Add DS cart ROM dumping

TWL sectors not yet read, but TWL ROMs can still be dumped
This commit is contained in:
RocketRobz 2020-01-29 18:02:06 -07:00
parent e850fd8733
commit 81dfdef103
8 changed files with 1093 additions and 2 deletions

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@ -31,6 +31,8 @@
#include "screenshot.h"
#include "driveOperations.h"
#include "fileOperations.h"
#include "read_card.h"
#include "tonccpy.h"
#define SCREEN_COLS 32
#define ENTRIES_PER_SCREEN 22
@ -45,11 +47,138 @@ bool flashcardMountSkipped = true;
static bool flashcardMountRan = true;
static bool dmTextPrinted = false;
static int dmCursorPosition = 0;
static int dmAssignedOp[3] = {-1};
static int dmAssignedOp[4] = {-1};
static int dmMaxCursors = -1;
static u8 gbaFixedValue = 0;
static tNDSHeader* ndsCardHeader = (tNDSHeader*)0x02000000;
void ndsCardDump(void) {
int pressed = 0;
printf ("\x1b[0;27H");
printf ("\x1B[42m"); // Print green color
printf ("_____"); // Clear time
consoleInit(NULL, 1, BgType_Text4bpp, BgSize_T_256x256, 15, 0, false, true);
printf ("\x1B[47m"); // Print foreground white color
printf("Dump NDS card ROM to\n");
printf("\"%s:/gm9i/out\"?\n", (sdMounted ? "sd" : "fat"));
printf("(<A> yes, <Y> trim, <B> no)");
while (true) {
// Power saving loop. Only poll the keys once per frame and sleep the CPU if there is nothing else to do
do {
scanKeys();
pressed = keysDownRepeat();
swiWaitForVBlank();
} while (!(pressed & KEY_A) && !(pressed & KEY_Y) && !(pressed & KEY_B));
if ((pressed & KEY_A) || (pressed & KEY_Y)) {
consoleClear();
sysSetCardOwner (BUS_OWNER_ARM9); // Allow arm9 to access NDS cart
if (!flashcardMounted && isDSiMode()) {
// Reset card slot
disableSlot1();
for(int i = 0; i < 25; i++) { swiWaitForVBlank(); }
enableSlot1();
for(int i = 0; i < 15; i++) { swiWaitForVBlank(); }
}
char folderPath[2][256];
sprintf(folderPath[0], "%s:/gm9i", (sdMounted ? "sd" : "fat"));
sprintf(folderPath[1], "%s:/gm9i/out", (sdMounted ? "sd" : "fat"));
if (access(folderPath[0], F_OK) != 0) {
printf("Creating directory...");
mkdir(folderPath[0], 0777);
}
if (access(folderPath[1], F_OK) != 0) {
printf ("\x1b[0;0H");
printf("Creating directory...");
mkdir(folderPath[1], 0777);
}
consoleClear();
// Read header
u32 cardID = 0;
if (cardInit (ndsCardHeader, &cardID) == 0) {
printf("Dumping...\n");
printf("Do not remove the NDS card.\n");
} else {
printf("Unable to dump the ROM.\n");
for (int i = 0; i < 60*2; i++) {
swiWaitForVBlank();
}
}
char gameTitle[13] = {0};
tonccpy(gameTitle, ndsCardHeader->gameTitle, 12);
char gameCode[7] = {0};
tonccpy(gameCode, ndsCardHeader->gameCode, 6);
bool trimRom = (pressed & KEY_Y);
u32 romBuffer[0x200/sizeof(u32)];
char destPath[256];
sprintf(destPath, "%s:/gm9i/out/%s_%s_%x%s.nds", (sdMounted ? "sd" : "fat"), gameTitle, gameCode, ndsCardHeader->romversion, (trimRom ? "_trim" : ""));
//char destSavPath[256];
//sprintf(destSavPath, "fat:/gm9i/out/%s_%s%s_%x.sav", gbaHeaderGameTitle, gbaHeaderGameCode, gbaHeaderMakerCode, gbaHeaderSoftwareVersion);
// Determine ROM size
u32 romSize = 0;
if (trimRom) {
romSize = ndsCardHeader->romSize;
} else switch (ndsCardHeader->deviceSize) {
case 0x00:
romSize = 0x20000;
break;
case 0x01:
romSize = 0x40000;
break;
case 0x02:
romSize = 0x80000;
break;
case 0x03:
romSize = 0x100000;
break;
case 0x04:
romSize = 0x200000;
break;
case 0x05:
romSize = 0x400000;
break;
case 0x06:
romSize = 0x800000;
break;
case 0x07:
romSize = 0x1000000;
break;
case 0x08:
romSize = 0x2000000;
break;
case 0x09:
romSize = 0x4000000;
break;
case 0x0A:
romSize = 0x8000000;
break;
case 0x0B:
romSize = 0x10000000;
break;
case 0x0C:
romSize = 0x20000000;
break;
}
// Dump!
remove(destPath);
FILE* destinationFile = fopen(destPath, "wb");
for (u32 src = 0; src < romSize; src += 0x200) {
cardRead (src, romBuffer, 0x200);
fwrite(romBuffer, 1, 0x200, destinationFile);
}
fclose(destinationFile);
break;
}
if (pressed & KEY_B) {
break;
}
}
}
void gbaCartDump(void) {
int pressed = 0;
@ -185,6 +314,8 @@ void dm_drawTopScreen(void) {
iprintf ("\x1b[%d;29H", i + ENTRIES_START_ROW);
printf ("[x]");
}
} else if (dmAssignedOp[i] == 4) {
