--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "tools/rbd/Utils.h"
+#include "include/assert.h"
+#include "include/Context.h"
+#include "include/encoding.h"
+#include "common/common_init.h"
+#include "include/stringify.h"
+#include "include/rbd/features.h"
+#include "common/config.h"
+#include "common/errno.h"
+#include "common/safe_io.h"
+#include "global/global_context.h"
+#include <iostream>
+#include <boost/regex.hpp>
+#include <boost/algorithm/string.hpp>
+#include <boost/lexical_cast.hpp>
+
+namespace rbd {
+namespace utils {
+
+namespace at = argument_types;
+namespace po = boost::program_options;
+
+int ProgressContext::update_progress(uint64_t offset, uint64_t total) {
+ if (progress) {
+ int pc = total ? (offset * 100ull / total) : 0;
+ if (pc != last_pc) {
+ cerr << "\r" << operation << ": "
+ << pc << "% complete...";
+ cerr.flush();
+ last_pc = pc;
+ }
+ }
+ return 0;
+}
+
+void ProgressContext::finish() {
+ if (progress) {
+ cerr << "\r" << operation << ": 100% complete...done." << std::endl;
+ }
+}
+
+void ProgressContext::fail() {
+ if (progress) {
+ cerr << "\r" << operation << ": " << last_pc << "% complete...failed."
+ << std::endl;
+ }
+}
+
+void aio_context_callback(librbd::completion_t completion, void *arg)
+{
+ librbd::RBD::AioCompletion *aio_completion =
+ reinterpret_cast<librbd::RBD::AioCompletion*>(completion);
+ Context *context = reinterpret_cast<Context *>(arg);
+ context->complete(aio_completion->get_return_value());
+ aio_completion->release();
+}
+
+int read_string(int fd, unsigned max, std::string *out) {
+ char buf[4];
+
+ int r = safe_read_exact(fd, buf, 4);
+ if (r < 0)
+ return r;
+
+ bufferlist bl;
+ bl.append(buf, 4);
+ bufferlist::iterator p = bl.begin();
+ uint32_t len;
+ ::decode(len, p);
+ if (len > max)
+ return -EINVAL;
+
+ char sbuf[len];
+ r = safe_read_exact(fd, sbuf, len);
+ if (r < 0)
+ return r;
+ out->assign(sbuf, len);
+ return len;
+}
+
+int extract_spec(const std::string &spec, std::string *pool_name,
+ std::string *image_name, std::string *snap_name,
+ SpecValidation spec_validation) {
+ if (!g_ceph_context->_conf->get_val<bool>("rbd_validate_names")) {
+ spec_validation = SPEC_VALIDATION_NONE;
+ }
+
+ boost::regex pattern;
+ switch (spec_validation) {
+ case SPEC_VALIDATION_FULL:
+ // disallow "/" and "@" in image and snap name
+ pattern = "^(?:([^/@]+)/)?([^/@]+)(?:@([^/@]+))?$";
+ break;
+ case SPEC_VALIDATION_SNAP:
+ // disallow "/" and "@" in snap name
+ pattern = "^(?:([^/]+)/)?([^@]+)(?:@([^/@]+))?$";
+ break;
+ case SPEC_VALIDATION_NONE:
+ // relaxed pattern assumes pool is before first "/" and snap
+ // name is after first "@"
+ pattern = "^(?:([^/]+)/)?([^@]+)(?:@(.+))?$";
+ break;
+ default:
+ assert(false);
+ break;
+ }
+
+ boost::smatch match;
+ if (!boost::regex_match(spec, match, pattern)) {
+ std::cerr << "rbd: invalid spec '" << spec << "'" << std::endl;
+ return -EINVAL;
+ }
+
+ if (pool_name != nullptr && match[1].matched) {
+ *pool_name = match[1];
+ }
+ if (image_name != nullptr) {
+ *image_name = match[2];
+ }
+ if (snap_name != nullptr && match[3].matched) {
+ *snap_name = match[3];
+ }
+ return 0;
+}
+
+int extract_group_spec(const std::string &spec,
+ std::string *pool_name,
+ std::string *group_name) {
+ boost::regex pattern;
+ pattern = "^(?:([^/]+)/)?(.+)?$";
+
+ boost::smatch match;
+ if (!boost::regex_match(spec, match, pattern)) {
+ std::cerr << "rbd: invalid spec '" << spec << "'" << std::endl;
+ return -EINVAL;
+ }
+
+ if (pool_name != nullptr && match[1].matched) {
+ *pool_name = match[1];
+ }
+ if (group_name != nullptr) {
+ *group_name = match[2];
+ }
+
+ return 0;
+}
+
+int extract_image_id_spec(const std::string &spec, std::string *pool_name,
