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se: Upgrade SE and allow SHA calc continue

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- Allow SHA to calculate sizes > 16MB and refactor sha function
- Name various registers and magic numbers
- Fix various key access bugs

In a later commit this new design will boost verification times significantly and also allow full SHA256 hashes.
This commit is contained in:
CTCaer
2019-12-04 17:18:16 +02:00
parent 29a51124fd
commit 2c1da3a97d
12 changed files with 231 additions and 89 deletions
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20
bootloader/hos/hos.c
View File

@@ -114,11 +114,11 @@ static void _se_lock(bool lock_se)
if (lock_se)
{
for (u32 i = 0; i < 16; i++)
se_key_acc_ctrl(i, 0x15);
se_key_acc_ctrl(i, SE_KEY_TBL_DIS_KEYREAD_FLAG | SE_KEY_TBL_DIS_OIVREAD_FLAG | SE_KEY_TBL_DIS_UIVREAD_FLAG);
for (u32 i = 0; i < 2; i++)
se_rsa_acc_ctrl(i, 1);
SE(0x4) = 0; // Make this reg secure only.
se_rsa_acc_ctrl(i, SE_RSA_KEY_TBL_DIS_KEYREAD_FLAG);
SE(SE_TZRAM_SECURITY_0) = 0; // Make SE TZRAM secure only.
SE(SE_KEY_TABLE_ACCESS_LOCK_OFFSET) = 0; // Make all key access regs secure only.
SE(SE_RSA_KEYTABLE_ACCESS_LOCK_OFFSET) = 0; // Make all RSA access regs secure only.
SE(SE_SECURITY_0) &= 0xFFFFFFFB; // Make access lock regs secure only.
@@ -264,8 +264,8 @@ int keygen(u8 *keyblob, u32 kb, tsec_ctxt_t *tsec_ctxt, launch_ctxt_t *hos_ctxt)
}
else
{
se_key_acc_ctrl(13, 0x15);
se_key_acc_ctrl(14, 0x15);
se_key_acc_ctrl(13, SE_KEY_TBL_DIS_KEYREAD_FLAG | SE_KEY_TBL_DIS_OIVREAD_FLAG | SE_KEY_TBL_DIS_UIVREAD_FLAG);
se_key_acc_ctrl(14, SE_KEY_TBL_DIS_KEYREAD_FLAG | SE_KEY_TBL_DIS_OIVREAD_FLAG | SE_KEY_TBL_DIS_UIVREAD_FLAG);
// Set TSEC key.
se_aes_key_set(13, tmp, 0x10);
@@ -320,7 +320,7 @@ int keygen(u8 *keyblob, u32 kb, tsec_ctxt_t *tsec_ctxt, launch_ctxt_t *hos_ctxt)
}
// Package2 key.
se_key_acc_ctrl(8, 0x15);
se_key_acc_ctrl(8, SE_KEY_TBL_DIS_KEYREAD_FLAG | SE_KEY_TBL_DIS_OIVREAD_FLAG | SE_KEY_TBL_DIS_UIVREAD_FLAG);
se_aes_unwrap_key(8, 12, package2_keyseed);
}
@@ -660,16 +660,16 @@ int hos_launch(ini_sec_t *cfg)
PMC(APBDEV_PMC_SECURE_SCRATCH32) = 0xE3; // Warmboot 3.0.0 PA address id.
else if (ctxt.pkg1_id->kb == KB_FIRMWARE_VERSION_301)
PMC(APBDEV_PMC_SECURE_SCRATCH32) = 0x104; // Warmboot 3.0.1/.2 PA address id.
se_key_acc_ctrl(12, 0xFF);
se_key_acc_ctrl(13, 0xFF);
se_key_acc_ctrl(12, SE_KEY_TBL_DIS_KEY_ACCESS_FLAG | SE_KEY_TBL_DIS_KEY_LOCK_FLAG);
se_key_acc_ctrl(13, SE_KEY_TBL_DIS_KEY_ACCESS_FLAG | SE_KEY_TBL_DIS_KEY_LOCK_FLAG);
bootStateDramPkg2 = 2;
bootStatePkg2Continue = 3;
break;
case KB_FIRMWARE_VERSION_400:
case KB_FIRMWARE_VERSION_500:
case KB_FIRMWARE_VERSION_600:
se_key_acc_ctrl(12, 0xFF);
se_key_acc_ctrl(15, 0xFF);
se_key_acc_ctrl(12, SE_KEY_TBL_DIS_KEY_ACCESS_FLAG | SE_KEY_TBL_DIS_KEY_LOCK_FLAG);
se_key_acc_ctrl(15, SE_KEY_TBL_DIS_KEY_ACCESS_FLAG | SE_KEY_TBL_DIS_KEY_LOCK_FLAG);
default:
bootStateDramPkg2 = 2;
bootStatePkg2Continue = 4;

