自学教程：C++ uip_input函数代码示例

/////////////////////////////////////////////////////////////////////////////// The uIP Task is executed each mS/////////////////////////////////////////////////////////////////////////////static void UIP_TASK_Handler(void *pvParameters){  int i;  struct timer periodic_timer, arp_timer;  // take over exclusive access to UIP functions  MUTEX_UIP_TAKE;  // init uIP timers  timer_set(&periodic_timer, CLOCK_SECOND / 2);  timer_set(&arp_timer, CLOCK_SECOND * 10);  // init the network driver  network_device_init();  // init uIP  uip_init();  uip_arp_init();  // set my ethernet address  unsigned char *mac_addr = network_device_mac_addr();  {    int i;    for(i=0; i<6; ++i)      uip_ethaddr.addr[i] = mac_addr[i];  }  // enable dhcp mode (can be changed during runtime)  UIP_TASK_DHCP_EnableSet(dhcp_enabled);  // release exclusive access to UIP functions  MUTEX_UIP_GIVE;#if 0  // wait until HW config has been loaded  do {    vTaskDelay(1 / portTICK_RATE_MS);  } while( !SEQ_FILE_HW_ConfigLocked() );#endif  // Initialise the xLastExecutionTime variable on task entry  portTickType xLastExecutionTime = xTaskGetTickCount();  // endless loop  while( 1 ) {#if 0    do {      vTaskDelayUntil(&xLastExecutionTime, 1 / portTICK_RATE_MS);    } while( TASK_MSD_EnableGet() ); // don't service ethernet if MSD mode enabled for faster transfer speed#else    vTaskDelayUntil(&xLastExecutionTime, 1 / portTICK_RATE_MS);#endif    // take over exclusive access to UIP functions    MUTEX_UIP_TAKE;    if( !(clock_time_tick() % 100) ) {      // each 100 mS: check availablility of network device#if defined(MIOS32_BOARD_MBHP_CORE_LPC17) || defined(MIOS32_BOARD_LPCXPRESSO)      network_device_check();      // TK: on STM32 no auto-detection for MBSEQ for best performance if no MBHP_ETH module connected      // the user has to reboot MBSEQ to restart module detection#endif    }    if( network_device_available() ) {      uip_len = network_device_read();      if( uip_len > 0 ) {	if(BUF->type == HTONS(UIP_ETHTYPE_IP) ) {	  uip_arp_ipin();	  uip_input();		  /* If the above function invocation resulted in data that	     should be sent out on the network, the global variable	     uip_len is set to a value > 0. */	  if( uip_len > 0 ) {	    uip_arp_out();	    network_device_send();	  }	} else if(BUF->type == HTONS(UIP_ETHTYPE_ARP)) {	  uip_arp_arpin();	  /* If the above function invocation resulted in data that	     should be sent out on the network, the global variable	     uip_len is set to a value > 0. */	  if(uip_len > 0) {	    network_device_send();	  }	}      } else if(timer_expired(&periodic_timer)) {	timer_reset(&periodic_timer);	for(i = 0; i < UIP_CONNS; i++) {	  uip_periodic(i);	  /* If the above function invocation resulted in data that	     should be sent out on the network, the global variable	     uip_len is set to a value > 0. *///.........这里部分代码省略.........

