diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2021-04-02 16:21:56 +0200 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2021-04-03 23:00:01 +0200 |
| commit | 2d1b5fb437a2035db06f994997c8afdb995d54b2 (patch) | |
| tree | da54aac0007976e592d5188ac3ba55381909ed01 /src | |
| parent | e671b2181224c666a5065b829e4a2fac65bb4e44 (diff) | |
SIM: Option to write sniffed PDU to file
Diffstat (limited to 'src')
| -rw-r--r-- | src/sim/main.c | 7 | ||||
| -rw-r--r-- | src/sim/sniffer.c | 15 |
2 files changed, 20 insertions, 2 deletions
diff --git a/src/sim/main.c b/src/sim/main.c index 91cae4b..17ebb32 100644 --- a/src/sim/main.c +++ b/src/sim/main.c @@ -41,6 +41,7 @@ int num_kanal = 1; sim_sniffer_t sim_sniffer; sim_sim_t sim_sim; +const char *write_pdu_file = NULL; static int quit = 0; static const char *serialdev = "/dev/ttyUSB0"; static int baudrate = 9600; @@ -80,6 +81,8 @@ void print_help(const char *arg0) printf(" Serial device (default = '%s')\n", serialdev); printf(" -b --baud-rate <baud>\n"); printf(" Serial baud rate (default = %d)\n", baudrate); + printf(" -w --write-pdu <filename>\n"); + printf(" Write PDU to file (sniffer only)\n"); printf("\nSIM card simulator options:\n"); printf(" -E --eeprom <name>\n"); printf(" Stores and reads EEPROM data to/from file. The file is stored at\n"); @@ -120,6 +123,7 @@ void add_options(void) option_add('v', "debug", 1); option_add('s', "serial-device", 1); option_add('b', "baud-rate", 1); + option_add('w', "write-pdu", 1); option_add('E', "eeprom", 1); option_add('F', "futln", 1); option_add(OPT_SICHERUNG, "sicherung", 1); @@ -156,6 +160,9 @@ int handle_options(int short_option, int argi, char **argv) case 'b': baudrate = atoi(argv[argi]); break; + case 'w': + write_pdu_file = options_strdup(argv[argi]); + break; case 'E': eeprom_name = options_strdup(argv[argi]); break; diff --git a/src/sim/sniffer.c b/src/sim/sniffer.c index 728af53..f635246 100644 --- a/src/sim/sniffer.c +++ b/src/sim/sniffer.c @@ -26,6 +26,8 @@ #include "sim.h" #include "sniffer.h" +extern const char *write_pdu_file; + /* Layer 7 */ static void rx_icl_sdu(uint8_t *data, int length) @@ -742,9 +744,18 @@ static void rx_char(sim_sniffer_t *sim, uint8_t c) else PDEBUG(DSIM2, DEBUG_INFO, " control unknown 0x%02x\n", sim->block_control); PDEBUG(DSIM2, DEBUG_INFO, " length %d\n", sim->block_length); - if (sim->block_checksum == 0) + if (sim->block_checksum == 0) { + FILE *fp; + if (write_pdu_file && (fp = fopen(write_pdu_file, "a"))) { + int i; + fprintf(fp, "PDU: addr=0x%02x ctrl=0x%02x len=0x%02x data:", sim->block_address, sim->block_control, sim->block_length); + for (i = 0; i < sim->block_length; i++) + fprintf(fp, " 0x%02x", sim->block_data[i]); + fprintf(fp, "\n"); + fclose (fp); + } rx_icl_pdu(sim->block_data, sim->block_length); - else + } else PDEBUG(DSIM2, DEBUG_NOTICE, "Received message with checksum error!\n"); sim->block_state = BLOCK_STATE_ADDRESS; } |