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 "include/types.h"
8 #include "include/stringify.h"
9 #include "common/errno.h"
10 #include "common/Formatter.h"
12 #include <boost/program_options.hpp>
18 namespace at = argument_types;
19 namespace po = boost::program_options;
21 static void format_bitmask(Formatter *f, const std::string &name,
22 const std::map<uint64_t, std::string>& mapping,
26 std::string group_name(name + "s");
28 std::cout << "\t" << group_name << ": ";
30 f->open_array_section(group_name.c_str());
32 for (std::map<uint64_t, std::string>::const_iterator it = mapping.begin();
33 it != mapping.end(); ++it) {
34 if ((it->first & bitmask) == 0) {
42 std::cout << it->second;
44 f->dump_string(name.c_str(), it->second);
48 std::cout << std::endl;
54 static void format_features(Formatter *f, uint64_t features)
56 format_bitmask(f, "feature", at::ImageFeatures::FEATURE_MAPPING, features);
59 static void format_flags(Formatter *f, uint64_t flags)
61 std::map<uint64_t, std::string> mapping = {
62 {RBD_FLAG_OBJECT_MAP_INVALID, "object map invalid"},
63 {RBD_FLAG_FAST_DIFF_INVALID, "fast diff invalid"}};
64 format_bitmask(f, "flag", mapping, flags);
67 static int do_show_info(librados::IoCtx &io_ctx, librbd::Image& image,
68 const std::string &imgname, const std::string &imgid,
69 const std::string &snapname, Formatter *f)
71 librbd::image_info_t info;
73 uint64_t overlap, features, flags, snap_limit;
74 bool snap_protected = false;
75 librbd::mirror_image_info_t mirror_image;
78 r = image.stat(info, sizeof(info));
82 r = image.old_format(&old_format);
86 std::string data_pool;
88 int64_t data_pool_id = image.get_data_pool_id();
89 if (data_pool_id != io_ctx.get_id()) {
90 librados::Rados rados(io_ctx);
91 librados::IoCtx data_io_ctx;
92 r = rados.ioctx_create2(data_pool_id, data_io_ctx);
94 data_pool = "<missing data pool " + stringify(data_pool_id) + ">";
96 data_pool = data_io_ctx.get_pool_name();
101 r = image.overlap(&overlap);
105 r = image.features(&features);
109 r = image.get_flags(&flags);
114 if (!snapname.empty()) {
115 r = image.snap_is_protected(snapname.c_str(), &snap_protected);
120 if (features & RBD_FEATURE_JOURNALING) {
121 r = image.mirror_image_get_info(&mirror_image, sizeof(mirror_image));
127 r = image.snap_get_limit(&snap_limit);
131 std::string prefix = image.get_block_name_prefix();
133 struct timespec create_timestamp;
134 image.get_create_timestamp(&create_timestamp);
136 string create_timestamp_str = "";
137 if(create_timestamp.tv_sec != 0) {
138 time_t timestamp = create_timestamp.tv_sec;
139 create_timestamp_str = ctime(×tamp);
140 create_timestamp_str = create_timestamp_str.substr(0,
141 create_timestamp_str.length() - 1);
145 f->open_object_section("image");
146 if (!imgname.empty()) {
147 f->dump_string("name", imgname);
149 f->dump_string("id", imgid);
151 f->dump_unsigned("size", info.size);
152 f->dump_unsigned("objects", info.num_objs);
153 f->dump_int("order", info.order);
154 f->dump_unsigned("object_size", info.obj_size);
155 if (!data_pool.empty()) {
156 f->dump_string("data_pool", data_pool);
158 f->dump_string("block_name_prefix", prefix);
159 f->dump_int("format", (old_format ? 1 : 2));
161 std::cout << "rbd image '" << (imgname.empty() ? imgid : imgname) << "':\n"
162 << "\tsize " << prettybyte_t(info.size) << " in "
163 << info.num_objs << " objects"
165 << "\torder " << info.order
166 << " (" << prettybyte_t(info.obj_size) << " objects)"
168 if (!data_pool.empty()) {
169 std::cout << "\tdata_pool: " << data_pool << std::endl;
171 std::cout << "\tblock_name_prefix: " << prefix
173 << "\tformat: " << (old_format ? "1" : "2")
178 format_features(f, features);
179 format_flags(f, flags);
182 if (!create_timestamp_str.empty()) {
184 f->dump_string("create_timestamp", create_timestamp_str);
186 std::cout << "\tcreate_timestamp: " << create_timestamp_str
191 // snapshot info, if present
192 if (!snapname.empty()) {
194 f->dump_string("protected", snap_protected ? "true" : "false");
196 std::cout << "\tprotected: " << (snap_protected ? "True" : "False")
