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error.rs
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error.rs
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/*
*
* Copyright (c) 2020-2022 Project CHIP Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
use core::{array::TryFromSliceError, fmt, str::Utf8Error};
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
pub enum ErrorCode {
AttributeNotFound,
AttributeIsCustom,
BufferTooSmall,
ClusterNotFound,
CommandNotFound,
Duplicate,
EndpointNotFound,
InvalidAction,
InvalidCommand,
InvalidDataType,
UnsupportedAccess,
ResourceExhausted,
Busy,
DataVersionMismatch,
Crypto,
TLSStack,
MdnsError,
Network,
NoCommand,
NoEndpoint,
NoExchange,
NoFabricId,
NoHandler,
NoNetworkInterface,
NoNodeId,
NoMemory,
NoSession,
NoSpace,
NoSpaceAckTable,
NoSpaceRetransTable,
NoTagFound,
NotFound,
PacketPoolExhaust,
StdIoError,
SysTimeFail,
Invalid,
InvalidAAD,
InvalidData,
InvalidKeyLength,
InvalidOpcode,
InvalidPeerAddr,
// Invalid Auth Key in the Matter Certificate
InvalidAuthKey,
InvalidSignature,
InvalidState,
InvalidTime,
InvalidArgument,
RwLock,
TLVNotFound,
TLVTypeMismatch,
TruncatedPacket,
Utf8Fail,
}
impl From<ErrorCode> for Error {
fn from(code: ErrorCode) -> Self {
Self::new(code)
}
}
pub struct Error {
code: ErrorCode,
#[cfg(all(feature = "std", feature = "backtrace"))]
backtrace: std::backtrace::Backtrace,
}
impl Error {
pub fn new(code: ErrorCode) -> Self {
Self {
code,
#[cfg(all(feature = "std", feature = "backtrace"))]
backtrace: std::backtrace::Backtrace::capture(),
}
}
pub const fn code(&self) -> ErrorCode {
self.code
}
#[cfg(all(feature = "std", feature = "backtrace"))]
pub const fn backtrace(&self) -> &std::backtrace::Backtrace {
&self.backtrace
}
pub fn remap<F>(self, matcher: F, to: Self) -> Self
where
F: FnOnce(&Self) -> bool,
{
if matcher(&self) {
to
} else {
self
}
}
pub fn map_invalid(self, to: Self) -> Self {
self.remap(
|e| matches!(e.code(), ErrorCode::Invalid | ErrorCode::InvalidData),
to,
)
}
pub fn map_invalid_command(self) -> Self {
self.map_invalid(Error::new(ErrorCode::InvalidCommand))
}
pub fn map_invalid_action(self) -> Self {
self.map_invalid(Error::new(ErrorCode::InvalidAction))
}
pub fn map_invalid_data_type(self) -> Self {
self.map_invalid(Error::new(ErrorCode::InvalidDataType))
}
}
#[cfg(feature = "std")]
impl From<std::io::Error> for Error {
fn from(_e: std::io::Error) -> Self {
// Keep things simple for now
Self::new(ErrorCode::StdIoError)
}
}
#[cfg(feature = "std")]
impl<T> From<std::sync::PoisonError<T>> for Error {
fn from(_e: std::sync::PoisonError<T>) -> Self {
Self::new(ErrorCode::RwLock)
}
}
#[cfg(feature = "crypto_openssl")]
impl From<openssl::error::ErrorStack> for Error {
fn from(e: openssl::error::ErrorStack) -> Self {
::log::error!("Error in TLS: {}", e);
Self::new(ErrorCode::TLSStack)
}
}
#[cfg(all(feature = "crypto_mbedtls", not(target_os = "espidf")))]
impl From<mbedtls::Error> for Error {
fn from(e: mbedtls::Error) -> Self {
::log::error!("Error in TLS: {}", e);
Self::new(ErrorCode::TLSStack)
}
}
#[cfg(target_os = "espidf")]
impl From<esp_idf_sys::EspError> for Error {
fn from(e: esp_idf_sys::EspError) -> Self {
::log::error!("Error in ESP: {}", e);
Self::new(ErrorCode::TLSStack) // TODO: Not a good mapping
}
}
#[cfg(feature = "crypto_rustcrypto")]
impl From<ccm::aead::Error> for Error {
fn from(_e: ccm::aead::Error) -> Self {
Self::new(ErrorCode::Crypto)
}
}
#[cfg(feature = "std")]
impl From<std::time::SystemTimeError> for Error {
fn from(_e: std::time::SystemTimeError) -> Self {
Error::new(ErrorCode::SysTimeFail)
}
}
impl From<TryFromSliceError> for Error {
fn from(_e: TryFromSliceError) -> Self {
Self::new(ErrorCode::Invalid)
}
}
impl From<Utf8Error> for Error {
fn from(_e: Utf8Error) -> Self {
Self::new(ErrorCode::Utf8Fail)
}
}
impl fmt::Debug for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
#[cfg(not(all(feature = "std", feature = "backtrace")))]
{
write!(f, "Error::{}", self)?;
}
#[cfg(all(feature = "std", feature = "backtrace"))]
{
writeln!(f, "Error::{} {{", self)?;
write!(f, "{}", self.backtrace())?;
writeln!(f, "}}")?;
}
Ok(())
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{:?}", self.code())
}
}
#[cfg(feature = "std")]
impl std::error::Error for Error {}