mirror of
https://github.com/ep00ch/lwip-contrib-mac.git
synced 2024-10-12 08:23:42 +00:00
Changed pktif.c/pktdrv.c implementation to remove global variables -> more than one adapter can be used (needed to test DHCP on multiple adapters); added DHCP support; initialize loopif before ethernetif (little bit faster since netif_list starts with ethernetif)
This commit is contained in:
parent
cc72279627
commit
d0fee92fe2
@ -218,6 +218,18 @@
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</FileConfiguration>
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</File>
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</Filter>
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<Filter
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Name="Header Files"
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>
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<File
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RelativePath="..\pktdrv.h"
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>
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</File>
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<File
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RelativePath="..\pktif.h"
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>
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</File>
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</Filter>
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</Files>
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<Globals>
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</Globals>
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@ -62,6 +62,8 @@
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*
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*/
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#include "pktdrv.h"
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#define WIN32_LEAN_AND_MEAN
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/* get the windows definitions of the following 4 functions out of the way */
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#include <stdlib.h>
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@ -78,24 +80,26 @@
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#define PACKET_ADAPTER_BUFSIZE 512000
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#define PACKET_INPUT_BUFSIZE 256000
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extern void process_input(void);
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/* global variables for only one adapter */
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struct packet_adapter {
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input_fn input;
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void *input_fn_arg;
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LPADAPTER lpAdapter;
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LPPACKET lpPacket;
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char buffer[PACKET_INPUT_BUFSIZE]; /* 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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/* buffer to hold the data coming from the driver */
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char buffer[PACKET_INPUT_BUFSIZE];
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};
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/**
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* Open a network adapter and set it up for packet input
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*
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* @param adapter_num the index of the adapter to use
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* @param mac_addr the MAC address of the adapter is stored here (if != NULL)
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* @return 0 on success, -1 on failure
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* @param input a function to call to receive a packet
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* @param arg argument to pass to input
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* @return an adapter handle on success, NULL on failure
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*/
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int
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init_adapter(int adapter_num, char* mac_addr)
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void*
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init_adapter(int adapter_num, char *mac_addr, input_fn input, void *arg)
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{
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void *AdapterList[MAX_NUM_ADAPTERS];
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int i;
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@ -104,8 +108,13 @@ init_adapter(int adapter_num, char* mac_addr)
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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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struct packet_adapter *pa = malloc(sizeof(struct packet_adapter));
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unsigned char ethaddr[ETHARP_HWADDR_LEN];
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memset(pa, 0, sizeof(struct packet_adapter));
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pa->input = input;
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pa->input_fn_arg = arg;
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memset(AdapterList, 0, sizeof(AdapterList));
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memset(AdapterName, 0, sizeof(AdapterName));
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@ -114,7 +123,8 @@ init_adapter(int adapter_num, char* mac_addr)
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AdapterLength = ADAPTER_NAME_LEN;
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if (PacketGetAdapterNames((char*)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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free(pa);
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return NULL;
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}
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/* get the start of each adapter name in the list and put it into
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@ -137,86 +147,96 @@ init_adapter(int adapter_num, char* mac_addr)
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/* print all adapter names */
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AdapterNum = i;
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if (AdapterNum <= 0) {
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return -1; /* no adapters found */
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free(pa);
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return NULL; /* no adapters found */
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}
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for (i = 0; i < AdapterNum; i++) {
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printf("%2i: %s\n", i, AdapterList[i]);
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}
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/* invalid adapter index -> check this after printing the adapters */
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if (adapter_num < 0) {
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return -1;
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free(pa);
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return NULL;
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}
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/* adapter index out of range */
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if (adapter_num >= AdapterNum) {
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return -1;
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free(pa);
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return NULL;
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}
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/* set up the selected adapter */
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ppacket_oid_data = malloc(sizeof(PACKET_OID_DATA) + ETHARP_HWADDR_LEN);
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lpAdapter = PacketOpenAdapter(AdapterList[adapter_num]);