printf ("NDS GAMECARD");
}
}
}
@ -243,6 +374,9 @@ void dm_drawBottomScreen(void) {
} else if (dmAssignedOp[dmCursorPosition] == 3) {
printf ("[nitro:] NDS GAME IMAGE\n");
printf ("(Game Virtual)");
} else if (dmAssignedOp[dmCursorPosition] == 4) {
printf ("NDS GAMECARD\n");
printf ("(NDS Game)");
}
}
@ -255,7 +389,7 @@ void driveMenu (void) {
gbaFixedValue = *(u8*)(0x080000B2);
}
for (int i = 0; i < 3; i++) {
for (int i = 0; i < 4; i++) {
dmAssignedOp[i] = -1;
}
dmMaxCursors = -1;
@ -266,6 +400,9 @@ void driveMenu (void) {
if (flashcardMounted) {
dmMaxCursors++;
dmAssignedOp[dmMaxCursors] = 1;
} else {
dmMaxCursors++;
dmAssignedOp[dmMaxCursors] = 4;
}
if (!isDSiMode() && isRegularDS) {
dmMaxCursors++;
@ -357,6 +494,9 @@ void driveMenu (void) {
screenMode = 1;
break;
}
} else if (dmAssignedOp[dmCursorPosition] == 4) {
dmTextPrinted = false;
ndsCardDump();
}
}

111
arm9/source/encryption.c Normal file
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@ -0,0 +1,111 @@
/*
NitroHax -- Cheat tool for the Nintendo DS
Copyright (C) 2008 Michael "Chishm" Chisholm
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include "encryption.h"
#include "key1.h"
#include "tonccpy.h"
#define KEYSIZE 0x1048
static u32 keycode [3];
static u32 keybuf [KEYSIZE/sizeof(u32)];
void crypt_64bit_up (u32* ptr) {
u32 x = ptr[1];
u32 y = ptr[0];
u32 z;
int i;
for (i = 0; i < 0x10; i++) {
z = keybuf[i] ^ x;
x = keybuf[0x012 + ((z>>24)&0xff)];
x = keybuf[0x112 + ((z>>16)&0xff)] + x;
x = keybuf[0x212 + ((z>> 8)&0xff)] ^ x;
x = keybuf[0x312 + ((z>> 0)&0xff)] + x;
x = y ^ x;
y = z;
}
ptr[0] = x ^ keybuf[0x10];
ptr[1] = y ^ keybuf[0x11];
}
void crypt_64bit_down (u32* ptr) {
u32 x = ptr[1];
u32 y = ptr[0];
u32 z;
int i;
for (i = 0x11; i > 0x01; i--) {
z = keybuf[i] ^ x;
x = keybuf[0x012 + ((z>>24)&0xff)];
x = keybuf[0x112 + ((z>>16)&0xff)] + x;
x = keybuf[0x212 + ((z>> 8)&0xff)] ^ x;
x = keybuf[0x312 + ((z>> 0)&0xff)] + x;
x = y ^ x;
y = z;
}
ptr[0] = x ^ keybuf[0x01];
ptr[1] = y ^ keybuf[0x00];
}
static u32 bswap_32bit (u32 in) {
u8 a,b,c,d;
a = (u8)((in >> 0) & 0xff);
b = (u8)((in >> 8) & 0xff);
c = (u8)((in >> 16) & 0xff);
d = (u8)((in >> 24) & 0xff);
u32 out = (a << 24) | (b << 16) | (c << 8) | (d << 0);
return out;
}
void apply_keycode (u32 modulo) {
u32 scratch[2];
int i;
modulo = modulo / sizeof(*keycode);
crypt_64bit_up (&keycode[1]);
crypt_64bit_up (&keycode[0]);
toncset (scratch, 0, 8);
for (i = 0; i < 0x12; i+=1) {
keybuf[i] = keybuf[i] ^ bswap_32bit (keycode[i % modulo]);
}
for (i = 0; i < 0x412; i+=2) {
crypt_64bit_up (scratch);
keybuf[i] = scratch[1];
keybuf[i+1] = scratch[0];
}
}
void init_keycode (u32 idcode, u32 level, u32 modulo) {
tonccpy ((u8*)keybuf, gEncrData, KEYSIZE);
keycode[0] = idcode;
keycode[1] = idcode/2;
keycode[2] = idcode*2;
if (level >= 1) apply_keycode (modulo); // first apply (always)
if (level >= 2) apply_keycode (modulo); // second apply (optional)
keycode[1] = keycode[1] * 2;
keycode[2] = keycode[2] / 2;
if (level >= 3) apply_keycode (modulo); // third apply (optional)
}

27
arm9/source/encryption.h Normal file
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@ -0,0 +1,27 @@
/*
NitroHax -- Cheat tool for the Nintendo DS
Copyright (C) 2008 Michael "Chishm" Chisholm
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ENCRYPTION_H
#define ENCRYPTION_H
#include <nds/ndstypes.h>
void init_keycode (u32 idcode, u32 level, u32 modulo);
void crypt_64bit_down (u32* ptr);
void crypt_64bit_up (u32* ptr);
#endif

264
arm9/source/key1.h Normal file
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@ -0,0 +1,264 @@
const unsigned char gEncrData[] =
{
0x99,0xD5,0x20,0x5F,0x57,0x44,0xF5,0xB9,0x6E,0x19,0xA4,0xD9,0x9E,0x6A,0x5A,0x94,
0xD8,0xAE,0xF1,0xEB,0x41,0x75,0xE2,0x3A,0x93,0x82,0xD0,0x32,0x33,0xEE,0x31,0xD5,
0xCC,0x57,0x61,0x9A,0x37,0x06,0xA2,0x1B,0x79,0x39,0x72,0xF5,0x55,0xAE,0xF6,0xBE,
0x5F,0x1B,0x69,0xFB,0xE5,0x9D,0xF1,0xE9,0xCE,0x2C,0xD9,0xA1,0x5E,0x32,0x05,0xE6,
0xFE,0xD3,0xFE,0xCF,0xD4,0x62,0x04,0x0D,0x8B,0xF5,0xEC,0xB7,0x2B,0x60,0x79,0xBB,
0x12,0x95,0x31,0x0D,0x6E,0x3F,0xDA,0x2B,0x88,0x84,0xF0,0xF1,0x3D,0x12,0x7E,0x25,
0x45,0x22,0xF1,0xBB,0x24,0x06,0x1A,0x06,0x11,0xAD,0xDF,0x28,0x8B,0x64,0x81,0x34,
0x2B,0xEB,0x33,0x29,0x99,0xAA,0xF2,0xBD,0x9C,0x14,0x95,0x9D,0x9F,0xF7,0xF5,0x8C,
0x72,0x97,0xA1,0x29,0x9D,0xD1,0x5F,0xCF,0x66,0x4D,0x07,0x1A,0xDE,0xD3,0x4A,0x4B,
0x85,0xC9,0xA7,0xA3,0x17,0x95,0x05,0x3A,0x3D,0x49,0x0A,0xBF,0x0A,0x89,0x8B,0xA2,
0x4A,0x82,0x49,0xDD,0x27,0x90,0xF1,0x0B,0xE9,0xEB,0x1C,0x6A,0x83,0x76,0x45,0x05,
0xBA,0x81,0x70,0x61,0x17,0x3F,0x4B,0xDE,0xAE,0xCF,0xAB,0x39,0x57,0xF2,0x3A,0x56,
0x48,0x11,0xAD,0x8A,0x40,0xE1,0x45,0x3F,0xFA,0x9B,0x02,0x54,0xCA,0xA6,0x93,0xFB,
0xEF,0x4D,0xFE,0x6F,0xA3,0xD8,0x87,0x9C,0x08,0xBA,0xD5,0x48,0x6A,0x8D,0x2D,0xFD,
0x6E,0x15,0xF8,0x74,0xBD,0xBE,0x52,0x8B,0x18,0x22,0x8A,0x9E,0xFB,0x74,0x37,0x07,
0x1B,0x36,0x6C,0x4A,0x19,0xBA,0x42,0x62,0xB9,0x79,0x91,0x10,0x7B,0x67,0x65,0x96,
0xFE,0x02,0x23,0xE8,0xEE,0x99,0x8C,0x77,0x3E,0x5C,0x86,0x64,0x4D,0x6D,0x78,0x86,
0xA5,0x4F,0x65,0xE2,0x1E,0xB2,0xDF,0x5A,0x0A,0xD0,0x7E,0x08,0x14,0xB0,0x71,0xAC,
0xBD,0xDB,0x83,0x1C,0xB9,0xD7,0xA1,0x62,0xCD,0xC6,0x63,0x7C,0x52,0x69,0xC3,0xE6,
0xBF,0x75,0xCE,0x12,0x44,0x5D,0x21,0x04,0xFA,0xFB,0xD3,0x3C,0x38,0x11,0x63,0xD4,
0x95,0x85,0x41,0x49,0x46,0x09,0xF2,0x08,0x43,0x11,0xDC,0x1F,0x76,0xC0,0x15,0x6D,
0x1F,0x3C,0x63,0x70,0xEA,0x87,0x80,0x6C,0xC3,0xBD,0x63,0x8B,0xC2,0x37,0x21,0x37,
0xDC,0xEE,0x09,0x23,0x2E,0x37,0x6A,0x4D,0x73,0x90,0xF7,0x50,0x30,0xAC,0x1C,0x92,
0x04,0x10,0x23,0x91,0x4F,0xD2,0x07,0xAA,0x68,0x3E,0x4F,0x9A,0xC9,0x64,0x60,0x6A,
0xC8,0x14,0x21,0xF3,0xD6,0x22,0x41,0x12,0x44,0x24,0xCF,0xE6,0x8A,0x56,0xDD,0x0D,
0x53,0x4D,0xE1,0x85,0x1E,0x8C,0x52,0x5A,0x9C,0x19,0x84,0xC2,0x03,0x57,0xF1,0x6F,
0xE3,0x00,0xBE,0x58,0xF6,0x4C,0xED,0xD5,0x21,0x64,0x9C,0x1F,0xBE,0x55,0x03,0x3C,
0x4A,0xDC,0xFF,0xAA,0xC9,0xDA,0xE0,0x5D,0x5E,0xBF,0xE6,0xDE,0xF5,0xD8,0xB1,0xF8,
0xFF,0x36,0xB3,0xB9,0x62,0x67,0x95,0xDB,0x31,0x5F,0x37,0xED,0x4C,0x70,0x67,0x99,
0x90,0xB5,0x18,0x31,0x6C,0x3D,0x99,0x99,0xE4,0x42,0xDA,0xD3,0x25,0x42,0x13,0xA0,
0xAE,0xD7,0x70,0x6C,0xB1,0x55,0xCF,0xC7,0xD7,0x46,0xD5,0x43,0x61,0x17,0x3D,0x44,
0x28,0xE9,0x33,0x85,0xD5,0xD0,0xA2,0x93,0xAA,0x25,0x12,0x1F,0xFB,0xC5,0x0B,0x46,
0xF5,0x97,0x76,0x56,0x45,0xA6,0xBE,0x87,0xB1,0x94,0x6B,0xE8,0xB1,0xFE,0x33,0x99,
0xAE,0x1F,0x3E,0x6C,0x39,0x71,0x1D,0x09,0x00,0x90,0x37,0xE4,0x10,0x3E,0x75,0x74,
0xFF,0x8C,0x83,0x3B,0xB0,0xF1,0xB0,0xF9,0x01,0x05,0x47,0x42,0x95,0xF1,0xD6,0xAC,
0x7E,0x38,0xE6,0x9E,0x95,0x74,0x26,0x3F,0xB4,0x68,0x50,0x18,0xD0,0x43,0x30,0xB4,
0x4C,0x4B,0xE3,0x68,0xBF,0xE5,0x4D,0xB6,0x95,0x8B,0x0A,0xA0,0x74,0x25,0x32,0x77,
0xCF,0xA1,0xF7,0x2C,0xD8,0x71,0x13,0x5A,0xAB,0xEA,0xC9,0x51,0xE8,0x0D,0xEE,0xEF,
0xE9,0x93,0x7E,0x19,0xA7,0x1E,0x43,0x38,0x81,0x16,0x2C,0xA1,0x48,0xE3,0x73,0xCC,
0x29,0x21,0x6C,0xD3,0x5D,0xCE,0xA0,0xD9,0x61,0x71,0x43,0xA0,0x15,0x13,0xB5,0x64,
0x92,0xCF,0x2A,0x19,0xDC,0xAD,0xB7,0xA5,0x9F,0x86,0x65,0xF8,0x1A,0x9F,0xE7,0xFB,
0xF7,0xFD,0xB8,0x13,0x6C,0x27,0xDB,0x6F,0xDF,0x35,0x1C,0xF7,0x8D,0x2C,0x5B,0x9B,
0x12,0xAB,0x38,0x64,0x06,0xCC,0xDE,0x31,0xE8,0x4E,0x75,0x11,0x64,0xE3,0xFA,0xEA,
0xEB,0x34,0x54,0xC2,0xAD,0x3F,0x34,0xEB,0x93,0x2C,0x7D,0x26,0x36,0x9D,0x56,0xF3,
0x5A,0xE1,0xF6,0xB3,0x98,0x63,0x4A,0x9E,0x32,0x83,0xE4,0x9A,0x84,0x60,0x7D,0x90,
0x2E,0x13,0x0E,0xEE,0x93,0x4B,0x36,0xA2,0x85,0xEC,0x16,0x38,0xE8,0x88,0x06,0x02,
0xBF,0xF0,0xA0,0x3A,0xED,0xD7,0x6A,0x9A,0x73,0xE1,0x57,0xCF,0xF8,0x44,0xB8,0xDC,
0x2E,0x23,0x59,0xD1,0xDF,0x95,0x52,0x71,0x99,0x61,0xA0,0x4B,0xD5,0x7F,0x6E,0x78,
0xBA,0xA9,0xC5,0x30,0xD3,0x40,0x86,0x32,0x9D,0x32,0x0C,0x9C,0x37,0xB7,0x02,0x2F,
0xBA,0x54,0x98,0xA9,0xC4,0x13,0x04,0xC9,0x8D,0xBE,0xC8,0xE7,0x5D,0x97,0x50,0x2E,
0x93,0xD6,0x22,0x59,0x0C,0x27,0xBC,0x22,0x92,0xE0,0xA7,0x20,0x0F,0x93,0x6F,0x7F,
0x4C,0x9F,0xD3,0xB5,0xA6,0x2A,0x0B,0x74,0x67,0x49,0x7D,0x10,0x26,0xCB,0xD1,0xC5,
0x86,0x71,0xE7,0x8C,0xA0,0x9C,0xE9,0x5B,0xB2,0x1A,0xF6,0x01,0xEE,0x8C,0x9E,0x5E,
0x83,0xF2,0x1A,0xDB,0xE6,0xE5,0xEA,0x84,0x59,0x76,0xD2,0x7C,0xF6,0x8D,0xA5,0x49,
0x36,0x48,0xC2,0x16,0x52,0xBB,0x83,0xA3,0x74,0xB9,0x07,0x0C,0x3B,0xFF,0x61,0x28,
0xE1,0x61,0xE9,0xE4,0xEF,0x6E,0x15,0xAA,0x4E,0xBA,0xE8,0x5D,0x05,0x96,0xBB,0x32,
0x56,0xB0,0xFB,0x72,0x52,0x0F,0x0E,0xC8,0x42,0x25,0x65,0x76,0x89,0xAF,0xF2,0xDE,
