6 releases (breaking)
0.5.0 | Oct 9, 2023 |
---|---|
0.4.0 | Feb 6, 2023 |
0.3.0 | Feb 4, 2022 |
0.2.0 | Jun 17, 2021 |
0.1.1 | Mar 25, 2021 |
#1614 in Cryptography
9,894 downloads per month
Used in 16 crates
(3 directly)
2.5MB
83K
SLoC
TPM2 Software Stack Rust Wrapper
This is the lower-level wrapper that exposes a minimal, low-level C interface to Rust to TSS.
Dependencies
This crate exposes an interface for the TSS Enhanced System API and thus links to libraries that expose this interface. In order to allow proper use of the ESAPI, this FFI layer includes bindings to TCTI and MU headers, and must therefore link to all of them at build time.
The paths to the libraries are discovered using pkg-config
- make sure they
are discoverable in this way on your system. Our build script looks for
tss2-esys
, tss2-tctildr
and tss2-mu
. A minimum version of 2.3.3
is
required for all of them.
Having installed the open-source implementation libraries at /usr/local/lib
(by default), it
might happen that pkg-config
can not find them. Run the following command if that is the
case:
$ export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
The FFI bindings presented by this crate can be either those commited in the
crate under src/bindings
or generated on the fly from the library headers
found on the system, at build time. For generating the bindings at build time
please enable the generate-bindings
feature, as it is not enabled by default.
The build script will then identify the header files using pkg-config
and
generate fresh bindings from them.
NOTE: Only a limited set of bindings are committed and their target triplet
is included in the name of the file - if the triplet you require is not
available, feel free to raise a Pull Request to add it or to use build-time
generation of bindings. All the committed bindings MUST be generated from
the library version found under the vendor
submodule.
Cross compiling
Cross-compilation can be done as long as you have on your build system the TSS
libraries compiled for your target system of choice. We rely on pkg-config
to
identify the libraries which we link against. Installing tpm2-tss
does yield
.pc
files which can be used for this purpose, but depending on the exact build
environment setup, the configuration and compilation of tpm2-tss
could require
some special tailoring.
We include cross-compilation builds as a nightly check in Github Actions - you
can find them
here
as an example of the steps needed. You can find more information on using
pkg-config
when cross-compiling
here. Our
wrapper script around pkg-config
can be seen
here.
Be advised that in some cases the linker used might need to be set manually in
.cargo/config
.
Copyright 2021 Contributors to the Parsec project.