FIX: Coverity, Out-of-bounds. In the loop, variable i, can...

[proxmark3-svn] / client / cmdhfmfu.c

diff --git a/client/cmdhfmfu.c b/client/cmdhfmfu.c
index 48f549ba8334f4ecbd0fb97180c120ace6a73993..25a073d34440b2de98b3c56d67597dbc2df14111 100644 (file)
--- a/client/cmdhfmfu.c
+++ b/client/cmdhfmfu.c
@@ -57,13 +57,13 @@ uint8_t default_pwd_pack[KEYS_PWD_COUNT][4] = {
        {0x32,0x0C,0x16,0x17}, // PACK 0x80,0x80 -- AMiiboo (sniffed) 
 };
 
-#define MAX_UL_TYPES 17
-uint16_t UL_TYPES_ARRAY[MAX_UL_TYPES] = {UNKNOWN, UL, UL_C, UL_EV1_48, UL_EV1_128, NTAG, NTAG_203,
-           NTAG_210, NTAG_212, NTAG_213, NTAG_215, NTAG_216, MY_D, MY_D_NFC, MY_D_MOVE, MY_D_MOVE_NFC, MY_D_MOVE_LEAN};
+#define MAX_UL_TYPES 18
+uint32_t UL_TYPES_ARRAY[MAX_UL_TYPES] = {UNKNOWN, UL, UL_C, UL_EV1_48, UL_EV1_128, NTAG, NTAG_203,
+           NTAG_210, NTAG_212, NTAG_213, NTAG_215, NTAG_216, MY_D, MY_D_NFC, MY_D_MOVE, MY_D_MOVE_NFC, MY_D_MOVE_LEAN, FUDAN_UL};
 
 uint8_t UL_MEMORY_ARRAY[MAX_UL_TYPES] = {MAX_UL_BLOCKS, MAX_UL_BLOCKS, MAX_ULC_BLOCKS, MAX_ULEV1a_BLOCKS,
            MAX_ULEV1b_BLOCKS, MAX_NTAG_203, MAX_NTAG_203, MAX_NTAG_210, MAX_NTAG_212, MAX_NTAG_213,
-           MAX_NTAG_215, MAX_NTAG_216, MAX_UL_BLOCKS, MAX_MY_D_NFC, MAX_MY_D_MOVE, MAX_MY_D_MOVE, MAX_MY_D_MOVE_LEAN};
+           MAX_NTAG_215, MAX_NTAG_216, MAX_UL_BLOCKS, MAX_MY_D_NFC, MAX_MY_D_MOVE, MAX_MY_D_MOVE, MAX_MY_D_MOVE_LEAN, MAX_UL_BLOCKS};
 
 
 static int CmdHelp(const char *Cmd);
@@ -276,6 +276,38 @@ static int ulev1_readSignature( uint8_t *response, uint16_t responseLength ){
        return len;
 }
 
+
+// Fudan check checks for which error is given for a command with incorrect crc
+// NXP UL chip responds with 01, fudan 00.
+// other possible checks:
+//  send a0 + crc 
+//  UL responds with 00, fudan doesn't respond
+//  or
+//  send a200 + crc
+//  UL doesn't respond, fudan responds with 00
+//  or
+//  send 300000 + crc (read with extra byte(s))
+//  UL responds with read of page 0, fudan doesn't respond.
+//
+// make sure field is off before calling this function
+static int ul_fudan_check( void ){
+       iso14a_card_select_t card;
+       if ( !ul_select(&card) ) 
+               return UL_ERROR;
+
+       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_RAW | ISO14A_NO_DISCONNECT, 4, 0}};
+
+       uint8_t cmd[4] = {0x30,0x00,0x02,0xa7}; //wrong crc on purpose  should be 0xa8
+       memcpy(c.d.asBytes, cmd, 4);
+       clearCommandBuffer();
+       SendCommand(&c);
+       UsbCommand resp;
+       if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)) return UL_ERROR;
+       if (resp.arg[0] != 1) return UL_ERROR;
+
+       return (!resp.d.asBytes[0]) ? FUDAN_UL : UL; //if response == 0x00 then Fudan, else Genuine NXP
+}
+
 static int ul_print_default( uint8_t *data){
 
        uint8_t uid[7];
@@ -389,6 +421,8 @@ int ul_print_type(uint32_t tagtype, uint8_t spaces){
                PrintAndLog("%sTYPE : INFINEON my-d\x99 move NFC (SLE 66R01P)", spacer);
        else if ( tagtype & MY_D_MOVE_LEAN )
                PrintAndLog("%sTYPE : INFINEON my-d\x99 move lean (SLE 66R01L)", spacer);
+       else if ( tagtype & FUDAN_UL )
+               PrintAndLog("%sTYPE : FUDAN Ultralight Compatible (or other compatible) %s", spacer, (tagtype & MAGIC) ? "<magic>" : "" );
        else
                PrintAndLog("%sTYPE : Unknown %06x", spacer, tagtype);
        return 0;
@@ -622,6 +656,10 @@ uint32_t GetHF14AMfU_Type(void){
                                ul_switch_off_field();
                        }
                }
+               if (tagtype & UL) {
+                       tagtype = ul_fudan_check(); 
+                       ul_switch_off_field();
+               }
        } else {
                ul_switch_off_field();
                // Infinition MY-D tests   Exam high nibble 
@@ -870,10 +908,6 @@ int CmdHF14AMfUWrBl(const char *Cmd){
        uint8_t authenticationkey[16] = {0x00};
        uint8_t *authKeyPtr = authenticationkey;
 
