112 lines
4.0 KiB
C
112 lines
4.0 KiB
C
/****************************************************************************
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* include/netinet/arp.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <net/if.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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/* ARP protocol HARDWARE identifiers. Provided as the sa_family member of a
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* struct sockaddr.
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*
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* When sa_family is ARPHRD_ETHER, the 6 byte Ethernet address is provided
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* in the first 6-bytes of the sockaddr sa_data array.
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*/
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#define ARPHRD_ETHER 1 /* Ethernet */
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#define ARPHRD_PPP 512
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#define ARPHRD_LOOPBACK 772 /* Loopback device */
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#define ARPHRD_IEEE80211 801 /* IEEE 802.11 */
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#define ARPHRD_IEEE802154 804 /* IEEE 802.15.4 */
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#define ARPHRD_VOID 0xFFFF /* Void type, nothing is known */
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#define ARPHRD_NONE 0xFFFE /* zero header length */
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/* Three ioctls are available on all PF_INET sockets. Each ioctl takes a
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* pointer 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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{
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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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#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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