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
24 mod aconfigd_commands;
25
26 #[derive(Parser, Debug)]
27 struct Cli {
28 #[clap(subcommand)]
29 command: Command,
30 }
31
32 #[derive(Parser, Debug)]
33 enum Command {
34 /// start aconfigd socket.
35 StartSocket,
36
37 /// initialize mainline module storage files.
38 Init,
39
40 /// initialize bootstrap mainline module storage files.
41 BootstrapInit,
42 }
43
main()44 fn main() {
45 if !aconfig_new_storage_flags::enable_aconfig_storage_daemon()
46 || !aconfig_new_storage_flags::enable_aconfigd_from_mainline()
47 {
48 info!("aconfigd_mainline is disabled, exiting");
49 std::process::exit(0);
50 }
51
52 // SAFETY: nobody has taken ownership of the inherited FDs yet.
53 // This needs to be called before logger initialization as logger setup will create a
54 // file descriptor.
55 unsafe {
56 if let Err(errmsg) = rustutils::inherited_fd::init_once() {
57 error!("failed to run init_once for inherited fds: {:?}.", errmsg);
58 std::process::exit(1);
59 }
60 };
61
62 // setup android logger, direct to logcat
63 android_logger::init_once(
64 android_logger::Config::default()
65 .with_tag("aconfigd_mainline")
66 .with_max_level(log::LevelFilter::Trace),
67 );
68 info!("starting aconfigd_mainline commands.");
69
70 let cli = Cli::parse();
71 let command_return = match cli.command {
72 Command::StartSocket => aconfigd_commands::start_socket(),
73 Command::Init => aconfigd_commands::init(),
74 Command::BootstrapInit => aconfigd_commands::bootstrap_init(),
75 };
76
77 if let Err(errmsg) = command_return {
78 error!("failed to run aconfigd command: {:?}.", errmsg);
79 std::process::exit(1);
80 }
81 }
82