-       // starting with getting tagtype
-       TagTypeUL_t tagtype = GetHF14AMfU_Type();
-       if (tagtype == UL_ERROR) return -1;
-
        while(param_getchar(Cmd, cmdp) != 0x00)
        {
                switch(param_getchar(Cmd, cmdp))
@@ -905,21 +939,10 @@ int CmdHF14AMfUWrBl(const char *Cmd){
                        case 'b':
                        case 'B':
                                blockNo = param_get8(Cmd, cmdp+1);
-                               
-                               uint8_t maxblockno = 0;
-                               for (uint8_t idx = 0; idx < MAX_UL_TYPES; idx++){
-                                       if (tagtype & UL_TYPES_ARRAY[idx])
-                                               maxblockno = UL_MEMORY_ARRAY[idx];
-                               }
-               
                                if (blockNo < 0) {
                                        PrintAndLog("Wrong block number");
                                        errors = true;
                                }
-                               if (blockNo > maxblockno){
-                                       PrintAndLog("block number too large. Max block is %u/0x%02X \n", maxblockno,maxblockno);
-                                       errors = true;
-                               }
                                cmdp += 2;
                                break;
                        case 'l':
@@ -946,6 +969,19 @@ int CmdHF14AMfUWrBl(const char *Cmd){
        }
 
        if ( blockNo == -1 ) return usage_hf_mfu_wrbl();
+       // starting with getting tagtype
+       TagTypeUL_t tagtype = GetHF14AMfU_Type();
+       if (tagtype == UL_ERROR) return -1;
+
+       uint8_t maxblockno = 0;
+       for (uint8_t idx = 0; idx < MAX_UL_TYPES; idx++){
+               if (tagtype & UL_TYPES_ARRAY[idx])
+                       maxblockno = UL_MEMORY_ARRAY[idx];
+       }
+       if (blockNo > maxblockno){
+               PrintAndLog("block number too large. Max block is %u/0x%02X \n", maxblockno,maxblockno);
+               return usage_hf_mfu_wrbl();
+       }
 
        // Swap endianness 
        if (swapEndian && hasAuthKey) authKeyPtr = SwapEndian64(authenticationkey, 16, 8);
@@ -997,10 +1033,6 @@ int CmdHF14AMfURdBl(const char *Cmd){
        uint8_t authenticationkey[16] = {0x00};
        uint8_t *authKeyPtr = authenticationkey;
 
-       // starting with getting tagtype
-       TagTypeUL_t tagtype = GetHF14AMfU_Type();
-       if (tagtype == UL_ERROR) return -1;
-
        while(param_getchar(Cmd, cmdp) != 0x00)
        {
                switch(param_getchar(Cmd, cmdp))
@@ -1032,21 +1064,10 @@ int CmdHF14AMfURdBl(const char *Cmd){
                        case 'b':
                        case 'B':
                                blockNo = param_get8(Cmd, cmdp+1);
-
-                               uint8_t maxblockno = 0;
-                               for (uint8_t idx = 0; idx < MAX_UL_TYPES; idx++){
-                                       if (tagtype & UL_TYPES_ARRAY[idx])
-                                               maxblockno = UL_MEMORY_ARRAY[idx];
-                               }
-
                                if (blockNo < 0) {
                                        PrintAndLog("Wrong block number");
                                        errors = true;
                                }
-                               if (blockNo > maxblockno){
-                                       PrintAndLog("block number to large. Max block is %u/0x%02X \n", maxblockno,maxblockno);
-                                       errors = true;
-                               }
                                cmdp += 2;
                                break;
                        case 'l':
@@ -1064,6 +1085,19 @@ int CmdHF14AMfURdBl(const char *Cmd){
        }
 
        if ( blockNo == -1 ) return usage_hf_mfu_rdbl();
+       // start with getting tagtype
+       TagTypeUL_t tagtype = GetHF14AMfU_Type();
+       if (tagtype == UL_ERROR) return -1;
+
+       uint8_t maxblockno = 0;
+       for (uint8_t idx = 0; idx < MAX_UL_TYPES; idx++){
+               if (tagtype & UL_TYPES_ARRAY[idx])
+                       maxblockno = UL_MEMORY_ARRAY[idx];
+       }
+       if (blockNo > maxblockno){
+               PrintAndLog("block number to large. Max block is %u/0x%02X \n", maxblockno,maxblockno);
+               return usage_hf_mfu_rdbl();
+       }
 
        // Swap endianness 
        if (swapEndian && hasAuthKey) authKeyPtr = SwapEndian64(authenticationkey, 16, 8);