1 /*
2 * Copyright (C) 2024 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 //! `aconfigd-mainline` is a daemon binary that responsible for:
18 //! (1) initialize mainline storage files
19 //! (2) initialize and maintain a persistent socket based service
20
21 use clap::Parser;
22 use log::{error, info};
23 use std::panic;
24
25 mod aconfigd_commands;
26
27 #[derive(Parser, Debug)]
28 struct Cli {
29 #[clap(subcommand)]
30 command: Command,
31 }
32
33 #[derive(Parser, Debug)]
34 enum Command {
35 /// start aconfigd socket.
36 StartSocket,
37
38 /// initialize platform storage files.
39 PlatformInit,
40
41 /// initialize mainline module storage files.
42 MainlineInit,
43 }
44
main()45 fn main() {
46 if !aconfig_new_storage_flags::enable_aconfig_storage_daemon() {
47 info!("aconfigd_system is disabled, exiting");
48 std::process::exit(0);
49 }
50
51 // SAFETY: nobody has taken ownership of the inherited FDs yet.
52 // This needs to be called before logger initialization as logger setup will create a
53 // file descriptor.
54 unsafe {
55 if let Err(errmsg) = rustutils::inherited_fd::init_once() {
56 error!("failed to run init_once for inherited fds: {:?}.", errmsg);
57 std::process::exit(1);
58 }
59 };
60
61 // setup android logger, direct to logcat
62 android_logger::init_once(
63 android_logger::Config::default()
64 .with_tag("aconfigd_system")
65 .with_max_level(log::LevelFilter::Trace),
66 );
67 info!("starting aconfigd_system commands.");
68
69 let cli = Cli::parse();
70 let command_return = match cli.command {
71 Command::StartSocket => aconfigd_commands::start_socket(),
72 Command::PlatformInit => aconfigd_commands::platform_init(),
73 Command::MainlineInit => {
74 if aconfig_new_storage_flags::enable_aconfigd_from_mainline() {
75 info!("aconfigd_mainline is enabled, skipping mainline init");
76 std::process::exit(1);
77 }
78 aconfigd_commands::mainline_init()
79 }
80 };
81
82 if let Err(errmsg) = command_return {
83 error!("failed to run aconfigd command: {:?}.", errmsg);
84 std::process::exit(1);
85 }
86 }
87