1 files changed, 116 insertions, 0 deletions
diff --git a/src/tools/rbd/action/Feature.cc b/src/tools/rbd/action/Feature.cc
new file mode 100644
index 000000000..13a7b6ea7
--- /dev/null
+++ b/src/tools/rbd/action/Feature.cc
@@ -0,0 +1,116 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "tools/rbd/ArgumentTypes.h"
+#include "tools/rbd/Shell.h"
+#include "tools/rbd/Utils.h"
+#include "include/stringify.h"
+#include "common/errno.h"
+#include <iostream>
+#include <map>
+#include <boost/program_options.hpp>
+
+namespace rbd {
+namespace action {
+namespace feature {
+
+namespace at = argument_types;
+namespace po = boost::program_options;
+
+void get_arguments(po::options_description *positional,
+                   po::options_description *options, bool enabled) {
+  at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+  positional->add_options()
+    ("features", po::value<at::ImageFeatures>()->multitoken(),
+     ("image features\n" + at::get_short_features_help(false)).c_str());
+  if (enabled) {
+    at::add_create_journal_options(options);
+  }
+}
+
+void get_arguments_disable(po::options_description *positional,
+			   po::options_description *options) {
+  get_arguments(positional, options, false);
+}
+
+void get_arguments_enable(po::options_description *positional,
+			  po::options_description *options) {
+  get_arguments(positional, options, true);
+}
+
+int execute(const po::variables_map &vm, bool enabled) {
+  size_t arg_index = 0;
+  std::string pool_name;
+  std::string namespace_name;
+  std::string image_name;
+  std::string snap_name;
+  int r = utils::get_pool_image_snapshot_names(
+    vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &namespace_name,
+    &image_name, &snap_name, true, utils::SNAPSHOT_PRESENCE_NONE,
+    utils::SPEC_VALIDATION_NONE);
+  if (r < 0) {
+    return r;
+  }
+
+  librbd::ImageOptions opts;
+  r = utils::get_journal_options(vm, &opts);
+  if (r < 0) {
+    return r;
+  }
+
+  std::vector<std::string> feature_names;
+  if (vm.count(at::POSITIONAL_ARGUMENTS)) {
+    const std::vector<std::string> &args =
+      vm[at::POSITIONAL_ARGUMENTS].as<std::vector<std::string> >();
+    feature_names.insert(feature_names.end(), args.begin() + arg_index,
+                         args.end());
+  }
+
+  if (feature_names.empty()) {
+    std::cerr << "rbd: at least one feature name must be specified"
+              << std::endl;
+    return -EINVAL;
+  }
+
+  boost::any features_any(static_cast<uint64_t>(0));
+  at::ImageFeatures image_features;
+  at::validate(features_any, feature_names, &image_features, 0);
+
+  librados::Rados rados;
+  librados::IoCtx io_ctx;
+  librbd::Image image;
+  r = utils::init_and_open_image(pool_name, namespace_name, image_name, "", "",
+                                 false, &rados, &io_ctx, &image);
+  if (r < 0) {
+    return r;
+  }
+
+  r = image.update_features(boost::any_cast<uint64_t>(features_any), enabled);
+  if (r < 0) {
+    std::cerr << "rbd: failed to update image features: " << cpp_strerror(r)
+              << std::endl;
+    return r;
+  }
+  return 0;
+}
+
+int execute_disable(const po::variables_map &vm,
+                    const std::vector<std::string> &ceph_global_init_args) {
+  return execute(vm, false);
+}
+
+int execute_enable(const po::variables_map &vm,
+                   const std::vector<std::string> &ceph_global_init_args) {
+  return execute(vm, true);
+}
+
+Shell::Action action_disable(
+  {"feature", "disable"}, {}, "Disable the specified image feature.", "",
+  &get_arguments_disable, &execute_disable);
+Shell::Action action_enable(
+  {"feature", "enable"}, {}, "Enable the specified image feature.", "",
+  &get_arguments_enable, &execute_enable);
+
+} // namespace feature
+} // namespace action
+} // namespace rbd