Fix lifetimes in ssl::select_next_proto #55
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X25519MLKEM768 is the standardised successor of the preliminary X25519Kyber768Draft00. Latest browsers have switched to X25519MLKEM768. Cloudflare supports both on the edge. We've had support for X25519MLKEM768 in this crate for a while, but didn't enable by default. We're now enabling serverside support by default. We also let clients advertise support when set to kx-client-pq-supported. We don't enable support by default yet for clients set to kx-client-pq-preferred, as that would cause an extra round-trip due to HelloRetryRequest if the server doesn't support X25519MLKEM768 yet. BoringSSL against which we build must support X25519MLKEM768, otherwise this will fail.
We can drop the once_cell dependency since the same functionality is implemented in std now. Requires bumping MSRV to 1.80.
We don't need the workaround that was initially introduced for a bug in openssl, and OPENSSL_init_ssl always calls into CRYPTO_library_init on boringssl, so just call it explicitly.
build: Fix the build for 32-bit Linux platform
cmake-rs' jobserver doesn't work reliably, if at all. One workaround is to set CMAKE_BUILD_PARALLEL_LEVEL to available_parallelism(). On my machine it shaves ~35 seconds off of boring-sys builds.
We currently expose this method on `SslContextBuilder`, which is fine for bootstrapping an `SSL_CTX`, but subsequent attempts to set ECH keys (like during key rotation) can only happen via `SslContextRef`. Also update the method on the builder to take an immutable reference to self because the API is thread safe.
There's a bug on OSX that prevents the CMake jobserver from working properly, and so CMake defaults to a single-threaded build. It's not clear when this is actually going to get fixed, so recent versions of cmake-rs just disable the jobserver and have CMake fall back to the number of available cores: rust-lang/cmake-rs#229 This means we don't need e6833b0
…port" This reverts commit 49d5a61.
…`hyper_boring::v1::HttpsConnector`" This reverts commit e518c24.
… reference (#320) Previously, set_ech_keys would consume the SslEchKeys struct to enforce the requirement that the struct is immutable after initializing it on a SSL_CTX. The problem with this is that it requires applications to needlessly reallocate the SslEchKeys struct if they want to initialize keys on multiple SSL_CTXs, which is a pretty common pattern. To work around this, we introduce a builder (SslEchKeysBuilder) that requires mutable access to add keys to the underlying struct. set_ech_keys takes in a reference to SslEchKeys, which can only be made via consuming the builder.
Some users of boring have issues with newer versions of cmake. Because we have an alternative solution, we can hold off on the bump for now.
See sfackler/rust-openssl#2360 and https://nvd.nist.gov/vuln/detail/CVE-2025-24898. From the rust-openssl PR: `SSL_select_next_proto` can return a pointer into either the client or server buffers, but the type signature of the function previously only bound the output buffer to the client buffer. This can result in a UAF in situations where the server slice does not point to a long-lived allocation. Thanks to Matt Mastracci for reporting this issue.
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See sfackler/rust-openssl#2360 and https://nvd.nist.gov/vuln/detail/CVE-2025-24898. From the rust-openssl PR: