Esempi in C++ (Cpp) per IAP_tftp_decode_op

Esempio n. 1

/**
  * @brief  Processes traffic received on UDP port 69
  * @param  args: pointer on tftp_connection arguments
  * @param  upcb: pointer on udp_pcb structure
  * @param  pbuf: pointer on packet buffer
  * @param  addr: pointer on the receive IP address
  * @param  port: receive port number
  * @retval None
  */
static void IAP_tftp_recv_callback(void *arg, struct udp_pcb *upcb, struct pbuf *pkt_buf,
                                   struct ip_addr *addr, u16_t port)
{
    tftp_opcode op;
    struct udp_pcb *upcb_tftp_data;
    err_t err;

#ifdef USE_LCD
    uint32_t i;
    char filename[40],message[40], *ptr;
#endif

    /* create new UDP PCB structure */
    upcb_tftp_data = udp_new();
    if (!upcb_tftp_data)
    {
        /* Error creating PCB. Out of Memory  */
#ifdef USE_LCD
        LCD_ErrLog("Can not create pcb \n");
#endif
        return;
    }

    /* bind to port 0 to receive next available free port */
    /* NOTE:  This is how TFTP works.  There is a UDP PCB for the standard port
    * 69 which al transactions begin communication on, however, _all_ subsequent
    * transactions for a given "stream" occur on another port  */
    err = udp_bind(upcb_tftp_data, IP_ADDR_ANY, 0);
    if (err != ERR_OK)
    {
        /* Unable to bind to port */
#ifdef USE_LCD
        LCD_ErrLog("Can not create pcb \n");
#endif
        return;
    }

    op = IAP_tftp_decode_op(pkt_buf->payload);
    if (op != TFTP_WRQ)
    {
        /* remove PCB */
#ifdef USE_LCD
        LCD_ErrLog("Bad TFTP opcode \n");
#endif
        udp_remove(upcb_tftp_data);
    }
    else
    {

#ifdef USE_LCD
        ptr = pkt_buf->payload;
        ptr = ptr +2;
        /*extract file name info */
        i= 0;
        while (*(ptr+i)!=0x0)
        {
            i++;
        }
        strncpy(filename, ptr, i+1);

        LCD_UsrLog("IAP using TFTP \n");
        sprintf(message, "File: %s",filename);
        LCD_UsrLog("%s\n", message);
        LCD_UsrLog("  State: Erasing...\n");
#endif

        /* Start the TFTP write mode*/
        IAP_tftp_process_write(upcb_tftp_data, addr, port);
    }
    pbuf_free(pkt_buf);
}

Esempio n. 2

File: tftpserver.c Progetto: dasuimao/DTS-2500_HMI0030_BOOT

/**
  * @brief  Processes traffic received on UDP port 69
  * @param  args: pointer on tftp_connection arguments
  * @param  upcb: pointer on udp_pcb structure
  * @param  pbuf: pointer on packet buffer
  * @param  addr: pointer on the receive IP address
  * @param  port: receive port number
  * @retval none
  */
static void IAP_tftp_recv_callback(void *arg, struct udp_pcb *upcb, struct pbuf *pkt_buf,
                        struct ip_addr *addr, u16_t port)
{
  tftp_opcode op;
  struct udp_pcb *upcb_tftp_data;
  err_t err;

	#ifdef USE_LCD
	  uint32_t i;
	  char filename[40],message[40], *ptr;
	#endif

  /* create new UDP PCB structure */
  upcb_tftp_data = udp_new();
  if (!upcb_tftp_data)
  {
	  udp_lcd_y += UPDATE_WORD_SIZE + UPDATE_ROW_DISTANCE;
	  lcd_font24(udp_lcd_x,udp_lcd_y,COLOR_POINT,COLOR_BACK,"> ÒÔÌ«ÍøÉý¼¶³ö´íÁË¡£´íÎó´úÂ룺6",UPDATE_FONT); 
	  UDP_AddUpdateError();
//     /* Error creating PCB. Out of Memory  */
// 	#ifdef USE_LCD
// 		LCD_SetTextColor(Red);
// 		LCD_DisplayStringLine(Line9, (uint8_t*)"Can not create pcb");
// 	#endif
    return;
  }

  /* bind to port 0 to receive next available free port */
  /* NOTE:  This is how TFTP works.  There is a UDP PCB for the standard port
  * 69 which al transactions begin communication on, however, _all_ subsequent
  * transactions for a given "stream" occur on another port  */
  err = udp_bind(upcb_tftp_data, IP_ADDR_ANY, 0);
  if (err != ERR_OK)
  {
	  udp_lcd_y += UPDATE_WORD_SIZE + UPDATE_ROW_DISTANCE;
	  lcd_font24(udp_lcd_x,udp_lcd_y,COLOR_POINT,COLOR_BACK,"> ÒÔÌ«ÍøÉý¼¶³ö´íÁË¡£´íÎó´úÂ룺7",UPDATE_FONT); 
	  UDP_AddUpdateError();
//     /* Unable to bind to port */
// 	#ifdef USE_LCD
// 		LCD_SetTextColor(Red);
// 		LCD_DisplayStringLine(Line9, (uint8_t*)"Can not bind pcb");
// 	#endif
    return;
  }

  op = IAP_tftp_decode_op(pkt_buf->payload);
  if (op != TFTP_WRQ)
  {
	  udp_lcd_y += UPDATE_WORD_SIZE + UPDATE_ROW_DISTANCE;
	  lcd_font24(udp_lcd_x,udp_lcd_y,COLOR_POINT,COLOR_BACK,"> ÒÔÌ«ÍøÉý¼¶³ö´íÁË¡£´íÎó´úÂ룺8",UPDATE_FONT); 
	  UDP_AddUpdateError();
//     /* remove PCB */
// 	#ifdef USE_LCD
// 		LCD_SetTextColor(Red);
// 		LCD_DisplayStringLine(Line9, (uint8_t*)"Bad TFTP opcode ");
// 	#endif
    udp_remove(upcb_tftp_data);
  }
  else
  {
    
// #ifdef USE_LCD
//     ptr = pkt_buf->payload;
//     ptr = ptr +2;
//     /*extract file name info */
//     i= 0;
//     while (*(ptr+i)!=0x0)
//     {
//       i++;
//     }
//     strncpy(filename, ptr, i+1);
//            
//     /* Set the LCD Text Color */
//     LCD_SetTextColor(White);
//     LCD_Clear(Black);
//     
//     LCD_DisplayStringLine(Line0, (uint8_t*)"  IAP using TFTP  ");
//     sprintf(message, "File: %s",filename);
//     LCD_DisplayStringLine(Line3, (uint8_t*)message); 
//     /* Set the LCD Text Color */
//     LCD_DisplayStringLine(Line8, (uint8_t*)"State: Erasing...");
//     
// #endif
     
    /* Start the TFTP write mode*/
    IAP_tftp_process_write(upcb_tftp_data, addr, port);
  }
  pbuf_free(pkt_buf);
}