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528 lines
15 KiB
C
528 lines
15 KiB
C
/*
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* Copyright (c) 2001,2002 Florian Schulze.
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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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*
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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 authors nor the names of the 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 AUTHORS 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 AUTHORS 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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* pktif.c - This file is part of lwIPtest
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*
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****************************************************************************
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*
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* This file is derived from an example in lwIP with the following license:
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*
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* Copyright (c) 2001, 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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*/
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#define WIN32_LEAN_AND_MEAN
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#include <stdlib.h>
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#include <stdio.h>
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#include <windows.h>
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#include <packet32.h>
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#include <ntddndis.h>
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#include "lwip/debug.h"
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#include "lwip/opt.h"
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#include "lwip/def.h"
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#include "lwip/mem.h"
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#include "lwip/pbuf.h"
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#include "lwip/stats.h"
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#include "lwip/sys.h"
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#include "lwip/ip.h"
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#include "netif/etharp.h"
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#include "netif/tcpdump.h"
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#undef NETIF_DEBUG
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/* Define those to better describe your network interface. */
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#define IFNAME0 'p'
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#define IFNAME1 'k'
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struct ethernetif {
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struct eth_addr *ethaddr;
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/* Add whatever per-interface state that is needed here. */
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};
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static const struct eth_addr ethbroadcast = {{0xff,0xff,0xff,0xff,0xff,0xff}};
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/* Forward declarations. */
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static void ethernetif_input(struct netif *netif);
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static err_t ethernetif_output(struct netif *netif, struct pbuf *p,
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struct ip_addr *ipaddr);
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static struct netif *pktif_netif;
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LPADAPTER lpAdapter;
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LPPACKET lpPacket;
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char buffer[256000]; // buffer to hold the data coming from the driver
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unsigned char *cur_packet;
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int cur_length;
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struct eth_addr ethaddr;
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/*-----------------------------------------------------------------------------------*/
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int init_adapter(void)
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{
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#define Max_Num_Adapter 10
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char AdapterList[Max_Num_Adapter][1024];
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int i;
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DWORD dwVersion;
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DWORD dwWindowsMajorVersion;
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//unicode strings (winnt)
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WCHAR AdapterName[8192]; // string that contains a list of the network adapters
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WCHAR *temp,*temp1;
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//ascii strings (win95)
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char AdapterNamea[8192]; // string that contains a list of the network adapters
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char *tempa,*temp1a;
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int AdapterNum=0;
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ULONG AdapterLength;
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PPACKET_OID_DATA ppacket_oid_data;
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BOOLEAN result;
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// obtain the name of the adapters installed on this machine
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AdapterLength=4096;
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memset(AdapterList,0,sizeof(AdapterList));
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i=0;
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// the data returned by PacketGetAdapterNames is different in Win95 and in WinNT.
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// We have to check the os on which we are running
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dwVersion=GetVersion();
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dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
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if (!(dwVersion >= 0x80000000 && dwWindowsMajorVersion >= 4))
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{ // Windows NT
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if(PacketGetAdapterNames(AdapterName,&AdapterLength)==FALSE){
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printf("Unable to retrieve the list of the adapters!\n");
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return -1;
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}
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temp=AdapterName;
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temp1=AdapterName;
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while ((*temp!='\0')||(*(temp-1)!='\0'))
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{
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if (*temp=='\0')
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{
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memcpy(AdapterList[i],temp1,(temp-temp1)*2);
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temp1=temp+1;
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i++;
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}
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temp++;
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}
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AdapterNum=i;
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}
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else //windows 95
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{
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if(PacketGetAdapterNames(AdapterNamea,&AdapterLength)==FALSE){
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printf("Unable to retrieve the list of the adapters!\n");
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return -1;
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}
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tempa=AdapterNamea;
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temp1a=AdapterNamea;
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while ((*tempa!='\0')||(*(tempa-1)!='\0'))
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{
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if (*tempa=='\0')
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{
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memcpy(AdapterList[i],temp1a,tempa-temp1a);
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temp1a=tempa+1;
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i++;
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}
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tempa++;
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}
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AdapterNum=i;
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}
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if (AdapterNum<=0)
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return -1;
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ppacket_oid_data=malloc(sizeof(PACKET_OID_DATA)+6);
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lpAdapter=PacketOpenAdapter(AdapterList[0]);
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if (!lpAdapter || (lpAdapter->hFile == INVALID_HANDLE_VALUE))
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return -1;
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ppacket_oid_data->Oid=OID_802_3_PERMANENT_ADDRESS;
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ppacket_oid_data->Length=6;
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if (!PacketRequest(lpAdapter,FALSE,ppacket_oid_data))
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return -1;
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memcpy(ppacket_oid_data->Data,ðaddr,6);
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free(ppacket_oid_data);
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PacketSetBuff(lpAdapter,512000);
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PacketSetReadTimeout(lpAdapter,1);
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PacketSetHwFilter(lpAdapter,NDIS_PACKET_TYPE_ALL_LOCAL);
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if((lpPacket = PacketAllocatePacket())==NULL){
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return (-1);
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}
