u32 DumpHealthAndSafety(u32 param)
{
(void) (param); // param is unused here
PartitionInfo* ctrnand_info = GetPartitionInfo(P_CTRNAND);
TitleListInfo* health = titleList + ((GetUnitPlatform() == PLATFORM_3DS) ? 3 : 4);
TitleListInfo* health_alt = (GetUnitPlatform() == PLATFORM_N3DS) ? titleList + 3 : NULL;
char filename[64];
u32 offset_app[4];
u32 size_app[4];
u32 offset_tmd;
u32 size_tmd;
if ((DebugSeekTitleInNand(&offset_tmd, &size_tmd, offset_app, size_app, health, 4) != 0) && (!health_alt ||
(DebugSeekTitleInNand(&offset_tmd, &size_tmd, offset_app, size_app, health_alt, 4) != 0)))
return 1;
if (OutputFileNameSelector(filename, "hs.app", NULL) != 0)
return 1;
Debug("Dumping & decrypting APP0...");
if (DecryptNandToFile(filename, offset_app[0], size_app[0], ctrnand_info) != 0)
return 1;
if (CryptNcch(filename, 0, 0, 0, NULL) != 0)
return 1;
return 0;
}
u32 InitializeD9()
{
u32 errorlevel = 0; // 0 -> none, 1 -> autopause, 2 -> critical
ClearScreenFull(true, true);
DebugClear();
#ifndef BUILD_NAME
Debug("-- Decrypt9 --");
#else
Debug("-- %s --", BUILD_NAME);
#endif
// a little bit of information about the current menu
if (sizeof(menu)) {
u32 n_submenus = 0;
u32 n_features = 0;
for (u32 m = 0; menu[m].n_entries; m++) {
n_submenus = m;
for (u32 e = 0; e < menu[m].n_entries; e++)
n_features += (menu[m].entries[e].function) ? 1 : 0;
}
Debug("Counting %u submenus and %u features", n_submenus, n_features);
}
Debug("Initializing, hold L+R to pause");
Debug("");
if (InitFS()) {
Debug("Initializing SD card... success");
FileGetData("d9logo.bin", BOT_SCREEN0, 320 * 240 * 3, 0);
memcpy(BOT_SCREEN1, BOT_SCREEN0, 320 * 240 * 3);
if (SetupTwlKey0x03() != 0) // TWL KeyX / KeyY
errorlevel = 2;
if ((GetUnitPlatform() == PLATFORM_N3DS) && (LoadKeyFromFile(0x05, 'Y', NULL) != 0))
errorlevel = (((*(vu32*) 0x101401C0) == 0) || (errorlevel > 1)) ? 2 : 1; // N3DS CTRNAND KeyY
if (LoadKeyFromFile(0x25, 'X', NULL)) // NCCH 7x KeyX
errorlevel = (errorlevel < 1) ? 1 : errorlevel;
if (LoadKeyFromFile(0x18, 'X', NULL)) // NCCH Secure3 KeyX
errorlevel = (errorlevel < 1) ? 1 : errorlevel;
if (LoadKeyFromFile(0x1B, 'X', NULL)) // NCCH Secure4 KeyX
errorlevel = (errorlevel < 1) ? 1 : errorlevel;
Debug("Finalizing Initialization...");
RemainingStorageSpace();
} else {
Debug("Initializing SD card... failed");
errorlevel = 2;
}
Debug("");
Debug("Initialization: %s", (errorlevel == 0) ? "success!" : (errorlevel == 1) ? "partially failed" : "failed!");
if (((~HID_STATE & BUTTON_L1) && (~HID_STATE & BUTTON_R1)) || (errorlevel > 1)) {
Debug("(A to %s)", (errorlevel > 1) ? "exit" : "continue");
while (!(InputWait() & BUTTON_A));
}
return errorlevel;
}
u32 MountRamDrive(void) {
if (mount_state && (mount_state != IMG_RAMDRV))
f_close(&mount_file);
if (GetUnitPlatform() == PLATFORM_3DS) {
ramdrv_buffer = RAMDRV_BUFFER_O3DS;
ramdrv_size = RAMDRV_SIZE_O3DS;
} else {
ramdrv_buffer = RAMDRV_BUFFER_N3DS;
ramdrv_size = RAMDRV_SIZE_N3DS;
}
return (mount_state = IMG_RAMDRV);
}
PartitionInfo* GetPartitionInfo(u32 partition_id)
{
u32 partition_num = 0;
if (partition_id == P_CTRNAND) {
partition_num = (GetUnitPlatform() == PLATFORM_3DS) ? 5 : 6;
} else {
for(; !(partition_id & (1<<partition_num)) && (partition_num < 32); partition_num++);
}
return (partition_num >= 32) ? NULL : &(partitions[partition_num]);
}
u32 NandPadgen()
{
u8* ctrStart = FindNandCtr();
if (ctrStart == NULL)
return 1;
u8 ctr[16] = {0x0};
u32 i = 0;
for(i = 0; i < 16; i++)
ctr[i] = *(ctrStart + (15 - i)); //The CTR is stored backwards in memory.
