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-rw-r--r--src/tools/rbd/action/Snap.cc889
1 files changed, 889 insertions, 0 deletions
diff --git a/src/tools/rbd/action/Snap.cc b/src/tools/rbd/action/Snap.cc
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index 00000000..70cf62da
--- /dev/null
+++ b/src/tools/rbd/action/Snap.cc
@@ -0,0 +1,889 @@
+// -*- 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/types.h"
+#include "include/stringify.h"
+#include "common/errno.h"
+#include "common/Formatter.h"
+#include "common/TextTable.h"
+#include <iostream>
+#include <boost/program_options.hpp>
+#include <boost/bind.hpp>
+
+namespace rbd {
+namespace action {
+namespace snap {
+
+static const std::string ALL_NAME("all");
+
+namespace at = argument_types;
+namespace po = boost::program_options;
+
+int do_list_snaps(librbd::Image& image, Formatter *f, bool all_snaps, librados::Rados& rados)
+{
+ std::vector<librbd::snap_info_t> snaps;
+ TextTable t;
+ int r;
+
+ r = image.snap_list(snaps);
+ if (r < 0) {
+ std::cerr << "rbd: unable to list snapshots" << std::endl;
+ return r;
+ }
+
+ if (!all_snaps) {
+ snaps.erase(remove_if(snaps.begin(),
+ snaps.end(),
+ boost::bind(utils::is_not_user_snap_namespace, &image, _1)),
+ snaps.end());
+ }
+
+ if (f) {
+ f->open_array_section("snapshots");
+ } else {
+ t.define_column("SNAPID", TextTable::LEFT, TextTable::RIGHT);
+ t.define_column("NAME", TextTable::LEFT, TextTable::LEFT);
+ t.define_column("SIZE", TextTable::LEFT, TextTable::RIGHT);
+ t.define_column("PROTECTED", TextTable::LEFT, TextTable::LEFT);
+ t.define_column("TIMESTAMP", TextTable::LEFT, TextTable::RIGHT);
+ if (all_snaps) {
+ t.define_column("NAMESPACE", TextTable::LEFT, TextTable::LEFT);
+ }
+ }
+
+ std::list<std::pair<int64_t, std::string>> pool_list;
+ rados.pool_list2(pool_list);
+ std::map<int64_t, std::string> pool_map(pool_list.begin(), pool_list.end());
+
+ for (std::vector<librbd::snap_info_t>::iterator s = snaps.begin();
+ s != snaps.end(); ++s) {
+ struct timespec timestamp;
+ bool snap_protected = false;
+ image.snap_get_timestamp(s->id, &timestamp);
+ string tt_str = "";
+ if(timestamp.tv_sec != 0) {
+ time_t tt = timestamp.tv_sec;
+ tt_str = ctime(&tt);
+ tt_str = tt_str.substr(0, tt_str.length() - 1);
+ }
+
+ librbd::snap_namespace_type_t snap_namespace;
+ r = image.snap_get_namespace_type(s->id, &snap_namespace);
+ if (r < 0) {
+ std::cerr << "rbd: unable to retrieve snap namespace" << std::endl;
+ return r;
+ }
+
+ std::string snap_namespace_name = "Unknown";
+ switch (snap_namespace) {
+ case RBD_SNAP_NAMESPACE_TYPE_USER:
+ snap_namespace_name = "user";
+ break;
+ case RBD_SNAP_NAMESPACE_TYPE_GROUP:
+ snap_namespace_name = "group";
+ break;
+ case RBD_SNAP_NAMESPACE_TYPE_TRASH:
+ snap_namespace_name = "trash";
+ break;
+ }
+
+ int get_trash_res = -ENOENT;
+ std::string trash_original_name;
+ int get_group_res = -ENOENT;
+ librbd::snap_group_namespace_t group_snap;
+ if (snap_namespace == RBD_SNAP_NAMESPACE_TYPE_GROUP) {
+ get_group_res = image.snap_get_group_namespace(s->id, &group_snap,
+ sizeof(group_snap));
+ } else if (snap_namespace == RBD_SNAP_NAMESPACE_TYPE_TRASH) {
+ get_trash_res = image.snap_get_trash_namespace(
+ s->id, &trash_original_name);
+ }
+
+ std::string protected_str = "";
+ if (snap_namespace == RBD_SNAP_NAMESPACE_TYPE_USER) {
+ r = image.snap_is_protected(s->name.c_str(), &snap_protected);
