94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/* net_driver_loopback.c - Loopback driver */
|
|
|
|
/*
|
|
* Copyright (c) 2015 Intel Corporation
|
|
*
|
|
* 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 <nanokernel.h>
|
|
#include <toolchain.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#if defined(CONFIG_STDOUT_CONSOLE)
|
|
#include <stdio.h>
|
|
#define PRINT printf
|
|
#else
|
|
#include <misc/printk.h>
|
|
#define PRINT printk
|
|
#endif
|
|
|
|
#include "contiki/ip/uip-debug.h"
|
|
|
|
#include <net/net_core.h>
|
|
#include <net/net_buf.h>
|
|
#include <net/net_ip.h>
|
|
#include <net/net_socket.h>
|
|
|
|
/* The following uIP includes are for testing purposes only. Never
|
|
* ever use them in your application.
|
|
*/
|
|
#include "contiki/ipv6/uip-ds6-route.h" /* to set the route */
|
|
#include "contiki/ipv6/uip-ds6-nbr.h" /* to set the neighbor cache */
|
|
|
|
static int net_driver_loopback_open(void)
|
|
{
|
|
const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
|
|
uint8_t eui64[] = { };
|
|
|
|
net_set_mac(eui64, sizeof(eui64));
|
|
|
|
if (!uip_ds6_addr_add((uip_ipaddr_t *)&in6addr_loopback, 0,
|
|
ADDR_MANUAL))
|
|
return -EINVAL;
|
|
|
|
if (!uip_ds6_nbr_add((uip_ipaddr_t *)&in6addr_loopback,
|
|
&uip_lladdr, 0, NBR_REACHABLE)) {
|
|
NET_DBG("Cannot add neighbor cache\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!uip_ds6_route_add((uip_ipaddr_t *)&in6addr_loopback, 128,
|
|
(uip_ipaddr_t *)&in6addr_loopback)) {
|
|
NET_DBG("Cannot add localhost route\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
NET_DBG("initialized loopback driver\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int net_driver_loopback_send(struct net_buf *buf)
|
|
{
|
|
NET_DBG("received %d bytes\n", buf->len);
|
|
|
|
net_recv(buf);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static struct net_driver net_driver_loopback = {
|
|
.head_reserve = 0,
|
|
.open = net_driver_loopback_open,
|
|
.send = net_driver_loopback_send,
|
|
};
|
|
|
|
int net_driver_loopback_init(void)
|
|
{
|
|
net_register_driver(&net_driver_loopback);
|
|
|
|
return 0;
|
|
}
|