add_ctr(ctr, 0xB93000); //The CTR stored in memory would theoretically be for NAND block 0, so we need to increment it some.
u32 keyslot = 0x0;
u32 nand_size = 0;
switch (GetUnitPlatform()) {
case PLATFORM_3DS:
keyslot = 0x4;
nand_size = 758;
break;
case PLATFORM_N3DS:
keyslot = 0x5;
nand_size = 1055;
break;
}
Debug("Creating NAND FAT16 xorpad. Size (MB): %u", nand_size);
Debug("Filename: nand.fat16.xorpad");
PadInfo padInfo = {.keyslot = keyslot, .setKeyY = 0, .size_mb = nand_size , .filename = "/nand.fat16.xorpad"};
memcpy(padInfo.CTR, ctr, 16);
u32 result = CreatePad(&padInfo);
if(result == 0) {
Debug("Done!");
return 0;
} else {
return 1;
}
}
u32 CreatePad(PadInfo *info)
{
static const uint8_t zero_buf[16] __attribute__((aligned(16))) = {0};
u8* buffer = BUFFER_ADDRESS;
u32 result = 0;
if (!FileCreate(info->filename, true)) // No DebugFileCreate() here - messages are already given
return 1;
if(info->setKeyY)
setup_aeskey(info->keyslot, AES_BIG_INPUT | AES_NORMAL_INPUT, info->keyY);
use_aeskey(info->keyslot);
u8 ctr[16] __attribute__((aligned(32)));
memcpy(ctr, info->CTR, 16);
u32 size_bytes = info->size_mb * 1024*1024;
for (u32 i = 0; i < size_bytes; i += BUFFER_MAX_SIZE) {
u32 curr_block_size = min(BUFFER_MAX_SIZE, size_bytes - i);
for (u32 j = 0; j < curr_block_size; j+= 16) {
set_ctr(AES_BIG_INPUT | AES_NORMAL_INPUT, ctr);
aes_decrypt((void*)zero_buf, (void*)buffer + j, ctr, 1, AES_CTR_MODE);
add_ctr(ctr, 1);
}
ShowProgress(i, size_bytes);
if (!DebugFileWrite((void*)buffer, curr_block_size, i)) {
result = 1;
break;
}
}
ShowProgress(0, 0);
FileClose();
return result;
}
u32 NandDumper() {
u8* buffer = BUFFER_ADDRESS;
u32 nand_size = (GetUnitPlatform() == PLATFORM_3DS) ? 0x3AF00000 : 0x4D800000;
u32 result = 0;
Debug("Dumping System NAND. Size (MB): %u", nand_size / (1024 * 1024));
if (!DebugFileCreate("/NAND.bin", true))
return 1;
u32 n_sectors = nand_size / NAND_SECTOR_SIZE;
for (u32 i = 0; i < n_sectors; i += SECTORS_PER_READ) {
ShowProgress(i, n_sectors);
sdmmc_nand_readsectors(i, SECTORS_PER_READ, buffer);
if(!DebugFileWrite(buffer, NAND_SECTOR_SIZE * SECTORS_PER_READ, i * NAND_SECTOR_SIZE)) {
result = 1;
break;
}
}
ShowProgress(0, 0);
FileClose();
return result;
}
u32 NandPartitionsDumper() {
u32 ctrnand_offset;
u32 ctrnand_size;
u32 keyslot;
switch (GetUnitPlatform()) {
case PLATFORM_3DS:
ctrnand_offset = 0x0B95CA00;
ctrnand_size = 0x2F3E3600;
keyslot = 0x4;
break;
case PLATFORM_N3DS:
ctrnand_offset = 0x0B95AE00;
ctrnand_size = 0x41D2D200;
keyslot = 0x5;
break;
}
// see: http://3dbrew.org/wiki/Flash_Filesystem
Debug("Dumping firm0.bin: %s!", DumpPartition("firm0.bin", 0x0B130000, 0x00400000, 0x6) == 0 ? "succeeded" : "failed");