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PacketInitPacket(lpPacket,(char*)buffer,256000);
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return 0;
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}
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void shutdown_adapter(void)
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{
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struct ethernetif *ethernetif;
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ethernetif = pktif_netif->state;
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PacketFreePacket(lpPacket);
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PacketCloseAdapter(lpAdapter);
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}
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static void open_adapter(struct ethernetif *ethernetif)
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{
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memcpy(ðaddr,ethernetif->ethaddr,6);
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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low_level_init(struct netif *netif)
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{
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struct ethernetif *ethernetif;
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ethernetif = netif->state;
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open_adapter(ethernetif);
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#ifdef NETIF_DEBUG
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DEBUGF(NETIF_DEBUG, ("pktif: eth_addr %02X%02X%02X%02X%02X%02X\n",ethernetif->ethaddr->addr[0],ethernetif->ethaddr->addr[1],ethernetif->ethaddr->addr[2],ethernetif->ethaddr->addr[3],ethernetif->ethaddr->addr[4],ethernetif->ethaddr->addr[5]));
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#endif /* NETIF_DEBUG */
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/* Do whatever else is needed to initialize interface. */
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pktif_netif=netif;
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}
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/*-----------------------------------------------------------------------------------*/
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/*
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* low_level_output():
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*
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* Should do the actual transmission of the packet. The packet is
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* contained in the pbuf that is passed to the function. This pbuf
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* might be chained.
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*
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*/
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/*-----------------------------------------------------------------------------------*/
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static err_t
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low_level_output(struct netif *ethernetif, struct pbuf *p)
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{
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struct pbuf *q;
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unsigned char buffer[1600];
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unsigned char *ptr;
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LPPACKET lpPacket;
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/* initiate transfer(); */
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if (p->tot_len>=1600)
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return ERR_BUF;
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if((lpPacket = PacketAllocatePacket())==NULL)
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return ERR_BUF;
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PacketInitPacket(lpPacket,buffer,p->tot_len);
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ptr=buffer;
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for(q = p; q != NULL; q = q->next) {
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/* Send the data from the pbuf to the interface, one pbuf at a
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time. The size of the data in each pbuf is kept in the ->len
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variable. */
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/* send data from(q->payload, q->len); */
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#ifdef NETIF_DEBUG
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DEBUGF(NETIF_DEBUG, ("netif: send ptr %p q->payload %p q->len %i q->next %p\n", ptr, q->payload, (int)q->len, q->next));
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#endif
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bcopy(q->payload,ptr,q->len);
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ptr+=q->len;
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}
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/* signal that packet should be sent(); */
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if (!PacketSendPacket(lpAdapter,lpPacket,TRUE))
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return ERR_BUF;
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PacketFreePacket(lpPacket);
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#ifdef LINK_STATS
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stats.link.xmit++;
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#endif /* LINK_STATS */
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return ERR_OK;
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}
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/*-----------------------------------------------------------------------------------*/
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/*
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* low_level_input():
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*
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* Should allocate a pbuf and transfer the bytes of the incoming
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* packet from the interface into the pbuf.
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*
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*/
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/*-----------------------------------------------------------------------------------*/
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static struct pbuf *
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low_level_input(struct netif *ethernetif)
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{
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struct pbuf *p, *q;
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int start, length;
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/* Obtain the size of the packet and put it into the "len"
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variable. */
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length = cur_length;
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if (length<=0)
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return NULL;
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/* We allocate a pbuf chain of pbufs from the pool. */
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p = pbuf_alloc(PBUF_LINK, (u16_t)length, PBUF_POOL);
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#ifdef NETIF_DEBUG
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DEBUGF(NETIF_DEBUG, ("netif: recv length %i p->tot_len %i\n", length, (int)p->tot_len));
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#endif
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if(p != NULL) {
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/* We iterate over the pbuf chain until we have read the entire
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packet into the pbuf. */
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start=0;
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for(q = p; q != NULL; q = q->next) {
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/* Read enough bytes to fill this pbuf in the chain. The
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avaliable data in the pbuf is given by the q->len
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variable. */
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/* read data into(q->payload, q->len); */
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#ifdef NETIF_DEBUG
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DEBUGF(NETIF_DEBUG, ("netif: recv start %i length %i q->payload %p q->len %i q->next %p\n", start, length, q->payload, (int)q->len, q->next));
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#endif
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bcopy(&cur_packet[start],q->payload,q->len);
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start+=q->len;
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length-=q->len;
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if (length<=0)
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break;
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}
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/* acknowledge that packet has been read(); */
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cur_length=0;
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#ifdef LINK_STATS
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stats.link.recv++;
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#endif /* LINK_STATS */
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} else {
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/* drop packet(); */
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cur_length=0;
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#ifdef LINK_STATS
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stats.link.memerr++;
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stats.link.drop++;
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#endif /* LINK_STATS */
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}
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return p;
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}
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/*-----------------------------------------------------------------------------------*/
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/*
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* ethernetif_output():
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*
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* This function is called by the TCP/IP stack when an IP packet
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* should be sent. It calls the function called low_level_output() to
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* do the actuall transmission of the packet.