4
bootloader/main.c
View File

@@ -1100,8 +1100,8 @@ void about()
" Copyright (c) 2018, ChaN\n\n"
" - bcl-1.2.0,\n"
" Copyright (c) 2003-2006, Marcus Geelnard\n\n"
" - Atmosphere (SE sha256, prc id patches),\n"
" Copyright (c) 2018, Atmosphere-NX\n\n"
" - Atmosphere (Exo st/types, prc id patches),\n"
" Copyright (c) 2018-2019, Atmosphere-NX\n\n"
" - elfload,\n"
" Copyright (c) 2014, Owen Shepherd\n"
" Copyright (c) 2018, M4xw\n"

41
bootloader/sec/se.c
View File

@@ -1,7 +1,6 @@
/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018 CTCaer
* Copyright (c) 2018 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -66,8 +65,8 @@ static int _se_wait()
while (!(SE(SE_INT_STATUS_REG_OFFSET) & SE_INT_OP_DONE(INT_SET)))
;
if (SE(SE_INT_STATUS_REG_OFFSET) & SE_INT_ERROR(INT_SET) ||
SE(SE_STATUS_0) & 3 ||
SE(SE_ERR_STATUS_0) != 0)
SE(SE_STATUS_0) & SE_STATUS_0_STATE_WAIT_IN ||
SE(SE_ERR_STATUS_0) != SE_ERR_STATUS_0_SE_NS_ACCESS_CLEAR)
return 0;
return 1;
}
@@ -93,12 +92,12 @@ static int _se_execute(u32 op, void *dst, u32 dst_size, const void *src, u32 src
SE(SE_ERR_STATUS_0) = SE(SE_ERR_STATUS_0);
SE(SE_INT_STATUS_REG_OFFSET) = SE(SE_INT_STATUS_REG_OFFSET);
bpmp_mmu_maintenance(BPMP_MMU_MAINT_CLN_INV_WAY);
bpmp_mmu_maintenance(BPMP_MMU_MAINT_CLN_INV_WAY, false);
SE(SE_OPERATION_REG_OFFSET) = SE_OPERATION(op);
int res = _se_wait();
bpmp_mmu_maintenance(BPMP_MMU_MAINT_CLN_INV_WAY);
bpmp_mmu_maintenance(BPMP_MMU_MAINT_CLN_INV_WAY, false);
if (src)
free(ll_src);
@@ -121,7 +120,7 @@ static int _se_execute_one_block(u32 op, void *dst, u32 dst_size, const void *sr
memcpy(block, src, src_size);
int res = _se_execute(op, block, 0x10, block, 0x10);
memcpy(dst, block, dst_size);
free(block);
return res;
}
@@ -135,17 +134,19 @@ static void _se_aes_ctr_set(void *ctr)
void se_rsa_acc_ctrl(u32 rs, u32 flags)
{
if (flags & 0x7F)