Debug("Dumping firm1.bin: %s!", DumpPartition("firm1.bin", 0x0B530000, 0x00400000, 0x6) == 0 ? "succeeded" : "failed");
Debug("Dumping ctrnand.bin: %s!", DumpPartition("ctrnand.bin", ctrnand_offset, ctrnand_size, keyslot) == 0 ? "succeeded" : "failed");
return 0;
}
u32 NcchPadgen(u32 param)
{
(void) (param); // param is unused here
NcchInfo *info = (NcchInfo*)0x20316000;
SeedInfo *seedinfo = (SeedInfo*)0x20400000;
if (CheckKeySlot(0x25, 'X') != 0) {
Debug("slot0x25KeyX not set up");
Debug("7.x crypto will fail on O3DS < 7.x or A9LH");
}
if ((GetUnitPlatform() == PLATFORM_3DS) && (CheckKeySlot(0x18, 'X') != 0)) {
Debug("slot0x18KeyX not set up");
Debug("Secure3 crypto will fail");
}
if (CheckKeySlot(0x1B, 'X') != 0) {
Debug("slot0x1BKeyX not set up");
Debug("Secure4 crypto will fail");
}
if (DebugFileOpen("seeddb.bin")) {
if (!DebugFileRead(seedinfo, 16, 0)) {
FileClose();
return 1;
}
if (!seedinfo->n_entries || seedinfo->n_entries > MAX_ENTRIES) {
FileClose();
Debug("Bad number of seeddb entries");
return 1;
}
if (!DebugFileRead(seedinfo->entries, seedinfo->n_entries * sizeof(SeedInfoEntry), 16)) {
FileClose();
return 1;
}
FileClose();
} else {
Debug("9.x seed crypto will fail");
}
if (!DebugFileOpen("ncchinfo.bin"))
return 1;
if (!DebugFileRead(info, 16, 0)) {
FileClose();
return 1;
}
if (!info->n_entries || info->n_entries > MAX_ENTRIES) {
FileClose();
Debug("Bad number of entries in ncchinfo.bin");
return 1;
}
if (info->ncch_info_version == 0xF0000004) { // ncchinfo v4
if (!DebugFileRead(info->entries, info->n_entries * sizeof(NcchInfoEntry), 16)) {
FileClose();
return 1;
}
} else if (info->ncch_info_version == 0xF0000003) { // ncchinfo v3
// read ncchinfo v3 entry & convert to ncchinfo v4
for (u32 i = 0; i < info->n_entries; i++) {
u8* entry_data = (u8*) (info->entries + i);
if (!DebugFileRead(entry_data, 160, 16 + (160*i))) {
FileClose();
return 1;
}
memmove(entry_data + 56, entry_data + 48, 112);
*(u64*) (entry_data + 48) = 0;
}
} else { // unknown file / ncchinfo version
FileClose();
Debug("Incompatible version ncchinfo.bin");
return 1;
}
FileClose();
Debug("Number of entries: %i", info->n_entries);
for (u32 i = 0; i < info->n_entries; i++) { // check and fix filenames
char* filename = info->entries[i].filename;
if (filename[1] == 0x00) { // convert UTF-16 -> UTF-8
for (u32 j = 1; j < (112 / 2); j++)
filename[j] = filename[j*2];
}
if (memcmp(filename, "sdmc:", 5) == 0) // fix sdmc: prefix
memmove(filename, filename + 5, 112 - 5);
}
for (u32 i = 0; i < info->n_entries; i++) {
PadInfo padInfo = {.setKeyY = 1, .size_mb = info->entries[i].size_mb, .mode = AES_CNT_CTRNAND_MODE};
memcpy(padInfo.ctr, info->entries[i].ctr, 16);
memcpy(padInfo.filename, info->entries[i].filename, 112);
