91 lines
2.6 KiB
Rust
91 lines
2.6 KiB
Rust
// Copyright 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#![cfg_attr(not(feature = "std"), no_std)]
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extern crate alloc;
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#[macro_use]
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extern crate arrayref;
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use crate::ctap::hid::{CtapHid, HidPacket, HidPacketIterator};
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use crate::ctap::CtapState;
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use crate::env::Env;
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use clock::CtapInstant;
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// Those macros should eventually be split into trace, debug, info, warn, and error macros when
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// adding either the defmt or log feature and crate dependency.
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#[cfg(feature = "debug_ctap")]
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macro_rules! debug_ctap {
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($env: expr, $($rest:tt)*) => {
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use core::fmt::Write;
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writeln!($env.write(), $($rest)*).unwrap();
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};
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}
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#[cfg(not(feature = "debug_ctap"))]
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macro_rules! debug_ctap {
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($env: expr, $($rest:tt)*) => {
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// To avoid unused variable warnings.
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let _ = $env;
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};
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}
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pub mod api;
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pub mod clock;
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// Implementation details must be public for testing (in particular fuzzing).
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#[cfg(feature = "std")]
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pub mod ctap;
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#[cfg(not(feature = "std"))]
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mod ctap;
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pub mod env;
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/// CTAP implementation parameterized by its environment.
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pub struct Ctap<E: Env> {
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env: E,
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state: CtapState,
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hid: CtapHid,
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}
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impl<E: Env> Ctap<E> {
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/// Instantiates a CTAP implementation given its environment.
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// This should only take the environment, but it temporarily takes the boot time until the
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// clock is part of the environment.
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pub fn new(mut env: E, now: CtapInstant) -> Self {
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let state = CtapState::new(&mut env, now);
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let hid = CtapHid::new();
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Ctap { env, state, hid }
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}
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pub fn state(&mut self) -> &mut CtapState {
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&mut self.state
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}
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pub fn hid(&mut self) -> &mut CtapHid {
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&mut self.hid
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}
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pub fn process_hid_packet(
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&mut self,
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packet: &HidPacket,
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now: CtapInstant,
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) -> HidPacketIterator {
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self.hid
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.process_hid_packet(&mut self.env, packet, now, &mut self.state)
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}
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pub fn update_timeouts(&mut self, now: CtapInstant) {
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self.state.update_timeouts(now);
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self.hid.wink_permission = self.hid.wink_permission.check_expiration(now);
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}
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}
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