1 files changed, 87 insertions, 0 deletions
diff --git a/src/messages/MMonMgrReport.h b/src/messages/MMonMgrReport.h
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+++ b/src/messages/MMonMgrReport.h
@@ -0,0 +1,87 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2017 Greg Farnum/Red Hat <gfarnum@redhat.com>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#ifndef CEPH_MMONMGRREPORT_H
+#define CEPH_MMONMGRREPORT_H
+
+#include "messages/PaxosServiceMessage.h"
+#include "include/types.h"
+#include "include/health.h"
+#include "mon/health_check.h"
+#include "mon/PGMap.h"
+
+class MMonMgrReport
+  : public MessageInstance<MMonMgrReport, PaxosServiceMessage> {
+public:
+  friend factory;
+private:
+  static constexpr int HEAD_VERSION = 2;
+  static constexpr int COMPAT_VERSION = 1;
+
+public:
+  // PGMapDigest is in data payload
+  health_check_map_t health_checks;
+  bufferlist service_map_bl;  // encoded ServiceMap
+  std::map<std::string,ProgressEvent> progress_events;
+
+  MMonMgrReport()
+    : MessageInstance(MSG_MON_MGR_REPORT, 0, HEAD_VERSION, COMPAT_VERSION)
+  {}
+private:
+  ~MMonMgrReport() override {}
+
+public:
+  std::string_view get_type_name() const override { return "monmgrreport"; }
+
+  void print(ostream& out) const override {
+    out << get_type_name() << "(" << health_checks.checks.size() << " checks, "
+	<< progress_events.size() << " progress events)";
+  }
+
+  void encode_payload(uint64_t features) override {
+    using ceph::encode;
+    paxos_encode();
+    encode(health_checks, payload);
+    encode(service_map_bl, payload);
+    encode(progress_events, payload);
+
+    if (!HAVE_FEATURE(features, SERVER_NAUTILUS) ||
+	!HAVE_FEATURE(features, SERVER_MIMIC)) {
+      // PGMapDigest had a backwards-incompatible change between
+      // luminous and mimic, and conditionally encodes based on
+      // provided features, so reencode the one in our data payload.
+      // The mgr isn't able to do this at the time the encoded
+      // PGMapDigest is constructed because we don't know which mon we
+      // will target.  Note that this only triggers if the user
+      // upgrades ceph-mgr before ceph-mon (tsk tsk).
+      PGMapDigest digest;
+      auto p = data.cbegin();
+      decode(digest, p);
+      bufferlist bl;
+      encode(digest, bl, features);
+      set_data(bl);
+    }
+  }
+  void decode_payload() override {
+    auto p = payload.cbegin();
+    paxos_decode(p);
+    decode(health_checks, p);
+    decode(service_map_bl, p);
+    if (header.version >= 2) {
+      decode(progress_events, p);
+    }
+  }
+};
+
+#endif