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-rw-r--r--src/mon/FSCommands.cc1516
1 files changed, 1516 insertions, 0 deletions
diff --git a/src/mon/FSCommands.cc b/src/mon/FSCommands.cc
new file mode 100644
index 000000000..0b1bb2a03
--- /dev/null
+++ b/src/mon/FSCommands.cc
@@ -0,0 +1,1516 @@
+// -*- 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) 2017 Red Hat Ltd
+ *
+ * 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 "OSDMonitor.h"
+
+#include "FSCommands.h"
+#include "MDSMonitor.h"
+#include "MgrStatMonitor.h"
+#include "mds/cephfs_features.h"
+
+using TOPNSPC::common::cmd_getval;
+
+using std::dec;
+using std::hex;
+using std::list;
+using std::map;
+using std::make_pair;
+using std::pair;
+using std::set;
+using std::string;
+using std::to_string;
+using std::vector;
+
+using ceph::bufferlist;
+using ceph::decode;
+using ceph::encode;
+using ceph::ErasureCodeInterfaceRef;
+using ceph::ErasureCodeProfile;
+using ceph::Formatter;
+using ceph::JSONFormatter;
+using ceph::make_message;
+using ceph::mono_clock;
+using ceph::mono_time;
+
+class FlagSetHandler : public FileSystemCommandHandler
+{
+ public:
+ FlagSetHandler()
+ : FileSystemCommandHandler("fs flag set")
+ {
+ }
+
+ int handle(
+ Monitor *mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ string flag_name;
+ cmd_getval(cmdmap, "flag_name", flag_name);
+
+ string flag_val;
+ cmd_getval(cmdmap, "val", flag_val);
+
+ bool sure = false;
+ cmd_getval(cmdmap, "yes_i_really_mean_it", sure);
+
+ if (flag_name == "enable_multiple") {
+ bool flag_bool = false;
+ int r = parse_bool(flag_val, &flag_bool, ss);
+ if (r != 0) {
+ ss << "Invalid boolean value '" << flag_val << "'";
+ return r;
+ }
+
+ fsmap.set_enable_multiple(flag_bool);
+ return 0;
+ } else {
+ ss << "Unknown flag '" << flag_name << "'";
+ return -EINVAL;
+ }
+ }
+};
+
+class FailHandler : public FileSystemCommandHandler
+{
+ public:
+ FailHandler()
+ : FileSystemCommandHandler("fs fail")
+ {
+ }
+
+ int handle(
+ Monitor* mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream& ss) override
+ {
+ if (!mon->osdmon()->is_writeable()) {
+ // not allowed to write yet, so retry when we can
+ mon->osdmon()->wait_for_writeable(op, new PaxosService::C_RetryMessage(mon->mdsmon(), op));
+ return -EAGAIN;
+ }
+
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name) || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+
+ auto fs = fsmap.get_filesystem(fs_name);
+
+ auto f = [](auto fs) {
+ fs->mds_map.set_flag(CEPH_MDSMAP_NOT_JOINABLE);
+ };
+ fsmap.modify_filesystem(fs->fscid, std::move(f));
+
+ std::vector<mds_gid_t> to_fail;
+ for (const auto& p : fs->mds_map.get_mds_info()) {
+ to_fail.push_back(p.first);
+ }
+
+ for (const auto& gid : to_fail) {
+ mon->mdsmon()->fail_mds_gid(fsmap, gid);
+ }
+ if (!to_fail.empty()) {
+ mon->osdmon()->propose_pending();
+ }
+
+ ss << fs_name;
+ ss << " marked not joinable; MDS cannot join the cluster. All MDS ranks marked failed.";
+
+ return 0;
+ }
+};
+
+class FsNewHandler : public FileSystemCommandHandler
+{
+ public:
+ explicit FsNewHandler(Paxos *paxos)
+ : FileSystemCommandHandler("fs new"), m_paxos(paxos)
+ {
+ }
+
+ bool batched_propose() override {
+ return true;
+ }
+
+ int handle(
+ Monitor *mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ ceph_assert(m_paxos->is_plugged());
+
+ string metadata_name;
+ cmd_getval(cmdmap, "metadata", metadata_name);
+ int64_t metadata = mon->osdmon()->osdmap.lookup_pg_pool_name(metadata_name);
+ if (metadata < 0) {
+ ss << "pool '" << metadata_name << "' does not exist";
+ return -ENOENT;
+ }
+
+ string data_name;
+ cmd_getval(cmdmap, "data", data_name);
+ int64_t data = mon->osdmon()->osdmap.lookup_pg_pool_name(data_name);
+ if (data < 0) {
+ ss << "pool '" << data_name << "' does not exist";
+ return -ENOENT;
+ }
+ if (data == 0) {
+ ss << "pool '" << data_name << "' has id 0, which CephFS does not allow. Use another pool or recreate it to get a non-zero pool id.";
+ return -EINVAL;
+ }
+
+ string fs_name;
+ cmd_getval(cmdmap, "fs_name", fs_name);
+ if (fs_name.empty()) {
+ // Ensure fs name is not empty so that we can implement
+ // commmands that refer to FS by name in future.
