hekate/nyx/nyx_gui/hos/hos.c

/*
 * Copyright (c) 2018 naehrwert
 * Copyright (c) 2018 st4rk
 * Copyright (c) 2018 Ced2911
 * Copyright (c) 2018-2019 CTCaer
 * Copyright (c) 2018 balika011
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope 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 "hos.h"
#include "sept.h"
#include "../config/config.h"
#include "../gfx/di.h"
#include "../gfx/gfx.h"
#include "../mem/heap.h"
#include "../mem/mc.h"
#include "../sec/se.h"
#include "../sec/se_t210.h"
#include "../sec/tsec.h"
#include "../soc/bpmp.h"
#include "../soc/cluster.h"
#include "../soc/fuse.h"
#include "../soc/pmc.h"
#include "../soc/smmu.h"
#include "../soc/t210.h"
#include "../storage/nx_emmc.h"
#include "../storage/sdmmc.h"
#include "../utils/util.h"

extern hekate_config h_cfg;

extern void sd_unmount(bool deinit);

//#define DPRINTF(...) gfx_printf(__VA_ARGS__)
#define DPRINTF(...)

#define PKG2_LOAD_ADDR 0xA9800000

 // Secmon mailbox.
#define SECMON_MB_ADDR  0x40002EF8
#define SECMON7_MB_ADDR 0x400000F8
typedef struct _secmon_mailbox_t
{
	//  < 4.0.0 Signals - 0: Not ready, 1: BCT ready, 2: DRAM and pkg2 ready, 3: Continue boot.
	// >= 4.0.0 Signals - 0: Not ready, 1: BCT ready, 2: DRAM ready, 4: pkg2 ready and continue boot.
	u32 in;
	// Non-zero: Secmon ready.
	u32 out;
} secmon_mailbox_t;

static const u8 keyblob_keyseeds[][0x10] = {
	{ 0xDF, 0x20, 0x6F, 0x59, 0x44, 0x54, 0xEF, 0xDC, 0x70, 0x74, 0x48, 0x3B, 0x0D, 0xED, 0x9F, 0xD3 }, //1.0.0
	{ 0x0C, 0x25, 0x61, 0x5D, 0x68, 0x4C, 0xEB, 0x42, 0x1C, 0x23, 0x79, 0xEA, 0x82, 0x25, 0x12, 0xAC }, //3.0.0
	{ 0x33, 0x76, 0x85, 0xEE, 0x88, 0x4A, 0xAE, 0x0A, 0xC2, 0x8A, 0xFD, 0x7D, 0x63, 0xC0, 0x43, 0x3B }, //3.0.1
	{ 0x2D, 0x1F, 0x48, 0x80, 0xED, 0xEC, 0xED, 0x3E, 0x3C, 0xF2, 0x48, 0xB5, 0x65, 0x7D, 0xF7, 0xBE }, //4.0.0
	{ 0xBB, 0x5A, 0x01, 0xF9, 0x88, 0xAF, 0xF5, 0xFC, 0x6C, 0xFF, 0x07, 0x9E, 0x13, 0x3C, 0x39, 0x80 }, //5.0.0
	{ 0xD8, 0xCC, 0xE1, 0x26, 0x6A, 0x35, 0x3F, 0xCC, 0x20, 0xF3, 0x2D, 0x3B, 0x51, 0x7D, 0xE9, 0xC0 }  //6.0.0
};

static const u8 cmac_keyseed[0x10] =
	{ 0x59, 0xC7, 0xFB, 0x6F, 0xBE, 0x9B, 0xBE, 0x87, 0x65, 0x6B, 0x15, 0xC0, 0x53, 0x73, 0x36, 0xA5 };

static const u8 master_keyseed_retail[0x10] =
	{ 0xD8, 0xA2, 0x41, 0x0A, 0xC6, 0xC5, 0x90, 0x01, 0xC6, 0x1D, 0x6A, 0x26, 0x7C, 0x51, 0x3F, 0x3C };

static const u8 console_keyseed[0x10] =
	{ 0x4F, 0x02, 0x5F, 0x0E, 0xB6, 0x6D, 0x11, 0x0E, 0xDC, 0x32, 0x7D, 0x41, 0x86, 0xC2, 0xF4, 0x78 };

static const u8 package2_keyseed[] =
	{ 0xFB, 0x8B, 0x6A, 0x9C, 0x79, 0x00, 0xC8, 0x49, 0xEF, 0xD2, 0x4D, 0x85, 0x4D, 0x30, 0xA0, 0xC7 };

static const u8 master_keyseed_4xx_5xx_610[0x10] = 
	{ 0x2D, 0xC1, 0xF4, 0x8D, 0xF3, 0x5B, 0x69, 0x33, 0x42, 0x10, 0xAC, 0x65, 0xDA, 0x90, 0x46, 0x66 };

static const u8 master_keyseed_620[0x10] =
	{ 0x37, 0x4B, 0x77, 0x29, 0x59, 0xB4, 0x04, 0x30, 0x81, 0xF6, 0xE5, 0x8C, 0x6D, 0x36, 0x17, 0x9A };