0x10,0x27,0xF0,0x01,0x4B,0x74,0xA7,0x97,0x07,0xD5,0x26,0x54,0x54,0x09,0x1F,0x82,
0x0A,0x86,0x7D,0x30,0x39,0x0E,0xB3,0x26,0x9B,0x0B,0x57,0xBB,0x36,0x06,0x31,0xAF,
0xFD,0x79,0xFC,0xD9,0x30,0x10,0x2B,0x0C,0xB3,0xE1,0x9B,0xD7,0x7B,0xDC,0x5F,0xEF,
0xD2,0xF8,0x13,0x45,0x4D,0x47,0x75,0xBD,0x46,0x96,0x3C,0x7E,0x75,0xF3,0x3E,0xB5,
0x67,0xC5,0x9A,0x3B,0xB0,0x5B,0x29,0x6B,0xDE,0x80,0x5B,0xC8,0x15,0x05,0xB1,0x31,
0xB6,0xCE,0x49,0xDD,0xAD,0x84,0xB5,0xAE,0x60,0xDC,0x67,0x31,0x34,0x30,0xFE,0x4E,
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0xF8,0x36,0xB1,0xF2,0xF0,0x22,0x58,0x5D,0x45,0x6B,0xBD,0xA0,0xBB,0xB2,0x88,0x42,
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0x04,0x2D,0x4F,0x55,0x51,0x16,0xFD,0x7E,0x79,0xE8,0xBE,0xC1,0xF2,0x12,0xD4,0xF8,
0xB4,0x84,0x05,0x23,0xA0,0xCC,0xD2,0x2B,0xFD,0xE1,0xAB,0xAD,0x0D,0xD1,0x55,0x6C,
0x23,0x41,0x94,0x4D,0x77,0x37,0x4F,0x05,0x28,0x0C,0xBF,0x17,0xB3,0x12,0x67,0x6C,
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0x89,0x15,0x95,0xE8,0xB4,0x4B,0x9D,0xF8,0x75,0xE3,0x9F,0x60,0x78,0x5B,0xD6,0xE6,
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0x85,0x80,0xF7,0xDF,0x3C,0x80,0x22,0xE1,0x94,0xDA,0xDE,0x24,0xC6,0xB0,0x7A,0x39,
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0xD4,0x53,0xF2,0xD9,0x00,0x0F,0xD0,0xDD,0x99,0x6E,0x19,0xA6,0x0A,0xD0,0xEC,0x5B,
0x58,0x24,0xAB,0xC0,0xCB,0x06,0x65,0xEC,0x1A,0x13,0x38,0x94,0x0A,0x67,0x03,0x2F,
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0x83,0x27,0xED,0xFC,0x9B,0x1A,0x18,0xBC,0xF9,0x8B,0xAE,0xDC,0x24,0xAB,0x50,0x38,
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0xF6,0xAF,0x87,0xA2,0x5B,0x01,0x3F,0x32,0x92,0x47,0x95,0x9A,0x72,0xA5,0x32,0x3D,
0xAE,0x6B,0xD0,0x9B,0x07,0xD2,0x49,0x92,0xE3,0x78,0x4A,0xFA,0xA1,0x06,0x7D,0xF2,
0x41,0xCF,0x77,0x74,0x04,0x14,0xB2,0x0C,0x86,0x84,0x64,0x16,0xD5,0xBB,0x51,0xA1,
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0xC5,0xD8,0xBE,0x76,0x3D,0xF6,0x5F,0x7E,0xE7,0x2A,0x8B,0x88,0x24,0x1B,0x38,0x3F,
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0x45,0xF6,0xE0,0xDA,0x2F,0x34,0x59,0x53,0xFB,0x20,0x3C,0x52,0x62,0x5E,0x35,0xB5,
0x62,0xFE,0x8B,0x60,0x63,0xE3,0x86,0x5A,0x15,0x1A,0x6E,0xD1,0x47,0x45,0xBC,0x32,
0xB4,0xEB,0x67,0x38,0xAB,0xE4,0x6E,0x33,0x3A,0xB5,0xED,0xA3,0xAD,0x67,0xE0,0x4E,
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0x9F,0xEA,0x73,0xF5,0xD7,0x89,0xC0,0x4C,0xF4,0xFB,0xF4,0x2D,0xEC,0x14,0x1B,0x51,
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0x7D,0xC1,0xA9,0xBA,0xCD,0xC1,0xB4,0x07,0xE4,0xE1,0x68,0x86,0x43,0xB2,0x6D,0x38,
0xF3,0xFB,0x0C,0x5C,0x66,0x37,0x71,0xDE,0x56,0xEF,0x6E,0xA0,0x10,0x40,0x65,0xA7,
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0x05,0x17,0x76,0x02,0x1C,0x4F,0x52,0xAA,0x5F,0xC1,0xC6,0xA0,0x56,0xB9,0xD8,0x04,
0x84,0x44,0x4D,0xA7,0x59,0xD8,0xDE,0x60,0xE6,0x38,0x0E,0x05,0x8F,0x03,0xE1,0x3B,
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0x1D,0xE4,0x44,0x47,0xB8,0x5E,0xFA,0xE3,0x78,0x84,0x55,0x42,0x4B,0x48,0x5E,0xF7,
0x7D,0x47,0x35,0x86,0x1D,0x2B,0x43,0x05,0x03,0xEC,0x8A,0xB8,0x1E,0x06,0x3C,0x76,
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0xEC,0xFB,0x3C,0x83,0xB2,0x95,0x44,0xEF,0xD8,0x54,0x51,0x4E,0x2D,0x11,0x44,0x1D,
0xFB,0x36,0x59,0x1E,0x7A,0x34,0xC1,0xC3,0xCA,0x57,0x00,0x61,0xEA,0x67,0xA5,0x16,
0x9B,0x55,0xD0,0x55,0xE1,0x7F,0xD9,0x36,0xD2,0x40,0x76,0xAE,0xDC,0x01,0xCE,0xB0,
0x7A,0x83,0xD5,0xCB,0x20,0x98,0xEC,0x6B,0xC1,0x72,0x92,0x34,0xF3,0x82,0x57,0x37,
0x62,0x8A,0x32,0x36,0x0C,0x90,0x43,0xAE,0xAE,0x5C,0x9B,0x78,0x8E,0x13,0x65,0x02,
0xFD,0x68,0x71,0xC1,0xFE,0xB0,0x31,0xA0,0x24,0x82,0xB0,0xC3,0xB1,0x79,0x69,0xA7,
0xF5,0xD2,0xEB,0xD0,0x82,0xC0,0x32,0xDC,0x9E,0xC7,0x26,0x3C,0x6D,0x8D,0x98,0xC1,
0xBB,0x22,0xD4,0xD0,0x0F,0x33,0xEC,0x3E,0xB9,0xCC,0xE1,0xDC,0x6A,0x4C,0x77,0x36,
0x14,0x1C,0xF9,0xBF,0x81,0x9F,0x28,0x5F,0x71,0x85,0x32,0x29,0x90,0x75,0x48,0xC4,
0xB3,0x4A,0xCE,0xD8,0x44,0x8F,0x14,0x2F,0xFD,0x40,0x57,0xEF,0xAA,0x08,0x75,0xD9,
0x46,0xD1,0xD6,0x6E,0x32,0x55,0x1F,0xC3,0x18,0xFE,0x84,0x1F,0xFC,0x84,0xD5,0xFF,
0x71,0x5E,0x1B,0x48,0xC3,0x86,0x95,0x0E,0x28,0x08,0x27,0xD3,0x38,0x83,0x71,0x7B,
0x4C,0x80,0x63,0x54,0x9A,0x56,0xB0,0xAC,0xCF,0x80,0xCA,0x31,0x09,0xEF,0xFE,0xF3,
