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Added ability to install FIRM files

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d0k3 2017-08-16 18:02:41 +02:00
parent fdcc9059e2
commit 2cc94be6b4
8 changed files with 216 additions and 32 deletions
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82
source/common/sighax.h Normal file
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@ -0,0 +1,82 @@
#pragma once
#include "common.h"
// see https://gist.github.com/SciresM/cdd2266efb80175d37eabbe86f9d8c52 for source
// thanks SciresM, Myria, Normmatt, TuxSH and hedgeberg for the signatures!
u8 sig_nand_firm_retail[256] = {
0xB6, 0x72, 0x45, 0x31, 0xC4, 0x48, 0x65, 0x7A, 0x2A, 0x2E, 0xE3, 0x06, 0x45, 0x7E, 0x35, 0x0A,
0x10, 0xD5, 0x44, 0xB4, 0x28, 0x59, 0xB0, 0xE5, 0xB0, 0xBE, 0xD2, 0x75, 0x34, 0xCC, 0xCC, 0x2A,
0x4D, 0x47, 0xED, 0xEA, 0x60, 0xA7, 0xDD, 0x99, 0x93, 0x99, 0x50, 0xA6, 0x35, 0x7B, 0x1E, 0x35,
0xDF, 0xC7, 0xFA, 0xC7, 0x73, 0xB7, 0xE1, 0x2E, 0x7C, 0x14, 0x81, 0x23, 0x4A, 0xF1, 0x41, 0xB3,
0x1C, 0xF0, 0x8E, 0x9F, 0x62, 0x29, 0x3A, 0xA6, 0xBA, 0xAE, 0x24, 0x6C, 0x15, 0x09, 0x5F, 0x8B,
0x78, 0x40, 0x2A, 0x68, 0x4D, 0x85, 0x2C, 0x68, 0x05, 0x49, 0xFA, 0x5B, 0x3F, 0x14, 0xD9, 0xE8,
0x38, 0xA2, 0xFB, 0x9C, 0x09, 0xA1, 0x5A, 0xBB, 0x40, 0xDC, 0xA2, 0x5E, 0x40, 0xA3, 0xDD, 0xC1,
0xF5, 0x8E, 0x79, 0xCE, 0xC9, 0x01, 0x97, 0x43, 0x63, 0xA9, 0x46, 0xE9, 0x9B, 0x43, 0x46, 0xE8,
0xA3, 0x72, 0xB6, 0xCD, 0x55, 0xA7, 0x07, 0xE1, 0xEA, 0xB9, 0xBE, 0xC0, 0x20, 0x0B, 0x5B, 0xA0,
0xB6, 0x61, 0x23, 0x6A, 0x87, 0x08, 0xD7, 0x04, 0x51, 0x7F, 0x43, 0xC6, 0xC3, 0x8E, 0xE9, 0x56,
0x01, 0x11, 0xE1, 0x40, 0x5E, 0x5E, 0x8E, 0xD3, 0x56, 0xC4, 0x9C, 0x4F, 0xF6, 0x82, 0x3D, 0x12,
0x19, 0xAF, 0xAE, 0xEB, 0x3D, 0xF3, 0xC3, 0x6B, 0x62, 0xBB, 0xA8, 0x8F, 0xC1, 0x5B, 0xA8, 0x64,
0x8F, 0x93, 0x33, 0xFD, 0x9F, 0xC0, 0x92, 0xB8, 0x14, 0x6C, 0x3D, 0x90, 0x8F, 0x73, 0x15, 0x5D,
