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Fix iClass dump truncating the AA2 area and improve dump reliability by fixing cmd retry delays.

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nvx 2023-11-26 18:39:36 +10:00
commit 7b0ca43695
2 changed files with 24 additions and 16 deletions
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8
armsrc/iclass.c
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@ -1254,6 +1254,12 @@ static bool iclass_send_cmd_with_retries(uint8_t *cmd, size_t cmdsize, uint8_t *
if (res == PM3_SUCCESS && expected_size == resp_len) {
return true;
}
// Timed out waiting for the tag to reply, but perhaps the tag did hear the command and is attempting to reply
// So wait long enough for the tag to encode it's reply plus required frame delays on each side before retrying
// And then double it, because in practice it seems to make it much more likely to succeed
// Response time calculation from expected_size lifted from GetIso15693AnswerFromTag
*start_time = *eof_time + ((DELAY_ICLASS_VICC_TO_VCD_READER + DELAY_ISO15693_VCD_TO_VICC_READER + (expected_size * 8 * 8 * 16)) * 2);
}
return false;
}
@ -1739,7 +1745,7 @@ void iClass_Dump(uint8_t *msg) {
} PACKED response;
response.isOK = dumpsuccess;
response.block_cnt = i;
response.block_cnt = i - cmd->start_block;
response.bb_offset = dataout - BigBuf_get_addr();
reply_ng(CMD_HF_ICLASS_DUMP, PM3_SUCCESS, (uint8_t *)&response, sizeof(response));
}