8a1a5daa49
NSS only enables compatibility mode on the server if the client requested it by way of the session ID. This is slightly off as a client has no way not to request it when offering a TLS 1.2 session, but it is in the spec. So our tests are usable for other stacks, send a fake session ID in the runner by default. The existing EmptySessionID-TLS13* test asserts that BoringSSL behaves as we expect it to on empty session IDs too. The intent is that NSS will disable that test but can otherwise leave the rest enabled. Change-Id: I370bf90aba1805c2f6970ceee0d29ecf199f437d Reviewed-on: https://boringssl-review.googlesource.com/26504 Reviewed-by: Steven Valdez <svaldez@google.com> Commit-Queue: David Benjamin <davidben@google.com> CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> |
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| .. | ||
| runner | ||
| async_bio.cc | ||
| async_bio.h | ||
| bssl_shim.cc | ||
| CMakeLists.txt | ||
| fuzzer_tags.h | ||
| fuzzer.h | ||
| packeted_bio.cc | ||
| packeted_bio.h | ||
| PORTING.md | ||
| README.md | ||
| test_config.cc | ||
| test_config.h | ||
BoringSSL SSL Tests
This directory contains BoringSSL's protocol-level test suite.
Testing a TLS implementation can be difficult. We need to produce invalid but sufficiently correct handshakes to get our implementation close to its edge cases. TLS's cryptographic steps mean we cannot use a transcript and effectively need a TLS implementation on the other end. But we do not wish to litter BoringSSL with options for bugs to test against.
Instead, we use a fork of the Go crypto/tls package, heavily patched with
configurable bugs. This code, along with a test suite and harness written in Go,
lives in the runner directory. The harness runs BoringSSL via a C/C++ shim
binary which lives in this directory. All communication with the shim binary
occurs with command-line flags, sockets, and standard I/O.
This strategy also ensures we always test against a second implementation. All features should be implemented twice, once in C for BoringSSL and once in Go for testing. If possible, the Go code should be suitable for potentially upstreaming. However, sometimes test code has different needs. For example, our test DTLS code enforces strict ordering on sequence numbers and has controlled packet drop simulation.
To run the tests manually, run go test from the runner directory. It takes
command-line flags found at the top of runner/runner.go. The -help option
also works after using go test -c to make a runner.test binary first.
If adding a new test, these files may be a good starting point:
runner/runner.go: the test harness and all the individual tests.runner/common.go: contains theConfigandProtocolBugsstruct which control the Go TLS implementation's behavior.test_config.h,test_config.cc: the command-line flags which control the shim's behavior.bssl_shim.cc: the shim binary itself.
For porting the test suite to a different implementation see PORTING.md.