0x48, 0xBE, 0x89, 0xD7, 0x26, 0x12, 0xE1, 0x8E, 0x4A, 0xA8, 0xEB, 0x9B, 0x7F, 0xD2, 0xA5, 0xF7,
0x32, 0x8C, 0x4E, 0xCB, 0xFB, 0x00, 0x83, 0x83, 0x3C, 0xBD, 0x5C, 0x98, 0x3A, 0x25, 0xCE, 0xB8,
0xB9, 0x41, 0xCC, 0x68, 0xEB, 0x01, 0x7C, 0xE8, 0x7F, 0x5D, 0x79, 0x3A, 0xCA, 0x09, 0xAC, 0xF7
};
u8 sig_nand_firm_dev[256] = {
0x88, 0x69, 0x7C, 0xDC, 0xA9, 0xD1, 0xEA, 0x31, 0x82, 0x56, 0xFC, 0xD9, 0xCE, 0xD4, 0x29, 0x64,
0xC1, 0xE9, 0x8A, 0xBC, 0x64, 0x86, 0xB2, 0xF1, 0x28, 0xEC, 0x02, 0xE7, 0x1C, 0x5A, 0xE3, 0x5D,
0x63, 0xD3, 0xBF, 0x12, 0x46, 0x13, 0x40, 0x81, 0xAF, 0x68, 0x75, 0x47, 0x87, 0xFC, 0xB9, 0x22,
0x57, 0x1D, 0x7F, 0x61, 0xA3, 0x0D, 0xE4, 0xFC, 0xFA, 0x82, 0x93, 0xA9, 0xDA, 0x51, 0x23, 0x96,
0xF1, 0x31, 0x9A, 0x36, 0x49, 0x68, 0x46, 0x4C, 0xA9, 0x80, 0x6E, 0x0A, 0x52, 0x56, 0x74, 0x86,
0x75, 0x4C, 0xDD, 0xD4, 0xC3, 0xA6, 0x2B, 0xDC, 0xE2, 0x55, 0xE0, 0xDE, 0xEC, 0x23, 0x01, 0x29,
0xC1, 0xBA, 0xE1, 0xAE, 0x95, 0xD7, 0x86, 0x86, 0x56, 0x37, 0xC1, 0xE6, 0x5F, 0xAE, 0x83, 0xED,
0xF8, 0xE7, 0xB0, 0x7D, 0x17, 0xC0, 0xAA, 0xDA, 0x8F, 0x05, 0x5B, 0x64, 0x0D, 0x45, 0xAB, 0x0B,
0xAC, 0x76, 0xFF, 0x7B, 0x34, 0x39, 0xF5, 0xA4, 0xBF, 0xE8, 0xF7, 0xE0, 0xE1, 0x03, 0xBC, 0xE9,
0x95, 0xFA, 0xD9, 0x13, 0xFB, 0x72, 0x9D, 0x3D, 0x03, 0x0B, 0x26, 0x44, 0xEC, 0x48, 0x39, 0x64,
0x24, 0xE0, 0x56, 0x3A, 0x1B, 0x3E, 0x6A, 0x1F, 0x68, 0x0B, 0x39, 0xFC, 0x14, 0x61, 0x88, 0x6F,
0xA7, 0xA6, 0x0B, 0x6B, 0x56, 0xC5, 0xA8, 0x46, 0x55, 0x4A, 0xE6, 0x48, 0xFC, 0x46, 0xE3, 0x0E,
0x24, 0x67, 0x8F, 0xAF, 0x1D, 0xC3, 0xCE, 0xB1, 0x0C, 0x2A, 0x95, 0x0F, 0x4F, 0xFA, 0x20, 0x83,
0x23, 0x4E, 0xD8, 0xDC, 0xC3, 0x58, 0x7A, 0x6D, 0x75, 0x1A, 0x7E, 0x9A, 0xFA, 0x06, 0x15, 0x69,
0x55, 0x08, 0x4F, 0xF2, 0x72, 0x5B, 0x69, 0x8E, 0xB1, 0x74, 0x54, 0xD9, 0xB0, 0x2B, 0x6B, 0x76,
0xBE, 0x47, 0xAB, 0xBE, 0x20, 0x62, 0x94, 0x36, 0x69, 0x87, 0xA4, 0xCA, 0xB4, 0x2C, 0xBD, 0x0B
};
u8 sig_nand_ncsd_retail[256] = {
