addr->sa_family == AF_INET) {
route_to_self->address_type = ADDR_INET;
route_to_self->address.ipv4 = ((Sockaddr4 *)addr.get())->sin_addr.s_addr;
} else if (addr->sa_family == AF_INET6) {
route_to_self->address_type = ADDR_INET6;
route_to_self->address.ipv6 = ((Sockaddr6 *)addr.get())->sin6_addr;
}
// Fill remaining payload fields
strcpy(route_to_self->symbolic_or_connid, identifier);
route_to_self->cost = 1;
route_to_self->len = prefix.getPrefixLength();
// Allocate and fill the header
route_to_self->command_id = ADD_ROUTE;
route_to_self->message_type = REQUEST_LIGHT;
route_to_self->length = 1;
// route_to_self->seq_num not needed for now
send((uint8_t *)route_to_self, sizeof(RouteToSelfCommand),
[route_to_self]() { delete route_to_self; });
}
} // namespace core
} // namespace transport
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