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/Utils.h"
5 #include "include/assert.h"
6 #include "include/Context.h"
7 #include "include/encoding.h"
8 #include "common/common_init.h"
9 #include "include/stringify.h"
10 #include "include/rbd/features.h"
11 #include "common/config.h"
12 #include "common/errno.h"
13 #include "common/safe_io.h"
14 #include "global/global_context.h"
16 #include <boost/regex.hpp>
17 #include <boost/algorithm/string.hpp>
18 #include <boost/lexical_cast.hpp>
23 namespace at = argument_types;
24 namespace po = boost::program_options;
26 int ProgressContext::update_progress(uint64_t offset, uint64_t total) {
28 int pc = total ? (offset * 100ull / total) : 0;
30 cerr << "\r" << operation << ": "
31 << pc << "% complete...";
39 void ProgressContext::finish() {
41 cerr << "\r" << operation << ": 100% complete...done." << std::endl;
45 void ProgressContext::fail() {
47 cerr << "\r" << operation << ": " << last_pc << "% complete...failed."
52 void aio_context_callback(librbd::completion_t completion, void *arg)
54 librbd::RBD::AioCompletion *aio_completion =
55 reinterpret_cast<librbd::RBD::AioCompletion*>(completion);
56 Context *context = reinterpret_cast<Context *>(arg);
57 context->complete(aio_completion->get_return_value());
58 aio_completion->release();
61 int read_string(int fd, unsigned max, std::string *out) {
64 int r = safe_read_exact(fd, buf, 4);
70 bufferlist::iterator p = bl.begin();
77 r = safe_read_exact(fd, sbuf, len);
80 out->assign(sbuf, len);
84 int extract_spec(const std::string &spec, std::string *pool_name,
85 std::string *image_name, std::string *snap_name,
86 SpecValidation spec_validation) {
87 if (!g_ceph_context->_conf->get_val<bool>("rbd_validate_names")) {
88 spec_validation = SPEC_VALIDATION_NONE;
92 switch (spec_validation) {
93 case SPEC_VALIDATION_FULL:
94 // disallow "/" and "@" in image and snap name
95 pattern = "^(?:([^/@]+)/)?([^/@]+)(?:@([^/@]+))?$";
97 case SPEC_VALIDATION_SNAP:
98 // disallow "/" and "@" in snap name
99 pattern = "^(?:([^/]+)/)?([^@]+)(?:@([^/@]+))?$";
101 case SPEC_VALIDATION_NONE:
102 // relaxed pattern assumes pool is before first "/" and snap
103 // name is after first "@"
104 pattern = "^(?:([^/]+)/)?([^@]+)(?:@(.+))?$";
112 if (!boost::regex_match(spec, match, pattern)) {
113 std::cerr << "rbd: invalid spec '" << spec << "'" << std::endl;
117 if (pool_name != nullptr && match[1].matched) {
118 *pool_name = match[1];
120 if (image_name != nullptr) {
121 *image_name = match[2];
123 if (snap_name != nullptr && match[3].matched) {
124 *snap_name = match[3];
129 int extract_group_spec(const std::string &spec,
130 std::string *pool_name,
131 std::string *group_name) {
132 boost::regex pattern;
133 pattern = "^(?:([^/]+)/)?(.+)?$";
136 if (!boost::regex_match(spec, match, pattern)) {
137 std::cerr << "rbd: invalid spec '" << spec << "'" << std::endl;
141 if (pool_name != nullptr && match[1].matched) {
142 *pool_name = match[1];
144 if (group_name != nullptr) {
145 *group_name = match[2];
151 int extract_image_id_spec(const std::string &spec, std::string *pool_name,
152 std::string *image_id) {
153 boost::regex pattern;
154 pattern = "^(?:([^/]+)/)?(.+)?$";
157 if (!boost::regex_match(spec, match, pattern)) {
158 std::cerr << "rbd: invalid spec '" << spec << "'" << std::endl;
162 if (pool_name != nullptr && match[1].matched) {
163 *pool_name = match[1];
165 if (image_id != nullptr) {
166 *image_id = match[2];
172 std::string get_positional_argument(const po::variables_map &vm, size_t index) {
173 if (vm.count(at::POSITIONAL_ARGUMENTS) == 0) {
177 const std::vector<std::string> &args =