0x6C, 0xF5, 0x2F, 0x89, 0xF3, 0x78, 0x12, 0x0B, 0xFA, 0x4E, 0x10, 0x61, 0xD7, 0x36, 0x16, 0x34,
0xD9, 0xA2, 0x54, 0xA4, 0xF5, 0x7A, 0xA5, 0xBD, 0x9F, 0x2C, 0x30, 0x93, 0x4F, 0x0E, 0x68, 0xCB,
0xE6, 0x61, 0x1D, 0x90, 0xD7, 0x4C, 0xAA, 0xAC, 0xB6, 0xA9, 0x95, 0x56, 0x56, 0x47, 0x33, 0x3D,
0xC1, 0x70, 0x92, 0xD3, 0x20, 0x13, 0x10, 0x89, 0xCC, 0xCD, 0x63, 0x31, 0xCB, 0x3A, 0x59, 0x5D,
0x1B, 0xA2, 0x99, 0xA3, 0x2F, 0xF4, 0xD8, 0xE5, 0xDD, 0x1E, 0xB4, 0x6A, 0x2A, 0x57, 0x93, 0x5F,
0x6F, 0xE6, 0x37, 0x32, 0x2D, 0x3B, 0xC4, 0xF6, 0x7C, 0xFE, 0xD6, 0xC2, 0x25, 0x4C, 0x08, 0x9C,
0x62, 0xFA, 0x11, 0xD0, 0x82, 0x4A, 0x84, 0x4C, 0x79, 0xEE, 0x5A, 0x4F, 0x27, 0x3D, 0x46, 0xC2,
0x3B, 0xBB, 0xF0, 0xA2, 0xAF, 0x6A, 0xCA, 0xDB, 0xE6, 0x46, 0xF4, 0x6B, 0x86, 0xD1, 0x28, 0x9C,
0x7F, 0xF7, 0xE8, 0x16, 0xCF, 0xDA, 0x4B, 0xC3, 0x3D, 0xFF, 0x9D, 0x17, 0x5A, 0xC6, 0x9F, 0x72,
0x40, 0x6C, 0x07, 0x1B, 0x51, 0xF4, 0x5A, 0x1A, 0xCB, 0x87, 0xF1, 0x68, 0xC1, 0x77, 0xCB, 0x9B,
0xE6, 0xC3, 0x92, 0xF0, 0x34, 0x18, 0x49, 0xAE, 0x5D, 0x51, 0x0D, 0x26, 0xEE, 0xC1, 0x09, 0x7B,
0xEB, 0xFB, 0x9D, 0x14, 0x4A, 0x16, 0x47, 0x30, 0x1B, 0xEA, 0xF9, 0x52, 0x0D, 0x22, 0xC5, 0x5A,
0xF4, 0x6D, 0x49, 0x28, 0x4C, 0xC7, 0xF9, 0xFB, 0xBA, 0x37, 0x1A, 0x6D, 0x6E, 0x4C, 0x55, 0xF1,
0xE5, 0x36, 0xD6, 0x23, 0x7F, 0xFF, 0x54, 0xB3, 0xE9, 0xC1, 0x1A, 0x20, 0xCF, 0xCC, 0xAC, 0x0C,
0x6B, 0x06, 0xF6, 0x95, 0x76, 0x6A, 0xCE, 0xB1, 0x8B, 0xE3, 0x32, 0x99, 0xA9, 0x4C, 0xFC, 0xA7,
0xE2, 0x58, 0x81, 0x86, 0x52, 0xF7, 0x52, 0x6B, 0x30, 0x6B, 0x52, 0xE0, 0xAE, 0xD0, 0x42, 0x18
};
u8 sig_nand_ncsd_dev[256] = {
0x53, 0xCB, 0x0E, 0x4E, 0xB1, 0xA6, 0xFF, 0x84, 0x28, 0x4B, 0xE0, 0xE7, 0x38, 0x5A, 0xB4, 0xA6,
0x86, 0xA8, 0xBB, 0xCB, 0xC1, 0x61, 0x02, 0x47, 0x92, 0x80, 0xE0, 0x58, 0x36, 0x55, 0xD2, 0x71,
0x3F, 0xE5, 0x06, 0xFA, 0xEE, 0x74, 0xF8, 0xD1, 0x0F, 0x12, 0x20, 0x44, 0x1C, 0xC2, 0xFF, 0x5D,
