tree 32921d6dcc7a1b2848fb69fb5ad6906ab413a07a
parent 3d9705d0a468405f0af392bdc53d7c40fa1e42e4
author David Benjamin <davidben@google.com> 1525485633 -0400
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1525719920 +0000

Enforce supported_versions in the second ServerHello.

We forgot to do this in our original implementation on general ecosystem
grounds. It's also mandated starting draft-26.

Just to avoid unnecessary turbulence, since draft-23 is doomed to die
anyway, condition this on our draft-28 implementation. (We don't support
24 through 27.)

We'd actually checked this already on the Go side, but the spec wants a
different alert.

Change-Id: I0014cda03d7129df0b48de077e45f8ae9fd16976
Reviewed-on: https://boringssl-review.googlesource.com/28124
Commit-Queue: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>