void vuIP_Task( void *pvParameters ){portBASE_TYPE i;uip_ipaddr_t xIPAddr;struct timer periodic_timer, arp_timer;extern void ( vEMAC_ISR_Wrapper )( void );	/* Create the semaphore used by the ISR to wake this task. */	vSemaphoreCreateBinary( xEMACSemaphore );		/* Initialise the uIP stack. */	timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );	timer_set( &arp_timer, configTICK_RATE_HZ * 10 );	uip_init();	uip_ipaddr( xIPAddr, uipIP_ADDR0, uipIP_ADDR1, uipIP_ADDR2, uipIP_ADDR3 );	uip_sethostaddr( xIPAddr );	httpd_init();	/* Initialise the MAC. */	while( Init_EMAC() != pdPASS )    {        vTaskDelay( uipINIT_WAIT );    }	portENTER_CRITICAL();	{		MAC_INTENABLE = INT_RX_DONE;        VICIntEnable |= 0x00200000;        VICVectAddr21 = ( long ) vEMAC_ISR_Wrapper;		prvSetMACAddress();	}	portEXIT_CRITICAL();		for( ;; )	{		/* Is there received data ready to be processed? */		uip_len = uiGetEMACRxData( uip_buf );				if( uip_len > 0 )		{			/* Standard uIP loop taken from the uIP manual. */			if( xHeader->type == htons( UIP_ETHTYPE_IP ) )			{				uip_arp_ipin();				uip_input();				/* If the above function invocation resulted in data that 				should be sent out on the network, the global variable 				uip_len is set to a value > 0. */				if( uip_len > 0 )				{					uip_arp_out();					prvENET_Send();				}			}			else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )			{				uip_arp_arpin();				/* If the above function invocation resulted in data that 				should be sent out on the network, the global variable 				uip_len is set to a value > 0. */				if( uip_len > 0 )				{					prvENET_Send();				}			}		}		else		{			if( timer_expired( &periodic_timer ) )			{				timer_reset( &periodic_timer );				for( i = 0; i < UIP_CONNS; i++ )				{					uip_periodic( i );						/* If the above function invocation resulted in data that 					should be sent out on the network, the global variable 					uip_len is set to a value > 0. */					if( uip_len > 0 )					{						uip_arp_out();						prvENET_Send();					}				}						/* Call the ARP timer function every 10 seconds. */				if( timer_expired( &arp_timer ) )				{					timer_reset( &arp_timer );					uip_arp_timer();				}			}			else			{							/* We did not receive a packet, and there was no periodic				processing to perform.  Block for a fixed period.  If a packet				is received during this period we will be woken by the ISR//.........这里部分代码省略.........

void uip_task( void *pvParameters ){portBASE_TYPE i;uip_ipaddr_t xIPAddr;struct timer periodic_timer, arp_timer;extern void ( vEMAC_ISR_Wrapper )( void );	( void ) pvParameters;	/* Initialise the uIP stack. */	timer_set( &periodic_timer, configTICK_RATE_HZ / 2 );	timer_set( &arp_timer, configTICK_RATE_HZ * 10 );	uip_init();	uip_ipaddr( xIPAddr, configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );	uip_sethostaddr( xIPAddr );	uip_ipaddr( xIPAddr, configNET_MASK0, configNET_MASK1, configNET_MASK2, configNET_MASK3 );	uip_setnetmask( xIPAddr );	network_init();	/* Create the semaphore used to wake the uIP task. */	vSemaphoreCreateBinary( xEMACSemaphore );	/* Initialise the MAC. */	while( lEMACInit() != pdPASS )    {        vTaskDelay( uipINIT_WAIT );    }	portENTER_CRITICAL();	{		LPC_EMAC->IntEnable = ( INT_RX_DONE | INT_TX_DONE );		/* Set the interrupt priority to the max permissible to cause some		interrupt nesting. */		NVIC_SetPriority( ENET_IRQn, configEMAC_INTERRUPT_PRIORITY );		/* Enable the interrupt. */		NVIC_EnableIRQ( ENET_IRQn );		prvSetMACAddress();	}	portEXIT_CRITICAL();	for( ;; )	{		/* Is there received data ready to be processed? */		uip_len = ulGetEMACRxData();		if( ( uip_len > 0 ) && ( uip_buf != NULL ) )		{			/* Standard uIP loop taken from the uIP manual. */			if( xHeader->type == htons( UIP_ETHTYPE_IP ) )			{				uip_arp_ipin();				uip_input();				/* If the above function invocation resulted in data that				should be sent out on the network, the global variable				uip_len is set to a value > 0. */				if( uip_len > 0 )				{					uip_arp_out();					vSendEMACTxData( uip_len );				}			}			else if( xHeader->type == htons( UIP_ETHTYPE_ARP ) )			{				uip_arp_arpin();				/* If the above function invocation resulted in data that				should be sent out on the network, the global variable				uip_len is set to a value > 0. */				if( uip_len > 0 )				{					vSendEMACTxData( uip_len );				}			}		}		else		{			if( timer_expired( &periodic_timer ) && ( uip_buf != NULL ) )			{				timer_reset( &periodic_timer );				for( i = 0; i < UIP_CONNS; i++ )				{					uip_periodic( i );					/* If the above function invocation resulted in data that					should be sent out on the network, the global variable					uip_len is set to a value > 0. */					if( uip_len > 0 )					{						uip_arp_out();						vSendEMACTxData( uip_len );					}				}								for( i = 0; i < UIP_UDP_CONNS; i++ )				{					uip_udp_periodic( i );//.........这里部分代码省略.........