+ ss << "Filesystem name may not be empty";
+ return -EINVAL;
+ }
+
+ if (fsmap.get_filesystem(fs_name)) {
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (*(fs->mds_map.get_data_pools().begin()) == data
+ && fs->mds_map.get_metadata_pool() == metadata) {
+ // Identical FS created already, this is a no-op
+ ss << "filesystem '" << fs_name << "' already exists";
+ return 0;
+ } else {
+ ss << "filesystem already exists with name '" << fs_name << "'";
+ return -EINVAL;
+ }
+ }
+
+ bool force = false;
+ cmd_getval(cmdmap, "force", force);
+
+ const pool_stat_t *stat = mon->mgrstatmon()->get_pool_stat(metadata);
+ if (stat) {
+ int64_t metadata_num_objects = stat->stats.sum.num_objects;
+ if (!force && metadata_num_objects > 0) {
+ ss << "pool '" << metadata_name
+ << "' already contains some objects. Use an empty pool instead.";
+ return -EINVAL;
+ }
+ }
+
+ if (fsmap.filesystem_count() > 0
+ && !fsmap.get_enable_multiple()) {
+ ss << "Creation of multiple filesystems is disabled. To enable "
+ "this experimental feature, use 'ceph fs flag set enable_multiple "
+ "true'";
+ return -EINVAL;
+ }
+
+ for (auto& fs : fsmap.get_filesystems()) {
+ const std::vector<int64_t> &data_pools = fs->mds_map.get_data_pools();
+
+ bool sure = false;
+ cmd_getval(cmdmap,
+ "allow_dangerous_metadata_overlay", sure);
+
+ if ((std::find(data_pools.begin(), data_pools.end(), data) != data_pools.end()
+ || fs->mds_map.get_metadata_pool() == metadata)
+ && !sure) {
+ ss << "Filesystem '" << fs_name
+ << "' is already using one of the specified RADOS pools. This should ONLY be done in emergencies and after careful reading of the documentation. Pass --allow-dangerous-metadata-overlay to permit this.";
+ return -EEXIST;
+ }
+ }
+
+ int64_t fscid = FS_CLUSTER_ID_NONE;
+ if (cmd_getval(cmdmap, "fscid", fscid)) {
+ if (!force) {
+ ss << "Pass --force to create a file system with a specific ID";
+ return -EINVAL;
+ }
+ if (fsmap.filesystem_exists(fscid)) {
+ ss << "filesystem already exists with id '" << fscid << "'";
+ return -EINVAL;
+ }
+ }
+
+ pg_pool_t const *data_pool = mon->osdmon()->osdmap.get_pg_pool(data);
+ ceph_assert(data_pool != NULL); // Checked it existed above
+ pg_pool_t const *metadata_pool = mon->osdmon()->osdmap.get_pg_pool(metadata);
+ ceph_assert(metadata_pool != NULL); // Checked it existed above
+
+ int r = _check_pool(mon->osdmon()->osdmap, data, POOL_DATA_DEFAULT, force, &ss);
