diff options
Diffstat (limited to 'src/librbd/librbd.cc')
| -rw-r--r-- | src/librbd/librbd.cc | 7398 |
1 files changed, 7398 insertions, 0 deletions
diff --git a/src/librbd/librbd.cc b/src/librbd/librbd.cc new file mode 100644 index 000000000..eb2df58e7 --- /dev/null +++ b/src/librbd/librbd.cc @@ -0,0 +1,7398 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab +/* + * Ceph - scalable distributed file system + * + * Copyright (C) 2011 New Dream Network + * + * This is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software + * Foundation. See file COPYING. + * + */ +#include "include/int_types.h" + +#include <errno.h> + +#include "common/deleter.h" +#include "common/dout.h" +#include "common/errno.h" +#include "common/TracepointProvider.h" +#include "include/Context.h" + +#include "cls/rbd/cls_rbd_client.h" +#include "cls/rbd/cls_rbd_types.h" +#include "librbd/Features.h" +#include "librbd/ImageCtx.h" +#include "librbd/ImageState.h" +#include "librbd/internal.h" +#include "librbd/Operations.h" +#include "librbd/Utils.h" +#include "librbd/api/Config.h" +#include "librbd/api/DiffIterate.h" +#include "librbd/api/Group.h" +#include "librbd/api/Image.h" +#include "librbd/api/Io.h" +#include "librbd/api/Migration.h" +#include "librbd/api/Mirror.h" +#include "librbd/api/Namespace.h" +#include "librbd/api/Pool.h" +#include "librbd/api/PoolMetadata.h" +#include "librbd/api/Snapshot.h" +#include "librbd/api/Trash.h" +#include "librbd/io/AioCompletion.h" +#include "librbd/io/ReadResult.h" +#include <algorithm> +#include <string> +#include <vector> + +#ifdef WITH_LTTNG +#define TRACEPOINT_DEFINE +#define TRACEPOINT_PROBE_DYNAMIC_LINKAGE +#include "tracing/librbd.h" +#undef TRACEPOINT_PROBE_DYNAMIC_LINKAGE +#undef TRACEPOINT_DEFINE +#else +#define tracepoint(...) +#endif + +#define dout_subsys ceph_subsys_rbd +#undef dout_prefix +#define dout_prefix *_dout << "librbd: " + +using std::string; +using std::vector; + +using ceph::bufferlist; +using librados::snap_t; +using librados::IoCtx; + +namespace { + +TracepointProvider::Traits tracepoint_traits("librbd_tp.so", "rbd_tracing"); + +struct UserBufferDeleter : public deleter::impl { + CephContext* cct; + librbd::io::AioCompletion* aio_completion; + + UserBufferDeleter(CephContext* cct, librbd::io::AioCompletion* aio_completion) + : deleter::impl(deleter()), cct(cct), aio_completion(aio_completion) { + aio_completion->block(cct); + } + + ~UserBufferDeleter() override { + aio_completion->unblock(cct); + } +}; + +static auto create_write_raw(librbd::ImageCtx *ictx, const char *buf, + size_t len, + librbd::io::AioCompletion* aio_completion) { + if (ictx->disable_zero_copy || aio_completion == nullptr) { + // must copy the buffer if writeback/writearound cache is in-use (or using + // non-AIO) + return buffer::copy(buf, len); + } + + // avoid copying memory for AIO operations, but possibly delay completions + // until the last reference to the user's memory has been released + return ceph::unique_leakable_ptr<ceph::buffer::raw>( + buffer::claim_buffer( + len, const_cast<char*>(buf), + deleter(new UserBufferDeleter(ictx->cct, aio_completion)))); +} + +static int get_iovec_length(const struct iovec *iov, int iovcnt, size_t &len) +{ + len = 0; + + if (iovcnt <= 0) { + return -EINVAL; + } + + for (int i = 0; i < iovcnt; ++i) { + const struct iovec &io = iov[i]; + // check for overflow + if (len + io.iov_len < len) { + return -EINVAL; + } + len += io.iov_len; + } + + return 0; +} + +static bufferlist iovec_to_bufferlist(librbd::ImageCtx *ictx, + const struct iovec *iov, + int iovcnt, + librbd::io::AioCompletion* aio_completion) +{ + bufferlist bl; + for (int i = 0; i < iovcnt; ++i) { + const struct iovec &io = iov[i]; + bl.push_back(create_write_raw(ictx, static_cast<char*>(io.iov_base), + io.iov_len, aio_completion)); + } + return bl; +} + +CephContext* get_cct(IoCtx &io_ctx) { + return reinterpret_cast<CephContext*>(io_ctx.cct()); +} + +librbd::io::AioCompletion* get_aio_completion(librbd::RBD::AioCompletion *comp) { + return reinterpret_cast<librbd::io::AioCompletion *>(comp->pc); +} + +struct C_AioCompletion : public Context { + CephContext *cct; + librbd::io::aio_type_t aio_type; + librbd::io::AioCompletion* aio_comp; + + C_AioCompletion(librbd::ImageCtx *ictx, librbd::io::aio_type_t aio_type, + librbd::io::AioCompletion* aio_comp) + : cct(ictx->cct), aio_type(aio_type), aio_comp(aio_comp) { + aio_comp->init_time(ictx, aio_type); + aio_comp->get(); + } + virtual ~C_AioCompletion() { + aio_comp->put(); + } + + void finish(int r) override { + ldout(cct, 20) << "C_AioCompletion::finish: r=" << r << dendl; + if (r < 0) { + aio_comp->fail(r); + } else { + aio_comp->complete(); + } + } +}; + +struct C_OpenComplete : public C_AioCompletion { + librbd::ImageCtx *ictx; + void **ictxp; + C_OpenComplete(librbd::ImageCtx *ictx, librbd::io::AioCompletion* comp, + void **ictxp) + : C_AioCompletion(ictx, librbd::io::AIO_TYPE_OPEN, comp), + ictx(ictx), ictxp(ictxp) { + } + void finish(int r) override { + ldout(cct, 20) << "C_OpenComplete::finish: r=" << r << dendl; + if (r < 0) { + *ictxp = nullptr; + } else { + *ictxp = ictx; + } + + C_AioCompletion::finish(r); + } +}; + +struct C_OpenAfterCloseComplete : public Context { + librbd::ImageCtx *ictx; + librbd::io::AioCompletion* comp; + void **ictxp; + C_OpenAfterCloseComplete(librbd::ImageCtx *ictx, + librbd::io::AioCompletion* comp, + void **ictxp) + : ictx(ictx), comp(comp), ictxp(ictxp) { + } + void finish(int r) override { + ldout(ictx->cct, 20) << "C_OpenAfterCloseComplete::finish: r=" << r + << dendl; + *ictxp = nullptr; + + ictx->state->open(0, new C_OpenComplete(ictx, comp, ictxp)); + } +}; + +struct C_UpdateWatchCB : public librbd::UpdateWatchCtx { + rbd_update_callback_t watch_cb; + void *arg; + uint64_t handle = 0; + + C_UpdateWatchCB(rbd_update_callback_t watch_cb, void *arg) : + watch_cb(watch_cb), arg(arg) { + } + void handle_notify() override { + watch_cb(arg); + } +}; + +struct C_QuiesceWatchCB : public librbd::QuiesceWatchCtx { + rbd_update_callback_t quiesce_cb; + rbd_update_callback_t unquiesce_cb; + void *arg; + uint64_t handle = 0; + + C_QuiesceWatchCB(rbd_update_callback_t quiesce_cb, + rbd_update_callback_t unquiesce_cb, void *arg) : + quiesce_cb(quiesce_cb), unquiesce_cb(unquiesce_cb), arg(arg) { + } + void handle_quiesce() override { + quiesce_cb(arg); + } + void handle_unquiesce() override { + unquiesce_cb(arg); + } +}; + +void group_image_status_cpp_to_c(const librbd::group_image_info_t &cpp_info, + rbd_group_image_info_t *c_info) { + c_info->name = strdup(cpp_info.name.c_str()); + c_info->pool = cpp_info.pool; + c_info->state = cpp_info.state; +} + +void group_info_cpp_to_c(const librbd::group_info_t &cpp_info, + rbd_group_info_t *c_info) { + c_info->name = strdup(cpp_info.name.c_str()); + c_info->pool = cpp_info.pool; +} + +void group_snap_info_cpp_to_c(const librbd::group_snap_info_t &cpp_info, + rbd_group_snap_info_t *c_info) { + c_info->name = strdup(cpp_info.name.c_str()); + c_info->state = cpp_info.state; +} + +void mirror_image_info_cpp_to_c(const librbd::mirror_image_info_t &cpp_info, + rbd_mirror_image_info_t *c_info) { + c_info->global_id = strdup(cpp_info.global_id.c_str()); + c_info->state = cpp_info.state; + c_info->primary = cpp_info.primary; +} + +int get_local_mirror_image_site_status( + const librbd::mirror_image_global_status_t& status, + librbd::mirror_image_site_status_t* local_status) { + auto it = std::find_if(status.site_statuses.begin(), + status.site_statuses.end(), + [](const librbd::mirror_image_site_status_t& s) { + return (s.mirror_uuid == + cls::rbd::MirrorImageSiteStatus::LOCAL_MIRROR_UUID); + }); + if (it == status.site_statuses.end()) { + return -ENOENT; + } + + *local_status = *it; + return 0; +} + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + +int mirror_image_global_status_cpp_to_c( + const librbd::mirror_image_global_status_t &cpp_status, + rbd_mirror_image_status_t *c_status) { + c_status->name = strdup(cpp_status.name.c_str()); + mirror_image_info_cpp_to_c(cpp_status.info, &c_status->info); + + librbd::mirror_image_site_status_t local_status; + int r = get_local_mirror_image_site_status(cpp_status, &local_status); + if (r < 0) { + return r; + } + + c_status->state = local_status.state; + c_status->description = strdup(local_status.description.c_str()); + c_status->last_update = local_status.last_update; + c_status->up = local_status.up; + return 0; +} + +#pragma GCC diagnostic pop + +void mirror_image_global_status_cpp_to_c( + const librbd::mirror_image_global_status_t &cpp_status, + rbd_mirror_image_global_status_t *c_status) { + c_status->name = strdup(cpp_status.name.c_str()); + mirror_image_info_cpp_to_c(cpp_status.info, &c_status->info); + + c_status->site_statuses_count = cpp_status.site_statuses.size(); + c_status->site_statuses = (rbd_mirror_image_site_status_t*)calloc( + cpp_status.site_statuses.size(), sizeof(rbd_mirror_image_site_status_t)); + + auto idx = 0U; + for (auto it = cpp_status.site_statuses.begin(); + it != cpp_status.site_statuses.end(); ++it) { + auto& s_status = c_status->site_statuses[idx++]; + s_status.mirror_uuid = strdup(it->mirror_uuid.c_str()); + s_status.state = it->state; + s_status.description = strdup(it->description.c_str()); + s_status.last_update = it->last_update; + s_status.up = it->up; + } +} + +void trash_image_info_cpp_to_c(const librbd::trash_image_info_t &cpp_info, + rbd_trash_image_info_t *c_info) { + c_info->id = strdup(cpp_info.id.c_str()); + c_info->name = strdup(cpp_info.name.c_str()); + c_info->source = cpp_info.source; + c_info->deletion_time = cpp_info.deletion_time; + c_info->deferment_end_time = cpp_info.deferment_end_time; +} + +void config_option_cpp_to_c(const librbd::config_option_t &cpp_option, + rbd_config_option_t *c_option) { + c_option->name = strdup(cpp_option.name.c_str()); + c_option->value = strdup(cpp_option.value.c_str()); + c_option->source = cpp_option.source; +} + +void config_option_cleanup(rbd_config_option_t &option) { + free(option.name); + free(option.value); +} + +struct C_MirrorImageGetInfo : public Context { + rbd_mirror_image_info_t *mirror_image_info; + Context *on_finish; + + librbd::mirror_image_info_t cpp_mirror_image_info; + + C_MirrorImageGetInfo(rbd_mirror_image_info_t *mirror_image_info, + Context *on_finish) + : mirror_image_info(mirror_image_info), on_finish(on_finish) { + } + + void finish(int r) override { + if (r < 0) { + on_finish->complete(r); + return; + } + + mirror_image_info_cpp_to_c(cpp_mirror_image_info, mirror_image_info); + on_finish->complete(0); + } +}; + +struct C_MirrorImageGetGlobalStatus : public Context { + rbd_mirror_image_global_status_t *mirror_image_global_status; + Context *on_finish; + + librbd::mirror_image_global_status_t cpp_mirror_image_global_status; + + C_MirrorImageGetGlobalStatus( + rbd_mirror_image_global_status_t *mirror_image_global_status, + Context *on_finish) + : mirror_image_global_status(mirror_image_global_status), + on_finish(on_finish) { + } + + void finish(int r) override { + if (r < 0) { + on_finish->complete(r); + return; + } + + mirror_image_global_status_cpp_to_c(cpp_mirror_image_global_status, + mirror_image_global_status); + on_finish->complete(0); + } +}; + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + +struct C_MirrorImageGetStatus : public Context { + librbd::mirror_image_status_t *mirror_image_status_cpp = nullptr; + rbd_mirror_image_status_t *mirror_image_status = nullptr; + Context *on_finish; + + librbd::mirror_image_global_status_t cpp_mirror_image_global_status; + + C_MirrorImageGetStatus(rbd_mirror_image_status_t *mirror_image_status, + Context *on_finish) + : mirror_image_status(mirror_image_status), on_finish(on_finish) { + } + C_MirrorImageGetStatus(librbd::mirror_image_status_t *mirror_image_status, + Context *on_finish) + : mirror_image_status_cpp(mirror_image_status), on_finish(on_finish) { + } + + + void finish(int r) override { + if (r < 0) { + on_finish->complete(r); + return; + } + + if (mirror_image_status != nullptr) { + r = mirror_image_global_status_cpp_to_c(cpp_mirror_image_global_status, + mirror_image_status); + } else if (mirror_image_status_cpp != nullptr) { + librbd::mirror_image_site_status_t local_status; + r = get_local_mirror_image_site_status(cpp_mirror_image_global_status, + &local_status); + if (r >= 0) { + *mirror_image_status_cpp = { + cpp_mirror_image_global_status.name, + cpp_mirror_image_global_status.info, + local_status.state, local_status.description, + local_status.last_update, local_status.up}; + } + } + on_finish->complete(r); + } +}; + +#pragma GCC diagnostic pop + +} // anonymous namespace + +namespace librbd { + ProgressContext::~ProgressContext() + { + } + + class CProgressContext : public ProgressContext + { + public: + CProgressContext(librbd_progress_fn_t fn, void *data) + : m_fn(fn), m_data(data) + { + } + int update_progress(uint64_t offset, uint64_t src_size) override + { + return m_fn(offset, src_size, m_data); + } + private: + librbd_progress_fn_t m_fn; + void *m_data; + }; + + /* + * Pool stats + */ + PoolStats::PoolStats() { + rbd_pool_stats_create(&pool_stats); + } + + PoolStats::~PoolStats() { + rbd_pool_stats_destroy(pool_stats); + } + + int PoolStats::add(rbd_pool_stat_option_t option, uint64_t* opt_val) { + return rbd_pool_stats_option_add_uint64(pool_stats, option, opt_val); + } + + /* + * RBD + */ + RBD::RBD() + { + } + + RBD::~RBD() + { + } + + void RBD::version(int *major, int *minor, int *extra) + { + rbd_version(major, minor, extra); + } + + int RBD::open(IoCtx& io_ctx, Image& image, const char *name) + { + return open(io_ctx, image, name, NULL); + } + + int RBD::open_by_id(IoCtx& io_ctx, Image& image, const char *id) + { + return open_by_id(io_ctx, image, id, nullptr); + } + + int RBD::open(IoCtx& io_ctx, Image& image, const char *name, + const char *snap_name) + { + ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, false); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); + + if (image.ctx != NULL) { + reinterpret_cast<ImageCtx*>(image.ctx)->state->close(); + image.ctx = NULL; + } + + int r = ictx->state->open(0); + if (r < 0) { + tracepoint(librbd, open_image_exit, r); + return r; + } + + image.ctx = (image_ctx_t) ictx; + tracepoint(librbd, open_image_exit, 0); + return 0; + } + + int RBD::open_by_id(IoCtx& io_ctx, Image& image, const char *id, + const char *snap_name) + { + ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, false); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, open_image_by_id_enter, ictx, ictx->id.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + + if (image.ctx != nullptr) { + reinterpret_cast<ImageCtx*>(image.ctx)->state->close(); + image.ctx = nullptr; + } + + int r = ictx->state->open(0); + if (r < 0) { + tracepoint(librbd, open_image_by_id_exit, r); + return r; + } + + image.ctx = (image_ctx_t) ictx; + tracepoint(librbd, open_image_by_id_exit, 0); + return 0; + } + + int RBD::aio_open(IoCtx& io_ctx, Image& image, const char *name, + const char *snap_name, RBD::AioCompletion *c) + { + ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, false); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, c->pc); + + if (image.ctx != NULL) { + reinterpret_cast<ImageCtx*>(image.ctx)->state->close( + new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx)); + } else { + ictx->state->open(0, new C_OpenComplete(ictx, get_aio_completion(c), + &image.ctx)); + } + tracepoint(librbd, aio_open_image_exit, 0); + return 0; + } + + int RBD::aio_open_by_id(IoCtx& io_ctx, Image& image, const char *id, + const char *snap_name, RBD::AioCompletion *c) + { + ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, false); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, aio_open_image_by_id_enter, ictx, ictx->id.c_str(), + ictx->snap_name.c_str(), ictx->read_only, c->pc); + + if (image.ctx != nullptr) { + reinterpret_cast<ImageCtx*>(image.ctx)->state->close( + new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx)); + } else { + ictx->state->open(0, new C_OpenComplete(ictx, get_aio_completion(c), + &image.ctx)); + } + tracepoint(librbd, aio_open_image_by_id_exit, 0); + return 0; + } + + int RBD::open_read_only(IoCtx& io_ctx, Image& image, const char *name, + const char *snap_name) + { + ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, true); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); + + if (image.ctx != NULL) { + reinterpret_cast<ImageCtx*>(image.ctx)->state->close(); + image.ctx = NULL; + } + + int r = ictx->state->open(0); + if (r < 0) { + tracepoint(librbd, open_image_exit, r); + return r; + } + + image.ctx = (image_ctx_t) ictx; + tracepoint(librbd, open_image_exit, 0); + return 0; + } + + int RBD::open_by_id_read_only(IoCtx& io_ctx, Image& image, const char *id, + const char *snap_name) + { + ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, true); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, open_image_by_id_enter, ictx, ictx->id.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + + if (image.ctx != nullptr) { + reinterpret_cast<ImageCtx*>(image.ctx)->state->close(); + image.ctx = nullptr; + } + + int r = ictx->state->open(0); + if (r < 0) { + tracepoint(librbd, open_image_by_id_exit, r); + return r; + } + + image.ctx = (image_ctx_t) ictx; + tracepoint(librbd, open_image_by_id_exit, 0); + return 0; + } + + int RBD::aio_open_read_only(IoCtx& io_ctx, Image& image, const char *name, + const char *snap_name, RBD::AioCompletion *c) + { + ImageCtx *ictx = new ImageCtx(name, "", snap_name, io_ctx, true); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, c->pc); + + if (image.ctx != NULL) { + reinterpret_cast<ImageCtx*>(image.ctx)->state->close( + new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx)); + } else { + ictx->state->open(0, new C_OpenComplete(ictx, get_aio_completion(c), + &image.ctx)); + } + tracepoint(librbd, aio_open_image_exit, 0); + return 0; + } + + int RBD::aio_open_by_id_read_only(IoCtx& io_ctx, Image& image, const char *id, + const char *snap_name, RBD::AioCompletion *c) + { + ImageCtx *ictx = new ImageCtx("", id, snap_name, io_ctx, true); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, aio_open_image_by_id_enter, ictx, ictx->id.c_str(), + ictx->snap_name.c_str(), ictx->read_only, c->pc); + + if (image.ctx != nullptr) { + reinterpret_cast<ImageCtx*>(image.ctx)->state->close( + new C_OpenAfterCloseComplete(ictx, get_aio_completion(c), &image.ctx)); + } else { + ictx->state->open(0, new C_OpenComplete(ictx, get_aio_completion(c), + &image.ctx)); + } + tracepoint(librbd, aio_open_image_by_id_exit, 0); + return 0; + } + + int RBD::features_to_string(uint64_t features, std::string *str_features) + { + std::stringstream err; + *str_features = librbd::rbd_features_to_string(features, &err); + if (!err.str().empty()) { + return -EINVAL; + } + + return 0; + } + + int RBD::features_from_string(const std::string str_features, uint64_t *features) + { + std::stringstream err; + *features = librbd::rbd_features_from_string(str_features, &err); + if (!err.str().empty()) { + return -EINVAL; + } + + return 0; + } + + int RBD::create(IoCtx& io_ctx, const char *name, uint64_t size, int *order) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, create_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, *order); + int r = librbd::create(io_ctx, name, size, order); + tracepoint(librbd, create_exit, r, *order); + return r; + } + + int RBD::create2(IoCtx& io_ctx, const char *name, uint64_t size, + uint64_t features, int *order) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, create2_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order); + int r = librbd::create(io_ctx, name, size, false, features, order, 0, 0); + tracepoint(librbd, create2_exit, r, *order); + return r; + } + + int RBD::create3(IoCtx& io_ctx, const char *name, uint64_t size, + uint64_t features, int *order, uint64_t stripe_unit, + uint64_t stripe_count) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, create3_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order, stripe_unit, stripe_count); + int r = librbd::create(io_ctx, name, size, false, features, order, + stripe_unit, stripe_count); + tracepoint(librbd, create3_exit, r, *order); + return r; + } + + int RBD::create4(IoCtx& io_ctx, const char *name, uint64_t size, + ImageOptions& opts) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, create4_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, opts.opts); + int r = librbd::create(io_ctx, name, "", size, opts, "", "", false); + tracepoint(librbd, create4_exit, r); + return r; + } + + int RBD::clone(IoCtx& p_ioctx, const char *p_name, const char *p_snap_name, + IoCtx& c_ioctx, const char *c_name, uint64_t features, + int *c_order) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioctx)); + tracepoint(librbd, clone_enter, p_ioctx.get_pool_name().c_str(), p_ioctx.get_id(), p_name, p_snap_name, c_ioctx.get_pool_name().c_str(), c_ioctx.get_id(), c_name, features); + int r = librbd::clone(p_ioctx, p_name, p_snap_name, c_ioctx, c_name, + features, c_order, 0, 0); + tracepoint(librbd, clone_exit, r, *c_order); + return r; + } + + int RBD::clone2(IoCtx& p_ioctx, const char *p_name, const char *p_snap_name, + IoCtx& c_ioctx, const char *c_name, uint64_t features, + int *c_order, uint64_t stripe_unit, int stripe_count) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioctx)); + tracepoint(librbd, clone2_enter, p_ioctx.get_pool_name().c_str(), p_ioctx.get_id(), p_name, p_snap_name, c_ioctx.get_pool_name().c_str(), c_ioctx.get_id(), c_name, features, stripe_unit, stripe_count); + int r = librbd::clone(p_ioctx, p_name, p_snap_name, c_ioctx, c_name, + features, c_order, stripe_unit, stripe_count); + tracepoint(librbd, clone2_exit, r, *c_order); + return r; + } + + int RBD::clone3(IoCtx& p_ioctx, const char *p_name, const char *p_snap_name, + IoCtx& c_ioctx, const char *c_name, ImageOptions& c_opts) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioctx)); + tracepoint(librbd, clone3_enter, p_ioctx.get_pool_name().c_str(), p_ioctx.get_id(), p_name, p_snap_name, c_ioctx.get_pool_name().c_str(), c_ioctx.get_id(), c_name, c_opts.opts); + int r = librbd::clone(p_ioctx, nullptr, p_name, p_snap_name, c_ioctx, + nullptr, c_name, c_opts, "", ""); + tracepoint(librbd, clone3_exit, r); + return r; + } + + int RBD::remove(IoCtx& io_ctx, const char *name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Image<>::remove(io_ctx, name, prog_ctx); + tracepoint(librbd, remove_exit, r); + return r; + } + + int RBD::remove_with_progress(IoCtx& io_ctx, const char *name, + ProgressContext& pctx) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name); + int r = librbd::api::Image<>::remove(io_ctx, name, pctx); + tracepoint(librbd, remove_exit, r); + return r; + } + + int RBD::trash_move(IoCtx &io_ctx, const char *name, uint64_t delay) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_move_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), name); + int r = librbd::api::Trash<>::move(io_ctx, RBD_TRASH_IMAGE_SOURCE_USER, + name, delay); + tracepoint(librbd, trash_move_exit, r); + return r; + } + + int RBD::trash_get(IoCtx &io_ctx, const char *id, trash_image_info_t *info) { + return librbd::api::Trash<>::get(io_ctx, id, info); + } + + int RBD::trash_list(IoCtx &io_ctx, vector<trash_image_info_t> &entries) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_list_enter, + io_ctx.get_pool_name().c_str(), io_ctx.get_id()); + int r = librbd::api::Trash<>::list(io_ctx, entries, true); +#ifdef WITH_LTTNG + if (r >= 0) { + for (const auto& entry : entries) { + tracepoint(librbd, trash_list_entry, entry.id.c_str()); + } + } +#endif + tracepoint(librbd, trash_list_exit, r, r); + return r; + } + + int RBD::trash_remove(IoCtx &io_ctx, const char *image_id, bool force) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_id, force); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Trash<>::remove(io_ctx, image_id, force, prog_ctx); + tracepoint(librbd, trash_remove_exit, r); + return r; + } + + int RBD::trash_remove_with_progress(IoCtx &io_ctx, const char *image_id, + bool force, ProgressContext &pctx) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_id, force); + int r = librbd::api::Trash<>::remove(io_ctx, image_id, force, pctx); + tracepoint(librbd, trash_remove_exit, r); + return r; + } + + int RBD::trash_restore(IoCtx &io_ctx, const char *id, const char *name) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_undelete_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), id, name); + int r = librbd::api::Trash<>::restore( + io_ctx, librbd::api::Trash<>::ALLOWED_RESTORE_SOURCES, id, name); + tracepoint(librbd, trash_undelete_exit, r); + return r; + } + + int RBD::trash_purge(IoCtx &io_ctx, time_t expire_ts, float threshold) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_purge_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), expire_ts, threshold); + NoOpProgressContext nop_pctx; + int r = librbd::api::Trash<>::purge(io_ctx, expire_ts, threshold, nop_pctx); + tracepoint(librbd, trash_purge_exit, r); + return r; + } + + int RBD::trash_purge_with_progress(IoCtx &io_ctx, time_t expire_ts, + float threshold, ProgressContext &pctx) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_purge_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), expire_ts, threshold); + int r = librbd::api::Trash<>::purge(io_ctx, expire_ts, threshold, pctx); + tracepoint(librbd, trash_purge_exit, r); + return r; + } + + int RBD::namespace_create(IoCtx& io_ctx, const char *namespace_name) { + return librbd::api::Namespace<>::create(io_ctx, namespace_name); + } + + int RBD::namespace_remove(IoCtx& io_ctx, const char *namespace_name) { + return librbd::api::Namespace<>::remove(io_ctx, namespace_name); + } + + int RBD::namespace_list(IoCtx& io_ctx, + std::vector<std::string>* namespace_names) { + return librbd::api::Namespace<>::list(io_ctx, namespace_names); + } + + int RBD::namespace_exists(IoCtx& io_ctx, const char *namespace_name, + bool *exists) { + return librbd::api::Namespace<>::exists(io_ctx, namespace_name, exists); + } + + int RBD::pool_init(IoCtx& io_ctx, bool force) { + return librbd::api::Pool<>::init(io_ctx, force); + } + + int RBD::pool_stats_get(IoCtx& io_ctx, PoolStats* stats) { + auto pool_stat_options = + reinterpret_cast<librbd::api::Pool<>::StatOptions*>(stats->pool_stats); + return librbd::api::Pool<>::get_stats(io_ctx, pool_stat_options); + } + + int RBD::list(IoCtx& io_ctx, vector<string>& names) + { + std::vector<image_spec_t> image_specs; + int r = list2(io_ctx, &image_specs); + if (r < 0) { + return r; + } + + names.clear(); + for (auto& it : image_specs) { + names.push_back(it.name); + } + return 0; + } + + int RBD::list2(IoCtx& io_ctx, std::vector<image_spec_t> *images) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, list_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id()); + + int