FIX, Coverity, Argument can't be negative. CID# 212322, ftell(f) can be negative...

[proxmark3-svn] / client / cmdhf14b.c

diff --git a/client/cmdhf14b.c b/client/cmdhf14b.c
index a34b00d4b421592fdd4a772c3ab3a6996f0c6549..1263e3a05718384811f98ba26e83384f7c32feb5 100644 (file)
--- a/client/cmdhf14b.c
+++ b/client/cmdhf14b.c
@@ -66,22 +66,21 @@ int CmdSri512Read(const char *Cmd)
  * SRIX4K tags are ISO14443-B modulated memory tags,
  * this command just dumps the contents of the memory/
  */
  * SRIX4K tags are ISO14443-B modulated memory tags,
  * this command just dumps the contents of the memory/
  */

-int CmdSrix4kRead(const char *Cmd)
-{
+int CmdSrix4kRead(const char *Cmd) {

        UsbCommand c = {CMD_READ_SRIX4K_TAG, {strtol(Cmd, NULL, 0), 0, 0}};
        clearCommandBuffer();
        SendCommand(&c);
        return 0;
 }
 
        UsbCommand c = {CMD_READ_SRIX4K_TAG, {strtol(Cmd, NULL, 0), 0, 0}};
        clearCommandBuffer();
        SendCommand(&c);
        return 0;
 }
 

-

 int rawClose(void){
        UsbCommand resp;
        UsbCommand c = {CMD_ISO_14443B_COMMAND, {0, 0, 0}};
        clearCommandBuffer();
        SendCommand(&c);
        if (!WaitForResponseTimeout(CMD_ACK,&resp,1000)) {
 int rawClose(void){
        UsbCommand resp;
        UsbCommand c = {CMD_ISO_14443B_COMMAND, {0, 0, 0}};
        clearCommandBuffer();
        SendCommand(&c);
        if (!WaitForResponseTimeout(CMD_ACK,&resp,1000)) {

-       return 0;       
+               PrintAndLog("Command time-out");
+               return 1;

        }
        return 0;
 }
        }
        return 0;
 }


@@ -804,47 +803,26 @@ int CmdteaSelfTest(const char *Cmd){
        
        SwapEndian64ex(v , 8, 4, v_ptr);
        
        
        SwapEndian64ex(v , 8, 4, v_ptr);
        

-
+       // ENCRYPTION KEY:      

        
        

-       PrintAndLog("Modified Burtle");
-       prng_ctx ctx; // = { 0, 0, 0, 0 };
-       uint32_t num = bytes_to_num(v+1, 4);
-       burtle_init_mod( &ctx, num);
-       PrintAndLog("V   : %X", num);
-       PrintAndLog("BURT: %X", burtle_get_mod( &ctx));
-       PrintAndLog("SIMP: %X", GetSimplePrng(num));
-
-       uint8_t calc[16];
+       uint8_t key[16]  = {0x00};
+       uint8_t keyle[16];
+       uint8_t* key_ptr = keyle;
+       SwapEndian64ex(key , sizeof(key), 4, key_ptr);

        
        

-       for ( uint8_t i=0; i<8; ++i){
-               if ( i%2 == 0) {
-                       calc[0] += v[i];
-                       calc[1] += NibbleHigh( v[i]);
-                       calc[2] += NibbleLow( v[i]);                    
-                       calc[3] ^= v[i];
-                       calc[4] ^= NibbleHigh(v[i]);
-                       calc[5] ^= NibbleLow( v[i]);
-               }                       
-               else {
-                       calc[6] += v[i];
-                       calc[7] += NibbleHigh( v[i]);
-                       calc[8] += NibbleLow( v[i]);                    
-                       calc[9] ^= v[i];
-                       calc[10] ^= NibbleHigh(v[i]);
-                       calc[11] ^= NibbleLow( v[i]);
-               }               
-       }
-       for ( uint8_t i=0; i<4; ++i) calc[12] += v[i];
-       for ( uint8_t i=1; i<5; ++i) calc[13] += v[i];
-       for ( uint8_t i=2; i<6; ++i) calc[14] += v[i];
-       for ( uint8_t i=3; i<7; ++i) calc[15] += v[i];
+       PrintAndLog("TEST LE enc| %s", sprint_hex(v_ptr, 8));
+       
+       tea_decrypt(v_ptr, key_ptr);    
+       PrintAndLog("TEST LE dec | %s", sprint_hex_ascii(v_ptr, 8));
+       
+       tea_encrypt(v_ptr, key_ptr);    
+       tea_encrypt(v_ptr, key_ptr);
+       PrintAndLog("TEST enc2 | %s", sprint_hex_ascii(v_ptr, 8));

 
 

-       PrintAndLog("%s ", sprint_hex(calc, 16) );

        return 0;
 }
 
        return 0;
 }
 

-static command_t CommandTable[] = 
-{
+static command_t CommandTable[] = {

        {"help",        CmdHelp,        1, "This help"},
        {"info",        CmdHF14Binfo,   0, "Find and print details about a 14443B tag"},
        {"list",        CmdHF14BList,   0, "[Deprecated] List ISO 14443B history"},
        {"help",        CmdHelp,        1, "This help"},
        {"info",        CmdHF14Binfo,   0, "Find and print details about a 14443B tag"},
        {"list",        CmdHF14BList,   0, "[Deprecated] List ISO 14443B history"},


@@ -860,14 +838,13 @@ static command_t CommandTable[] =
        {NULL, NULL, 0, NULL}
 };
 
        {NULL, NULL, 0, NULL}
 };
 

-int CmdHF14B(const char *Cmd)
-{
+int CmdHF14B(const char *Cmd) {
+       clearCommandBuffer();

        CmdsParse(CommandTable, Cmd);
        return 0;
 }
 
        CmdsParse(CommandTable, Cmd);
        return 0;
 }
 

-int CmdHelp(const char *Cmd)
-{
+int CmdHelp(const char *Cmd) {

        CmdsHelp(CommandTable);
        return 0;
 }
        CmdsHelp(CommandTable);
        return 0;
 }