+ if (r < 0) {
+ return r;
+ }
+
+ r = _check_pool(mon->osdmon()->osdmap, metadata, POOL_METADATA, force, &ss);
+ if (r < 0) {
+ return r;
+ }
+
+ if (!mon->osdmon()->is_writeable()) {
+ // not allowed to write yet, so retry when we can
+ mon->osdmon()->wait_for_writeable(op, new PaxosService::C_RetryMessage(mon->mdsmon(), op));
+ return -EAGAIN;
+ }
+ mon->osdmon()->do_application_enable(data,
+ pg_pool_t::APPLICATION_NAME_CEPHFS,
+ "data", fs_name, true);
+ mon->osdmon()->do_application_enable(metadata,
+ pg_pool_t::APPLICATION_NAME_CEPHFS,
+ "metadata", fs_name, true);
+ mon->osdmon()->do_set_pool_opt(metadata,
+ pool_opts_t::RECOVERY_PRIORITY,
+ static_cast<int64_t>(5));
+ mon->osdmon()->do_set_pool_opt(metadata,
+ pool_opts_t::PG_NUM_MIN,
+ static_cast<int64_t>(16));
+ mon->osdmon()->do_set_pool_opt(metadata,
+ pool_opts_t::PG_AUTOSCALE_BIAS,
+ static_cast<double>(4.0));
+ mon->osdmon()->propose_pending();
+
+ bool recover = false;
+ cmd_getval(cmdmap, "recover", recover);
+
+ // All checks passed, go ahead and create.
+ auto&& fs = fsmap.create_filesystem(fs_name, metadata, data,
+ mon->get_quorum_con_features(), fscid, recover);
+
+ ss << "new fs with metadata pool " << metadata << " and data pool " << data;
+
+ if (recover) {
+ return 0;
+ }
+
+ // assign a standby to rank 0 to avoid health warnings
+ auto info = fsmap.find_replacement_for({fs->fscid, 0});
+
+ if (info) {
+ mon->clog->info() << info->human_name() << " assigned to filesystem "
+ << fs_name << " as rank 0";
+ fsmap.promote(info->global_id, *fs, 0);
+ }
+
+ return 0;
+ }
+
+private:
+ Paxos *m_paxos;
+};
+
+class SetHandler : public FileSystemCommandHandler
+{
+public:
+ SetHandler()
+ : FileSystemCommandHandler("fs set")
+ {}
+
+ int handle(
+ Monitor *mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name) || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+
+ auto fs = fsmap.get_filesystem(fs_name);
+ string var;
+ if (!cmd_getval(cmdmap, "var", var) || var.empty()) {
+ ss << "Invalid variable";
+ return -EINVAL;
+ }
+ string val;
+ string interr;
+ int64_t n = 0;
+ if (!cmd_getval(cmdmap, "val", val)) {
+ return -EINVAL;
+ }
+ // we got a string. see if it contains an int.
+ n = strict_strtoll(val.c_str(), 10, &interr);
+ if (var == "max_mds") {
+ // NOTE: see also "mds set_max_mds", which can modify the same field.
