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Atmosphere/exosphere/se.h
2018-02-22 17:50:37 -08:00

189 lines
6.3 KiB
C

#ifndef EXOSPHERE_SE_H
#define EXOSPHERE_SE_H
#include <stdint.h>
#include <stddef.h>
/* Exosphere driver for the Tegra X1 security engine. */
#define KEYSLOT_SWITCH_PACKAGE2KEY 0x8
#define KEYSLOT_SWITCH_TEMPKEY 0x9
#define KEYSLOT_SWITCH_SESSIONKEY 0xA
#define KEYSLOT_SWITCH_RNGKEY 0xB
#define KEYSLOT_SWITCH_MASTERKEY 0xC
#define KEYSLOT_SWITCH_DEVICEKEY 0xD
/* This keyslot was added in 4.0.0. */
#define KEYSLOT_SWITCH_4XNEWDEVICEKEYGENKEY 0xD
#define KEYSLOT_SWITCH_4XNEWCONSOLEKEYGENKEY 0xE
#define KEYSLOT_SWITCH_4XOLDDEVICEKEY 0xF
#define KEYSLOT_AES_MAX 0x10
#define KEYSLOT_RSA_MAX 0x2
#define KEYSIZE_AES_MAX 0x20
#define KEYSIZE_RSA_MAX 0x100
#define ALG_SHIFT (12)
#define ALG_DEC_SHIFT (8)
#define ALG_NOP (0 << ALG_SHIFT)
#define ALG_AES_ENC (1 << ALG_SHIFT)
#define ALG_AES_DEC ((1 << ALG_DEC_SHIFT) | ALG_NOP)
#define ALG_RNG (2 << ALG_SHIFT)
#define ALG_SHA (3 << ALG_SHIFT)
#define ALG_RSA (4 << ALG_SHIFT)
#define DST_SHIFT (2)
#define DST_MEMORY (0 << DST_SHIFT)
#define DST_HASHREG (1 << DST_SHIFT)
#define DST_KEYTAB (2 << DST_SHIFT)
#define DST_SRK (3 << DST_SHIFT)
#define DST_RSAREG (4 << DST_SHIFT)
#define ENCMODE_SHIFT (24)
#define DECMODE_SHIFT (16)
#define ENCMODE_SHA256 (5 << ENCMODE_SHIFT)
#define HASH_DISABLE (0x0)
#define HASH_ENABLE (0x1)
#define OP_ABORT 0
#define OP_START 1
#define OP_RESTART 2
#define OP_CTX_SAVE 3
#define OP_RESTART_IN 4
#define RSA_2048_BYTES 0x100
typedef struct security_engine {
unsigned int _0x0;
unsigned int _0x4;
unsigned int OPERATION_REG;
unsigned int INT_ENABLE_REG;
unsigned int INT_STATUS_REG;
unsigned int CONFIG_REG;
unsigned int IN_LL_ADDR_REG;
unsigned int _0x1C;
unsigned int _0x20;
unsigned int OUT_LL_ADDR_REG;
unsigned int _0x28;
unsigned int _0x2C;
unsigned char HASH_RESULT_REG[0x20];
unsigned char _0x50[0x1B0];
unsigned int SHA_CONFIG_REG;
unsigned int SHA_MSG_LENGTH_REG;
unsigned int _0x20C;
unsigned int _0x210;
unsigned int SHA_MSG_LEFT_REG;
unsigned int _0x218;
unsigned int _0x21C;
unsigned int _0x220;
unsigned int _0x224;
unsigned char _0x228[0x5C];
unsigned int AES_KEY_READ_DISABLE_REG;
unsigned int AES_KEYSLOT_FLAGS[0x10];
unsigned char _0x2C4[0x3C];
unsigned int _0x300;
unsigned int CRYPTO_REG;
unsigned int CRYPTO_CTR_REG[4];
unsigned int BLOCK_COUNT_REG;
unsigned int AES_KEYTABLE_ADDR;
unsigned int AES_KEYTABLE_DATA;
unsigned int _0x324;
unsigned int _0x328;
unsigned int _0x32C;
unsigned int CRYPTO_KEYTABLE_DST_REG;
unsigned char _0x334[0xC];
unsigned int RNG_CONFIG_REG;
unsigned int RNG_SRC_CONFIG_REG;
unsigned int RNG_RESEED_INTERVAL_REG;
unsigned char _0x34C[0xB4];
unsigned int RSA_CONFIG;
unsigned int RSA_KEY_SIZE_REG;
unsigned int RSA_EXP_SIZE_REG;
unsigned int RSA_KEY_READ_DISABLE_REG;
unsigned int RSA_KEYSLOT_FLAGS[2];
unsigned int _0x418;
unsigned int _0x41C;
unsigned int RSA_KEYTABLE_ADDR;
unsigned int RSA_KEYTABLE_DATA;
unsigned char RSA_OUTPUT[0x100];
unsigned char _0x528[0x2D8];
unsigned int FLAGS_REG;
unsigned int ERR_STATUS_REG;
unsigned int _0x808;
unsigned int _0x80C;
unsigned int _0x810;
unsigned int _0x814;
unsigned int _0x818;