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if (!lpAdapter || (lpAdapter->hFile == INVALID_HANDLE_VALUE)) {
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lpAdapter = NULL;
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return -1;
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pa->lpAdapter = PacketOpenAdapter(AdapterList[adapter_num]);
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if (!pa->lpAdapter || (pa->lpAdapter->hFile == INVALID_HANDLE_VALUE)) {
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free(pa);
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return NULL;
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}
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/* get the MAC address of the selected adapter */
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ppacket_oid_data->Oid = OID_802_3_PERMANENT_ADDRESS;
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ppacket_oid_data->Length = ETHARP_HWADDR_LEN;
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if (!PacketRequest(lpAdapter, FALSE, ppacket_oid_data)) {
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lpAdapter = NULL;
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return -1;
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if (!PacketRequest(pa->lpAdapter, FALSE, ppacket_oid_data)) {
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free(pa);
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return NULL;
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}
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/* copy the MAC address */
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memcpy(ðaddr, ppacket_oid_data->Data, ETHARP_HWADDR_LEN);
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free(ppacket_oid_data);
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if (mac_addr != NULL) {
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/* copy the MAC address to the user supplied buffer, also */
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memcpy(mac_addr, ethaddr, ETHARP_HWADDR_LEN);
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memcpy(mac_addr, ðaddr, ETHARP_HWADDR_LEN);
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}
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printf("MAC: %02X:%02X:%02X:%02X:%02X:%02X\n", ethaddr[0], ethaddr[1], ethaddr[2], ethaddr[3], ethaddr[4], ethaddr[5]);
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printf("MAC: %02X:%02X:%02X:%02X:%02X:%02X\n", ethaddr[0], ethaddr[1], ethaddr[2],
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ethaddr[3], ethaddr[4], ethaddr[5]);
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/* some more adapter settings */
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PacketSetBuff(lpAdapter, PACKET_ADAPTER_BUFSIZE);
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PacketSetReadTimeout(lpAdapter, 1);
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PacketSetHwFilter(lpAdapter, NDIS_PACKET_TYPE_ALL_LOCAL | NDIS_PACKET_TYPE_PROMISCUOUS);
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PacketSetBuff(pa->lpAdapter, PACKET_ADAPTER_BUFSIZE);
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PacketSetReadTimeout(pa->lpAdapter, 1);
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PacketSetHwFilter(pa->lpAdapter, NDIS_PACKET_TYPE_ALL_LOCAL | NDIS_PACKET_TYPE_PROMISCUOUS);
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/* set up packet descriptor (the application input buffer) */
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if ((lpPacket = PacketAllocatePacket()) == NULL) {
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lpAdapter = NULL;
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return -1;
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if ((pa->lpPacket = PacketAllocatePacket()) == NULL) {
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free(pa);
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return NULL;
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}
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PacketInitPacket(lpPacket,(char*)buffer, sizeof(buffer));
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PacketInitPacket(pa->lpPacket,(char*)pa->buffer, sizeof(pa->buffer));
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return 0;
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return pa;
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}
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/**
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* Close the adapter (no more packets can be sent or received
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* Close the adapter (no more packets can be sent or received)
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*
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* @param adapter adapter handle received by a call to init_adapter, invalid on return
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*/
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void
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shutdown_adapter(void)
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shutdown_adapter(void *adapter)
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{
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if (lpAdapter != NULL) {
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PacketFreePacket(lpPacket);
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PacketCloseAdapter(lpAdapter);
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struct packet_adapter *pa = (struct packet_adapter*)adapter;
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if (pa != NULL) {
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PacketFreePacket(pa->lpPacket);
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PacketCloseAdapter(pa->lpAdapter);
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free(pa);
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}
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}
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/**
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* Send a packet
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*
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* @param adapter adapter handle received by a call to init_adapter
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* @param buffer complete packet to send (including ETH header; without CRC)
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* @param len length of the packet (including ETH header; without CRC)
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*/
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int
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packet_send(void *buffer, int len)
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packet_send(void *adapter, void *buffer, int len)
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{
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struct packet_adapter *pa = (struct packet_adapter*)adapter;
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LPPACKET lpPacket;
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if (lpAdapter == NULL) {
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if (pa == NULL) {
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return -1;
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}
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if ((lpPacket = PacketAllocatePacket()) == NULL) {
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return -1;
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}
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PacketInitPacket(lpPacket, buffer, len);
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if (!PacketSendPacket(lpAdapter, lpPacket, TRUE)) {
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if (!PacketSendPacket(pa->lpAdapter, lpPacket, TRUE)) {
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return -1;
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}
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PacketFreePacket(lpPacket);
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@ -228,16 +248,25 @@ packet_send(void *buffer, int len)
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* Process a packet buffer (which can hold multiple packets) and feed
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* every packet to process_input().