/*-----------------------------------------------------------------------------------*/intmain(void){	idata u8_t i, arptimer;	idata u16_t j;//	idata int i;	InitGraphic();//putchar(0,62,0);	//while(1)	for(i=0;i<100;i++)	{		putstring(6,0, "Welcome to http://shop34480016.taobao.com  www.dianshijin.cn");	}	init_uart();	printu("starting....../r/n");	/* Initialize the device driver. */ 	//  rtl8019as_init();	dev_init();	uip_arp_init();	/* Initialize the uIP TCP/IP stack. */	uip_init();	printu("11111111111111111111111/r/n");	/* Initialize the HTTP server. *///	httpd_init();	tcp_server_init();		arptimer = 0;	printu("222222222222222222222222222/r/n");  while(1) {    /* Let the tapdev network device driver read an entire IP packet       into the uip_buf. If it must wait for more than 0.5 seconds, it       will return with the return value 0. If so, we know that it is       time to call upon the uip_periodic(). Otherwise, the tapdev has       received an IP packet that is to be processed by uIP. */    uip_len = dev_poll();	for(j=0;j<500;j++);/*	if(uip_len > 0)	{		printuf("--------------- uip_len = 0x%x", uip_len);		printuf("%x ----------/r/n", uip_len);		for(i=0;i<uip_len;i++)		{			printuf("%x ", uip_buf[i]);			if((i+1)%16==0) printu("/r/n");					}		printu("/r/n");				}*/    if(uip_len == 0) {      for(i = 0; i < UIP_CONNS; i++) {	uip_periodic(i);	/* If the above function invocation resulted in data that	   should be sent out on the network, the global variable	   uip_len is set to a value > 0. */	if(uip_len > 0) {	  uip_arp_out();	  dev_send();	}      }#if UIP_UDP      for(i = 0; i < UIP_UDP_CONNS; i++) {	uip_udp_periodic(i);	/* If the above function invocation resulted in data that	   should be sent out on the network, the global variable	   uip_len is set to a value > 0. */	if(uip_len > 0) {	  uip_arp_out();	  dev_send();	}      }#endif /* UIP_UDP */            /* Call the ARP timer function every 10 seconds. */      if(++arptimer == 20) {		uip_arp_timer();	arptimer = 0;      }          } else {      if(BUF->type == htons(UIP_ETHTYPE_IP)) {	uip_arp_ipin();	uip_input();	/* If the above function invocation resulted in data that	   should be sent out on the network, the global variable	   uip_len is set to a value > 0. */	if(uip_len > 0) {	  uip_arp_out();	  dev_send();	}      } else if(BUF->type == htons(UIP_ETHTYPE_ARP)) {	uip_arp_arpin();	/* If the above function invocation resulted in data that	   should be sent out on the network, the global variable	   uip_len is set to a value > 0. */		if(uip_len > 0) {		  dev_send();	}//.........这里部分代码省略.........