178 boost::any_cast<std::vector<std::string> >(
179 vm[at::POSITIONAL_ARGUMENTS].value());
180 if (index < args.size()) {
186 std::string get_default_pool_name() {
187 return g_ceph_context->_conf->get_val<std::string>("rbd_default_pool");
190 std::string get_pool_name(const po::variables_map &vm, size_t *arg_index) {
191 std::string pool_name;
192 if (vm.count(at::POOL_NAME)) {
193 pool_name = vm[at::POOL_NAME].as<std::string>();
195 pool_name = get_positional_argument(vm, *arg_index);
196 if (!pool_name.empty()) {
201 if (pool_name.empty()) {
202 pool_name = get_default_pool_name();
207 int get_special_pool_group_names(const po::variables_map &vm,
209 std::string *group_pool_name,
210 std::string *group_name) {
211 if (nullptr == group_pool_name) return -EINVAL;
212 if (nullptr == group_name) return -EINVAL;
213 std::string pool_key = at::POOL_NAME;
215 std::string group_pool_key = "group-" + at::POOL_NAME;
216 std::string group_key = at::GROUP_NAME;
218 if (vm.count(group_pool_key)) {
219 *group_pool_name = vm[group_pool_key].as<std::string>();
222 if (vm.count(group_key)) {
223 *group_name = vm[group_key].as<std::string>();
227 if (group_name->empty()) {
228 std::string spec = utils::get_positional_argument(vm, (*arg_index)++);
230 r = utils::extract_group_spec(spec, group_pool_name, group_name);
237 if (group_pool_name->empty() && vm.count(pool_key)) {
238 *group_pool_name = vm[pool_key].as<std::string>();
241 if (group_pool_name->empty()) {
242 *group_pool_name = get_default_pool_name();
245 if (group_name->empty()) {
246 std::cerr << "rbd: consistency group name was not specified" << std::endl;
253 int get_special_pool_image_names(const po::variables_map &vm,
255 std::string *image_pool_name,
256 std::string *image_name) {
257 if (nullptr == image_pool_name) return -EINVAL;
258 if (nullptr == image_name) return -EINVAL;
260 std::string pool_key = at::POOL_NAME;
262 std::string image_pool_key = "image-" + at::POOL_NAME;
263 std::string image_key = at::IMAGE_NAME;
265 if (vm.count(image_pool_key)) {
266 *image_pool_name = vm[image_pool_key].as<std::string>();
269 if (vm.count(image_key)) {
270 *image_name = vm[image_key].as<std::string>();
274 if (image_name->empty()) {
275 std::string spec = utils::get_positional_argument(vm, (*arg_index)++);
277 r = utils::extract_spec(spec, image_pool_name,
279 utils::SPEC_VALIDATION_NONE);
286 if (image_pool_name->empty() && vm.count(pool_key)) {
287 *image_pool_name = vm[pool_key].as<std::string>();
290 if (image_pool_name->empty()) {
291 *image_pool_name = get_default_pool_name();
294 if (image_name->empty()) {
295 std::cerr << "rbd: image name was not specified" << std::endl;
302 int get_pool_image_id(const po::variables_map &vm,
303 size_t *spec_arg_index,
304 std::string *pool_name,
305 std::string *image_id) {
307 if (vm.count(at::POOL_NAME) && pool_name != nullptr) {
308 *pool_name = vm[at::POOL_NAME].as<std::string>();
310 if (vm.count(at::IMAGE_ID) && image_id != nullptr) {
311 *image_id = vm[at::IMAGE_ID].as<std::string>();
315 if (image_id != nullptr && spec_arg_index != nullptr && image_id->empty()) {
316 std::string spec = get_positional_argument(vm, (*spec_arg_index)++);
318 r = extract_image_id_spec(spec, pool_name, image_id);
325 if (pool_name != nullptr && pool_name->empty()) {
326 *pool_name = get_default_pool_name();
329 if (image_id != nullptr && image_id->empty()) {
330 std::cerr << "rbd: image id was not specified" << std::endl;
337 int get_pool_group_names(const po::variables_map &vm,
338 at::ArgumentModifier mod,
339 size_t *spec_arg_index,
340 std::string *pool_name,
341 std::string *group_name) {
342 std::string pool_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
343 at::DEST_POOL_NAME : at::POOL_NAME);
344 std::string group_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
345 at::DEST_GROUP_NAME : at::GROUP_NAME);
347 if (vm.count(pool_key) && pool_name != nullptr) {
348 *pool_name = vm[pool_key].as<std::string>();
350 if (vm.count(group_key) && group_name != nullptr) {
351 *group_name = vm[group_key].as<std::string>();
355 if (group_name != nullptr && spec_arg_index != nullptr &&
356 group_name->empty()) {
357 std::string spec = get_positional_argument(vm, (*spec_arg_index)++);
359 r = extract_group_spec(spec, pool_name, group_name);
366 if (pool_name != nullptr && pool_name->empty()) {
367 *pool_name = get_default_pool_name();
370 if (group_name != nullptr && group_name->empty()) {
371 std::string prefix = at::get_description_prefix(mod);
373 << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
374 << "group name was not specified" << std::endl;
381 int get_pool_image_snapshot_names(const po::variables_map &vm,
382 at::ArgumentModifier mod,
383 size_t *spec_arg_index,
384 std::string *pool_name,
385 std::string *image_name,
386 std::string *snap_name,
387 SnapshotPresence snapshot_presence,
388 SpecValidation spec_validation,
389 bool image_required) {
390 std::string pool_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
391 at::DEST_POOL_NAME : at::POOL_NAME);
392 std::string image_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
393 at::DEST_IMAGE_NAME : at::IMAGE_NAME);
394 std::string snap_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
395 at::DEST_SNAPSHOT_NAME : at::SNAPSHOT_NAME);
397 if (vm.count(pool_key) && pool_name != nullptr) {
398 *pool_name = vm[pool_key].as<std::string>();
400 if (vm.count(image_key) && image_name != nullptr) {
401 *image_name = vm[image_key].as<std::string>();
403 if (vm.count(snap_key) && snap_name != nullptr) {
404 *snap_name = vm[snap_key].as<std::string>();
408 if (image_name != nullptr && !image_name->empty()) {
409 // despite the separate pool and snapshot name options,
410 // we can also specify them via the image option
411 std::string image_name_copy(*image_name);
412 r = extract_spec(image_name_copy, pool_name, image_name, snap_name,
419 if (image_name != nullptr && spec_arg_index != nullptr &&
420 image_name->empty()) {
421 std::string spec = get_positional_argument(vm, (*spec_arg_index)++);
423 r = extract_spec(spec, pool_name, image_name, snap_name, spec_validation);
430 if (pool_name != nullptr && pool_name->empty()) {
431 *pool_name = get_default_pool_name();
434 if (image_name != nullptr && image_required && image_name->empty()) {
435 std::string prefix = at::get_description_prefix(mod);
437 << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
438 << "image name was not specified" << std::endl;
442 //Validate pool name while creating/renaming/copying/cloning/importing/etc
443 if (spec_validation == SPEC_VALIDATION_FULL) {
444 boost::regex pattern("^[^@/]+?$");
445 if (!boost::regex_match (*pool_name, pattern)) {
446 std::cerr << "rbd: invalid pool name '" << *pool_name << "'" << std::endl;
451 if (snap_name != nullptr) {
452 r = validate_snapshot_name(mod, *snap_name, snapshot_presence,
461 int get_pool_snapshot_names(const po::variables_map &vm,
462 at::ArgumentModifier mod,
463 size_t *spec_arg_index,
464 std::string *pool_name,
465 std::string *snap_name,
466 SnapshotPresence snapshot_presence,
467 SpecValidation spec_validation) {
468 std::string pool_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
469 at::DEST_POOL_NAME : at::POOL_NAME);
