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David Benjamin 4d559617cd Unflake Unclean-Shutdown-Alert on Windows. 
On Windows, if we write to our socket and then close it, the peer sometimes
doesn't get all the data. This was working for our shimShutsDown tests because
we send close_notify in parallel with the peer and sendAlert(alertCloseNotify)
did not internally return an error.

For convenience, sendAlert returns a local error for non-close_notify alerts.
Suppress that error to avoid the race condition. This makes it behave like the
other shimShutsDown tests.

Change-Id: Iad256e3ea5223285793991e2eba9c7d61f2e3ddf
Reviewed-on: https://boringssl-review.googlesource.com/7980
Reviewed-by: Adam Langley <agl@google.com>
2016-05-18 18:59:38 +00:00
..
runner Unflake Unclean-Shutdown-Alert on Windows. 2016-05-18 18:59:38 +00:00
async_bio.cc Fix DTLS asynchronous write handling. 2015-11-02 23:16:22 +00:00
async_bio.h Fix DTLS asynchronous write handling. 2015-11-02 23:16:22 +00:00
bssl_shim.cc Adding a method to change the initial DTLS retransmission timer value. 2016-05-11 22:36:26 +00:00
CMakeLists.txt Add malloc test support to unit tests. 2015-05-21 17:59:48 +00:00
packeted_bio.cc Remove OPENSSL_timeval. 2015-05-08 18:03:07 +00:00
packeted_bio.h Include <sys/time.h> in packeted_bio.h for 'timeval' 2015-12-15 18:11:18 +00:00
README.md Add a README.md for ssl/test. 2016-05-06 17:40:28 +00:00
scoped_types.h Remove std::unique_ptr dependency on bssl_shim's scoped types. 2015-03-31 23:03:06 +00:00
test_config.cc Adding a method to change the initial DTLS retransmission timer value. 2016-05-11 22:36:26 +00:00
test_config.h Adding a method to change the initial DTLS retransmission timer value. 2016-05-11 22:36:26 +00:00

README.md

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 the Config and ProtocolBugs struct 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.