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chg: 'lf t55xx chk' - refactored to use loadDictionary

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This commit is contained in:
iceman1001 2019-03-26 16:18:40 +01:00
parent 52be3f4fe5
commit 9133a9164f
2 changed files with 21 additions and 65 deletions
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81
client/cmdlft55xx.c
View file

@ -1625,17 +1625,14 @@ bool IsCancelled(void) {
return false;
}
// load a default pwd file.
int CmdT55xxChkPwds(const char *Cmd) {
// load a default pwd file.
char line[9];
char filename[FILE_PATH_SIZE] = {0};
int keycnt = 0;
uint8_t stKeyBlock = 20;
uint8_t *keyBlock = NULL, *p = NULL;
bool found = false;
uint8_t timeout = 0;
memset(line, 0, sizeof(line));
uint8_t *keyBlock = NULL;
char cmdp = tolower(param_getchar(Cmd, 0));
if (strlen(Cmd) == 0 || cmdp == 'h') return usage_t55xx_chk();
@ -1688,78 +1685,37 @@ int CmdT55xxChkPwds(const char *Cmd) {
goto out;
}
keyBlock = calloc(stKeyBlock, 4);
if (keyBlock == NULL) return 1;
if (cmdp == 'i') {
int len = strlen(Cmd + 2);
if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
memcpy(filename, Cmd + 2, len);
FILE *f = fopen(filename, "r");
if (!f) {
PrintAndLogEx(FAILED, "File: " _YELLOW_("%s") ": not found or locked.", filename);
free(keyBlock);
uint16_t keycount = 0;
size_t datalen = 0;
// TODO, a way of reallocating memory if file was larger
keyBlock = calloc(4*200, sizeof(uint8_t));
if ( keyBlock == NULL ) {
PrintAndLogDevice(WARNING, "error, cannot allocate memory ");
return 1;
}
while (fgets(line, sizeof(line), f)) {
if (strlen(line) < 8 || line[7] == '\n') continue;
//goto next line
while (fgetc(f) != '\n' && !feof(f)) ;
//The line start with # is comment, skip
if (line[0] == '#') continue;
if (!isxdigit(line[0])) {
PrintAndLogEx(WARNING, "File content error. '%s' must include 8 HEX symbols", line);
continue;
}
line[8] = 0;
// realloc keyblock array size.
if (stKeyBlock - keycnt < 2) {
p = realloc(keyBlock, 4 * (stKeyBlock += 10));
if (!p) {
PrintAndLogEx(WARNING, "Cannot allocate memory for defaultKeys");
free(keyBlock);
if (f)
fclose(f);
return 2;
}
keyBlock = p;
}
// clear mem
memset(keyBlock + 4 * keycnt, 0, 4);
num_to_bytes(strtoll(line, NULL, 16), 4, keyBlock + 4 * keycnt);
// PrintAndLogEx(NORMAL, "chk custom pwd[%2d] %08X", keycnt, bytes_to_num(keyBlock + 4 * keycnt, 4) );
keycnt++;
memset(line, 0, sizeof(line));
}
if (f)
fclose(f);
if (keycnt == 0) {
int res = loadFileDICTIONARY(filename, "dic", keyBlock, &datalen, 4, &keycount );
if (res || keycount == 0) {
PrintAndLogEx(WARNING, "No keys found in file");
free(keyBlock);
return 1;
}
PrintAndLogEx(SUCCESS, "Loaded %d keys", keycnt);
// loop
uint64_t testpwd = 0x00;
for (uint16_t c = 0; c < keycnt; ++c) {
for (uint16_t c = 0; c < keycount; ++c) {
if (IsOffline()) {
PrintAndLogEx(WARNING, "Device offline\n");
free(keyBlock);
return 2;
return 2;
}
if (IsCancelled()) {
@ -1780,7 +1736,6 @@ int CmdT55xxChkPwds(const char *Cmd) {
return 0;
}
*/
found = tryDetectModulation();
if (found)
break;

5
client/cmdlft55xx.h
View file

@ -24,7 +24,9 @@
#include "cmdlf.h"
#include "util.h"
#include "lfdemod.h"
#include "cmdhf14a.h" //for getTagInfo
#include "cmdhf14a.h" // for getTagInfo
#include "loclass/fileutils.h" // loadDictionary
#define T55x7_CONFIGURATION_BLOCK 0x00
#define T55x7_PAGE0 0x00
@ -162,7 +164,6 @@ extern bool tryDetectP1(bool getData);
bool test(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t clk, bool *Q5);
int special(const char *Cmd);
bool AquireData(uint8_t page, uint8_t block, bool pwdmode, uint32_t password);
//bool AquireDataEx(uint8_t page, uint8_t block, bool pwdmode, uint32_t password, uint32_t timing) ;
bool detectPassword(int password);