470 std::string snap_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
471 at::DEST_SNAPSHOT_NAME : at::SNAPSHOT_NAME);
473 if (vm.count(pool_key) && pool_name != nullptr) {
474 *pool_name = vm[pool_key].as<std::string>();
476 if (vm.count(snap_key) && snap_name != nullptr) {
477 *snap_name = vm[snap_key].as<std::string>();
480 if (pool_name != nullptr && pool_name->empty()) {
481 *pool_name = get_default_pool_name();
484 if (snap_name != nullptr) {
485 int r = validate_snapshot_name(mod, *snap_name, snapshot_presence,
494 int get_pool_journal_names(const po::variables_map &vm,
495 at::ArgumentModifier mod,
496 size_t *spec_arg_index,
497 std::string *pool_name,
498 std::string *journal_name) {
499 std::string pool_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
500 at::DEST_POOL_NAME : at::POOL_NAME);
501 std::string image_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
502 at::DEST_IMAGE_NAME : at::IMAGE_NAME);
503 std::string journal_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
504 at::DEST_JOURNAL_NAME : at::JOURNAL_NAME);
506 if (vm.count(pool_key) && pool_name != nullptr) {
507 *pool_name = vm[pool_key].as<std::string>();
509 if (vm.count(journal_key) && journal_name != nullptr) {
510 *journal_name = vm[journal_key].as<std::string>();
513 std::string image_name;
514 if (vm.count(image_key)) {
515 image_name = vm[image_key].as<std::string>();
519 if (journal_name != nullptr && !journal_name->empty()) {
520 // despite the separate pool option,
521 // we can also specify them via the journal option
522 std::string journal_name_copy(*journal_name);
523 r = extract_spec(journal_name_copy, pool_name, journal_name, nullptr,
524 SPEC_VALIDATION_FULL);
530 if (!image_name.empty()) {
531 // despite the separate pool option,
532 // we can also specify them via the image option
533 std::string image_name_copy(image_name);
534 r = extract_spec(image_name_copy, pool_name, &image_name, nullptr,
535 SPEC_VALIDATION_NONE);
541 if (journal_name != nullptr && spec_arg_index != nullptr &&
542 journal_name->empty()) {
543 std::string spec = get_positional_argument(vm, (*spec_arg_index)++);
545 r = extract_spec(spec, pool_name, journal_name, nullptr,
546 SPEC_VALIDATION_FULL);
553 if (pool_name != nullptr && pool_name->empty()) {
554 *pool_name = get_default_pool_name();
557 if (pool_name != nullptr && journal_name != nullptr &&
558 journal_name->empty() && !image_name.empty()) {
559 // Try to get journal name from image info.
560 librados::Rados rados;
561 librados::IoCtx io_ctx;
563 int r = init_and_open_image(*pool_name, image_name, "", "", true, &rados,
566 std::cerr << "rbd: failed to open image " << image_name
567 << " to get journal name: " << cpp_strerror(r) << std::endl;
572 r = image.features(&features);
576 if ((features & RBD_FEATURE_JOURNALING) == 0) {
577 std::cerr << "rbd: journaling is not enabled for image " << image_name
581 *journal_name = image_id(image);
584 if (journal_name != nullptr && journal_name->empty()) {
585 std::string prefix = at::get_description_prefix(mod);
587 << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
588 << "journal was not specified" << std::endl;
595 int validate_snapshot_name(at::ArgumentModifier mod,
596 const std::string &snap_name,
597 SnapshotPresence snapshot_presence,
598 SpecValidation spec_validation) {
599 std::string prefix = at::get_description_prefix(mod);
600 switch (snapshot_presence) {
601 case SNAPSHOT_PRESENCE_PERMITTED:
603 case SNAPSHOT_PRESENCE_NONE:
604 if (!snap_name.empty()) {
606 << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
607 << "snapname specified for a command that doesn't use it"
