1/* 2 * Copyright (C) 2016 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 KEYSTORE_KEYSTORE_UTILS_H_ 18#define KEYSTORE_KEYSTORE_UTILS_H_ 19 20#include <stdint.h> 21 22#include <vector> 23 24#include <openssl/evp.h> 25#include <openssl/pem.h> 26 27#include <hardware/keymaster_defs.h> 28 29#include <memory> 30 31#include <keystore/authorization_set.h> 32 33#include "blob.h" 34 35size_t readFully(int fd, uint8_t* data, size_t size); 36size_t writeFully(int fd, uint8_t* data, size_t size); 37 38void add_legacy_key_authorizations(int keyType, keystore::AuthorizationSet* params); 39 40/** 41 * Returns the app ID (in the Android multi-user sense) for the current 42 * UNIX UID. 43 */ 44uid_t get_app_id(uid_t uid); 45 46/** 47 * Returns the user ID (in the Android multi-user sense) for the current 48 * UNIX UID. 49 */ 50uid_t get_user_id(uid_t uid); 51 52struct EVP_PKEY_Delete { 53 void operator()(EVP_PKEY* p) const { EVP_PKEY_free(p); } 54}; 55typedef std::unique_ptr<EVP_PKEY, EVP_PKEY_Delete> Unique_EVP_PKEY; 56 57struct PKCS8_PRIV_KEY_INFO_Delete { 58 void operator()(PKCS8_PRIV_KEY_INFO* p) const { PKCS8_PRIV_KEY_INFO_free(p); } 59}; 60typedef std::unique_ptr<PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_Delete> Unique_PKCS8_PRIV_KEY_INFO; 61 62namespace keystore { 63 64inline static hidl_vec<uint8_t> blob2hidlVec(const Blob& blob) { 65 hidl_vec<uint8_t> result; 66 result.setToExternal(const_cast<uint8_t*>(blob.getValue()), blob.getLength()); 67 return result; 68} 69 70} // namespace keystore 71 72#endif // KEYSTORE_KEYSTORE_UTILS_H_ 73