incubator-nuttx/net/socket/net_sockif.c

119 lines
3.7 KiB
C

/****************************************************************************
* net/socket/net_sockif.c
*
* Copyright (C) 2017 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 <sys/types.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/net/net.h>
#include "inet/inet.h"
#include "local/local.h"
#include "pkt/pkt.h"
#include "ieee802154/ieee802154.h"
#include "socket/socket.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: net_sockif
*
* Description:
* Return the socket interface associated with this address family.
*
* Input Parameters:
* family - Socket address family
* type - Socket type
* protocol - Socket protocol
*
* Returned Value:
* On success, a non-NULL instance of struct sock_intf_s is returned. NULL
* is returned only if the address family is not supported.
*
****************************************************************************/
FAR const struct sock_intf_s *
net_sockif(sa_family_t family, int type, int protocol)
{
FAR const struct sock_intf_s *sockif = NULL;
/* Get the socket interface */
switch (family)
{
#ifdef HAVE_INET_SOCKETS
#ifdef HAVE_PFINET_SOCKETS
case PF_INET:
#endif
#ifdef HAVE_PFINET6_SOCKETS
case PF_INET6:
#endif
sockif = inet_sockif(family, type, protocol);
break;
#endif
#ifdef CONFIG_NET_LOCAL
case PF_LOCAL:
sockif = &g_local_sockif;
break;
#endif
#ifdef CONFIG_NET_PKT
case PF_PACKET:
sockif = &g_pkt_sockif;
break;
#endif
#ifdef CONFIG_NET_IEEE802154
case PF_IEEE802154:
sockif = &g_ieee802154_sockif;
break;
#endif
default:
nerr("ERROR: Address family unsupported: %d\n", family);
}
return sockif;
}