1 /*
2  * Copyright (c) 2024 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 NETFIREWALL_CLIENT_H
17 #define NETFIREWALL_CLIENT_H
18 
19 #include <cstdint>
20 
21 #include "i_netfirewall_service.h"
22 #include "netfirewall_common.h"
23 #include "system_ability_load_callback_stub.h"
24 
25 namespace OHOS {
26 namespace NetManagerStandard {
27 // Firewall load callback
28 class NetFirewallLoadCallback : public SystemAbilityLoadCallbackStub {
29 public:
30     void OnLoadSystemAbilitySuccess(int32_t systemAbilityId, const sptr<IRemoteObject> &remoteObject) override;
31 
32     void OnLoadSystemAbilityFail(int32_t systemAbilityId) override;
33 
34     bool IsFailed();
35 
36     const sptr<IRemoteObject> &GetRemoteObject() const;
37 
38 private:
39     bool loadSAFailed_ = false;
40     sptr<IRemoteObject> remoteObject_ = nullptr;
41 };
42 
43 class NetFirewallClient {
44 public:
45     NetFirewallClient() = default;
46     ~NetFirewallClient() = default;
47     NetFirewallClient(const NetFirewallClient &) = delete;
48     NetFirewallClient &operator = (const NetFirewallClient &) = delete;
49 
50 public:
51     static NetFirewallClient &GetInstance();
52 
53 public:
54     int32_t SetNetFirewallPolicy(const int32_t userId, const sptr<NetFirewallPolicy> &status);
55 
56     int32_t GetNetFirewallPolicy(const int32_t userId, sptr<NetFirewallPolicy> &status);
57 
58     int32_t AddNetFirewallRule(const sptr<NetFirewallRule> &rule, int32_t &result);
59 
60     int32_t UpdateNetFirewallRule(const sptr<NetFirewallRule> &rule);
61 
62     int32_t DeleteNetFirewallRule(const int32_t userId, const int32_t ruleId);
63 
64     int32_t GetNetFirewallRules(const int32_t userId, const sptr<RequestParam> &requestParam,
65         sptr<FirewallRulePage> &info);
66 
67     int32_t GetNetFirewallRule(const int32_t userId, const int32_t ruleId, sptr<NetFirewallRule> &rule);
68 
69     int32_t GetInterceptRecords(const int32_t userId, const sptr<RequestParam> &requestParam,
70         sptr<InterceptRecordPage> &info);
71 
72 private:
73     class MonitorPcfirewallServiceDead : public IRemoteObject::DeathRecipient {
74     public:
MonitorPcfirewallServiceDead(NetFirewallClient & client)75         explicit MonitorPcfirewallServiceDead(NetFirewallClient &client) : client_(client) {}
76         ~MonitorPcfirewallServiceDead() override = default;
OnRemoteDied(const wptr<IRemoteObject> & remote)77         void OnRemoteDied(const wptr<IRemoteObject> &remote) override
78         {
79             client_.OnRemoteDied(remote);
80         }
81 
82     private:
83         NetFirewallClient &client_;
84     };
85 
86     sptr<INetFirewallService> GetProxy();
87 
88     sptr<IRemoteObject> LoadSaOnDemand();
89 
90     bool RestartNetFirewallManagerSysAbility();
91 
92     void OnRemoteDied(const wptr<IRemoteObject> &remote);
93 
94 private:
95     std::mutex mutex_;
96     sptr<INetFirewallService> netfirewallService_ = nullptr;
97     sptr<IRemoteObject::DeathRecipient> deathRecipient_ = nullptr;
98     sptr<NetFirewallLoadCallback> loadCallback_ = nullptr;
99 };
100 } // namespace NetManagerStandard
101 } // namespace OHOS
102 #endif // NETFIREWALL_CLIENT_H
103