Debug ("%2i: %s (%iMB)", i, info->entries[i].filename, info->entries[i].size_mb);
// workaround to still be able to process old ncchinfo.bin
if ((info->entries[i].ncchFlag7 == 0x01) && info->entries[i].ncchFlag3)
info->entries[i].ncchFlag7 = 0x20; // this combination means seed crypto rather than FixedKey
if (info->entries[i].ncchFlag7 & 0x20) { // seed crypto
u8 keydata[32];
memcpy(keydata, info->entries[i].keyY, 16);
u32 found_seed = 0;
for (u32 j = 0; j < seedinfo->n_entries; j++) {
if (seedinfo->entries[j].titleId == info->entries[i].titleId) {
found_seed = 1;
memcpy(&keydata[16], seedinfo->entries[j].external_seed, 16);
break;
}
}
if (!found_seed) {
Debug("Failed to find seed in seeddb.bin");
return 1;
}
u8 sha256sum[32];
sha_quick(sha256sum, keydata, 32, SHA256_MODE);
memcpy(padInfo.keyY, sha256sum, 16);
} else {
memcpy(padInfo.keyY, info->entries[i].keyY, 16);
}
if (info->entries[i].ncchFlag7 == 0x01) {
u8 zeroKey[16] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
u8 sysKey[16] = {0x52, 0x7C, 0xE6, 0x30, 0xA9, 0xCA, 0x30, 0x5F, 0x36, 0x96, 0xF3, 0xCD, 0xE9, 0x54, 0x19, 0x4B};
setup_aeskey(0x11, (info->entries[i].titleId & ((u64) 0x10 << 32)) ? sysKey : zeroKey);
padInfo.setKeyY = 0;
padInfo.keyslot = 0x11; // fixedKey crypto
} else if (info->entries[i].ncchFlag3 == 0x0A) {
padInfo.keyslot = 0x18; // Secure3 crypto, needs slot0x18KeyX.bin on O3DS
} else if (info->entries[i].ncchFlag3 == 0x0B) {
padInfo.keyslot = 0x1B; // Secure4 crypto, needs slot0x1BKeyX.bin
} else if(info->entries[i].ncchFlag3 >> 8 == 0xDEC0DE) { // magic value to manually specify keyslot
padInfo.keyslot = info->entries[i].ncchFlag3 & 0x3F;
} else if (info->entries[i].ncchFlag3) {
padInfo.keyslot = 0x25; // 7.x crypto
} else {
padInfo.keyslot = 0x2C; // standard crypto
}
Debug("Using keyslot: %02X", padInfo.keyslot);
if (CreatePad(&padInfo) != 0)
return 1; // this can't fail anyways
}
return 0;
}
u32 SdPadgen(u32 param)
{
(void) (param); // param is unused here
SdInfo *info = (SdInfo*) 0x20316000;
// setup AES key from SD
SetupSdKeyY0x34(false, NULL);
if (!DebugFileOpen("SDinfo.bin"))
return 1;
if (!DebugFileRead(info, 4, 0)) {
FileClose();
return 1;
}
if (!info->n_entries || info->n_entries > MAX_ENTRIES) {
FileClose();
Debug("Bad number of entries!");
return 1;
}
if (!DebugFileRead(info->entries, info->n_entries * sizeof(SdInfoEntry), 4)) {
FileClose();
return 1;
}
FileClose();
Debug("Number of entries: %i", info->n_entries);
for(u32 i = 0; i < info->n_entries; i++) {
PadInfo padInfo = {.keyslot = 0x34, .setKeyY = 0, .size_mb = info->entries[i].size_mb, .mode = AES_CNT_CTRNAND_MODE};
memcpy(padInfo.ctr, info->entries[i].ctr, 16);
memcpy(padInfo.filename, info->entries[i].filename, 180);
Debug ("%2i: %s (%iMB)", i, info->entries[i].filename, info->entries[i].size_mb);
