Currently it is very easy to use the `TlsCredentialsOptions` in such a
way that it produces a memory leak. For example, the code block
```
{
TlsCredentialsOptions options;
}
```
produces a memory leak. This PR fixes up the ownership bugs in this
class and its `grpc_tls_credentials_options`, the C-core analogue.
The basic APIs for the CRL Reloading features.
This adds external types to represent CRL Providers, CRLs, and
CertificateInfo.
Internally we will use `CrlImpl` - this layer is needed to hide OpenSSL
details from the user.
GRFC - https://github.com/grpc/proposal/pull/382
Things Done
* Add external API for `CrlProvider`, `Crl`, `CertInfo` (`CertInfo` is
used during CRL lookup rather than passing the entire certificate).
* Add code paths in `ssl_transport_security` to utilize CRL providers
* Add `StaticCrlProvider`
* Refactor `crl_ssl_transport_security_test.cc` so it is more extensible
and can be used with providers
This PR is a small code change with a lot of new test data.
[In OpenSSL, there are two flags that configure CRL checks. Coping
relevant
section:](https://www.openssl.org/docs/man1.0.2/man3/X509_VERIFY_PARAM_get_depth.html)
> - X509_V_FLAG_CRL_CHECK enables CRL checking for the certificate chain
leaf certificate. An error occurs if a suitable CRL cannot be found.
> - X509_V_FLAG_CRL_CHECK_ALL enables CRL checking for the entire
certificate chain.
We currently only set `X509_V_FLAG_CRL_CHECK`, so we will only ever
check if the leaf certificate is revoked. We should check the whole
chain. I am open to making this a user configuration if we want to do it
that way, but we certainly need to be able to check the whole chain.
So, this PR contains the small code change in
`ssl_transport_security.cc` to use the `X509_V_FLAG_CRL_CHECK_ALL` flag.
Then the rest of the changes are in tests. I've added all the necessary
files to have a chain built that looks as follows
`Root CA -> Revoked Intermediate CA -> Leaf Certificate`, and added a
test for this case as well.
You can verify that on master this new test will fail (i.e. the
handshake will succeed even though the intermediate CA is revoked) by
checking out this branch, running `git checkout master --
./src/core/tsi/ssl_transport_security.cc`, then running the test.
I also slightly reorganized test/core/tsi/test_creds/ so that the CRLs
are in their own directory, which is the way our API intends to accept
CRLs.
* Refactor end2end tests to exercise each EventEngine
* fix incorrect bazel_only exclusions
* Automated change: Fix sanity tests
* microbenchmark fix
* sanitize, fix iOS flub
* Automated change: Fix sanity tests
* iOS fix
* reviewer feedback
* first pass at excluding EventEngine test expansion
Also caught a few cases where we should not test pollers, but should
test all engines. And two cases where we likely shouldn't be testing
either product.
* end2end fuzzers to be fuzzed differently via EventEngine.
* sanitize
* reviewer feedback
* remove misleading comment
* reviewer feedback: comments
* EE test_init needs to play with our build system
* fix golden file test runner
Co-authored-by: drfloob <drfloob@users.noreply.github.com>
Matthew Stevenson