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-rw-r--r--src/tools/rbd/action/Info.cc471
1 files changed, 471 insertions, 0 deletions
diff --git a/src/tools/rbd/action/Info.cc b/src/tools/rbd/action/Info.cc
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index 000000000..f8d053cd7
--- /dev/null
+++ b/src/tools/rbd/action/Info.cc
@@ -0,0 +1,471 @@
+// -*- 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 <iostream>
+#include <boost/program_options.hpp>
+
+#include "common/Clock.h"
+
+namespace rbd {
+namespace action {
+namespace info {
+
+namespace at = argument_types;
+namespace po = boost::program_options;
+
+static void format_bitmask(Formatter *f, const std::string &name,
+ const std::map<uint64_t, std::string>& mapping,
+ uint64_t bitmask)
+{
+ int count = 0;
+ std::string group_name(name + "s");
+ if (f == NULL) {
+ std::cout << "\t" << group_name << ": ";
+ } else {
+ f->open_array_section(group_name.c_str());
+ }
+ for (std::map<uint64_t, std::string>::const_iterator it = mapping.begin();
+ it != mapping.end(); ++it) {
+ if ((it->first & bitmask) == 0) {
+ continue;
+ }
+
+ if (f == NULL) {
+ if (count++ > 0) {
+ std::cout << ", ";
+ }
+ std::cout << it->second;
+ } else {
+ f->dump_string(name.c_str(), it->second);
+ }
+ }
+ if (f == NULL) {
+ std::cout << std::endl;
+ } else {
+ f->close_section();
+ }
+}
+
+static void format_features(Formatter *f, uint64_t features)
+{
+ format_bitmask(f, "feature", at::ImageFeatures::FEATURE_MAPPING, features);
+}
+
+static void format_op_features(Formatter *f, uint64_t op_features)
+{
+ static std::map<uint64_t, std::string> mapping = {
+ {RBD_OPERATION_FEATURE_CLONE_PARENT, RBD_OPERATION_FEATURE_NAME_CLONE_PARENT},
+ {RBD_OPERATION_FEATURE_CLONE_CHILD, RBD_OPERATION_FEATURE_NAME_CLONE_CHILD},
+ {RBD_OPERATION_FEATURE_GROUP, RBD_OPERATION_FEATURE_NAME_GROUP},
+ {RBD_OPERATION_FEATURE_SNAP_TRASH, RBD_OPERATION_FEATURE_NAME_SNAP_TRASH}};
+ format_bitmask(f, "op_feature", mapping, op_features);
+}
+
+static void format_flags(Formatter *f, uint64_t flags)
+{
+ std::map<uint64_t, std::string> mapping = {
+ {RBD_FLAG_OBJECT_MAP_INVALID, "object map invalid"},
+ {RBD_FLAG_FAST_DIFF_INVALID, "fast diff invalid"}};
+ format_bitmask(f, "flag", mapping, flags);
+}
+
+void format_timestamp(struct timespec timestamp, std::string &timestamp_str) {
+ if(timestamp.tv_sec != 0) {
+ time_t ts = timestamp.tv_sec;
+ timestamp_str = ctime(&ts);
+ timestamp_str = timestamp_str.substr(0, timestamp_str.length() - 1);
+ }
+}
+
+static int do_show_info(librados::IoCtx &io_ctx, librbd::Image& image,
+ const std::string &snapname, Formatter *f)
+{
+ librbd::image_info_t info;
+ uint8_t old_format;
+ uint64_t overlap, features, flags, snap_limit;
+ bool snap_protected = false;
+ librbd::mirror_image_info_t mirror_image;
+ librbd::mirror_image_mode_t mirror_mode = RBD_MIRROR_IMAGE_MODE_JOURNAL;
+ std::vector<librbd::snap_info_t> snaps;
+ int r;
+
+ std::string imgname;
+ r = image.get_name(&imgname);
+ if (r < 0)
+ return r;
+
+ r = image.snap_list(snaps);
+ if (r < 0)
+ return r;
+
+ r = image.stat(info, sizeof(info));
+ if (r < 0)
+ return r;
+
+ r = image.old_format(&old_format);
+ if (r < 0)
+ return r;
+
+ std::string imgid;
+ if (!old_format) {
+ r = image.get_id(&imgid);
+ if (r < 0)
+ return r;
+ }
+
+ std::string data_pool;
+ if (!old_format) {
+ int64_t data_pool_id = image.get_data_pool_id();
+ if (data_pool_id != io_ctx.get_id()) {
+ librados::Rados rados(io_ctx);
+ librados::IoCtx data_io_ctx;
+ r = rados.ioctx_create2(data_pool_id, data_io_ctx);
+ if (r < 0) {
+ data_pool = "<missing data pool " + stringify(data_pool_id) + ">";
+ } else {
+ data_pool = data_io_ctx.get_pool_name();
+ }
+ }
+ }
+
+ r = image.overlap(&overlap);
+ if (r < 0)
+ return r;
+
+ r = image.features(&features);
+ if (r < 0)
+ return r;
+
+ uint64_t op_features;
+ r = image.get_op_features(&op_features);
+ if (r < 0) {
+ return r;
+ }
+
+ r = image.get_flags(&flags);
+ if (r < 0) {