if (CreatePad(&padInfo) != 0)
return 1; // this can't fail anyways
}
return 0;
}
u32 SdPadgenDirect(u32 param)
{
(void) (param); // param is unused here
SdInfo *info = (SdInfo*) 0x20316000;
char basepath[256];
u8 movable_keyY[16];
if (SetupSdKeyY0x34(true, movable_keyY) != 0)
return 1; // movable.sed has to be present in NAND
Debug("");
if (SdFolderSelector(basepath, movable_keyY) != 0)
return 1;
Debug("");
if (SdInfoGen(info, basepath) != 0)
return 1;
if (!info->n_entries) {
Debug("Nothing found in folder");
return 1;
}
Debug("Number of entries: %i", info->n_entries);
for(u32 i = 0; i < info->n_entries; i++) {
PadInfo padInfo = {.keyslot = 0x34, .setKeyY = 0, .size_mb = info->entries[i].size_mb, .mode = AES_CNT_CTRNAND_MODE};
memcpy(padInfo.ctr, info->entries[i].ctr, 16);
memcpy(padInfo.filename, info->entries[i].filename, 180);
Debug ("%2i: %s (%iMB)", i, info->entries[i].filename, info->entries[i].size_mb);
if (CreatePad(&padInfo) != 0)
return 1; // this can't fail anyways
}
return 0;
}
u32 AnyPadgen(u32 param)
{
(void) (param); // param is unused here
AnyPadInfo *info = (AnyPadInfo*) 0x20316000;
// get header
if ((FileGetData("anypad.bin", info, 16, 0) != 16) || !info->n_entries || info->n_entries > MAX_ENTRIES) {
Debug("Corrupt or not existing: anypad.bin");
return 1;
}
// get data
u32 data_size = info->n_entries * sizeof(AnyPadInfoEntry);
if (FileGetData("anypad.bin", (u8*) info + 16, data_size, 16) != data_size) {
Debug("File is missing data: anypad.bin");
return 1;
}
Debug("Processing anypad.bin...");
Debug("Number of entries: %i", info->n_entries);
for (u32 i = 0; i < info->n_entries; i++) { // this translates all entries to a standard padInfo struct
AnyPadInfoEntry* entry = &(info->entries[i]);
PadInfo padInfo = {.keyslot = entry->keyslot, .setKeyY = 0, .size_mb = 0, .size_b = entry->size_b, .mode = entry->mode};
memcpy(padInfo.filename, entry->filename, 80);
memcpy(padInfo.ctr, entry->ctr, 16);
// process keys
if (entry->setNormalKey)
setup_aeskey(entry->keyslot, entry->normalKey);
if (entry->setKeyX)
setup_aeskeyX(entry->keyslot, entry->keyX);
if (entry->setKeyY)
setup_aeskeyY(entry->keyslot, entry->keyY);
use_aeskey(entry->keyslot);
// process flags
if (entry->flags & (AP_USE_NAND_CTR|AP_USE_SD_CTR)) {
u32 ctr_add = getbe32(padInfo.ctr + 12);
u8 shasum[32];
u8 cid[16];
sdmmc_get_cid((entry->flags & AP_USE_NAND_CTR) ? 1 : 0, (uint32_t*) cid);
if (entry->mode == AES_CNT_TWLNAND_MODE) {
sha_quick(shasum, cid, 16, SHA1_MODE);
for (u32 i = 0; i < 16; i++)
padInfo.ctr[i] = shasum[15-i];
} else {
sha_quick(shasum, cid, 16, SHA256_MODE);
memcpy(padInfo.ctr, shasum, 16);
}
add_ctr(padInfo.ctr, ctr_add);
}
// create the pad