201 if (snap_limit < UINT64_MAX) {
203 f->dump_unsigned("snapshot_limit", snap_limit);
205 std::cout << "\tsnapshot_limit: " << snap_limit << std::endl;
209 // parent info, if present
210 std::string parent_pool, parent_name, parent_id, parent_snapname;
211 if ((image.parent_info2(&parent_pool, &parent_name, &parent_id,
212 &parent_snapname) == 0) &&
213 parent_name.length() > 0) {
215 librbd::trash_image_info_t trash_image_info;
217 r = rbd.trash_get(io_ctx, parent_id.c_str(), &trash_image_info);
218 bool trash_image_info_valid = (r == 0);
221 f->open_object_section("parent");
222 f->dump_string("pool", parent_pool);
223 f->dump_string("image", parent_name);
224 f->dump_string("snapshot", parent_snapname);
225 if (trash_image_info_valid) {
226 f->dump_string("trash", parent_id);
228 f->dump_unsigned("overlap", overlap);
231 std::cout << "\tparent: " << parent_pool << "/" << parent_name
232 << "@" << parent_snapname;
233 if (trash_image_info_valid) {
234 std::cout << " (trash " << parent_id << ")";
236 std::cout << std::endl;
237 std::cout << "\toverlap: " << prettybyte_t(overlap) << std::endl;
241 // striping info, if feature is set
242 if (features & RBD_FEATURE_STRIPINGV2) {
244 f->dump_unsigned("stripe_unit", image.get_stripe_unit());
245 f->dump_unsigned("stripe_count", image.get_stripe_count());
247 std::cout << "\tstripe unit: " << prettybyte_t(image.get_stripe_unit())
249 << "\tstripe count: " << image.get_stripe_count() << std::endl;
253 if (features & RBD_FEATURE_JOURNALING) {
255 f->dump_string("journal", utils::image_id(image));
257 std::cout << "\tjournal: " << utils::image_id(image) << std::endl;
261 if (features & RBD_FEATURE_JOURNALING) {
263 f->open_object_section("mirroring");
264 f->dump_string("state",
265 utils::mirror_image_state(mirror_image.state));
266 if (mirror_image.state != RBD_MIRROR_IMAGE_DISABLED) {
267 f->dump_string("global_id", mirror_image.global_id);
268 f->dump_bool("primary", mirror_image.primary);
272 std::cout << "\tmirroring state: "
273 << utils::mirror_image_state(mirror_image.state) << std::endl;
274 if (mirror_image.state != RBD_MIRROR_IMAGE_DISABLED) {
275 std::cout << "\tmirroring global id: " << mirror_image.global_id
277 << "\tmirroring primary: "
278 << (mirror_image.primary ? "true" : "false") <<std::endl;
291 void get_arguments(po::options_description *positional,
292 po::options_description *options) {
293 at::add_image_or_snap_spec_options(positional, options,
294 at::ARGUMENT_MODIFIER_NONE);
295 at::add_image_id_option(options);
296 at::add_format_options(options);
299 int execute(const po::variables_map &vm) {
300 size_t arg_index = 0;
301 std::string pool_name;
302 std::string image_name;
303 std::string snap_name;
304 std::string image_id;
306 if (vm.count(at::IMAGE_ID)) {
307 image_id = vm[at::IMAGE_ID].as<std::string>();
310 bool has_image_spec = utils::check_if_image_spec_present(
311 vm, at::ARGUMENT_MODIFIER_NONE, arg_index);
313 if (!image_id.empty() && has_image_spec) {
314 std::cerr << "rbd: trying to access image using both name and id. "
320 if (image_id.empty()) {
321 r = utils::get_pool_image_snapshot_names(vm, at::ARGUMENT_MODIFIER_NONE,
322 &arg_index, &pool_name,
323 &image_name, &snap_name,
324 utils::SNAPSHOT_PRESENCE_PERMITTED,
325 utils::SPEC_VALIDATION_NONE);
327 r = utils::get_pool_snapshot_names(vm, at::ARGUMENT_MODIFIER_NONE,
328 &arg_index, &pool_name, &snap_name,
329 utils::SNAPSHOT_PRESENCE_PERMITTED,
330 utils::SPEC_VALIDATION_NONE);
336 at::Format::Formatter formatter;
337 r = utils::get_formatter(vm, &formatter);
342 librados::Rados rados;
343 librados::IoCtx io_ctx;
345 r = utils::init_and_open_image(pool_name, image_name, image_id, snap_name,
346 true, &rados, &io_ctx, &image);
351 r = do_show_info(io_ctx, image, image_name, image_id, snap_name,
354 std::cerr << "rbd: info: " << cpp_strerror(r) << std::endl;
360 Shell::Action action(
361 {"info"}, {}, "Show information about image size, striping, etc.", "",
362 &get_arguments, &execute);
365 } // namespace action