+ return r;
+ }
+
+ if (!snapname.empty()) {
+ r = image.snap_is_protected(snapname.c_str(), &snap_protected);
+ if (r < 0)
+ return r;
+ }
+
+ mirror_image.state = RBD_MIRROR_IMAGE_DISABLED;
+ r = image.mirror_image_get_info(&mirror_image, sizeof(mirror_image));
+ if (r < 0) {
+ return r;
+ }
+
+ if (mirror_image.state != RBD_MIRROR_IMAGE_DISABLED) {
+ r = image.mirror_image_get_mode(&mirror_mode);
+ if (r < 0) {
+ return r;
+ }
+ }
+
+ r = image.snap_get_limit(&snap_limit);
+ if (r < 0)
+ return r;
+
+ std::string prefix = image.get_block_name_prefix();
+
+ librbd::group_info_t group_info;
+ r = image.get_group(&group_info, sizeof(group_info));
+ if (r < 0) {
+ return r;
+ }
+
+ std::string group_string = "";
+ if (RBD_GROUP_INVALID_POOL != group_info.pool) {
+ std::string group_pool;
+ librados::Rados rados(io_ctx);
+ librados::IoCtx group_io_ctx;
+ r = rados.ioctx_create2(group_info.pool, group_io_ctx);
+ if (r < 0) {
+ group_pool = "<missing group pool " + stringify(group_info.pool) + ">";
+ } else {
+ group_pool = group_io_ctx.get_pool_name();
+ }
+
+ group_string = group_pool + "/";
+ if (!io_ctx.get_namespace().empty()) {
+ group_string += io_ctx.get_namespace() + "/";
+ }
+ group_string += group_info.name;
+ }
+
+ struct timespec create_timestamp;
+ image.get_create_timestamp(&create_timestamp);
+
+ std::string create_timestamp_str = "";
+ format_timestamp(create_timestamp, create_timestamp_str);
+
+ struct timespec access_timestamp;
+ image.get_access_timestamp(&access_timestamp);
+
+ std::string access_timestamp_str = "";
+ format_timestamp(access_timestamp, access_timestamp_str);
+
+ struct timespec modify_timestamp;
+ image.get_modify_timestamp(&modify_timestamp);
+
+ std::string modify_timestamp_str = "";
+ format_timestamp(modify_timestamp, modify_timestamp_str);
+
+ if (f) {
+ f->open_object_section("image");
+ f->dump_string("name", imgname);
+ f->dump_string("id", imgid);
+ f->dump_unsigned("size", info.size);
+ f->dump_unsigned("objects", info.num_objs);
+ f->dump_int("order", info.order);
+ f->dump_unsigned("object_size", info.obj_size);
+ f->dump_int("snapshot_count", snaps.size());
+ if (!data_pool.empty()) {
+ f->dump_string("data_pool", data_pool);
+ }
+ f->dump_string("block_name_prefix", prefix);
+ f->dump_int("format", (old_format ? 1 : 2));
+ } else {
+ std::cout << "rbd image '" << imgname << "':\n"
+ << "\tsize " << byte_u_t(info.size) << " in "
+ << info.num_objs << " objects"
+ << std::endl
+ << "\torder " << info.order
+ << " (" << byte_u_t(info.obj_size) << " objects)"
+ << std::endl
+ << "\tsnapshot_count: " << snaps.size()
+ << std::endl;
+ if (!imgid.empty()) {
+ std::cout << "\tid: " << imgid << std::endl;
+ }
+ if (!data_pool.empty()) {
+ std::cout << "\tdata_pool: " << data_pool << std::endl;
+ }
+ std::cout << "\tblock_name_prefix: " << prefix
+ << std::endl
+ << "\tformat: " << (old_format ? "1" : "2")
+ << std::endl;
+ }
+
+ if (!old_format) {
+ format_features(f, features);
+ format_op_features(f, op_features);
+ format_flags(f, flags);
+ }
+
+ if (!group_string.empty()) {
+ if (f) {
+ f->dump_string("group", group_string);
+ } else {
+ std::cout << "\tgroup: " << group_string
+ << std::endl;
+ }
+ }
+
+ if (!create_timestamp_str.empty()) {
+ if (f) {
+ f->dump_string("create_timestamp", create_timestamp_str);
+ } else {
+ std::cout << "\tcreate_timestamp: " << create_timestamp_str
+ << std::endl;
+ }
+ }
+
+ if (!access_timestamp_str.empty()) {
+ if (f) {
+ f->dump_string("access_timestamp", access_timestamp_str);
+ } else {
+ std::cout << "\taccess_timestamp: " << access_timestamp_str
+ << std::endl;
+ }
+ }
+
+ if (!modify_timestamp_str.empty()) {
+ if (f) {
+ f->dump_string("modify_timestamp", modify_timestamp_str);
+ } else {
+ std::cout << "\tmodify_timestamp: " << modify_timestamp_str
+ << std::endl;
+ }
+ }
+
+ // snapshot info, if present
+ if (!snapname.empty()) {
+ if (f) {
+ f->dump_string("protected", snap_protected ? "true" : "false");
