boringssl/ssl/test
David Benjamin 278b3120ee Validate ClientHellos in tests some more.
This way we'll notice if we ever generate a bad padding extension or
duplicate an extension. This did require fixing one of the JDK11 test
vectors. When I manually added a padding extension, I forgot the
contents were all zeros and incorrectly put in "padding" instead.

Change-Id: Ifec5bb01a739014ed0fdf5b49b82a6b514646e9a
Reviewed-on: https://boringssl-review.googlesource.com/c/33444
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2018-12-03 20:31:55 +00:00
..
runner Validate ClientHellos in tests some more. 2018-12-03 20:31:55 +00:00
async_bio.cc
async_bio.h
bssl_shim.cc In 0RTT mode, reverify the server certificate before sending early data. 2018-11-16 19:52:18 +00:00
CMakeLists.txt Support symbol prefixes 2018-09-06 20:07:52 +00:00
fuzzer_tags.h Fuzz SSL_serialize_handoff() and SSL_serialize_handback(). 2018-05-05 02:41:04 +00:00
fuzzer.h Remove SSL 3.0 implementation. 2018-06-28 16:54:58 +00:00
handshake_util.cc shim: don't clear environment when invoking handshaker. 2018-08-28 17:50:26 +00:00
handshake_util.h shim: perform split handshakes in a separate binary. 2018-08-01 01:44:53 +00:00
handshaker.cc handshaker: kick PRNG when resuming in UNSAFE_DETERMINISTIC_MODE. 2018-08-03 23:11:46 +00:00
packeted_bio.cc
packeted_bio.h
PORTING.md
README.md
settings_writer.cc shim: move |SettingsWriter| into its own file. 2018-07-02 22:26:28 +00:00
settings_writer.h shim: move |SettingsWriter| into its own file. 2018-07-02 22:26:28 +00:00
test_config.cc Work around a JDK 11 TLS 1.3 bug. 2018-11-21 18:22:57 +00:00
test_config.h Work around a JDK 11 TLS 1.3 bug. 2018-11-21 18:22:57 +00:00
test_state.cc shim: perform split handshakes in a separate binary. 2018-08-01 01:44:53 +00:00
test_state.h shim: perform split handshakes in a separate binary. 2018-08-01 01:44:53 +00:00

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.

For porting the test suite to a different implementation see PORTING.md.