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Change lf t55xx chk -m to read dictionary from spiffs file

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This commit is contained in:
Piotr Rzeszut 2024-12-26 02:52:59 +01:00
commit 2fe0ba57b2
3 changed files with 17 additions and 21 deletions
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27
armsrc/lfops.c
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@ -37,7 +37,8 @@
#include "protocols.h"
#include "pmflash.h"
#include "flashmem.h" // persistence on flash
#include "appmain.h" // print stack
#include "spiffs.h" // spiffs
#include "appmain.h" // print stack
/*
Notes about EM4xxx timings.
@ -2146,29 +2147,31 @@ void T55xx_ChkPwds(uint8_t flags, bool ledcontrol) {
#ifdef WITH_FLASH
BigBuf_Clear_EM();
uint16_t isok = 0;
uint8_t counter[2] = {0x00, 0x00};
isok = Flash_ReadData(DEFAULT_T55XX_KEYS_OFFSET_P(spi_flash_pages64k), counter, sizeof(counter));
if (isok != sizeof(counter))
uint32_t size = 0;
if (exists_in_spiffs(T55XX_KEYS_FILE)) {
size = size_in_spiffs(T55XX_KEYS_FILE);
}
if (size == 0) {
Dbprintf("Spiffs file: %s does not exists or empty.", T55XX_KEYS_FILE);
goto OUT;
}
pwd_count = (uint16_t)(counter[1] << 8 | counter[0]);
pwd_count = size / T55XX_KEY_LENGTH;
if (pwd_count == 0)
goto OUT;
// since flash can report way too many pwds, we need to limit it.
// bigbuff EM size is determined by CARD_MEMORY_SIZE
// a password is 4bytes.
uint16_t pwd_size_available = MIN(CARD_MEMORY_SIZE, pwd_count * 4);
uint16_t pwd_size_available = MIN(CARD_MEMORY_SIZE, pwd_count * T55XX_KEY_LENGTH);
// adjust available pwd_count
pwd_count = pwd_size_available / 4;
pwd_count = pwd_size_available / T55XX_KEY_LENGTH;
isok = Flash_ReadData(DEFAULT_T55XX_KEYS_OFFSET_P(spi_flash_pages64k) + 2, pwds, pwd_size_available);
if (isok != pwd_size_available)
goto OUT;
rdv40_spiffs_read_as_filetype(T55XX_KEYS_FILE, pwds, pwd_size_available, RDV40_SPIFFS_SAFETY_SAFE);
Dbprintf("Password dictionary count " _YELLOW_("%d"), pwd_count);
if (g_dbglevel >= DBG_ERROR) Dbprintf("Loaded %u passwords from spiffs file: %s", pwd_count, T55XX_KEYS_FILE);
#endif