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Add partial byte annotation in Hitag traces

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Example:
[usb] pm3 --> trace load -f traces/lf_HitagS256_dump.trace
[+] loaded 287 bytes from binary file traces/lf_HitagS256_dump.trace
[+] Recorded Activity (TraceLen = 287 bytes)
[?] try `trace list -1 -t ...` to view trace.  Remember the `-1` param
[usb] pm3 --> trace list -1 -t hitags -c
[+] Recorded activity (trace len = 287 bytes)
[=] start = start of start frame end = end of frame. src = source of transfer
[=] Hitag1 / Hitag2 / HitagS - Timings in ETU (8us)

      Start |        End | Src | Data (! denotes parity error)
------------+------------+-----+-----------------------------------------
          0 |          0 | Rdr |18(5)
        117 |        117 | Tag |0f(4) 2c  ab  cc  b3  cf  32  bf [2f]
          0 |          0 | Rdr |00(5) 21  a5  b4  73 [8c]
        117 |        117 | Tag |0f(4) c9  00  00  aa [75]
          0 |          0 | Rdr |0c(4) 00 [ab]
        117 |        117 | Tag |0f(4) 21  a5  b4  73 [53]
          0 |          0 | Rdr |0c(4) 01 [b6]
        117 |        117 | Tag |0f(4) c9  00  00  aa [75]
          0 |          0 | Rdr |0c(4) 02 [91]
        117 |        117 | Tag |0f(4) 48  54  4f  4e [2c]
          0 |          0 | Rdr |0c(4) 03 [8c]
        117 |        117 | Tag |0f(4) 4d  49  4b  52 [1e]
          0 |          0 | Rdr |0c(4) 04 [df]
        117 |        117 | Tag |0f(4) 00  00  00  00 [a6]
          0 |          0 | Rdr |0c(4) 05 [c2]
        117 |        117 | Tag |0f(4) 00  00  00  00 [a6]
          0 |          0 | Rdr |0c(4) 06 [e5]
        117 |        117 | Tag |0f(4) 00  00  00  00 [a6]
          0 |          0 | Rdr |0c(4) 07 [f8]
        117 |        117 | Tag |0f(4) 57  5f  4f  4b [88]
          0 |          0 | Rdr |0c(4) 08 [43]
This commit is contained in:
Philippe Teuwen 2021-12-29 23:40:18 +01:00
commit 323f70ff7a
6 changed files with 57 additions and 23 deletions
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8
armsrc/BigBuf.c
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@ -13,6 +13,7 @@
#include "string.h"
#include "dbprint.h"
#include "pm3_cmd.h"
#include "util.h" // nbytes
extern uint32_t _stack_start[], __bss_end__[];
@ -289,6 +290,13 @@ bool LogTrace_ISO15693(const uint8_t *bytes, uint16_t len, uint32_t ts_start, ui
return LogTrace(bytes, len, ts_start, ts_end, parity, reader2tag);
}
// specific LogTrace function for bitstreams: the partial byte size is stored in first parity byte. E.g. bitstream "1100 00100010" -> partial byte: 4 bits
bool RAMFUNC LogTraceBits(const uint8_t *btBytes, uint16_t bitLen, uint32_t timestamp_start, uint32_t timestamp_end, bool readerToTag) {
uint8_t parity[(nbytes(bitLen) - 1) / 8 + 1];
memset(parity, 0x00, sizeof(parity));
parity[0] = ((bitLen - 1) % 8) + 1;
return LogTrace(btBytes, nbytes(bitLen), timestamp_start, timestamp_end, parity, readerToTag);
}
// Emulator memory
uint8_t emlSet(uint8_t *data, uint32_t offset, uint32_t length) {