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wolftpm-src

Build-script crate that compiles wolfTPM from C source for use by wolftpm-sys.

wolfTPM source

wolftpm-src requires the wolfTPM C source tree. Two ways to supply it:

Option 1: Environment variable (recommended for development)

export WOLFTPM_SRC=/path/to/wolfTPM
cargo build -p wolftpm-sys

Option 2: Bundled submodule (for building without a local clone)

git submodule update --init wolftpm-src/wolftpm
cargo build -p wolftpm-sys

wolfSSL dependency

wolfTPM requires wolfSSL headers at compile time. Supply them via any of:

Variable	Description
`WOLFSSL_DIR`	Install prefix (headers at `$WOLFSSL_DIR/include`)
`WOLFSSL_INCLUDE_DIR`	Direct path to the wolfSSL include directory
`WOLFSSL_SRC`	wolfSSL source tree (vendored build)

Features

Feature	Description
`linux-dev`	Linux `/dev/tpm0` kernel driver transport
`swtpm`	Software TPM socket transport (swtpm / IBM TPM2 simulator)

If neither feature is enabled, wolfTPM autodetects the available transport at runtime on Linux.

License

wolftpm-src is licensed under GPL-2.0-only or a commercial wolfSSL license. wolfTPM itself is also GPL-2.0-only or commercial.