1 /* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef AUTH_SESSION_KEY_H 17 #define AUTH_SESSION_KEY_H 18 19 #include "auth_interface.h" 20 21 #ifdef __cplusplus 22 #if __cplusplus 23 extern "C" { 24 #endif 25 #endif 26 27 #define ENCRYPT_INDEX_LEN 4 28 #define ENCRYPT_OVER_HEAD_LEN (OVERHEAD_LEN + ENCRYPT_INDEX_LEN) 29 30 typedef struct { 31 uint8_t value[SESSION_KEY_LENGTH]; 32 uint32_t len; 33 } SessionKey; 34 35 typedef struct { 36 const uint8_t *inData; 37 uint32_t inLen; 38 } InDataInfo; 39 typedef ListNode SessionKeyList; 40 41 void InitSessionKeyList(SessionKeyList *list); 42 void DestroySessionKeyList(SessionKeyList *list); 43 int32_t DupSessionKeyList(const SessionKeyList *srcList, SessionKeyList *dstList); 44 45 uint64_t GetLatestAvailableSessionKeyTime(const SessionKeyList *list, AuthLinkType type); 46 bool HasSessionKey(const SessionKeyList *list); 47 AuthLinkType GetSessionKeyTypeByIndex(const SessionKeyList *list, int32_t index); 48 int32_t AddSessionKey(SessionKeyList *list, int32_t index, const SessionKey *key, AuthLinkType type, 49 bool isOldKey); 50 int32_t SetSessionKeyAvailable(SessionKeyList *list, int32_t index); 51 int32_t GetLatestSessionKey(const SessionKeyList *list, AuthLinkType type, int32_t *index, SessionKey *key); 52 int32_t GetSessionKeyByIndex(const SessionKeyList *list, int32_t index, AuthLinkType type, SessionKey *key); 53 int32_t SetSessionKeyAuthLinkType(const SessionKeyList *list, int32_t index, AuthLinkType type); 54 bool CheckSessionKeyListExistType(const SessionKeyList *list, AuthLinkType type); 55 bool CheckSessionKeyListHasOldKey(const SessionKeyList *list, AuthLinkType type); 56 int32_t ClearOldKey(const SessionKeyList *list, AuthLinkType type); 57 void RemoveSessionkeyByIndex(SessionKeyList *list, int32_t index, AuthLinkType type); 58 void ClearSessionkeyByAuthLinkType(int64_t authId, SessionKeyList *list, AuthLinkType type); 59 60 int32_t EncryptInner(const SessionKeyList *list, AuthLinkType type, const InDataInfo *inDataInfo, 61 uint8_t **outData, uint32_t *outLen); 62 int32_t DecryptInner(const SessionKeyList *list, AuthLinkType type, const InDataInfo *inDataInfo, 63 uint8_t **outData, uint32_t *outLen); 64 65 int32_t EncryptData(const SessionKeyList *list, AuthLinkType type, const InDataInfo *inDataInfo, 66 uint8_t *outData, uint32_t *outLen); 67 int32_t DecryptData(const SessionKeyList *list, AuthLinkType type, const InDataInfo *inDataInfo, 68 uint8_t *outData, uint32_t *outLen); 69 70 void ScheduleUpdateSessionKey(AuthHandle authHandle, uint64_t delatMs); 71 void CancelUpdateSessionKey(int64_t authId); 72 73 /* For Debug */ 74 void DumpSessionkeyList(const SessionKeyList *list); 75 76 #ifdef __cplusplus 77 #if __cplusplus 78 } 79 #endif 80 #endif 81 #endif /* AUTH_SESSION_KEY_H */ 82