1 /* 2 * Copyright (C) 2021-2022 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 OHOS_DHCP_BINDING_H 17 #define OHOS_DHCP_BINDING_H 18 19 #include <stdint.h> 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 enum BindingMode { BIND_MODE_STATIC = 0, BIND_MODE_DYNAMIC, BIND_MODE_RESERVED }; 26 27 enum BindingState { BIND_NONE = 0, BIND_PENDING, BIND_ASSOCIATED, BIND_EXPIRED, BIND_RELEASED }; 28 29 typedef struct AddressBinding AddressBinding; 30 struct AddressBinding { 31 uint32_t ipAddress; 32 uint8_t chaddr[16]; 33 uint32_t clientId; 34 uint64_t bindingTime; 35 uint64_t pendingTime; 36 uint64_t expireIn; 37 uint64_t leaseTime; 38 uint64_t pendingInterval; 39 int bindingStatus; 40 int bindingMode; 41 }; 42 typedef struct AddressBinding *PAddressBinding; 43 44 typedef struct AddressBindingNode AddressBindingNode; 45 struct AddressBindingNode { 46 AddressBinding bind; 47 AddressBindingNode *next; 48 }; 49 typedef struct AddressBindingNode *PAddressBindingNode; 50 51 typedef struct AddressBindingList AddressBindingList; 52 struct AddressBindingList { 53 int size; 54 AddressBindingNode *first; 55 }; 56 typedef struct AddressBindingList *PAddressBindingList; 57 58 uint64_t NextPendingInterval(uint64_t pendingInterval); 59 int IsExpire(AddressBinding *binding); 60 int WriteAddressBinding(const AddressBinding *binding, char *out, uint32_t size); 61 int ParseAddressBinding(AddressBinding *binding, const char *buf); 62 63 #ifdef __cplusplus 64 } 65 #endif 66 #endif 67