+ if (r < 0) {
+ std::cerr << "rbd: unable to retrieve snap protection" << std::endl;
+ return r;
+ }
+ }
+
+ if (f) {
+ protected_str = snap_protected ? "true" : "false";
+ f->open_object_section("snapshot");
+ f->dump_unsigned("id", s->id);
+ f->dump_string("name", s->name);
+ f->dump_unsigned("size", s->size);
+ f->dump_string("protected", protected_str);
+ f->dump_string("timestamp", tt_str);
+ if (all_snaps) {
+ f->open_object_section("namespace");
+ f->dump_string("type", snap_namespace_name);
+ if (get_group_res == 0) {
+ std::string pool_name = pool_map[group_snap.group_pool];
+ f->dump_string("pool", pool_name);
+ f->dump_string("group", group_snap.group_name);
+ f->dump_string("group snap", group_snap.group_snap_name);
+ } else if (get_trash_res == 0) {
+ f->dump_string("original_name", trash_original_name);
+ }
+ f->close_section();
+ }
+ f->close_section();
+ } else {
+ protected_str = snap_protected ? "yes" : "";
+ t << s->id << s->name << stringify(byte_u_t(s->size)) << protected_str << tt_str;
+
+ if (all_snaps) {
+ ostringstream oss;
+ oss << snap_namespace_name;
+
+ if (get_group_res == 0) {
+ std::string pool_name = pool_map[group_snap.group_pool];
+ oss << " (" << pool_name << "/"
+ << group_snap.group_name << "@"
+ << group_snap.group_snap_name << ")";
+ } else if (get_trash_res == 0) {
+ oss << " (" << trash_original_name << ")";
+ }
+
+ t << oss.str();
+ }
+ t << TextTable::endrow;
+ }
+ }
+
+ if (f) {
+ f->close_section();
+ f->flush(std::cout);
+ } else if (snaps.size()) {
+ std::cout << t;
+ }
+
+ return 0;
+}
+
+int do_add_snap(librbd::Image& image, const char *snapname)
+{
+ int r = image.snap_create(snapname);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int do_remove_snap(librbd::Image& image, const char *snapname, bool force,
+ bool no_progress)
+{
+ uint32_t flags = force? RBD_SNAP_REMOVE_FORCE : 0;
+ int r = 0;
+ utils::ProgressContext pc("Removing snap", no_progress);
+
+ r = image.snap_remove2(snapname, flags, pc);
+ if (r < 0) {
+ pc.fail();
+ return r;
+ }
+
+ pc.finish();
+ return 0;
+}
+
+int do_rollback_snap(librbd::Image& image, const char *snapname,
+ bool no_progress)
+{
+ utils::ProgressContext pc("Rolling back to snapshot", no_progress);
+ int r = image.snap_rollback_with_progress(snapname, pc);
+ if (r < 0) {
+ pc.fail();
+ return r;
+ }
+ pc.finish();
+ return 0;
+}
+
+int do_purge_snaps(librbd::Image& image, bool no_progress)
+{
+ utils::ProgressContext pc("Removing all snapshots", no_progress);
+ std::vector<librbd::snap_info_t> snaps;
+ bool is_protected = false;
+ int r = image.snap_list(snaps);
+ if (r < 0) {
+ pc.fail();
+ return r;
+ } else if (0 == snaps.size()) {
+ return 0;
+ } else {
+ list<std::string> protect;
+ snaps.erase(remove_if(snaps.begin(),
+ snaps.end(),
+ boost::bind(utils::is_not_user_snap_namespace, &image, _1)),
+ snaps.end());
+ for (auto it = snaps.begin(); it != snaps.end();) {
+ r = image.snap_is_protected(it->name.c_str(), &is_protected);
+ if (r < 0) {
+ pc.fail();
+ return r;
+ } else if (is_protected == true) {
+ protect.push_back(it->name.c_str());
+ snaps.erase(it);
+ } else {
+ ++it;
+ }
+ }
+
+ if (!protect.empty()) {
+ std::cout << "rbd: error removing snapshot(s) '" << protect << "', which "
+ << (1 == protect.size() ? "is" : "are")
+ << " protected - these must be unprotected with "
+ << "`rbd snap unprotect`."
