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/*
* Copyright (c) 2011, NVIDIA CORPORATION
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NVIDIA CORPORATION nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RCM_H
#define _RCM_H
#include <stdint.h>
#define RCM_MIN_MSG_LENGTH 1024 // In bytes
#define NVBOOT_VERSION(a,b) ((((a)&0xffff) << 16) | ((b)&0xffff))
#define RCM_VERSION_1 (NVBOOT_VERSION(1, 0))
#define RCM_VERSION_35 (NVBOOT_VERSION(0x35, 1))
#define RCM_VERSION_40 (NVBOOT_VERSION(0x40, 1))
#define RCM_VERSION_MAJOR(ver) ((ver) >> 16)
#define RCM_VERSION_MINOR(ver) ((ver) & 0xffff)
// recovery mode commands
#define RCM_CMD_NONE 0x0
#define RCM_CMD_SYNC 0x1
#define RCM_CMD_DL_MINILOADER 0x4
#define RCM_CMD_QUERY_BR_VERSION 0x5
#define RCM_CMD_QUERY_RCM_VERSION 0x6
#define RCM_CMD_QUERY_BD_VERSION 0x7
// AES block size in bytes
#define RCM_AES_BLOCK_SIZE (128 / 8)
/*
* Defines the header for RCM messages from the host.
* Messages from the host have the format:
* rcm_msg_t
* payload
* padding
*/
typedef struct {
uint32_t len_insecure; // 000-003
uint8_t cmac_hash[RCM_AES_BLOCK_SIZE]; // 004-013
uint8_t reserved[16]; // 014-023
uint32_t opcode; // 024-027
uint32_t len_secure; // 028-02b
uint32_t payload_len; // 02c-02f
uint32_t rcm_version; // 030-033
uint8_t args[48]; // 034-063
uint8_t padding[16]; // 064-073
} rcm1_msg_t;
typedef struct {
uint32_t len_insecure; // 000-003
uint8_t modulus[2048 / 8]; // 004-103
union {
uint8_t cmac_hash[RCM_AES_BLOCK_SIZE];
uint8_t rsa_pss_sig[2048 / 8];
} object_sig; // 104-203
uint8_t reserved[16]; // 204-213
uint32_t ecid[4]; // 214-223
uint32_t opcode; // 224-227
uint32_t len_secure; // 228-22b
uint32_t payload_len; // 22c-22f
uint32_t rcm_version; // 230-233
uint8_t args[48]; // 234-263
uint8_t padding[16]; // 264-273
} rcm35_msg_t;
typedef struct {
uint32_t len_insecure; // 000-003
uint8_t modulus[2048 / 8]; // 004-103
struct {
uint8_t cmac_hash[RCM_AES_BLOCK_SIZE];
uint8_t rsa_pss_sig[2048 / 8];
} object_sig; // 104-213
uint8_t reserved[16]; // 214-223
uint32_t ecid[4]; // 224-233
uint32_t opcode; // 234-237
uint32_t len_secure; // 238-23b
uint32_t payload_len; // 23c-23f
uint32_t rcm_version; // 240-243
uint8_t args[48]; // 244-273
uint8_t padding[16]; // 274-283
} rcm40_msg_t;
// security operating modes
#define RCM_OP_MODE_PRE_PRODUCTION 0x1
#define RCM_OP_MODE_DEVEL 0x3
#define RCM_OP_MODE_ODM_OPEN 0x5
int rcm_init(uint32_t version);
uint32_t rcm_get_msg_len(uint8_t *msg);
int rcm_create_msg(
uint32_t opcode,
uint8_t *args,
uint32_t args_len,
uint8_t *payload,
uint32_t payload_len,
uint8_t **msg);
#endif // _RCM_H
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