+ if (interr.length()) {
+ ss << interr;
+ return -EINVAL;
+ }
+
+ if (n <= 0) {
+ ss << "You must specify at least one MDS";
+ return -EINVAL;
+ }
+
+ if (n > 1 && n > fs->mds_map.get_max_mds()) {
+ if (fs->mds_map.was_snaps_ever_allowed() &&
+ !fs->mds_map.allows_multimds_snaps()) {
+ ss << "multi-active MDS is not allowed while there are snapshots possibly created by pre-mimic MDS";
+ return -EINVAL;
+ }
+ }
+ if (n > MAX_MDS) {
+ ss << "may not have more than " << MAX_MDS << " MDS ranks";
+ return -EINVAL;
+ }
+
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [n](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.clear_flag(CEPH_MDSMAP_NOT_JOINABLE);
+ fs->mds_map.set_max_mds(n);
+ });
+ } else if (var == "inline_data") {
+ bool enable_inline = false;
+ int r = parse_bool(val, &enable_inline, ss);
+ if (r != 0) {
+ return r;
+ }
+
+ if (enable_inline) {
+ bool confirm = false;
+ cmd_getval(cmdmap, "yes_i_really_really_mean_it", confirm);
+ if (!confirm) {
+ ss << "Inline data support is deprecated and will be removed in a future release. "
+ << "Add --yes-i-really-really-mean-it if you are certain you want this enabled.";
+ return -EPERM;
+ }
+ ss << "inline data enabled";
+
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.set_inline_data_enabled(true);
+ });
+ } else {
+ ss << "inline data disabled";
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.set_inline_data_enabled(false);
+ });
+ }
+ } else if (var == "balancer") {
+ if (val.empty()) {
+ ss << "unsetting the metadata load balancer";
+ } else {
+ ss << "setting the metadata load balancer to " << val;
+ }
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [val](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.set_balancer(val);
+ });
+ return true;
+ } else if (var == "max_file_size") {
+ if (interr.length()) {
+ ss << var << " requires an integer value";
+ return -EINVAL;
+ }
+ if (n < CEPH_MIN_STRIPE_UNIT) {
+ ss << var << " must at least " << CEPH_MIN_STRIPE_UNIT;
+ return -ERANGE;
+ }
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [n](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.set_max_filesize(n);
+ });
+ } else if (var == "allow_new_snaps") {
+ bool enable_snaps = false;
+ int r = parse_bool(val, &enable_snaps, ss);
+ if (r != 0) {
+ return r;
+ }
+
+ if (!enable_snaps) {
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.clear_snaps_allowed();
+ });
+ ss << "disabled new snapshots";
+ } else {
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.set_snaps_allowed();
+ });
+ ss << "enabled new snapshots";
+ }
+ } else if (var == "allow_multimds") {
+ ss << "Multiple MDS is always enabled. Use the max_mds"
+ << " parameter to control the number of active MDSs"
+ << " allowed. This command is DEPRECATED and will be"
+ << " REMOVED from future releases.";
+ } else if (var == "allow_multimds_snaps") {
+ bool enable = false;
+ int r = parse_bool(val, &enable, ss);
+ if (r != 0) {
+ return r;
+ }
+
+ string confirm;
+ if (!cmd_getval(cmdmap, "confirm", confirm) ||
+ confirm != "--yes-i-am-really-a-mds") {
+ ss << "Warning! This command is for MDS only. Do not run it manually";
+ return -EPERM;
+ }
+
+ if (enable) {
+ ss << "enabled multimds with snapshot";
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.set_multimds_snaps_allowed();
+ });
+ } else {
+ ss << "disabled multimds with snapshot";
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.clear_multimds_snaps_allowed();
+ });
+ }
+ } else if (var == "allow_dirfrags") {
+ ss << "Directory fragmentation is now permanently enabled."
+ << " This command is DEPRECATED and will be REMOVED from future releases.";
+ } else if (var == "down") {
+ bool is_down = false;
+ int r = parse_bool(val, &is_down, ss);
+ if (r != 0) {
+ return r;
+ }
+
+ ss << fs->mds_map.get_fs_name();
+
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [is_down](std::shared_ptr<Filesystem> fs)
+ {
+ if (is_down) {