+ } else {
+ std::cout << "\tprotected: " << (snap_protected ? "True" : "False")
+ << std::endl;
+ }
+ }
+
+ if (snap_limit < UINT64_MAX) {
+ if (f) {
+ f->dump_unsigned("snapshot_limit", snap_limit);
+ } else {
+ std::cout << "\tsnapshot_limit: " << snap_limit << std::endl;
+ }
+ }
+
+ // parent info, if present
+ librbd::linked_image_spec_t parent_image_spec;
+ librbd::snap_spec_t parent_snap_spec;
+ if ((image.get_parent(&parent_image_spec, &parent_snap_spec) == 0) &&
+ (parent_image_spec.image_name.length() > 0)) {
+ if (f) {
+ f->open_object_section("parent");
+ f->dump_string("pool", parent_image_spec.pool_name);
+ f->dump_string("pool_namespace", parent_image_spec.pool_namespace);
+ f->dump_string("image", parent_image_spec.image_name);
+ f->dump_string("id", parent_image_spec.image_id);
+ f->dump_string("snapshot", parent_snap_spec.name);
+ f->dump_bool("trash", parent_image_spec.trash);
+ f->dump_unsigned("overlap", overlap);
+ f->close_section();
+ } else {
+ std::cout << "\tparent: " << parent_image_spec.pool_name << "/";
+ if (!parent_image_spec.pool_namespace.empty()) {
+ std::cout << parent_image_spec.pool_namespace << "/";
+ }
+ std::cout << parent_image_spec.image_name << "@"
+ << parent_snap_spec.name;
+ if (parent_image_spec.trash) {
+ std::cout << " (trash " << parent_image_spec.image_id << ")";
+ }
+ std::cout << std::endl;
+ std::cout << "\toverlap: " << byte_u_t(overlap) << std::endl;
+ }
+ }
+
+ // striping info, if feature is set
+ if (features & RBD_FEATURE_STRIPINGV2) {
+ if (f) {
+ f->dump_unsigned("stripe_unit", image.get_stripe_unit());
+ f->dump_unsigned("stripe_count", image.get_stripe_count());
+ } else {
+ std::cout << "\tstripe unit: " << byte_u_t(image.get_stripe_unit())
+ << std::endl
+ << "\tstripe count: " << image.get_stripe_count() << std::endl;
+ }
+ }
+
+ if (features & RBD_FEATURE_JOURNALING) {
+ if (f) {
+ f->dump_string("journal", utils::image_id(image));
+ } else {
+ std::cout << "\tjournal: " << utils::image_id(image) << std::endl;
+ }
+ }
+
+ if (features & RBD_FEATURE_JOURNALING ||
+ mirror_image.state != RBD_MIRROR_IMAGE_DISABLED) {
+ if (f) {
+ f->open_object_section("mirroring");
+ f->dump_string("mode",
+ utils::mirror_image_mode(mirror_mode));
+ f->dump_string("state",
+ utils::mirror_image_state(mirror_image.state));
+ if (mirror_image.state != RBD_MIRROR_IMAGE_DISABLED) {
+ f->dump_string("global_id", mirror_image.global_id);
+ f->dump_bool("primary", mirror_image.primary);
+ }
+ f->close_section();
+ } else {
+ std::cout << "\tmirroring state: "
+ << utils::mirror_image_state(mirror_image.state) << std::endl;
+ if (mirror_image.state != RBD_MIRROR_IMAGE_DISABLED) {
+ std::cout << "\tmirroring mode: "
+ << utils::mirror_image_mode(mirror_mode) << std::endl
+ << "\tmirroring global id: " << mirror_image.global_id
+ << std::endl
+ << "\tmirroring primary: "
+ << (mirror_image.primary ? "true" : "false") <<std::endl;
+ }
+ }
+ }
+
+ if (f) {
+ f->close_section();
+ f->flush(std::cout);
+ }
+
+ return 0;
+}
+
+void get_arguments(po::options_description *positional,
+ po::options_description *options) {
+ at::add_image_or_snap_spec_options(positional, options,
+ at::ARGUMENT_MODIFIER_NONE);
+ at::add_image_id_option(options);
+ at::add_format_options(options);
+}
+
+int execute(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_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;
+ }
+
+ 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, snap_name, true, &rados, &io_ctx,
+ &image);
+ if (r < 0) {
+ return r;
+ }
+
+ r = do_show_info(io_ctx, image, snap_name, formatter.get());
+ if (r < 0) {
+ std::cerr << "rbd: info: " << cpp_strerror(r) << std::endl;
+ return r;
+ }
+ return 0;
+}
+
+Shell::Action action(
+ {"info"}, {}, "Show information about image size, striping, etc.", "",
+ &get_arguments, &execute);
+
+} // namespace info
+} // namespace action
+} // namespace rbd
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 17:36:17 +0000