612 case SNAPSHOT_PRESENCE_REQUIRED:
613 if (snap_name.empty()) {
615 << (mod == at::ARGUMENT_MODIFIER_DEST ? prefix : std::string())
616 << "snap name was not specified" << std::endl;
622 if (spec_validation == SPEC_VALIDATION_SNAP) {
623 // disallow "/" and "@" in snap name
624 boost::regex pattern("^[^@/]*?$");
625 if (!boost::regex_match (snap_name, pattern)) {
626 std::cerr << "rbd: invalid snap name '" << snap_name << "'" << std::endl;
633 int get_image_options(const boost::program_options::variables_map &vm,
634 bool get_format, librbd::ImageOptions *opts) {
635 uint64_t order = 0, stripe_unit = 0, stripe_count = 0, object_size = 0;
636 uint64_t features = 0, features_clear = 0, features_set = 0;
637 std::string data_pool;
638 bool order_specified = true;
639 bool features_specified = false;
640 bool features_clear_specified = false;
641 bool features_set_specified = false;
642 bool stripe_specified = false;
644 if (vm.count(at::IMAGE_ORDER)) {
645 order = vm[at::IMAGE_ORDER].as<uint64_t>();
646 std::cerr << "rbd: --order is deprecated, use --object-size"
648 } else if (vm.count(at::IMAGE_OBJECT_SIZE)) {
649 object_size = vm[at::IMAGE_OBJECT_SIZE].as<uint64_t>();
650 order = std::round(std::log2(object_size));
652 order_specified = false;
655 if (vm.count(at::IMAGE_FEATURES)) {
656 features = vm[at::IMAGE_FEATURES].as<uint64_t>();
657 features_specified = true;
659 features = get_rbd_default_features(g_ceph_context);
662 if (vm.count(at::IMAGE_STRIPE_UNIT)) {
663 stripe_unit = vm[at::IMAGE_STRIPE_UNIT].as<uint64_t>();
664 stripe_specified = true;
667 if (vm.count(at::IMAGE_STRIPE_COUNT)) {
668 stripe_count = vm[at::IMAGE_STRIPE_COUNT].as<uint64_t>();
669 stripe_specified = true;
672 if (vm.count(at::IMAGE_SHARED) && vm[at::IMAGE_SHARED].as<bool>()) {
673 if (features_specified) {
674 features &= ~RBD_FEATURES_SINGLE_CLIENT;
676 features_clear |= RBD_FEATURES_SINGLE_CLIENT;
677 features_clear_specified = true;
681 if (vm.count(at::IMAGE_DATA_POOL)) {
682 data_pool = vm[at::IMAGE_DATA_POOL].as<std::string>();
687 bool format_specified = false;
688 if (vm.count(at::IMAGE_NEW_FORMAT)) {
690 format_specified = true;
691 } else if (vm.count(at::IMAGE_FORMAT)) {
692 format = vm[at::IMAGE_FORMAT].as<uint32_t>();
693 format_specified = true;
696 std::cerr << "rbd: image format 1 is deprecated" << std::endl;
699 if (features_specified && features != 0) {
700 if (format_specified && format == 1) {
701 std::cerr << "rbd: features not allowed with format 1; "
702 << "use --image-format 2" << std::endl;
706 format_specified = true;
710 if ((stripe_unit || stripe_count) &&
711 (stripe_unit != (1ull << order) && stripe_count != 1)) {
712 if (format_specified && format == 1) {
713 std::cerr << "rbd: non-default striping not allowed with format 1; "
714 << "use --image-format 2" << std::endl;
718 format_specified = true;
722 if (!data_pool.empty()) {
723 if (format_specified && format == 1) {
724 std::cerr << "rbd: data pool not allowed with format 1; "
725 << "use --image-format 2" << std::endl;
729 format_specified = true;
733 if (format_specified) {
734 int r = g_conf->set_val("rbd_default_format", stringify(format));
736 opts->set(RBD_IMAGE_OPTION_FORMAT, format);
741 opts->set(RBD_IMAGE_OPTION_ORDER, order);
742 if (features_specified)
743 opts->set(RBD_IMAGE_OPTION_FEATURES, features);
744 if (features_clear_specified) {
745 opts->set(RBD_IMAGE_OPTION_FEATURES_CLEAR, features_clear);
747 if (features_set_specified)
748 opts->set(RBD_IMAGE_OPTION_FEATURES_SET, features_set);
749 if (stripe_specified) {
750 opts->set(RBD_IMAGE_OPTION_STRIPE_UNIT, stripe_unit);
751 opts->set(RBD_IMAGE_OPTION_STRIPE_COUNT, stripe_count);
753 if (!data_pool.empty()) {
754 opts->set(RBD_IMAGE_OPTION_DATA_POOL, data_pool);
756 int r = get_journal_options(vm, opts);
764 int get_journal_options(const boost::program_options::variables_map &vm,
765 librbd::ImageOptions *opts) {
767 if (vm.count(at::JOURNAL_OBJECT_SIZE)) {
768 uint64_t size = vm[at::JOURNAL_OBJECT_SIZE].as<uint64_t>();
770 while ((1ULL << order) < size) {
773 opts->set(RBD_IMAGE_OPTION_JOURNAL_ORDER, order);
775 int r = g_conf->set_val("rbd_journal_order", stringify(order));
778 if (vm.count(at::JOURNAL_SPLAY_WIDTH)) {
779 opts->set(RBD_IMAGE_OPTION_JOURNAL_SPLAY_WIDTH,
780 vm[at::JOURNAL_SPLAY_WIDTH].as<uint64_t>());
782 int r = g_conf->set_val("rbd_journal_splay_width",
784 vm[at::JOURNAL_SPLAY_WIDTH].as<uint64_t>()));
787 if (vm.count(at::JOURNAL_POOL)) {
788 opts->set(RBD_IMAGE_OPTION_JOURNAL_POOL,
789 vm[at::JOURNAL_POOL].as<std::string>());
791 int r = g_conf->set_val("rbd_journal_pool",
792 vm[at::JOURNAL_POOL].as<std::string>());
799 int get_image_size(const boost::program_options::variables_map &vm,
801 if (vm.count(at::IMAGE_SIZE) == 0) {
802 std::cerr << "rbd: must specify --size <M/G/T>" << std::endl;
806 *size = vm[at::IMAGE_SIZE].as<uint64_t>();
810 int get_path(const boost::program_options::variables_map &vm,
811 const std::string &positional_path, std::string *path) {
812 if (!positional_path.empty()) {
813 *path = positional_path;
814 } else if (vm.count(at::PATH)) {
815 *path = vm[at::PATH].as<std::string>();
819 std::cerr << "rbd: path was not specified" << std::endl;
825 int get_formatter(const po::variables_map &vm,
826 at::Format::Formatter *formatter) {
827 if (vm.count(at::FORMAT)) {
828 bool pretty = vm[at::PRETTY_FORMAT].as<bool>();
829 *formatter = vm[at::FORMAT].as<at::Format>().create_formatter(pretty);
830 if (*formatter == nullptr && pretty) {
831 std::cerr << "rbd: --pretty-format only works when --format "
832 << "is json or xml" << std::endl;
834 } else if (*formatter != nullptr && !pretty) {
835 formatter->get()->enable_line_break();
837 } else if (vm[at::PRETTY_FORMAT].as<bool>()) {
838 std::cerr << "rbd: --pretty-format only works when --format "
839 << "is json or xml" << std::endl;
845 void init_context() {
846 g_conf->set_val_or_die("rbd_cache_writethrough_until_flush", "false");
847 g_conf->apply_changes(NULL);
848 common_init_finish(g_ceph_context);
851 int init(const std::string &pool_name, librados::Rados *rados,
852 librados::IoCtx *io_ctx) {
855 int r = rados->init_with_context(g_ceph_context);
857 std::cerr << "rbd: couldn't initialize rados!" << std::endl;
861 r = rados->connect();
863 std::cerr << "rbd: couldn't connect to the cluster!" << std::endl;
867 r = init_io_ctx(*rados, pool_name, io_ctx);
874 int init_io_ctx(librados::Rados &rados, const std::string &pool_name,
875 librados::IoCtx *io_ctx) {
876 int r = rados.ioctx_create(pool_name.c_str(), *io_ctx);
878 if (r == -ENOENT && pool_name == get_default_pool_name()) {
879 std::cerr << "rbd: error opening default pool "
880 << "'" << pool_name << "'" << std::endl
881 << "Ensure that the default pool has been created or specify "
882 << "an alternate pool name." << std::endl;
884 std::cerr << "rbd: error opening pool '" << pool_name << "': "
885 << cpp_strerror(r) << std::endl;
892 int open_image(librados::IoCtx &io_ctx, const std::string &image_name,
893 bool read_only, librbd::Image *image) {
897 r = rbd.open_read_only(io_ctx, *image, image_name.c_str(), NULL);
899 r = rbd.open(io_ctx, *image, image_name.c_str());
903 std::cerr << "rbd: error opening image " << image_name << ": "