// This gets called on both Ethernet RX interrupts and timer requests,// but it's called only from the Ethernet interrupt handlervoid elua_uip_mainloop(){  u32 temp, packet_len;  // Increment uIP timers  temp = platform_eth_get_elapsed_time();  periodic_timer += temp;  arp_timer += temp;    // Check for an RX packet and read it  if( ( packet_len = platform_eth_get_packet_nb( uip_buf, sizeof( uip_buf ) ) ) > 0 )  {    // Set uip_len for uIP stack usage.    uip_len = ( unsigned short )packet_len;    // Process incoming IP packets here.    if( BUF->type == htons( UIP_ETHTYPE_IP ) )    {      uip_arp_ipin();      uip_input();      // If the above function invocation resulted in data that      // should be sent out on the network, the global variable      // uip_len is set to a value > 0.      if( uip_len > 0 )      {        uip_arp_out();        device_driver_send();      }    }    // Process incoming ARP packets here.    else if( BUF->type == htons( UIP_ETHTYPE_ARP ) )    {      uip_arp_arpin();      // If the above function invocation resulted in data that      // should be sent out on the network, the global variable      // uip_len is set to a value > 0.      if( uip_len > 0 )        device_driver_send();    }  }    // Process TCP/IP Periodic Timer here.  // Also process the "force interrupt" events (platform_eth_force_interrupt)  if( periodic_timer >= UIP_PERIODIC_TIMER_MS )  {    periodic_timer = 0;    uip_set_forced_poll( 0 );  }  else    uip_set_forced_poll( 1 );  for( temp = 0; temp < UIP_CONNS; temp ++ )  {    uip_periodic( temp );    // If the above function invocation resulted in data that    // should be sent out on the network, the global variable    // uip_len is set to a value > 0.    if( uip_len > 0 )    {      uip_arp_out();      device_driver_send();    }  }#if UIP_UDP    for( temp = 0; temp < UIP_UDP_CONNS; temp ++ )    {      uip_udp_periodic( temp );      // If the above function invocation resulted in data that      // should be sent out on the network, the global variable      // uip_len is set to a value > 0.      if( uip_len > 0 )      {        uip_arp_out();        device_driver_send();      }    }#endif // UIP_UDP    // Process ARP Timer here.  if( arp_timer >= UIP_ARP_TIMER_MS )  {    arp_timer = 0;    uip_arp_timer();  }  }

/******************************************************************************  Main Control Loop**  *****************************************************************************/int main(void){  unsigned char i;  unsigned char arptimer=0;	// PORTB PB5 als Ausgang (in use LED)	DDRB=(1<<PB5);	PORTB=(1<<PB5);	init_sensors();  // init NIC device driver  nic_init();  // init uIP  uip_init();  // init app  example1_init();  // init ARP cache  uip_arp_init();  // init periodic timer  initTimer();    sei();	// initialisierendes lesen der Temperatur(en)	read_temp_sensors();  while(1)  {	if(minInt==1){		minInt=0;		read_temp_sensors();	}    // look for a packet    uip_len = nic_poll();    if(uip_len == 0)    {      // if timed out, call periodic function for each connection      //if(timerCounter > TIMERCOUNTER_PERIODIC_TIMEOUT)	  if(tInt)      {        		tInt = 0;		//timerCounter = 0;                for(i = 0; i < UIP_CONNS; i++)        {          uip_periodic(i);		          // transmit a packet, if one is ready          if(uip_len > 0)          {            uip_arp_out();            nic_send();          }        }        /* Call the ARP timer function every 10 seconds. */        if(++arptimer == 20)        {	          uip_arp_timer();          arptimer = 0;        }      }    }    else  // packet received    {      // process an IP packet      if(BUF->type == htons(UIP_ETHTYPE_IP))      {        // add the source to the ARP cache        // also correctly set the ethernet packet length before processing        uip_arp_ipin();        uip_input();        // transmit a packet, if one is ready        if(uip_len > 0)        {          uip_arp_out();          nic_send();        }      }      // process an ARP packet      else if(BUF->type == htons(UIP_ETHTYPE_ARP))      {        uip_arp_arpin();        // transmit a packet, if one is ready        if(uip_len > 0)          nic_send();//.........这里部分代码省略.........