+ << std::endl;
+ }
+ for (size_t i = 0; i < snaps.size(); ++i) {
+ r = image.snap_remove(snaps[i].name.c_str());
+ if (r < 0) {
+ pc.fail();
+ return r;
+ }
+ pc.update_progress(i + 1, snaps.size() + protect.size());
+ }
+
+ if (!protect.empty()) {
+ pc.fail();
+ } else if (snaps.size() > 0) {
+ pc.finish();
+ }
+
+ return 0;
+ }
+}
+
+int do_protect_snap(librbd::Image& image, const char *snapname)
+{
+ int r = image.snap_protect(snapname);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int do_unprotect_snap(librbd::Image& image, const char *snapname)
+{
+ int r = image.snap_unprotect(snapname);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int do_set_limit(librbd::Image& image, uint64_t limit)
+{
+ return image.snap_set_limit(limit);
+}
+
+void get_list_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+ at::add_image_id_option(options);
+ at::add_format_options(options);
+
+ std::string name = ALL_NAME + ",a";
+
+ options->add_options()
+ (name.c_str(), po::bool_switch(), "list snapshots from all namespaces");
+}
+
+int execute_list(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string namespace_name;
+ std::string image_name;
+ std::string snap_name;
+ std::string image_id;
+
+ if (vm.count(at::IMAGE_ID)) {
+ image_id = vm[at::IMAGE_ID].as<std::string>();
+ }
+
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &namespace_name,
+ &image_name, &snap_name, image_id.empty(),
+ utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ if (!image_id.empty() && !image_name.empty()) {
+ std::cerr << "rbd: trying to access image using both name and id. "
+ << std::endl;
+ return -EINVAL;
+ }
+
+ at::Format::Formatter formatter;
+ r = utils::get_formatter(vm, &formatter);
+ if (r < 0) {
+ return r;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init_and_open_image(pool_name, namespace_name, image_name,
+ image_id, "", true, &rados, &io_ctx, &image);
+ if (r < 0) {
+ return r;
+ }
+
+ bool all_snaps = vm[ALL_NAME].as<bool>();
+ r = do_list_snaps(image, formatter.get(), all_snaps, rados);
+ if (r < 0) {
+ cerr << "rbd: failed to list snapshots: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+void get_create_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_snap_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+}
+
+int execute_create(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ 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_REQUIRED,
+ utils::SPEC_VALIDATION_SNAP);
+ if (r < 0) {
+ return r;
+ }
+
+ 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 = do_add_snap(image, snap_name.c_str());
+ if (r < 0) {
+ cerr << "rbd: failed to create snapshot: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+void get_remove_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_snap_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+ at::add_image_id_option(options);
+ at::add_snap_id_option(options);
+ at::add_no_progress_option(options);
+
+ options->add_options()
+ ("force", po::bool_switch(), "flatten children and unprotect snapshot if needed.");
+}
+
+int execute_remove(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string namespace_name;
+ std::string image_name;
+ std::string snap_name;
+ std::string image_id;
+ uint64_t snap_id = CEPH_NOSNAP;
+ bool force = vm["force"].as<bool>();
+ bool no_progress = vm[at::NO_PROGRESS].as<bool>();
+
+ if (vm.count(at::IMAGE_ID)) {
+ image_id = vm[at::IMAGE_ID].as<std::string>();
+ }
+ if (vm.count(at::SNAPSHOT_ID)) {
+ snap_id = vm[at::SNAPSHOT_ID].as<uint64_t>();
+ }
+
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &namespace_name,
+ &image_name, &snap_name, image_id.empty(),
+ (snap_id == CEPH_NOSNAP ? utils::SNAPSHOT_PRESENCE_REQUIRED :
+ utils::SNAPSHOT_PRESENCE_PERMITTED),
+ utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ if (!image_id.empty() && !image_name.empty()) {
+ std::cerr << "rbd: trying to access image using both name and id."
+ << std::endl;
+ return -EINVAL;
+ } else if (!snap_name.empty() && snap_id != CEPH_NOSNAP) {
+ std::cerr << "rbd: trying to access snapshot using both name and id."
+ << std::endl;
+ return -EINVAL;
+ } else if ((force || no_progress) && snap_id != CEPH_NOSNAP) {
+ std::cerr << "rbd: force and no-progress options not permitted when "
+ << "removing by id." << std::endl;
+ return -EINVAL;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init(pool_name, namespace_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ io_ctx.set_osdmap_full_try();
+ if (image_id.empty()) {
+ r = utils::open_image(io_ctx, image_name, false, &image);
+ } else {
+ r = utils::open_image_by_id(io_ctx, image_id, false, &image);
+ }
+ if (r < 0) {
+ return r;
+ }
+
+ if (!snap_name.empty()) {
+ r = do_remove_snap(image, snap_name.c_str(), force, no_progress);
+ } else {
+ r = image.snap_remove_by_id(snap_id);
+ }
+
+ if (r < 0) {
+ if (r == -EBUSY) {
+ std::cerr << "rbd: snapshot "
+ << (snap_name.empty() ? std::string("id ") + stringify(snap_id) :
+ std::string("'") + snap_name + "'")
+ << " is protected from removal." << std::endl;
+ } else {
+ std::cerr << "rbd: failed to remove snapshot: " << cpp_strerror(r)
+ << std::endl;
+ }
+ return r;
+ }
+ return 0;
+}
+
+void get_purge_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_image_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+ at::add_image_id_option(options);
+ at::add_no_progress_option(options);
+}
+
+int execute_purge(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string namespace_name;
+ std::string image_name;
+ std::string snap_name;
+ std::string image_id;
+
+ if (vm.count(at::IMAGE_ID)) {
+ image_id = vm[at::IMAGE_ID].as<std::string>();
+ }
+
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &namespace_name,
+ &image_name, &snap_name, image_id.empty(),
+ utils::SNAPSHOT_PRESENCE_NONE, utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ if (!image_id.empty() && !image_name.empty()) {
+ std::cerr << "rbd: trying to access image using both name and id. "
+ << std::endl;
+ return -EINVAL;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init(pool_name, namespace_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ io_ctx.set_osdmap_full_try();
+ if (image_id.empty()) {
+ r = utils::open_image(io_ctx, image_name, false, &image);
+ } else {
+ r = utils::open_image_by_id(io_ctx, image_id, false, &image);
+ }
+ if (r < 0) {
+ return r;
+ }
+
+ r = do_purge_snaps(image, vm[at::NO_PROGRESS].as<bool>());
+ if (r < 0) {
+ if (r != -EBUSY) {
+ std::cerr << "rbd: removing snaps failed: " << cpp_strerror(r)
+ << std::endl;
+ }
+ return r;
+ }
+ return 0;
+}
+
+void get_rollback_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_snap_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+ at::add_no_progress_option(options);
+}
+
+int execute_rollback(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ 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_REQUIRED,
+ utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ 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 = do_rollback_snap(image, snap_name.c_str(),
+ vm[at::NO_PROGRESS].as<bool>());
+ if (r < 0) {
+ std::cerr << "rbd: rollback failed: " << cpp_strerror(r) << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+void get_protect_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_snap_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+}
+
+int execute_protect(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ 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_REQUIRED,
+ utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ 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;
+ }
+
+ bool is_protected = false;
+ r = image.snap_is_protected(snap_name.c_str(), &is_protected);
+ if (r < 0) {
+ std::cerr << "rbd: protecting snap failed: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ } else if (is_protected) {
+ std::cerr << "rbd: snap is already protected" << std::endl;
+ return -EBUSY;
+ }
+
+ r = do_protect_snap(image, snap_name.c_str());
+ if (r < 0) {
+ std::cerr << "rbd: protecting snap failed: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+void get_unprotect_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_snap_spec_options(positional, options, at::ARGUMENT_MODIFIER_NONE);
+ at::add_image_id_option(options);
+}
+
+int execute_unprotect(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string namespace_name;
+ std::string image_name;
+ std::string snap_name;
+ std::string image_id;
+
+ if (vm.count(at::IMAGE_ID)) {
+ image_id = vm[at::IMAGE_ID].as<std::string>();
+ }
+
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_NONE, &arg_index, &pool_name, &namespace_name,
+ &image_name, &snap_name, image_id.empty(),
+ utils::SNAPSHOT_PRESENCE_REQUIRED, utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+
+ if (!image_id.empty() && !image_name.empty()) {
+ std::cerr << "rbd: trying to access image using both name and id. "
+ << std::endl;
+ return -EINVAL;
+ }
+
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ r = utils::init(pool_name, namespace_name, &rados, &io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ io_ctx.set_osdmap_full_try();
+ if (image_id.empty()) {
+ r = utils::open_image(io_ctx, image_name, false, &image);
+ } else {
+ r = utils::open_image_by_id(io_ctx, image_id, false, &image);
+ }
+ if (r < 0) {
+ return r;
+ }
+
+ bool is_protected = false;
+ r = image.snap_is_protected(snap_name.c_str(), &is_protected);
+ if (r < 0) {
+ std::cerr << "rbd: unprotecting snap failed: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ } else if (!is_protected) {
+ std::cerr << "rbd: snap is already unprotected" << std::endl;
+ return -EINVAL;
+ }
+
+ r = do_unprotect_snap(image, snap_name.c_str());
+ if (r < 0) {
+ std::cerr << "rbd: unprotecting snap failed: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+void get_set_limit_arguments(po::options_description *pos,
+ po::options_description *opt) {
+ at::add_image_spec_options(pos, opt, at::ARGUMENT_MODIFIER_NONE);
+ at::add_limit_option(opt);
+}
+
+int execute_set_limit(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string namespace_name;
+ std::string image_name;
+ std::string snap_name;
+ uint64_t limit;
+
+ 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;
+ }
+
+ if (vm.count(at::LIMIT)) {
+ limit = vm[at::LIMIT].as<uint64_t>();
+ } else {
+ std::cerr << "rbd: must specify --limit <num>" << std::endl;
+ return -ERANGE;
+ }
+
+ 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 = do_set_limit(image, limit);
+ if (r < 0) {
+ std::cerr << "rbd: setting snapshot limit failed: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+void get_clear_limit_arguments(po::options_description *pos,
+ po::options_description *opt) {
+ at::add_image_spec_options(pos, opt, at::ARGUMENT_MODIFIER_NONE);
+}
+
+int execute_clear_limit(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ 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;
+ }
+
+ 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 = do_set_limit(image, UINT64_MAX);