904 << cpp_strerror(r) << std::endl;
910 int open_image_by_id(librados::IoCtx &io_ctx, const std::string &image_id,
911 bool read_only, librbd::Image *image) {
915 r = rbd.open_by_id_read_only(io_ctx, *image, image_id.c_str(), NULL);
917 r = rbd.open_by_id(io_ctx, *image, image_id.c_str());
921 std::cerr << "rbd: error opening image with id " << image_id << ": "
922 << cpp_strerror(r) << std::endl;
928 int init_and_open_image(const std::string &pool_name,
929 const std::string &image_name,
930 const std::string &image_id,
931 const std::string &snap_name, bool read_only,
932 librados::Rados *rados, librados::IoCtx *io_ctx,
933 librbd::Image *image) {
934 int r = init(pool_name, rados, io_ctx);
939 if (image_id.empty()) {
940 r = open_image(*io_ctx, image_name, read_only, image);
942 r = open_image_by_id(*io_ctx, image_id, read_only, image);
948 if (!snap_name.empty()) {
949 r = snap_set(*image, snap_name);
957 int snap_set(librbd::Image &image, const std::string &snap_name) {
958 int r = image.snap_set(snap_name.c_str());
960 std::cerr << "error setting snapshot context: " << cpp_strerror(r)
967 void calc_sparse_extent(const bufferptr &bp,
969 size_t buffer_offset,
970 uint64_t buffer_length,
971 size_t *write_length,
973 if (sparse_size == 0) {
974 // sparse writes are disabled -- write the full extent
975 assert(buffer_offset == 0);
976 *write_length = buffer_length;
982 size_t original_offset = buffer_offset;
983 while (buffer_offset < buffer_length) {
984 size_t extent_size = std::min<size_t>(
985 sparse_size, buffer_length - buffer_offset);
987 bufferptr extent(bp, buffer_offset, extent_size);
989 bool extent_is_zero = extent.is_zero();
990 if (original_offset == buffer_offset) {
991 *zeroed = extent_is_zero;
992 } else if (*zeroed != extent_is_zero) {
993 assert(*write_length > 0);
997 buffer_offset += extent_size;
998 *write_length += extent_size;
1002 std::string image_id(librbd::Image& image) {
1004 int r = image.get_id(&id);
1006 return std::string();
1011 std::string mirror_image_state(librbd::mirror_image_state_t state) {
1013 case RBD_MIRROR_IMAGE_DISABLING:
1015 case RBD_MIRROR_IMAGE_ENABLED:
1017 case RBD_MIRROR_IMAGE_DISABLED:
1024 std::string mirror_image_status_state(librbd::mirror_image_status_state_t state) {
1026 case MIRROR_IMAGE_STATUS_STATE_UNKNOWN:
1028 case MIRROR_IMAGE_STATUS_STATE_ERROR:
1030 case MIRROR_IMAGE_STATUS_STATE_SYNCING:
1032 case MIRROR_IMAGE_STATUS_STATE_STARTING_REPLAY:
1033 return "starting_replay";
1034 case MIRROR_IMAGE_STATUS_STATE_REPLAYING:
1036 case MIRROR_IMAGE_STATUS_STATE_STOPPING_REPLAY:
1037 return "stopping_replay";
1038 case MIRROR_IMAGE_STATUS_STATE_STOPPED:
1041 return "unknown (" + stringify(static_cast<uint32_t>(state)) + ")";
1045 std::string mirror_image_status_state(librbd::mirror_image_status_t status) {
1046 return (status.up ? "up+" : "down+") +
1047 mirror_image_status_state(status.state);
1050 std::string timestr(time_t t) {
1053 localtime_r(&t, &tm);
1056 strftime(buf, sizeof(buf), "%F %T", &tm);
1061 uint64_t get_rbd_default_features(CephContext* cct) {
1062 auto features = cct->_conf->get_val<std::string>("rbd_default_features");
1063 return boost::lexical_cast<uint64_t>(features);
1066 bool check_if_image_spec_present(const po::variables_map &vm,
1067 at::ArgumentModifier mod,
1068 size_t spec_arg_index) {
1069 std::string image_key = (mod == at::ARGUMENT_MODIFIER_DEST ?
1070 at::DEST_IMAGE_NAME : at::IMAGE_NAME);
1072 if (vm.count(image_key)) {
1076 std::string spec = get_positional_argument(vm, spec_arg_index);
1077 if (!spec.empty()) {
1084 } // namespace utils