diff options
Diffstat (limited to 'nuttx/net/net_addroute.c')
-rw-r--r-- | nuttx/net/net_addroute.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/nuttx/net/net_addroute.c b/nuttx/net/net_addroute.c new file mode 100644 index 000000000..fd4e7de9a --- /dev/null +++ b/nuttx/net/net_addroute.c @@ -0,0 +1,120 @@ +/**************************************************************************** + * net/net_addroute.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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 NuttX 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 COPYRIGHT HOLDERS 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 + * COPYRIGHT OWNER 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <errno.h> + +#include <nuttx/net/route.h> + +#include "net_internal.h" + +#if defined(CONFIG_NET) && defined(CONFIG_NET_ROUTE) + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: net_available + * + * Description: + * Return 1 if the route is available + * + * Parameters: + * route - The next route to examine + * arg - The new route entry (cast to void*) + * + * Returned Value: + * OK on success; Negated errno on failure. + * + ****************************************************************************/ + +static int net_available(FAR struct net_route_s *route, FAR void *arg) +{ + if (!route->inuse) + { + memcpy(route, arg, sizeof(struct net_route_s)); + return 1; + } + + return 0; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: net_addroute + * + * Description: + * Add a new route to the routing table + * + * Parameters: + * + * Returned Value: + * OK on success; Negated errno on failure. + * + ****************************************************************************/ + +int net_addroute(uip_ipaddr_t target, uip_ipaddr_t netmask, + uip_ipaddr_t gateway, int devno) +{ + struct net_route_s route; + + /* Format the new route table entry */ + + route.inuse = true; + route.minor = devno; + uip_ipaddr_copy(route.target, target); + uip_ipaddr_copy(route.netmask, netmask); + uip_ipaddr_copy(route.gateway, gateway); + + /* Then add the new entry to the table */ + + return net_foreachroute(net_available, &route) ? OK : -EAGAIN; +} + +#endif /* CONFIG_NET && CONFIG_NET_SOCKOPTS && !CONFIG_DISABLE_CLOCK */ |