r = librbd::api::Image<>::list_images(io_ctx, images); +#ifdef WITH_LTTNG + if (r >= 0) { + for (auto& it : *images) { + tracepoint(librbd, list_entry, it.name.c_str()); + } + } +#endif + tracepoint(librbd, list_exit, r, r); + return r; + } + + int RBD::rename(IoCtx& src_io_ctx, const char *srcname, const char *destname) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(src_io_ctx)); + tracepoint(librbd, rename_enter, src_io_ctx.get_pool_name().c_str(), src_io_ctx.get_id(), srcname, destname); + int r = librbd::rename(src_io_ctx, srcname, destname); + tracepoint(librbd, rename_exit, r); + return r; + } + + int RBD::migration_prepare(IoCtx& io_ctx, const char *image_name, + IoCtx& dest_io_ctx, const char *dest_image_name, + ImageOptions& opts) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_prepare_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name, dest_io_ctx.get_pool_name().c_str(), + dest_io_ctx.get_id(), dest_image_name, opts.opts); + int r = librbd::api::Migration<>::prepare(io_ctx, image_name, dest_io_ctx, + dest_image_name, opts); + tracepoint(librbd, migration_prepare_exit, r); + return r; + } + + int RBD::migration_prepare_import(const char *source_spec, IoCtx& dest_io_ctx, + const char *dest_image_name, + ImageOptions& opts) { + return librbd::api::Migration<>::prepare_import(source_spec, dest_io_ctx, + dest_image_name, opts); + } + + int RBD::migration_execute(IoCtx& io_ctx, const char *image_name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_execute_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Migration<>::execute(io_ctx, image_name, prog_ctx); + tracepoint(librbd, migration_execute_exit, r); + return r; + } + + int RBD::migration_execute_with_progress(IoCtx& io_ctx, + const char *image_name, + librbd::ProgressContext &prog_ctx) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_execute_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + int r = librbd::api::Migration<>::execute(io_ctx, image_name, prog_ctx); + tracepoint(librbd, migration_execute_exit, r); + return r; + } + + int RBD::migration_abort(IoCtx& io_ctx, const char *image_name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_abort_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Migration<>::abort(io_ctx, image_name, prog_ctx); + tracepoint(librbd, migration_abort_exit, r); + return r; + } + + int RBD::migration_abort_with_progress(IoCtx& io_ctx, const char *image_name, + librbd::ProgressContext &prog_ctx) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_abort_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + int r = librbd::api::Migration<>::abort(io_ctx, image_name, prog_ctx); + tracepoint(librbd, migration_abort_exit, r); + return r; + } + + int RBD::migration_commit(IoCtx& io_ctx, const char *image_name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_commit_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Migration<>::commit(io_ctx, image_name, prog_ctx); + tracepoint(librbd, migration_commit_exit, r); + return r; + } + + int RBD::migration_commit_with_progress(IoCtx& io_ctx, const char *image_name, + librbd::ProgressContext &prog_ctx) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_commit_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + int r = librbd::api::Migration<>::commit(io_ctx, image_name, prog_ctx); + tracepoint(librbd, migration_commit_exit, r); + return r; + } + + int RBD::migration_status(IoCtx& io_ctx, const char *image_name, + image_migration_status_t *status, + size_t status_size) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_status_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + + if (status_size != sizeof(image_migration_status_t)) { + tracepoint(librbd, migration_status_exit, -ERANGE); + return -ERANGE; + } + + int r = librbd::api::Migration<>::status(io_ctx, image_name, status); + tracepoint(librbd, migration_status_exit, r); + return r; + } + + int RBD::mirror_mode_get(IoCtx& io_ctx, rbd_mirror_mode_t *mirror_mode) { + return librbd::api::Mirror<>::mode_get(io_ctx, mirror_mode); + } + + int RBD::mirror_mode_set(IoCtx& io_ctx, rbd_mirror_mode_t mirror_mode) { + return librbd::api::Mirror<>::mode_set(io_ctx, mirror_mode); + } + + int RBD::mirror_uuid_get(IoCtx& io_ctx, std::string* mirror_uuid) { + return librbd::api::Mirror<>::uuid_get(io_ctx, mirror_uuid); + } + + int RBD::mirror_site_name_get(librados::Rados& rados, + std::string* site_name) { + return librbd::api::Mirror<>::site_name_get(rados, site_name); + } + + int RBD::mirror_site_name_set(librados::Rados& rados, + const std::string& site_name) { + return librbd::api::Mirror<>::site_name_set(rados, site_name); + } + + int RBD::mirror_peer_bootstrap_create(IoCtx& io_ctx, std::string* token) { + return librbd::api::Mirror<>::peer_bootstrap_create(io_ctx, token); + } + + int RBD::mirror_peer_bootstrap_import(IoCtx& io_ctx, + rbd_mirror_peer_direction_t direction, + const std::string& token) { + return librbd::api::Mirror<>::peer_bootstrap_import(io_ctx, direction, + token); + } + + int RBD::mirror_peer_site_add(IoCtx& io_ctx, std::string *uuid, + mirror_peer_direction_t direction, + const std::string &site_name, + const std::string &client_name) { + return librbd::api::Mirror<>::peer_site_add( + io_ctx, uuid, direction, site_name, client_name); + } + + int RBD::mirror_peer_site_remove(IoCtx& io_ctx, const std::string &uuid) { + return librbd::api::Mirror<>::peer_site_remove(io_ctx, uuid); + } + + int RBD::mirror_peer_site_list( + IoCtx& io_ctx, std::vector<mirror_peer_site_t> *peer_sites) { + return librbd::api::Mirror<>::peer_site_list(io_ctx, peer_sites); + } + + int RBD::mirror_peer_site_set_client_name( + IoCtx& io_ctx, const std::string &uuid, const std::string &client_name) { + return librbd::api::Mirror<>::peer_site_set_client(io_ctx, uuid, + client_name); + } + + int RBD::mirror_peer_site_set_name(IoCtx& io_ctx, const std::string &uuid, + const std::string &site_name) { + return librbd::api::Mirror<>::peer_site_set_name(io_ctx, uuid, + site_name); + } + + int RBD::mirror_peer_site_set_direction(IoCtx& io_ctx, + const std::string& uuid, + mirror_peer_direction_t direction) { + return librbd::api::Mirror<>::peer_site_set_direction(io_ctx, uuid, + direction); + } + + int RBD::mirror_peer_site_get_attributes( + IoCtx& io_ctx, const std::string &uuid, + std::map<std::string, std::string> *key_vals) { + return librbd::api::Mirror<>::peer_site_get_attributes(io_ctx, uuid, + key_vals); + } + + int RBD::mirror_peer_site_set_attributes( + IoCtx& io_ctx, const std::string &uuid, + const std::map<std::string, std::string>& key_vals) { + return librbd::api::Mirror<>::peer_site_set_attributes(io_ctx, uuid, + key_vals); + } + + int RBD::mirror_image_global_status_list( + IoCtx& io_ctx, const std::string &start_id, size_t max, + std::map<std::string, mirror_image_global_status_t> *global_statuses) { + return librbd::api::Mirror<>::image_global_status_list( + io_ctx, start_id, max, global_statuses); + } + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + + int RBD::mirror_peer_add(IoCtx& io_ctx, std::string *uuid, + const std::string &cluster_name, + const std::string &client_name) { + return librbd::api::Mirror<>::peer_site_add( + io_ctx, uuid, RBD_MIRROR_PEER_DIRECTION_RX_TX, cluster_name, client_name); + } + + int RBD::mirror_peer_remove(IoCtx& io_ctx, const std::string &uuid) { + return librbd::api::Mirror<>::peer_site_remove(io_ctx, uuid); + } + + int RBD::mirror_peer_list(IoCtx& io_ctx, std::vector<mirror_peer_t> *peers) { + std::vector<mirror_peer_site_t> peer_sites; + int r = librbd::api::Mirror<>::peer_site_list(io_ctx, &peer_sites); + if (r < 0) { + return r; + } + + peers->clear(); + peers->reserve(peer_sites.size()); + for (auto& peer_site : peer_sites) { + peers->push_back({peer_site.uuid, peer_site.site_name, + peer_site.client_name}); + } + return 0; + } + + int RBD::mirror_peer_set_client(IoCtx& io_ctx, const std::string &uuid, + const std::string &client_name) { + return librbd::api::Mirror<>::peer_site_set_client(io_ctx, uuid, + client_name); + } + + int RBD::mirror_peer_set_cluster(IoCtx& io_ctx, const std::string &uuid, + const std::string &cluster_name) { + return librbd::api::Mirror<>::peer_site_set_name(io_ctx, uuid, + cluster_name); + } + + int RBD::mirror_peer_get_attributes( + IoCtx& io_ctx, const std::string &uuid, + std::map<std::string, std::string> *key_vals) { + return librbd::api::Mirror<>::peer_site_get_attributes(io_ctx, uuid, + key_vals); + } + + int RBD::mirror_peer_set_attributes( + IoCtx& io_ctx, const std::string &uuid, + const std::map<std::string, std::string>& key_vals) { + return librbd::api::Mirror<>::peer_site_set_attributes(io_ctx, uuid, + key_vals); + } + + int RBD::mirror_image_status_list(IoCtx& io_ctx, const std::string &start_id, + size_t max, std::map<std::string, mirror_image_status_t> *images) { + std::map<std::string, mirror_image_global_status_t> global_statuses; + + int r = librbd::api::Mirror<>::image_global_status_list( + io_ctx, start_id, max, &global_statuses); + if (r < 0) { + return r; + } + + images->clear(); + for (auto &[id, global_status] : global_statuses) { + if (global_status.site_statuses.empty() || + global_status.site_statuses[0].mirror_uuid != + cls::rbd::MirrorImageSiteStatus::LOCAL_MIRROR_UUID) { + continue; + } + + auto& site_status = global_status.site_statuses[0]; + (*images)[id] = mirror_image_status_t{ + global_status.name, global_status.info, site_status.state, + site_status.description, site_status.last_update, site_status.up}; + } + + return 0; + } + +#pragma GCC diagnostic pop + + int RBD::mirror_image_status_summary(IoCtx& io_ctx, + std::map<mirror_image_status_state_t, int> *states) { + return librbd::api::Mirror<>::image_status_summary(io_ctx, states); + } + + int RBD::mirror_image_instance_id_list(IoCtx& io_ctx, + const std::string &start_id, size_t max, + std::map<std::string, std::string> *instance_ids) { + return librbd::api::Mirror<>::image_instance_id_list(io_ctx, start_id, max, + instance_ids); + } + + int RBD::mirror_image_info_list( + IoCtx& io_ctx, mirror_image_mode_t *mode_filter, + const std::string &start_id, size_t max, + std::map<std::string, std::pair<mirror_image_mode_t, + mirror_image_info_t>> *entries) { + return librbd::api::Mirror<>::image_info_list(io_ctx, mode_filter, start_id, + max, entries); + } + + int RBD::group_create(IoCtx& io_ctx, const char *group_name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, group_create_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), group_name); + int r = librbd::api::Group<>::create(io_ctx, group_name); + tracepoint(librbd, group_create_exit, r); + return r; + } + + int RBD::group_remove(IoCtx& io_ctx, const char *group_name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, group_remove_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), group_name); + int r = librbd::api::Group<>::remove(io_ctx, group_name); + tracepoint(librbd, group_remove_exit, r); + return r; + } + + int RBD::group_list(IoCtx& io_ctx, vector<string> *names) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, group_list_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id()); + + int r = librbd::api::Group<>::list(io_ctx, names); + if (r >= 0) { + for (auto itr : *names) { + tracepoint(librbd, group_list_entry, itr.c_str()); + } + } + tracepoint(librbd, group_list_exit, r); + return r; + } + + int RBD::group_rename(IoCtx& io_ctx, const char *src_name, + const char *dest_name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, group_rename_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), src_name, dest_name); + int r = librbd::api::Group<>::rename(io_ctx, src_name, dest_name); + tracepoint(librbd, group_rename_exit, r); + return r; + } + + int RBD::group_image_add(IoCtx& group_ioctx, const char *group_name, + IoCtx& image_ioctx, const char *image_name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_image_add_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, + image_ioctx.get_pool_name().c_str(), + image_ioctx.get_id(), image_name); + int r = librbd::api::Group<>::image_add(group_ioctx, group_name, + image_ioctx, image_name); + tracepoint(librbd, group_image_add_exit, r); + return r; + } + + int RBD::group_image_remove(IoCtx& group_ioctx, const char *group_name, + IoCtx& image_ioctx, const char *image_name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_image_remove_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, + image_ioctx.get_pool_name().c_str(), + image_ioctx.get_id(), image_name); + int r = librbd::api::Group<>::image_remove(group_ioctx, group_name, + image_ioctx, image_name); + tracepoint(librbd, group_image_remove_exit, r); + return r; + } + + int RBD::group_image_remove_by_id(IoCtx& group_ioctx, const char *group_name, + IoCtx& image_ioctx, const char *image_id) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_image_remove_by_id_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, + image_ioctx.get_pool_name().c_str(), + image_ioctx.get_id(), image_id); + int r = librbd::api::Group<>::image_remove_by_id(group_ioctx, group_name, + image_ioctx, image_id); + tracepoint(librbd, group_image_remove_by_id_exit, r); + return r; + } + + int RBD::group_image_list(IoCtx& group_ioctx, const char *group_name, + std::vector<group_image_info_t> *images, + size_t group_image_info_size) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_image_list_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name); + + if (group_image_info_size != sizeof(group_image_info_t)) { + tracepoint(librbd, group_image_list_exit, -ERANGE); + return -ERANGE; + } + + int r = librbd::api::Group<>::image_list(group_ioctx, group_name, images); + tracepoint(librbd, group_image_list_exit, r); + return r; + } + + int RBD::group_snap_create(IoCtx& group_ioctx, const char *group_name, + const char *snap_name) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_create_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + int r = librbd::api::Group<>::snap_create(group_ioctx, group_name, + snap_name, 0); + tracepoint(librbd, group_snap_create_exit, r); + return r; + } + + int RBD::group_snap_create2(IoCtx& group_ioctx, const char *group_name, + const char *snap_name, uint32_t flags) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_create_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + int r = librbd::api::Group<>::snap_create(group_ioctx, group_name, + snap_name, flags); + tracepoint(librbd, group_snap_create_exit, r); + return r; + } + + int RBD::group_snap_remove(IoCtx& group_ioctx, const char *group_name, + const char *snap_name) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_remove_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + int r = librbd::api::Group<>::snap_remove(group_ioctx, group_name, + snap_name); + tracepoint(librbd, group_snap_remove_exit, r); + return r; + } + + int RBD::group_snap_list(IoCtx& group_ioctx, const char *group_name, + std::vector<group_snap_info_t> *snaps, + size_t group_snap_info_size) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_list_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name); + + if (group_snap_info_size != sizeof(group_snap_info_t)) { + tracepoint(librbd, group_snap_list_exit, -ERANGE); + return -ERANGE; + } + + int r = librbd::api::Group<>::snap_list(group_ioctx, group_name, snaps); + tracepoint(librbd, group_snap_list_exit, r); + return r; + } + + int RBD::group_snap_rename(IoCtx& group_ioctx, const char *group_name, + const char *old_snap_name, + const char *new_snap_name) + { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_rename_enter, + group_ioctx.get_pool_name().c_str(), group_ioctx.get_id(), + group_name, old_snap_name, new_snap_name); + int r = librbd::api::Group<>::snap_rename(group_ioctx, group_name, + old_snap_name, new_snap_name); + tracepoint(librbd, group_snap_list_exit, r); + return r; + } + + int RBD::group_snap_rollback(IoCtx& group_ioctx, const char *group_name, + const char *snap_name) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_rollback_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Group<>::snap_rollback(group_ioctx, group_name, + snap_name, prog_ctx); + tracepoint(librbd, group_snap_rollback_exit, r); + return r; + } + + int RBD::group_snap_rollback_with_progress(IoCtx& group_ioctx, + const char *group_name, + const char *snap_name, + ProgressContext& prog_ctx) { + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_rollback_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + int r = librbd::api::Group<>::snap_rollback(group_ioctx, group_name, + snap_name, prog_ctx); + tracepoint(librbd, group_snap_rollback_exit, r); + return r; + } + + int RBD::pool_metadata_get(IoCtx& ioctx, const std::string &key, + std::string *value) + { + int r = librbd::api::PoolMetadata<>::get(ioctx, key, value); + return r; + } + + int RBD::pool_metadata_set(IoCtx& ioctx, const std::string &key, + const std::string &value) + { + int r = librbd::api::PoolMetadata<>::set(ioctx, key, value); + return r; + } + + int RBD::pool_metadata_remove(IoCtx& ioctx, const std::string &key) + { + int r = librbd::api::PoolMetadata<>::remove(ioctx, key); + return r; + } + + int RBD::pool_metadata_list(IoCtx& ioctx, const std::string &start, + uint64_t max, map<string, bufferlist> *pairs) + { + int r = librbd::api::PoolMetadata<>::list(ioctx, start, max, pairs); + return r; + } + + int RBD::config_list(IoCtx& io_ctx, std::vector<config_option_t> *options) { + return librbd::api::Config<>::list(io_ctx, options); + } + + RBD::AioCompletion::AioCompletion(void *cb_arg, callback_t complete_cb) + { + auto aio_comp = librbd::io::AioCompletion::create( + cb_arg, complete_cb, this); + aio_comp->external_callback = true; + pc = reinterpret_cast<void*>(aio_comp); + } + + bool RBD::AioCompletion::is_complete() + { + librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; + return c->is_complete(); + } + + int RBD::AioCompletion::wait_for_complete() + { + librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; + return c->wait_for_complete(); + } + + ssize_t RBD::AioCompletion::get_return_value() + { + librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; + return c->get_return_value(); + } + + void *RBD::AioCompletion::get_arg() + { + librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; + return c->get_arg(); + } + + void RBD::AioCompletion::release() + { + librbd::io::AioCompletion *c = (librbd::io::AioCompletion *)pc; + c->release(); + delete this; + } + + /* + ImageOptions + */ + + ImageOptions::ImageOptions() + { + librbd::image_options_create(&opts); + } + + ImageOptions::ImageOptions(rbd_image_options_t opts_) + { + librbd::image_options_create_ref(&opts, opts_); + } + + ImageOptions::ImageOptions(const ImageOptions &imgopts) + { + librbd::image_options_copy(&opts, imgopts); + } + + ImageOptions::~ImageOptions() + { + librbd::image_options_destroy(opts); + } + + int ImageOptions::set(int optname, const std::string& optval) + { + return librbd::image_options_set(opts, optname, optval); + } + + int ImageOptions::set(int optname, uint64_t optval) + { + return librbd::image_options_set(opts, optname, optval); + } + + int ImageOptions::get(int optname, std::string* optval) const + { + return librbd::image_options_get(opts, optname, optval); + } + + int ImageOptions::get(int optname, uint64_t* optval) const + { + return librbd::image_options_get(opts, optname, optval); + } + + int ImageOptions::is_set(int optname, bool* is_set) + { + return librbd::image_options_is_set(opts, optname, is_set); + } + + int ImageOptions::unset(int optname) + { + return librbd::image_options_unset(opts, optname); + } + + void ImageOptions::clear() + { + librbd::image_options_clear(opts); + } + + bool ImageOptions::empty() const + { + return librbd::image_options_is_empty(opts); + } + + /* + Image + */ + + Image::Image() : ctx(NULL) + { + } + + Image::~Image() + { + close(); + } + + int Image::close() + { + int r = 0; + if (ctx) { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); + + r = ictx->state->close(); + ctx = NULL; + + tracepoint(librbd, close_image_exit, r); + } + return r; + } + + int Image::aio_close(RBD::AioCompletion *c) + { + if (!ctx) { + return -EINVAL; + } + + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, aio_close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), c->pc); + + ictx->state->close(new C_AioCompletion(ictx, librbd::io::AIO_TYPE_CLOSE, + get_aio_completion(c))); + ctx = NULL; + + tracepoint(librbd, aio_close_image_exit, 0); + return 0; + } + + int Image::resize(uint64_t size) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); + librbd::NoOpProgressContext prog_ctx; + int r = ictx->operations->resize(size, true, prog_ctx); + tracepoint(librbd, resize_exit, r); + return r; + } + + int Image::resize2(uint64_t size, bool allow_shrink, librbd::ProgressContext& pctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); + int r = ictx->operations->resize(size, allow_shrink, pctx); + tracepoint(librbd, resize_exit, r); + return r; + } + + int Image::resize_with_progress(uint64_t size, librbd::ProgressContext& pctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); + int r = ictx->operations->resize(size, true, pctx); + tracepoint(librbd, resize_exit, r); + return r; + } + + int Image::stat(image_info_t& info, size_t infosize) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, stat_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::info(ictx, info, infosize); + tracepoint(librbd, stat_exit, r, &info); + return r; + } + + int Image::old_format(uint8_t *old) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_old_format_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::get_old_format(ictx, old); + tracepoint(librbd, get_old_format_exit, r, *old); + return r; + } + + int Image::size(uint64_t *size) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_size_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::get_size(ictx, size); + tracepoint(librbd, get_size_exit, r, *size); + return r; + } + + int Image::get_group(group_info_t *group_info, size_t group_info_size) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, image_get_group_enter, ictx->name.c_str()); + + if (group_info_size != sizeof(group_info_t)) { + tracepoint(librbd, image_get_group_exit, -ERANGE); + return -ERANGE; + } + + int r = librbd::api::Group<>::image_get_group(ictx, group_info); + tracepoint(librbd, image_get_group_exit, r); + return r; + } + + int Image::features(uint64_t *features) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_features_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::get_features(ictx, features); + tracepoint(librbd, get_features_exit, r, *features); + return r; + } + + int Image::update_features(uint64_t features, bool enabled) + { + ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx); + tracepoint(librbd, update_features_enter, ictx, features, enabled); + int r = ictx->operations->update_features(features, enabled); + tracepoint(librbd, update_features_exit, r); + return r; + } + + int Image::get_op_features(uint64_t *op_features) + { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Image<>::get_op_features(ictx, op_features); + } + + uint64_t Image::get_stripe_unit() const + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_stripe_unit_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + uint64_t stripe_unit = ictx->get_stripe_unit(); + tracepoint(librbd, get_stripe_unit_exit, 0, stripe_unit); + return stripe_unit; + } + + uint64_t Image::get_stripe_count() const + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_stripe_count_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + uint64_t stripe_count = ictx->get_stripe_count(); + tracepoint(librbd, get_stripe_count_exit, 0, stripe_count); + return stripe_count; + } + + int Image::get_create_timestamp(struct timespec *timestamp) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_create_timestamp_enter, ictx, ictx->name.c_str(), + ictx->read_only); + utime_t time = ictx->get_create_timestamp(); + time.to_timespec(timestamp); + tracepoint(librbd, get_create_timestamp_exit, 0, timestamp); + return 0; + } + + int Image::get_access_timestamp(struct timespec *timestamp) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_access_timestamp_enter, ictx, ictx->name.c_str(), + ictx->read_only); + { + std::shared_lock timestamp_locker{ictx->timestamp_lock}; + utime_t time = ictx->get_access_timestamp(); + time.to_timespec(timestamp); + } + tracepoint(librbd, get_access_timestamp_exit, 0, timestamp); + return 0; + } + + int Image::get_modify_timestamp(struct timespec *timestamp) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_modify_timestamp_enter, ictx, ictx->name.c_str(), + ictx->read_only); + { + std::shared_lock timestamp_locker{ictx->timestamp_lock}; + utime_t time = ictx->get_modify_timestamp(); + time.to_timespec(timestamp); + } + tracepoint(librbd, get_modify_timestamp_exit, 0, timestamp); + return 0; + } + + int Image::overlap(uint64_t *overlap) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_overlap_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::get_overlap(ictx, overlap); + tracepoint(librbd, get_overlap_exit, r, *overlap); + return r; + } + + int Image::get_name(std::string *name) + { + ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx); + *name = ictx->name; + return 0; + } + + int Image::get_id(std::string *id) + { + ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx); + if (ictx->old_format) { + return -EINVAL; + } + *id = ictx->id; + return 0; + } + + std::string Image::get_block_name_prefix() + { + ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx); + return ictx->object_prefix; + } + + int64_t Image::get_data_pool_id() + { + ImageCtx *ictx = reinterpret_cast<ImageCtx *>(ctx); + return librbd::api::Image<>::get_data_pool_id(ictx); + } + + int Image::parent_info(string *parent_pool_name, string *parent_name, + string *parent_snap_name) + { + librbd::linked_image_spec_t parent_image; + librbd::snap_spec_t parent_snap; + int r = get_parent(&parent_image, &parent_snap); + if (r >= 0) { + if (parent_pool_name != nullptr) { + *parent_pool_name = parent_image.pool_name; + } + if (parent_name != nullptr) { + *parent_name = parent_image.image_name; + } + if (parent_snap_name != nullptr) { + *parent_snap_name = parent_snap.name; + } + } + return r; + } + + int Image::parent_info2(string *parent_pool_name, string *parent_name, + string *parent_id, string *parent_snap_name) + { + librbd::linked_image_spec_t parent_image; + librbd::snap_spec_t parent_snap; + int r = get_parent(&parent_image, &parent_snap); + if (r >= 0) { + if (parent_pool_name != nullptr) { + *parent_pool_name = parent_image.pool_name; + } + if (parent_name != nullptr) { + *parent_name = parent_image.image_name; + } + if (parent_id != nullptr) { + *parent_id = parent_image.image_id; + } + if (parent_snap_name != nullptr) { + *parent_snap_name = parent_snap.name; + } + } + return r; + } + + int Image::get_parent(linked_image_spec_t *parent_image, + snap_spec_t *parent_snap) + { + auto ictx = reinterpret_cast<ImageCtx*>(ctx); + tracepoint(librbd, get_parent_info_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + + int r = librbd::api::Image<>::get_parent(ictx, parent_image, parent_snap); + + tracepoint(librbd, get_parent_info_exit, r, + parent_image->pool_name.c_str(), + parent_image->image_name.c_str(), + parent_image->image_id.c_str(), + parent_snap->name.c_str()); + return r; + } + + int Image::get_migration_source_spec(std::string* source_spec) + { + auto ictx = reinterpret_cast<ImageCtx*>(ctx); + return librbd::api::Migration<>::get_source_spec(ictx, source_spec); + } + + int Image::get_flags(uint64_t *flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, get_flags_enter, ictx); + int r = librbd::get_flags(ictx, flags); + tracepoint(librbd, get_flags_exit, ictx, r, *flags); + return r; + } + + int Image::set_image_notification(int fd, int type) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, set_image_notification_enter, ictx, fd, type); + int r = librbd::set_image_notification(ictx, fd, type); + tracepoint(librbd, set_image_notification_exit, ictx, r); + return r; + } + + int Image::is_exclusive_lock_owner(bool *is_owner) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, is_exclusive_lock_owner_enter, ictx); + int r = librbd::is_exclusive_lock_owner(ictx, is_owner); + tracepoint(librbd, is_exclusive_lock_owner_exit, ictx, r, *is_owner); + return r; + } + + int Image::lock_acquire(rbd_lock_mode_t lock_mode) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, lock_acquire_enter, ictx, lock_mode); + int r = librbd::lock_acquire(ictx, lock_mode); + tracepoint(librbd, lock_acquire_exit, ictx, r); + return r; + } + + int Image::lock_release() + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, lock_release_enter, ictx); + int r = librbd::lock_release(ictx); + tracepoint(librbd, lock_release_exit, ictx, r); + return r; + } + + int Image::lock_get_owners(rbd_lock_mode_t *lock_mode, + std::list<std::string> *lock_owners) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, lock_get_owners_enter, ictx); + int r = librbd::lock_get_owners(ictx, lock_mode, lock_owners); + tracepoint(librbd, lock_get_owners_exit, ictx, r); + return r; + } + + int Image::lock_break(rbd_lock_mode_t lock_mode, + const std::string &lock_owner) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, lock_break_enter, ictx, lock_mode, lock_owner.c_str()); + int r = librbd::lock_break(ictx, lock_mode, lock_owner); + tracepoint(librbd, lock_break_exit, ictx, r); + return r; + } + + int Image::rebuild_object_map(ProgressContext &prog_ctx) + { + ImageCtx *ictx = reinterpret_cast<ImageCtx*>(ctx); + return ictx->operations->rebuild_object_map(prog_ctx); + } + + int Image::check_object_map(ProgressContext &prog_ctx) + { + ImageCtx *ictx = reinterpret_cast<ImageCtx*>(ctx); + return ictx->operations->check_object_map(prog_ctx); + } + + int Image::copy(IoCtx& dest_io_ctx, const char *destname) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname); + ImageOptions opts; + librbd::NoOpProgressContext prog_ctx; + int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0); + tracepoint(librbd, copy_exit, r); + return r; + } + + int Image::copy2(Image& dest) + { + ImageCtx *srcctx = (ImageCtx *)ctx; + ImageCtx *destctx = (ImageCtx *)dest.ctx; + tracepoint(librbd, copy2_enter, srcctx, srcctx->name.c_str(), srcctx->snap_name.c_str(), srcctx->read_only, destctx, destctx->name.c_str(), destctx->snap_name.c_str(), destctx->read_only); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::copy(srcctx, destctx, prog_ctx, 0); + tracepoint(librbd, copy2_exit, r); + return r; + } + + int Image::copy3(IoCtx& dest_io_ctx, const char *destname, ImageOptions& opts) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0); + tracepoint(librbd, copy3_exit, r); + return r; + } + + int Image::copy4(IoCtx& dest_io_ctx, const char *destname, ImageOptions& opts, size_t sparse_size) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts, sparse_size); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, sparse_size); + tracepoint(librbd, copy4_exit, r); + return r; + } + + int Image::copy_with_progress(IoCtx& dest_io_ctx, const char *destname, + librbd::ProgressContext &pctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname); + ImageOptions opts; + int r = librbd::copy(ictx, dest_io_ctx, destname, opts, pctx, 0); + tracepoint(librbd, copy_exit, r); + return r; + } + + int Image::copy_with_progress2(Image& dest, librbd::ProgressContext &pctx) + { + ImageCtx *srcctx = (ImageCtx *)ctx; + ImageCtx *destctx = (ImageCtx *)dest.ctx; + tracepoint(librbd, copy2_enter, srcctx, srcctx->name.c_str(), srcctx->snap_name.c_str(), srcctx->read_only, destctx, destctx->name.c_str(), destctx->snap_name.c_str(), destctx->read_only); + int r = librbd::copy(srcctx, destctx, pctx, 0); + tracepoint(librbd, copy2_exit, r); + return r; + } + + int Image::copy_with_progress3(IoCtx& dest_io_ctx, const char *destname, + ImageOptions& opts, + librbd::ProgressContext &pctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts); + int r = librbd::copy(ictx, dest_io_ctx, destname, opts, pctx, 0); + tracepoint(librbd, copy3_exit, r); + return r; + } + + int Image::copy_with_progress4(IoCtx& dest_io_ctx, const char *destname, + ImageOptions& opts, + librbd::ProgressContext &pctx, + size_t sparse_size) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, opts.opts, sparse_size); + int r = librbd::copy(ictx, dest_io_ctx, destname, opts, pctx, sparse_size); + tracepoint(librbd, copy4_exit, r); + return r; + } + + int Image::deep_copy(IoCtx& dest_io_ctx, const char *destname, + ImageOptions& opts) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, deep_copy_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, + dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), + destname, opts.opts); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Image<>::deep_copy(ictx, dest_io_ctx, destname, opts, + prog_ctx); + tracepoint(librbd, deep_copy_exit, r); + return r; + } + + int Image::deep_copy_with_progress(IoCtx& dest_io_ctx, const char *destname, + ImageOptions& opts, + librbd::ProgressContext &prog_ctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, deep_copy_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, + dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), + destname, opts.opts); + int r = librbd::api::Image<>::deep_copy(ictx, dest_io_ctx, destname, opts, + prog_ctx); + tracepoint(librbd, deep_copy_exit, r); + return r; + } + + int Image::encryption_format(encryption_format_t format, + encryption_options_t opts, + size_t opts_size) + { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Image<>::encryption_format( + ictx, format, opts, opts_size, false); + } + + int Image::encryption_load(encryption_format_t format, + encryption_options_t opts, + size_t opts_size) + { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Image<>::encryption_load( + ictx, format, opts, opts_size, false); + } + + int Image::flatten() + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); + librbd::NoOpProgressContext prog_ctx; + int r = ictx->operations->flatten(prog_ctx); + tracepoint(librbd, flatten_exit, r); + return r; + } + + int Image::flatten_with_progress(librbd::ProgressContext& prog_ctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); + int r = ictx->operations->flatten(prog_ctx); + tracepoint(librbd, flatten_exit, r); + return r; + } + + int Image::sparsify(size_t sparse_size) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, sparsify_enter, ictx, ictx->name.c_str(), sparse_size, + ictx->id.c_str()); + librbd::NoOpProgressContext prog_ctx; + int r = ictx->operations->sparsify(sparse_size, prog_ctx); + tracepoint(librbd, sparsify_exit, r); + return r; + } + + int Image::sparsify_with_progress(size_t sparse_size, + librbd::ProgressContext& prog_ctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, sparsify_enter, ictx, ictx->name.c_str(), sparse_size, + ictx->id.c_str()); + int r = ictx->operations->sparsify(sparse_size, prog_ctx); + tracepoint(librbd, sparsify_exit, r); + return r; + } + + int Image::list_children(set<pair<string, string> > *children) + { + std::vector<linked_image_spec_t> images; + int r = list_children3(&images); + if (r < 0) { + return r; + } + + for (auto& image : images) { + if (!image.trash) { + children->insert({image.pool_name, image.image_name}); + } + } + return 0; + } + + int Image::list_children2(vector<librbd::child_info_t> *children) + { + std::vector<linked_image_spec_t> images; + int r = list_children3(&images); + if (r < 0) { + return r; + } + + for (auto& image : images) { + children->push_back({ + .pool_name = image.pool_name, + .image_name = image.image_name, + .image_id = image.image_id, + .trash = image.trash}); + } + + return 0; + } + + int Image::list_children3(std::vector<linked_image_spec_t> *images) + { + auto ictx = reinterpret_cast<ImageCtx*>(ctx); + tracepoint(librbd, list_children_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + + int r = librbd::api::Image<>::list_children(ictx, images); +#ifdef WITH_LTTNG + if (r >= 0) { + for (auto& it : *images) { + tracepoint(librbd, list_children_entry, it.pool_name.c_str(), + it.image_name.c_str()); + } + } +#endif + tracepoint(librbd, list_children_exit, r); + return r; + } + + int Image::list_descendants(std::vector<linked_image_spec_t> *images) + { + auto ictx = reinterpret_cast<ImageCtx*>(ctx); + + images->clear(); + int r = librbd::api::Image<>::list_descendants(ictx, {}, images); + return r; + } + + int Image::list_lockers(std::list<librbd::locker_t> *lockers, + bool *exclusive, string *tag) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, list_lockers_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::list_lockers(ictx, lockers, exclusive, tag); + if (r >= 0) { + for (std::list<librbd::locker_t>::const_iterator it = lockers->begin(); + it != lockers->end(); ++it) { + tracepoint(librbd, list_lockers_entry, it->client.c_str(), it->cookie.c_str(), it->address.c_str()); + } + } + tracepoint(librbd, list_lockers_exit, r); + return r; + } + + int Image::lock_exclusive(const string& cookie) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, lock_exclusive_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie.c_str()); + int r = librbd::lock(ictx, true, cookie, ""); + tracepoint(librbd, lock_exclusive_exit, r); + return r; + } + + int Image::lock_shared(const string& cookie, const std::string& tag) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, lock_shared_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie.c_str(), tag.c_str()); + int r = librbd::lock(ictx, false, cookie, tag); + tracepoint(librbd, lock_shared_exit, r); + return r; + } + + int Image::unlock(const string& cookie) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, unlock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie.c_str()); + int r = librbd::unlock(ictx, cookie); + tracepoint(librbd, unlock_exit, r); + return r; + } + + int Image::break_lock(const string& client, const string& cookie) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, break_lock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, client.c_str(), cookie.c_str()); + int r = librbd::break_lock(ictx, client, cookie); + tracepoint(librbd, break_lock_exit, r); + return r; + } + + int Image::snap_create(const char *snap_name) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_create_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + auto flags = librbd::util::get_default_snap_create_flags(ictx); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Snapshot<>::create(ictx, snap_name, flags, prog_ctx); + tracepoint(librbd, snap_create_exit, r); + return r; + } + + int Image::snap_create2(const char *snap_name, uint32_t flags, + ProgressContext& prog_ctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_create_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = librbd::api::Snapshot<>::create(ictx, snap_name, flags, prog_ctx); + tracepoint(librbd, snap_create_exit, r); + return r; + } + + int Image::snap_remove(const char *snap_name) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_remove_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Snapshot<>::remove(ictx, snap_name, 0, prog_ctx); + tracepoint(librbd, snap_remove_exit, r); + return r; + } + + int Image::snap_remove2(const char *snap_name, uint32_t flags, ProgressContext& pctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_remove2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name, flags); + int r = librbd::api::Snapshot<>::remove(ictx, snap_name, flags, pctx); + tracepoint(librbd, snap_remove_exit, r); + return r; + } + + int Image::snap_remove_by_id(uint64_t snap_id) + { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Snapshot<>::remove(ictx, snap_id); + } + + int Image::snap_rollback(const char *snap_name) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + librbd::NoOpProgressContext prog_ctx; + int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx); + tracepoint(librbd, snap_rollback_exit, r); + return r; + } + + int Image::snap_rename(const char *srcname, const char *dstname) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_rename_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, srcname, dstname); + int r = ictx->operations->snap_rename(srcname, dstname); + tracepoint(librbd, snap_rename_exit, r); + return r; + } + + int Image::snap_rollback_with_progress(const char *snap_name, + ProgressContext& prog_ctx) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx); + tracepoint(librbd, snap_rollback_exit, r); + return r; + } + + int Image::snap_protect(const char *snap_name) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_protect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), snap_name); + tracepoint(librbd, snap_protect_exit, r); + return r; + } + + int Image::snap_unprotect(const char *snap_name) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_unprotect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = ictx->operations->snap_unprotect(cls::rbd::UserSnapshotNamespace(), snap_name); + tracepoint(librbd, snap_unprotect_exit, r); + return r; + } + + int Image::snap_is_protected(const char *snap_name, bool *is_protected) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_is_protected_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = librbd::api::Snapshot<>::is_protected(ictx, snap_name, is_protected); + tracepoint(librbd, snap_is_protected_exit, r, *is_protected ? 1 : 0); + return r; + } + + int Image::snap_list(vector<librbd::snap_info_t>& snaps) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_list_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, &snaps); + int r = librbd::api::Snapshot<>::list(ictx, snaps); + if (r >= 0) { + for (int i = 0, n = snaps.size(); i < n; i++) { + tracepoint(librbd, snap_list_entry, snaps[i].id, snaps[i].size, snaps[i].name.c_str()); + } + } + tracepoint(librbd, snap_list_exit, r, snaps.size()); + if (r >= 0) { + // A little ugly, but the C++ API doesn't need a Image::snap_list_end, + // and we want the tracepoints to mirror the C API + tracepoint(librbd, snap_list_end_enter, &snaps); + tracepoint(librbd, snap_list_end_exit); + } + return r; + } + + bool Image::snap_exists(const char *snap_name) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_exists_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, snap_name); + bool exists; + int r = librbd::api::Snapshot<>::exists(ictx, cls::rbd::UserSnapshotNamespace(), snap_name, &exists); + tracepoint(librbd, snap_exists_exit, r, exists); + if (r < 0) { + // lie to caller since we don't know the real answer yet. + return false; + } + return exists; + } + + // A safer verion of snap_exists. + int Image::snap_exists2(const char *snap_name, bool *exists) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_exists_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = librbd::api::Snapshot<>::exists(ictx, cls::rbd::UserSnapshotNamespace(), snap_name, exists); + tracepoint(librbd, snap_exists_exit, r, *exists); + return r; + } + + int Image::snap_get_timestamp(uint64_t snap_id, struct timespec *timestamp) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_get_timestamp_enter, ictx, ictx->name.c_str()); + int r = librbd::api::Snapshot<>::get_timestamp(ictx, snap_id, timestamp); + tracepoint(librbd, snap_get_timestamp_exit, r); + return r; + } + + int Image::snap_get_limit(uint64_t *limit) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_get_limit_enter, ictx, ictx->name.c_str()); + int r = librbd::api::Snapshot<>::get_limit(ictx, limit); + tracepoint(librbd, snap_get_limit_exit, r, *limit); + return r; + } + + int Image::snap_get_namespace_type(uint64_t snap_id, + snap_namespace_type_t *namespace_type) { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_get_namespace_type_enter, ictx, ictx->name.c_str()); + int r = librbd::api::Snapshot<>::get_namespace_type(ictx, snap_id, namespace_type); + tracepoint(librbd, snap_get_namespace_type_exit, r); + return r; + } + + int Image::snap_get_group_namespace(uint64_t snap_id, + snap_group_namespace_t *group_snap, + size_t group_snap_size) { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_get_group_namespace_enter, ictx, + ictx->name.c_str()); + + if (group_snap_size != sizeof(snap_group_namespace_t)) { + tracepoint(librbd, snap_get_group_namespace_exit, -ERANGE); + return -ERANGE; + } + + int r = librbd::api::Snapshot<>::get_group_namespace(ictx, snap_id, + group_snap); + tracepoint(librbd, snap_get_group_namespace_exit, r); + return r; + } + + int Image::snap_get_trash_namespace(uint64_t snap_id, + std::string* original_name) { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Snapshot<>::get_trash_namespace(ictx, snap_id, + original_name); + } + + int Image::snap_get_mirror_namespace( + uint64_t snap_id, snap_mirror_namespace_t *mirror_snap, + size_t mirror_snap_size) { + ImageCtx *ictx = (ImageCtx *)ctx; + + if (mirror_snap_size != sizeof(snap_mirror_namespace_t)) { + return -ERANGE; + } + + int r = librbd::api::Snapshot<>::get_mirror_namespace( + ictx, snap_id, mirror_snap); + return r; + } + + int Image::snap_set_limit(uint64_t limit) + { + ImageCtx *ictx = (ImageCtx *)ctx; + + tracepoint(librbd, snap_set_limit_enter, ictx, ictx->name.c_str(), limit); + int r = ictx->operations->snap_set_limit(limit); + tracepoint(librbd, snap_set_limit_exit, r); + return r; + } + + int Image::snap_set(const char *snap_name) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, snap_set_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = librbd::api::Image<>::snap_set( + ictx, cls::rbd::UserSnapshotNamespace(), snap_name); + tracepoint(librbd, snap_set_exit, r); + return r; + } + + int Image::snap_set_by_id(uint64_t snap_id) + { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Image<>::snap_set(ictx, snap_id); + } + + int Image::snap_get_name(uint64_t snap_id, std::string *snap_name) + { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Snapshot<>::get_name(ictx, snap_id, snap_name); + } + + int Image::snap_get_id(const std::string snap_name, uint64_t *snap_id) + { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Snapshot<>::get_id(ictx, snap_name, snap_id); + } + + ssize_t Image::read(uint64_t ofs, size_t len, bufferlist& bl) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); + bufferptr ptr(len); + bl.push_back(std::move(ptr)); + + int r = api::Io<>::read(*ictx, ofs, len, io::ReadResult{&bl}, 0); + tracepoint(librbd, read_exit, r); + return r; + } + + ssize_t Image::read2(uint64_t ofs, size_t len, bufferlist& bl, int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, read2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, ofs, len, op_flags); + bufferptr ptr(len); + bl.push_back(std::move(ptr)); + + int r = api::Io<>::read(*ictx, ofs, len, io::ReadResult{&bl}, op_flags); + tracepoint(librbd, read_exit, r); + return r; + } + + int64_t Image::read_iterate(uint64_t ofs, size_t len, + int (*cb)(uint64_t, size_t, const char *, void *), + void *arg) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, read_iterate_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); + + int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg); + tracepoint(librbd, read_iterate_exit, r); + return r; + } + + int Image::read_iterate2(uint64_t ofs, uint64_t len, + int (*cb)(uint64_t, size_t, const char *, void *), + void *arg) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, read_iterate2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); + + int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg); + if (r > 0) + r = 0; + tracepoint(librbd, read_iterate2_exit, r); + return (int)r; + } + + int Image::diff_iterate(const char *fromsnapname, + uint64_t ofs, uint64_t len, + int (*cb)(uint64_t, size_t, int, void *), + void *arg) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len, + true, false); + int r = librbd::api::DiffIterate<>::diff_iterate(ictx, + cls::rbd::UserSnapshotNamespace(), + fromsnapname, ofs, + len, true, false, cb, arg); + tracepoint(librbd, diff_iterate_exit, r); + return r; + } + + int Image::diff_iterate2(const char *fromsnapname, uint64_t ofs, uint64_t len, + bool include_parent, bool whole_object, + int (*cb)(uint64_t, size_t, int, void *), void *arg) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len, + include_parent, whole_object); + int r = librbd::api::DiffIterate<>::diff_iterate(ictx, + cls::rbd::UserSnapshotNamespace(), + fromsnapname, ofs, + len, include_parent, + whole_object, cb, arg); + tracepoint(librbd, diff_iterate_exit, r); + return r; + } + + ssize_t Image::write(uint64_t ofs, size_t len, bufferlist& bl) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len, bl.length() < len ? NULL : bl.c_str()); + if (bl.length() < len) { + tracepoint(librbd, write_exit, -EINVAL); + return -EINVAL; + } + + int r = api::Io<>::write(*ictx, ofs, len, bufferlist{bl}, 0); + tracepoint(librbd, write_exit, r); + return r; + } + + ssize_t Image::write2(uint64_t ofs, size_t len, bufferlist& bl, int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, write2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, + ofs, len, bl.length() < len ? NULL : bl.c_str(), op_flags); + if (bl.length() < len) { + tracepoint(librbd, write_exit, -EINVAL); + return -EINVAL; + } + + int r = api::Io<>::write(*ictx, ofs, len, bufferlist{bl}, op_flags); + tracepoint(librbd, write_exit, r); + return r; + } + + int Image::discard(uint64_t ofs, uint64_t len) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); + if (len > static_cast<uint64_t>(std::numeric_limits<int32_t>::max())) { + tracepoint(librbd, discard_exit, -EINVAL); + return -EINVAL; + } + int r = api::Io<>::discard( + *ictx, ofs, len, ictx->discard_granularity_bytes); + tracepoint(librbd, discard_exit, r); + return r; + } + + ssize_t Image::writesame(uint64_t ofs, size_t len, bufferlist& bl, int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, ofs, len, bl.length() == 0 ? NULL : bl.c_str(), bl.length(), + op_flags); + if (bl.length() == 0 || len % bl.length() || + len > static_cast<size_t>(std::numeric_limits<int>::max())) { + tracepoint(librbd, writesame_exit, -EINVAL); + return -EINVAL; + } + + bool discard_zero = ictx->config.get_val<bool>("rbd_discard_on_zeroed_write_same"); + if (discard_zero && bl.is_zero()) { + int r = api::Io<>::write_zeroes(*ictx, ofs, len, 0U, op_flags); + tracepoint(librbd, writesame_exit, r); + return r; + } + + int r = api::Io<>::write_same(*ictx, ofs, len, bufferlist{bl}, op_flags); + tracepoint(librbd, writesame_exit, r); + return r; + } + + ssize_t Image::write_zeroes(uint64_t ofs, size_t len, int zero_flags, + int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + return api::Io<>::write_zeroes(*ictx, ofs, len, zero_flags, op_flags); + } + + ssize_t Image::compare_and_write(uint64_t ofs, size_t len, + ceph::bufferlist &cmp_bl, ceph::bufferlist& bl, + uint64_t *mismatch_off, int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, compare_and_write_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), + ictx->read_only, ofs, len, cmp_bl.length() < len ? NULL : cmp_bl.c_str(), + bl.length() < len ? NULL : bl.c_str(), op_flags); + + if (bl.length() < len) { + tracepoint(librbd, write_exit, -EINVAL); + return -EINVAL; + } + + int r = api::Io<>::compare_and_write( + *ictx, ofs, len, bufferlist{cmp_bl}, bufferlist{bl}, mismatch_off, + op_flags); + + tracepoint(librbd, compare_and_write_exit, r); + + return r; + } + + int Image::aio_write(uint64_t off, size_t len, bufferlist& bl, + RBD::AioCompletion *c) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, bl.length() < len ? NULL : bl.c_str(), c->pc); + if (bl.length() < len) { + tracepoint(librbd, aio_write_exit, -EINVAL); + return -EINVAL; + } + api::Io<>::aio_write(*ictx, get_aio_completion(c), off, len, bufferlist{bl}, + 0, true); + + tracepoint(librbd, aio_write_exit, 0); + return 0; + } + + int Image::aio_write2(uint64_t off, size_t len, bufferlist& bl, + RBD::AioCompletion *c, int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, aio_write2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, off, len, bl.length() < len ? NULL : bl.c_str(), c->pc, op_flags); + if (bl.length() < len) { + tracepoint(librbd, aio_write_exit, -EINVAL); + return -EINVAL; + } + api::Io<>::aio_write(*ictx, get_aio_completion(c), off, len, bufferlist{bl}, + op_flags, true); + + tracepoint(librbd, aio_write_exit, 0); + return 0; + } + + int Image::aio_read(uint64_t off, size_t len, bufferlist& bl, + RBD::AioCompletion *c) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, bl.c_str(), c->pc); + ldout(ictx->cct, 10) << "Image::aio_read() buf=" << (void *)bl.c_str() << "~" + << (void *)(bl.c_str() + len - 1) << dendl; + + api::Io<>::aio_read(*ictx, get_aio_completion(c), off, len, + io::ReadResult{&bl}, 0, true); + tracepoint(librbd, aio_read_exit, 0); + return 0; + } + + int Image::aio_read2(uint64_t off, size_t len, bufferlist& bl, + RBD::AioCompletion *c, int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, aio_read2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, off, len, bl.c_str(), c->pc, op_flags); + ldout(ictx->cct, 10) << "Image::aio_read() buf=" << (void *)bl.c_str() << "~" + << (void *)(bl.c_str() + len - 1) << dendl; + + api::Io<>::aio_read(*ictx, get_aio_completion(c), off, len, + io::ReadResult{&bl}, op_flags, true); + tracepoint(librbd, aio_read_exit, 0); + return 0; + } + + int Image::flush() + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = api::Io<>::flush(*ictx); + tracepoint(librbd, flush_exit, r); + return r; + } + + int Image::aio_flush(RBD::AioCompletion *c) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, aio_flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, c->pc); + api::Io<>::aio_flush(*ictx, get_aio_completion(c), true); + tracepoint(librbd, aio_flush_exit, 