+ std::string *image_id) {
+ boost::regex pattern;
+ pattern = "^(?:([^/]+)/)?(.+)?$";
+
+ boost::smatch match;
+ if (!boost::regex_match(spec, match, pattern)) {
+ std::cerr << "rbd: invalid spec '" << spec << "'" << std::endl;
+ return -EINVAL;
+ }
+
+ if (pool_name != nullptr && match[1].matched) {
+ *pool_name = match[1];
+ }
+ if (image_id != nullptr) {
+ *image_id = match[2];
+ }
+
+ return 0;
+}
+
+std::string get_positional_argument(const po::variables_map &vm, size_t index) {
+ if (vm.count(at::POSITIONAL_ARGUMENTS) == 0) {
+ return "";
+ }
+
+ const std::vector<std::string> &args =
+ boost::any_cast<std::vector<std::string> >(
+ vm[at::POSITIONAL_ARGUMENTS].value());
+ if (index < args.size()) {
+ return args[index];
+ }
+ return "";
+}
+
+std::string get_default_pool_name() {
+ return g_ceph_context->_conf->get_val<std::string>("rbd_default_pool");
+}
+
+std::string get_pool_name(const po::variables_map &vm, size_t *arg_index) {
+ std::string pool_name;
+ if (vm.count(at::POOL_NAME)) {
+ pool_name = vm[at::POOL_NAME].as<std::string>();
+ } else {
+ pool_name = get_positional_argument(vm, *arg_index);
+ if (!pool_name.empty()) {
+ ++(*arg_index);
+ }
+ }
+
+ if (pool_name.empty()) {
+ pool_name = get_default_pool_name();
+ }
+ return pool_name;
+}
+
+int get_special_pool_group_names(const po::variables_map &vm,
+ size_t *arg_index,
+ std::string *group_pool_name,
+ std::string *group_name) {
+ if (nullptr == group_pool_name) return -EINVAL;
+ if (nullptr == group_name) return -EINVAL;
+ std::string pool_key = at::POOL_NAME;
+
+ std::string group_pool_key = "group-" + at::POOL_NAME;
+ std::string group_key = at::GROUP_NAME;
+
+ if (vm.count(group_pool_key)) {
+ *group_pool_name = vm[group_pool_key].as<std::string>();
+ }
+
+ if (vm.count(group_key)) {
+ *group_name = vm[group_key].as<std::string>();
+ }
+
+ int r;
+ if (group_name->empty()) {
+ std::string spec = utils::get_positional_argument(vm, (*arg_index)++);
+ if (!spec.empty()) {
+ r = utils::extract_group_spec(spec, group_pool_name, group_name);
+ if (r < 0) {
+ return r;
+ }
+ }
+ }
+
+ if (group_pool_name->empty() && vm.count(pool_key)) {
+ *group_pool_name = vm[pool_key].as<std::string>();
+ }
+
+ if (group_pool_name->empty()) {
+ *group_pool_name = get_default_pool_name();
+ }
+
+ if (group_name->empty()) {
+ std::cerr << "rbd: consistency group name was not specified" << std::endl;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int get_special_pool_image_names(const po::variables_map &vm,
+ size_t *arg_index,
+ std::string *image_pool_name,
+ std::string *image_name) {
+ if (nullptr == image_pool_name) return -EINVAL;
+ if (nullptr == image_name) return -EINVAL;
+
+ std::string pool_key = at::POOL_NAME;
+
+ std::string image_pool_key = "image-" + at::POOL_NAME;
+ std::string image_key = at::IMAGE_NAME;
+
+ if (vm.count(image_pool_key)) {
+ *image_pool_name = vm[image_pool_key].as<std::string>();
+ }
+
+ if (vm.count(image_key)) {
+ *image_name = vm[image_key].as<std::string>();
+ }
+
+ int r;
+ if (image_name->empty()) {
+ std::string spec = utils::get_positional_argument(vm, (*arg_index)++);
+ if (!spec.empty()) {
+ r = utils::extract_spec(spec, image_pool_name,
+ image_name, nullptr,
+ utils::SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+ }
+ }
+
+ if (image_pool_name->empty() && vm.count(pool_key)) {
+ *image_pool_name = vm[pool_key].as<std::string>();
+ }
+
+ if (image_pool_name->empty()) {
+ *image_pool_name = get_default_pool_name();
+ }
+
+ if (image_name->empty()) {
+ std::cerr << "rbd: image name was not specified" << std::endl;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int get_pool_image_id(const po::variables_map &vm,
+ size_t *spec_arg_index,