+ if (fs->mds_map.get_max_mds() > 0) {
+ fs->mds_map.set_old_max_mds();
+ fs->mds_map.set_max_mds(0);
+ } /* else already down! */
+ } else {
+ mds_rank_t oldmax = fs->mds_map.get_old_max_mds();
+ fs->mds_map.set_max_mds(oldmax ? oldmax : 1);
+ }
+ });
+
+ if (is_down) {
+ ss << " marked down. ";
+ } else {
+ ss << " marked up, max_mds = " << fs->mds_map.get_max_mds();
+ }
+ } else if (var == "cluster_down" || var == "joinable") {
+ bool joinable = true;
+ int r = parse_bool(val, &joinable, ss);
+ if (r != 0) {
+ return r;
+ }
+ if (var == "cluster_down") {
+ joinable = !joinable;
+ }
+
+ ss << fs->mds_map.get_fs_name();
+
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [joinable](std::shared_ptr<Filesystem> fs)
+ {
+ if (joinable) {
+ fs->mds_map.clear_flag(CEPH_MDSMAP_NOT_JOINABLE);
+ } else {
+ fs->mds_map.set_flag(CEPH_MDSMAP_NOT_JOINABLE);
+ }
+ });
+
+ if (joinable) {
+ ss << " marked joinable; MDS may join as newly active.";
+ } else {
+ ss << " marked not joinable; MDS cannot join as newly active.";
+ }
+
+ if (var == "cluster_down") {
+ ss << " WARNING: cluster_down flag is deprecated and will be"
+ << " removed in a future version. Please use \"joinable\".";
+ }
+ } else if (var == "standby_count_wanted") {
+ if (interr.length()) {
+ ss << var << " requires an integer value";
+ return -EINVAL;
+ }
+ if (n < 0) {
+ ss << var << " must be non-negative";
+ return -ERANGE;
+ }
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [n](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.set_standby_count_wanted(n);
+ });
+ } else if (var == "session_timeout") {
+ if (interr.length()) {
+ ss << var << " requires an integer value";
+ return -EINVAL;
+ }
+ if (n < 30) {
+ ss << var << " must be at least 30s";
+ return -ERANGE;
+ }
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [n](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.set_session_timeout((uint32_t)n);
+ });
+ } else if (var == "session_autoclose") {
+ if (interr.length()) {
+ ss << var << " requires an integer value";
+ return -EINVAL;
+ }
+ if (n < 30) {
+ ss << var << " must be at least 30s";
+ return -ERANGE;
+ }
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [n](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.set_session_autoclose((uint32_t)n);
+ });
+ } else if (var == "allow_standby_replay") {
+ bool allow = false;
+ int r = parse_bool(val, &allow, ss);
+ if (r != 0) {
+ return r;
+ }
+
+ if (!allow) {
+ if (!mon->osdmon()->is_writeable()) {
+ // not allowed to write yet, so retry when we can
+ mon->osdmon()->wait_for_writeable(op, new PaxosService::C_RetryMessage(mon->mdsmon(), op));
+ return -EAGAIN;
+ }
+ std::vector<mds_gid_t> to_fail;
+ for (const auto& [gid, info]: fs->mds_map.get_mds_info()) {
+ if (info.state == MDSMap::STATE_STANDBY_REPLAY) {
+ to_fail.push_back(gid);
+ }
+ }
+
+ for (const auto& gid : to_fail) {
+ mon->mdsmon()->fail_mds_gid(fsmap, gid);
+ }
+ if (!to_fail.empty()) {
+ mon->osdmon()->propose_pending();
+ }
+ }
+
+ auto f = [allow](auto& fs) {
+ if (allow) {
+ fs->mds_map.set_standby_replay_allowed();
+ } else {
+ fs->mds_map.clear_standby_replay_allowed();
+ }
+ };
+ fsmap.modify_filesystem(fs->fscid, std::move(f));
+ } else if (var == "min_compat_client") {
+ auto vno = ceph_release_from_name(val.c_str());
+ if (!vno) {
+ ss << "version " << val << " is not recognized";
+ return -EINVAL;
+ }
+ ss << "WARNING: setting min_compat_client is deprecated"
+ " and may not do what you want.\n"
+ "The oldest release to set is octopus.\n"
+ "Please migrate to `ceph fs required_client_features ...`.";
+ auto f = [vno](auto&& fs) {
+ fs->mds_map.set_min_compat_client(vno);
+ };
+ fsmap.modify_filesystem(fs->fscid, std::move(f));
+ } else {
+ ss << "unknown variable " << var;
+ return -EINVAL;
+ }
+
+ return 0;
+ }
+};
+
+class CompatSetHandler : public FileSystemCommandHandler
+{
+ public:
+ CompatSetHandler()
+ : FileSystemCommandHandler("fs compat")
