History

David Benjamin 65ac997f20 Implement draft-davidben-tls-grease-01. This GREASEs cipher suites, groups, and extensions. For now, we'll always place them in a hard-coded position. We can experiment with more interesting strategies later. If we add new ciphers and curves, presumably we prefer them over current ones, so place GREASE values at the front. This prevents implementations from parsing only the first value and ignoring the rest. Add two new extensions, one empty and one non-empty. Place the empty one in front (IBM WebSphere can't handle trailing empty extensions) and the non-empty one at the end. Change-Id: If2e009936bc298cedf2a7a593ce7d5d5ddbb841a Reviewed-on: https://boringssl-review.googlesource.com/11241 Reviewed-by: Adam Langley <agl@google.com> Commit-Queue: Adam Langley <agl@google.com> CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>		2016-09-23 21:11:15 +00:00
..
runner	Implement draft-davidben-tls-grease-01.	2016-09-23 21:11:15 +00:00
async_bio.cc	Replace Scoped* heap types with bssl::UniquePtr.	2016-09-01 22:22:54 +00:00
async_bio.h	Replace Scoped* heap types with bssl::UniquePtr.	2016-09-01 22:22:54 +00:00
bssl_shim.cc	Implement draft-davidben-tls-grease-01.	2016-09-23 21:11:15 +00:00
CMakeLists.txt	Add malloc test support to unit tests.	2015-05-21 17:59:48 +00:00
packeted_bio.cc	Replace Scoped* heap types with bssl::UniquePtr.	2016-09-01 22:22:54 +00:00
packeted_bio.h	Replace Scoped* heap types with bssl::UniquePtr.	2016-09-01 22:22:54 +00:00
PORTING.md	Fix typo.	2016-08-16 18:05:47 +00:00
README.md	Adding PORTING.md for instructions on how to port the test runner	2016-08-16 17:53:28 +00:00
test_config.cc	Implement draft-davidben-tls-grease-01.	2016-09-23 21:11:15 +00:00
test_config.h	Implement draft-davidben-tls-grease-01.	2016-09-23 21:11:15 +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.

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