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*
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* @param lpPacket the packet buffer to process */
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* @param adapter adapter handle received by a call to init_adapter
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* @param lpPacket the packet buffer to process
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*/
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static void
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ProcessPackets(LPPACKET lpPacket)
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ProcessPackets(void *adapter, LPPACKET lpPacket)
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{
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struct packet_adapter *pa = (struct packet_adapter*)adapter;
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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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void *cur_packet;
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int cur_length;
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if (pa == NULL) {
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return;
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}
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ulBytesReceived = lpPacket->ulBytesReceived;
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@ -261,18 +290,22 @@ ProcessPackets(LPPACKET lpPacket)
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cur_packet = base;
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off = Packet_WORDALIGN(off + tlen);
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process_input();
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pa->input(pa->input_fn_arg, cur_packet, cur_length);
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}
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}
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/**
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* Check for newly received packets. Called in the main loop: 'interrupt' mode is not
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* really supported :(
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*
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* @param adapter adapter handle received by a call to init_adapter
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*/
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void
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update_adapter(void)
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update_adapter(void *adapter)
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{
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if ((lpAdapter != NULL) && (PacketReceivePacket(lpAdapter, lpPacket, TRUE))) {
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ProcessPackets(lpPacket);
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struct packet_adapter *pa = (struct packet_adapter*)adapter;
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if ((pa != NULL) && (PacketReceivePacket(pa->lpAdapter, pa->lpPacket, TRUE))) {
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ProcessPackets(adapter, pa->lpPacket);
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}
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}
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19
ports/win32/pktdrv.h
Normal file
19
ports/win32/pktdrv.h
Normal file
@ -0,0 +1,19 @@
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#ifndef __PKTDRV_H__
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#define __PKTDRV_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef void (*input_fn)(void *arg, void *packet, int len);
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void *init_adapter(int adapter_num, char *mac_addr, input_fn input, void *arg);
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void shutdown_adapter(void *adapter);
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int packet_send(void *adapter, void *buffer, int len);
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void update_adapter(void *adapter);
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#ifdef __cplusplus
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}
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#endif
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#endif
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@ -62,6 +62,8 @@
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*
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*/
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#include "pktif.h"
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/* get the windows definitions of the following 4 functions out of the way */
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#include <stdlib.h>
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#include <stdio.h>
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@ -78,6 +80,7 @@
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#include "lwip/snmp.h"
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#include "netif/etharp.h"
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#include "pktdrv.h"
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/* include the port-dependent configuration */
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#include "lwipcfg_msvc.h"
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@ -94,19 +97,13 @@
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#define PACKET_LIB_ADAPTER_NR 0
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#endif
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static struct eth_addr broadcastaddr = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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const static struct eth_addr broadcastaddr = {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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void ethernetif_process_input(void *arg, void *packet, int len);
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static struct netif *pktif_netif;
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extern unsigned char ethaddr[ETHARP_HWADDR_LEN];
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extern unsigned char *cur_packet;
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extern int cur_length;
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extern int init_adapter(int adapter_num, char* mac_addr);
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extern int packet_send(void *buffer, int len);
