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Conditionally compile crypto backend

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This commit is contained in:
Jackson Coxson
2025-07-31 11:52:42 -06:00
parent 8549a82b55
commit 1515b1bab4
3 changed files with 39 additions and 11 deletions
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35
idevice/src/lib.rs
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@@ -390,15 +390,34 @@ impl Idevice {
pairing_file: &pairing_file::PairingFile,
) -> Result<(), IdeviceError> {
if CryptoProvider::get_default().is_none() {
let crypto_provider = if cfg!(feature = "ring") {
debug!("Using ring crypto backend");
rustls::crypto::ring::default_provider()
} else if cfg!(feature = "aws-lc") {
debug!("Using aws-lc crypto backend");
rustls::crypto::aws_lc_rs::default_provider()
} else {
panic!("No crypto provider compiled in! Use one of the features for idevice to specify a provider");
let crypto_provider = {
#[cfg(all(feature = "ring", not(feature = "aws-lc")))]
{
debug!("Using ring crypto backend");
rustls::crypto::ring::default_provider()
}
#[cfg(all(feature = "aws-lc", not(feature = "ring")))]
{
debug!("Using aws-lc crypto backend");
rustls::crypto::aws_lc_rs::default_provider()
}
#[cfg(not(any(feature = "ring", feature = "aws-lc")))]
{
panic!(
"No crypto backend was selected! Specify an idevice feature for a crypto backend"
);
}
#[cfg(all(feature = "ring", feature = "aws-lc"))]
{
compile_error!(
"Cannot enable both `ring` and `aws-lc` features at the same time"
);
}
};
if let Err(e) = CryptoProvider::install_default(crypto_provider) {
// For whatever reason, getting the default provider will return None on iOS at
// random. Installing the default provider a second time will return an error, so