115 lines
4.5 KiB
C
115 lines
4.5 KiB
C
/****************************************************************************
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* include/netinet/arp.h
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*
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* Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NETINET_ARP_H
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#define __INCLUDE_NETINET_ARP_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <nuttx/fs/ioctl.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Three ioctls are available on all PF_INET sockets, but only if the NuttX
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* configuration CONFIG_NET_ARPIOCTLS is defined. Each ioctl takes a pointer
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* to a 'struct arpreq' as its parameter.
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*/
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#define SIOCSARP _ARPIOC(1) /* Set a ARP mapping */
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#define SIOCDARP _ARPIOC(2) /* Delete an ARP mapping */
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#define SIOCGARP _ARPIOC(3) /* Get an ARP mapping */
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/* Definitions for bits in field arp_flags of struct arpreq. If the
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* ATF_NETMASK flag is set, then arp_netmask should be valid. This should
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* be set to 0xffffffff, or 0 to remove an existing arp entry.
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*/
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#define ATF_COM (1 << 0) /* Lookup complete */
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#define ATF_PERM (1 << 1) /* Permanent entry */
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#define ATF_PUBL (1 << 2) /* Publish entry */
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#define ATF_USETRAILERS (1 << 3) /* Trailers requested (obsolete) */
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#define ATF_NETMASK (1 << 4) /* Use a netmask */
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#define ATF_DONTPUB (1 << 5) /* Don't answer */
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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/* All ARP ioctls take a pointer to a struct arpreq as their parameter: */
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struct arpreq
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{
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struct sockaddr arp_pa; /* Protocol address */
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struct sockaddr arp_ha; /* Hardware address */
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struct sockaddr arp_netmask; /* Netmask of protocol address */
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uint8_t arp_flags; /* Flags */
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uint8_t arp_dev[IFNAMSIZ+1]; /* Device name (zero terminated)*/
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/* If CONFIG_NET_ARPIOCTLS is defined then the semi-standard ioctl commands
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* described above are supported. If not, you can call the uIP ARP interfaces
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* directly in a very non-standard way. See include/nuttx/net/arp.h for
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* prototypes.
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*/
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_NETINET_ARP_H */
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