Adds a TBS TctiNameConf.

[Superhepper]

When #477 got merged it became possible to build
using a path to the tpm2-tss installation
instead of depending on pkg-config.

This made it possible to build under Windows. To
further increase the support for the windows
platform this commit moves the option for TBS
TCTI that is being introduced in #523 into a
separate commit.

This commit also updates the documentation
regarding building using an installation
folder.

[ionut-arm]

Awesome stuff :)

[wiktor-k]

Thanks for the PR. It's something that's really needed.

I tried building it on my Windows computer and after making the correct folder structure (setting up correct OpenSSL dirs and moving files around was a chore but doable) I still get the error: couldn't find any v alid shared libraries matching ['clang.dll']... (when doing --generate-bindings without that it complains about unsupported tuple).

I'm wondering how far should the instructions go explaining all steps required 🤔

Edit: just for the record I fixed that by choco install llvm

Edit 2: everything compiled and I copied dirs where necessary. I've created this sample program:

use tss_esapi::Context;
use tss_esapi::TctiNameConf;

fn main() -> tss_esapi::Result<()> {
    let mut context = Context::new(TctiNameConf::Tbs)?;

    println!("Hello, world: {:?}", context.get_tpm_property(tss_esapi::constants::PropertyTag::DayOfYear)?);
// also get_random
    Ok(())
}

But it fails at runtime:

>cargo run
   Compiling rando-tpm v0.1.0 (C:\Users\test\src\rando-tpm)
    Finished dev [unoptimized + debuginfo] target(s) in 1.62s
     Running `target\debug\rando-tpm.exe`
error: process didn't exit successfully: `target\debug\rando-tpm.exe` (exit code: 0xc0000374, STATUS_HEAP_CORRUPTION)

The tss version is 4.1.0 (actually 55 commits ahead from their master branch).

Any ideas? Maybe downgrading to 4.0.1? 🤔

I'm wondering if @uglyoldbob can test this PR. It'd be really nice :)

[uglyoldbob]

@wiktor-k I should be able to test it on Saturday morning.

[wiktor-k]

I should be able to test it on Saturday morning.

Thank you! 🙏 It would be greatly appreciated!

[Superhepper]

I tested it with a test app. And it seems to work fine for me.

https://github.com/Superhepper/rust-tss-esapi-test-app

[wiktor-k]

I tested it with a test app. And it seems to work fine for me.

https://github.com/Superhepper/rust-tss-esapi-test-app

Okay, I'm going to approve it not to have the code bitrot. Still, if you'd be able to confirm it's working even afterwards @uglyoldbob it'd be nice. All in all I don't think this PR is particularly dangerous and it clearly improves things.

[uglyoldbob]

Oh it looks like tpm2-tss was updated to supported visual studio 2019/2022. I was expecting the bundled feature to still be in this pull request. I'll have to take some more time later to do the support for that.

[Superhepper]

No as I

Oh it looks like tpm2-tss was updated to supported visual studio 2019/2022. I was expecting the bundled feature to still be in this pull request. I'll have to take some more time later to do the support for that.

No, as I mentioned. This was only for the TCTI part so that it will be possible to run things you build from an installation folder on windows as well. If you want I can try to adapt the bundled feature code as well?