+ std::string *pool_name,
+ std::string *image_id) {
+
+ if (vm.count(at::POOL_NAME) && pool_name != nullptr) {
+ *pool_name = vm[at::POOL_NAME].as<std::string>();
+ }
+ if (vm.count(at::IMAGE_ID) && image_id != nullptr) {
+ *image_id = vm[at::IMAGE_ID].as<std::string>();
+ }
+
+ int r;
+ if (image_id != nullptr && spec_arg_index != nullptr && image_id->empty()) {
+ std::string spec = get_positional_argument(vm, (*spec_arg_index)++);
+ if (!spec.empty()) {
+ r = extract_image_id_spec(spec, pool_name, image_id);
+ if (r < 0) {
+ return r;
+ }
+ }
+ }
+
+ if (pool_name != nullptr && pool_name->empty()) {
+ *pool_name = get_default_pool_name();
+ }
+
+ if (image_id != nullptr && image_id->empty()) {
+ std::cerr << "rbd: image id was not specified" << std::endl;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int get_pool_group_names(const po::variables_map &vm,
+ at::ArgumentModifier mod,
+ size_t *spec_arg_index,
+ std::string *pool_name,
+ std::string *group_name) {
+ std::string pool_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_POOL_NAME : at::POOL_NAME);
+ std::string group_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_GROUP_NAME : at::GROUP_NAME);
+
+ if (vm.count(pool_key) && pool_name != nullptr) {
+ *pool_name = vm[pool_key].as<std::string>();
+ }
+ if (vm.count(group_key) && group_name != nullptr) {
+ *group_name = vm[group_key].as<std::string>();
+ }
+
+ int r;
+ if (group_name != nullptr && spec_arg_index != nullptr &&
+ group_name->empty()) {
+ std::string spec = get_positional_argument(vm, (*spec_arg_index)++);
+ if (!spec.empty()) {
+ r = extract_group_spec(spec, pool_name, group_name);
+ if (r < 0) {
+ return r;
+ }
+ }
+ }
+
+ if (pool_name != nullptr && pool_name->empty()) {
+ *pool_name = get_default_pool_name();
+ }
+
+ if (group_name != nullptr && group_name->empty()) {
+ std::string prefix = at::get_description_prefix(mod);
+ std::cerr << "rbd: "
+ << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
+ << "group name was not specified" << std::endl;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int get_pool_image_snapshot_names(const po::variables_map &vm,
+ at::ArgumentModifier mod,
+ size_t *spec_arg_index,
+ std::string *pool_name,
+ std::string *image_name,
+ std::string *snap_name,
+ SnapshotPresence snapshot_presence,
+ SpecValidation spec_validation,
+ bool image_required) {
+ std::string pool_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_POOL_NAME : at::POOL_NAME);
+ std::string image_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_IMAGE_NAME : at::IMAGE_NAME);
+ std::string snap_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_SNAPSHOT_NAME : at::SNAPSHOT_NAME);
+
+ if (vm.count(pool_key) && pool_name != nullptr) {
+ *pool_name = vm[pool_key].as<std::string>();
+ }
+ if (vm.count(image_key) && image_name != nullptr) {
+ *image_name = vm[image_key].as<std::string>();
+ }
+ if (vm.count(snap_key) && snap_name != nullptr) {
+ *snap_name = vm[snap_key].as<std::string>();
+ }
+
+ int r;
+ if (image_name != nullptr && !image_name->empty()) {
+ // despite the separate pool and snapshot name options,
+ // we can also specify them via the image option
+ std::string image_name_copy(*image_name);
+ r = extract_spec(image_name_copy, pool_name, image_name, snap_name,
+ spec_validation);
+ if (r < 0) {
+ return r;
+ }
+ }
+
+ if (image_name != nullptr && spec_arg_index != nullptr &&
+ image_name->empty()) {
+ std::string spec = get_positional_argument(vm, (*spec_arg_index)++);
+ if (!spec.empty()) {
+ r = extract_spec(spec, pool_name, image_name, snap_name, spec_validation);
+ if (r < 0) {
+ return r;
+ }
+ }
+ }
+
+ if (pool_name != nullptr && pool_name->empty()) {
+ *pool_name = get_default_pool_name();
+ }
+
+ if (image_name != nullptr && image_required && image_name->empty()) {
+ std::string prefix = at::get_description_prefix(mod);
+ std::cerr << "rbd: "
+ << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
+ << "image name was not specified" << std::endl;
+ return -EINVAL;
+ }
+
+ //Validate pool name while creating/renaming/copying/cloning/importing/etc
+ if (spec_validation == SPEC_VALIDATION_FULL) {
+ boost::regex pattern("^[^@/]+?$");
+ if (!boost::regex_match (*pool_name, pattern)) {
+ std::cerr << "rbd: invalid pool name '" << *pool_name << "'" << std::endl;
+ return -EINVAL;
+ }
+ }
+
+ if (snap_name != nullptr) {
+ r = validate_snapshot_name(mod, *snap_name, snapshot_presence,
+ spec_validation);
+ if (r < 0) {
+ return r;
+ }
+ }
+ return 0;
+}
+
+int get_pool_snapshot_names(const po::variables_map &vm,
+ at::ArgumentModifier mod,
+ size_t *spec_arg_index,
+ std::string *pool_name,
+ std::string *snap_name,
+ SnapshotPresence snapshot_presence,
+ SpecValidation spec_validation) {
+ std::string pool_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_POOL_NAME : at::POOL_NAME);
+ std::string snap_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_SNAPSHOT_NAME : at::SNAPSHOT_NAME);
+
+ if (vm.count(pool_key) && pool_name != nullptr) {
+ *pool_name = vm[pool_key].as<std::string>();
+ }
+ if (vm.count(snap_key) && snap_name != nullptr) {
+ *snap_name = vm[snap_key].as<std::string>();
+ }
+
+ if (pool_name != nullptr && pool_name->empty()) {
+ *pool_name = get_default_pool_name();
+ }
+
+ if (snap_name != nullptr) {
+ int r = validate_snapshot_name(mod, *snap_name, snapshot_presence,
+ spec_validation);
+ if (r < 0) {
+ return r;
+ }
+ }
+ return 0;
+}
+
+int get_pool_journal_names(const po::variables_map &vm,
+ at::ArgumentModifier mod,
+ size_t *spec_arg_index,
+ std::string *pool_name,
+ std::string *journal_name) {
+ std::string pool_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_POOL_NAME : at::POOL_NAME);
+ std::string image_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_IMAGE_NAME : at::IMAGE_NAME);
+ std::string journal_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_JOURNAL_NAME : at::JOURNAL_NAME);
+
+ if (vm.count(pool_key) && pool_name != nullptr) {
+ *pool_name = vm[pool_key].as<std::string>();
+ }
+ if (vm.count(journal_key) && journal_name != nullptr) {
+ *journal_name = vm[journal_key].as<std::string>();
+ }
+
+ std::string image_name;
+ if (vm.count(image_key)) {
+ image_name = vm[image_key].as<std::string>();
+ }
+
+ int r;
+ if (journal_name != nullptr && !journal_name->empty()) {
+ // despite the separate pool option,
+ // we can also specify them via the journal option
+ std::string journal_name_copy(*journal_name);
+ r = extract_spec(journal_name_copy, pool_name, journal_name, nullptr,
+ SPEC_VALIDATION_FULL);
+ if (r < 0) {
+ return r;
+ }
+ }
+
+ if (!image_name.empty()) {
+ // despite the separate pool option,
+ // we can also specify them via the image option
+ std::string image_name_copy(image_name);
+ r = extract_spec(image_name_copy, pool_name, &image_name, nullptr,
+ SPEC_VALIDATION_NONE);
+ if (r < 0) {
+ return r;
+ }
+ }
+
+ if (journal_name != nullptr && spec_arg_index != nullptr &&
+ journal_name->empty()) {
+ std::string spec = get_positional_argument(vm, (*spec_arg_index)++);
+ if (!spec.empty()) {
+ r = extract_spec(spec, pool_name, journal_name, nullptr,
+ SPEC_VALIDATION_FULL);
+ if (r < 0) {
+ return r;
+ }
+ }
+ }
+
+ if (pool_name != nullptr && pool_name->empty()) {
+ *pool_name = get_default_pool_name();
+ }
+
+ if (pool_name != nullptr && journal_name != nullptr &&
+ journal_name->empty() && !image_name.empty()) {
+ // Try to get journal name from image info.