0x6D, 0xDE, 0x99, 0xBE, 0x79, 0xC1, 0x9B, 0x38, 0x6C, 0xAF, 0x68, 0xD5, 0xEB, 0x8C, 0xED, 0x1A,
0xAB, 0x4D, 0x24, 0x3C, 0x5F, 0x39, 0x86, 0x80, 0xD3, 0x1C, 0xD2, 0xE3, 0xC9, 0xDD, 0x56, 0x70,
0xF2, 0xA8, 0x8D, 0x56, 0x3B, 0x8F, 0x65, 0xF5, 0xB2, 0x34, 0xFD, 0x2E, 0xBB, 0x3B, 0xE4, 0x4A,
0x3B, 0x6C, 0x30, 0x27, 0x22, 0xA2, 0xAD, 0xFB, 0x56, 0xAE, 0x3E, 0x1F, 0x64, 0x17, 0xBD, 0xEC,
0x1E, 0x5A, 0x86, 0xAA, 0xBB, 0xAF, 0xBE, 0x94, 0x19, 0xAC, 0xA8, 0xFD, 0xCD, 0x45, 0xE2, 0xCD,
0xF1, 0xEB, 0x69, 0x5F, 0x6E, 0xA8, 0x78, 0x16, 0x12, 0x2D, 0x7B, 0xE9, 0x8E, 0xEF, 0x92, 0xC0,
0x81, 0x4B, 0x16, 0xB2, 0x15, 0xB3, 0x1D, 0x8C, 0x81, 0x3B, 0xB3, 0x55, 0xCE, 0xA8, 0x13, 0x8F,
0xB3, 0xBF, 0x23, 0x74, 0x24, 0x68, 0x42, 0xCD, 0x91, 0xE1, 0xF9, 0xAA, 0xFF, 0x76, 0x87, 0x86,
0x17, 0xCE, 0x02, 0x06, 0x47, 0x77, 0xAE, 0xA0, 0x87, 0x6A, 0x2C, 0x24, 0x5C, 0x78, 0x43, 0x41,
0xCD, 0xEE, 0x90, 0xD6, 0x91, 0x74, 0x59, 0x08, 0xA6, 0xFF, 0x9C, 0xE7, 0x81, 0x16, 0x67, 0x96,
0xF9, 0xF1, 0x23, 0x8F, 0x88, 0x4C, 0x84, 0xD6, 0xF1, 0xEE, 0xBB, 0x2E, 0x40, 0xB4, 0xBC, 0xA0,
0x0A, 0x7B, 0x1E, 0x91, 0x3E, 0x09, 0x80, 0xD2, 0x9F, 0xF6, 0x06, 0x1D, 0x8A, 0xA9, 0x44, 0xC6,
0x63, 0xF2, 0x63, 0x81, 0x27, 0xF7, 0xCC, 0xAB, 0x6F, 0xC7, 0x15, 0x38, 0x47, 0x1A, 0x51, 0x38
};

1
source/filesys/filetype.h
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@ -49,5 +49,6 @@
#define FTYPE_KEYINIT(tp) (tp&(BIN_KEYDB))
#define FTYPE_SCRIPT(tp) (tp&(TXT_SCRIPT))
#define FTYPE_BOOTABLE(tp) (tp&(SYS_FIRM))
#define FTYPE_INSTALLABLE(tp) (tp&(SYS_FIRM))
u32 IdentifyFileType(const char* path);

9
source/game/firm.c
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@ -106,13 +106,10 @@ u32 GetArm9BinarySize(FirmA9LHeader* a9l) {
}
u32 SetupSecretKey(u32 keynum) {
// try to get key from sector 0x96
static u8 __attribute__((aligned(32))) sector[0x200];
// safety check
if (keynum >= 0x200/0x10) return 1;
// seach for secret sector data...