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*
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*/
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/*-----------------------------------------------------------------------------------*/
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static err_t
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ethernetif_output(struct netif *netif, struct pbuf *p,
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struct ip_addr *ipaddr)
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{
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p = etharp_output(netif, ipaddr, p);
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if(p != NULL) {
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return low_level_output(netif, p);
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}
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return ERR_OK;
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}
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/*-----------------------------------------------------------------------------------*/
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/*
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* ethernetif_input():
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*
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* This function should be called when a packet is ready to be read
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* from the interface. It uses the function low_level_input() that
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* should handle the actual reception of bytes from the network
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* interface.
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*
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*/
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/*-----------------------------------------------------------------------------------*/
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static void
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ethernetif_input(struct netif *netif)
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{
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struct ethernetif *ethernetif;
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struct eth_hdr *ethhdr;
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struct pbuf *p;
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ethernetif = netif->state;
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p = low_level_input(netif);
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if(p != NULL) {
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#ifdef LINK_STATS
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stats.link.recv++;
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#endif /* LINK_STATS */
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ethhdr = p->payload;
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switch(htons(ethhdr->type)) {
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case ETHTYPE_IP:
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etharp_ip_input(netif, p);
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pbuf_header(p, -14);
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//if(ip_lookup(p->payload, netif)) {
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netif->input(p, netif);
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//}
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break;
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case ETHTYPE_ARP:
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p = etharp_arp_input(netif, ethernetif->ethaddr, p);
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if(p != NULL) {
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low_level_output(netif, p);
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pbuf_free(p);
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}
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break;
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default:
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pbuf_free(p);
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break;
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}
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}
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}
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/*-----------------------------------------------------------------------------------*/
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static void
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arp_timer(void *arg)
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{
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etharp_tmr();
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sys_timeout(ARP_TMR_INTERVAL, (sys_timeout_handler)arp_timer, NULL);
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}
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/*-----------------------------------------------------------------------------------*/
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/*
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* ethernetif_init():
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*
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* Should be called at the beginning of the program to set up the
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* network interface. It calls the function low_level_init() to do the
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* actual setup of the hardware.
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*
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*/
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/*-----------------------------------------------------------------------------------*/
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void
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ethernetif_init(struct netif *netif)
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{
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struct ethernetif *ethernetif;
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ethernetif = mem_malloc(sizeof(struct ethernetif));
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netif->state = ethernetif;
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netif->name[0] = IFNAME0;
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netif->name[1] = IFNAME1;
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netif->output = ethernetif_output;
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ethernetif->ethaddr = (struct eth_addr *)&(netif->hwaddr[0]);
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low_level_init(netif);
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etharp_init();
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sys_timeout(ARP_TMR_INTERVAL, (sys_timeout_handler)arp_timer, NULL);
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}
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/*-----------------------------------------------------------------------------------*/
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/*
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* pktif_update():
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*
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* Needs to be called periodically to get new packets. This could
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* be done inside a thread.
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*/
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/*-----------------------------------------------------------------------------------*/
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static void ProcessPackets(LPPACKET lpPacket)
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{
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ULONG ulLines, ulBytesReceived;
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char *base;
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char *buf;
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u_int off=0;
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u_int tlen,tlen1;
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struct bpf_hdr *hdr;
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struct ethernetif *ethernetif;
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ethernetif = pktif_netif->state;
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ulBytesReceived = lpPacket->ulBytesReceived;
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buf = lpPacket->Buffer;
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off=0;
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while(off<ulBytesReceived)
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{
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//if(kbhit())return;
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hdr=(struct bpf_hdr *)(buf+off);
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tlen1=hdr->bh_datalen;
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cur_length=tlen1;
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tlen=hdr->bh_caplen;
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off+=hdr->bh_hdrlen;
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ulLines = (tlen + 15) / 16;
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if (ulLines > 5) ulLines=5;
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base =(char*)(buf+off);
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cur_packet=base;
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off=Packet_WORDALIGN(off+tlen);
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ethernetif_input(pktif_netif);
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}
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}
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void update_adapter(void)
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{
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struct ethernetif *ethernetif;
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ethernetif = pktif_netif->state;
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if(PacketReceivePacket(lpAdapter,lpPacket,TRUE)==TRUE)
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ProcessPackets(lpPacket);
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cur_length=0;
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cur_packet=NULL;
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}
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