diff options
author | Christina Quast <chrysh.ng+git@gmail.com> | 2015-04-12 09:31:36 +0200 |
---|---|---|
committer | Christina Quast <chrysh.ng+git@gmail.com> | 2015-04-12 09:31:36 +0200 |
commit | 2b8a18bf3a053496360c24e4080345f03d0498d9 (patch) | |
tree | 3a6ed59f0ba848c067cb83d79034619cc9aa7570 /firmware | |
parent | 5c6a299c713471248f70632c682ed9ecee984223 (diff) |
Sniffer with ringbuf, works SOMETIMES
* Sniffer uses phone endpoints for communication and the ringbuffer
routines the phone communication uses
* Most times the Usart1 interrupt is not triggered, and therefore
no values are recorded
Diffstat (limited to 'firmware')
-rw-r--r-- | firmware/Makefile | 2 | ||||
-rw-r--r-- | firmware/src_simtrace/host_communication.c | 42 | ||||
-rw-r--r-- | firmware/src_simtrace/phone.c | 37 | ||||
-rw-r--r-- | firmware/src_simtrace/ringbuffer.h | 2 | ||||
-rw-r--r-- | firmware/src_simtrace/simtrace.h | 1 | ||||
-rw-r--r-- | firmware/src_simtrace/simtrace_iso7816.c | 8 | ||||
-rw-r--r-- | firmware/src_simtrace/sniffer.c | 14 | ||||
-rw-r--r-- | firmware/src_simtrace/usb.c | 12 |
8 files changed, 59 insertions, 59 deletions
diff --git a/firmware/Makefile b/firmware/Makefile index c9be267..4380703 100644 --- a/firmware/Makefile +++ b/firmware/Makefile @@ -138,7 +138,7 @@ C_CMSIS = core_cm3.o C_LOWLEVEL = board_cstartup_gnu.o board_lowlevel.o syscalls.o exceptions.o C_LIBLEVEL = spi.o pio.o pmc.o usart.o pio_it.o pio_capture.o uart_console.o iso7816_4.o wdt.o led.o tc.o C_CCID = cciddriver.o USBD.o USBDDriver.o USBD_HAL.o USBRequests.o USBDCallbacks.o USBDescriptors.o USBDDriverCallbacks.o -C_SIMTRACE = simtrace_iso7816.o usb.o ccid.o sniffer.o phone.o mitm.o ringbuffer.o #tc_etu.o +C_SIMTRACE = simtrace_iso7816.o usb.o ccid.o sniffer.o phone.o mitm.o ringbuffer.o host_communication.o #tc_etu.o C_APPLEVEL = main.o C_OBJECTS = $(C_CMSIS) $(C_LOWLEVEL) $(C_LIBLEVEL) $(C_APPLEVEL) $(C_CCID) $(C_SIMTRACE) diff --git a/firmware/src_simtrace/host_communication.c b/firmware/src_simtrace/host_communication.c new file mode 100644 index 0000000..87234d3 --- /dev/null +++ b/firmware/src_simtrace/host_communication.c @@ -0,0 +1,42 @@ +#include "board.h" + +static volatile bool write_to_host_in_progress = false; + +void USB_write_callback(uint8_t *pArg, uint8_t status, uint32_t transferred, uint32_t remaining) +{ + if (status != USBD_STATUS_SUCCESS) { + TRACE_ERROR("USB err status: %d (%s)\n", __FUNCTION__, status); + } + write_to_host_in_progress = false; + printf("WR_CB\n"); +} + +int send_to_host() +{ + static uint8_t msg[RING_BUFLEN]; + int ret = 0; + int i; + + for(i = 0; !rbuf_is_empty(&sim_rcv_buf) && i < sizeof(msg); i++) { + msg[i] = rbuf_read(&sim_rcv_buf); + } + printf("Wr %d\n", i); + write_to_host_in_progress = true; + ret = USBD_Write( PHONE_DATAIN, msg, i, (TransferCallback)&USB_write_callback, 0 ); + if (ret != USBD_STATUS_SUCCESS) { + TRACE_ERROR("Error sending to host (%x)\n", ret); + write_to_host_in_progress = false; + } + return ret; +} + +int check_data_from_phone() +{ + int ret = 0; + + if((rbuf_is_empty(&sim_rcv_buf) || write_to_host_in_progress == true)) { + return ret; + } + ret = send_to_host(); + return ret; +} diff --git a/firmware/src_simtrace/phone.c b/firmware/src_simtrace/phone.c index 11ff868..1ea158b 100644 --- a/firmware/src_simtrace/phone.c +++ b/firmware/src_simtrace/phone.c @@ -124,7 +124,6 @@ static const Pin pinPhoneRST = PIN_ISO7816_RST_PHONE; /** Variable for state of send and receive froom USART */ static uint8_t StateUsartGlobal = USART_RCV; -static bool write_to_host_in_progress = false; static uint8_t host_to_sim_buf[BUFLEN]; /*----------------------------------------------------------------------------- @@ -306,42 +305,6 @@ void Phone_init( void ) { } -void USB_write_callback(uint8_t *pArg, uint8_t status, uint32_t transferred, uint32_t remaining) -{ - if (status != USBD_STATUS_SUCCESS) { - TRACE_ERROR("USB err status: %d (%s)\n", __FUNCTION__, status); - } - write_to_host_in_progress = false; -} - -int send_to_host() -{ - static uint8_t msg[RING_BUFLEN]; - int ret = 0; - int i; - - for(i = 0; !rbuf_is_empty(&sim_rcv_buf); i++) { - msg[i] = rbuf_read(&sim_rcv_buf); - } - write_to_host_in_progress = true; - ret = USBD_Write( PHONE_DATAIN, msg, i, (TransferCallback)&USB_write_callback, 0 ); - return ret; -} - -int check_data_from_phone() -{ - int ret = 0; - - while (rbuf_is_empty(&sim_rcv_buf) || write_to_host_in_progress == true) - __WFI(); - ret = send_to_host(); - if (ret != USBD_STATUS_SUCCESS) { - TRACE_ERROR("Error sending to host (%x)", ret); - return ret; - } - return ret; -} - // Sniffed Phone to SIM card communication: // phone > sim : RST // phone < sim : ATR diff --git a/firmware/src_simtrace/ringbuffer.h b/firmware/src_simtrace/ringbuffer.h index 691c62b..771c73f 100644 --- a/firmware/src_simtrace/ringbuffer.h +++ b/firmware/src_simtrace/ringbuffer.h @@ -5,7 +5,7 @@ #include <stdbool.h> #include <sys/types.h> -#define RING_BUFLEN 64 +#define RING_BUFLEN 1024 typedef struct ringbuf { uint8_t buf[RING_BUFLEN]; diff --git a/firmware/src_simtrace/simtrace.h b/firmware/src_simtrace/simtrace.h index 229207d..9634b0e 100644 --- a/firmware/src_simtrace/simtrace.h +++ b/firmware/src_simtrace/simtrace.h @@ -46,6 +46,7 @@ typedef struct { extern const USBConfigurationDescriptor *configurationDescriptorsArr[]; /* Helper functions */ +int check_data_from_phone(); // FIXME: static function definitions extern uint32_t _ISO7816_GetChar( uint8_t *pCharToReceive ); diff --git a/firmware/src_simtrace/simtrace_iso7816.c b/firmware/src_simtrace/simtrace_iso7816.c index e4ff830..47232df 100644 --- a/firmware/src_simtrace/simtrace_iso7816.c +++ b/firmware/src_simtrace/simtrace_iso7816.c @@ -102,7 +102,6 @@ void USART1_IrqHandler( void ) } */ uint32_t csr = USART_PHONE->US_CSR; -// PR("---- stat: %x\n\r", csr); if (csr & US_CSR_TXRDY) { /* transmit buffer empty, nothing to transmit */ @@ -111,14 +110,15 @@ void USART1_IrqHandler( void ) stat = (csr&(US_CSR_OVRE|US_CSR_FRAME| US_CSR_PARE|US_CSR_TIMEOUT|US_CSR_NACK| (1<<10))); -// int c = (USART_PHONE->US_RHR) & 0xFF; + uint8_t c = (USART_PHONE->US_RHR) & 0xFF; // printf(" %x", c); if (stat == 0 ) { /* Fill char into buffer */ - rbuf_write(&sim_rcv_buf, (USART_PHONE->US_RHR) & 0xFF); + rbuf_write(&sim_rcv_buf, c); } else { - PR("e %x st: %x\n", (USART_PHONE->US_RHR) & 0xFF, stat); + rbuf_write(&sim_rcv_buf, c); + PR("e %x st: %x\n", c, stat); } /* else: error occured */ char_stat = stat; diff --git a/firmware/src_simtrace/sniffer.c b/firmware/src_simtrace/sniffer.c index acc17f3..662083c 100644 --- a/firmware/src_simtrace/sniffer.c +++ b/firmware/src_simtrace/sniffer.c @@ -65,14 +65,17 @@ static const Pin pPwr[] = { *-----------------------------------------------------------------------------*/ void Sniffer_configure( void ){ + TRACE_INFO("Sniffer config\n"); } void Sniffer_exit( void ){ + TRACE_INFO("Sniffer exit\n"); USART_SetReceiverEnabled(USART_PHONE, 0); } void Sniffer_init( void ) { + TRACE_INFO("Sniffer Init\n"); /* Configure ISO7816 driver */ PIO_Configure( pinsISO7816_sniff, PIO_LISTSIZE( pinsISO7816_sniff ) ) ; PIO_Configure( pins_bus, PIO_LISTSIZE( pins_bus) ) ; @@ -86,14 +89,5 @@ void Sniffer_init( void ) void Sniffer_run( void ) { -#if 0 - if (rcvdChar != 0) { - /* DATA_IN for host side is data_out for simtrace side */ - /* FIXME: Performancewise sending a USB packet for every byte is a disaster */ - PR("----- %x %x %x ..\n\r", buf.buf[0], buf.buf[1],buf.buf[2] ); - USBD_Write( DATAIN, (void *) buf.buf, BUFLEN, 0, 0 ); - PR("----- Rcvd char\n\r"); - rcvdChar = 0; - } -#endif + check_data_from_phone(); } diff --git a/firmware/src_simtrace/usb.c b/firmware/src_simtrace/usb.c index ef18441..ffc44e0 100644 --- a/firmware/src_simtrace/usb.c +++ b/firmware/src_simtrace/usb.c @@ -200,9 +200,9 @@ const SIMTraceDriverConfigurationDescriptorSniffer configurationDescriptorSniffe sizeof(USBEndpointDescriptor), USBGenericDescriptor_ENDPOINT, USBEndpointDescriptor_ADDRESS(USBEndpointDescriptor_OUT, - DATAOUT), + PHONE_DATAOUT), USBEndpointDescriptor_BULK, - MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(DATAOUT), + MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(PHONE_DATAOUT), USBEndpointDescriptor_MAXBULKSIZE_FS), 0 /* Must be 0 for full-speed bulk endpoints */ }, @@ -211,9 +211,9 @@ const SIMTraceDriverConfigurationDescriptorSniffer configurationDescriptorSniffe sizeof(USBEndpointDescriptor), USBGenericDescriptor_ENDPOINT, USBEndpointDescriptor_ADDRESS(USBEndpointDescriptor_IN, - DATAIN), + PHONE_DATAIN), USBEndpointDescriptor_BULK, - MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(DATAIN), + MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(PHONE_DATAIN), USBEndpointDescriptor_MAXBULKSIZE_FS), 0 /* Must be 0 for full-speed bulk endpoints */ }, @@ -221,9 +221,9 @@ const SIMTraceDriverConfigurationDescriptorSniffer configurationDescriptorSniffe { sizeof(USBEndpointDescriptor), USBGenericDescriptor_ENDPOINT, - USBEndpointDescriptor_ADDRESS( USBEndpointDescriptor_IN, INT ), + USBEndpointDescriptor_ADDRESS( USBEndpointDescriptor_IN, PHONE_INT ), USBEndpointDescriptor_INTERRUPT, - MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(INT), + MIN(BOARD_USB_ENDPOINTS_MAXPACKETSIZE(PHONE_INT), USBEndpointDescriptor_MAXINTERRUPTSIZE_FS), 0x10 } |