1 /*
2  * Copyright (C) 2023 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 //! Common data definitions of IPC.
17 
18 #![allow(dead_code)]
19 #![allow(unused_variables)]
20 
21 use std::ffi::{ c_char, CString };
22 
23 use hilog_rust::{ info, hilog, HiLogLabel, LogType };
24 use ipc_rust::{
25     BorrowedMsgParcel, Serialize, Deserialize, IpcResult,
26     get_calling_token_id, get_calling_uid, get_calling_pid
27 };
28 
29 use fusion_utils_rust::call_debug_enter;
30 
31 const LOG_LABEL: HiLogLabel = HiLogLabel {
32     log_type: LogType::LogCore,
33     domain: 0xD002220,
34     tag: "FusionIpcDefaultData"
35 };
36 
37 /// User ID、user token、user process ID etc. of one IPC request.
38 pub struct CallingContext {
39     calling_uid: u64,
40     calling_pid: u64,
41     calling_token_id: u64,
42 }
43 
44 impl CallingContext {
45     /// Get user ID、user token、user process ID etc. of current IPC request.
current() -> Self46     pub fn current() -> Self {
47         info!(LOG_LABEL, "Assemble current calling context");
48         Self {
49             calling_uid: get_calling_uid(),
50             calling_pid: get_calling_pid(),
51             calling_token_id: get_calling_token_id()
52         }
53     }
54 }
55 
56 /// Default reply for a request.
57 pub struct DefaultReply {
58     /// The result of a request.
59     pub reply: i32,
60 }
61 
62 impl Serialize for DefaultReply {
serialize(&self, parcel: &mut BorrowedMsgParcel<'_>) -> IpcResult<()>63     fn serialize(&self, parcel: &mut BorrowedMsgParcel<'_>) -> IpcResult<()> {
64         call_debug_enter!("DefaultReply::serialize");
65         self.reply.serialize(parcel)?;
66         Ok(())
67     }
68 }
69 
70 impl Deserialize for DefaultReply {
deserialize(parcel: &BorrowedMsgParcel<'_>) -> IpcResult<Self>71     fn deserialize(parcel: &BorrowedMsgParcel<'_>) -> IpcResult<Self> {
72         call_debug_enter!("DefaultReply::deserialize");
73         let reply = i32::deserialize(parcel)?;
74         Ok(DefaultReply {
75             reply
76         })
77     }
78 }
79