Move plugin code from QtNetwork to qtbase/plugins

All TLS (and non-TLS) backends that QSsl classes rely
on are now in plugins/tls (as openssl, securetransport,
schannel and certonly plugins).

For now, I have to disable some tests that were using OpenSSL
calls - this to be refactored/re-thought. These include:
qsslsocket auto-test (test-case where we work with private keys),
qsslkey auto-test (similar to qsslsocket - test-case working with
keys using OpenSSL calls).
qasn1element moved to plugins too, so its auto-test have to
be re-thought.
Since now we can have more than one working TLS-backend on a given
platform, the presence of OpenSSL also means I force this backend
as active before running tests, to make sure features implemented
only in OpenSSL-backend are tested.
OCSP auto test is disabled for now, since it heavily relies on
OpenSSL symbols (to be refactored).

[ChangeLog][QtNetwork][QSslSocket] QSslSocket by default prefers 'openssl' backend
if it is available.

[ChangeLog][QtNetwork][QSslSocket] TLS-backends are not mutually exclusive anymore,
depending on a platform, more than one TLS backend can be built. E.g., configuring
Qt with -openssl does not prevent SecureTransport or Schannel plugin from being
built.

Fixes: QTBUG-91928
Change-Id: I4c05e32f10179066bee3a518bdfdd6c4b15320c3
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/plugins/tls/CMakeLists.txt b/src/plugins/tls/CMakeLists.txt
new file mode 100644
index 0000000000..a17cda9594
--- /dev/null
+++ b/src/plugins/tls/CMakeLists.txt
@@ -0,0 +1,13 @@
+if(QT_FEATURE_securetransport)
+    add_subdirectory(securetransport)
+endif()
+
+if (QT_FEATURE_openssl OR QT_FEATURE_openssl_linked)
+    add_subdirectory(openssl)
+endif()
+
+if (QT_FEATURE_schannel)
+    add_subdirectory(schannel)
+endif()
+
+add_subdirectory(certonly)