nes-proj/os/net/routing/nullrouting/nullrouting.c

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/*
* Copyright (c) 2017, RISE SICS.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*/
/**
* \addtogroup null-routing
* @{
*
* \file
* A routing protocol that does nothing
*
* \author Simon Duquennoy <simon.duquennoy@ri.se>
*/
#include "net/routing/routing.h"
/*---------------------------------------------------------------------------*/
static void
init(void)
{
}
/*---------------------------------------------------------------------------*/
static void
root_set_prefix(uip_ipaddr_t *prefix, uip_ipaddr_t *iid)
{
}
/*---------------------------------------------------------------------------*/
static int
root_start(void)
{
return 0;
}
/*---------------------------------------------------------------------------*/
static int
node_is_root(void)
{
return 0;
}
/*---------------------------------------------------------------------------*/
static int
get_root_ipaddr(uip_ipaddr_t *ipaddr)
{
return 0;
}
/*---------------------------------------------------------------------------*/
static int
get_sr_node_ipaddr(uip_ipaddr_t *addr, const uip_sr_node_t *node)
{
return 0;
}
/*---------------------------------------------------------------------------*/
static void
leave_network(void)
{
}
/*---------------------------------------------------------------------------*/
static int
node_has_joined(void)
{
return 1;
}
/*---------------------------------------------------------------------------*/
static int
node_is_reachable(void)
{
return 1;
}
/*---------------------------------------------------------------------------*/
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static void
global_repair(const char *str)
{
}
/*---------------------------------------------------------------------------*/
static void
local_repair(const char *str)
{
}
/*---------------------------------------------------------------------------*/
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static void
ext_header_remove(void)
{
#if NETSTACK_CONF_WITH_IPV6
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uip_ext_len = 0;
#endif /* NETSTACK_CONF_WITH_IPV6 */
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}
/*---------------------------------------------------------------------------*/
static int
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ext_header_update(void)
{
return 1;
}
/*---------------------------------------------------------------------------*/
static int
ext_header_hbh_update(int uip_ext_opt_offset)
{
return 1;
}
/*---------------------------------------------------------------------------*/
static int
ext_header_srh_update(void)
{
return 0; /* Means SRH not found */
}
/*---------------------------------------------------------------------------*/
static int
ext_header_srh_get_next_hop(uip_ipaddr_t *ipaddr)
{
return 0;
}
/*---------------------------------------------------------------------------*/
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static void
link_callback(const linkaddr_t *addr, int status, int numtx)
{
}
/*---------------------------------------------------------------------------*/
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static void
neighbor_state_changed(uip_ds6_nbr_t *nbr)
{
}
/*---------------------------------------------------------------------------*/
static void
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drop_route(uip_ds6_route_t *route)
{
}
/*---------------------------------------------------------------------------*/
const struct routing_driver nullrouting_driver = {
"nullrouting",
init,
root_set_prefix,
root_start,
node_is_root,
get_root_ipaddr,
get_sr_node_ipaddr,
leave_network,
node_has_joined,
node_is_reachable,
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global_repair,
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local_repair,
ext_header_remove,
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ext_header_update,
ext_header_hbh_update,
ext_header_srh_update,
ext_header_srh_get_next_hop,
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link_callback,
neighbor_state_changed,
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drop_route,
};
/*---------------------------------------------------------------------------*/
/** @}*/