0); + return 0; + } + + int Image::aio_discard(uint64_t off, uint64_t len, RBD::AioCompletion *c) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, aio_discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, c->pc); + api::Io<>::aio_discard( + *ictx, get_aio_completion(c), off, len, ictx->discard_granularity_bytes, + true); + tracepoint(librbd, aio_discard_exit, 0); + return 0; + } + + int Image::aio_writesame(uint64_t off, size_t len, bufferlist& bl, + RBD::AioCompletion *c, int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, aio_writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, off, len, bl.length() <= len ? NULL : bl.c_str(), bl.length(), + c->pc, op_flags); + if (bl.length() == 0 || len % bl.length()) { + tracepoint(librbd, aio_writesame_exit, -EINVAL); + return -EINVAL; + } + + bool discard_zero = ictx->config.get_val<bool>("rbd_discard_on_zeroed_write_same"); + if (discard_zero && bl.is_zero()) { + api::Io<>::aio_write_zeroes(*ictx, get_aio_completion(c), off, len, 0U, + op_flags, true); + tracepoint(librbd, aio_writesame_exit, 0); + return 0; + } + + api::Io<>::aio_write_same(*ictx, get_aio_completion(c), off, len, + bufferlist{bl}, op_flags, true); + tracepoint(librbd, aio_writesame_exit, 0); + return 0; + } + + int Image::aio_write_zeroes(uint64_t off, size_t len, RBD::AioCompletion *c, + int zero_flags, int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + api::Io<>::aio_write_zeroes(*ictx, get_aio_completion(c), off, len, + zero_flags, op_flags, true); + return 0; + } + + int Image::aio_compare_and_write(uint64_t off, size_t len, + ceph::bufferlist& cmp_bl, ceph::bufferlist& bl, + RBD::AioCompletion *c, uint64_t *mismatch_off, + int op_flags) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, aio_compare_and_write_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), + ictx->read_only, off, len, cmp_bl.length() < len ? NULL : cmp_bl.c_str(), + bl.length() < len ? NULL : bl.c_str(), c->pc, op_flags); + + if (bl.length() < len) { + tracepoint(librbd, compare_and_write_exit, -EINVAL); + return -EINVAL; + } + + api::Io<>::aio_compare_and_write(*ictx, get_aio_completion(c), off, len, + bufferlist{cmp_bl}, bufferlist{bl}, + mismatch_off, op_flags, false); + + tracepoint(librbd, aio_compare_and_write_exit, 0); + + return 0; + } + + int Image::invalidate_cache() + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, invalidate_cache_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::invalidate_cache(ictx); + tracepoint(librbd, invalidate_cache_exit, r); + return r; + } + + int Image::poll_io_events(RBD::AioCompletion **comps, int numcomp) + { + io::AioCompletion *cs[numcomp]; + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, poll_io_events_enter, ictx, numcomp); + int r = librbd::poll_io_events(ictx, cs, numcomp); + tracepoint(librbd, poll_io_events_exit, r); + if (r > 0) { + for (int i = 0; i < r; ++i) + comps[i] = (RBD::AioCompletion *)cs[i]->rbd_comp; + } + return r; + } + + int Image::metadata_get(const std::string &key, std::string *value) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, metadata_get_enter, ictx, key.c_str()); + int r = librbd::metadata_get(ictx, key, value); + if (r < 0) { + tracepoint(librbd, metadata_get_exit, r, key.c_str(), NULL); + } else { + tracepoint(librbd, metadata_get_exit, r, key.c_str(), value->c_str()); + } + return r; + } + + int Image::metadata_set(const std::string &key, const std::string &value) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, metadata_set_enter, ictx, key.c_str(), value.c_str()); + int r = ictx->operations->metadata_set(key, value); + tracepoint(librbd, metadata_set_exit, r); + return r; + } + + int Image::metadata_remove(const std::string &key) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, metadata_remove_enter, ictx, key.c_str()); + int r = ictx->operations->metadata_remove(key); + tracepoint(librbd, metadata_remove_exit, r); + return r; + } + + int Image::metadata_list(const std::string &start, uint64_t max, map<string, bufferlist> *pairs) + { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, metadata_list_enter, ictx); + int r = librbd::metadata_list(ictx, start, max, pairs); + if (r >= 0) { + for (map<string, bufferlist>::iterator it = pairs->begin(); + it != pairs->end(); ++it) { + tracepoint(librbd, metadata_list_entry, it->first.c_str(), it->second.c_str()); + } + } + tracepoint(librbd, metadata_list_exit, r); + return r; + } + + int Image::mirror_image_enable() { + return mirror_image_enable2(RBD_MIRROR_IMAGE_MODE_JOURNAL); + } + + int Image::mirror_image_enable2(mirror_image_mode_t mode) { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Mirror<>::image_enable(ictx, mode, false); + } + + int Image::mirror_image_disable(bool force) { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Mirror<>::image_disable(ictx, force); + } + + int Image::mirror_image_promote(bool force) { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Mirror<>::image_promote(ictx, force); + } + + int Image::mirror_image_demote() { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Mirror<>::image_demote(ictx); + } + + int Image::mirror_image_resync() + { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Mirror<>::image_resync(ictx); + } + + int Image::mirror_image_create_snapshot(uint64_t *snap_id) + { + ImageCtx *ictx = (ImageCtx *)ctx; + auto flags = librbd::util::get_default_snap_create_flags(ictx); + return librbd::api::Mirror<>::image_snapshot_create(ictx, flags, snap_id); + } + + int Image::mirror_image_create_snapshot2(uint32_t flags, uint64_t *snap_id) + { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Mirror<>::image_snapshot_create(ictx, flags, snap_id); + } + + int Image::mirror_image_get_info(mirror_image_info_t *mirror_image_info, + size_t info_size) { + ImageCtx *ictx = (ImageCtx *)ctx; + + if (sizeof(mirror_image_info_t) != info_size) { + return -ERANGE; + } + + return librbd::api::Mirror<>::image_get_info(ictx, mirror_image_info); + } + + int Image::mirror_image_get_mode(mirror_image_mode_t *mode) { + ImageCtx *ictx = (ImageCtx *)ctx; + + return librbd::api::Mirror<>::image_get_mode(ictx, mode); + } + + int Image::mirror_image_get_global_status( + mirror_image_global_status_t *mirror_image_global_status, + size_t status_size) { + ImageCtx *ictx = (ImageCtx *)ctx; + + if (sizeof(mirror_image_global_status_t) != status_size) { + return -ERANGE; + } + + return librbd::api::Mirror<>::image_get_global_status( + ictx, mirror_image_global_status); + } + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + + int Image::mirror_image_get_status(mirror_image_status_t *mirror_image_status, + size_t status_size) { + ImageCtx *ictx = (ImageCtx *)ctx; + + if (sizeof(mirror_image_status_t) != status_size) { + return -ERANGE; + } + + mirror_image_global_status_t mirror_image_global_status; + int r = librbd::api::Mirror<>::image_get_global_status( + ictx, &mirror_image_global_status); + if (r < 0) { + return r; + } + + librbd::mirror_image_site_status_t local_status; + r = get_local_mirror_image_site_status(mirror_image_global_status, + &local_status); + if (r < 0) { + return r; + } + + *mirror_image_status = mirror_image_status_t{ + mirror_image_global_status.name, mirror_image_global_status.info, + local_status.state, local_status.description, local_status.last_update, + local_status.up}; + return 0; + } + +#pragma GCC diagnostic pop + + int Image::mirror_image_get_instance_id(std::string *instance_id) { + ImageCtx *ictx = (ImageCtx *)ctx; + + return librbd::api::Mirror<>::image_get_instance_id(ictx, instance_id); + } + + int Image::aio_mirror_image_promote(bool force, RBD::AioCompletion *c) { + ImageCtx *ictx = (ImageCtx *)ctx; + librbd::api::Mirror<>::image_promote( + ictx, force, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(c))); + return 0; + } + + int Image::aio_mirror_image_demote(RBD::AioCompletion *c) { + ImageCtx *ictx = (ImageCtx *)ctx; + librbd::api::Mirror<>::image_demote( + ictx, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(c))); + return 0; + } + + int Image::aio_mirror_image_get_info(mirror_image_info_t *mirror_image_info, + size_t info_size, + RBD::AioCompletion *c) { + ImageCtx *ictx = (ImageCtx *)ctx; + + if (sizeof(mirror_image_info_t) != info_size) { + return -ERANGE; + } + + librbd::api::Mirror<>::image_get_info( + ictx, mirror_image_info, + new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(c))); + return 0; + } + + int Image::aio_mirror_image_get_mode(mirror_image_mode_t *mode, + RBD::AioCompletion *c) { + ImageCtx *ictx = (ImageCtx *)ctx; + + librbd::api::Mirror<>::image_get_mode( + ictx, mode, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(c))); + return 0; + } + + int Image::aio_mirror_image_get_global_status( + mirror_image_global_status_t *status, size_t status_size, + RBD::AioCompletion *c) { + ImageCtx *ictx = (ImageCtx *)ctx; + + if (sizeof(mirror_image_global_status_t) != status_size) { + return -ERANGE; + } + + librbd::api::Mirror<>::image_get_global_status( + ictx, status, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(c))); + return 0; + } + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + + int Image::aio_mirror_image_get_status(mirror_image_status_t *status, + size_t status_size, + RBD::AioCompletion *c) { + ImageCtx *ictx = (ImageCtx *)ctx; + + if (sizeof(mirror_image_status_t) != status_size) { + return -ERANGE; + } + + auto ctx = new C_MirrorImageGetStatus( + status, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(c))); + librbd::api::Mirror<>::image_get_global_status( + ictx, &ctx->cpp_mirror_image_global_status, ctx); + return 0; + } + +#pragma GCC diagnostic pop + + int Image::aio_mirror_image_create_snapshot(uint32_t flags, uint64_t *snap_id, + RBD::AioCompletion *c) { + ImageCtx *ictx = (ImageCtx *)ctx; + + librbd::api::Mirror<>::image_snapshot_create( + ictx, flags, snap_id, new C_AioCompletion(ictx, + librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(c))); + return 0; + } + + int Image::update_watch(UpdateWatchCtx *wctx, uint64_t *handle) { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, update_watch_enter, ictx, wctx); + int r = ictx->state->register_update_watcher(wctx, handle); + tracepoint(librbd, update_watch_exit, r, *handle); + return r; + } + + int Image::update_unwatch(uint64_t handle) { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, update_unwatch_enter, ictx, handle); + int r = ictx->state->unregister_update_watcher(handle); + tracepoint(librbd, update_unwatch_exit, r); + return r; + } + + int Image::list_watchers(std::list<librbd::image_watcher_t> &watchers) { + ImageCtx *ictx = (ImageCtx *)ctx; + tracepoint(librbd, list_watchers_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::list_watchers(ictx, watchers); +#ifdef WITH_LTTNG + if (r >= 0) { + for (auto &watcher : watchers) { + tracepoint(librbd, list_watchers_entry, watcher.addr.c_str(), watcher.id, watcher.cookie); + } + } +#endif + tracepoint(librbd, list_watchers_exit, r, watchers.size()); + return r; + } + + int Image::config_list(std::vector<config_option_t> *options) { + ImageCtx *ictx = (ImageCtx *)ctx; + return librbd::api::Config<>::list(ictx, options); + } + + int Image::quiesce_watch(QuiesceWatchCtx *wctx, uint64_t *handle) { + ImageCtx *ictx = (ImageCtx *)ctx; + int r = ictx->state->register_quiesce_watcher(wctx, handle); + return r; + } + + int Image::quiesce_unwatch(uint64_t handle) { + ImageCtx *ictx = (ImageCtx *)ctx; + int r = ictx->state->unregister_quiesce_watcher(handle); + return r; + } + + void Image::quiesce_complete(uint64_t handle, int r) { + ImageCtx *ictx = (ImageCtx *)ctx; + ictx->state->quiesce_complete(handle, r); + } + +} // namespace librbd + +extern "C" void rbd_version(int *major, int *minor, int *extra) +{ + if (major) + *major = LIBRBD_VER_MAJOR; + if (minor) + *minor = LIBRBD_VER_MINOR; + if (extra) + *extra = LIBRBD_VER_EXTRA; +} + +extern "C" void rbd_image_options_create(rbd_image_options_t* opts) +{ + librbd::image_options_create(opts); +} + +extern "C" void rbd_image_options_destroy(rbd_image_options_t opts) +{ + librbd::image_options_destroy(opts); +} + +extern "C" int rbd_image_options_set_string(rbd_image_options_t opts, int optname, + const char* optval) +{ + return librbd::image_options_set(opts, optname, optval); +} + +extern "C" int rbd_image_options_set_uint64(rbd_image_options_t opts, int optname, + uint64_t optval) +{ + return librbd::image_options_set(opts, optname, optval); +} + +extern "C" int rbd_image_options_get_string(rbd_image_options_t opts, int optname, + char* optval, size_t maxlen) +{ + std::string optval_; + + int r = librbd::image_options_get(opts, optname, &optval_); + + if (r < 0) { + return r; + } + + if (optval_.size() >= maxlen) { + return -E2BIG; + } + + strncpy(optval, optval_.c_str(), maxlen); + + return 0; +} + +extern "C" int rbd_image_options_get_uint64(rbd_image_options_t opts, int optname, + uint64_t* optval) +{ + return librbd::image_options_get(opts, optname, optval); +} + +extern "C" int rbd_image_options_is_set(rbd_image_options_t opts, int optname, + bool* is_set) +{ + return librbd::image_options_is_set(opts, optname, is_set); +} + +extern "C" int rbd_image_options_unset(rbd_image_options_t opts, int optname) +{ + return librbd::image_options_unset(opts, optname); +} + +extern "C" void rbd_image_options_clear(rbd_image_options_t opts) +{ + librbd::image_options_clear(opts); +} + +extern "C" int rbd_image_options_is_empty(rbd_image_options_t opts) +{ + return librbd::image_options_is_empty(opts); +} + +/* pool mirroring */ +extern "C" int rbd_mirror_site_name_get(rados_t cluster, char *name, + size_t *max_len) { + librados::Rados rados; + librados::Rados::from_rados_t(cluster, rados); + + std::string site_name; + int r = librbd::api::Mirror<>::site_name_get(rados, &site_name); + if (r < 0) { + return r; + } + + auto total_len = site_name.size() + 1; + if (*max_len < total_len) { + *max_len = total_len; + return -ERANGE; + } + *max_len = total_len; + + strcpy(name, site_name.c_str()); + return 0; +} + +extern "C" int rbd_mirror_site_name_set(rados_t cluster, const char *name) { + librados::Rados rados; + librados::Rados::from_rados_t(cluster, rados); + return librbd::api::Mirror<>::site_name_set(rados, name); +} + +extern "C" int rbd_mirror_mode_get(rados_ioctx_t p, + rbd_mirror_mode_t *mirror_mode) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + return librbd::api::Mirror<>::mode_get(io_ctx, mirror_mode); +} + +extern "C" int rbd_mirror_mode_set(rados_ioctx_t p, + rbd_mirror_mode_t mirror_mode) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + return librbd::api::Mirror<>::mode_set(io_ctx, mirror_mode); +} + +extern "C" int rbd_mirror_uuid_get(rados_ioctx_t p, + char *mirror_uuid, size_t *max_len) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + std::string mirror_uuid_str; + int r = librbd::api::Mirror<>::uuid_get(io_ctx, &mirror_uuid_str); + if (r < 0) { + return r; + } + + auto total_len = mirror_uuid_str.size() + 1; + if (*max_len < total_len) { + *max_len = total_len; + return -ERANGE; + } + *max_len = total_len; + + strcpy(mirror_uuid, mirror_uuid_str.c_str()); + return 0; +} + +extern "C" int rbd_mirror_peer_bootstrap_create(rados_ioctx_t p, char *token, + size_t *max_len) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + std::string token_str; + int r = librbd::api::Mirror<>::peer_bootstrap_create(io_ctx, &token_str); + if (r < 0) { + return r; + } + + auto total_len = token_str.size() + 1; + if (*max_len < total_len) { + *max_len = total_len; + return -ERANGE; + } + *max_len = total_len; + + strcpy(token, token_str.c_str()); + return 0; +} + +extern "C" int rbd_mirror_peer_bootstrap_import( + rados_ioctx_t p, rbd_mirror_peer_direction_t direction, + const char *token) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + return librbd::api::Mirror<>::peer_bootstrap_import(io_ctx, direction, token); +} + +extern "C" int rbd_mirror_peer_site_add(rados_ioctx_t p, char *uuid, + size_t uuid_max_length, + rbd_mirror_peer_direction_t direction, + const char *site_name, + const char *client_name) { + static const std::size_t UUID_LENGTH = 36; + + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + if (uuid_max_length < UUID_LENGTH + 1) { + return -E2BIG; + } + + std::string uuid_str; + int r = librbd::api::Mirror<>::peer_site_add(io_ctx, &uuid_str, direction, + site_name, client_name); + if (r >= 0) { + strncpy(uuid, uuid_str.c_str(), uuid_max_length); + uuid[uuid_max_length - 1] = '\0'; + } + return r; +} + +extern "C" int rbd_mirror_peer_site_remove(rados_ioctx_t p, const char *uuid) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + int r = librbd::api::Mirror<>::peer_site_remove(io_ctx, uuid); + return r; +} + +extern "C" int rbd_mirror_peer_site_list( + rados_ioctx_t p, rbd_mirror_peer_site_t *peers, int *max_peers) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + std::vector<librbd::mirror_peer_site_t> peer_vector; + int r = librbd::api::Mirror<>::peer_site_list(io_ctx, &peer_vector); + if (r < 0) { + return r; + } + + if (*max_peers < static_cast<int>(peer_vector.size())) { + *max_peers = static_cast<int>(peer_vector.size()); + return -ERANGE; + } + + for (int i = 0; i < static_cast<int>(peer_vector.size()); ++i) { + peers[i].uuid = strdup(peer_vector[i].uuid.c_str()); + peers[i].direction = peer_vector[i].direction; + peers[i].site_name = strdup(peer_vector[i].site_name.c_str()); + peers[i].mirror_uuid = strdup(peer_vector[i].mirror_uuid.c_str()); + peers[i].client_name = strdup(peer_vector[i].client_name.c_str()); + } + *max_peers = static_cast<int>(peer_vector.size()); + return 0; +} + +extern "C" void rbd_mirror_peer_site_list_cleanup(rbd_mirror_peer_site_t *peers, + int max_peers) { + for (int i = 0; i < max_peers; ++i) { + free(peers[i].uuid); + free(peers[i].site_name); + free(peers[i].mirror_uuid); + free(peers[i].client_name); + } +} + +extern "C" int rbd_mirror_peer_site_set_client_name( + rados_ioctx_t p, const char *uuid, const char *client_name) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + return librbd::api::Mirror<>::peer_site_set_client(io_ctx, uuid, client_name); +} + +extern "C" int rbd_mirror_peer_site_set_name( + rados_ioctx_t p, const char *uuid, const char *site_name) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + return librbd::api::Mirror<>::peer_site_set_name(io_ctx, uuid, site_name); +} + +extern "C" int rbd_mirror_peer_site_set_direction( + rados_ioctx_t p, const char *uuid, rbd_mirror_peer_direction_t direction) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + return librbd::api::Mirror<>::peer_site_set_direction(io_ctx, uuid, + direction); +} + +extern "C" int rbd_mirror_peer_site_get_attributes( + rados_ioctx_t p, const char *uuid, char *keys, size_t *max_key_len, + char *values, size_t *max_val_len, size_t *key_value_count) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + std::map<std::string, std::string> attributes; + int r = librbd::api::Mirror<>::peer_site_get_attributes( + io_ctx, uuid, &attributes); + if (r < 0) { + return r; + } + + size_t key_total_len = 0, val_total_len = 0; + for (auto& it : attributes) { + key_total_len += it.first.size() + 1; + val_total_len += it.second.length() + 1; + } + + bool too_short = ((*max_key_len < key_total_len) || + (*max_val_len < val_total_len)); + + *max_key_len = key_total_len; + *max_val_len = val_total_len; + *key_value_count = attributes.size(); + if (too_short) { + return -ERANGE; + } + + char *keys_p = keys; + char *values_p = values; + for (auto& it : attributes) { + strncpy(keys_p, it.first.c_str(), it.first.size() + 1); + keys_p += it.first.size() + 1; + + strncpy(values_p, it.second.c_str(), it.second.length() + 1); + values_p += it.second.length() + 1; + } + + return 0; +} + +extern "C" int rbd_mirror_peer_site_set_attributes( + rados_ioctx_t p, const char *uuid, const char *keys, const char *values, + size_t count) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + std::map<std::string, std::string> attributes; + + for (size_t i = 0; i < count; ++i) { + const char* key = keys; + keys += strlen(key) + 1; + const char* value = values; + values += strlen(value) + 1; + attributes[key] = value; + } + + return librbd::api::Mirror<>::peer_site_set_attributes( + io_ctx, uuid, attributes); +} + +extern "C" int rbd_mirror_image_global_status_list(rados_ioctx_t p, + const char *start_id, size_t max, char **image_ids, + rbd_mirror_image_global_status_t *images, size_t *len) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + std::map<std::string, librbd::mirror_image_global_status_t> cpp_images; + + int r = librbd::api::Mirror<>::image_global_status_list( + io_ctx, start_id, max, &cpp_images); + if (r < 0) { + return r; + } + + size_t i = 0; + for (auto &it : cpp_images) { + ceph_assert(i < max); + const std::string &image_id = it.first; + image_ids[i] = strdup(image_id.c_str()); + mirror_image_global_status_cpp_to_c(it.second, &images[i]); + i++; + } + *len = i; + return 0; +} + +extern "C" void rbd_mirror_image_global_status_cleanup( + rbd_mirror_image_global_status_t *global_status) { + free(global_status->name); + rbd_mirror_image_get_info_cleanup(&global_status->info); + for (auto idx = 0U; idx < global_status->site_statuses_count; ++idx) { + free(global_status->site_statuses[idx].mirror_uuid); + free(global_status->site_statuses[idx].description); + } + free(global_status->site_statuses); +} + +extern "C" void rbd_mirror_image_global_status_list_cleanup( + char **image_ids, rbd_mirror_image_global_status_t *images, size_t len) { + for (size_t i = 0; i < len; i++) { + free(image_ids[i]); + rbd_mirror_image_global_status_cleanup(&images[i]); + } +} + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + +extern "C" int rbd_mirror_peer_add(rados_ioctx_t p, char *uuid, + size_t uuid_max_length, + const char *cluster_name, + const char *client_name) { + return rbd_mirror_peer_site_add( + p, uuid, uuid_max_length, RBD_MIRROR_PEER_DIRECTION_RX_TX, cluster_name, + client_name); +} + +extern "C" int rbd_mirror_peer_remove(rados_ioctx_t p, const char *uuid) { + return rbd_mirror_peer_site_remove(p, uuid); +} + +extern "C" int rbd_mirror_peer_list(rados_ioctx_t p, + rbd_mirror_peer_t *peers, int *max_peers) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + std::vector<librbd::mirror_peer_site_t> peer_vector; + int r = librbd::api::Mirror<>::peer_site_list(io_ctx, &peer_vector); + if (r < 0) { + return r; + } + + if (*max_peers < static_cast<int>(peer_vector.size())) { + *max_peers = static_cast<int>(peer_vector.size()); + return -ERANGE; + } + + for (int i = 0; i < static_cast<int>(peer_vector.size()); ++i) { + peers[i].uuid = strdup(peer_vector[i].uuid.c_str()); + peers[i].cluster_name = strdup(peer_vector[i].site_name.c_str()); + peers[i].client_name = strdup(peer_vector[i].client_name.c_str()); + } + *max_peers = static_cast<int>(peer_vector.size()); + return 0; +} + +extern "C" void rbd_mirror_peer_list_cleanup(rbd_mirror_peer_t *peers, + int max_peers) { + for (int i = 0; i < max_peers; ++i) { + free(peers[i].uuid); + free(peers[i].cluster_name); + free(peers[i].client_name); + } +} + +extern "C" int rbd_mirror_peer_set_client(rados_ioctx_t p, const char *uuid, + const char *client_name) { + return rbd_mirror_peer_site_set_client_name(p, uuid, client_name); +} + +extern "C" int rbd_mirror_peer_set_cluster(rados_ioctx_t p, const char *uuid, + const char *cluster_name) { + return rbd_mirror_peer_site_set_name(p, uuid, cluster_name); +} + +extern "C" int rbd_mirror_peer_get_attributes( + rados_ioctx_t p, const char *uuid, char *keys, size_t *max_key_len, + char *values, size_t *max_val_len, size_t *key_value_count) { + return rbd_mirror_peer_site_get_attributes( + p, uuid, keys, max_key_len, values, max_val_len, key_value_count); +} + +extern "C" int rbd_mirror_peer_set_attributes( + rados_ioctx_t p, const char *uuid, const char *keys, const char *values, + size_t count) { + return rbd_mirror_peer_site_set_attributes( + p, uuid, keys, values, count); +} + +extern "C" int rbd_mirror_image_status_list(rados_ioctx_t p, + const char *start_id, size_t max, char **image_ids, + rbd_mirror_image_status_t *images, size_t *len) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + std::map<std::string, librbd::mirror_image_global_status_t> cpp_images; + + int r = librbd::api::Mirror<>::image_global_status_list( + io_ctx, start_id, max, &cpp_images); + if (r < 0) { + return r; + } + + size_t i = 0; + for (auto &it : cpp_images) { + ceph_assert(i < max); + const std::string &image_id = it.first; + image_ids[i] = strdup(image_id.c_str()); + mirror_image_global_status_cpp_to_c(it.second, &images[i]); + i++; + } + *len = i; + return 0; +} + +extern "C" void rbd_mirror_image_status_list_cleanup(char **image_ids, + rbd_mirror_image_status_t *images, size_t len) { + for (size_t i = 0; i < len; i++) { + free(image_ids[i]); + free(images[i].name); + rbd_mirror_image_get_info_cleanup(&images[i].info); + free(images[i].description); + } +} + +#pragma GCC diagnostic pop + +extern "C" int rbd_mirror_image_status_summary(rados_ioctx_t p, + rbd_mirror_image_status_state_t *states, int *counts, size_t *maxlen) { + + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + std::map<librbd::mirror_image_status_state_t, int> states_; + int r = librbd::api::Mirror<>::image_status_summary(io_ctx, &states_); + if (r < 0) { + return r; + } + + size_t i = 0; + for (auto &it : states_) { + if (i == *maxlen) { + return -ERANGE; + } + states[i] = it.first; + counts[i] = it.second; + i++; + } + *maxlen = i; + return 0; +} + +extern "C" int rbd_mirror_image_instance_id_list( + rados_ioctx_t p, const char *start_id, size_t max, char **image_ids, + char **instance_ids, size_t *len) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + std::map<std::string, std::string> cpp_instance_ids; + + int r = librbd::api::Mirror<>::image_instance_id_list(io_ctx, start_id, max, + &cpp_instance_ids); + if (r < 0) { + return r; + } + + size_t i = 0; + for (auto &it : cpp_instance_ids) { + ceph_assert(i < max); + image_ids[i] = strdup(it.first.c_str()); + instance_ids[i] = strdup(it.second.c_str()); + i++; + } + *len = i; + return 0; +} + +extern "C" void rbd_mirror_image_instance_id_list_cleanup( + char **image_ids, char **instance_ids, size_t len) { + for (size_t i = 0; i < len; i++) { + free(image_ids[i]); + free(instance_ids[i]); + } +} + +extern "C" int rbd_mirror_image_info_list( + rados_ioctx_t p, rbd_mirror_image_mode_t *mode_filter, + const char *start_id, size_t max, char **image_ids, + rbd_mirror_image_mode_t *mode_entries, + rbd_mirror_image_info_t *info_entries, size_t *num_entries) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + std::map<std::string, std::pair<librbd::mirror_image_mode_t, + librbd::mirror_image_info_t>> cpp_entries; + + int r = librbd::api::Mirror<>::image_info_list(io_ctx, mode_filter, start_id, + max, &cpp_entries); + if (r < 