fix: improve openssl crypto backend#98
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Un-gate `ca.rs` and `pair()` from rustls — they only use pure Rust crates (rsa, x509-cert, sha2) so pairing now works with openssl. Always detect legacy devices instead of only with openssl feature. Add openssl feature to FFI crate. Clean up SNI string and gate rustls-only PEM helpers to fix dead code warnings.
…ection `LockdownClient::start_session` already queries ProductVersion to detect legacy devices. Four callers were making the same query beforehand. Now `start_session` returns the legacy bool so callers reuse it instead of round-tripping to the device twice.
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maxslarsson
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* fix: make openssl crypto path a first-class backend Un-gate `ca.rs` and `pair()` from rustls — they only use pure Rust crates (rsa, x509-cert, sha2) so pairing now works with openssl. Always detect legacy devices instead of only with openssl feature. Add openssl feature to FFI crate. Clean up SNI string and gate rustls-only PEM helpers to fix dead code warnings. * refactor: return legacy flag from start_session, remove duplicate detection `LockdownClient::start_session` already queries ProductVersion to detect legacy devices. Four callers were making the same query beforehand. Now `start_session` returns the legacy bool so callers reuse it instead of round-tripping to the device twice.
jkcoxson
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May 8, 2026
…gClient (#96) * refactor: remove pairing_file field and state param from RemotePairingClient Move pairing_file from a struct field (&'a mut borrow) to a parameter on connect() and its callees. This removes the lifetime parameter from the struct and scopes the mutable borrow to the function call. Also remove the unused state: S generic from connect/pair/request_pair_consent, since every caller passed 0u8 and ignored it. Callers can capture state via move closures instead. * fix: feature gating for error conversions and dead deps (#95) - Add internal _serde_json and _reqwest features to gate From impls - Remove unused json and byteorder optional dependencies - Add missing xpc dependency to remote_pairing feature - Simplify map_err workarounds in tunnel code to use ? directly * fix: make openssl PairingFile escrow_bag field Optional (#97) The openssl variant of PairingFile had escrow_bag as Vec<u8> while RawPairingFile has it as Option<Data> (it's None on Apple Watch). This caused compile errors in the From/TryFrom impls when building with the openssl feature. The rustls variant already had the correct Option<Vec<u8>> type. * fix: improve openssl crypto backend (#98) * fix: make openssl crypto path a first-class backend Un-gate `ca.rs` and `pair()` from rustls — they only use pure Rust crates (rsa, x509-cert, sha2) so pairing now works with openssl. Always detect legacy devices instead of only with openssl feature. Add openssl feature to FFI crate. Clean up SNI string and gate rustls-only PEM helpers to fix dead code warnings. * refactor: return legacy flag from start_session, remove duplicate detection `LockdownClient::start_session` already queries ProductVersion to detect legacy devices. Four callers were making the same query beforehand. Now `start_session` returns the legacy bool so callers reuse it instead of round-tripping to the device twice. * Remove rt-multi-thread dependency from AFC file descriptor drop (#93) AFC's close-on-drop used block_in_place + block_on to synchronously send a FileClose packet, requiring tokio's rt-multi-thread feature. This is heavyweight for a best-effort cleanup that already did nothing on wasm and single-threaded runtimes. Replace with a simple no-op drop that warns (debug_assert + println) if .close().await wasn't called. The device reclaims FDs when the AFC session ends regardless. Also fix the afc tool to explicitly close file descriptors after use.
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Improve the openssl crypto backend, matching rustls in functionality.
The main issue was that
ca.rsandpair()were gated onrustlseven though they only use pure Rust crates (rsa,x509-cert,sha2,web-time) — no rustls APIs at all. This meant device pairing was completely unavailable when building with openssl.Changes:
ca.rsmodule fromrustls— now only requirespairfeaturepair()inLockdownClient— same, just needspairLockdownClient::start_sessionnow returns the legacy flag (Result<bool, IdeviceError>) instead ofResult<(), _>. Four callers were each queryingProductVersionseparately before callingstart_session, which also queries it internally — that's two round-trips to the device for the same value. Now the callers just use the returned flag.opensslfeature to the FFI crate alongsideaws-lcandringstart_sessionfrom a placeholder to"Device"(matching the rustls path)ensure_pem_headers/is_pem_formatted/is_base64helpers behindrustlsfeature since they're only used by the rustlsPairingFileimpl — removes dead code warnings on openssl builds