mirror of
https://gitea.osmocom.org/sim-card/simtrace2.git
synced 2026-03-16 21:28:33 +03:00
4ba4d2230b
It is possible to use sniffer.py to sniff the phone-simcard-communication. To be fixed: The buffer size read is fixed and the data is only send over USB if the buffer max length is reached. which means we don not get the last bytes of the transaction. This should be changed in one of the next commits. Maybe the former simtrace code can give some inspiration on this topic.
99 lines
3.8 KiB
C
99 lines
3.8 KiB
C
/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2009, Atmel Corporation
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*
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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 are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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/*------------------------------------------------------------------------------
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* Headers
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*------------------------------------------------------------------------------*/
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#include "board.h"
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#include <string.h>
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/*------------------------------------------------------------------------------
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* Internal definitions
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*------------------------------------------------------------------------------*/
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// FIXME: Remove:
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#define PR TRACE_DEBUG
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/** Maximum ucSize in bytes of the smartcard answer to a command.*/
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#define MAX_ANSWER_SIZE 10
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/** Maximum ATR ucSize in bytes.*/
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#define MAX_ATR_SIZE 55
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/*------------------------------------------------------------------------------
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* Internal variables
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*------------------------------------------------------------------------------*/
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/** ISO7816 pins */
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static const Pin pinsISO7816_sniff[] = {PINS_SIM_SNIFF_SIM};
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static const Pin pins_bus[] = {PINS_BUS_SNIFF};
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static const Pin pPwr[] = {
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/* Enable power converter 4.5-6V to 3.3V; low: off */
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{SIM_PWEN, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT},
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/* Enable second power converter: VCC_PHONE to VCC_SIM; high: on */
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{VCC_FWD, PIOA, ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
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};
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extern uint32_t char_stat;
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extern uint8_t rcvdChar;
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extern ring_buffer buf;
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/*-----------------------------------------------------------------------------
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* Initialization routine
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*-----------------------------------------------------------------------------*/
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void Sniffer_Init( void )
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{
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/* Configure ISO7816 driver */
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PIO_Configure( pinsISO7816_sniff, PIO_LISTSIZE( pinsISO7816_sniff ) ) ;
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PIO_Configure( pins_bus, PIO_LISTSIZE( pins_bus) ) ;
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PIO_Configure(pPwr, PIO_LISTSIZE( pPwr ));
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_ISO7816_Init();
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USART_SetReceiverEnabled(USART_PHONE, 1);
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}
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void Sniffer_run( void )
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{
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uint8_t c = 0;
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c++;
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if (rcvdChar != 0) {
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/* DATA_IN for host side is data_out for simtrace side */
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/* FIXME: Performancewise sending a USB packet for every byte is a disaster */
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PR("----- %x %x %x ..\n\r", buf.buf[0], buf.buf[1],buf.buf[2] );
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USBD_Write( DATAIN, buf.buf, BUFLEN, 0, 0 );
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// USBD_Write( DATAIN, &c, 1, 0, 0 );
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PR("----- Rcvd char\n\r");
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rcvdChar = 0;
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}
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}
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