0) { + return r; + } + + ceph_assert(cpp_entries.size() <= max); + + for (auto &it : cpp_entries) { + *(image_ids++) = strdup(it.first.c_str()); + *(mode_entries++) = it.second.first; + mirror_image_info_cpp_to_c(it.second.second, info_entries++); + } + *num_entries = cpp_entries.size(); + + return 0; +} + +extern "C" void rbd_mirror_image_info_list_cleanup( + char **image_ids, rbd_mirror_image_info_t *info_entries, + size_t num_entries) { + for (size_t i = 0; i < num_entries; i++) { + free(*(image_ids++)); + rbd_mirror_image_get_info_cleanup(info_entries++); + } +} + +/* helpers */ + +extern "C" void rbd_image_spec_cleanup(rbd_image_spec_t *image) +{ + free(image->id); + free(image->name); +} + +extern "C" void rbd_image_spec_list_cleanup(rbd_image_spec_t *images, + size_t num_images) +{ + for (size_t idx = 0; idx < num_images; ++idx) { + rbd_image_spec_cleanup(&images[idx]); + } +} + +extern "C" void rbd_linked_image_spec_cleanup(rbd_linked_image_spec_t *image) +{ + free(image->pool_name); + free(image->pool_namespace); + free(image->image_id); + free(image->image_name); +} + +extern "C" void rbd_linked_image_spec_list_cleanup( + rbd_linked_image_spec_t *images, size_t num_images) +{ + for (size_t idx = 0; idx < num_images; ++idx) { + rbd_linked_image_spec_cleanup(&images[idx]); + } +} + +extern "C" void rbd_snap_spec_cleanup(rbd_snap_spec_t *snap) +{ + free(snap->name); +} + +/* images */ +extern "C" int rbd_list(rados_ioctx_t p, char *names, size_t *size) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, list_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id()); + std::vector<librbd::image_spec_t> cpp_image_specs; + int r = librbd::api::Image<>::list_images(io_ctx, &cpp_image_specs); + if (r < 0) { + tracepoint(librbd, list_exit, r, *size); + return r; + } + + size_t expected_size = 0; + + for (auto& it : cpp_image_specs) { + expected_size += it.name.size() + 1; + } + if (*size < expected_size) { + *size = expected_size; + tracepoint(librbd, list_exit, -ERANGE, *size); + return -ERANGE; + } + + if (names == NULL) { + tracepoint(librbd, list_exit, -EINVAL, *size); + return -EINVAL; + } + + for (auto& it : cpp_image_specs) { + const char* name = it.name.c_str(); + tracepoint(librbd, list_entry, name); + strcpy(names, name); + names += strlen(names) + 1; + } + tracepoint(librbd, list_exit, (int)expected_size, *size); + return (int)expected_size; +} + +extern "C" int rbd_list2(rados_ioctx_t p, rbd_image_spec_t *images, + size_t *size) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, list_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id()); + // FIPS zeroization audit 20191117: this memset is not security related. + memset(images, 0, sizeof(*images) * *size); + std::vector<librbd::image_spec_t> cpp_image_specs; + int r = librbd::api::Image<>::list_images(io_ctx, &cpp_image_specs); + if (r < 0) { + tracepoint(librbd, list_exit, r, *size); + return r; + } + + size_t expected_size = cpp_image_specs.size(); + if (*size < expected_size) { + *size = expected_size; + tracepoint(librbd, list_exit, -ERANGE, *size); + return -ERANGE; + } + + *size = expected_size; + for (size_t idx = 0; idx < expected_size; ++idx) { + images[idx].id = strdup(cpp_image_specs[idx].id.c_str()); + images[idx].name = strdup(cpp_image_specs[idx].name.c_str()); + } + tracepoint(librbd, list_exit, 0, *size); + return 0; +} + +extern "C" int rbd_create(rados_ioctx_t p, const char *name, uint64_t size, int *order) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, create_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, *order); + int r = librbd::create(io_ctx, name, size, order); + tracepoint(librbd, create_exit, r, *order); + return r; +} + +extern "C" int rbd_create2(rados_ioctx_t p, const char *name, + uint64_t size, uint64_t features, + int *order) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, create2_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order); + int r = librbd::create(io_ctx, name, size, false, features, order, 0, 0); + tracepoint(librbd, create2_exit, r, *order); + return r; +} + +extern "C" int rbd_create3(rados_ioctx_t p, const char *name, + uint64_t size, uint64_t features, + int *order, + uint64_t stripe_unit, uint64_t stripe_count) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, create3_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, features, *order, stripe_unit, stripe_count); + int r = librbd::create(io_ctx, name, size, false, features, order, + stripe_unit, stripe_count); + tracepoint(librbd, create3_exit, r, *order); + return r; +} + +extern "C" int rbd_create4(rados_ioctx_t p, const char *name, + uint64_t size, rbd_image_options_t opts) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, create4_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name, size, opts); + librbd::ImageOptions opts_(opts); + int r = librbd::create(io_ctx, name, "", size, opts_, "", "", false); + tracepoint(librbd, create4_exit, r); + return r; +} + +extern "C" int rbd_clone(rados_ioctx_t p_ioctx, const char *p_name, + const char *p_snap_name, rados_ioctx_t c_ioctx, + const char *c_name, uint64_t features, int *c_order) +{ + librados::IoCtx p_ioc, c_ioc; + librados::IoCtx::from_rados_ioctx_t(p_ioctx, p_ioc); + librados::IoCtx::from_rados_ioctx_t(c_ioctx, c_ioc); + TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioc)); + tracepoint(librbd, clone_enter, p_ioc.get_pool_name().c_str(), p_ioc.get_id(), p_name, p_snap_name, c_ioc.get_pool_name().c_str(), c_ioc.get_id(), c_name, features); + int r = librbd::clone(p_ioc, p_name, p_snap_name, c_ioc, c_name, + features, c_order, 0, 0); + tracepoint(librbd, clone_exit, r, *c_order); + return r; +} + +extern "C" int rbd_clone2(rados_ioctx_t p_ioctx, const char *p_name, + const char *p_snap_name, rados_ioctx_t c_ioctx, + const char *c_name, uint64_t features, int *c_order, + uint64_t stripe_unit, int stripe_count) +{ + librados::IoCtx p_ioc, c_ioc; + librados::IoCtx::from_rados_ioctx_t(p_ioctx, p_ioc); + librados::IoCtx::from_rados_ioctx_t(c_ioctx, c_ioc); + TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioc)); + tracepoint(librbd, clone2_enter, p_ioc.get_pool_name().c_str(), p_ioc.get_id(), p_name, p_snap_name, c_ioc.get_pool_name().c_str(), c_ioc.get_id(), c_name, features, stripe_unit, stripe_count); + int r = librbd::clone(p_ioc, p_name, p_snap_name, c_ioc, c_name, + features, c_order, stripe_unit, stripe_count); + tracepoint(librbd, clone2_exit, r, *c_order); + return r; +} + +extern "C" int rbd_clone3(rados_ioctx_t p_ioctx, const char *p_name, + const char *p_snap_name, rados_ioctx_t c_ioctx, + const char *c_name, rbd_image_options_t c_opts) +{ + librados::IoCtx p_ioc, c_ioc; + librados::IoCtx::from_rados_ioctx_t(p_ioctx, p_ioc); + librados::IoCtx::from_rados_ioctx_t(c_ioctx, c_ioc); + TracepointProvider::initialize<tracepoint_traits>(get_cct(p_ioc)); + tracepoint(librbd, clone3_enter, p_ioc.get_pool_name().c_str(), p_ioc.get_id(), p_name, p_snap_name, c_ioc.get_pool_name().c_str(), c_ioc.get_id(), c_name, c_opts); + librbd::ImageOptions c_opts_(c_opts); + int r = librbd::clone(p_ioc, nullptr, p_name, p_snap_name, c_ioc, nullptr, + c_name, c_opts_, "", ""); + tracepoint(librbd, clone3_exit, r); + return r; +} + +extern "C" int rbd_remove(rados_ioctx_t p, const char *name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Image<>::remove(io_ctx, name, prog_ctx); + tracepoint(librbd, remove_exit, r); + return r; +} + +extern "C" int rbd_remove_with_progress(rados_ioctx_t p, const char *name, + librbd_progress_fn_t cb, void *cbdata) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, remove_enter, io_ctx.get_pool_name().c_str(), io_ctx.get_id(), name); + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = librbd::api::Image<>::remove(io_ctx, name, prog_ctx); + tracepoint(librbd, remove_exit, r); + return r; +} + +extern "C" int rbd_trash_move(rados_ioctx_t p, const char *name, + uint64_t delay) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_move_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), name); + int r = librbd::api::Trash<>::move(io_ctx, RBD_TRASH_IMAGE_SOURCE_USER, name, + delay); + tracepoint(librbd, trash_move_exit, r); + return r; +} + +extern "C" int rbd_trash_get(rados_ioctx_t io, const char *id, + rbd_trash_image_info_t *info) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(io, io_ctx); + + librbd::trash_image_info_t cpp_info; + int r = librbd::api::Trash<>::get(io_ctx, id, &cpp_info); + if (r < 0) { + return r; + } + + trash_image_info_cpp_to_c(cpp_info, info); + return 0; +} + +extern "C" void rbd_trash_get_cleanup(rbd_trash_image_info_t *info) { + free(info->id); + free(info->name); +} + +extern "C" int rbd_trash_list(rados_ioctx_t p, rbd_trash_image_info_t *entries, + size_t *num_entries) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_list_enter, + io_ctx.get_pool_name().c_str(), io_ctx.get_id()); + // FIPS zeroization audit 20191117: this memset is not security related. + memset(entries, 0, sizeof(*entries) * *num_entries); + + vector<librbd::trash_image_info_t> cpp_entries; + int r = librbd::api::Trash<>::list(io_ctx, cpp_entries, true); + if (r < 0) { + tracepoint(librbd, trash_list_exit, r, *num_entries); + return r; + } + + if (*num_entries < cpp_entries.size()) { + *num_entries = cpp_entries.size(); + tracepoint(librbd, trash_list_exit, -ERANGE, *num_entries); + return -ERANGE; + } + + int i=0; + for (const auto &entry : cpp_entries) { + trash_image_info_cpp_to_c(entry, &entries[i++]); + } + *num_entries = cpp_entries.size(); + + return *num_entries; +} + +extern "C" void rbd_trash_list_cleanup(rbd_trash_image_info_t *entries, + size_t num_entries) { + for (size_t i=0; i < num_entries; i++) { + rbd_trash_get_cleanup(&entries[i]); + } +} + +extern "C" int rbd_trash_purge(rados_ioctx_t io, time_t expire_ts, + float threshold) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(io, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_purge_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), expire_ts, threshold); + librbd::NoOpProgressContext nop_pctx; + int r = librbd::api::Trash<>::purge(io_ctx, expire_ts, threshold, nop_pctx); + tracepoint(librbd, trash_purge_exit, r); + return r; +} + +extern "C" int rbd_trash_purge_with_progress(rados_ioctx_t io, time_t expire_ts, + float threshold, librbd_progress_fn_t cb, void* cbdata) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(io, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_purge_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), expire_ts, threshold); + librbd::CProgressContext pctx(cb, cbdata); + int r = librbd::api::Trash<>::purge(io_ctx, expire_ts, threshold, pctx); + tracepoint(librbd, trash_purge_exit, r); + return r; +} + +extern "C" int rbd_trash_remove(rados_ioctx_t p, const char *image_id, + bool force) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_id, force); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Trash<>::remove(io_ctx, image_id, force, prog_ctx); + tracepoint(librbd, trash_remove_exit, r); + return r; +} + +extern "C" int rbd_trash_remove_with_progress(rados_ioctx_t p, + const char *image_id, + bool force, + librbd_progress_fn_t cb, + void *cbdata) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_remove_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_id, force); + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = librbd::api::Trash<>::remove(io_ctx, image_id, force, prog_ctx); + tracepoint(librbd, trash_remove_exit, r); + return r; +} + +extern "C" int rbd_trash_restore(rados_ioctx_t p, const char *id, + const char *name) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, trash_undelete_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), id, name); + int r = librbd::api::Trash<>::restore( + io_ctx, librbd::api::Trash<>::ALLOWED_RESTORE_SOURCES, id, name); + tracepoint(librbd, trash_undelete_exit, r); + return r; +} + +extern "C" int rbd_namespace_create(rados_ioctx_t io, + const char *namespace_name) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(io, io_ctx); + + return librbd::api::Namespace<>::create(io_ctx, namespace_name); +} + +extern "C" int rbd_namespace_remove(rados_ioctx_t io, + const char *namespace_name) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(io, io_ctx); + + return librbd::api::Namespace<>::remove(io_ctx, namespace_name); +} + +extern "C" int rbd_namespace_list(rados_ioctx_t io, char *names, size_t *size) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(io, io_ctx); + + if (names == nullptr || size == nullptr) { + return -EINVAL; + } + + std::vector<std::string> cpp_names; + int r = librbd::api::Namespace<>::list(io_ctx, &cpp_names); + if (r < 0) { + return r; + } + + size_t expected_size = 0; + for (size_t i = 0; i < cpp_names.size(); i++) { + expected_size += cpp_names[i].size() + 1; + } + if (*size < expected_size) { + *size = expected_size; + return -ERANGE; + } + + *size = expected_size; + for (int i = 0; i < (int)cpp_names.size(); i++) { + const char* name = cpp_names[i].c_str(); + strcpy(names, name); + names += strlen(names) + 1; + } + + return (int)expected_size; +} + +extern "C" int rbd_namespace_exists(rados_ioctx_t io, + const char *namespace_name, + bool *exists) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(io, io_ctx); + + return librbd::api::Namespace<>::exists(io_ctx, namespace_name, exists); +} + +extern "C" int rbd_pool_init(rados_ioctx_t io, bool force) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(io, io_ctx); + + return librbd::api::Pool<>::init(io_ctx, force); +} + +extern "C" void rbd_pool_stats_create(rbd_pool_stats_t *stats) { + *stats = reinterpret_cast<rbd_pool_stats_t>( + new librbd::api::Pool<>::StatOptions{}); +} + +extern "C" void rbd_pool_stats_destroy(rbd_pool_stats_t stats) { + auto pool_stat_options = + reinterpret_cast<librbd::api::Pool<>::StatOptions*>(stats); + delete pool_stat_options; +} + +extern "C" int rbd_pool_stats_option_add_uint64(rbd_pool_stats_t stats, + int stat_option, + uint64_t* stat_val) { + auto pool_stat_options = + reinterpret_cast<librbd::api::Pool<>::StatOptions*>(stats); + return librbd::api::Pool<>::add_stat_option( + pool_stat_options, static_cast<rbd_pool_stat_option_t>(stat_option), + stat_val); +} + +extern "C" int rbd_pool_stats_get( + rados_ioctx_t io, rbd_pool_stats_t pool_stats) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(io, io_ctx); + + auto pool_stat_options = + reinterpret_cast<librbd::api::Pool<>::StatOptions*>(pool_stats); + return librbd::api::Pool<>::get_stats(io_ctx, pool_stat_options); +} + +extern "C" int rbd_copy(rbd_image_t image, rados_ioctx_t dest_p, + const char *destname) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname); + librbd::ImageOptions opts; + librbd::NoOpProgressContext prog_ctx; + int r = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0); + tracepoint(librbd, copy_exit, r); + return r; +} + +extern "C" int rbd_copy2(rbd_image_t srcp, rbd_image_t destp) +{ + librbd::ImageCtx *src = (librbd::ImageCtx *)srcp; + librbd::ImageCtx *dest = (librbd::ImageCtx *)destp; + tracepoint(librbd, copy2_enter, src, src->name.c_str(), src->snap_name.c_str(), src->read_only, dest, dest->name.c_str(), dest->snap_name.c_str(), dest->read_only); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::copy(src, dest, prog_ctx, 0); + tracepoint(librbd, copy2_exit, r); + return r; +} + +extern "C" int rbd_copy3(rbd_image_t image, rados_ioctx_t dest_p, + const char *destname, rbd_image_options_t c_opts) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, c_opts); + librbd::ImageOptions c_opts_(c_opts); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::copy(ictx, dest_io_ctx, destname, c_opts_, prog_ctx, 0); + tracepoint(librbd, copy3_exit, r); + return r; +} + +extern "C" int rbd_copy4(rbd_image_t image, rados_ioctx_t dest_p, + const char *destname, rbd_image_options_t c_opts, size_t sparse_size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, c_opts, sparse_size); + librbd::ImageOptions c_opts_(c_opts); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::copy(ictx, dest_io_ctx, destname, c_opts_, prog_ctx, sparse_size); + tracepoint(librbd, copy4_exit, r); + return r; +} + +extern "C" int rbd_copy_with_progress(rbd_image_t image, rados_ioctx_t dest_p, + const char *destname, + librbd_progress_fn_t fn, void *data) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + tracepoint(librbd, copy_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname); + librbd::ImageOptions opts; + librbd::CProgressContext prog_ctx(fn, data); + int ret = librbd::copy(ictx, dest_io_ctx, destname, opts, prog_ctx, 0); + tracepoint(librbd, copy_exit, ret); + return ret; +} + +extern "C" int rbd_copy_with_progress2(rbd_image_t srcp, rbd_image_t destp, + librbd_progress_fn_t fn, void *data) +{ + librbd::ImageCtx *src = (librbd::ImageCtx *)srcp; + librbd::ImageCtx *dest = (librbd::ImageCtx *)destp; + tracepoint(librbd, copy2_enter, src, src->name.c_str(), src->snap_name.c_str(), src->read_only, dest, dest->name.c_str(), dest->snap_name.c_str(), dest->read_only); + librbd::CProgressContext prog_ctx(fn, data); + int ret = librbd::copy(src, dest, prog_ctx, 0); + tracepoint(librbd, copy2_exit, ret); + return ret; +} + +extern "C" int rbd_copy_with_progress3(rbd_image_t image, rados_ioctx_t dest_p, + const char *destname, + rbd_image_options_t dest_opts, + librbd_progress_fn_t fn, void *data) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + tracepoint(librbd, copy3_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, dest_opts); + librbd::ImageOptions dest_opts_(dest_opts); + librbd::CProgressContext prog_ctx(fn, data); + int ret = librbd::copy(ictx, dest_io_ctx, destname, dest_opts_, prog_ctx, 0); + tracepoint(librbd, copy3_exit, ret); + return ret; +} + +extern "C" int rbd_copy_with_progress4(rbd_image_t image, rados_ioctx_t dest_p, + const char *destname, + rbd_image_options_t dest_opts, + librbd_progress_fn_t fn, void *data, size_t sparse_size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + tracepoint(librbd, copy4_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), destname, dest_opts, sparse_size); + librbd::ImageOptions dest_opts_(dest_opts); + librbd::CProgressContext prog_ctx(fn, data); + int ret = librbd::copy(ictx, dest_io_ctx, destname, dest_opts_, prog_ctx, sparse_size); + tracepoint(librbd, copy4_exit, ret); + return ret; +} + +extern "C" int rbd_deep_copy(rbd_image_t image, rados_ioctx_t dest_p, + const char *destname, rbd_image_options_t c_opts) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + tracepoint(librbd, deep_copy_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, + dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), + destname, c_opts); + librbd::ImageOptions opts(c_opts); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Image<>::deep_copy(ictx, dest_io_ctx, destname, opts, + prog_ctx); + tracepoint(librbd, deep_copy_exit, r); + return r; +} + +extern "C" int rbd_deep_copy_with_progress(rbd_image_t image, + rados_ioctx_t dest_p, + const char *destname, + rbd_image_options_t dest_opts, + librbd_progress_fn_t fn, void *data) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + tracepoint(librbd, deep_copy_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, + dest_io_ctx.get_pool_name().c_str(), dest_io_ctx.get_id(), + destname, dest_opts); + librbd::ImageOptions opts(dest_opts); + librbd::CProgressContext prog_ctx(fn, data); + int ret = librbd::api::Image<>::deep_copy(ictx, dest_io_ctx, destname, opts, + prog_ctx); + tracepoint(librbd, deep_copy_exit, ret); + return ret; +} + +extern "C" int rbd_encryption_format(rbd_image_t image, + rbd_encryption_format_t format, + rbd_encryption_options_t opts, + size_t opts_size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Image<>::encryption_format( + ictx, format, opts, opts_size, true); +} + +extern "C" int rbd_encryption_load(rbd_image_t image, + rbd_encryption_format_t format, + rbd_encryption_options_t opts, + size_t opts_size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Image<>::encryption_load( + ictx, format, opts, opts_size, true); +} + +extern "C" int rbd_flatten(rbd_image_t image) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); + librbd::NoOpProgressContext prog_ctx; + int r = ictx->operations->flatten(prog_ctx); + tracepoint(librbd, flatten_exit, r); + return r; +} + +extern "C" int rbd_flatten_with_progress(rbd_image_t image, + librbd_progress_fn_t cb, void *cbdata) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, flatten_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = ictx->operations->flatten(prog_ctx); + tracepoint(librbd, flatten_exit, r); + return r; +} + +extern "C" int rbd_sparsify(rbd_image_t image, size_t sparse_size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, sparsify_enter, ictx, ictx->name.c_str(), sparse_size, + ictx->id.c_str()); + librbd::NoOpProgressContext prog_ctx; + int r = ictx->operations->sparsify(sparse_size, prog_ctx); + tracepoint(librbd, sparsify_exit, r); + return r; +} + +extern "C" int rbd_sparsify_with_progress(rbd_image_t image, size_t sparse_size, + librbd_progress_fn_t cb, void *cbdata) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, sparsify_enter, ictx, ictx->name.c_str(), sparse_size, + ictx->id.c_str()); + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = ictx->operations->sparsify(sparse_size, prog_ctx); + tracepoint(librbd, sparsify_exit, r); + return r; +} + +extern "C" int rbd_rename(rados_ioctx_t src_p, const char *srcname, + const char *destname) +{ + librados::IoCtx src_io_ctx; + librados::IoCtx::from_rados_ioctx_t(src_p, src_io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(src_io_ctx)); + tracepoint(librbd, rename_enter, src_io_ctx.get_pool_name().c_str(), src_io_ctx.get_id(), srcname, destname); + int r = librbd::rename(src_io_ctx, srcname, destname); + tracepoint(librbd, rename_exit, r); + return r; +} + +extern "C" int rbd_migration_prepare(rados_ioctx_t p, const char *image_name, + rados_ioctx_t dest_p, + const char *dest_image_name, + rbd_image_options_t opts_) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + tracepoint(librbd, migration_prepare_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name, dest_io_ctx.get_pool_name().c_str(), + dest_io_ctx.get_id(), dest_image_name, opts_); + librbd::ImageOptions opts(opts_); + int r = librbd::api::Migration<>::prepare(io_ctx, image_name, dest_io_ctx, + dest_image_name, opts); + tracepoint(librbd, migration_prepare_exit, r); + return r; +} + +extern "C" int rbd_migration_prepare_import( + const char *source_spec, rados_ioctx_t dest_p, + const char *dest_image_name, rbd_image_options_t opts_) { + librados::IoCtx dest_io_ctx; + librados::IoCtx::from_rados_ioctx_t(dest_p, dest_io_ctx); + librbd::ImageOptions opts(opts_); + return librbd::api::Migration<>::prepare_import(source_spec, dest_io_ctx, + dest_image_name, opts); +} + +extern "C" int rbd_migration_execute(rados_ioctx_t p, const char *image_name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_execute_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Migration<>::execute(io_ctx, image_name, prog_ctx); + tracepoint(librbd, migration_execute_exit, r); + return r; +} + +extern "C" int rbd_migration_execute_with_progress(rados_ioctx_t p, + const char *name, + librbd_progress_fn_t fn, + void *data) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_execute_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), name); + librbd::CProgressContext prog_ctx(fn, data); + int r = librbd::api::Migration<>::execute(io_ctx, name, prog_ctx); + tracepoint(librbd, migration_execute_exit, r); + return r; +} + +extern "C" int rbd_migration_abort(rados_ioctx_t p, const char *image_name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_abort_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Migration<>::abort(io_ctx, image_name, prog_ctx); + tracepoint(librbd, migration_abort_exit, r); + return r; +} + +extern "C" int rbd_migration_abort_with_progress(rados_ioctx_t p, + const char *name, + librbd_progress_fn_t fn, + void *data) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_abort_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), name); + librbd::CProgressContext prog_ctx(fn, data); + int r = librbd::api::Migration<>::abort(io_ctx, name, prog_ctx); + tracepoint(librbd, migration_abort_exit, r); + return r; +} + +extern "C" int rbd_migration_commit(rados_ioctx_t p, const char *image_name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_commit_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Migration<>::commit(io_ctx, image_name, prog_ctx); + tracepoint(librbd, migration_commit_exit, r); + return r; +} + +extern "C" int rbd_migration_commit_with_progress(rados_ioctx_t p, + const char *name, + librbd_progress_fn_t fn, + void *data) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_commit_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), name); + librbd::CProgressContext prog_ctx(fn, data); + int r = librbd::api::Migration<>::commit(io_ctx, name, prog_ctx); + tracepoint(librbd, migration_commit_exit, r); + return r; +} + +extern "C" int rbd_migration_status(rados_ioctx_t p, const char *image_name, + rbd_image_migration_status_t *status, + size_t status_size) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, migration_status_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), image_name); + + if (status_size != sizeof(rbd_image_migration_status_t)) { + tracepoint(librbd, migration_status_exit, -ERANGE); + return -ERANGE; + } + + librbd::image_migration_status_t cpp_status; + int r = librbd::api::Migration<>::status(io_ctx, image_name, &cpp_status); + if (r >= 0) { + status->source_pool_id = cpp_status.source_pool_id; + status->source_pool_namespace = + strdup(cpp_status.source_pool_namespace.c_str()); + status->source_image_name = strdup(cpp_status.source_image_name.c_str()); + status->source_image_id = strdup(cpp_status.source_image_id.c_str()); + status->dest_pool_id = cpp_status.dest_pool_id; + status->dest_pool_namespace = + strdup(cpp_status.dest_pool_namespace.c_str()); + status->dest_image_name = strdup(cpp_status.dest_image_name.c_str()); + status->dest_image_id = strdup(cpp_status.dest_image_id.c_str()); + status->state = cpp_status.state; + status->state_description = strdup(cpp_status.state_description.c_str()); + } + + tracepoint(librbd, migration_status_exit, r); + return r; +} + +extern "C" void rbd_migration_status_cleanup(rbd_image_migration_status_t *s) +{ + free(s->source_pool_namespace); + free(s->source_image_name); + free(s->source_image_id); + free(s->dest_pool_namespace); + free(s->dest_image_name); + free(s->dest_image_id); + free(s->state_description); +} + +extern "C" int rbd_pool_metadata_get(rados_ioctx_t p, const char *key, + char *value, size_t *vallen) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + string val_s; + int r = librbd::api::PoolMetadata<>::get(io_ctx, key, &val_s); + if (*vallen < val_s.size() + 1) { + r = -ERANGE; + *vallen = val_s.size() + 1; + } else { + strncpy(value, val_s.c_str(), val_s.size() + 1); + } + + return r; +} + +extern "C" int rbd_pool_metadata_set(rados_ioctx_t p, const char *key, + const char *value) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + int r = librbd::api::PoolMetadata<>::set(io_ctx, key, value); + return r; +} + +extern "C" int rbd_pool_metadata_remove(rados_ioctx_t p, const char *key) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + int r = librbd::api::PoolMetadata<>::remove(io_ctx, key); + return r; +} + +extern "C" int rbd_pool_metadata_list(rados_ioctx_t p, const char *start, + uint64_t max, char *key, size_t *key_len, + char *value, size_t *val_len) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + map<string, bufferlist> pairs; + int r = librbd::api::PoolMetadata<>::list(io_ctx, start, max, &pairs); + if (r < 0) { + return r; + } + size_t key_total_len = 0, val_total_len = 0; + for (auto &it : pairs) { + key_total_len += it.first.size() + 1; + val_total_len += it.second.length() + 1; + } + if (*key_len < key_total_len || *val_len < val_total_len) { + *key_len = key_total_len; + *val_len = val_total_len; + return -ERANGE; + } + *key_len = key_total_len; + *val_len = val_total_len; + + char *key_p = key, *value_p = value; + for (auto &it : pairs) { + strncpy(key_p, it.first.c_str(), it.first.size() + 1); + key_p += it.first.size() + 1; + strncpy(value_p, it.second.c_str(), it.second.length()); + value_p += it.second.length(); + *value_p = '\0'; + value_p++; + } + return 0; +} + +extern "C" int rbd_config_pool_list(rados_ioctx_t p, + rbd_config_option_t *options, + int *max_options) { + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + + std::vector<librbd::config_option_t> option_vector; + int r = librbd::api::Config<>::list(io_ctx, &option_vector); + if (r < 0) { + return r; + } + + if (*max_options < static_cast<int>(option_vector.size())) { + *max_options = static_cast<int>(option_vector.size()); + return -ERANGE; + } + + for (int i = 0; i < static_cast<int>(option_vector.size()); ++i) { + config_option_cpp_to_c(option_vector[i], &options[i]); + } + *max_options = static_cast<int>(option_vector.size()); + return 0; +} + +extern "C" void rbd_config_pool_list_cleanup(rbd_config_option_t *options, + int max_options) { + for (int i = 0; i < max_options; ++i) { + config_option_cleanup(options[i]); + } +} + +extern "C" int rbd_open(rados_ioctx_t p, const char *name, rbd_image_t *image, + const char *snap_name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx, + false); + tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); + + int r = ictx->state->open(0); + if (r >= 0) { + *image = (rbd_image_t)ictx; + } + tracepoint(librbd, open_image_exit, r); + return r; +} + +extern "C" int rbd_open_by_id(rados_ioctx_t p, const char *id, + rbd_image_t *image, const char *snap_name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx, + false); + tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), + ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); + + int r = ictx->state->open(0); + if (r >= 0) { + *image = (rbd_image_t)ictx; + } + tracepoint(librbd, open_image_exit, r); + return r; +} + +extern "C" int rbd_aio_open(rados_ioctx_t p, const char *name, + rbd_image_t *image, const char *snap_name, + rbd_completion_t c) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx, + false); + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc); + ictx->state->open(0, new C_OpenComplete(ictx, get_aio_completion(comp), + image)); + tracepoint(librbd, aio_open_image_exit, 0); + return 0; +} + +extern "C" int rbd_aio_open_by_id(rados_ioctx_t p, const char *id, + rbd_image_t *image, const char *snap_name, + rbd_completion_t c) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx, + false); + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), + ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, + comp->pc); + ictx->state->open(0, new C_OpenComplete(ictx, get_aio_completion(comp), + image)); + tracepoint(librbd, aio_open_image_exit, 0); + return 0; +} + +extern "C" int rbd_open_read_only(rados_ioctx_t p, const char *name, + rbd_image_t *image, const char *snap_name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx, + true); + tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); + + int r = ictx->state->open(0); + if (r >= 0) { + *image = (rbd_image_t)ictx; + } + tracepoint(librbd, open_image_exit, r); + return r; +} + +extern "C" int rbd_open_by_id_read_only(rados_ioctx_t p, const char *id, + rbd_image_t *image, const char *snap_name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx, + true); + tracepoint(librbd, open_image_enter, ictx, ictx->name.c_str(), + ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only); + + int r = ictx->state->open(0); + if (r >= 0) { + *image = (rbd_image_t)ictx; + } + tracepoint(librbd, open_image_exit, r); + return r; +} + +extern "C" int rbd_aio_open_read_only(rados_ioctx_t p, const char *name, + rbd_image_t *image, const char *snap_name, + rbd_completion_t c) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + librbd::ImageCtx *ictx = new librbd::ImageCtx(name, "", snap_name, io_ctx, + true); + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc); + ictx->state->open(0, new C_OpenComplete(ictx, get_aio_completion(comp), + image)); + tracepoint(librbd, aio_open_image_exit, 0); + return 0; +} + +extern "C" int rbd_aio_open_by_id_read_only(rados_ioctx_t p, const char *id, + rbd_image_t *image, + const char *snap_name, + rbd_completion_t c) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + librbd::ImageCtx *ictx = new librbd::ImageCtx("", id, snap_name, io_ctx, + true); + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_open_image_enter, ictx, ictx->name.c_str(), + ictx->id.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc); + ictx->state->open(0, new C_OpenComplete(ictx, get_aio_completion(comp), + image)); + tracepoint(librbd, aio_open_image_exit, 0); + return 0; +} + +extern "C" int rbd_features_to_string(uint64_t features, char *str_features, size_t *size) +{ + std::stringstream err; + std::string get_str_features = librbd::rbd_features_to_string(features, &err); + if (!err.str().empty()) { + return -EINVAL; + } + uint64_t expected_size = get_str_features.size(); + if (*size <= expected_size) { + *size = expected_size + 1; + return -ERANGE; + } + strncpy(str_features, get_str_features.c_str(), expected_size); + str_features[expected_size] = '\0'; + *size = expected_size + 1; + return 0; +} + +extern "C" int rbd_features_from_string(const char *str_features, uint64_t *features) +{ + std::stringstream err; + *features = librbd::rbd_features_from_string(str_features, &err); + if (!err.str().empty()) { + return -EINVAL; + } + + return 0; +} + +extern "C" int rbd_close(rbd_image_t image) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str()); + + int r = ictx->state->close(); + + tracepoint(librbd, close_image_exit, r); + return r; +} + +extern "C" int rbd_aio_close(rbd_image_t image, rbd_completion_t c) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_close_image_enter, ictx, ictx->name.c_str(), ictx->id.c_str(), comp->pc); + ictx->state->close(new C_AioCompletion(ictx, librbd::io::AIO_TYPE_CLOSE, + get_aio_completion(comp))); + tracepoint(librbd, aio_close_image_exit, 0); + return 0; +} + +extern "C" int rbd_resize(rbd_image_t image, uint64_t size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); + librbd::NoOpProgressContext prog_ctx; + int r = ictx->operations->resize(size, true, prog_ctx); + tracepoint(librbd, resize_exit, r); + return r; +} + +extern "C" int rbd_resize2(rbd_image_t image, uint64_t size, bool allow_shrink, + librbd_progress_fn_t cb, void *cbdata) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = ictx->operations->resize(size, allow_shrink, prog_ctx); + tracepoint(librbd, resize_exit, r); + return r; +} + +extern "C" int rbd_resize_with_progress(rbd_image_t image, uint64_t size, + librbd_progress_fn_t cb, void *cbdata) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, resize_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, size); + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = ictx->operations->resize(size, true, prog_ctx); + tracepoint(librbd, resize_exit, r); + return r; +} + +extern "C" int rbd_stat(rbd_image_t image, rbd_image_info_t *info, + size_t infosize) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, stat_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::info(ictx, *info, infosize); + tracepoint(librbd, stat_exit, r, info); + return r; +} + +extern "C" int rbd_get_old_format(rbd_image_t image, uint8_t *old) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_old_format_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::get_old_format(ictx, old); + tracepoint(librbd, get_old_format_exit, r, *old); + return r; +} + +extern "C" int rbd_get_size(rbd_image_t image, uint64_t *size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_size_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::get_size(ictx, size); + tracepoint(librbd, get_size_exit, r, *size); + return r; +} + +extern "C" int rbd_get_features(rbd_image_t image, uint64_t *features) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_features_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::get_features(ictx, features); + tracepoint(librbd, get_features_exit, r, *features); + return r; +} + +extern "C" int rbd_update_features(rbd_image_t image, uint64_t features, + uint8_t enabled) +{ + librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image); + bool features_enabled = enabled != 0; + tracepoint(librbd, update_features_enter, ictx, features, features_enabled); + int r = ictx->operations->update_features(features, features_enabled); + tracepoint(librbd, update_features_exit, r); + return r; +} + +extern "C" int rbd_get_op_features(rbd_image_t image, uint64_t *op_features) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Image<>::get_op_features(ictx, op_features); +} + +extern "C" int rbd_get_stripe_unit(rbd_image_t image, uint64_t *stripe_unit) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_stripe_unit_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + *stripe_unit = ictx->get_stripe_unit(); + tracepoint(librbd, get_stripe_unit_exit, 0, *stripe_unit); + return 0; +} + +extern "C" int rbd_get_stripe_count(rbd_image_t image, uint64_t *stripe_count) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_stripe_count_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + *stripe_count = ictx->get_stripe_count(); + tracepoint(librbd, get_stripe_count_exit, 0, *stripe_count); + return 0; +} + +extern "C" int rbd_get_create_timestamp(rbd_image_t image, + struct timespec *timestamp) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_create_timestamp_enter, ictx, ictx->name.c_str(), + ictx->read_only); + utime_t time = ictx->get_create_timestamp(); + time.to_timespec(timestamp); + tracepoint(librbd, get_create_timestamp_exit, 0, timestamp); + return 0; +} + +extern "C" int rbd_get_access_timestamp(rbd_image_t image, + struct timespec *timestamp) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_access_timestamp_enter, ictx, ictx->name.c_str(), + ictx->read_only); + utime_t time = ictx->get_access_timestamp(); + time.to_timespec(timestamp); + tracepoint(librbd, get_access_timestamp_exit, 0, timestamp); + return 0; +} + +extern "C" int rbd_get_modify_timestamp(rbd_image_t image, + struct timespec *timestamp) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_modify_timestamp_enter, ictx, ictx->name.c_str(), + ictx->read_only); + utime_t time = ictx->get_modify_timestamp(); + time.to_timespec(timestamp); + tracepoint(librbd, get_modify_timestamp_exit, 0, timestamp); + return 0; +} + + +extern "C" int rbd_get_overlap(rbd_image_t image, uint64_t *overlap) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_overlap_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::get_overlap(ictx, overlap); + tracepoint(librbd, get_overlap_exit, r, *overlap); + return r; +} + +extern "C" int rbd_get_name(rbd_image_t image, char *name, size_t *name_len) +{ + librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image); + if (*name_len <= ictx->name.size()) { + *name_len = ictx->name.size() + 1; + return -ERANGE; + } + + strncpy(name, ictx->name.c_str(), ictx->name.size()); + name[ictx->name.size()] = '\0'; + *name_len = ictx->name.size() + 1; + return 0; +} + +extern "C" int rbd_get_id(rbd_image_t image, char *id, size_t id_len) +{ + librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image); + if (ictx->old_format) { + return -EINVAL; + } + if (ictx->id.size() >= id_len) { + return -ERANGE; + } + + strncpy(id, ictx->id.c_str(), id_len - 1); + id[id_len - 1] = '\0'; + return 0; +} + +extern "C" int rbd_get_block_name_prefix(rbd_image_t image, char *prefix, + size_t prefix_len) +{ + librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image); + if (ictx->object_prefix.size() >= prefix_len) { + return -ERANGE; + } + + strncpy(prefix, ictx->object_prefix.c_str(), prefix_len - 1); + prefix[prefix_len - 1] = '\0'; + return 0; +} + +extern "C" int64_t rbd_get_data_pool_id(rbd_image_t image) +{ + librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx *>(image); + return librbd::api::Image<>::get_data_pool_id(ictx); +} + +extern "C" int rbd_get_parent_info(rbd_image_t image, + char *parent_pool_name, size_t ppool_namelen, + char *parent_name, size_t pnamelen, + char *parent_snap_name, size_t psnap_namelen) +{ + auto ictx = reinterpret_cast<librbd::ImageCtx*>(image); + tracepoint(librbd, get_parent_info_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + + librbd::linked_image_spec_t parent_image; + librbd::snap_spec_t parent_snap; + int r = librbd::api::Image<>::get_parent(ictx, &parent_image, &parent_snap); + if (r >= 0) { + if (parent_pool_name) { + if (parent_image.pool_name.length() + 1 > ppool_namelen) { + r = -ERANGE; + } else { + strcpy(parent_pool_name, parent_image.pool_name.c_str()); + } + } + if (parent_name) { + if (parent_image.image_name.length() + 1 > pnamelen) { + r = -ERANGE; + } else { + strcpy(parent_name, parent_image.image_name.c_str()); + } + } + if (parent_snap_name) { + if (parent_snap.name.length() + 1 > psnap_namelen) { + r = -ERANGE; + } else { + strcpy(parent_snap_name, parent_snap.name.c_str()); + } + } + } + + if (r < 0) { + tracepoint(librbd, get_parent_info_exit, r, NULL, NULL, NULL, NULL); + return r; + } + + tracepoint(librbd, get_parent_info_exit, r, + parent_image.pool_name.c_str(), + parent_image.image_name.c_str(), + parent_image.image_id.c_str(), + parent_snap.name.c_str()); + return 0; +} + +extern "C" int rbd_get_parent_info2(rbd_image_t image, + char *parent_pool_name, + size_t ppool_namelen, + char *parent_name, size_t pnamelen, + char *parent_id, size_t pidlen, + char *parent_snap_name, + size_t psnap_namelen) +{ + auto ictx = reinterpret_cast<librbd::ImageCtx*>(image); + tracepoint(librbd, get_parent_info_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + + librbd::linked_image_spec_t parent_image; + librbd::snap_spec_t parent_snap; + int r = librbd::api::Image<>::get_parent(ictx, &parent_image, &parent_snap); + if (r >= 0) { + if (parent_pool_name) { + if (parent_image.pool_name.length() + 1 > ppool_namelen) { + r = -ERANGE; + } else { + strcpy(parent_pool_name, parent_image.pool_name.c_str()); + } + } + if (parent_name) { + if (parent_image.image_name.length() + 1 > pnamelen) { + r = -ERANGE; + } else { + strcpy(parent_name, parent_image.image_name.c_str()); + } + } + if (parent_id) { + if (parent_image.image_id.length() + 1 > pidlen) { + r = -ERANGE; + } else { + strcpy(parent_id, parent_image.image_id.c_str()); + } + } + if (parent_snap_name) { + if (parent_snap.name.length() + 1 > psnap_namelen) { + r = -ERANGE; + } else { + strcpy(parent_snap_name, parent_snap.name.c_str()); + } + } + } + + if (r < 0) { + tracepoint(librbd, get_parent_info_exit, r, NULL, NULL, NULL, NULL); + return r; + } + + tracepoint(librbd, get_parent_info_exit, r, + parent_image.pool_name.c_str(), + parent_image.image_name.c_str(), + parent_image.image_id.c_str(), + parent_snap.name.c_str()); + return 0; +} + +extern "C" int rbd_get_parent(rbd_image_t image, + rbd_linked_image_spec_t *parent_image, + rbd_snap_spec_t *parent_snap) +{ + auto ictx = reinterpret_cast<librbd::ImageCtx*>(image); + tracepoint(librbd, get_parent_info_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + + librbd::linked_image_spec_t cpp_parent_image; + librbd::snap_spec_t cpp_parent_snap; + int r = librbd::api::Image<>::get_parent(ictx, &cpp_parent_image, + &cpp_parent_snap); + if (r < 0) { + // FIPS zeroization audit 20191117: these memsets are not security related. + memset(parent_image, 0, sizeof(rbd_linked_image_spec_t)); + memset(parent_snap, 0, sizeof(rbd_snap_spec_t)); + } else { + *parent_image = { + .pool_id = cpp_parent_image.pool_id, + .pool_name = strdup(cpp_parent_image.pool_name.c_str()), + .pool_namespace = strdup(cpp_parent_image.pool_namespace.c_str()), + .image_id = strdup(cpp_parent_image.image_id.c_str()), + .image_name = strdup(cpp_parent_image.image_name.c_str()), + .trash = cpp_parent_image.trash}; + *parent_snap = { + .id = cpp_parent_snap.id, + .namespace_type = cpp_parent_snap.namespace_type, + .name = strdup(cpp_parent_snap.name.c_str())}; + } + + tracepoint(librbd, get_parent_info_exit, r, + parent_image->pool_name, + parent_image->image_name, + parent_image->image_id, + parent_snap->name); + return r; +} + +extern "C" int rbd_get_migration_source_spec(rbd_image_t image, + char* source_spec, + size_t* max_len) +{ + auto ictx = reinterpret_cast<librbd::ImageCtx*>(image); + + std::string cpp_source_spec; + int r = librbd::api::Migration<>::get_source_spec(ictx, &cpp_source_spec); + if (r < 0) { + return r; + } + + size_t expected_size = cpp_source_spec.size(); + if (expected_size >= *max_len) { + *max_len = expected_size + 1; + return -ERANGE; + } + + strncpy(source_spec, cpp_source_spec.c_str(), expected_size); + source_spec[expected_size] = '\0'; + *max_len = expected_size + 1; + + return 0; +} + +extern "C" int rbd_get_flags(rbd_image_t image, uint64_t *flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, get_flags_enter, ictx); + int r = librbd::get_flags(ictx, flags); + tracepoint(librbd, get_flags_exit, ictx, r, *flags); + return r; +} + +extern "C" int rbd_get_group(rbd_image_t image, rbd_group_info_t *group_info, + size_t group_info_size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, image_get_group_enter, ictx->name.c_str()); + + if (group_info_size != sizeof(rbd_group_info_t)) { + tracepoint(librbd, image_get_group_exit, -ERANGE); + return -ERANGE; + } + + librbd::group_info_t cpp_group_info; + int r = librbd::api::Group<>::image_get_group(ictx, &cpp_group_info); + if (r >= 0) { + group_info_cpp_to_c(cpp_group_info, group_info); + } else { + group_info->name = NULL; + } + + tracepoint(librbd, image_get_group_exit, r); + return r; +} + +extern "C" int rbd_set_image_notification(rbd_image_t image, int fd, int type) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, set_image_notification_enter, ictx, fd, type); + int r = librbd::set_image_notification(ictx, fd, type); + tracepoint(librbd, set_image_notification_exit, ictx, r); + return r; +} + +extern "C" int rbd_is_exclusive_lock_owner(rbd_image_t image, int *is_owner) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, is_exclusive_lock_owner_enter, ictx); + bool owner; + int r = librbd::is_exclusive_lock_owner(ictx, &owner); + *is_owner = owner ? 1 : 0; + tracepoint(librbd, is_exclusive_lock_owner_exit, ictx, r, *is_owner); + return r; +} + +extern "C" int rbd_lock_acquire(rbd_image_t image, rbd_lock_mode_t lock_mode) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, lock_acquire_enter, ictx, lock_mode); + int r = librbd::lock_acquire(ictx, lock_mode); + tracepoint(librbd, lock_acquire_exit, ictx, r); + return r; +} + +extern "C" int rbd_lock_release(rbd_image_t image) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, lock_release_enter, ictx); + int r = librbd::lock_release(ictx); + tracepoint(librbd, lock_release_exit, ictx, r); + return r; +} + +extern "C" int rbd_lock_get_owners(rbd_image_t image, + rbd_lock_mode_t *lock_mode, + char **lock_owners, + size_t *max_lock_owners) +{ + librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx*>(image); + tracepoint(librbd, lock_get_owners_enter, ictx); + // FIPS zeroization audit 20191117: this memset is not security related. + memset(lock_owners, 0, sizeof(*lock_owners) * *max_lock_owners); + std::list<std::string> lock_owner_list; + int r = librbd::lock_get_owners(ictx, lock_mode, &lock_owner_list); + if (r >= 0) { + if (*max_lock_owners >= lock_owner_list.size()) { + *max_lock_owners = 0; + for (auto &lock_owner : lock_owner_list) { + lock_owners[(*max_lock_owners)++] = strdup(lock_owner.c_str()); + } + } else { + *max_lock_owners = lock_owner_list.size(); + r = -ERANGE; + } + } + tracepoint(librbd, lock_get_owners_exit, ictx, r); + return r; +} + +extern "C" void rbd_lock_get_owners_cleanup(char **lock_owners, + size_t lock_owner_count) +{ + for (size_t i = 0; i < lock_owner_count; ++i) { + free(lock_owners[i]); + } +} + +extern "C" int rbd_lock_break(rbd_image_t image, rbd_lock_mode_t lock_mode, + const char *lock_owner) +{ + librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx*>(image); + tracepoint(librbd, lock_break_enter, ictx, lock_mode, lock_owner); + int r = librbd::lock_break(ictx, lock_mode, lock_owner); + tracepoint(librbd, lock_break_exit, ictx, r); + return r; +} + +extern "C" int rbd_rebuild_object_map(rbd_image_t image, + librbd_progress_fn_t cb, void *cbdata) +{ + librbd::ImageCtx *ictx = reinterpret_cast<librbd::ImageCtx*>(image); + librbd::CProgressContext prog_ctx(cb, cbdata); + return ictx->operations->rebuild_object_map(prog_ctx); +} + +/* snapshots */ +extern "C" int rbd_snap_create(rbd_image_t image, const char *snap_name) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_create_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + auto flags = librbd::util::get_default_snap_create_flags(ictx); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Snapshot<>::create(ictx, snap_name, flags, prog_ctx); + tracepoint(librbd, snap_create_exit, r); + return r; +} + +extern "C" int rbd_snap_create2(rbd_image_t image, const char *snap_name, + uint32_t flags, librbd_progress_fn_t cb, + void *cbdata) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_create_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = librbd::api::Snapshot<>::create(ictx, snap_name, flags, prog_ctx); + tracepoint(librbd, snap_create_exit, r); + return r; +} + +extern "C" int rbd_snap_rename(rbd_image_t image, const char *srcname, const char *dstname) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_rename_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, srcname, dstname); + int r = ictx->operations->snap_rename(srcname, dstname); + tracepoint(librbd, snap_rename_exit, r); + return r; +} + +extern "C" int rbd_snap_remove(rbd_image_t image, const char *snap_name) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_remove_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Snapshot<>::remove(ictx, snap_name, 0, prog_ctx); + tracepoint(librbd, snap_remove_exit, r); + return r; +} + +extern "C" int rbd_snap_remove2(rbd_image_t image, const char *snap_name, uint32_t flags, + librbd_progress_fn_t cb, void *cbdata) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_remove2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name, flags); + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = librbd::api::Snapshot<>::remove(ictx, snap_name, flags, prog_ctx); + tracepoint(librbd, snap_remove_exit, r); + return r; +} + +extern "C" int rbd_snap_remove_by_id(rbd_image_t image, uint64_t snap_id) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Snapshot<>::remove(ictx, snap_id); +} + +extern "C" int rbd_snap_rollback(rbd_image_t image, const char *snap_name) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + librbd::NoOpProgressContext prog_ctx; + int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx); + tracepoint(librbd, snap_rollback_exit, r); + return r; +} + +extern "C" int rbd_snap_rollback_with_progress(rbd_image_t image, + const char *snap_name, + librbd_progress_fn_t cb, + void *cbdata) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_rollback_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = ictx->operations->snap_rollback(cls::rbd::UserSnapshotNamespace(), snap_name, prog_ctx); + tracepoint(librbd, snap_rollback_exit, r); + return r; +} + +extern "C" int rbd_snap_list(rbd_image_t image, rbd_snap_info_t *snaps, + int *max_snaps) +{ + vector<librbd::snap_info_t> cpp_snaps; + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_list_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snaps); + + if (!max_snaps) { + tracepoint(librbd, snap_list_exit, -EINVAL, 0); + return -EINVAL; + } + // FIPS zeroization audit 20191117: this memset is not security related. + memset(snaps, 0, sizeof(*snaps) * *max_snaps); + + int r = librbd::api::Snapshot<>::list(ictx, cpp_snaps); + if (r == -ENOENT) { + tracepoint(librbd, snap_list_exit, 0, *max_snaps); + return 0; + } + if (r < 0) { + tracepoint(librbd, snap_list_exit, r, *max_snaps); + return r; + } + if (*max_snaps < (int)cpp_snaps.size() + 1) { + *max_snaps = (int)cpp_snaps.size() + 1; + tracepoint(librbd, snap_list_exit, -ERANGE, *max_snaps); + return -ERANGE; + } + + int i; + + for (i = 0; i < (int)cpp_snaps.size(); i++) { + snaps[i].id = cpp_snaps[i].id; + snaps[i].size = cpp_snaps[i].size; + snaps[i].name = strdup(cpp_snaps[i].name.c_str()); + if (!snaps[i].name) { + for (int j = 0; j < i; j++) + free((void *)snaps[j].name); + tracepoint(librbd, snap_list_exit, -ENOMEM, *max_snaps); + return -ENOMEM; + } + tracepoint(librbd, snap_list_entry, snaps[i].id, snaps[i].size, snaps[i].name); + } + snaps[i].id = 0; + snaps[i].size = 0; + snaps[i].name = NULL; + + r = (int)cpp_snaps.size(); + tracepoint(librbd, snap_list_exit, r, *max_snaps); + return r; +} + +extern "C" void rbd_snap_list_end(rbd_snap_info_t *snaps) +{ + tracepoint(librbd, snap_list_end_enter, snaps); + while (snaps->name) { + free((void *)snaps->name); + snaps++; + } + tracepoint(librbd, snap_list_end_exit); +} + +extern "C" int rbd_snap_protect(rbd_image_t image, const char *snap_name) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_protect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(), snap_name); + tracepoint(librbd, snap_protect_exit, r); + return r; +} + +extern "C" int rbd_snap_unprotect(rbd_image_t image, const char *snap_name) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_unprotect_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = ictx->operations->snap_unprotect(cls::rbd::UserSnapshotNamespace(), snap_name); + tracepoint(librbd, snap_unprotect_exit, r); + return r; +} + +extern "C" int rbd_snap_is_protected(rbd_image_t image, const char *snap_name, + int *is_protected) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_is_protected_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + bool protected_snap; + int r = librbd::api::Snapshot<>::is_protected(ictx, snap_name, &protected_snap); + if (r < 0) { + tracepoint(librbd, snap_is_protected_exit, r, *is_protected ? 