0xBE,0xAF,0x24,0x7E,0xA6,0xFE,0x53,0x3F,0xC2,0x8D,0x4A,0x33,0x68,0xD1,0x22,0xA6,
0x66,0xAD,0x7B,0xEA,0xDE,0xB6,0x43,0xB0,0xA1,0x25,0x95,0x00,0xA3,0x3F,0x75,0x46,
0x14,0x11,0x44,0xEC,0xD7,0x95,0xBC,0x92,0xF0,0x4F,0xA9,0x16,0x53,0x62,0x97,0x60,
0x2A,0x0F,0x41,0xF1,0x71,0x24,0xBE,0xEE,0x94,0x7F,0x08,0xCD,0x60,0x93,0xB3,0x85,
0x5B,0x07,0x00,0x3F,0xD8,0x0F,0x28,0x83,0x9A,0xD1,0x69,0x9F,0xD1,0xDA,0x2E,0xC3,
0x90,0x01,0xA2,0xB9,0x6B,0x4E,0x2A,0x66,0x9D,0xDA,0xAE,0xA6,0xEA,0x2A,0xD3,0x68,
0x2F,0x0C,0x0C,0x9C,0xD2,0x8C,0x4A,0xED,0xE2,0x9E,0x57,0x65,0x9D,0x09,0x87,0xA3,
0xB4,0xC4,0x32,0x5D,0xC9,0xD4,0x32,0x2B,0xB1,0xE0,0x71,0x1E,0x64,0x4D,0xE6,0x90,
0x71,0xE3,0x1E,0x40,0xED,0x7D,0xF3,0x84,0x0E,0xED,0xC8,0x78,0x76,0xAE,0xC0,0x71,
0x27,0x72,0xBB,0x05,0xEA,0x02,0x64,0xFB,0xF3,0x48,0x6B,0xB5,0x42,0x93,0x3F,0xED,
0x9F,0x13,0x53,0xD2,0xF7,0xFE,0x2A,0xEC,0x1D,0x47,0x25,0xDB,0x3C,0x91,0x86,0xC6,
0x8E,0xF0,0x11,0xFD,0x23,0x74,0x36,0xF7,0xA4,0xF5,0x9E,0x7A,0x7E,0x53,0x50,0x44,
0xD4,0x47,0xCA,0xD3,0xEB,0x38,0x6D,0xE6,0xD9,0x71,0x94,0x7F,0x4A,0xC6,0x69,0x4B,
0x11,0xF4,0x52,0xEA,0x22,0xFE,0x8A,0xB0,0x36,0x67,0x8B,0x59,0xE8,0xE6,0x80,0x2A,
0xEB,0x65,0x04,0x13,0xEE,0xEC,0xDC,0x9E,0x5F,0xB1,0xEC,0x05,0x6A,0x59,0xE6,0x9F,
0x5E,0x59,0x6B,0x89,0xBF,0xF7,0x1A,0xCA,0x44,0xF9,0x5B,0x6A,0x71,0x85,0x03,0xE4,
0x29,0x62,0xE0,0x70,0x6F,0x41,0xC4,0xCF,0xB2,0xB1,0xCC,0xE3,0x7E,0xA6,0x07,0xA8,
0x87,0xE7,0x7F,0x84,0x93,0xDB,0x52,0x4B,0x6C,0xEC,0x7E,0xDD,0xD4,0x24,0x48,0x10,
0x69,0x9F,0x04,0x60,0x74,0xE6,0x48,0x18,0xF3,0xE4,0x2C,0xB9,0x4F,0x2E,0x50,0x7A,
0xDF,0xD4,0x54,0x69,0x2B,0x8B,0xA7,0xF3,0xCE,0xFF,0x1F,0xF3,0x3E,0x26,0x01,0x39,
0x17,0x95,0x84,0x89,0xB0,0xF0,0x4C,0x4B,0x82,0x91,0x9F,0xC4,0x4B,0xAC,0x9D,0xA5,
0x74,0xAF,0x17,0x25,0xC9,0xCA,0x32,0xD3,0xBC,0x89,0x8A,0x84,0x89,0xCC,0x0D,0xAE,
0x7C,0xA2,0xDB,0x9C,0x6A,0x78,0x91,0xEE,0xEA,0x76,0x5D,0x4E,0x87,0x60,0xF5,0x69,
0x15,0x67,0xD4,0x02,0xCF,0xAF,0x48,0x36,0x07,0xEA,0xBF,0x6F,0x66,0x2D,0x06,0x8F,
0xC4,0x9A,0xFE,0xF9,0xF6,0x90,0x87,0x75,0xB8,0xF7,0xAD,0x0F,0x76,0x10,0x5A,0x3D,
0x59,0xB0,0x2E,0xB3,0xC7,0x35,0x2C,0xCC,0x70,0x56,0x2B,0xCB,0xE3,0x37,0x96,0xC5,
0x2F,0x46,0x1B,0x8A,0x22,0x46,0xC7,0x88,0xA7,0x26,0x32,0x98,0x61,0xDF,0x86,0x22,
0x8A,0xF4,0x1C,0x2F,0x87,0xA1,0x09,0xAA,0xCC,0xA9,0xAE,0xD3,0xBD,0x00,0x45,0x1C,
0x9A,0x54,0x87,0x86,0x52,0x87,0xEF,0xFF,0x1E,0x8F,0xA1,0x8F,0xC1,0x89,0x5C,0x35,
0x1B,0xDA,0x2D,0x3A,0x2C,0x16,0xB2,0xC2,0xF1,0x56,0xE2,0x78,0xC1,0x6B,0x63,0x97,
0xC5,0x56,0x8F,0xC9,0x32,0x7F,0x2C,0xAA,0xAF,0xA6,0xA8,0xAC,0x20,0x91,0x22,0x88,
0xDE,0xE4,0x60,0x8B,0xF9,0x4B,0x42,0x25,0x1A,0xE3,0x7F,0x9C,0x2C,0x19,0x89,0x3A,
0x7E,0x05,0xD4,0x36,0xCC,0x69,0x58,0xC2,0xC1,0x32,0x8B,0x2F,0x90,0x85,0xEB,0x7A,
0x39,0x50,0xA5,0xA1,0x27,0x92,0xC5,0x66,0xB0,0x20,0x4F,0x58,0x7E,0x55,0x83,0x43,
0x2B,0x45,0xE2,0x9C,0xE4,0xD8,0x12,0x90,0x2C,0x16,0x83,0x56,0x16,0x79,0x03,0xB3,
0xAD,0x2D,0x61,0x18,0x1A,0x13,0x1F,0x37,0xE2,0xE1,0x9C,0x73,0x7B,0x80,0xD5,0xFD,
0x2D,0x51,0x87,0xFC,0x7B,0xAA,0xD7,0x1F,0x2C,0x7A,0x8E,0xAF,0xF4,0x8D,0xBB,0xCD,
0x95,0x11,0x7C,0x72,0x0B,0xEE,0x6F,0xE2,0xB9,0xAF,0xDE,0x37,0x83,0xDE,0x8C,0x8D,
0x62,0x05,0x67,0xB7,0x96,0xC6,0x8D,0x56,0xB6,0x0D,0xD7,0x62,0xBA,0xD6,0x46,0x36,
0xBD,0x8E,0xC8,0xE6,0xEA,0x2A,0x6C,0x10,0x14,0xFF,0x6B,0x5B,0xFA,0x82,0x3C,0x46,
0xB1,0x30,0x43,0x46,0x51,0x8A,0x7D,0x9B,0x92,0x3E,0x83,0x79,0x5B,0x55,0x5D,0xB2,
0x6C,0x5E,0xCE,0x90,0x62,0x8E,0x53,0x98,0xC9,0x0D,0x6D,0xE5,0x2D,0x57,0xCD,0xC5,
0x81,0x57,0xBA,0xE1,0xE8,0xB8,0x8F,0x72,0xE5,0x4F,0x13,0xDC,0xEA,0x9D,0x71,0x15,
0x10,0xB2,0x11,0x88,0xD5,0x09,0xD4,0x7F,0x5B,0x65,0x7F,0x2C,0x3B,0x38,0x4C,0x11,
0x68,0x50,0x8D,0xFB,0x9E,0xB0,0x59,0xBF,0x94,0x80,0x89,0x4A,0xC5,0x1A,0x18,0x12,
0x89,0x53,0xD1,0x4A,0x10,0x29,0xE8,0x8C,0x1C,0xEC,0xB6,0xEA,0x46,0xC7,0x17,0x8B,
0x25,0x15,0x31,0xA8,0xA2,0x6B,0x43,0xB1,0x9D,0xE2,0xDB,0x0B,0x87,0x9B,0xB0,0x11,
0x04,0x0E,0x71,0xD2,0x29,0x77,0x89,0x82,0x0A,0x66,0x41,0x7F,0x1D,0x0B,0x48,0xFF,
0x72,0xBB,0x24,0xFD,0xC2,0x48,0xA1,0x9B,0xFE,0x7B,0x7F,0xCE,0x88,0xDB,0x86,0xD9,
0x85,0x3B,0x1C,0xB0,0xDC,0xA8,0x33,0x07,0xBF,0x51,0x2E,0xE3,0x0E,0x9A,0x00,0x97,
0x1E,0x06,0xC0,0x97,0x43,0x9D,0xD8,0xB6,0x45,0xC4,0x86,0x67,0x5F,0x00,0xF8,0x88,