/*---------------------------------------------------------------------------*/intmain(void){  EEPROM_main();  int i;  uip_ipaddr_t ipaddr;  struct timer periodic_timer, arp_timer;  memcpy (&uip_ethaddr.addr[0], &eeprom.MAC[0], 6);  AVR_init();  egpio_init();  clock_init();  mbuf_init();  adlc_init();  GICR = (1 << INT0);  timer_set(&periodic_timer, CLOCK_SECOND / 2);  timer_set(&arp_timer, CLOCK_SECOND * 10);  nic_init();  uip_ipaddr(ipaddr, eeprom.IPAddr[0],eeprom.IPAddr[1],eeprom.IPAddr[2],eeprom.IPAddr[3]);  uip_sethostaddr(ipaddr);  uip_ipaddr(ipaddr, eeprom.Gateway[0],eeprom.Gateway[1],eeprom.Gateway[2],eeprom.Gateway[3]);  uip_setdraddr(ipaddr);  uip_ipaddr(ipaddr, eeprom.Subnet[0],eeprom.Subnet[1],eeprom.Subnet[2],eeprom.Subnet[3]);  uip_setnetmask(ipaddr);  telnetd_init();  aun_init();  internet_init();  egpio_write (EGPIO_STATUS_GREEN);  while(1) {// check the econet for complete packets    adlc_poller();    aun_poller ();    uip_len = nic_poll();    if(uip_len > 0) {      if(BUF->type == htons(UIP_ETHTYPE_IP)) {	uip_arp_ipin();	uip_input();	/* If the above function invocation resulted in data that	   should be sent out on the network, the global variable	   uip_len is set to a value > 0. */	maybe_send();      } else if(BUF->type == htons(UIP_ETHTYPE_ARP)) {	uip_arp_arpin();	/* If the above function invocation resulted in data that	   should be sent out on the network, the global variable	   uip_len is set to a value > 0. */	if(uip_len > 0) {	  nic_send(NULL);	}      }    } else if(timer_expired(&periodic_timer)) {      timer_reset(&periodic_timer);      for(i = 0; i < UIP_CONNS; i++) {	uip_periodic(i);	maybe_send();      }#if UIP_UDP      for(i = 0; i < UIP_UDP_CONNS; i++) {	uip_udp_periodic(i);	maybe_send();      }#endif /* UIP_UDP */      /* Call the ARP timer function every 10 seconds. */      if(timer_expired(&arp_timer)) {	timer_reset(&arp_timer);	uip_arp_timer();      }    }  }}

/*----------------------------------------------------------------------------*/ intmain(void){  int i;  // Renesas -- uip_ipaddr_t ipaddr;  struct timer periodic_timer, arp_timer;  struct uip_eth_addr my_mac;    uint32_t ch = 0;  // Renesas ++  InitialiseLCD();  DisplayuIPDemo();  timer_init();  timer_set(&periodic_timer, CLOCK_SECOND / 2);  timer_set(&arp_timer, CLOCK_SECOND * 10);  Exosite_Get_MAC((unsigned char *)&my_mac);  // Renesas -- network_device_init();  /* Wait until Ether device initailize succesfully.      Make sure Ethernet cable is plugged in. */   while (R_ETHER_ERROR == R_Ether_Open(ch, (uint8_t*)&my_mac));  // Renesas ++ set Ethernet address  uip_setethaddr(my_mac);  uip_init();  // Renesas --   //uip_ipaddr(ipaddr, 192,168,0,2);  //uip_sethostaddr(ipaddr);  dhcpc_init(&my_mac, 6);  if (!Exosite_Init(APP_NAME, APP_VERSION)) DisplayLCD(LCD_LINE8, "==NEED CIK==");   while (1)  {    // Renesas -- uip_len = network_device_read();    uip_len = R_Ether_Read(ch, (void *)uip_buf);    if (uip_len > 0)    {      if (BUF->type == htons(UIP_ETHTYPE_IP))      {        uip_arp_ipin();        uip_input();        /* If the above function invocation resulted in data that           should be sent out on the network, the global variable           uip_len is set to a value > 0. */        if (uip_len > 0)        {          uip_arp_out();          // Renesas -- network_device_send();          R_Ether_Write(ch, (void *)uip_buf, (uint32_t)uip_len);        }      }      else if (BUF->type == htons(UIP_ETHTYPE_ARP))      {        uip_arp_arpin();        /* If the above function invocation resulted in data that           should be sent out on the network, the global variable           uip_len is set to a value > 0. */        if (uip_len > 0)        {          // Renesas -- network_device_send();          R_Ether_Write(ch, (void *)uip_buf, (uint32_t)uip_len);        }      }    }    else if (timer_expired(&periodic_timer))    {      timer_reset(&periodic_timer);      for (i = 0; i < UIP_CONNS; i++)      {        uip_periodic(i);        /* If the above function invocation resulted in data that           should be sent out on the network, the global variable           uip_len is set to a value > 0. */        if (uip_len > 0)        {          uip_arp_out();          // Renesas -- network_device_send();          R_Ether_Write(ch, (void *)uip_buf, (uint32_t)uip_len);        }      }#if UIP_UDP      for (i = 0; i < UIP_UDP_CONNS; i++)      {        uip_udp_periodic(i);        /* If the above function invocation resulted in data that           should be sent out on the network, the global variable           uip_len is set to a value > 0. */        if (uip_len > 0)        {          uip_arp_out();          // Renesas -- network_device_send();          R_Ether_Write(ch, (void *)uip_buf, (uint32_t)uip_len);        }      }//.........这里部分代码省略.........