1 : 0); + return r; + } + *is_protected = protected_snap ? 1 : 0; + tracepoint(librbd, snap_is_protected_exit, 0, *is_protected ? 1 : 0); + return 0; +} + +extern "C" int rbd_snap_get_limit(rbd_image_t image, uint64_t *limit) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_get_limit_enter, ictx, ictx->name.c_str()); + int r = librbd::api::Snapshot<>::get_limit(ictx, limit); + tracepoint(librbd, snap_get_limit_exit, r, *limit); + return r; +} + +extern "C" int rbd_snap_exists(rbd_image_t image, const char *snapname, bool *exists) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_exists_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, snapname); + int r = librbd::api::Snapshot<>::exists(ictx, cls::rbd::UserSnapshotNamespace(), snapname, exists); + tracepoint(librbd, snap_exists_exit, r, *exists); + return r; +} + +extern "C" int rbd_snap_get_timestamp(rbd_image_t image, uint64_t snap_id, struct timespec *timestamp) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_get_timestamp_enter, ictx, ictx->name.c_str()); + int r = librbd::api::Snapshot<>::get_timestamp(ictx, snap_id, timestamp); + tracepoint(librbd, snap_get_timestamp_exit, r); + return r; +} + +extern "C" int rbd_snap_set_limit(rbd_image_t image, uint64_t limit) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_set_limit_enter, ictx, ictx->name.c_str(), limit); + int r = librbd::api::Snapshot<>::set_limit(ictx, limit); + tracepoint(librbd, snap_set_limit_exit, r); + return r; +} + +extern "C" int rbd_snap_set(rbd_image_t image, const char *snap_name) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_set_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, snap_name); + int r = librbd::api::Image<>::snap_set( + ictx, cls::rbd::UserSnapshotNamespace(), snap_name); + tracepoint(librbd, snap_set_exit, r); + return r; +} + +extern "C" int rbd_snap_set_by_id(rbd_image_t image, uint64_t snap_id) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Image<>::snap_set(ictx, snap_id); +} + +extern "C" int rbd_snap_get_name(rbd_image_t image, uint64_t snap_id, char *snapname, size_t *name_len) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + std::string snap_name; + int r = librbd::api::Snapshot<>::get_name(ictx, snap_id, &snap_name); + size_t expected_size = snap_name.size(); + if (*name_len <= expected_size) { + *name_len = expected_size + 1; + return -ERANGE; + } + strncpy(snapname, snap_name.c_str(), expected_size); + snapname[expected_size] = '\0'; + *name_len = expected_size + 1; + return r; +} + +extern "C" int rbd_snap_get_id(rbd_image_t image, const char *snapname, uint64_t *snap_id) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Snapshot<>::get_id(ictx, snapname, snap_id); +} + +extern "C" ssize_t rbd_list_children(rbd_image_t image, char *pools, + size_t *pools_len, char *images, + size_t *images_len) +{ + auto ictx = reinterpret_cast<librbd::ImageCtx*>(image); + tracepoint(librbd, list_children_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + + std::vector<librbd::linked_image_spec_t> cpp_images; + int r = librbd::api::Image<>::list_children(ictx, &cpp_images); + if (r < 0) { + tracepoint(librbd, list_children_exit, r); + return r; + } + + std::set<std::pair<std::string, std::string>> image_set; + for (auto& image : cpp_images) { + if (!image.trash) { + image_set.insert({image.pool_name, image.image_name}); + } + } + + size_t pools_total = 0; + size_t images_total = 0; + for (auto it : image_set) { + pools_total += it.first.length() + 1; + images_total += it.second.length() + 1; + } + + bool too_short = false; + if (pools_total > *pools_len) + too_short = true; + if (images_total > *images_len) + too_short = true; + *pools_len = pools_total; + *images_len = images_total; + if (too_short) { + tracepoint(librbd, list_children_exit, -ERANGE); + return -ERANGE; + } + + char *pools_p = pools; + char *images_p = images; + for (auto it : image_set) { + const char* pool = it.first.c_str(); + strcpy(pools_p, pool); + pools_p += it.first.length() + 1; + const char* image = it.second.c_str(); + strcpy(images_p, image); + images_p += it.second.length() + 1; + tracepoint(librbd, list_children_entry, pool, image); + } + + ssize_t ret = image_set.size(); + tracepoint(librbd, list_children_exit, ret); + return ret; +} + +extern "C" int rbd_list_children2(rbd_image_t image, + rbd_child_info_t *children, + int *max_children) +{ + auto ictx = reinterpret_cast<librbd::ImageCtx*>(image); + tracepoint(librbd, list_children_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + // FIPS zeroization audit 20191117: this memset is not security related. + memset(children, 0, sizeof(*children) * *max_children); + + if (!max_children) { + tracepoint(librbd, list_children_exit, -EINVAL); + return -EINVAL; + } + + std::vector<librbd::linked_image_spec_t> cpp_children; + int r = librbd::api::Image<>::list_children(ictx, &cpp_children); + if (r < 0) { + tracepoint(librbd, list_children_exit, r); + return r; + } + + if (*max_children < (int)cpp_children.size() + 1) { + *max_children = (int)cpp_children.size() + 1; + tracepoint(librbd, list_children_exit, *max_children); + return -ERANGE; + } + + int i; + for (i = 0; i < (int)cpp_children.size(); i++) { + children[i].pool_name = strdup(cpp_children[i].pool_name.c_str()); + children[i].image_name = strdup(cpp_children[i].image_name.c_str()); + children[i].image_id = strdup(cpp_children[i].image_id.c_str()); + children[i].trash = cpp_children[i].trash; + tracepoint(librbd, list_children_entry, children[i].pool_name, + children[i].image_name); + } + children[i].pool_name = NULL; + children[i].image_name = NULL; + children[i].image_id = NULL; + + r = (int)cpp_children.size(); + tracepoint(librbd, list_children_exit, *max_children); + return r; +} + +extern "C" void rbd_list_child_cleanup(rbd_child_info_t *child) +{ + free((void *)child->pool_name); + free((void *)child->image_name); + free((void *)child->image_id); +} + +extern "C" void rbd_list_children_cleanup(rbd_child_info_t *children, + size_t num_children) +{ + for (size_t i=0; i < num_children; i++) { + free((void *)children[i].pool_name); + free((void *)children[i].image_name); + free((void *)children[i].image_id); + } +} + +extern "C" int rbd_list_children3(rbd_image_t image, + rbd_linked_image_spec_t *images, + size_t *max_images) +{ + auto ictx = reinterpret_cast<librbd::ImageCtx*>(image); + tracepoint(librbd, list_children_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only); + // FIPS zeroization audit 20191117: this memset is not security related. + memset(images, 0, sizeof(*images) * *max_images); + + std::vector<librbd::linked_image_spec_t> cpp_children; + int r = librbd::api::Image<>::list_children(ictx, &cpp_children); + if (r < 0) { + tracepoint(librbd, list_children_exit, r); + return r; + } + + if (*max_images < cpp_children.size()) { + *max_images = cpp_children.size(); + return -ERANGE; + } + + *max_images = cpp_children.size(); + for (size_t idx = 0; idx < cpp_children.size(); ++idx) { + images[idx] = { + .pool_id = cpp_children[idx].pool_id, + .pool_name = strdup(cpp_children[idx].pool_name.c_str()), + .pool_namespace = strdup(cpp_children[idx].pool_namespace.c_str()), + .image_id = strdup(cpp_children[idx].image_id.c_str()), + .image_name = strdup(cpp_children[idx].image_name.c_str()), + .trash = cpp_children[idx].trash}; + tracepoint(librbd, list_children_entry, images[idx].pool_name, + images[idx].image_name); + } + return 0; +} + +extern "C" int rbd_list_descendants(rbd_image_t image, + rbd_linked_image_spec_t *images, + size_t *max_images) +{ + auto ictx = reinterpret_cast<librbd::ImageCtx*>(image); + // FIPS zeroization audit 20191117: this memset is not security related. + memset(images, 0, sizeof(*images) * *max_images); + + std::vector<librbd::linked_image_spec_t> cpp_children; + int r = librbd::api::Image<>::list_descendants(ictx, {}, &cpp_children); + if (r < 0) { + return r; + } + + if (*max_images < cpp_children.size()) { + *max_images = cpp_children.size(); + return -ERANGE; + } + + *max_images = cpp_children.size(); + for (size_t idx = 0; idx < cpp_children.size(); ++idx) { + images[idx] = { + .pool_id = cpp_children[idx].pool_id, + .pool_name = strdup(cpp_children[idx].pool_name.c_str()), + .pool_namespace = strdup(cpp_children[idx].pool_namespace.c_str()), + .image_id = strdup(cpp_children[idx].image_id.c_str()), + .image_name = strdup(cpp_children[idx].image_name.c_str()), + .trash = cpp_children[idx].trash}; + } + return 0; +} + +extern "C" ssize_t rbd_list_lockers(rbd_image_t image, int *exclusive, + char *tag, size_t *tag_len, + char *clients, size_t *clients_len, + char *cookies, size_t *cookies_len, + char *addrs, size_t *addrs_len) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, list_lockers_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + std::list<librbd::locker_t> lockers; + bool exclusive_bool; + string tag_str; + + int r = list_lockers(ictx, &lockers, &exclusive_bool, &tag_str); + if (r < 0) { + tracepoint(librbd, list_lockers_exit, r); + return r; + } + + ldout(ictx->cct, 20) << "list_lockers r = " << r << " lockers.size() = " << lockers.size() << dendl; + + *exclusive = (int)exclusive_bool; + size_t clients_total = 0; + size_t cookies_total = 0; + size_t addrs_total = 0; + for (list<librbd::locker_t>::const_iterator it = lockers.begin(); + it != lockers.end(); ++it) { + clients_total += it->client.length() + 1; + cookies_total += it->cookie.length() + 1; + addrs_total += it->address.length() + 1; + } + + bool too_short = ((clients_total > *clients_len) || + (cookies_total > *cookies_len) || + (addrs_total > *addrs_len) || + (tag_str.length() + 1 > *tag_len)); + *clients_len = clients_total; + *cookies_len = cookies_total; + *addrs_len = addrs_total; + *tag_len = tag_str.length() + 1; + if (too_short) { + tracepoint(librbd, list_lockers_exit, -ERANGE); + return -ERANGE; + } + + strcpy(tag, tag_str.c_str()); + char *clients_p = clients; + char *cookies_p = cookies; + char *addrs_p = addrs; + for (list<librbd::locker_t>::const_iterator it = lockers.begin(); + it != lockers.end(); ++it) { + const char* client = it->client.c_str(); + strcpy(clients_p, client); + clients_p += it->client.length() + 1; + const char* cookie = it->cookie.c_str(); + strcpy(cookies_p, cookie); + cookies_p += it->cookie.length() + 1; + const char* address = it->address.c_str(); + strcpy(addrs_p, address); + addrs_p += it->address.length() + 1; + tracepoint(librbd, list_lockers_entry, client, cookie, address); + } + + ssize_t ret = lockers.size(); + tracepoint(librbd, list_lockers_exit, ret); + return ret; +} + +extern "C" int rbd_lock_exclusive(rbd_image_t image, const char *cookie) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, lock_exclusive_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie); + int r = librbd::lock(ictx, true, cookie ? cookie : "", ""); + tracepoint(librbd, lock_exclusive_exit, r); + return r; +} + +extern "C" int rbd_lock_shared(rbd_image_t image, const char *cookie, + const char *tag) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, lock_shared_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie, tag); + int r = librbd::lock(ictx, false, cookie ? cookie : "", tag ? tag : ""); + tracepoint(librbd, lock_shared_exit, r); + return r; +} + +extern "C" int rbd_unlock(rbd_image_t image, const char *cookie) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, unlock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, cookie); + int r = librbd::unlock(ictx, cookie ? cookie : ""); + tracepoint(librbd, unlock_exit, r); + return r; +} + +extern "C" int rbd_break_lock(rbd_image_t image, const char *client, + const char *cookie) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, break_lock_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, client, cookie); + int r = librbd::break_lock(ictx, client, cookie ? cookie : ""); + tracepoint(librbd, break_lock_exit, r); + return r; +} + +/* I/O */ +extern "C" ssize_t rbd_read(rbd_image_t image, uint64_t ofs, size_t len, + char *buf) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); + int r = librbd::api::Io<>::read( + *ictx, ofs, len, librbd::io::ReadResult{buf, len}, 0); + tracepoint(librbd, read_exit, r); + return r; +} + +extern "C" ssize_t rbd_read2(rbd_image_t image, uint64_t ofs, size_t len, + char *buf, int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, read2_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, ofs, len, op_flags); + int r = librbd::api::Io<>::read( + *ictx, ofs, len, librbd::io::ReadResult{buf, len}, op_flags); + tracepoint(librbd, read_exit, r); + return r; +} + + +extern "C" int64_t rbd_read_iterate(rbd_image_t image, uint64_t ofs, size_t len, + int (*cb)(uint64_t, size_t, const char *, void *), + void *arg) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, read_iterate_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); + int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg); + tracepoint(librbd, read_iterate_exit, r); + return r; +} + +extern "C" int rbd_read_iterate2(rbd_image_t image, uint64_t ofs, uint64_t len, + int (*cb)(uint64_t, size_t, const char *, void *), + void *arg) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, read_iterate2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len); + int64_t r = librbd::read_iterate(ictx, ofs, len, cb, arg); + if (r > 0) + r = 0; + tracepoint(librbd, read_iterate2_exit, r); + return (int)r; +} + +extern "C" int rbd_diff_iterate(rbd_image_t image, + const char *fromsnapname, + uint64_t ofs, uint64_t len, + int (*cb)(uint64_t, size_t, int, void *), + void *arg) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len, + true, false); + int r = librbd::api::DiffIterate<>::diff_iterate(ictx, + cls::rbd::UserSnapshotNamespace(), + fromsnapname, ofs, len, + true, false, cb, arg); + tracepoint(librbd, diff_iterate_exit, r); + return r; +} + +extern "C" int rbd_diff_iterate2(rbd_image_t image, const char *fromsnapname, + uint64_t ofs, uint64_t len, + uint8_t include_parent, uint8_t whole_object, + int (*cb)(uint64_t, size_t, int, void *), + void *arg) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, diff_iterate_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, fromsnapname, ofs, len, + include_parent != 0, whole_object != 0); + int r = librbd::api::DiffIterate<>::diff_iterate(ictx, + cls::rbd::UserSnapshotNamespace(), + fromsnapname, ofs, len, + include_parent, whole_object, + cb, arg); + tracepoint(librbd, diff_iterate_exit, r); + return r; +} + +extern "C" ssize_t rbd_write(rbd_image_t image, uint64_t ofs, size_t len, + const char *buf) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, ofs, len, buf); + + bufferlist bl; + bl.push_back(create_write_raw(ictx, buf, len, nullptr)); + int r = librbd::api::Io<>::write(*ictx, ofs, len, std::move(bl), 0); + tracepoint(librbd, write_exit, r); + return r; +} + +extern "C" ssize_t rbd_write2(rbd_image_t image, uint64_t ofs, size_t len, + const char *buf, int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, write2_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, ofs, len, buf, op_flags); + + bufferlist bl; + bl.push_back(create_write_raw(ictx, buf, len, nullptr)); + int r = librbd::api::Io<>::write(*ictx, ofs, len, std::move(bl), op_flags); + tracepoint(librbd, write_exit, r); + return r; +} + + +extern "C" int rbd_discard(rbd_image_t image, uint64_t ofs, uint64_t len) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, discard_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, ofs, len); + if (len > static_cast<uint64_t>(std::numeric_limits<int>::max())) { + tracepoint(librbd, discard_exit, -EINVAL); + return -EINVAL; + } + + int r = librbd::api::Io<>::discard( + *ictx, ofs, len, ictx->discard_granularity_bytes); + tracepoint(librbd, discard_exit, r); + return r; +} + +extern "C" ssize_t rbd_writesame(rbd_image_t image, uint64_t ofs, size_t len, + const char *buf, size_t data_len, int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, ofs, len, data_len == 0 ? NULL : buf, data_len, op_flags); + + if (data_len == 0 || len % data_len || + len > static_cast<uint64_t>(std::numeric_limits<int>::max())) { + tracepoint(librbd, writesame_exit, -EINVAL); + return -EINVAL; + } + + bool discard_zero = ictx->config.get_val<bool>("rbd_discard_on_zeroed_write_same"); + if (discard_zero && mem_is_zero(buf, data_len)) { + int r = librbd::api::Io<>::write_zeroes(*ictx, ofs, len, 0, op_flags); + tracepoint(librbd, writesame_exit, r); + return r; + } + + bufferlist bl; + bl.push_back(create_write_raw(ictx, buf, data_len, nullptr)); + int r = librbd::api::Io<>::write_same( + *ictx, ofs, len, std::move(bl), op_flags); + tracepoint(librbd, writesame_exit, r); + return r; +} + +extern "C" ssize_t rbd_write_zeroes(rbd_image_t image, uint64_t ofs, size_t len, + int zero_flags, int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Io<>::write_zeroes(*ictx, ofs, len, zero_flags, op_flags); +} + +extern "C" ssize_t rbd_compare_and_write(rbd_image_t image, + uint64_t ofs, size_t len, + const char *cmp_buf, + const char *buf, + uint64_t *mismatch_off, + int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, compare_and_write_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, ofs, + len, cmp_buf, buf, op_flags); + + bufferlist cmp_bl; + cmp_bl.push_back(create_write_raw(ictx, cmp_buf, len, nullptr)); + bufferlist bl; + bl.push_back(create_write_raw(ictx, buf, len, nullptr)); + + int r = librbd::api::Io<>::compare_and_write( + *ictx, ofs, len, std::move(cmp_bl), std::move(bl), mismatch_off, op_flags); + tracepoint(librbd, compare_and_write_exit, r); + return r; +} + +extern "C" int rbd_aio_create_completion(void *cb_arg, + rbd_callback_t complete_cb, + rbd_completion_t *c) +{ + librbd::RBD::AioCompletion *rbd_comp = + new librbd::RBD::AioCompletion(cb_arg, complete_cb); + *c = (rbd_completion_t) rbd_comp; + return 0; +} + +extern "C" int rbd_aio_write(rbd_image_t image, uint64_t off, size_t len, + const char *buf, rbd_completion_t c) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, buf, comp->pc); + + auto aio_completion = get_aio_completion(comp); + bufferlist bl; + bl.push_back(create_write_raw(ictx, buf, len, aio_completion)); + librbd::api::Io<>::aio_write( + *ictx, aio_completion, off, len, std::move(bl), 0, true); + tracepoint(librbd, aio_write_exit, 0); + return 0; +} + +extern "C" int rbd_aio_write2(rbd_image_t image, uint64_t off, size_t len, + const char *buf, rbd_completion_t c, int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_write2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, off, len, buf, comp->pc, op_flags); + + auto aio_completion = get_aio_completion(comp); + bufferlist bl; + bl.push_back(create_write_raw(ictx, buf, len, aio_completion)); + librbd::api::Io<>::aio_write( + *ictx, aio_completion, off, len, std::move(bl), op_flags, true); + tracepoint(librbd, aio_write_exit, 0); + return 0; +} + +extern "C" int rbd_aio_writev(rbd_image_t image, const struct iovec *iov, + int iovcnt, uint64_t off, rbd_completion_t c) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + + size_t len; + int r = get_iovec_length(iov, iovcnt, len); + + tracepoint(librbd, aio_write_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, off, len, NULL, + comp->pc); + + if (r == 0) { + auto aio_completion = get_aio_completion(comp); + auto bl = iovec_to_bufferlist(ictx, iov, iovcnt, aio_completion); + librbd::api::Io<>::aio_write( + *ictx, aio_completion, off, len, std::move(bl), 0, true); + } + tracepoint(librbd, aio_write_exit, r); + return r; +} + +extern "C" int rbd_aio_read(rbd_image_t image, uint64_t off, size_t len, + char *buf, rbd_completion_t c) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, buf, comp->pc); + librbd::api::Io<>::aio_read( + *ictx, get_aio_completion(comp), off, len, librbd::io::ReadResult{buf, len}, + 0, true); + tracepoint(librbd, aio_read_exit, 0); + return 0; +} + +extern "C" int rbd_aio_read2(rbd_image_t image, uint64_t off, size_t len, + char *buf, rbd_completion_t c, int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_read2_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, off, len, buf, comp->pc, op_flags); + librbd::api::Io<>::aio_read( + *ictx, get_aio_completion(comp), off, len, librbd::io::ReadResult{buf, len}, + op_flags, true); + tracepoint(librbd, aio_read_exit, 0); + return 0; +} + +extern "C" int rbd_aio_readv(rbd_image_t image, const struct iovec *iov, + int iovcnt, uint64_t off, rbd_completion_t c) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + + size_t len; + int r = get_iovec_length(iov, iovcnt, len); + + tracepoint(librbd, aio_read_enter, ictx, ictx->name.c_str(), + ictx->snap_name.c_str(), ictx->read_only, off, len, NULL, + comp->pc); + if (r == 0) { + librbd::io::ReadResult read_result; + if (iovcnt == 1) { + read_result = librbd::io::ReadResult( + static_cast<char *>(iov[0].iov_base), iov[0].iov_len); + } else { + read_result = librbd::io::ReadResult(iov, iovcnt); + } + librbd::api::Io<>::aio_read( + *ictx, get_aio_completion(comp), off, len, std::move(read_result), 0, + true); + } + tracepoint(librbd, aio_read_exit, r); + return r; +} + +extern "C" int rbd_flush(rbd_image_t image) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::api::Io<>::flush(*ictx); + tracepoint(librbd, flush_exit, r); + return r; +} + +extern "C" int rbd_aio_flush(rbd_image_t image, rbd_completion_t c) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_flush_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, comp->pc); + librbd::api::Io<>::aio_flush(*ictx, get_aio_completion(comp), true); + tracepoint(librbd, aio_flush_exit, 0); + return 0; +} + +extern "C" int rbd_aio_discard(rbd_image_t image, uint64_t off, uint64_t len, + rbd_completion_t c) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_discard_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only, off, len, comp->pc); + librbd::api::Io<>::aio_discard( + *ictx, get_aio_completion(comp), off, len, + ictx->discard_granularity_bytes, true); + tracepoint(librbd, aio_discard_exit, 0); + return 0; +} + +extern "C" int rbd_aio_writesame(rbd_image_t image, uint64_t off, size_t len, + const char *buf, size_t data_len, rbd_completion_t c, + int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_writesame_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, off, len, data_len == 0 ? NULL : buf, data_len, comp->pc, + op_flags); + + if (data_len == 0 || len % data_len) { + tracepoint(librbd, aio_writesame_exit, -EINVAL); + return -EINVAL; + } + + bool discard_zero = ictx->config.get_val<bool>("rbd_discard_on_zeroed_write_same"); + if (discard_zero && mem_is_zero(buf, data_len)) { + librbd::api::Io<>::aio_write_zeroes( + *ictx, get_aio_completion(comp), off, len, 0, op_flags, true); + tracepoint(librbd, aio_writesame_exit, 0); + return 0; + } + + auto aio_completion = get_aio_completion(comp); + bufferlist bl; + bl.push_back(create_write_raw(ictx, buf, data_len, aio_completion)); + librbd::api::Io<>::aio_write_same( + *ictx, aio_completion, off, len, std::move(bl), op_flags, true); + tracepoint(librbd, aio_writesame_exit, 0); + return 0; +} + +extern "C" int rbd_aio_write_zeroes(rbd_image_t image, uint64_t off, size_t len, + rbd_completion_t c, int zero_flags, + int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + + librbd::api::Io<>::aio_write_zeroes(*ictx, get_aio_completion(comp), off, len, + zero_flags, op_flags, true); + return 0; +} + +extern "C" ssize_t rbd_aio_compare_and_write(rbd_image_t image, uint64_t off, + size_t len, const char *cmp_buf, + const char *buf, rbd_completion_t c, + uint64_t *mismatch_off, + int op_flags) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + tracepoint(librbd, aio_compare_and_write_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), + ictx->read_only, off, len, cmp_buf, buf, comp->pc, op_flags); + + auto aio_completion = get_aio_completion(comp); + bufferlist cmp_bl; + cmp_bl.push_back(create_write_raw(ictx, cmp_buf, len, aio_completion)); + bufferlist bl; + bl.push_back(create_write_raw(ictx, buf, len, aio_completion)); + librbd::api::Io<>::aio_compare_and_write( + *ictx, aio_completion, off, len, std::move(cmp_bl), std::move(bl), + mismatch_off, op_flags, false); + + tracepoint(librbd, aio_compare_and_write_exit, 0); + return 0; +} + +extern "C" int rbd_invalidate_cache(rbd_image_t image) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, invalidate_cache_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + int r = librbd::invalidate_cache(ictx); + tracepoint(librbd, invalidate_cache_exit, r); + return r; +} + +extern "C" int rbd_poll_io_events(rbd_image_t image, rbd_completion_t *comps, int numcomp) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::io::AioCompletion *cs[numcomp]; + tracepoint(librbd, poll_io_events_enter, ictx, numcomp); + int r = librbd::poll_io_events(ictx, cs, numcomp); + tracepoint(librbd, poll_io_events_exit, r); + if (r > 0) { + for (int i = 0; i < r; ++i) + comps[i] = cs[i]->rbd_comp; + } + return r; +} + +extern "C" int rbd_metadata_get(rbd_image_t image, const char *key, char *value, size_t *vallen) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + string val_s; + tracepoint(librbd, metadata_get_enter, ictx, key); + int r = librbd::metadata_get(ictx, key, &val_s); + if (r < 0) { + tracepoint(librbd, metadata_get_exit, r, key, NULL); + return r; + } + if (*vallen < val_s.size() + 1) { + r = -ERANGE; + *vallen = val_s.size() + 1; + tracepoint(librbd, metadata_get_exit, r, key, NULL); + } else { + strncpy(value, val_s.c_str(), val_s.size() + 1); + tracepoint(librbd, metadata_get_exit, r, key, value); + } + return r; +} + +extern "C" int rbd_metadata_set(rbd_image_t image, const char *key, const char *value) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, metadata_set_enter, ictx, key, value); + int r = ictx->operations->metadata_set(key, value); + tracepoint(librbd, metadata_set_exit, r); + return r; +} + +extern "C" int rbd_metadata_remove(rbd_image_t image, const char *key) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, metadata_remove_enter, ictx, key); + int r = ictx->operations->metadata_remove(key); + tracepoint(librbd, metadata_remove_exit, r); + return r; +} + +extern "C" int rbd_metadata_list(rbd_image_t image, const char *start, uint64_t max, + char *key, size_t *key_len, char *value, size_t *val_len) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, metadata_list_enter, ictx); + map<string, bufferlist> pairs; + int