Misc fixes for no-sock
Reviewed-by: NRichard Levitte <levitte@openssl.org>

In most builds, we can assume that engines live in the build tree
subdirectory "engines".  This was hard coded into the tests that use
the engine ossltest.

However, that hard coding is tedious, it would need to be done in
every test recipe, and it's an incorrect assumption in some cases.

This change has us play it safe and let the build files tell the
testing framework where the engines are.
Reviewed-by: NViktor Dukhovni <viktor@openssl.org>

There are issues binding listening ports.  This may be analyzed more
thoroughly later on.
Reviewed-by: NRich Salz <rsalz@openssl.org>

We were kinda sorta using a mix of $disabled{"static-engine" and
$disabled{"dynamic-engine"} in Configure.  Let's avoid confusion,
choose one of them and stick to it.
Reviewed-by: NRich Salz <rsalz@openssl.org>

They depend on this feature because they use the engine ossltest,
which is only available as a dynamic engine.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Adapted from BoringSSL. Added a test.

The extension parsing code is already attempting to already handle this for
some individual extensions, but it is doing so inconsistently. Duplicate
efforts in individual extension parsing will be cleaned up in a follow-up.
Reviewed-by: NStephen Henson <steve@openssl.org>

If the environment variable HARNESS_ACTIVE isn't defined or
HARNESS_VERBOSE is defined, it's probable that lots of output is
desired.
Reviewed-by: NRich Salz <rsalz@openssl.org>

To be able to run tests when we've built in a directory other than
the source tree, the testing framework needs a few adjustments.

test/testlib/OpenSSL/Test.pm needs to know where it can find
shlib_wrap.sh, and a number of other tests need to be told a different
place to find engines than what they may be able to figure out on
their own.  Relying to $TOP is not enough, $SRCTOP and $BLDTOP can be
used as an alternative.

As part of this change, top_file and top_dir are removed and
srctop_file, bldtop_file, srctop_dir and bldtop_dir take their place.
Reviewed-by: NBen Laurie <ben@openssl.org>

Reviewed-by: NViktor Dukhovni <viktor@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Make sure they detect that.
Reviewed-by: NViktor Dukhovni <viktor@openssl.org>

Reviewed-by: NViktor Dukhovni <viktor@openssl.org>

If the client sends a status_request extension in the ClientHello
and the server responds with a status_request extension in the
ServerHello then normally the server will also later send a
CertificateStatus message. However this message is *optional* even
if the extensions were sent. This adds a test to ensure that if
the extensions are sent then we can still omit the message.
Reviewed-by: NViktor Dukhovni <viktor@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

This involves adding $TOP/util as perl library in test/run_tests.pl.
Reviewed-by: NRich Salz <rsalz@openssl.org>

When using an anon DH ciphersuite a client should reject a 0 value for p.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Two tests are added: one is a simple version tolerance test; the second is
a test to ensure that OpenSSL operates correctly in the case of a zero
length extensions block. The latter was broken inadvertently (now fixed)
and it would have been helpful to have a test case for it.
Reviewed-by: NRichard Levitte <levitte@openssl.org>