Debug ("%2i: %s (%ikB)", i, entry->filename, entry->size_b / 1024);
if (CreatePad(&padInfo) != 0)
return 1; // this can't fail anyways
}
return 0;
}
u32 CtrNandPadgen(u32 param)
{
char* filename = (param & PG_FORCESLOT4) ? "nand.fat16.slot0x04.xorpad" : "nand.fat16.xorpad";
u32 keyslot;
u32 nand_size;
// legacy sizes & offset, to work with Python 3DSFAT16Tool
if (GetUnitPlatform() == PLATFORM_3DS) {
if (param & PG_FORCESLOT4) {
Debug("This is a N3DS only feature");
return 1;
}
keyslot = 0x4;
nand_size = 758;
} else {
keyslot = (param & PG_FORCESLOT4) ? 0x4 : 0x5;
nand_size = 1055;
}
Debug("Creating NAND FAT16 xorpad. Size (MB): %u", nand_size);
Debug("Filename: %s", filename);
PadInfo padInfo = {
.keyslot = keyslot,
.setKeyY = 0,
.size_mb = nand_size,
.mode = AES_CNT_CTRNAND_MODE
};
strncpy(padInfo.filename, filename, 64);
if(GetNandCtr(padInfo.ctr, 0xB930000) != 0)
return 1;
return CreatePad(&padInfo);
}
u32 TwlNandPadgen(u32 param)
{
(void) (param); // param is unused here
PartitionInfo* twln_info = GetPartitionInfo(P_TWLN);
u32 size_mb = (twln_info->size + (1024 * 1024) - 1) / (1024 * 1024);
Debug("Creating TWLN FAT16 xorpad. Size (MB): %u", size_mb);
Debug("Filename: twlnand.fat16.xorpad");
PadInfo padInfo = {
.keyslot = twln_info->keyslot,
.setKeyY = 0,
.size_mb = size_mb,
.filename = "twlnand.fat16.xorpad",
.mode = AES_CNT_TWLNAND_MODE
};
if(GetNandCtr(padInfo.ctr, twln_info->offset) != 0)
return 1;
return CreatePad(&padInfo);
}
u32 Firm0Firm1Padgen(u32 param)
{
(void) (param); // param is unused here
PartitionInfo* firm0_info = GetPartitionInfo(P_FIRM0);
PartitionInfo* firm1_info = GetPartitionInfo(P_FIRM1);
u32 size_mb = (firm0_info->size + firm1_info->size + (1024 * 1024) - 1) / (1024 * 1024);
Debug("Creating FIRM0FIRM1 xorpad. Size (MB): %u", size_mb);
Debug("Filename: firm0firm1.xorpad");
PadInfo padInfo = {
.keyslot = firm0_info->keyslot,
.setKeyY = 0,
.size_mb = size_mb,
.filename = "firm0firm1.xorpad",
.mode = AES_CNT_CTRNAND_MODE
};
if(GetNandCtr(padInfo.ctr, firm0_info->offset) != 0)
return 1;
return CreatePad(&padInfo);
}
u32 CtrNandPadgen(u32 param)
{
u32 keyslot;
u32 nand_size;
// legacy sizes & offset, to work with 3DSFAT16Tool
if (GetUnitPlatform() == PLATFORM_3DS) {
keyslot = 0x4;
nand_size = 758;
} else {
keyslot = 0x5;
nand_size = 1055;
}
Debug("Creating NAND FAT16 xorpad. Size (MB): %u", nand_size);
Debug("Filename: nand.fat16.xorpad");
PadInfo padInfo = {
.keyslot = keyslot,
.setKeyY = 0,
.size_mb = nand_size,
.filename = "nand.fat16.xorpad",
.mode = AES_CNT_CTRNAND_MODE
};
if(GetNandCtr(padInfo.ctr, 0xB930000) != 0)
return 1;
return CreatePad(&padInfo);
}
u32 TwlNandPadgen(u32 param)
{
u32 size_mb = (partitions[0].size + (1024 * 1024) - 1) / (1024 * 1024);