0x9A,0xA4,0x52,0x9E,0xC7,0xAA,0x8A,0x83,0x75,0xEC,0xC5,0x18,0xAE,0xCE,0xC3,0x2F,
0x1A,0x2B,0xF9,0x18,0xFF,0xAE,0x1A,0xF5,0x53,0x0B,0xB5,0x33,0x51,0xA7,0xFD,0xE8,
0xA8,0xE1,0xA2,0x64,0xB6,0x22,0x17,0x43,0x80,0xCC,0x0A,0xD8,0xAE,0x3B,0xBA,0x40,
0xD7,0xD9,0x92,0x4A,0x89,0xDF,0x04,0x10,0xEE,0x9B,0x18,0x2B,0x6A,0x77,0x69,0x8A,
0x68,0xF4,0xF9,0xB9,0xA2,0x21,0x15,0x6E,0xE6,0x1E,0x3B,0x03,0x62,0x30,0x9B,0x60,
0x41,0x7E,0x25,0x9B,0x9E,0x8F,0xC5,0x52,0x10,0x08,0xF8,0xC2,0x69,0xA1,0x21,0x11,
0x88,0x37,0x5E,0x79,0x35,0x66,0xFF,0x10,0x42,0x18,0x6E,0xED,0x97,0xB6,0x6B,0x1C,
0x4E,0x36,0xE5,0x6D,0x7D,0xB4,0xE4,0xBF,0x20,0xB9,0xE0,0x05,0x3A,0x69,0xD5,0xB8,
0xE3,0xD5,0xDC,0xE0,0xB9,0xAC,0x53,0x3E,0x07,0xA4,0x57,0xAD,0x77,0xFF,0x48,0x18,
0x76,0x2A,0xAC,0x49,0x2A,0x8E,0x47,0x75,0x6D,0x9F,0x67,0x63,0x30,0x35,0x8C,0x39,
0x05,0x39,0xD5,0x6F,0x64,0x3A,0x5B,0xAD,0xCA,0x0B,0xBB,0x82,0x52,0x99,0x45,0xB1,
0x93,0x36,0x36,0x99,0xAF,0x13,0x20,0x44,0x36,0xD8,0x02,0x44,0x09,0x39,0x92,0x85,
0xFF,0x4A,0x4A,0x97,0x87,0xA6,0x63,0xD7,0xC7,0xB5,0xB5,0x24,0xED,0x0F,0xB4,0x6F,
0x0C,0x58,0x52,0x14,0xD9,0xA6,0x7B,0xD3,0x79,0xBC,0x38,0x58,0xA1,0xBD,0x3B,0x84,
0x06,0xD8,0x1A,0x06,0xFD,0x6B,0xA8,0xEA,0x4B,0x69,0x28,0x04,0x37,0xAD,0x82,0x99,
0xFB,0x0E,0x1B,0x85,0xBD,0xA8,0x5D,0x73,0xCD,0xDC,0x58,0x75,0x0A,0xBE,0x63,0x6C,
0x48,0xE7,0x4C,0xE4,0x30,0x2B,0x04,0x60,0xB9,0x15,0xD8,0xDA,0x86,0x81,0x75,0x8F,
0x96,0xD4,0x8D,0x1C,0x5D,0x70,0x85,0x7C,0x1C,0x67,0x7B,0xD5,0x08,0x67,0xA6,0xCE,
0x4B,0x0A,0x66,0x70,0xB7,0xE5,0x63,0xD4,0x5B,0x8A,0x82,0xEA,0x10,0x67,0xCA,0xE2,
0xF4,0xEF,0x17,0x85,0x2F,0x2A,0x5F,0x8A,0x97,0x82,0xF8,0x6A,0xD6,0x34,0x10,0xEA,
0xEB,0xC9,0x5C,0x3C,0xE1,0x49,0xF8,0x46,0xEB,0xDE,0xBD,0xF6,0xA9,0x92,0xF1,0xAA,
0xA6,0xA0,0x18,0xB0,0x3A,0xD3,0x0F,0x1F,0xF3,0x6F,0xFF,0x31,0x45,0x43,0x44,0xD3,
0x50,0x9A,0xF7,0x88,0x09,0x96,0xC1,0xCE,0x76,0xCC,0xF2,0x2C,0x2C,0xBA,0xAD,0x82,
0x77,0x8F,0x18,0x84,0xC0,0xD2,0x07,0x9C,0x36,0x90,0x83,0x4E,0x0B,0xA5,0x4F,0x43,
0x3E,0x04,0xAB,0x78,0x4F,0xD6,0xFB,0x09,0x01,0x24,0x90,0xDA,0x6F,0x3C,0x3A,0x61,
0x0D,0x7F,0x69,0x4A,0xEB,0x2B,0x30,0x02,0xB4,0xDB,0xE0,0x84,0xA9,0xEC,0xD7,0x35,
0xBF,0x37,0x7D,0x85,0x58,0xCE,0xA9,0x4E,0xE4,0x80,0xC7,0xA8,0xD3,0x30,0x67,0x48,
0xEB,0x29,0xAF,0x2F,0x74,0x6A,0xB4,0xA7,0x3F,0x0F,0x3F,0x92,0xAF,0xF3,0xCA,0xAC,
0xAF,0x4B,0xD9,0x94,0xC0,0x43,0xCA,0x81,0x0D,0x2F,0x48,0xA1,0xB0,0x27,0xD5,0xD2,
0xEF,0x4B,0x05,0x85,0xA3,0xDE,0x4D,0x93,0x30,0x3C,0xF0,0xBB,0x4A,0x8F,0x30,0x27,
0x4C,0xEB,0xE3,0x3E,0x64,0xED,0x9A,0x2F,0x3B,0xF1,0x82,0xF0,0xBA,0xF4,0xCF,0x7F,
0x40,0xCB,0xB0,0xE1,0x7F,0xBC,0xAA,0x57,0xD3,0xC9,0x74,0xF2,0xFA,0x43,0x0D,0x22,
0xD0,0xF4,0x77,0x4E,0x93,0xD7,0x85,0x70,0x1F,0x99,0xBF,0xB6,0xDE,0x35,0xF1,0x30,
0xA7,0x5E,0x71,0xF0,0x6B,0x01,0x2D,0x7B,0x64,0xF0,0x33,0x53,0x0A,0x39,0x88,0xF3,
0x6B,0x3A,0xA6,0x6B,0x35,0xD2,0x2F,0x43,0xCD,0x02,0xFD,0xB5,0xE9,0xBC,0x5B,0xAA,
0xD8,0xA4,0x19,0x7E,0x0E,0x5D,0x94,0x81,0x9E,0x6F,0x77,0xAD,0xD6,0x0E,0x74,0x93,
0x96,0xE7,0xC4,0x18,0x5F,0xAD,0xF5,0x19,
};

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arm9/source/read_card.c Normal file
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/*
NitroHax -- Cheat tool for the Nintendo DS
Copyright (C) 2008 Michael "Chishm" Chisholm
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "read_card.h"
#include <nds.h>
#include <nds/arm9/cache.h>
#include <nds/dma.h>
#include <nds/card.h>
#include <string.h>
#include "encryption.h"
#include "tonccpy.h"
enum {
ERR_NONE = 0x00,
ERR_STS_CLR_MEM = 0x01,
ERR_STS_LOAD_BIN = 0x02,
ERR_STS_HOOK_BIN = 0x03,
ERR_STS_START = 0x04,
// initCard error codes:
ERR_LOAD_NORM = 0x11,
ERR_LOAD_OTHR = 0x12,
ERR_SEC_NORM = 0x13,
ERR_SEC_OTHR = 0x14,
ERR_LOGO_CRC = 0x15,
ERR_HEAD_CRC = 0x16,
} ERROR_CODES;
typedef union
{
char title[4];
u32 key;
} GameCode;
static u32 portFlags = 0;
static u32 headerData[CARD_NDS_HEADER_SIZE/sizeof(u32)] = {0};
static u32 secureAreaData[CARD_SECURE_AREA_SIZE/sizeof(u32)] = {0};
static const u8 cardSeedBytes[] = {0xE8, 0x4D, 0x5A, 0xB1, 0x17, 0x8F, 0x99, 0xD5};
static u32 getRandomNumber(void) {
return 4; // chosen by fair dice roll.
// guaranteed to be random.
