| commit | b7bc80a9a632ab0c69598382304b14a63e8cae72 | [log] [tgz] |
|---|---|---|
| author | Matthew Braithwaite <mab@google.com> | Fri Apr 13 15:51:30 2018 -0700 |
| committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | Tue May 01 20:40:16 2018 +0000 |
| tree | 3321098360a146ae5987057d24f3137cdba9c265 | |
| parent | a2dd7818847e6a7128ca97fbc3fe8f16d12b194e [diff] |
SSL_CONFIG: new struct for sheddable handshake configuration. |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>
BoringSSL is a fork of OpenSSL that is designed to meet Google's needs.
Although BoringSSL is an open source project, it is not intended for general use, as OpenSSL is. We don't recommend that third parties depend upon it. Doing so is likely to be frustrating because there are no guarantees of API or ABI stability.
Programs ship their own copies of BoringSSL when they use it and we update everything as needed when deciding to make API changes. This allows us to mostly avoid compromises in the name of compatibility. It works for us, but it may not work for you.
BoringSSL arose because Google used OpenSSL for many years in various ways and, over time, built up a large number of patches that were maintained while tracking upstream OpenSSL. As Google's product portfolio became more complex, more copies of OpenSSL sprung up and the effort involved in maintaining all these patches in multiple places was growing steadily.
Currently BoringSSL is the SSL library in Chrome/Chromium, Android (but it's not part of the NDK) and a number of other apps/programs.
There are other files in this directory which might be helpful: