native-ossl-sys 0.1.1

Native OpenSSL system bindings
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  • Source code size: 54.62 kB This is the summed size of all the files inside the crates.io package for this release.
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  • this release: 1m 29s Average build duration of successful builds.
  • all releases: 1m 54s Average build duration of successful builds in releases after 2024-10-23.
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  • abbra

native-ossl-sys

Raw FFI bindings to OpenSSL 3.x, generated by bindgen at build time.

This crate is an implementation detail of native-ossl. Do not depend on it directly — use native-ossl instead.

What this crate does

  • Runs pkg-config to locate the system OpenSSL (≥ 3.0.7).

  • Generates ossl_bindings.rs via bindgen from the public OpenSSL headers.

  • Detects the installed version and algorithm support, emitting rustc-cfg flags that native-ossl uses to gate version-specific APIs:

    Flag Meaning
    ossl307 OpenSSL ≥ 3.0.7 (always set at the minimum floor)
    ossl320 OpenSSL ≥ 3.2.0
    ossl350 OpenSSL ≥ 3.5.0
    ossl400 OpenSSL ≥ 4.0.0
    ossl_slhdsa SLH-DSA algorithm family present
    ossl_mldsa ML-DSA algorithm family present
    ossl_mlkem ML-KEM algorithm family present
    param_clear_free OSSL_PARAM_clear_free available

  • With the fips-provider feature: performs a second bindgen pass against non-public OpenSSL headers (OPENSSL_SOURCE_DIR required) and compiles a C probe to determine the evp_pkey_st::keydata field offset for the current target ABI.

links = "ssl"

The manifest key links = "ssl" causes Cargo to forward any cargo::metadata=KEY=VALUE emitted here to direct dependents as DEP_SSL_KEY environment variables. native-ossl/build.rs reads these to re-emit the cfg flags for the safe wrapper crate.

License

Apache-2.0