if (GetLegitSector0x96(sector) == 0) {
ReadNandSectors(sector, 0x96, 1, 0x11, NAND_SYSNAND);
if ((keynum < 0x200/0x10) && (ValidateSecretSector(sector) == 0)) {
setup_aeskey(0x11, sector + (keynum*0x10));
use_aeskey(0x11);
return 0;

19
source/godmode.c
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@ -911,9 +911,8 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, DirStruct* cur
bool keyinitable = (FTYPE_KEYINIT(filetype));
bool scriptable = (FTYPE_SCRIPT(filetype));
bool bootable = (FTYPE_BOOTABLE(filetype) && !(drvtype & DRV_VIRTUAL));
bool special_opt = mountable || verificable || decryptable || encryptable || cia_buildable || cia_buildable_legit || cxi_dumpable ||
tik_buildable || key_buildable || titleinfo || renamable || transferable || hsinjectable || restorable || xorpadable ||
ebackupable || keyinitable || bootable || scriptable;
bool installable = (FTYPE_INSTALLABLE(filetype) && !(drvtype & DRV_VIRTUAL));
bool special_opt = mountable || verificable || decryptable || encryptable || cia_buildable || cia_buildable_legit || cxi_dumpable || tik_buildable || key_buildable || titleinfo || renamable || transferable || hsinjectable || restorable || xorpadable || ebackupable || keyinitable || bootable || scriptable || installable;
char pathstr[32+1];
TruncateString(pathstr, curr_entry->path, 32, 8);
@ -1069,6 +1068,7 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, DirStruct* cur
int xorpad = (xorpadable) ? ++n_opt : -1;
int xorpad_inplace = (xorpadable) ? ++n_opt : -1;
int keyinit = (keyinitable) ? ++n_opt : -1;
int install = (installable) ? ++n_opt : -1;
int boot = (bootable) ? ++n_opt : -1;
int script = (scriptable) ? ++n_opt : -1;
if (mount > 0) optionstr[mount-1] = "Mount image to drive";
@ -1090,6 +1090,7 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, DirStruct* cur
if (xorpad > 0) optionstr[xorpad-1] = "Build XORpads (SD output)";
if (xorpad_inplace > 0) optionstr[xorpad_inplace-1] = "Build XORpads (inplace)";
if (keyinit > 0) optionstr[keyinit-1] = "Init " KEYDB_NAME;
if (install > 0) optionstr[install-1] = "Install FIRM";
if (boot > 0) optionstr[boot-1] = "Boot FIRM";
if (script > 0) optionstr[script-1] = "Execute GM9 script";
@ -1428,6 +1429,18 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, DirStruct* cur
if (ShowPrompt(true, "Warning: Keys are not verified.\nContinue on your own risk?"))
ShowPrompt(false, "%s\nAESkeydb init %s", pathstr, (InitKeyDb(curr_entry->path) == 0) ? "success" : "failed");
return 0;
} else if ((user_select == install)) {
size_t firm_size = FileGetSize(curr_entry->path);
u32 slots = 1;
if (GetNandPartitionInfo(NULL, NP_TYPE_FIRM, NP_SUBTYPE_CTR, 1, NAND_SYSNAND) == 0) {
optionstr[0] = "Install to FIRM0";
optionstr[1] = "Install to FIRM1";
optionstr[2] = "Install to both";
// this only works up to FIRM1;
slots = ShowSelectPrompt(3, optionstr, "%s (%dkB)\nInstall to SysNAND?", pathstr, firm_size / 1024);
} else slots = ShowPrompt(true, "%s (%dkB)\nInstall to SysNAND?", pathstr, firm_size / 1024) ? 1 : 0;
if (slots) SafeInstallFirm(curr_entry->path, slots);
return 0;
} else if ((user_select == boot)) {
size_t firm_size = FileGetSize(curr_entry->path);
if (firm_size > TEMP_BUFFER_SIZE) {

30
source/nand/nand.c
View File

@ -56,6 +56,7 @@ static const u8 sector0x96dev_sha256[0x20] = { // hash for legit sector 0x96 (di
static u8 CtrNandCtr[16];
static u8 TwlNandCtr[16];
static u8 OtpSha256[32] = { 0 };
static bool Crypto0x96 = false;
static u32 emunand_base_sector = 0x000000;
@ -88,6 +89,7 @@ bool InitNandCrypto(bool init_full)
if (IS_UNLOCKED) { // if OTP is unlocked
// see: https://www.3dbrew.org/wiki/OTP_Registers
sha_quick(OtpSha256, (u8*) 0x10012000, 0x90, SHA256_MODE);
Crypto0x96 = true; // valid 100% in that case, others need checking
} else if (IS_A9LH) { // for a9lh
// store the current SHA256 from register
memcpy(OtpSha256, (void*) REG_SHAHASH, 32);
@ -192,9 +194,12 @@ bool CheckSlot0x05Crypto(void)
bool CheckSector0x96Crypto(void)
{
if (!Crypto0x96) {
u8 buffer[0x200];
ReadNandSectors(buffer, SECTOR_SECRET, 1, 0x11, NAND_SYSNAND);
return (sha_cmp(KEY95_SHA256, buffer, 16, SHA256_MODE) == 0);
Crypto0x96 = (sha_cmp(KEY95_SHA256, buffer, 16, SHA256_MODE) == 0);
}
return Crypto0x96;
}
bool CheckGenuineNandNcsd(void)
@ -376,6 +381,11 @@ int WriteNandSectors(const void* buffer, u32 sector, u32 count, u32 keyslot, u32
return 0;
}
u32 ValidateSecretSector(u8* sector)
{
return (sha_cmp(SECTOR_SHA256, sector, 0x200, SHA256_MODE) == 0) ? 0 : 1;
}
// shamelessly stolen from myself
// see: https://github.com/d0k3/GodMode9/blob/master/source/game/ncsd.c#L4
u32 ValidateNandNcsdHeader(NandNcsdHeader* header)
@ -524,24 +534,6 @@ u32 GetNandPartitionInfo(NandPartitionInfo* info, u32 type, u32 subtype, u32 ind
return 0;
}
u32 GetLegitSector0x96(u8* sector)
{
// secret sector already in buffer?
if (sha_cmp(SECTOR_SHA256, sector, 0x200, SHA256_MODE) == 0)
return 0;
// search for valid secret sector in SysNAND / EmuNAND
const u32 nand_src[] = { NAND_SYSNAND, NAND_EMUNAND };
for (u32 i = 0; i < sizeof(nand_src) / sizeof(u32); i++) {
ReadNandSectors(sector, SECTOR_SECRET, 1, 0x11, nand_src[i]);
if (sha_cmp(SECTOR_SHA256, sector, 0x200, SHA256_MODE) == 0)
return 0;
}
// failed if we arrive here
return 1;
}
// OTP hash is 32 byte in size
u32 GetOtpHash(void* hash) {
if (!CheckSector0x96Crypto()) return 1;

2
source/nand/nand.h
View File

@ -75,7 +75,7 @@ u32 GetNandSizeSectors(u32 nand_src);
u32 GetNandNcsdPartitionInfo(NandPartitionInfo* info, u32 type, u32 subtype, u32 index, NandNcsdHeader* ncsd);
u32 GetNandPartitionInfo(NandPartitionInfo* info, u32 type, u32 subtype, u32 index, u32 nand_src);
u32 GetLegitSector0x96(u8* sector);
u32 ValidateSecretSector(u8* sector);
u32 GetOtpHash(void* hash);
u32 GetNandCid(void* cid);

98
source/nand/nandutil.c
View File

@ -6,6 +6,7 @@
#include "image.h"
#include "fsinit.h"
#include "fsperm.h"
#include "sighax.h"
#include "unittype.h"
#include "sha.h"
#include "ui.h"
@ -298,3 +299,100 @@ u32 SafeRestoreNandDump(const char* path) {
return ret;
}
u32 SafeInstallFirm(const char* path, u32 slots) {
char pathstr[32 + 1]; // truncated path string
TruncateString(pathstr, path, 32, 8);
// load / check FIRM
u8* firm = (u8*) TEMP_BUFFER;
UINT firm_size;
if ((fvx_qread(path, firm, 0, TEMP_BUFFER_SIZE, &firm_size) != FR_OK) ||
!firm_size || (firm_size >= TEMP_BUFFER_SIZE) || (ValidateFirm(firm, firm_size) != 0)) {
ShowPrompt(false, "%s\nFIRM load/verify error.", pathstr);
return 1;
}
// inject sighax signature, get hash
u8 firm_sha[0x20];
memcpy(firm + 0x100, (IS_DEVKIT) ? sig_nand_firm_dev : sig_nand_firm_retail, 0x200);
sha_quick(firm_sha, firm, firm_size, SHA256_MODE);
// check install slots
for (u32 s = 0; s < 8; s++) {
u8 firm_magic[] = { FIRM_MAGIC };
u8 lmagic[sizeof(firm_magic)];
NandPartitionInfo info;
if (!((slots>>s)&0x1)) continue;
if ((GetNandPartitionInfo(&info, NP_TYPE_FIRM, NP_SUBTYPE_CTR, s, NAND_SYSNAND) != 0) ||
((info.count * 0x200) < firm_size)) {
ShowPrompt(false, "%s\nFIRM%lu not found or too small.", pathstr, s);
return 1;
}
if ((ReadNandBytes(lmagic, info.sector*0x200, sizeof(firm_magic), info.keyslot, NAND_SYSNAND) != 0) ||
(memcmp(lmagic, firm_magic, sizeof(firm_magic)) != 0)) {
ShowPrompt(false, "%s\nFIRM%lu crypto fail.", pathstr, s);
return 1;
}
}
// check sector 0x96 on N3DS, offer fix if required
u8 sector0x96[0x200];
bool fix_sector0x96 = false;
ReadNandSectors(sector0x96, 0x96, 1, 0x11, NAND_SYSNAND);
if (!IS_O3DS && !CheckSector0x96Crypto()) {