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/*-----------------------------------------------------------------------------------*/
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static void
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low_level_init(struct netif *netif)
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@ -116,7 +113,8 @@ low_level_init(struct netif *netif)
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LWIP_DEBUGF(NETIF_DEBUG, ("pktif: eth_addr %02X%02X%02X%02X%02X%02X\n",netif->hwaddr[0],netif->hwaddr[1],netif->hwaddr[2],netif->hwaddr[3],netif->hwaddr[4],netif->hwaddr[5]));
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/* Do whatever else is needed to initialize interface. */
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if (init_adapter(PACKET_LIB_ADAPTER_NR, mac_addr) != 0) {
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if ((netif->state = init_adapter(PACKET_LIB_ADAPTER_NR, mac_addr,
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ethernetif_process_input, netif)) == NULL) {
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printf("ERROR initializing network adapter %d!\n", PACKET_LIB_ADAPTER_NR);
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return;
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}
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@ -139,7 +137,7 @@ low_level_init(struct netif *netif)
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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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low_level_output(struct netif *netif, 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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@ -161,7 +159,7 @@ low_level_output(struct netif *ethernetif, struct pbuf *p)
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}
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/* signal that packet should be sent(); */
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if (packet_send(buffer, p->tot_len) < 0) {
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if (packet_send(netif->state, buffer, p->tot_len) < 0) {
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return ERR_BUF;
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}
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@ -178,26 +176,24 @@ low_level_output(struct netif *ethernetif, struct pbuf *p)
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*/
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/*-----------------------------------------------------------------------------------*/
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static struct pbuf *
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low_level_input(struct netif *netif)
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low_level_input(struct netif *netif, void *packet, int packet_len)
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{
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struct pbuf *p, *q;
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int start, length;
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struct eth_hdr *ethhdr;
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/* Obtain the size of the packet and put it into the "len" variable. */
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length = cur_length;
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length = packet_len;
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if (length <= 0) {
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return NULL;
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}
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ethhdr = (struct eth_hdr*)cur_packet;
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ethhdr = (struct eth_hdr*)packet;
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/* MAC filter: only let my MAC or non-unicast through */
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if (((memcmp(ðhdr->dest, &netif->hwaddr, ETHARP_HWADDR_LEN)) &&
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((ethhdr->dest.addr[0] & 0x01) == 0)) ||
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/* and don't let feedback packets through (limitation in winpcap?) */
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!memcmp(ðhdr->src, netif->hwaddr, ETHARP_HWADDR_LEN)) {
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/* acknowledge that packet has been read(); */
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cur_length=0;
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return NULL;
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}
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@ -215,19 +211,16 @@ low_level_input(struct netif *netif)
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variable. */
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/* read data into(q->payload, q->len); */
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LWIP_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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memcpy(q->payload, &cur_packet[start], q->len);
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memcpy(q->payload, &((char*)packet)[start], 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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}
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/* acknowledge that packet has been read(); */
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cur_length = 0;
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LINK_STATS_INC(link.recv);
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} else {
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/* drop packet(); */
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cur_length = 0;
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LINK_STATS_INC(link.memerr);
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LINK_STATS_INC(link.drop);
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}
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@ -247,16 +240,13 @@ low_level_input(struct netif *netif)
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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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ethernetif_input(struct netif *netif, void *packet, int packet_len)
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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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/* move received packet into a new pbuf */
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p = low_level_input(netif);
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p = low_level_input(netif, packet, packet_len);