+ if (r < 0) {
+ std::cerr << "rbd: clearing snapshot limit failed: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+void get_rename_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_snap_spec_options(positional, options, at::ARGUMENT_MODIFIER_SOURCE);
+ at::add_snap_spec_options(positional, options, at::ARGUMENT_MODIFIER_DEST);
+}
+
+int execute_rename(const po::variables_map &vm,
+ const std::vector<std::string> &ceph_global_init_args) {
+ size_t arg_index = 0;
+ std::string pool_name;
+ std::string namespace_name;
+ std::string image_name;
+ std::string src_snap_name;
+ int r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_SOURCE, &arg_index, &pool_name, &namespace_name,
+ &image_name, &src_snap_name, true, utils::SNAPSHOT_PRESENCE_REQUIRED,
+ utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return -r;
+ }
+
+ std::string dest_pool_name(pool_name);
+ std::string dest_namespace_name(namespace_name);
+ std::string dest_image_name;
+ std::string dest_snap_name;
+ r = utils::get_pool_image_snapshot_names(
+ vm, at::ARGUMENT_MODIFIER_DEST, &arg_index, &dest_pool_name,
+ &dest_namespace_name, &dest_image_name, &dest_snap_name, true,
+ utils::SNAPSHOT_PRESENCE_REQUIRED, utils::SPEC_VALIDATION_SNAP);
+ if (r < 0) {
+ return -r;
+ }
+
+ if (pool_name != dest_pool_name) {
+ std::cerr << "rbd: source and destination pool must be the same"
+ << std::endl;
+ return -EINVAL;
+ } else if (namespace_name != dest_namespace_name) {
+ std::cerr << "rbd: source and destination namespace must be the same"
+ << std::endl;
+ return -EINVAL;
+ } else if (image_name != dest_image_name) {
+ std::cerr << "rbd: source and destination image name must be the same"
+ << std::endl;
+ return -EINVAL;
+ }
+
+ 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.snap_rename(src_snap_name.c_str(), dest_snap_name.c_str());
+ if (r < 0) {
+ std::cerr << "rbd: renaming snap failed: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+Shell::Action action_list(
+ {"snap", "list"}, {"snap", "ls"}, "Dump list of image snapshots.", "",
+ &get_list_arguments, &execute_list);
+Shell::Action action_create(
+ {"snap", "create"}, {"snap", "add"}, "Create a snapshot.", "",
+ &get_create_arguments, &execute_create);
+Shell::Action action_remove(
+ {"snap", "remove"}, {"snap", "rm"}, "Delete a snapshot.", "",
+ &get_remove_arguments, &execute_remove);
+Shell::Action action_purge(
+ {"snap", "purge"}, {}, "Delete all unprotected snapshots.", "",
+ &get_purge_arguments, &execute_purge);
+Shell::Action action_rollback(
+ {"snap", "rollback"}, {"snap", "revert"}, "Rollback image to snapshot.", "",
+ &get_rollback_arguments, &execute_rollback);
+Shell::Action action_protect(
+ {"snap", "protect"}, {}, "Prevent a snapshot from being deleted.", "",
+ &get_protect_arguments, &execute_protect);
+Shell::Action action_unprotect(
+ {"snap", "unprotect"}, {}, "Allow a snapshot to be deleted.", "",
+ &get_unprotect_arguments, &execute_unprotect);
+Shell::Action action_set_limit(
+ {"snap", "limit", "set"}, {}, "Limit the number of snapshots.", "",
+ &get_set_limit_arguments, &execute_set_limit);
+Shell::Action action_clear_limit(
+ {"snap", "limit", "clear"}, {}, "Remove snapshot limit.", "",
+ &get_clear_limit_arguments, &execute_clear_limit);
+Shell::Action action_rename(
+ {"snap", "rename"}, {}, "Rename a snapshot.", "",
+ &get_rename_arguments, &execute_rename);
+
+} // namespace snap
+} // namespace action
+} // namespace rbd
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-14 15:30:58 +0000