Debug("Creating TWLN FAT16 xorpad. Size (MB): %u", size_mb);
Debug("Filename: twlnand.fat16.xorpad");
PadInfo padInfo = {
.keyslot = partitions[0].keyslot,
.setKeyY = 0,
.size_mb = size_mb,
.filename = "twlnand.fat16.xorpad",
.mode = AES_CNT_TWLNAND_MODE
};
if(GetNandCtr(padInfo.ctr, partitions[0].offset) != 0)
return 1;
return CreatePad(&padInfo);
}
u32 Firm0Firm1Padgen(u32 param)
{
u32 size_mb = (partitions[3].size + partitions[4].size + (1024 * 1024) - 1) / (1024 * 1024);
Debug("Creating FIRM0FIRM1 xorpad. Size (MB): %u", size_mb);
Debug("Filename: firm0firm1.xorpad");
PadInfo padInfo = {
.keyslot = partitions[3].keyslot,
.setKeyY = 0,
.size_mb = size_mb,
.filename = "firm0firm1.xorpad",
.mode = AES_CNT_CTRNAND_MODE
};
if(GetNandCtr(padInfo.ctr, partitions[3].offset) != 0)
return 1;
return CreatePad(&padInfo);
}
u32 GetNandCtr(u8* ctr, u32 offset)
{
static const char* versions[] = {"4.x", "5.x", "6.x", "7.x", "8.x", "9.x"};
static const u8* version_ctrs[] = {
(u8*)0x080D7CAC,
(u8*)0x080D858C,
(u8*)0x080D748C,
(u8*)0x080D740C,
(u8*)0x080D74CC,
(u8*)0x080D794C
};
static const u32 version_ctrs_len = sizeof(version_ctrs) / sizeof(u32);
static u8* ctr_start = NULL;
if (ctr_start == NULL) {
for (u32 i = 0; i < version_ctrs_len; i++) {
if (*(u32*)version_ctrs[i] == 0x5C980) {
Debug("System version %s", versions[i]);
ctr_start = (u8*) version_ctrs[i] + 0x30;
}
}
// If value not in previous list start memory scanning (test range)
if (ctr_start == NULL) {
for (u8* c = (u8*) 0x080D8FFF; c > (u8*) 0x08000000; c--) {
if (*(u32*)c == 0x5C980 && *(u32*)(c + 1) == 0x800005C9) {
ctr_start = c + 0x30;
Debug("CTR start 0x%08X", ctr_start);
break;
}
}
}
if (ctr_start == NULL) {
Debug("CTR start not found!");
return 1;
}
}
// the ctr is stored backwards in memory
if (offset >= 0x0B100000) { // CTRNAND/AGBSAVE region
for (u32 i = 0; i < 16; i++)
ctr[i] = *(ctr_start + (0xF - i));
} else { // TWL region
for (u32 i = 0; i < 16; i++)
ctr[i] = *(ctr_start + 0x88 + (0xF - i));
}
// increment counter
add_ctr(ctr, offset / 0x10);
return 0;
}
u32 DecryptNandToMem(u8* buffer, u32 offset, u32 size, PartitionInfo* partition)
{
CryptBufferInfo info = {.keyslot = partition->keyslot, .setKeyY = 0, .size = size, .buffer = buffer, .mode = partition->mode};
if(GetNandCtr(info.ctr, offset) != 0)
return 1;
u32 n_sectors = (size + NAND_SECTOR_SIZE - 1) / NAND_SECTOR_SIZE;
u32 start_sector = offset / NAND_SECTOR_SIZE;
ReadNandSectors(start_sector, n_sectors, buffer);
CryptBuffer(&info);
return 0;
}
u32 DecryptNandToFile(const char* filename, u32 offset, u32 size, PartitionInfo* partition)
{
u8* buffer = BUFFER_ADDRESS;
u32 result = 0;
if (!DebugFileCreate(filename, true))
return 1;
for (u32 i = 0; i < size; i += NAND_SECTOR_SIZE * SECTORS_PER_READ) {
