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 INCLUDE_INTERFACE_MANAGER_H
17 #define INCLUDE_INTERFACE_MANAGER_H
18 
19 #include "interface_type.h"
20 #include <ostream>
21 #include <string>
22 #include <vector>
23 #include "net/if_arp.h"
24 
25 namespace OHOS {
26 namespace nmd {
27 static const uint32_t INTERFACE_ERR_MAX_LEN = 256;
28 
29 class InterfaceManager {
30 public:
31     InterfaceManager() = default;
32     ~InterfaceManager() = default;
33     /**
34      * Set network device mtu
35      *
36      * @param interfaceName Network device name
37      * @param mtuValue Value of mtu
38      * @return Returns 0, set network device mtu successfully, otherwise it will fail
39      */
40     static int SetMtu(const char *interfaceName, const char *mtuValue);
41 
42     /**
43      * Get network device mtu
44      *
45      * @param interfaceName Network device name
46      * @return Returns value of mtu
47      */
48     static int GetMtu(const char *interfaceName);
49 
50     /**
51      * Add local IP address to network
52      *
53      * @param interfaceName Network device name
54      * @param addr Network IP address
55      * @param prefixLen Length of the network number of the subnet mask
56      * @return Returns 0, add local IP address to network successfully, otherwise it will fail
57      */
58     static int AddAddress(const char *interfaceName, const char *addr, int prefixLen);
59 
60     /**
61      * Delete local IP address to network
62      *
63      * @param interfaceName Network device name
64      * @param addr Network IP address
65      * @param prefixLen Length of the network number of the subnet mask
66      * @return Returns 0, delete local IP address to network successfully, otherwise it will fail
67      */
68     static int DelAddress(const char *interfaceName, const char *addr, int prefixLen);
69 
70     /**
71      * Delete local IP address to network
72      *
73      * @param interfaceName Network device name
74      * @param addr Network IP address
75      * @param prefixLen Length of the network number of the subnet mask
76      * @param netCapabilities Net capabilities in string format
77      * @return Returns 0, delete local IP address to network successfully, otherwise it will fail
78      */
79     static int DelAddress(const char *interfaceName, const char *addr, int prefixLen,
80                           const std::string &netCapabilities);
81 
82     /**
83      * Get the network interface names
84      *
85      * @return Network interface names
86      */
87     static std::vector<std::string> GetInterfaceNames();
88 
89     /**
90      * Get the network interface config
91      *
92      * @param ifName Network device name
93      * @return Interface configuration parcel
94      */
95     static InterfaceConfigurationParcel GetIfaceConfig(const std::string &ifName);
96 
97     /**
98      * Set network interface config
99      *
100      * @param ifaceConfig Interface configuration parcel
101      * @return Returns 1, set network interface config successfully, otherwise it will fail
102      */
103     static int SetIfaceConfig(const nmd::InterfaceConfigurationParcel &ifaceConfig);
104 
105     /**
106      * Set network interface ip address
107      *
108      * @param ifaceName Network port device name
109      * @param ipAddress Ip address
110      * @return Returns 0, set IP address to network successfully, otherwise it will fail
111      */
112     static int SetIpAddress(const std::string &ifaceName, const std::string &ipAddress);
113 
114     /**
115      * Set iface up
116      *
117      * @param ifaceName Network port device name
118      * @return Returns 0, set up to network successfully, otherwise it will fail
119      */
120     static int SetIffUp(const std::string &ifaceName);
121     static int32_t AddStaticArp(const std::string &ipAddr, const std::string &macAddr,
122                                 const std::string &ifName);
123     static int32_t DelStaticArp(const std::string &ipAddr, const std::string &macAddr,
124                                 const std::string &ifName);
125 
126 private:
127     static int ModifyAddress(uint32_t action, const char *interfaceName, const char *addr, int prefixLen);
128     static int32_t AssembleArp(const std::string &ipAddr, const std::string &macAddr,
129                                const std::string &ifName, arpreq &req);
130     static int32_t MacStringToArray(const std::string &macAddr, sockaddr &macSock);
131 };
132 } // namespace nmd
133 } // namespace OHOS
134 #endif // INCLUDE_INTERFACE_MANAGER_H
135