1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 #include "tools/rbd/ArgumentTypes.h"
5 #include "tools/rbd/Shell.h"
6 #include "tools/rbd/Utils.h"
7 #include "common/errno.h"
9 #include <boost/program_options.hpp>
15 namespace at = argument_types;
16 namespace po = boost::program_options;
18 int do_clone(librbd::RBD &rbd, librados::IoCtx &p_ioctx,
19 const char *p_name, const char *p_snapname,
20 librados::IoCtx &c_ioctx, const char *c_name,
21 librbd::ImageOptions& opts) {
22 return rbd.clone3(p_ioctx, p_name, p_snapname, c_ioctx, c_name, opts);
25 void get_arguments(po::options_description *positional,
26 po::options_description *options) {
27 at::add_snap_spec_options(positional, options, at::ARGUMENT_MODIFIER_SOURCE);
28 at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_DEST);
29 at::add_create_image_options(options, false);
32 int execute(const po::variables_map &vm) {
34 std::string pool_name;
35 std::string image_name;
36 std::string snap_name;
37 int r = utils::get_pool_image_snapshot_names(
38 vm, at::ARGUMENT_MODIFIER_SOURCE, &arg_index, &pool_name, &image_name,
39 &snap_name, utils::SNAPSHOT_PRESENCE_REQUIRED, utils::SPEC_VALIDATION_NONE);
44 std::string dst_pool_name;
45 std::string dst_image_name;
46 std::string dst_snap_name;
47 r = utils::get_pool_image_snapshot_names(
48 vm, at::ARGUMENT_MODIFIER_DEST, &arg_index, &dst_pool_name, &dst_image_name,
49 &dst_snap_name, utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_FULL);
54 librbd::ImageOptions opts;
55 r = utils::get_image_options(vm, false, &opts);
59 opts.set(RBD_IMAGE_OPTION_FORMAT, static_cast<uint64_t>(2));
61 librados::Rados rados;
62 librados::IoCtx io_ctx;
63 r = utils::init(pool_name, &rados, &io_ctx);
68 librados::IoCtx dst_io_ctx;
69 r = utils::init_io_ctx(rados, dst_pool_name, &dst_io_ctx);
75 r = do_clone(rbd, io_ctx, image_name.c_str(), snap_name.c_str(), dst_io_ctx,
76 dst_image_name.c_str(), opts);
78 std::cerr << "rbd: clone error: " << cpp_strerror(r) << std::endl;
85 {"clone"}, {}, "Clone a snapshot into a COW child image.",
86 at::get_long_features_help(), &get_arguments, &execute);