int main(void){	network_init();	//CLKPR = (1<<CLKPCE);	//Change prescaler	//CLKPR = (1<<CLKPS0);	//Use prescaler 2	//clock_prescale_set(clock_div_2);	enc28j60Write(ECOCON, 1 & 0x7);	//Get a 25MHz signal from enc28j60	#if MY_DEBUG	uartInit();	uartSetBaudRate(9600);	rprintfInit(uartSendByte);	#endif	int i;	uip_ipaddr_t ipaddr; 	struct timer periodic_timer, arp_timer;	clock_init();	timer_set(&periodic_timer, CLOCK_SECOND / 2);	timer_set(&arp_timer, CLOCK_SECOND * 10);	uip_init();		struct uip_eth_addr mac = {UIP_ETHADDR0, UIP_ETHADDR1, UIP_ETHADDR2, UIP_ETHADDR3, UIP_ETHADDR4, UIP_ETHADDR5};	uip_setethaddr(mac);    telnetd_init();#ifdef __DHCPC_H__	dhcpc_init(&mac, 6);#else    uip_ipaddr(ipaddr, 192,168,0,1); 	uip_sethostaddr(ipaddr);    uip_ipaddr(ipaddr, 192,168,0,1);    uip_setdraddr(ipaddr);    uip_ipaddr(ipaddr, 255,255,255,0);    uip_setnetmask(ipaddr);#endif /*__DHCPC_H__*/	while(1){		uip_len = network_read(); 		if(uip_len > 0) {			if(BUF->type == htons(UIP_ETHTYPE_IP)){  				uip_arp_ipin();				uip_input();				if(uip_len > 0) {					uip_arp_out();					network_send();				}			}else if(BUF->type == htons(UIP_ETHTYPE_ARP)){				uip_arp_arpin();				if(uip_len > 0){					network_send();				}			}		}else if(timer_expired(&periodic_timer)) {			timer_reset(&periodic_timer);			for(i = 0; i < UIP_CONNS; i++) {				uip_periodic(i);				if(uip_len > 0) {					uip_arp_out();					network_send();				}			}			#if UIP_UDP			for(i = 0; i < UIP_UDP_CONNS; i++) {				uip_udp_periodic(i);				if(uip_len > 0) {					uip_arp_out();					network_send();				}			}			#endif /* UIP_UDP */			if(timer_expired(&arp_timer)) {				timer_reset(&arp_timer);				uip_arp_timer();			}		}	}	return 0;}

//.........这里部分代码省略.........    printf("Setting ip to %u.%u.%u.%u /r/n", myip[0], myip[1], myip[2], myip[3]);    resolv_init();    uip_ipaddr(ipaddr, dnsip[0], dnsip[1], dnsip[2], dnsip[3]);    resolv_conf(ipaddr);    webclient_init();    printf("Stokerbot NG R3 ready  -  Firmware %u.%u .../r/n", SBNG_VERSION_MAJOR, SBNG_VERSION_MINOR);//    fprintf(&lcd_str, "?y2?x00Firmware %u.%u ready.", SBNG_VERSION_MAJOR, SBNG_VERSION_MINOR);//    SPILCD_init();    wdt_reset();    while (1) {        //Only one event may fire per loop, listed in order of importance        //If an event is skipped, it will be run next loop        if (tickDiff(timer_Count) >= 1) {            timer_Count = tick;            wdt_reset(); //sikre at watchdog resetter os hvis timer systemet fejler, vi n
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