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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [ethernet/] [FreeRTOS-uIP/] [uip-fw.h] - Blame information for rev 607

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1 606 jeremybenn
/**
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 * \addtogroup uipfw
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 * @{
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 */
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/**
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 * \file
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 * uIP packet forwarding header file.
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 * \author Adam Dunkels <adam@sics.se>
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 */
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/*
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 * Copyright (c) 2004, Swedish Institute of Computer Science.
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 * All rights reserved.
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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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 * 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 the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the Institute nor the names of its contributors
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 *    may be 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 INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 * This file is part of the uIP TCP/IP stack
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 *
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 * Author: Adam Dunkels <adam@sics.se>
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 *
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 * $Id: uip-fw.h 2 2011-07-17 20:13:17Z filepang@gmail.com $
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 */
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#ifndef __UIP_FW_H__
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#define __UIP_FW_H__
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#include "uip.h"
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/**
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 * Representation of a uIP network interface.
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 */
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struct uip_fw_netif {
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  struct uip_fw_netif *next;  /**< Pointer to the next interface when
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                                 linked in a list. */
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  u16_t ipaddr[2];            /**< The IP address of this interface. */
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  u16_t netmask[2];           /**< The netmask of the interface. */
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  u8_t (* output)(void);
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                              /**< A pointer to the function that
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                                 sends a packet. */
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};
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/**
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 * Intantiating macro for a uIP network interface.
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 *
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 * Example:
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 \code
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 struct uip_fw_netif slipnetif =
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   {UIP_FW_NETIF(192,168,76,1, 255,255,255,0, slip_output)};
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 \endcode
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 * \param ip1,ip2,ip3,ip4 The IP address of the network interface.
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 *
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 * \param nm1,nm2,nm3,nm4 The netmask of the network interface.
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 *
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 * \param outputfunc A pointer to the output function of the network interface.
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 *
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 * \hideinitializer
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 */
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#define UIP_FW_NETIF(ip1,ip2,ip3,ip4, nm1,nm2,nm3,nm4, outputfunc) \
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        NULL, \
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        {HTONS((ip1 << 8) | ip2), HTONS((ip3 << 8) | ip4)}, \
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        {HTONS((nm1 << 8) | nm2), HTONS((nm3 << 8) | nm4)}, \
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        outputfunc
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/**
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 * Set the IP address of a network interface.
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 *
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 * \param netif A pointer to the uip_fw_netif structure for the network interface.
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 *
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 * \param addr A pointer to an IP address.
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 *
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 * \hideinitializer
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 */
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#define uip_fw_setipaddr(netif, addr) \
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        do { (netif)->ipaddr[0] = ((u16_t *)(addr))[0]; \
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             (netif)->ipaddr[1] = ((u16_t *)(addr))[1]; } while(0)
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/**
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 * Set the netmask of a network interface.
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 *
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 * \param netif A pointer to the uip_fw_netif structure for the network interface.
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 *
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 * \param addr A pointer to an IP address representing the netmask.
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 *
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 * \hideinitializer
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 */
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#define uip_fw_setnetmask(netif, addr) \
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        do { (netif)->netmask[0] = ((u16_t *)(addr))[0]; \
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             (netif)->netmask[1] = ((u16_t *)(addr))[1]; } while(0)
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void uip_fw_init(void);
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u8_t uip_fw_forward(void);
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u8_t uip_fw_output(void);
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void uip_fw_register(struct uip_fw_netif *netif);
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void uip_fw_default(struct uip_fw_netif *netif);
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void uip_fw_periodic(void);
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/**
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 * A non-error message that indicates that a packet should be
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 * processed locally.
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 *
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 * \hideinitializer
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 */
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#define UIP_FW_LOCAL     0
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/**
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 * A non-error message that indicates that something went OK.
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 *
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 * \hideinitializer
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 */
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#define UIP_FW_OK        0
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/**
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 * A non-error message that indicates that a packet was forwarded.
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 *
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 * \hideinitializer
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 */
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#define UIP_FW_FORWARDED 1
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/**
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 * A non-error message that indicates that a zero-length packet
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 * transmission was attempted, and that no packet was sent.
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 *
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 * \hideinitializer
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 */
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#define UIP_FW_ZEROLEN   2
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/**
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 * An error message that indicates that a packet that was too large
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 * for the outbound network interface was detected.
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 *
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 * \hideinitializer
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 */
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#define UIP_FW_TOOLARGE  3
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/**
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 * An error message that indicates that no suitable interface could be
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 * found for an outbound packet.
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 *
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 * \hideinitializer
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 */
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#define UIP_FW_NOROUTE   4
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/**
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 * An error message that indicates that a packet that should be
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 * forwarded or output was dropped.
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 *
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 * \hideinitializer
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 */
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#define UIP_FW_DROPPED   5
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#endif /* __UIP_FW_H__ */
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/** @} */

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