ShowPrompt(false, "%s\nSector 0x96 crypto fail.", pathstr);
return 1;
}
if (!IS_O3DS && (ValidateSecretSector(sector0x96) != 0)) {
char path_sector[256];
strncpy(path_sector, path, 256);
char* slash = strrchr(path_sector, '/');
if (slash) strncpy(slash+1, "secret_sector.bin", 256 - (slash+1-path_sector));
else *path_sector = '\0';
if ((fvx_qread(path_sector, sector0x96, 0, 0x200, NULL) != FR_OK) ||
(ValidateSecretSector(sector0x96) != 0)) {
ShowPrompt(false, "%s\nSector 0x96 is corrupted.\n \nProvide \"secret_sector.bin\"\nto fix sector 0x96.", pathstr);
return 1;
} else if (ShowPrompt(true, "%s\nSector 0x96 is corrupted.\n \nFix sector 0x96 during\nthe installation?", pathstr)) {
fix_sector0x96 = true;
} else return 1;
}
// all checked, ready to go
if (!ShowUnlockSequence(6, "!WARNING!\n \nProceeding will install the\nprovided FIRM to the SysNAND.\n \nInstalling an unsupported FIRM\nwill BRICK your console!")) return 1;
// if (!SetWritePermissions(PERM_SYS_LVL3, true)) return 1; // one unlock sequence is enough
// point of no return
ShowString(false, "Installing FIRM, please wait...");
if (fix_sector0x96 && (WriteNandSectors(sector0x96, 0x96, 1, 0x11, NAND_SYSNAND) != 0)) {
ShowPrompt(false, "!THIS IS BAD!\n \nFailed writing sector 0x96.\nTry to fix before reboot!");
return 1;
}
for (u32 s = 0; s < 8; s++) {
NandPartitionInfo info;
if (!((slots>>s)&0x1)) continue;
if ((GetNandPartitionInfo(&info, NP_TYPE_FIRM, NP_SUBTYPE_CTR, s, NAND_SYSNAND) != 0) ||
(WriteNandBytes(firm, info.sector*0x200, firm_size, info.keyslot, NAND_SYSNAND) != 0)) {
ShowPrompt(false, "!THIS IS BAD!\n \nFailed writing FIRM%lu.\nTry to fix before reboot!", s);
return 1;
}
}
// done, now check the installation
ShowString(false, "Checking installation, please wait...");
if (fix_sector0x96 && ((ReadNandSectors(sector0x96, 0x96, 1, 0x11, NAND_SYSNAND) != 0) ||
(ValidateSecretSector(sector0x96) != 0))) {
ShowPrompt(false, "!THIS IS BAD!\n \nFailed verifying sector 0x96.\nTry to fix before reboot!");
}
for (u32 s = 0; s < 8; s++) {
NandPartitionInfo info;
if (!((slots>>s)&0x1)) continue;
if ((GetNandPartitionInfo(&info, NP_TYPE_FIRM, NP_SUBTYPE_CTR, s, NAND_SYSNAND) != 0) ||
(ReadNandBytes(firm, info.sector*0x200, firm_size, info.keyslot, NAND_SYSNAND) != 0) ||
(sha_cmp(firm_sha, firm, firm_size, SHA256_MODE) != 0))
ShowPrompt(false, "!THIS IS BAD!\n \nFailed verifying FIRM%lu.\nTry to fix before reboot!", s);
}
return 0;
}

1
source/nand/nandutil.h
View File

@ -6,3 +6,4 @@ u32 CheckEmbeddedBackup(const char* path);
u32 EmbedEssentialBackup(const char* path);
u32 ValidateNandDump(const char* path);
u32 SafeRestoreNandDump(const char* path);
u32 SafeInstallFirm(const char* path, u32 slots);