unsigned int _0x81C;
unsigned char _0x820[0x17E0];
} security_engine_t;
typedef struct {
uint32_t address;
uint32_t size;
} se_addr_info_t;
typedef struct {
uint32_t num_entries; /* Set to total entries - 1 */
se_addr_info_t addr_info; /* This should really be an array...but for our use case it works. */
} se_ll_t;
/* TODO: Define constants for the C driver. */
/* WIP, API subject to change. */
/* This function MUST be registered to fire on the appropriate interrupt. */
void se_operation_completed(void);
security_engine_t *get_security_engine_address(void);
void se_check_for_error(void);
void se_trigger_interrupt(void);
void se_verify_flags_cleared(void);
void se_clear_interrupts(void);
void set_aes_keyslot_flags(unsigned int keyslot, unsigned int flags);
void set_rsa_keyslot_flags(unsigned int keyslot, unsigned int flags);
void clear_aes_keyslot(unsigned int keyslot);
void clear_rsa_keyslot(unsigned int keyslot);
void set_aes_keyslot(unsigned int keyslot, const void *key, size_t key_size);
void decrypt_data_into_keyslot(unsigned int keyslot_dst, unsigned int keyslot_src, const void *wrapped_key, size_t wrapped_key_size);
void set_rsa_keyslot(unsigned int keyslot, const void *modulus, size_t modulus_size, const void *exponent, size_t exp_size);
void set_aes_keyslot_iv(unsigned int keyslot, const void *iv, size_t iv_size);
void set_se_ctr(const void *ctr);
/* Insecure AES API */
void se_aes_ctr_crypt_insecure(unsigned int keyslot, uint32_t out_ll_paddr, uint32_t in_ll_paddr, size_t size, const void *ctr, unsigned int (*callback)(void));
void se_aes_cbc_encrypt_insecure(unsigned int keyslot, uint32_t out_ll_paddr, uint32_t in_ll_paddr, size_t size, const void *iv, unsigned int (*callback)(void));
void se_aes_cbc_decrypt_insecure(unsigned int keyslot, uint32_t out_ll_paddr, uint32_t in_ll_paddr, size_t size, const void *iv, unsigned int (*callback)(void));
/* Secure AES API */
void se_compute_aes_128_cmac(unsigned int keyslot, void *cmac, size_t cmac_size, const void *data, size_t data_size);
void se_compute_aes_256_cmac(unsigned int keyslot, void *cmac, size_t cmac_size, const void *data, size_t data_size);
void se_aes_128_ecb_encrypt_block(unsigned int keyslot, void *dst, size_t dst_size, const void *src, size_t src_size);
void se_aes_256_ecb_encrypt_block(unsigned int keyslot, void *dst, size_t dst_size, const void *src, size_t src_size);
void se_aes_ctr_crypt(unsigned int keyslot, void *dst, size_t dst_size, const void *src, size_t src_size, const void *ctr, size_t ctr_size);
void se_aes_ecb_decrypt_block(unsigned int keyslot, void *dst, size_t dst_size, const void *src, size_t src_size);
/* Hash API */
void se_calculate_sha256(void *dst, const void *src, size_t src_size);
/* RSA API */
void se_exp_mod(unsigned int keyslot, void *buf, size_t size, unsigned int (*callback)(void));
void se_get_exp_mod_output(void *buf, size_t size);
void se_synchronous_exp_mod(unsigned int keyslot, void *dst, size_t dst_size, const void *src, size_t src_size);
/* RNG API */
void se_initialize_rng(unsigned int keyslot);
void se_generate_random(unsigned int keyslot, void *dst, size_t size);
/* TODO: SE context save API. */
#endif /* EXOSPHERE_SE_H */