+ librados::Rados rados;
+ librados::IoCtx io_ctx;
+ librbd::Image image;
+ int r = init_and_open_image(*pool_name, image_name, "", "", true, &rados,
+ &io_ctx, &image);
+ if (r < 0) {
+ std::cerr << "rbd: failed to open image " << image_name
+ << " to get journal name: " << cpp_strerror(r) << std::endl;
+ return r;
+ }
+
+ uint64_t features;
+ r = image.features(&features);
+ if (r < 0) {
+ return r;
+ }
+ if ((features & RBD_FEATURE_JOURNALING) == 0) {
+ std::cerr << "rbd: journaling is not enabled for image " << image_name
+ << std::endl;
+ return -EINVAL;
+ }
+ *journal_name = image_id(image);
+ }
+
+ if (journal_name != nullptr && journal_name->empty()) {
+ std::string prefix = at::get_description_prefix(mod);
+ std::cerr << "rbd: "
+ << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
+ << "journal was not specified" << std::endl;
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int validate_snapshot_name(at::ArgumentModifier mod,
+ const std::string &snap_name,
+ SnapshotPresence snapshot_presence,
+ SpecValidation spec_validation) {
+ std::string prefix = at::get_description_prefix(mod);
+ switch (snapshot_presence) {
+ case SNAPSHOT_PRESENCE_PERMITTED:
+ break;
+ case SNAPSHOT_PRESENCE_NONE:
+ if (!snap_name.empty()) {
+ std::cerr << "rbd: "
+ << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
+ << "snapname specified for a command that doesn't use it"
+ << std::endl;
+ return -EINVAL;
+ }
+ break;
+ case SNAPSHOT_PRESENCE_REQUIRED:
+ if (snap_name.empty()) {
+ std::cerr << "rbd: "
+ << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
+ << "snap name was not specified" << std::endl;
+ return -EINVAL;
+ }
+ break;
+ }
+
+ if (spec_validation == SPEC_VALIDATION_SNAP) {
+ // disallow "/" and "@" in snap name
+ boost::regex pattern("^[^@/]*?$");
+ if (!boost::regex_match (snap_name, pattern)) {
+ std::cerr << "rbd: invalid snap name '" << snap_name << "'" << std::endl;
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+int get_image_options(const boost::program_options::variables_map &vm,
+ bool get_format, librbd::ImageOptions *opts) {
+ uint64_t order = 0, stripe_unit = 0, stripe_count = 0, object_size = 0;
+ uint64_t features = 0, features_clear = 0, features_set = 0;
+ std::string data_pool;
+ bool order_specified = true;
+ bool features_specified = false;
+ bool features_clear_specified = false;
+ bool features_set_specified = false;
+ bool stripe_specified = false;
+
+ if (vm.count(at::IMAGE_ORDER)) {
+ order = vm[at::IMAGE_ORDER].as<uint64_t>();
+ std::cerr << "rbd: --order is deprecated, use --object-size"
+ << std::endl;
+ } else if (vm.count(at::IMAGE_OBJECT_SIZE)) {
+ object_size = vm[at::IMAGE_OBJECT_SIZE].as<uint64_t>();
+ order = std::round(std::log2(object_size));
+ } else {
+ order_specified = false;
+ }
+
+ if (vm.count(at::IMAGE_FEATURES)) {
+ features = vm[at::IMAGE_FEATURES].as<uint64_t>();
+ features_specified = true;
+ } else {
+ features = get_rbd_default_features(g_ceph_context);
+ }
+
+ if (vm.count(at::IMAGE_STRIPE_UNIT)) {
+ stripe_unit = vm[at::IMAGE_STRIPE_UNIT].as<uint64_t>();
+ stripe_specified = true;
+ }
+
+ if (vm.count(at::IMAGE_STRIPE_COUNT)) {
+ stripe_count = vm[at::IMAGE_STRIPE_COUNT].as<uint64_t>();
+ stripe_specified = true;
+ }
+
+ if (vm.count(at::IMAGE_SHARED) && vm[at::IMAGE_SHARED].as<bool>()) {
+ if (features_specified) {
+ features &= ~RBD_FEATURES_SINGLE_CLIENT;
+ } else {
+ features_clear |= RBD_FEATURES_SINGLE_CLIENT;
+ features_clear_specified = true;
+ }
+ }
+
+ if (vm.count(at::IMAGE_DATA_POOL)) {
+ data_pool = vm[at::IMAGE_DATA_POOL].as<std::string>();
+ }
+
+ if (get_format) {
+ uint64_t format = 0;
+ bool format_specified = false;
+ if (vm.count(at::IMAGE_NEW_FORMAT)) {
+ format = 2;
+ format_specified = true;
+ } else if (vm.count(at::IMAGE_FORMAT)) {
+ format = vm[at::IMAGE_FORMAT].as<uint32_t>();
+ format_specified = true;
+ }
+ if (format == 1) {
+ std::cerr << "rbd: image format 1 is deprecated" << std::endl;
+ }
+
+ if (features_specified && features != 0) {
+ if (format_specified && format == 1) {
+ std::cerr << "rbd: features not allowed with format 1; "
+ << "use --image-format 2" << std::endl;
+ return -EINVAL;
+ } else {
+ format = 2;
+ format_specified = true;
+ }
+ }
+
+ if ((stripe_unit || stripe_count) &&
+ (stripe_unit != (1ull << order) && stripe_count != 1)) {
+ if (format_specified && format == 1) {
+ std::cerr << "rbd: non-default striping not allowed with format 1; "
+ << "use --image-format 2" << std::endl;
+ return -EINVAL;
+ } else {
+ format = 2;
+ format_specified = true;
+ }
+ }
+
+ if (!data_pool.empty()) {
+ if (format_specified && format == 1) {
+ std::cerr << "rbd: data pool not allowed with format 1; "
+ << "use --image-format 2" << std::endl;
+ return -EINVAL;
+ } else {
+ format = 2;
+ format_specified = true;
+ }
+ }
+
+ if (format_specified) {
+ int r = g_conf->set_val("rbd_default_format", stringify(format));
+ assert(r == 0);
+ opts->set(RBD_IMAGE_OPTION_FORMAT, format);
+ }
+ }
+
+ if (order_specified)
+ opts->set(RBD_IMAGE_OPTION_ORDER, order);
+ if (features_specified)
+ opts->set(RBD_IMAGE_OPTION_FEATURES, features);
+ if (features_clear_specified) {
+ opts->set(RBD_IMAGE_OPTION_FEATURES_CLEAR, features_clear);
+ }
+ if (features_set_specified)
+ opts->set(RBD_IMAGE_OPTION_FEATURES_SET, features_set);
+ if (stripe_specified) {
+ opts->set(RBD_IMAGE_OPTION_STRIPE_UNIT, stripe_unit);
+ opts->set(RBD_IMAGE_OPTION_STRIPE_COUNT, stripe_count);
+ }
+ if (!data_pool.empty()) {
+ opts->set(RBD_IMAGE_OPTION_DATA_POOL, data_pool);
+ }
+ int r = get_journal_options(vm, opts);
+ if (r < 0) {
+ return r;
+ }
+
+ return 0;
+}
+
+int get_journal_options(const boost::program_options::variables_map &vm,
+ librbd::ImageOptions *opts) {
+
+ if (vm.count(at::JOURNAL_OBJECT_SIZE)) {
+ uint64_t size = vm[at::JOURNAL_OBJECT_SIZE].as<uint64_t>();
+ uint64_t order = 12;
+ while ((1ULL << order) < size) {
+ order++;
+ }
+ opts->set(RBD_IMAGE_OPTION_JOURNAL_ORDER, order);
+
+ int r = g_conf->set_val("rbd_journal_order", stringify(order));
+ assert(r == 0);
+ }
+ if (vm.count(at::JOURNAL_SPLAY_WIDTH)) {
+ opts->set(RBD_IMAGE_OPTION_JOURNAL_SPLAY_WIDTH,
+ vm[at::JOURNAL_SPLAY_WIDTH].as<uint64_t>());
+
+ int r = g_conf->set_val("rbd_journal_splay_width",
+ stringify(
+ vm[at::JOURNAL_SPLAY_WIDTH].as<uint64_t>()));
+ assert(r == 0);
+ }
+ if (vm.count(at::JOURNAL_POOL)) {
+ opts->set(RBD_IMAGE_OPTION_JOURNAL_POOL,
+ vm[at::JOURNAL_POOL].as<std::string>());
+
+ int r = g_conf->set_val("rbd_journal_pool",
+ vm[at::JOURNAL_POOL].as<std::string>());
+ assert(r == 0);
+ }
+
+ return 0;
+}
+
+int get_image_size(const boost::program_options::variables_map &vm,
+ uint64_t *size) {
+ if (vm.count(at::IMAGE_SIZE) == 0) {
+ std::cerr << "rbd: must specify --size <M/G/T>" << std::endl;
+ return -EINVAL;
+ }
+
+ *size = vm[at::IMAGE_SIZE].as<uint64_t>();
+ return 0;
+}
+
+int get_path(const boost::program_options::variables_map &vm,
+ const std::string &positional_path, std::string *path) {