}
static void decryptSecureArea (u32 gameCode, u32* secureArea)
{
int i;
init_keycode (gameCode, 2, 8);
crypt_64bit_down (secureArea);
init_keycode (gameCode, 3, 8);
for (i = 0; i < 0x200; i+= 2) {
crypt_64bit_down (secureArea + i);
}
}
static struct {
unsigned int iii;
unsigned int jjj;
unsigned int kkkkk;
unsigned int llll;
unsigned int mmm;
unsigned int nnn;
} key1data;
static void initKey1Encryption (u8* cmdData) {
key1data.iii = getRandomNumber() & 0x00000fff;
key1data.jjj = getRandomNumber() & 0x00000fff;
key1data.kkkkk = getRandomNumber() & 0x000fffff;
key1data.llll = getRandomNumber() & 0x0000ffff;
key1data.mmm = getRandomNumber() & 0x00000fff;
key1data.nnn = getRandomNumber() & 0x00000fff;
cmdData[7] = CARD_CMD_ACTIVATE_BF;
cmdData[6] = (u8) (key1data.iii >> 4);
cmdData[5] = (u8) ((key1data.iii << 4) | (key1data.jjj >> 8));
cmdData[4] = (u8) key1data.jjj;
cmdData[3] = (u8) (key1data.kkkkk >> 16);
cmdData[2] = (u8) (key1data.kkkkk >> 8);
cmdData[1] = (u8) key1data.kkkkk;
cmdData[0] = (u8) getRandomNumber();
}
// Note: cmdData must be aligned on a word boundary
static void createEncryptedCommand (u8 command, u8* cmdData, u32 block)
{
unsigned long iii, jjj;
if (command != CARD_CMD_SECURE_READ) {
block = key1data.llll;
}
if (command == CARD_CMD_ACTIVATE_SEC) {
iii = key1data.mmm;
jjj = key1data.nnn;
} else {
iii = key1data.iii;
jjj = key1data.jjj;
}
cmdData[7] = (u8) (command | (block >> 12));
cmdData[6] = (u8) (block >> 4);
cmdData[5] = (u8) ((block << 4) | (iii >> 8));
cmdData[4] = (u8) iii;
cmdData[3] = (u8) (jjj >> 4);
cmdData[2] = (u8) ((jjj << 4) | (key1data.kkkkk >> 16));
cmdData[1] = (u8) (key1data.kkkkk >> 8);
cmdData[0] = (u8) key1data.kkkkk;
crypt_64bit_up ((u32*)cmdData);
key1data.kkkkk += 1;
}
static void cardDelay (u16 readTimeout) {
/* Using a while loop to check the timeout,
so we have to wait until one before overflow.
This also requires an extra 1 for the timer data.
See GBATek for the normal formula used for card timeout.
*/
TIMER_DATA(0) = 0 - (((readTimeout & 0x3FFF) + 3));
TIMER_CR(0) = TIMER_DIV_256 | TIMER_ENABLE;
while (TIMER_DATA(0) != 0xFFFF);
// Clear out the timer registers
TIMER_CR(0) = 0;
TIMER_DATA(0) = 0;
}
int cardInit (tNDSHeader* ndsHeader, u32* chipID)
{
u32 portFlagsKey1, portFlagsSecRead;
bool normalChip; // As defined by GBAtek, normal chip secure area is accessed in blocks of 0x200, other chip in blocks of 0x1000
u32* secureArea;
int secureBlockNumber;
int i;
u8 cmdData[8] __attribute__ ((aligned));
GameCode* gameCode;
// Dummy command sent after card reset
cardParamCommand (CARD_CMD_DUMMY, 0,
CARD_ACTIVATE | CARD_nRESET | CARD_CLK_SLOW | CARD_BLK_SIZE(1) | CARD_DELAY1(0x1FFF) | CARD_DELAY2(0x3F),
NULL, 0);
// Read the header
cardParamCommand (CARD_CMD_HEADER_READ, 0,
CARD_ACTIVATE | CARD_nRESET | CARD_CLK_SLOW | CARD_BLK_SIZE(1) | CARD_DELAY1(0x1FFF) | CARD_DELAY2(0x3F),
(uint32*)ndsHeader, sizeof(tNDSHeader));
// Check header CRC
if (ndsHeader->headerCRC16 != swiCRC16(0xFFFF, (void*)ndsHeader, 0x15E)) {
return ERR_HEAD_CRC;
}
tonccpy(headerData, ndsHeader, CARD_NDS_HEADER_SIZE);
/*
// Check logo CRC
if (ndsHeader->logoCRC16 != 0xCF56) {
return ERR_LOGO_CRC;
}
*/
// Initialise blowfish encryption for KEY1 commands and decrypting the secure area
gameCode = (GameCode*)ndsHeader->gameCode;
init_keycode (gameCode->key, 2, 8);
// Port 40001A4h setting for normal reads (command B7)
portFlags = ndsHeader->cardControl13 & ~CARD_BLK_SIZE(7);
// Port 40001A4h setting for KEY1 commands (usually 001808F8h)
portFlagsKey1 = CARD_ACTIVATE | CARD_nRESET | (ndsHeader->cardControl13 & (CARD_WR|CARD_CLK_SLOW)) |
((ndsHeader->cardControlBF & (CARD_CLK_SLOW|CARD_DELAY1(0x1FFF))) + ((ndsHeader->cardControlBF & CARD_DELAY2(0x3F)) >> 16));
// 1st Get ROM Chip ID
cardParamCommand (CARD_CMD_HEADER_CHIPID, 0,
(ndsHeader->cardControl13 & (CARD_WR|CARD_nRESET|CARD_CLK_SLOW)) | CARD_ACTIVATE | CARD_BLK_SIZE(7),
chipID, sizeof(u32));
// Adjust card transfer method depending on the most significant bit of the chip ID
normalChip = ((*chipID) & 0x80000000) != 0; // ROM chip ID MSB
if (!normalChip) {
portFlagsKey1 |= CARD_SEC_LARGE;
}
// 3Ciiijjj xkkkkkxx - Activate KEY1 Encryption Mode
initKey1Encryption (cmdData);
cardPolledTransfer((ndsHeader->cardControl13 & (CARD_WR|CARD_nRESET|CARD_CLK_SLOW)) | CARD_ACTIVATE, NULL, 0, cmdData);
// 4llllmmm nnnkkkkk - Activate KEY2 Encryption Mode
createEncryptedCommand (CARD_CMD_ACTIVATE_SEC, cmdData, 0);
if (normalChip) {
cardPolledTransfer(portFlagsKey1, NULL, 0, cmdData);
cardDelay(ndsHeader->readTimeout);
cardPolledTransfer(portFlagsKey1, NULL, 0, cmdData);
} else {
cardPolledTransfer(portFlagsKey1, NULL, 0, cmdData);
}
// Set the KEY2 encryption registers
REG_ROMCTRL = 0;
REG_CARD_1B0 = cardSeedBytes[ndsHeader->deviceType & 0x07] | (key1data.nnn << 15) | (key1data.mmm << 27) | 0x6000;
REG_CARD_1B4 = 0x879b9b05;
REG_CARD_1B8 = key1data.mmm >> 5;
REG_CARD_1BA = 0x5c;
REG_ROMCTRL = CARD_nRESET | CARD_SEC_SEED | CARD_SEC_EN | CARD_SEC_DAT;
// Update the DS card flags to suit KEY2 encryption
portFlagsKey1 |= CARD_SEC_EN | CARD_SEC_DAT;
// 1lllliii jjjkkkkk - 2nd Get ROM Chip ID / Get KEY2 Stream
createEncryptedCommand (CARD_CMD_SECURE_CHIPID, cmdData, 0);
if (normalChip) {
cardPolledTransfer(portFlagsKey1, NULL, 0, cmdData);
cardDelay(ndsHeader->readTimeout);
cardPolledTransfer(portFlagsKey1 | CARD_BLK_SIZE(7), NULL, 0, cmdData);
} else {
cardPolledTransfer(portFlagsKey1 | CARD_BLK_SIZE(7), NULL, 0, cmdData);
}
// 2bbbbiii jjjkkkkk - Get Secure Area Block
secureArea = secureAreaData;
portFlagsSecRead = (ndsHeader->cardControlBF & (CARD_CLK_SLOW|CARD_DELAY1(0x1FFF)|CARD_DELAY2(0x3F)))
| CARD_ACTIVATE | CARD_nRESET | CARD_SEC_EN | CARD_SEC_DAT;
for (secureBlockNumber = 4; secureBlockNumber < 8; secureBlockNumber++) {
createEncryptedCommand (CARD_CMD_SECURE_READ, cmdData, secureBlockNumber);
if (normalChip) {
cardPolledTransfer(portFlagsSecRead, NULL, 0, cmdData);
cardDelay(ndsHeader->readTimeout);
for (i = 8; i > 0; i--) {
cardPolledTransfer(portFlagsSecRead | CARD_BLK_SIZE(1), secureArea, 0x200, cmdData);
secureArea += 0x200/sizeof(u32);
}
} else {
cardPolledTransfer(portFlagsSecRead | CARD_BLK_SIZE(4) | CARD_SEC_LARGE, secureArea, 0x1000, cmdData);