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/* no packet could be read, silently ignore this */
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if (p == NULL) {
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return;
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@ -315,6 +305,19 @@ ethernetif_init(struct netif *netif)
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return ERR_OK;
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}
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void
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ethernetif_shutdown(struct netif *netif)
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{
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shutdown_adapter(netif->state);
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}
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void
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ethernetif_poll(struct netif *netif)
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{
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update_adapter(netif->state);
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}
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/*-----------------------------------------------------------------------------------*/
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/*
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* pktif_update():
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@ -323,7 +326,9 @@ ethernetif_init(struct netif *netif)
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* be done inside a thread.
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*/
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/*-----------------------------------------------------------------------------------*/
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void process_input(void)
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void
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ethernetif_process_input(void *arg, void *packet, int packet_len)
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{
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ethernetif_input(pktif_netif);
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struct netif *netif = (struct netif*)arg;
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ethernetif_input(netif, packet, packet_len);
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}
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|
10
ports/win32/pktif.h
Normal file
10
ports/win32/pktif.h
Normal file
@ -0,0 +1,10 @@
|
||||
#ifndef __PKTIF_H__
|
||||
#define __PKTIF_H__
|
||||
|
||||
#include "lwip/err.h"
|
||||
|
||||
err_t ethernetif_init(struct netif *netif);
|
||||
void ethernetif_shutdown(struct netif *netif);
|
||||
void ethernetif_poll(struct netif *netif);
|
||||
|
||||
#endif
|
@ -49,6 +49,7 @@
|
||||
#include "lwip/tcp.h"
|
||||
#include "lwip/udp.h"
|
||||
#include "lwip/dns.h"
|
||||
#include "lwip/dhcp.h"
|
||||
|
||||
/* lwIP netif includes */
|
||||
#include "netif/loopif.h"
|
||||
@ -69,13 +70,11 @@
|
||||
#include "lwip/autoip.h"
|
||||
#endif /* NO_SYS */
|
||||
|
||||
#include "pktif.h"
|
||||
|
||||
/* include the port-dependent configuration */
|
||||
#include "lwipcfg_msvc.h"
|
||||
|
||||
/* some forward function definitions... */
|
||||
err_t ethernetif_init(struct netif *netif);
|
||||
void shutdown_adapter(void);
|
||||
void update_adapter(void);
|
||||
|
||||
#if NO_SYS
|
||||
/* port-defined functions used for timer execution */
|
||||
@ -169,25 +168,7 @@ msvc_netif_init()
|
||||
struct ip_addr ipaddr, netmask, gw;
|
||||
#if LWIP_HAVE_LOOPIF
|
||||
struct ip_addr loop_ipaddr, loop_netmask, loop_gw;
|
||||
#endif /* LWIP_HAVE_LOOPIF */
|
||||
|
||||
LWIP_PORT_INIT_GW(&gw);
|
||||
LWIP_PORT_INIT_IPADDR(&ipaddr);
|
||||
LWIP_PORT_INIT_NETMASK(&netmask);
|
||||
printf("Starting lwIP, local interface IP is %s\n", inet_ntoa(*(struct in_addr*)&ipaddr));
|
||||
|
||||
#if NO_SYS
|
||||
#if LWIP_ARP
|
||||
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gw, NULL, ethernetif_init, ethernet_input));
|
||||
#else /* LWIP_ARP */
|
||||
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gw, NULL, ethernetif_init, ip_input));
|
||||
#endif /* LWIP_ARP */
|
||||
#else /* NO_SYS */
|
||||
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gw, NULL, ethernetif_init, tcpip_input));
|
||||
#endif /* NO_SYS */
|
||||
netif_set_up(&netif);
|
||||
|
||||
#if LWIP_HAVE_LOOPIF
|
||||
IP4_ADDR(&loop_gw, 127,0,0,1);
|
||||
IP4_ADDR(&loop_ipaddr, 127,0,0,1);
|
||||
IP4_ADDR(&loop_netmask, 255,0,0,0);
|
||||
@ -200,10 +181,38 @@ msvc_netif_init()
|
||||
#endif /* NO_SYS */
|
||||
netif_set_up(&loop_netif);
|
||||
#endif /* LWIP_HAVE_LOOPIF */
|
||||
|
||||
#if LWIP_DHCP
|
||||
gw.addr = 0;
|
||||
ipaddr.addr = 0;
|
||||
netmask.addr = 0;
|
||||
printf("Starting lwIP, local interface IP is dhcp-enabled\n");
|
||||
#else /* LWIP_DHCP */
|
||||
LWIP_PORT_INIT_GW(&gw);
|
||||
LWIP_PORT_INIT_IPADDR(&ipaddr);
|
||||
LWIP_PORT_INIT_NETMASK(&netmask);
|
||||
printf("Starting lwIP, local interface IP is %s\n", inet_ntoa(*(struct in_addr*)&ipaddr));
|
||||
#endif /* LWIP_DHCP */
|
||||
|
||||
#if NO_SYS
|
||||
#if LWIP_ARP
|
||||
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gw, NULL, ethernetif_init, ethernet_input));
|
||||
#else /* LWIP_ARP */
|
||||
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gw, NULL, ethernetif_init, ip_input));
|
||||
#endif /* LWIP_ARP */
|
||||
#else /* NO_SYS */
|
||||
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gw, NULL, ethernetif_init, tcpip_input));
|
||||
#endif /* NO_SYS */
|
||||
#if LWIP_DHCP
|
||||
dhcp_start(&netif);
|
||||
#else /* LWIP_DHCP */
|
||||
netif_set_up(&netif);
|
||||
#endif /* LWIP_DHCP */
|
||||
}
|
||||
|
||||
void dns_found(const char *name, struct ip_addr *addr, void *arg)
|
||||
{ printf("%s: %s\n", name, addr?inet_ntoa(*(struct in_addr*)addr):"<not found>");
|
||||
{
|
||||
printf("%s: %s\n", name, addr?inet_ntoa(*(struct in_addr*)addr):"<not found>");
|
||||
}
|
||||
|
||||
/* This function initializes applications */
|
||||
@ -218,7 +227,7 @@ apps_init()
|
||||
}
|
||||
#endif /* LWIP_DNS */
|
||||
|
||||
#if LWIP_RAW
|
||||
#if LWIP_RAW && LWIP_ICMP
|
||||
ping_init();
|
||||
#endif /* LWIP_RAW */
|
||||
|
||||
@ -292,11 +301,11 @@ void main_loop()
|
||||
#endif /* NO_SYS */
|
||||
|
||||
/* check for packets */
|
||||
update_adapter();
|
||||
ethernetif_poll(&netif);
|
||||
}
|
||||
|
||||
/* release the pcap library... */
|
||||
shutdown_adapter();
|
||||
ethernetif_shutdown(&netif);
|
||||
}
|
||||
|
||||
int main(void)
|
||||
|
Loading…
Reference in New Issue
Block a user