1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef __RPMB_H__ 18 #define __RPMB_H__ 19 20 #include <stdbool.h> 21 #include <stddef.h> 22 #include <stdint.h> 23 24 struct rpmb_key { 25 uint8_t byte[32]; 26 }; 27 28 struct rpmb_state; 29 30 #define RPMB_BUF_SIZE 256 31 32 /* provides */ 33 int rpmb_init(struct rpmb_state** statep, void* mmc_handle); 34 void rpmb_set_key(struct rpmb_state* state, const struct rpmb_key* key); 35 void rpmb_uninit(struct rpmb_state* statep); 36 int rpmb_read(struct rpmb_state* state, 37 void* buf, 38 uint16_t addr, 39 uint16_t count); 40 int rpmb_read_no_mac(struct rpmb_state* state, 41 void* buf, 42 uint16_t addr, 43 uint16_t count); 44 int rpmb_verify(struct rpmb_state* state, 45 const void* buf, 46 uint16_t addr, 47 uint16_t count); 48 int rpmb_program_key(struct rpmb_state* state, const struct rpmb_key* key); 49 /* count must be 1 or 2, addr must be aligned */ 50 int rpmb_write(struct rpmb_state* state, 51 const void* buf, 52 uint16_t addr, 53 uint16_t count, 54 bool sync, 55 bool sync_checkpoint); 56 57 /* needs */ 58 int rpmb_send(void* mmc_handle, 59 void* reliable_write_buf, 60 size_t reliable_write_size, 61 void* write_buf, 62 size_t write_buf_size, 63 void* read_buf, 64 size_t read_buf_size, 65 bool sync, 66 bool sync_checkpoint); 67 68 #endif 69