Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/src/tools/rbd_mirror/image_replayer/Utils.cc b/src/tools/rbd_mirror/image_replayer/Utils.cc
new file mode 100644
index 00000000..eda0179f
--- /dev/null
+++ b/src/tools/rbd_mirror/image_replayer/Utils.cc
@@ -0,0 +1,50 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "tools/rbd_mirror/image_replayer/Utils.h"
+#include "common/debug.h"
+#include "common/errno.h"
+#include "cls/journal/cls_journal_types.h"
+#include "librbd/journal/Types.h"
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rbd_mirror
+#undef dout_prefix
+#define dout_prefix *_dout << "rbd::mirror::image_replayer::util::" \
+                           << __func__ << ": "
+
+namespace rbd {
+namespace mirror {
+namespace image_replayer {
+namespace util {
+
+bool decode_client_meta(const cls::journal::Client& client,
+                        librbd::journal::MirrorPeerClientMeta* client_meta) {
+  dout(15) << dendl;
+
+  librbd::journal::ClientData client_data;
+  auto it = client.data.cbegin();
+  try {
+    decode(client_data, it);
+  } catch (const buffer::error &err) {
+    derr << "failed to decode client meta data: " << err.what() << dendl;
+    return false;
+  }
+
+  auto local_client_meta = boost::get<librbd::journal::MirrorPeerClientMeta>(
+    &client_data.client_meta);
+  if (local_client_meta == nullptr) {
+    derr << "unknown peer registration" << dendl;
+    return false;
+  }
+
+  *client_meta = *local_client_meta;
+  dout(15) << "client found: client_meta=" << *client_meta << dendl;
+  return true;
+}
+
+} // namespace util
+} // namespace image_replayer
+} // namespace mirror
+} // namespace rbd
+