SE(SE_RSA_KEYTABLE_ACCESS_REG_OFFSET + 4 * rs) = (((flags >> 4) & 4) | (flags & 3)) ^ 7;
if (flags & 0x80)
if (flags & SE_RSA_KEY_TBL_DIS_KEY_ALL_FLAG)
SE(SE_RSA_KEYTABLE_ACCESS_REG_OFFSET + 4 * rs) =
((flags >> SE_RSA_KEY_TBL_DIS_KEYUSE_FLAG_SHIFT) & SE_RSA_KEY_TBL_DIS_KEYUSE_FLAG) |
((flags & SE_RSA_KEY_TBL_DIS_KEY_READ_UPDATE_FLAG) ^ SE_RSA_KEY_TBL_DIS_KEY_ALL_COMMON_FLAG);
if (flags & SE_RSA_KEY_TBL_DIS_KEY_LOCK_FLAG)
SE(SE_RSA_KEYTABLE_ACCESS_LOCK_OFFSET) &= ~(1 << rs);
}
void se_key_acc_ctrl(u32 ks, u32 flags)
{
if (flags & 0x7F)
if (flags & SE_KEY_TBL_DIS_KEY_ACCESS_FLAG)
SE(SE_KEY_TABLE_ACCESS_REG_OFFSET + 4 * ks) = ~flags;
if (flags & 0x80)
if (flags & SE_KEY_TBL_DIS_KEY_LOCK_FLAG)
SE(SE_KEY_TABLE_ACCESS_LOCK_OFFSET) &= ~(1 << ks);
}
@@ -280,15 +281,15 @@ int se_calc_sha256(void *dst, const void *src, u32 src_size)
int res;
// Setup config for SHA256, size = BITS(src_size).
SE(SE_CONFIG_REG_OFFSET) = SE_CONFIG_ENC_MODE(MODE_SHA256) | SE_CONFIG_ENC_ALG(ALG_SHA) | SE_CONFIG_DST(DST_HASHREG);
SE(SE_SHA_CONFIG_REG_OFFSET) = SHA_ENABLE;
SE(SE_SHA_MSG_LENGTH_REG_OFFSET) = (u32)(src_size << 3);
SE(SE_SHA_MSG_LENGTH_REG_OFFSET + 4 * 1) = 0;
SE(SE_SHA_MSG_LENGTH_REG_OFFSET + 4 * 2) = 0;
SE(SE_SHA_MSG_LENGTH_REG_OFFSET + 4 * 3) = 0;
SE(SE_SHA_MSG_LEFT_REG_OFFSET) = (u32)(src_size << 3);
SE(SE_SHA_MSG_LEFT_REG_OFFSET + 4 * 1) = 0;
SE(SE_SHA_MSG_LEFT_REG_OFFSET + 4 * 2) = 0;
SE(SE_SHA_MSG_LEFT_REG_OFFSET + 4 * 3) = 0;
SE(SE_SHA_CONFIG_REG_OFFSET) = SHA_INIT_HASH;
SE(SE_SHA_MSG_LENGTH_0_REG_OFFSET) = (u32)(src_size << 3);
SE(SE_SHA_MSG_LENGTH_1_REG_OFFSET) = 0;
SE(SE_SHA_MSG_LENGTH_2_REG_OFFSET) = 0;
SE(SE_SHA_MSG_LENGTH_3_REG_OFFSET) = 0;
SE(SE_SHA_MSG_LEFT_0_REG_OFFSET) = (u32)(src_size << 3);
SE(SE_SHA_MSG_LEFT_1_REG_OFFSET) = 0;
SE(SE_SHA_MSG_LEFT_2_REG_OFFSET) = 0;
SE(SE_SHA_MSG_LEFT_3_REG_OFFSET) = 0;
// Trigger the operation.
res = _se_execute(OP_START, NULL, 0, src, src_size);

