netstack3_core/device/
blackhole.rs

1// Copyright 2024 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
5//! Implementations of traits defined in foreign modules for the types defined
6//! in the blackhole module.
7
8use lock_order::relation::LockBefore;
9use lock_order::wrap::LockedWrapperApi;
10use net_types::ip::Ip;
11use netstack3_base::DeviceIdContext;
12use netstack3_device::blackhole::{
13    BlackholeDevice, BlackholeDeviceId, BlackholePrimaryDeviceId, BlackholeWeakDeviceId,
14};
15use netstack3_device::{DeviceCollectionContext, DeviceConfigurationContext};
16use netstack3_ip::nud::NudUserConfig;
17
18use crate::{BindingsTypes, CoreCtx};
19
20impl<BT: BindingsTypes, L> DeviceIdContext<BlackholeDevice> for CoreCtx<'_, BT, L> {
21    type DeviceId = BlackholeDeviceId<BT>;
22    type WeakDeviceId = BlackholeWeakDeviceId<BT>;
23}
24
25impl<'a, BT, L> DeviceCollectionContext<BlackholeDevice, BT> for CoreCtx<'a, BT, L>
26where
27    BT: BindingsTypes,
28    L: LockBefore<crate::lock_ordering::DeviceLayerState>,
29{
30    fn insert(&mut self, device: BlackholePrimaryDeviceId<BT>) {
31        let mut devices = self.write_lock::<crate::lock_ordering::DeviceLayerState>();
32        let strong = device.clone_strong();
33        assert!(devices.blackhole.insert(strong, device).is_none());
34    }
35
36    fn remove(&mut self, device: &BlackholeDeviceId<BT>) -> Option<BlackholePrimaryDeviceId<BT>> {
37        let mut devices = self.write_lock::<crate::lock_ordering::DeviceLayerState>();
38        devices.blackhole.remove(device)
39    }
40}
41
42impl<'a, BT, L> DeviceConfigurationContext<BlackholeDevice> for CoreCtx<'a, BT, L>
43where
44    BT: BindingsTypes,
45{
46    fn with_nud_config<I: Ip, O, F: FnOnce(Option<&NudUserConfig>) -> O>(
47        &mut self,
48        _device_id: &Self::DeviceId,
49        f: F,
50    ) -> O {
51        // Blackhole doesn't support NUD.
52        f(None)
53    }
54
55    fn with_nud_config_mut<I: Ip, O, F: FnOnce(Option<&mut NudUserConfig>) -> O>(
56        &mut self,
57        _device_id: &Self::DeviceId,
58        f: F,
59    ) -> O {
60        // Blackhole doesn't support NUD.
61        f(None)
62    }
63}
netstack3_core/device/blackhole.rs

netstack3_core/device/
blackhole.rs