r = librbd::metadata_list(ictx, start, max, &pairs); + size_t key_total_len = 0, val_total_len = 0; + bool too_short = false; + for (map<string, bufferlist>::iterator it = pairs.begin(); + it != pairs.end(); ++it) { + key_total_len += it->first.size() + 1; + val_total_len += it->second.length() + 1; + } + if (*key_len < key_total_len || *val_len < val_total_len) + too_short = true; + *key_len = key_total_len; + *val_len = val_total_len; + if (too_short) { + tracepoint(librbd, metadata_list_exit, -ERANGE); + return -ERANGE; + } + + char *key_p = key, *value_p = value; + + for (map<string, bufferlist>::iterator it = pairs.begin(); + it != pairs.end(); ++it) { + strncpy(key_p, it->first.c_str(), it->first.size() + 1); + key_p += it->first.size() + 1; + strncpy(value_p, it->second.c_str(), it->second.length()); + value_p += it->second.length(); + *value_p = '\0'; + value_p++; + tracepoint(librbd, metadata_list_entry, it->first.c_str(), it->second.c_str()); + } + tracepoint(librbd, metadata_list_exit, r); + return r; +} + +extern "C" int rbd_mirror_image_enable(rbd_image_t image) +{ + return rbd_mirror_image_enable2(image, RBD_MIRROR_IMAGE_MODE_JOURNAL); +} + +extern "C" int rbd_mirror_image_enable2(rbd_image_t image, + rbd_mirror_image_mode_t mode) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Mirror<>::image_enable(ictx, mode, false); +} + +extern "C" int rbd_mirror_image_disable(rbd_image_t image, bool force) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Mirror<>::image_disable(ictx, force); +} + +extern "C" int rbd_mirror_image_promote(rbd_image_t image, bool force) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Mirror<>::image_promote(ictx, force); +} + +extern "C" int rbd_mirror_image_demote(rbd_image_t image) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Mirror<>::image_demote(ictx); +} + +extern "C" int rbd_mirror_image_resync(rbd_image_t image) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Mirror<>::image_resync(ictx); +} + +extern "C" int rbd_mirror_image_create_snapshot(rbd_image_t image, + uint64_t *snap_id) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + auto flags = librbd::util::get_default_snap_create_flags(ictx); + return librbd::api::Mirror<>::image_snapshot_create(ictx, flags, snap_id); +} + +extern "C" int rbd_mirror_image_create_snapshot2(rbd_image_t image, + uint32_t flags, + uint64_t *snap_id) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + return librbd::api::Mirror<>::image_snapshot_create(ictx, flags, snap_id); +} + +extern "C" int rbd_mirror_image_get_info(rbd_image_t image, + rbd_mirror_image_info_t *mirror_image_info, + size_t info_size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + + if (sizeof(rbd_mirror_image_info_t) != info_size) { + return -ERANGE; + } + + librbd::mirror_image_info_t cpp_mirror_image; + int r = librbd::api::Mirror<>::image_get_info(ictx, &cpp_mirror_image); + if (r < 0) { + return r; + } + + mirror_image_info_cpp_to_c(cpp_mirror_image, mirror_image_info); + return 0; +} + +extern "C" void rbd_mirror_image_get_info_cleanup( + rbd_mirror_image_info_t *mirror_image_info) +{ + free(mirror_image_info->global_id); +} + +extern "C" int rbd_mirror_image_get_mode(rbd_image_t image, + rbd_mirror_image_mode_t *mode) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + + return librbd::api::Mirror<>::image_get_mode(ictx, mode); +} + +extern "C" int rbd_mirror_image_get_global_status( + rbd_image_t image, rbd_mirror_image_global_status_t *status, + size_t status_size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + + if (sizeof(rbd_mirror_image_global_status_t) != status_size) { + return -ERANGE; + } + + librbd::mirror_image_global_status_t cpp_status; + int r = librbd::api::Mirror<>::image_get_global_status(ictx, &cpp_status); + if (r < 0) { + return r; + } + + mirror_image_global_status_cpp_to_c(cpp_status, status); + return 0; +} + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + +extern "C" int rbd_mirror_image_get_status(rbd_image_t image, + rbd_mirror_image_status_t *status, + size_t status_size) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + + if (sizeof(rbd_mirror_image_status_t) != status_size) { + return -ERANGE; + } + + librbd::mirror_image_global_status_t cpp_status; + int r = librbd::api::Mirror<>::image_get_global_status(ictx, &cpp_status); + if (r < 0) { + return r; + } + + mirror_image_global_status_cpp_to_c(cpp_status, status); + return 0; +} + +#pragma GCC diagnostic pop + +extern "C" int rbd_mirror_image_get_instance_id(rbd_image_t image, + char *instance_id, + size_t *instance_id_max_length) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + + std::string cpp_instance_id; + int r = librbd::api::Mirror<>::image_get_instance_id(ictx, &cpp_instance_id); + if (r < 0) { + return r; + } + + if (cpp_instance_id.size() >= *instance_id_max_length) { + *instance_id_max_length = cpp_instance_id.size() + 1; + return -ERANGE; + } + + strcpy(instance_id, cpp_instance_id.c_str()); + *instance_id_max_length = cpp_instance_id.size() + 1; + return 0; +} + +extern "C" int rbd_aio_mirror_image_promote(rbd_image_t image, bool force, + rbd_completion_t c) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + librbd::api::Mirror<>::image_promote( + ictx, force, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(comp))); + return 0; +} + +extern "C" int rbd_aio_mirror_image_demote(rbd_image_t image, + rbd_completion_t c) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + librbd::api::Mirror<>::image_demote( + ictx, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(comp))); + return 0; +} + +extern "C" int rbd_aio_mirror_image_get_info(rbd_image_t image, + rbd_mirror_image_info_t *info, + size_t info_size, + rbd_completion_t c) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + + if (sizeof(rbd_mirror_image_info_t) != info_size) { + return -ERANGE; + } + + auto ctx = new C_MirrorImageGetInfo( + info, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(comp))); + librbd::api::Mirror<>::image_get_info( + ictx, &ctx->cpp_mirror_image_info, ctx); + return 0; +} + +extern "C" int rbd_aio_mirror_image_get_mode(rbd_image_t image, + rbd_mirror_image_mode_t *mode, + rbd_completion_t c) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + + librbd::api::Mirror<>::image_get_mode( + ictx, mode, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(comp))); + return 0; +} + +extern "C" int rbd_aio_mirror_image_get_global_status( + rbd_image_t image, rbd_mirror_image_global_status_t *status, + size_t status_size, rbd_completion_t c) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + + if (sizeof(rbd_mirror_image_global_status_t) != status_size) { + return -ERANGE; + } + + auto ctx = new C_MirrorImageGetGlobalStatus( + status, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(comp))); + librbd::api::Mirror<>::image_get_global_status( + ictx, &ctx->cpp_mirror_image_global_status, ctx); + return 0; +} + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + +extern "C" int rbd_aio_mirror_image_get_status( + rbd_image_t image, rbd_mirror_image_status_t *status, size_t status_size, + rbd_completion_t c) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + + if (sizeof(rbd_mirror_image_status_t) != status_size) { + return -ERANGE; + } + + auto ctx = new C_MirrorImageGetStatus( + status, new C_AioCompletion(ictx, librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(comp))); + librbd::api::Mirror<>::image_get_global_status( + ictx, &ctx->cpp_mirror_image_global_status, ctx); + return 0; +} + +#pragma GCC diagnostic pop + +extern "C" int rbd_aio_mirror_image_create_snapshot(rbd_image_t image, + uint32_t flags, + uint64_t *snap_id, + rbd_completion_t c) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + + librbd::api::Mirror<>::image_snapshot_create( + ictx, flags, snap_id, new C_AioCompletion(ictx, + librbd::io::AIO_TYPE_GENERIC, + get_aio_completion(comp))); + return 0; +} + +extern "C" int rbd_update_watch(rbd_image_t image, uint64_t *handle, + rbd_update_callback_t watch_cb, void *arg) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + C_UpdateWatchCB *wctx = new C_UpdateWatchCB(watch_cb, arg); + tracepoint(librbd, update_watch_enter, ictx, wctx); + int r = ictx->state->register_update_watcher(wctx, &wctx->handle); + tracepoint(librbd, update_watch_exit, r, wctx->handle); + *handle = reinterpret_cast<uint64_t>(wctx); + return r; +} + +extern "C" int rbd_update_unwatch(rbd_image_t image, uint64_t handle) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + C_UpdateWatchCB *wctx = reinterpret_cast<C_UpdateWatchCB *>(handle); + tracepoint(librbd, update_unwatch_enter, ictx, wctx->handle); + int r = ictx->state->unregister_update_watcher(wctx->handle); + delete wctx; + tracepoint(librbd, update_unwatch_exit, r); + return r; +} + +extern "C" int rbd_aio_is_complete(rbd_completion_t c) +{ + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + return comp->is_complete(); +} + +extern "C" int rbd_aio_wait_for_complete(rbd_completion_t c) +{ + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + return comp->wait_for_complete(); +} + +extern "C" ssize_t rbd_aio_get_return_value(rbd_completion_t c) +{ + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + return comp->get_return_value(); +} + +extern "C" void *rbd_aio_get_arg(rbd_completion_t c) +{ + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + return comp->get_arg(); +} + +extern "C" void rbd_aio_release(rbd_completion_t c) +{ + librbd::RBD::AioCompletion *comp = (librbd::RBD::AioCompletion *)c; + comp->release(); +} + +extern "C" int rbd_group_create(rados_ioctx_t p, const char *name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, group_create_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), name); + int r = librbd::api::Group<>::create(io_ctx, name); + tracepoint(librbd, group_create_exit, r); + return r; +} + +extern "C" int rbd_group_remove(rados_ioctx_t p, const char *name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, group_remove_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), name); + int r = librbd::api::Group<>::remove(io_ctx, name); + tracepoint(librbd, group_remove_exit, r); + return r; +} + +extern "C" int rbd_group_list(rados_ioctx_t p, char *names, size_t *size) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, group_list_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id()); + + vector<string> cpp_names; + int r = librbd::api::Group<>::list(io_ctx, &cpp_names); + + if (r < 0) { + tracepoint(librbd, group_list_exit, r); + return r; + } + + size_t expected_size = 0; + + for (size_t i = 0; i < cpp_names.size(); i++) { + expected_size += cpp_names[i].size() + 1; + } + if (*size < expected_size) { + *size = expected_size; + tracepoint(librbd, group_list_exit, -ERANGE); + return -ERANGE; + } + + if (names == NULL) { + tracepoint(librbd, group_list_exit, -EINVAL); + return -EINVAL; + } + + for (int i = 0; i < (int)cpp_names.size(); i++) { + const char* name = cpp_names[i].c_str(); + tracepoint(librbd, group_list_entry, name); + strcpy(names, name); + names += strlen(names) + 1; + } + tracepoint(librbd, group_list_exit, (int)expected_size); + return (int)expected_size; +} + +extern "C" int rbd_group_rename(rados_ioctx_t p, const char *src_name, + const char *dest_name) +{ + librados::IoCtx io_ctx; + librados::IoCtx::from_rados_ioctx_t(p, io_ctx); + TracepointProvider::initialize<tracepoint_traits>(get_cct(io_ctx)); + tracepoint(librbd, group_rename_enter, io_ctx.get_pool_name().c_str(), + io_ctx.get_id(), src_name, dest_name); + int r = librbd::api::Group<>::rename(io_ctx, src_name, dest_name); + tracepoint(librbd, group_rename_exit, r); + return r; +} + +extern "C" int rbd_group_image_add(rados_ioctx_t group_p, + const char *group_name, + rados_ioctx_t image_p, + const char *image_name) +{ + librados::IoCtx group_ioctx; + librados::IoCtx image_ioctx; + + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + librados::IoCtx::from_rados_ioctx_t(image_p, image_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_image_add_enter, group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, image_ioctx.get_pool_name().c_str(), + image_ioctx.get_id(), image_name); + + int r = librbd::api::Group<>::image_add(group_ioctx, group_name, image_ioctx, + image_name); + + tracepoint(librbd, group_image_add_exit, r); + return r; +} + +extern "C" int rbd_group_image_remove(rados_ioctx_t group_p, + const char *group_name, + rados_ioctx_t image_p, + const char *image_name) +{ + librados::IoCtx group_ioctx; + librados::IoCtx image_ioctx; + + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + librados::IoCtx::from_rados_ioctx_t(image_p, image_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_image_remove_enter, group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, image_ioctx.get_pool_name().c_str(), + image_ioctx.get_id(), image_name); + + int r = librbd::api::Group<>::image_remove(group_ioctx, group_name, + image_ioctx, image_name); + + tracepoint(librbd, group_image_remove_exit, r); + return r; +} + +extern "C" int rbd_group_image_remove_by_id(rados_ioctx_t group_p, + const char *group_name, + rados_ioctx_t image_p, + const char *image_id) +{ + librados::IoCtx group_ioctx; + librados::IoCtx image_ioctx; + + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + librados::IoCtx::from_rados_ioctx_t(image_p, image_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_image_remove_by_id_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, + image_ioctx.get_pool_name().c_str(), + image_ioctx.get_id(), image_id); + + int r = librbd::api::Group<>::image_remove_by_id(group_ioctx, group_name, + image_ioctx, image_id); + + tracepoint(librbd, group_image_remove_by_id_exit, r); + return r; +} + +extern "C" int rbd_group_image_list(rados_ioctx_t group_p, + const char *group_name, + rbd_group_image_info_t *images, + size_t group_image_info_size, + size_t *image_size) +{ + librados::IoCtx group_ioctx; + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_image_list_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name); + // FIPS zeroization audit 20191117: this memset is not security related. + memset(images, 0, sizeof(*images) * *image_size); + + if (group_image_info_size != sizeof(rbd_group_image_info_t)) { + *image_size = 0; + tracepoint(librbd, group_image_list_exit, -ERANGE); + return -ERANGE; + } + + std::vector<librbd::group_image_info_t> cpp_images; + int r = librbd::api::Group<>::image_list(group_ioctx, group_name, + &cpp_images); + + if (r == -ENOENT) { + tracepoint(librbd, group_image_list_exit, 0); + *image_size = 0; + return 0; + } + + if (r < 0) { + tracepoint(librbd, group_image_list_exit, r); + return r; + } + + if (*image_size < cpp_images.size()) { + *image_size = cpp_images.size(); + tracepoint(librbd, group_image_list_exit, -ERANGE); + return -ERANGE; + } + + for (size_t i = 0; i < cpp_images.size(); ++i) { + group_image_status_cpp_to_c(cpp_images[i], &images[i]); + } + + r = *image_size = cpp_images.size(); + tracepoint(librbd, group_image_list_exit, r); + return r; +} + +extern "C" int rbd_group_info_cleanup(rbd_group_info_t *group_info, + size_t group_info_size) { + if (group_info_size != sizeof(rbd_group_info_t)) { + return -ERANGE; + } + + free(group_info->name); + return 0; +} + +extern "C" int rbd_group_image_list_cleanup(rbd_group_image_info_t *images, + size_t group_image_info_size, + size_t len) { + if (group_image_info_size != sizeof(rbd_group_image_info_t)) { + return -ERANGE; + } + + for (size_t i = 0; i < len; ++i) { + free(images[i].name); + } + return 0; +} + +extern "C" int rbd_group_snap_create(rados_ioctx_t group_p, + const char *group_name, + const char *snap_name) +{ + librados::IoCtx group_ioctx; + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_create_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + + int r = librbd::api::Group<>::snap_create(group_ioctx, group_name, + snap_name, 0); + tracepoint(librbd, group_snap_create_exit, r); + + return r; +} + +extern "C" int rbd_group_snap_create2(rados_ioctx_t group_p, + const char *group_name, + const char *snap_name, + uint32_t flags) +{ + librados::IoCtx group_ioctx; + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_create_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + + int r = librbd::api::Group<>::snap_create(group_ioctx, group_name, snap_name, + flags); + tracepoint(librbd, group_snap_create_exit, r); + + return r; +} + +extern "C" int rbd_group_snap_remove(rados_ioctx_t group_p, + const char *group_name, + const char *snap_name) +{ + librados::IoCtx group_ioctx; + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_remove_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + + int r = librbd::api::Group<>::snap_remove(group_ioctx, group_name, snap_name); + + tracepoint(librbd, group_snap_remove_exit, r); + + return r; +} + +extern "C" int rbd_group_snap_rename(rados_ioctx_t group_p, + const char *group_name, + const char *old_snap_name, + const char *new_snap_name) +{ + librados::IoCtx group_ioctx; + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_rename_enter, + group_ioctx.get_pool_name().c_str(), group_ioctx.get_id(), + group_name, old_snap_name, new_snap_name); + + int r = librbd::api::Group<>::snap_rename(group_ioctx, group_name, + old_snap_name, new_snap_name); + + tracepoint(librbd, group_snap_list_exit, r); + return r; +} + +extern "C" int rbd_group_snap_list(rados_ioctx_t group_p, + const char *group_name, + rbd_group_snap_info_t *snaps, + size_t group_snap_info_size, + size_t *snaps_size) +{ + librados::IoCtx group_ioctx; + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_list_enter, group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name); + // FIPS zeroization audit 20191117: this memset is not security related. + memset(snaps, 0, sizeof(*snaps) * *snaps_size); + + if (group_snap_info_size != sizeof(rbd_group_snap_info_t)) { + *snaps_size = 0; + tracepoint(librbd, group_snap_list_exit, -ERANGE); + return -ERANGE; + } + + std::vector<librbd::group_snap_info_t> cpp_snaps; + int r = librbd::api::Group<>::snap_list(group_ioctx, group_name, &cpp_snaps); + + if (r == -ENOENT) { + *snaps_size = 0; + tracepoint(librbd, group_snap_list_exit, 0); + return 0; + } + + if (r < 0) { + tracepoint(librbd, group_snap_list_exit, r); + return r; + } + + if (*snaps_size < cpp_snaps.size()) { + *snaps_size = cpp_snaps.size(); + tracepoint(librbd, group_snap_list_exit, -ERANGE); + return -ERANGE; + } + + for (size_t i = 0; i < cpp_snaps.size(); ++i) { + group_snap_info_cpp_to_c(cpp_snaps[i], &snaps[i]); + } + + r = *snaps_size = cpp_snaps.size(); + tracepoint(librbd, group_snap_list_exit, r); + return r; +} + +extern "C" int rbd_group_snap_list_cleanup(rbd_group_snap_info_t *snaps, + size_t group_snap_info_size, + size_t len) { + if (group_snap_info_size != sizeof(rbd_group_snap_info_t)) { + return -ERANGE; + } + + for (size_t i = 0; i < len; ++i) { + free(snaps[i].name); + } + return 0; +} + +extern "C" int rbd_group_snap_rollback(rados_ioctx_t group_p, + const char *group_name, + const char *snap_name) +{ + librados::IoCtx group_ioctx; + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_rollback_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + + librbd::NoOpProgressContext prog_ctx; + int r = librbd::api::Group<>::snap_rollback(group_ioctx, group_name, + snap_name, prog_ctx); + + tracepoint(librbd, group_snap_rollback_exit, r); + + return r; +} + +extern "C" int rbd_group_snap_rollback_with_progress(rados_ioctx_t group_p, + const char *group_name, + const char *snap_name, + librbd_progress_fn_t cb, + void *cbdata) +{ + librados::IoCtx group_ioctx; + librados::IoCtx::from_rados_ioctx_t(group_p, group_ioctx); + + TracepointProvider::initialize<tracepoint_traits>(get_cct(group_ioctx)); + tracepoint(librbd, group_snap_rollback_enter, + group_ioctx.get_pool_name().c_str(), + group_ioctx.get_id(), group_name, snap_name); + + librbd::CProgressContext prog_ctx(cb, cbdata); + int r = librbd::api::Group<>::snap_rollback(group_ioctx, group_name, + snap_name, prog_ctx); + + tracepoint(librbd, group_snap_rollback_exit, r); + + return r; +} + +extern "C" int rbd_snap_get_namespace_type(rbd_image_t image, + uint64_t snap_id, + rbd_snap_namespace_type_t *namespace_type) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_get_namespace_type_enter, ictx, ictx->name.c_str()); + int r = librbd::api::Snapshot<>::get_namespace_type(ictx, snap_id, + namespace_type); + tracepoint(librbd, snap_get_namespace_type_exit, r); + return r; +} + +extern "C" int rbd_snap_get_group_namespace(rbd_image_t image, uint64_t snap_id, + rbd_snap_group_namespace_t *group_snap, + size_t snap_group_namespace_size) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + tracepoint(librbd, snap_get_group_namespace_enter, ictx, + ictx->name.c_str()); + + if (snap_group_namespace_size != sizeof(rbd_snap_group_namespace_t)) { + tracepoint(librbd, snap_get_group_namespace_exit, -ERANGE); + return -ERANGE; + } + + librbd::snap_group_namespace_t group_namespace; + int r = librbd::api::Snapshot<>::get_group_namespace(ictx, snap_id, + &group_namespace); + if (r >= 0) { + group_snap->group_pool = group_namespace.group_pool; + group_snap->group_name = strdup(group_namespace.group_name.c_str()); + group_snap->group_snap_name = + strdup(group_namespace.group_snap_name.c_str()); + } + + tracepoint(librbd, snap_get_group_namespace_exit, r); + return r; +} + +extern "C" int rbd_snap_group_namespace_cleanup(rbd_snap_group_namespace_t *group_snap, + size_t snap_group_namespace_size) { + if (snap_group_namespace_size != sizeof(rbd_snap_group_namespace_t)) { + return -ERANGE; + } + + free(group_snap->group_name); + free(group_snap->group_snap_name); + return 0; +} + +extern "C" int rbd_snap_get_trash_namespace(rbd_image_t image, uint64_t snap_id, + char *original_name, + size_t max_length) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + + std::string cpp_original_name; + int r = librbd::api::Snapshot<>::get_trash_namespace(ictx, snap_id, + &cpp_original_name); + if (r < 0) { + return r; + } + + if (cpp_original_name.length() >= max_length) { + return -ERANGE; + } + + strcpy(original_name, cpp_original_name.c_str()); + return 0; +} + +extern "C" int rbd_snap_get_mirror_namespace( + rbd_image_t image, uint64_t snap_id, + rbd_snap_mirror_namespace_t *mirror_snap, + size_t mirror_snap_size) { + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + + if (mirror_snap_size != sizeof(rbd_snap_mirror_namespace_t)) { + return -ERANGE; + } + + librbd::snap_mirror_namespace_t mirror_namespace; + int r = librbd::api::Snapshot<>::get_mirror_namespace( + ictx, snap_id, &mirror_namespace); + if (r < 0) { + return r; + } + + mirror_snap->state = mirror_namespace.state; + mirror_snap->primary_mirror_uuid = + strdup(mirror_namespace.primary_mirror_uuid.c_str()); + mirror_snap->primary_snap_id = mirror_namespace.primary_snap_id; + mirror_snap->mirror_peer_uuids_count = + mirror_namespace.mirror_peer_uuids.size(); + size_t len = 0; + for (auto &peer : mirror_namespace.mirror_peer_uuids) { + len += peer.size() + 1; + } + mirror_snap->mirror_peer_uuids = (char *)malloc(len); + char *p = mirror_snap->mirror_peer_uuids; + for (auto &peer : mirror_namespace.mirror_peer_uuids) { + strncpy(p, peer.c_str(), peer.size() + 1); + p += peer.size() + 1; + } + mirror_snap->complete = mirror_namespace.complete; + mirror_snap->last_copied_object_number = + mirror_namespace.last_copied_object_number; + + return 0; +} + +extern "C" int rbd_snap_mirror_namespace_cleanup( + rbd_snap_mirror_namespace_t *mirror_snap, + size_t mirror_snap_size) { + if (mirror_snap_size != sizeof(rbd_snap_mirror_namespace_t)) { + return -ERANGE; + } + + free(mirror_snap->primary_mirror_uuid); + free(mirror_snap->mirror_peer_uuids); + return 0; +} + +extern "C" int rbd_watchers_list(rbd_image_t image, + rbd_image_watcher_t *watchers, + size_t *max_watchers) { + std::list<librbd::image_watcher_t> watcher_list; + librbd::ImageCtx *ictx = (librbd::ImageCtx*)image; + + tracepoint(librbd, list_watchers_enter, ictx, ictx->name.c_str(), ictx->snap_name.c_str(), ictx->read_only); + // FIPS zeroization audit 20191117: this memset is not security related. + memset(watchers, 0, sizeof(*watchers) * *max_watchers); + int r = librbd::list_watchers(ictx, watcher_list); + if (r < 0) { + tracepoint(librbd, list_watchers_exit, r, 0); + return r; + } + + if (watcher_list.size() > *max_watchers) { + *max_watchers = watcher_list.size(); + tracepoint(librbd, list_watchers_exit, -ERANGE, watcher_list.size()); + return -ERANGE; + } + + *max_watchers = 0; + for (auto &watcher : watcher_list) { + tracepoint(librbd, list_watchers_entry, watcher.addr.c_str(), watcher.id, watcher.cookie); + watchers[*max_watchers].addr = strdup(watcher.addr.c_str()); + watchers[*max_watchers].id = watcher.id; + watchers[*max_watchers].cookie = watcher.cookie; + *max_watchers += 1; + } + + tracepoint(librbd, list_watchers_exit, r, watcher_list.size()); + return 0; +} + +extern "C" void rbd_watchers_list_cleanup(rbd_image_watcher_t *watchers, + size_t num_watchers) { + for (size_t i = 0; i < num_watchers; ++i) { + free(watchers[i].addr); + } +} + +extern "C" int rbd_config_image_list(rbd_image_t image, + rbd_config_option_t *options, + int *max_options) { + librbd::ImageCtx *ictx = (librbd::ImageCtx*)image; + + std::vector<librbd::config_option_t> option_vector; + int r = librbd::api::Config<>::list(ictx, &option_vector); + if (r < 0) { + return r; + } + + if (*max_options < static_cast<int>(option_vector.size())) { + *max_options = static_cast<int>(option_vector.size()); + return -ERANGE; + } + + for (int i = 0; i < static_cast<int>(option_vector.size()); ++i) { + config_option_cpp_to_c(option_vector[i], &options[i]); + } + *max_options = static_cast<int>(option_vector.size()); + return 0; +} + +extern "C" void rbd_config_image_list_cleanup(rbd_config_option_t *options, + int max_options) { + for (int i = 0; i < max_options; ++i) { + config_option_cleanup(options[i]); + } +} + +extern "C" int rbd_quiesce_watch(rbd_image_t image, + rbd_update_callback_t quiesce_cb, + rbd_update_callback_t unquiesce_cb, + void *arg, uint64_t *handle) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + auto wctx = new C_QuiesceWatchCB(quiesce_cb, unquiesce_cb, arg); + int r = ictx->state->register_quiesce_watcher(wctx, &wctx->handle); + if (r < 0) { + delete wctx; + return r; + } + *handle = reinterpret_cast<uint64_t>(wctx); + return 0; +} + +extern "C" int rbd_quiesce_unwatch(rbd_image_t image, uint64_t handle) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + auto *wctx = reinterpret_cast<C_QuiesceWatchCB *>(handle); + int r = ictx->state->unregister_quiesce_watcher(wctx->handle); + delete wctx; + return r; +} + +extern "C" void rbd_quiesce_complete(rbd_image_t image, uint64_t handle, int r) +{ + librbd::ImageCtx *ictx = (librbd::ImageCtx *)image; + ictx->state->quiesce_complete(handle, r); +} |