41
bootloader/sec/se_t210.h
View File

@@ -36,6 +36,8 @@
#define SE_SECURITY_0 0x000
#define SE_KEY_SCHED_READ_SHIFT 3
#define SE_TZRAM_SECURITY_0 0x004
#define SE_CONFIG_REG_OFFSET 0x014
#define SE_CONFIG_ENC_ALG_SHIFT 12
#define SE_CONFIG_DEC_ALG_SHIFT 8
@@ -211,7 +213,10 @@
#define SE_INT_ERROR(x) (x << SE_INT_ERROR_SHIFT)
#define SE_STATUS_0 0x800
#define SE_STATUS_0_STATE_WAIT_IN 3
#define SE_ERR_STATUS_0 0x804
#define SE_ERR_STATUS_0_SE_NS_ACCESS_CLEAR 0
#define SE_CRYPTO_KEYTABLE_DST_REG_OFFSET 0X330
#define SE_CRYPTO_KEYTABLE_DST_WORD_QUAD_SHIFT 0
@@ -232,11 +237,17 @@
#define SE_SPARE_0_REG_OFFSET 0x80c
#define SE_SHA_CONFIG_REG_OFFSET 0x200
#define SHA_DISABLE 0
#define SHA_ENABLE 1
#define SHA_CONTINUE 0
#define SHA_INIT_HASH 1
#define SE_SHA_MSG_LENGTH_REG_OFFSET 0x204
#define SE_SHA_MSG_LEFT_REG_OFFSET 0x214
#define SE_SHA_MSG_LENGTH_0_REG_OFFSET 0x204
#define SE_SHA_MSG_LENGTH_1_REG_OFFSET 0x208
#define SE_SHA_MSG_LENGTH_2_REG_OFFSET 0x20C
#define SE_SHA_MSG_LENGTH_3_REG_OFFSET 0x210
#define SE_SHA_MSG_LEFT_0_REG_OFFSET 0x214
#define SE_SHA_MSG_LEFT_1_REG_OFFSET 0x218
#define SE_SHA_MSG_LEFT_2_REG_OFFSET 0x21C
#define SE_SHA_MSG_LEFT_3_REG_OFFSET 0x220
#define SE_HASH_RESULT_REG_COUNT 16
#define SE_HASH_RESULT_REG_OFFSET 0x030
@@ -255,13 +266,24 @@
TEGRA_SE_RNG_DT_SIZE)
#define TEGRA_SE_AES_CMAC_DIGEST_SIZE 16
#define TEGRA_SE_RSA512_DIGEST_SIZE 64
#define TEGRA_SE_RSA512_DIGEST_SIZE 64
#define TEGRA_SE_RSA1024_DIGEST_SIZE 128
#define TEGRA_SE_RSA1536_DIGEST_SIZE 192
#define TEGRA_SE_RSA2048_DIGEST_SIZE 256
#define SE_KEY_TABLE_ACCESS_LOCK_OFFSET 0x280
#define SE_KEY_TBL_DIS_KEY_LOCK_FLAG 0x80
#define SE_KEY_TABLE_ACCESS_REG_OFFSET 0x284
#define SE_KEY_TBL_DIS_KEYREAD_FLAG (1 << 0)
#define SE_KEY_TBL_DIS_KEYUPDATE_FLAG (1 << 1)
#define SE_KEY_TBL_DIS_OIVREAD_FLAG (1 << 2)
#define SE_KEY_TBL_DIS_OIVUPDATE_FLAG (1 << 3)
#define SE_KEY_TBL_DIS_UIVREAD_FLAG (1 << 4)
#define SE_KEY_TBL_DIS_UIVUPDATE_FLAG (1 << 5)
#define SE_KEY_TBL_DIS_KEYUSE_FLAG (1 << 6)
#define SE_KEY_TBL_DIS_KEY_ACCESS_FLAG 0x7F
#define SE_KEY_READ_DISABLE_SHIFT 0
#define SE_KEY_UPDATE_DISABLE_SHIFT 1
@@ -313,7 +335,16 @@
#define TEGRA_SE_RSA_KEYSLOT_COUNT 2
#define SE_RSA_KEYTABLE_ACCESS_LOCK_OFFSET 0x40C
#define SE_RSA_KEY_TBL_DIS_KEY_LOCK_FLAG 0x80
#define SE_RSA_KEYTABLE_ACCESS_REG_OFFSET 0x410
#define SE_RSA_KEY_TBL_DIS_KEYREAD_FLAG (1 << 0)
#define SE_RSA_KEY_TBL_DIS_KEYUPDATE_FLAG (1 << 1)
#define SE_RSA_KEY_TBL_DIS_KEY_READ_UPDATE_FLAG (SE_RSA_KEY_TBL_DIS_KEYREAD_FLAG | SE_RSA_KEY_TBL_DIS_KEYUPDATE_FLAG)
#define SE_RSA_KEY_TBL_DIS_KEYUSE_FLAG (1 << 2)
#define SE_RSA_KEY_TBL_DIS_KEYUSE_FLAG_SHIFT (1 << 2)
#define SE_RSA_KEY_TBL_DIS_KEY_ALL_COMMON_FLAG 7
#define SE_RSA_KEY_TBL_DIS_KEY_ALL_FLAG 0x7F
#define SE_RSA_KEYTABLE_ADDR 0x420
#define SE_RSA_KEYTABLE_DATA 0x424