+ if (!positional_path.empty()) {
+ *path = positional_path;
+ } else if (vm.count(at::PATH)) {
+ *path = vm[at::PATH].as<std::string>();
+ }
+
+ if (path->empty()) {
+ std::cerr << "rbd: path was not specified" << std::endl;
+ return -EINVAL;
+ }
+ return 0;
+}
+
+int get_formatter(const po::variables_map &vm,
+ at::Format::Formatter *formatter) {
+ if (vm.count(at::FORMAT)) {
+ bool pretty = vm[at::PRETTY_FORMAT].as<bool>();
+ *formatter = vm[at::FORMAT].as<at::Format>().create_formatter(pretty);
+ if (*formatter == nullptr && pretty) {
+ std::cerr << "rbd: --pretty-format only works when --format "
+ << "is json or xml" << std::endl;
+ return -EINVAL;
+ } else if (*formatter != nullptr && !pretty) {
+ formatter->get()->enable_line_break();
+ }
+ } else if (vm[at::PRETTY_FORMAT].as<bool>()) {
+ std::cerr << "rbd: --pretty-format only works when --format "
+ << "is json or xml" << std::endl;
+ return -EINVAL;
+ }
+ return 0;
+}
+
+void init_context() {
+ g_conf->set_val_or_die("rbd_cache_writethrough_until_flush", "false");
+ g_conf->apply_changes(NULL);
+ common_init_finish(g_ceph_context);
+}
+
+int init(const std::string &pool_name, librados::Rados *rados,
+ librados::IoCtx *io_ctx) {
+ init_context();
+
+ int r = rados->init_with_context(g_ceph_context);
+ if (r < 0) {
+ std::cerr << "rbd: couldn't initialize rados!" << std::endl;
+ return r;
+ }
+
+ r = rados->connect();
+ if (r < 0) {
+ std::cerr << "rbd: couldn't connect to the cluster!" << std::endl;
+ return r;
+ }
+
+ r = init_io_ctx(*rados, pool_name, io_ctx);
+ if (r < 0) {
+ return r;
+ }
+ return 0;
+}
+
+int init_io_ctx(librados::Rados &rados, const std::string &pool_name,
+ librados::IoCtx *io_ctx) {
+ int r = rados.ioctx_create(pool_name.c_str(), *io_ctx);
+ if (r < 0) {
+ if (r == -ENOENT && pool_name == get_default_pool_name()) {
+ std::cerr << "rbd: error opening default pool "
+ << "'" << pool_name << "'" << std::endl
+ << "Ensure that the default pool has been created or specify "
+ << "an alternate pool name." << std::endl;
+ } else {
+ std::cerr << "rbd: error opening pool '" << pool_name << "': "
+ << cpp_strerror(r) << std::endl;
+ }
+ return r;
+ }
+ return 0;
+}
+
+int open_image(librados::IoCtx &io_ctx, const std::string &image_name,
+ bool read_only, librbd::Image *image) {
+ int r;
+ librbd::RBD rbd;
+ if (read_only) {
+ r = rbd.open_read_only(io_ctx, *image, image_name.c_str(), NULL);
+ } else {
+ r = rbd.open(io_ctx, *image, image_name.c_str());
+ }
+
+ if (r < 0) {
+ std::cerr << "rbd: error opening image " << image_name << ": "
+ << cpp_strerror(r) << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+int open_image_by_id(librados::IoCtx &io_ctx, const std::string &image_id,
+ bool read_only, librbd::Image *image) {
+ int r;
+ librbd::RBD rbd;
+ if (read_only) {
+ r = rbd.open_by_id_read_only(io_ctx, *image, image_id.c_str(), NULL);
+ } else {
+ r = rbd.open_by_id(io_ctx, *image, image_id.c_str());
+ }
+
+ if (r < 0) {
+ std::cerr << "rbd: error opening image with id " << image_id << ": "
+ << cpp_strerror(r) << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+int init_and_open_image(const std::string &pool_name,
+ const std::string &image_name,
+ const std::string &image_id,
+ const std::string &snap_name, bool read_only,
+ librados::Rados *rados, librados::IoCtx *io_ctx,
+ librbd::Image *image) {
+ int r = init(pool_name, rados, io_ctx);
+ if (r < 0) {
+ return r;
+ }
+
+ if (image_id.empty()) {
+ r = open_image(*io_ctx, image_name, read_only, image);
+ } else {
+ r = open_image_by_id(*io_ctx, image_id, read_only, image);
+ }
+ if (r < 0) {
+ return r;
+ }
+
+ if (!snap_name.empty()) {
+ r = snap_set(*image, snap_name);
+ if (r < 0) {
+ return r;
+ }
+ }
+ return 0;
+}
+
+int snap_set(librbd::Image &image, const std::string &snap_name) {
+ int r = image.snap_set(snap_name.c_str());
+ if (r < 0) {
+ std::cerr << "error setting snapshot context: " << cpp_strerror(r)
+ << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+void calc_sparse_extent(const bufferptr &bp,
+ size_t sparse_size,
+ size_t buffer_offset,
+ uint64_t buffer_length,
+ size_t *write_length,
+ bool *zeroed) {
+ if (sparse_size == 0) {
+ // sparse writes are disabled -- write the full extent
+ assert(buffer_offset == 0);
+ *write_length = buffer_length;
+ *zeroed = false;
+ return;
+ }
+
+ *write_length = 0;
+ size_t original_offset = buffer_offset;
+ while (buffer_offset < buffer_length) {
+ size_t extent_size = std::min<size_t>(
+ sparse_size, buffer_length - buffer_offset);
+
+ bufferptr extent(bp, buffer_offset, extent_size);
+
+ bool extent_is_zero = extent.is_zero();
+ if (original_offset == buffer_offset) {
+ *zeroed = extent_is_zero;
+ } else if (*zeroed != extent_is_zero) {
+ assert(*write_length > 0);
+ return;
+ }
+
+ buffer_offset += extent_size;
+ *write_length += extent_size;
+ }
+}
+
+std::string image_id(librbd::Image& image) {
+ std::string id;
+ int r = image.get_id(&id);
+ if (r < 0) {
+ return std::string();
+ }
+ return id;
+}
+
+std::string mirror_image_state(librbd::mirror_image_state_t state) {
+ switch (state) {
+ case RBD_MIRROR_IMAGE_DISABLING:
+ return "disabling";
+ case RBD_MIRROR_IMAGE_ENABLED:
+ return "enabled";
+ case RBD_MIRROR_IMAGE_DISABLED:
+ return "disabled";
+ default:
+ return "unknown";
+ }
+}
+
+std::string mirror_image_status_state(librbd::mirror_image_status_state_t state) {
+ switch (state) {
+ case MIRROR_IMAGE_STATUS_STATE_UNKNOWN:
+ return "unknown";
+ case MIRROR_IMAGE_STATUS_STATE_ERROR:
+ return "error";
+ case MIRROR_IMAGE_STATUS_STATE_SYNCING:
+ return "syncing";
+ case MIRROR_IMAGE_STATUS_STATE_STARTING_REPLAY:
+ return "starting_replay";
+ case MIRROR_IMAGE_STATUS_STATE_REPLAYING:
+ return "replaying";
+ case MIRROR_IMAGE_STATUS_STATE_STOPPING_REPLAY:
+ return "stopping_replay";
+ case MIRROR_IMAGE_STATUS_STATE_STOPPED:
+ return "stopped";
+ default:
+ return "unknown (" + stringify(static_cast<uint32_t>(state)) + ")";
+ }
+}
+
+std::string mirror_image_status_state(librbd::mirror_image_status_t status) {
+ return (status.up ? "up+" : "down+") +
+ mirror_image_status_state(status.state);
+}
+
+std::string timestr(time_t t) {
+ struct tm tm;
+
+ localtime_r(&t, &tm);
+
+ char buf[32];
+ strftime(buf, sizeof(buf), "%F %T", &tm);
+
+ return buf;
+}
+
+uint64_t get_rbd_default_features(CephContext* cct) {
+ auto features = cct->_conf->get_val<std::string>("rbd_default_features");
+ return boost::lexical_cast<uint64_t>(features);
+}
+
+bool check_if_image_spec_present(const po::variables_map &vm,
+ at::ArgumentModifier mod,
+ size_t spec_arg_index) {
+ std::string image_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
+ at::DEST_IMAGE_NAME : at::IMAGE_NAME);
+
+ if (vm.count(image_key)) {
+ return true;
+ }
+
+ std::string spec = get_positional_argument(vm, spec_arg_index);
+ if (!spec.empty()) {
+ return true;
+ }
+
+ return false;
+}
+
+} // namespace utils
+} // namespace rbd
Code Review / stor4nfv.git / blobdiff