/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef KEYSTORE_KEYSTORE_UTILS_H_
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#define KEYSTORE_KEYSTORE_UTILS_H_
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#include <cstdint>
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#include <vector>
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#include <openssl/evp.h>
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#include <openssl/pem.h>
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#include <memory>
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#include <keystore/keymaster_types.h>
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size_t readFully(int fd, uint8_t* data, size_t size);
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size_t writeFully(int fd, uint8_t* data, size_t size);
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void add_legacy_key_authorizations(int keyType, keystore::AuthorizationSet* params);
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/**
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* Returns the app ID (in the Android multi-user sense) for the current
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* UNIX UID.
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*/
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uid_t get_app_id(uid_t uid);
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/**
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* Returns the user ID (in the Android multi-user sense) for the current
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* UNIX UID.
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*/
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uid_t get_user_id(uid_t uid);
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struct EVP_PKEY_Delete {
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void operator()(EVP_PKEY* p) const { EVP_PKEY_free(p); }
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};
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typedef std::unique_ptr<EVP_PKEY, EVP_PKEY_Delete> Unique_EVP_PKEY;
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struct PKCS8_PRIV_KEY_INFO_Delete {
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void operator()(PKCS8_PRIV_KEY_INFO* p) const { PKCS8_PRIV_KEY_INFO_free(p); }
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};
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typedef std::unique_ptr<PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_Delete> Unique_PKCS8_PRIV_KEY_INFO;
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class Blob;
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// Tags for audit logging. Be careful and don't log sensitive data.
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// Should be in sync with frameworks/base/core/java/android/app/admin/SecurityLogTags.logtags
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constexpr int SEC_TAG_KEY_DESTROYED = 210026;
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constexpr int SEC_TAG_KEY_INTEGRITY_VIOLATION = 210032;
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constexpr int SEC_TAG_AUTH_KEY_GENERATED = 210024;
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constexpr int SEC_TAG_KEY_IMPORTED = 210025;
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void log_key_integrity_violation(const char* name, uid_t uid);
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namespace keystore {
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hidl_vec<uint8_t> blob2hidlVec(const Blob& blob);
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SecurityLevel flagsToSecurityLevel(int32_t flags);
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uint32_t securityLevelToFlags(SecurityLevel secLevel);
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} // namespace keystore
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#endif // KEYSTORE_KEYSTORE_UTILS_H_
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