b7bc80a9a6
|SSL_CONFIG| is a container for bits of configuration that are unneeded after the handshake completes. By default it is retained for the life of the |SSL|, but it may be shed at the caller's option by calling SSL_set_shed_handshake_config(). This is incompatible with renegotiation, and with SSL_clear(). |SSL_CONFIG| is reachable by |ssl->config| and by |hs->config|. The latter is always non-NULL. To avoid null checks, I've changed the signature of a number of functions from |SSL*| arguments to |SSL_HANDSHAKE*| arguments. When configuration has been shed, setters that touch |SSL_CONFIG| return an error value if that is possible. Setters that return |void| do nothing. Getters that request |SSL_CONFIG| values will fail with an |assert| if the configuration has been shed. When asserts are compiled out, they will return an error value. The aim of this commit is to simplify analysis of split-handshakes by making it obvious that some bits of state have no effects beyond the handshake. It also cuts down on memory usage. Of note: |SSL_CTX| is still reachable after the configuration has been shed, and a couple things need to be retained only for the sake of post-handshake hooks. Perhaps these can be fixed in time. Change-Id: Idf09642e0518945b81a1e9fcd7331cc9cf7cc2d6 Bug: 123 Reviewed-on: https://boringssl-review.googlesource.com/27644 Commit-Queue: David Benjamin <davidben@google.com> CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> Reviewed-by: David Benjamin <davidben@google.com> |
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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.