wlan_sme/serve/
ap.rs

1// Copyright 2018 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5use crate::{MlmeEventStream, MlmeSink, MlmeStream, ap as ap_sme};
6use fuchsia_sync::Mutex;
7use futures::channel::mpsc;
8use futures::prelude::*;
9use futures::select;
10use ieee80211::Ssid;
11use log::error;
12use std::pin::pin;
13use std::sync::Arc;
14use wlan_common::RadioConfig;
15use {
16    fidl_fuchsia_wlan_common as fidl_common, fidl_fuchsia_wlan_mlme as fidl_mlme,
17    fidl_fuchsia_wlan_sme as fidl_sme,
18};
19
20pub type Endpoint = fidl::endpoints::ServerEnd<fidl_sme::ApSmeMarker>;
21type Sme = ap_sme::ApSme;
22
23pub fn serve(
24    device_info: fidl_mlme::DeviceInfo,
25    spectrum_management_support: fidl_common::SpectrumManagementSupport,
26    event_stream: MlmeEventStream,
27    new_fidl_clients: mpsc::UnboundedReceiver<Endpoint>,
28) -> (MlmeSink, MlmeStream, impl Future<Output = Result<(), anyhow::Error>>) {
29    let (sme, mlme_sink, mlme_stream, time_stream) =
30        Sme::new(device_info, spectrum_management_support);
31    let fut = async move {
32        let sme = Arc::new(Mutex::new(sme));
33        let mlme_sme = super::serve_mlme_sme(event_stream, Arc::clone(&sme), time_stream);
34        let sme_fidl = super::serve_fidl(&*sme, new_fidl_clients, handle_fidl_request);
35        let mlme_sme = pin!(mlme_sme);
36        let sme_fidl = pin!(sme_fidl);
37        select! {
38            mlme_sme = mlme_sme.fuse() => mlme_sme?,
39            sme_fidl = sme_fidl.fuse() => match sme_fidl? {},
40        }
41        Ok(())
42    };
43    (mlme_sink, mlme_stream, fut)
44}
45
46async fn handle_fidl_request(
47    sme: &Mutex<Sme>,
48    request: fidl_sme::ApSmeRequest,
49) -> Result<(), ::fidl::Error> {
50    match request {
51        fidl_sme::ApSmeRequest::Start { config, responder } => {
52            let r = start(sme, config).await;
53            responder.send(r)?;
54        }
55        fidl_sme::ApSmeRequest::Stop { responder } => {
56            let r = stop(sme).await;
57            responder.send(r)?;
58        }
59        fidl_sme::ApSmeRequest::Status { responder } => {
60            let r = status(sme);
61            responder.send(&r)?;
62        }
63    }
64    Ok(())
65}
66
67async fn start(sme: &Mutex<Sme>, config: fidl_sme::ApConfig) -> fidl_sme::StartApResultCode {
68    let radio_cfg = match RadioConfig::try_from(config.radio_cfg) {
69        Ok(radio_cfg) => radio_cfg,
70        Err(e) => {
71            error!("Could not convert RadioConfig from ApConfig: {:?}", e);
72            return fidl_sme::StartApResultCode::InternalError;
73        }
74    };
75
76    let sme_config = ap_sme::Config {
77        ssid: Ssid::from_bytes_unchecked(config.ssid),
78        password: config.password,
79        radio_cfg,
80    };
81
82    let receiver = sme.lock().on_start_command(sme_config);
83    let r = receiver.await.unwrap_or_else(|_| {
84        error!("Responder for AP Start command was dropped without sending a response");
85        ap_sme::StartResult::InternalError
86    });
87
88    match r {
89        ap_sme::StartResult::Success => fidl_sme::StartApResultCode::Success,
90        ap_sme::StartResult::AlreadyStarted => fidl_sme::StartApResultCode::AlreadyStarted,
91        ap_sme::StartResult::InternalError => fidl_sme::StartApResultCode::InternalError,
92        ap_sme::StartResult::Canceled => fidl_sme::StartApResultCode::Canceled,
93        ap_sme::StartResult::TimedOut => fidl_sme::StartApResultCode::TimedOut,
94        ap_sme::StartResult::PreviousStartInProgress => {
95            fidl_sme::StartApResultCode::PreviousStartInProgress
96        }
97        ap_sme::StartResult::InvalidArguments(e) => {
98            error!("Invalid arguments for AP start: {}", e);
99            fidl_sme::StartApResultCode::InvalidArguments
100        }
101    }
102}
103
104async fn stop(sme: &Mutex<Sme>) -> fidl_sme::StopApResultCode {
105    let receiver = sme.lock().on_stop_command();
106    receiver.await.unwrap_or_else(|_| {
107        error!("Responder for AP Stop command was dropped without sending a response");
108        fidl_sme::StopApResultCode::InternalError
109    })
110}
111
112fn status(sme: &Mutex<Sme>) -> fidl_sme::ApStatusResponse {
113    fidl_sme::ApStatusResponse { running_ap: sme.lock().get_running_ap().map(Box::new) }
114}