secureArea += 0x1000/sizeof(u32);
}
}
// Alllliii jjjkkkkk - Enter Main Data Mode
createEncryptedCommand (CARD_CMD_DATA_MODE, cmdData, 0);
if (normalChip) {
cardPolledTransfer(portFlagsKey1, NULL, 0, cmdData);
cardDelay(ndsHeader->readTimeout);
cardPolledTransfer(portFlagsKey1, NULL, 0, cmdData);
} else {
cardPolledTransfer(portFlagsKey1, NULL, 0, cmdData);
}
// Now deal with secure area decryption and verification
decryptSecureArea (gameCode->key, secureAreaData);
secureArea = secureAreaData;
if (secureArea[0] == 0x72636e65 /*'encr'*/ && secureArea[1] == 0x6a624f79 /*'yObj'*/) {
// Secure area exists, so just clear the tag
secureArea[0] = 0xe7ffdeff;
secureArea[1] = 0xe7ffdeff;
} else {
// Secure area tag is not there, so destroy the entire secure area
for (i = 0; i < 0x200; i ++) {
*secureArea++ = 0xe7ffdeff;
}
//return normalChip ? ERR_SEC_NORM : ERR_SEC_OTHR;
}
return ERR_NONE;
}
void cardRead (u32 src, u32* dest, size_t size)
{
size_t readSize;
if (src >= 0 && src < 0x200) {
// Read header
readSize = size < CARD_DATA_BLOCK_SIZE ? size : CARD_DATA_BLOCK_SIZE;
tonccpy (dest, (u8*)headerData + src, readSize);
return;
} else if (src < CARD_SECURE_AREA_OFFSET) {
toncset (dest, 0, size);
return;
} else if (src < CARD_DATA_OFFSET) {
// Read data from secure area
readSize = src + size < CARD_DATA_OFFSET ? size : CARD_DATA_OFFSET - src;
tonccpy (dest, (u8*)secureAreaData + src - CARD_SECURE_AREA_OFFSET, readSize);
src += readSize;
dest += readSize/sizeof(*dest);
size -= readSize;
}
while (size > 0) {
readSize = size < CARD_DATA_BLOCK_SIZE ? size : CARD_DATA_BLOCK_SIZE;
cardParamCommand (CARD_CMD_DATA_READ, src,
(portFlags &~CARD_BLK_SIZE(7)) | CARD_ACTIVATE | CARD_nRESET | CARD_BLK_SIZE(1),
dest, readSize);
src += readSize;
dest += readSize/sizeof(*dest);
size -= readSize;
}
}

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/*
NitroHax -- Cheat tool for the Nintendo DS
Copyright (C) 2008 Michael "Chishm" Chisholm
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef READ_CARD_H
#define READ_CARD_H
#include <nds/ndstypes.h>
#include <nds/memory.h>
#include <stdlib.h>
#define CARD_NDS_HEADER_SIZE (0x200)
#define CARD_SECURE_AREA_OFFSET (0x4000)
#define CARD_SECURE_AREA_SIZE (0x4000)
#define CARD_DATA_OFFSET (0x8000)
#define CARD_DATA_BLOCK_SIZE (0x200)
#ifdef __cplusplus
extern "C" {
#endif
int cardInit (tNDSHeader* ndsHeader, u32* chipID);
void cardRead (u32 src, u32* dest, size_t size);
#ifdef __cplusplus
}
#endif
#endif // READ_CARD_H

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#include "tonccpy.h"
//# tonccpy.c
//! VRAM-safe cpy.
/*! This version mimics memcpy in functionality, with
the benefit of working for VRAM as well. It is also
slightly faster than the original memcpy, but faster
implementations can be made.
\param dst Destination pointer.
\param src Source pointer.
\param size Fill-length in bytes.
\note The pointers and size need not be word-aligned.
*/
void tonccpy(void *dst, const void *src, uint size)
{
if(size==0 || dst==0 || src==0)
return;
uint count;
u16 *dst16; // hword destination
u8 *src8; // byte source
// Ideal case: copy by 4x words. Leaves tail for later.
if( ((u32)src|(u32)dst)%4==0 && size>=4)
{
u32 *src32= (u32*)src, *dst32= (u32*)dst;
count= size/4;
uint tmp= count&3;
count /= 4;
// Duff's Device, good friend!
switch(tmp) {
do { *dst32++ = *src32++;
case 3: *dst32++ = *src32++;
case 2: *dst32++ = *src32++;
case 1: *dst32++ = *src32++;
case 0: ; } while(count--);
}
// Check for tail
size &= 3;
if(size == 0)
return;
src8= (u8*)src32;
dst16= (u16*)dst32;
}
else // Unaligned.
{
uint dstOfs= (u32)dst&1;
src8= (u8*)src;
dst16= (u16*)(dst-dstOfs);
// Head: 1 byte.
if(dstOfs != 0)
{
*dst16= (*dst16 & 0xFF) | *src8++<<8;
dst16++;
if(--size==0)
return;
}
}
// Unaligned main: copy by 2x byte.
count= size/2;
while(count--)
{
*dst16++ = src8[0] | src8[1]<<8;
src8 += 2;
}
// Tail: 1 byte.
if(size&1)
*dst16= (*dst16 &~ 0xFF) | *src8;
}
//# toncset.c
//! VRAM-safe memset, internal routine.
/*! This version mimics memset in functionality, with
the benefit of working for VRAM as well. It is also
slightly faster than the original memset.
\param dst Destination pointer.
\param fill Word to fill with.
\param size Fill-length in bytes.
\note The \a dst pointer and \a size need not be
word-aligned. In the case of unaligned fills, \a fill
will be masked off to match the situation.
*/
void __toncset(void *dst, u32 fill, uint size)
{
if(size==0 || dst==0)
return;
uint left= (u32)dst&3;
u32 *dst32= (u32*)(dst-left);
u32 count, mask;
// Unaligned head.
if(left != 0)
{
// Adjust for very small stint.
if(left+size<4)
{
mask= BIT_MASK(size*8)<<(left*8);
*dst32= (*dst32 &~ mask) | (fill & mask);
return;
}
mask= BIT_MASK(left*8);
*dst32= (*dst32 & mask) | (fill&~mask);
dst32++;
size -= 4-left;
}
// Main stint.
count= size/4;
uint tmp= count&3;
count /= 4;
switch(tmp) {
do { *dst32++ = fill;
case 3: *dst32++ = fill;
case 2: *dst32++ = fill;
case 1: *dst32++ = fill;
case 0: ; } while(count--);
}
// Tail
size &= 3;
if(size)
{
mask= BIT_MASK(size*8);
*dst32= (*dst32 &~ mask) | (fill & mask);
}
}

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//# Stuff you may not have yet.
#ifndef TONCCPY_H
#define TONCCPY_H
#ifdef __cplusplus
extern "C" {
#endif
#include <nds/ndstypes.h>
typedef unsigned int uint;
#define BIT_MASK(len) ( (1<<(len))-1 )
static inline u32 quad8(u8 x) { x |= x<<8; return x | x<<16; }
//# Declarations and inlines.
void tonccpy(void *dst, const void *src, uint size);
void __toncset(void *dst, u32 fill, uint size);
static inline void toncset(void *dst, u8 src, uint size);
static inline void toncset16(void *dst, u16 src, uint size);
static inline void toncset32(void *dst, u32 src, uint size);
//! VRAM-safe memset, byte version. Size in bytes.
static inline void toncset(void *dst, u8 src, uint size)
{ __toncset(dst, quad8(src), size); }
//! VRAM-safe memset, halfword version. Size in hwords.
static inline void toncset16(void *dst, u16 src, uint size)
{ __toncset(dst, src|src<<16, size*2); }
//! VRAM-safe memset, word version. Size in words.
static inline void toncset32(void *dst, u32 src, uint size)
{ __toncset(dst, src, size*4); }
#ifdef __cplusplus
}
#endif
#endif