build: Silence deprecation warnings from OpenSSL 3

The OpenSSL developers suggest that anyone wishing to continue using
low-level functions may either live with the warnings, silence them,
or switch to high level functions.

As high level functions do their own memory allocation, switching to
them may lead to performance regressions.

We do not wish to have deprecation warnings filling up our compiler
outputs when searching for other messages.

So silencing the warnings, at least for now, seems the least bad option.

Signed-off-by: Adam C. Emerson <aemerson@redhat.com>

src/auth/Crypto.cc

@@ -33,13 +33,20 @@
 #include "common/debug.h"
 #include <errno.h>
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+
 using std::ostringstream;
 using std::string;
 
 using ceph::bufferlist;
 using ceph::bufferptr;
 using ceph::Formatter;
 
+
 // use getentropy() if available. it uses the same source of randomness
 // as /dev/urandom without the filesystem overhead
 #ifdef HAVE_GETENTROPY
@@ -603,3 +610,6 @@ CryptoHandler *CryptoHandler::create(int type)
     return NULL;
   }
 }
+
+#pragma clang diagnostic pop
+#pragma GCC diagnostic pop

src/common/ceph_crypto.cc

@@ -27,6 +27,12 @@
 #  include <openssl/err.h>
 #endif /* OPENSSL_VERSION_NUMBER < 0x10100000L */
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+
 namespace TOPNSPC::crypto::ssl {
 
 #if OPENSSL_VERSION_NUMBER < 0x10100000L
@@ -213,3 +219,6 @@ void ssl::OpenSSLDigest::Final(unsigned char *digest) {
 }
 
 }
+
+#pragma clang diagnostic pop
+#pragma GCC diagnostic pop

src/common/ceph_crypto.h

@@ -22,6 +22,12 @@
 
 #include "include/ceph_assert.h"
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+
 extern "C" {
   const EVP_MD *EVP_md5(void);
   const EVP_MD *EVP_sha1(void);
@@ -202,4 +208,7 @@ auto digest(const ceph::buffer::list& bl)
 }
 }
 
+#pragma clang diagnostic pop
+#pragma GCC diagnostic pop
+
 #endif

src/common/openssl_opts_handler.cc

@@ -113,7 +113,14 @@ void load_module(const string &engine_conf)
   }
 
   OPENSSL_load_builtin_modules();
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
   ENGINE_load_builtin_engines();
+#pragma clang diagnostic pop
+#pragma GCC diagnostic pop
 
   if (CONF_modules_load(
           conf, nullptr,

src/rgw/rgw_rest_sts.h

@@ -8,9 +8,17 @@
 #include "rgw_rest.h"
 #include "rgw_sts.h"
 #include "rgw_web_idp.h"
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
 #include "jwt-cpp/jwt.h"
+#pragma clang diagnostic pop
+#pragma GCC diagnostic pop
 #include "rgw_oidc_provider.h"
 
+
 namespace rgw::auth::sts {
 
 class WebTokenEngine : public rgw::auth::Engine {
@@ -227,3 +235,4 @@ class RGWRESTMgr_STS : public RGWRESTMgr {
                                const rgw::auth::StrategyRegistry&,
                                const std::string&) override;
 };
+