u32 read_bytes = min(NAND_SECTOR_SIZE * SECTORS_PER_READ, (size - i));
ShowProgress(i, size);
DecryptNandToMem(buffer, offset + i, read_bytes, partition);
if(!DebugFileWrite(buffer, read_bytes, i)) {
result = 1;
break;
}
}
ShowProgress(0, 0);
FileClose();
return result;
}
u32 InjectHealthAndSafety(u32 param)
{
u8* buffer = BUFFER_ADDRESS;
PartitionInfo* ctrnand_info = GetPartitionInfo(P_CTRNAND);
TitleListInfo* health = titleList + ((GetUnitPlatform() == PLATFORM_3DS) ? 3 : 4);
TitleListInfo* health_alt = (GetUnitPlatform() == PLATFORM_N3DS) ? titleList + 3 : NULL;
NcchHeader* ncch = (NcchHeader*) 0x20316000;
char filename[64];
u32 offset_app[4];
u32 size_app[4];
u32 offset_tmd;
u32 size_tmd;
u32 size_hs;
if (!(param & N_NANDWRITE)) // developer screwup protection
return 1;
if ((DebugSeekTitleInNand(&offset_tmd, &size_tmd, offset_app, size_app, health, 4) != 0) && (!health_alt ||
(DebugSeekTitleInNand(&offset_tmd, &size_tmd, offset_app, size_app, health_alt, 4) != 0)))
return 1;
if (size_app[0] > 0x400000) {
Debug("H&S system app is too big!");
return 1;
}
if (DecryptNandToMem((void*) ncch, offset_app[0], 0x200, ctrnand_info) != 0)
return 1;
if (InputFileNameSelector(filename, NULL, "app", ncch->signature, 0x100, 0, false) != 0)
return 1;
if (!DebugFileOpen(filename))
return 1;
size_hs = FileGetSize();
memset(buffer, 0, size_app[0]);
if (size_hs > size_app[0]) {
Debug("H&S inject app is too big!");
return 1;
}
if (!DebugFileRead(buffer, size_hs, 0)) {
FileClose();
return 1;
}
FileClose();
if (!DebugFileCreate("hs.enc", true))
return 1;
if (!DebugFileWrite(buffer, size_app[0], 0)) {
FileClose();
return 1;
}
FileClose();
if (CryptNcch("hs.enc", 0, 0, 0, ncch->flags) != 0)
return 1;
Debug("Injecting H&S app...");
if (EncryptFileToNand("hs.enc", offset_app[0], size_app[0], ctrnand_info) != 0)
return 1;
Debug("Fixing TMD...");
u8* tmd_data = (u8*) 0x20316000;
if (DecryptNandToMem(tmd_data, offset_tmd, size_tmd, ctrnand_info) != 0)
return 1;
tmd_data += (tmd_data[3] == 3) ? 0x240 : (tmd_data[3] == 4) ? 0x140 : 0x80;
u8* content_list = tmd_data + 0xC4 + (64 * 0x24);
u32 cnt_count = getbe16(tmd_data + 0x9E);
if (GetHashFromFile("hs.enc", 0, size_app[0], content_list + 0x10) != 0) {
Debug("Failed!");
return 1;
}
for (u32 i = 0, kc = 0; i < 64 && kc < cnt_count; i++) {
u32 k = getbe16(tmd_data + 0xC4 + (i * 0x24) + 0x02);
u8* chunk_hash = tmd_data + 0xC4 + (i * 0x24) + 0x04;
sha_quick(chunk_hash, content_list + kc * 0x30, k * 0x30, SHA256_MODE);
kc += k;
}
u8* tmd_hash = tmd_data + 0xA4;
sha_quick(tmd_hash, tmd_data + 0xC4, 64 * 0x24, SHA256_MODE);
tmd_data = (u8*) 0x20316000;
if (EncryptMemToNand(tmd_data, offset_tmd, size_tmd, ctrnand_info) != 0)
return 1;
return 0;
}