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author | Gregory Nutt <gnutt@nuttx.org> | 2013-10-01 18:55:20 -0600 |
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committer | Gregory Nutt <gnutt@nuttx.org> | 2013-10-01 18:55:20 -0600 |
commit | b4e9e42b45494e19fd131ea02e2c01745de855a5 (patch) | |
tree | 5f910c9c9d04e9e935540dd3a28c9bef45ec813f /nuttx/net/net_foreachroute.c | |
parent | c862629efea1eda999029d6a70ad588f20ffeb9f (diff) | |
download | px4-nuttx-b4e9e42b45494e19fd131ea02e2c01745de855a5.tar.gz px4-nuttx-b4e9e42b45494e19fd131ea02e2c01745de855a5.tar.bz2 px4-nuttx-b4e9e42b45494e19fd131ea02e2c01745de855a5.zip |
Partial implementation of a simple network routing table.
Diffstat (limited to 'nuttx/net/net_foreachroute.c')
-rw-r--r-- | nuttx/net/net_foreachroute.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/nuttx/net/net_foreachroute.c b/nuttx/net/net_foreachroute.c new file mode 100644 index 000000000..4c82a688b --- /dev/null +++ b/nuttx/net/net_foreachroute.c @@ -0,0 +1,97 @@ +/**************************************************************************** + * net/net_foreachroute.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 + ****************************************************************************/ + +/* This is the routing table */ + +struct net_route_s g_routes[CONFIG_NET_MAXROUTES]; + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: net_foreachroute + * + * Description: + * Traverse the route table + * + * Parameters: + * + * Returned Value: + * 0 if in use; 1 if avaialble and the new entry was added + * + ****************************************************************************/ + +int net_foreachroute(route_handler_t handler, FAR void *arg) +{ + uip_lock_t save; + int ret = 0; + int i; + + /* Prevent concurrent access to the routing table */ + + save = uip_lock(); + + for (i = 0; i < CONFIG_NET_MAXROUTES && ret == 0; i++) + { + ret = handler(&g_route[i], arg); + } + + /* Unlock uIP */ + + uip_unlock(save); + return ret; +} + +#endif /* CONFIG_NET && CONFIG_NET_SOCKOPTS && !CONFIG_DISABLE_CLOCK */ |