static const u8 console_keyseed_4xx_5xx[0x10] = 
	{ 0x0C, 0x91, 0x09, 0xDB, 0x93, 0x93, 0x07, 0x81, 0x07, 0x3C, 0xC4, 0x16, 0x22, 0x7C, 0x6C, 0x28 };

int keygen(u8 *keyblob, u32 kb, tsec_ctxt_t *tsec_ctxt)
{
	u8 tmp[0x20];
	u32 retries = 0;

	if (kb > KB_FIRMWARE_VERSION_MAX)
		return 0;

	if (kb <= KB_FIRMWARE_VERSION_600)
		tsec_ctxt->size = 0xF00;
	else if (kb == KB_FIRMWARE_VERSION_620)
		tsec_ctxt->size = 0x2900;
	else if (kb == KB_FIRMWARE_VERSION_700)
		tsec_ctxt->size = 0x3000;
	else
		tsec_ctxt->size = 0x3300;

	// Prepare smmu tsec page for 6.2.0.
	if (kb == KB_FIRMWARE_VERSION_620)
	{
		u8 *tsec_paged = (u8 *)page_alloc(3);
		memcpy(tsec_paged, (void *)tsec_ctxt->fw, tsec_ctxt->size);
		tsec_ctxt->fw = tsec_paged;
	}

	// Get TSEC key.
	if (kb <= KB_FIRMWARE_VERSION_620)
	{
		while (tsec_query(tmp, kb, tsec_ctxt) < 0)
		{
			memset(tmp, 0x00, 0x20);
			retries++;

			// We rely on racing conditions, make sure we cover even the unluckiest cases.
			if (retries > 15)
				return 0;
		}
	}

	if (kb >= KB_FIRMWARE_VERSION_700)
		se_aes_unwrap_key(8, 12, package2_keyseed);
	else if (kb == KB_FIRMWARE_VERSION_620)
	{
		// Set TSEC key.
		se_aes_key_set(12, tmp, 0x10);
		// Set TSEC root key.
		se_aes_key_set(13, tmp + 0x10, 0x10);

		// Package2 key.
		se_aes_key_set(8, tmp + 0x10, 0x10);
		se_aes_unwrap_key(8, 8, master_keyseed_620);
		se_aes_unwrap_key(8, 8, master_keyseed_retail);
		se_aes_unwrap_key(8, 8, package2_keyseed);
	}
	else
	{
		se_key_acc_ctrl(13, 0x15);
		se_key_acc_ctrl(14, 0x15);

		// Set TSEC key.
		se_aes_key_set(13, tmp, 0x10);

		// Derive keyblob keys from TSEC+SBK.
		se_aes_crypt_block_ecb(13, 0, tmp, keyblob_keyseeds[0]);
		se_aes_unwrap_key(15, 14, tmp);
		se_aes_crypt_block_ecb(13, 0, tmp, keyblob_keyseeds[kb]);
		se_aes_unwrap_key(13, 14, tmp);

		// Clear SBK.
		se_aes_key_clear(14);

		//TODO: verify keyblob CMAC.
		//se_aes_unwrap_key(11, 13, cmac_keyseed);
		//se_aes_cmac(tmp, 0x10, 11, keyblob + 0x10, 0xA0);
		//if (!memcmp(keyblob, tmp, 0x10))
		//	return 0;

		se_aes_crypt_block_ecb(13, 0, tmp, cmac_keyseed);
		se_aes_unwrap_key(11, 13, cmac_keyseed);

		// Decrypt keyblob and set keyslots.
		se_aes_crypt_ctr(13, keyblob + 0x20, 0x90, keyblob + 0x20, 0x90, keyblob + 0x10);
		se_aes_key_set(11, keyblob + 0x20 + 0x80, 0x10); // Package1 key.
		se_aes_key_set(12, keyblob + 0x20, 0x10);
		se_aes_key_set(13, keyblob + 0x20, 0x10);

		se_aes_crypt_block_ecb(12, 0, tmp, master_keyseed_retail);

		switch (kb)
		{
		case KB_FIRMWARE_VERSION_100_200:
		case KB_FIRMWARE_VERSION_300:
		case KB_FIRMWARE_VERSION_301:
			se_aes_unwrap_key(13, 15, console_keyseed);
			se_aes_unwrap_key(12, 12, master_keyseed_retail);
			break;
		case KB_FIRMWARE_VERSION_400:
			se_aes_unwrap_key(13, 15, console_keyseed_4xx_5xx);
			se_aes_unwrap_key(15, 15, console_keyseed);
			se_aes_unwrap_key(14, 12, master_keyseed_4xx_5xx_610);
			se_aes_unwrap_key(12, 12, master_keyseed_retail);
			break;
		case KB_FIRMWARE_VERSION_500:
		case KB_FIRMWARE_VERSION_600:
			se_aes_unwrap_key(10, 15, console_keyseed_4xx_5xx);
			se_aes_unwrap_key(15, 15, console_keyseed);
			se_aes_unwrap_key(14, 12, master_keyseed_4xx_5xx_610);
			se_aes_unwrap_key(12, 12, master_keyseed_retail);
			break;
		}

		// Package2 key.
		se_key_acc_ctrl(8, 0x15);
		se_aes_unwrap_key(8, 12, package2_keyseed);
	}

	return 1;
}