+ {
+ }
+
+ int handle(
+ Monitor *mon,
+ FSMap &fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ static const std::set<std::string> subops = {"rm_incompat", "rm_compat", "add_incompat", "add_compat"};
+
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name) || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ ss << "Not found: '" << fs_name << "'";
+ return -ENOENT;
+ }
+
+ string subop;
+ if (!cmd_getval(cmdmap, "subop", subop) || subops.count(subop) == 0) {
+ ss << "subop `" << subop << "' not recognized. Must be one of: " << subops;
+ return -EINVAL;
+ }
+
+ int64_t feature;
+ if (!cmd_getval(cmdmap, "feature", feature) || feature <= 0) {
+ ss << "Invalid feature";
+ return -EINVAL;
+ }
+
+ if (fs->mds_map.get_num_up_mds() > 0) {
+ ss << "file system must be failed or down; use `ceph fs fail` to bring down";
+ return -EBUSY;
+ }
+
+ CompatSet cs = fs->mds_map.compat;
+ if (subop == "rm_compat") {
+ if (cs.compat.contains(feature)) {
+ ss << "removed compat feature " << feature;
+ cs.compat.remove(feature);
+ } else {
+ ss << "already removed compat feature " << feature;
+ }
+ } else if (subop == "rm_incompat") {
+ if (cs.incompat.contains(feature)) {
+ ss << "removed incompat feature " << feature;
+ cs.incompat.remove(feature);
+ } else {
+ ss << "already removed incompat feature " << feature;
+ }
+ } else if (subop == "add_compat" || subop == "add_incompat") {
+ string feature_str;
+ if (!cmd_getval(cmdmap, "feature_str", feature_str) || feature_str.empty()) {
+ ss << "adding a feature requires a feature string";
+ return -EINVAL;
+ }
+ auto f = CompatSet::Feature(feature, feature_str);
+ if (subop == "add_compat") {
+ if (cs.compat.contains(feature)) {
+ auto name = cs.compat.get_name(feature);
+ if (name == feature_str) {
+ ss << "feature already exists";
+ } else {
+ ss << "feature with differing name `" << name << "' exists";
+ return -EEXIST;
+ }
+ } else {
+ cs.compat.insert(f);
+ ss << "added compat feature " << f;
+ }
+ } else if (subop == "add_incompat") {
+ if (cs.incompat.contains(feature)) {
+ auto name = cs.incompat.get_name(feature);
+ if (name == feature_str) {
+ ss << "feature already exists";
+ } else {
+ ss << "feature with differing name `" << name << "' exists";
+ return -EEXIST;
+ }
+ } else {
+ cs.incompat.insert(f);
+ ss << "added incompat feature " << f;
+ }
+ } else ceph_assert(0);
+ } else ceph_assert(0);
+
+ auto modifyf = [cs = std::move(cs)](auto&& fs) {
+ fs->mds_map.compat = cs;
+ };
+
+ fsmap.modify_filesystem(fs->fscid, std::move(modifyf));
+ return 0;
+ }
+};
+
+class RequiredClientFeaturesHandler : public FileSystemCommandHandler
+{
+ public:
+ RequiredClientFeaturesHandler()
+ : FileSystemCommandHandler("fs required_client_features")
+ {
+ }
+
+ int handle(
+ Monitor *mon,
+ FSMap &fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name) || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ ss << "Not found: '" << fs_name << "'";
+ return -ENOENT;
+ }
+ string subop;
+ if (!cmd_getval(cmdmap, "subop", subop) ||
+ (subop != "add" && subop != "rm")) {
+ ss << "Must either add or rm a feature; " << subop << " is not recognized";
+ return -EINVAL;
+ }
+ string val;
+ if (!cmd_getval(cmdmap, "val", val) || val.empty()) {
+ ss << "Missing feature id/name";
+ return -EINVAL;
+ }
+
+ int feature = cephfs_feature_from_name(val);
+ if (feature < 0) {
+ string err;
+ feature = strict_strtol(val.c_str(), 10, &err);
+ if (err.length()) {
+ ss << "Invalid feature name: " << val;
+ return -EINVAL;
+ }
+ if (feature < 0 || feature > CEPHFS_FEATURE_MAX) {
+ ss << "Invalid feature id: " << feature;
+ return -EINVAL;
+ }
+ }
+
+ if (subop == "add") {
+ bool ret = false;
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [feature, &ret](auto&& fs)
+ {
+ if (fs->mds_map.get_required_client_features().test(feature))
+ return;
+ fs->mds_map.add_required_client_feature(feature);
+ ret = true;
+ });
+ if (ret) {
+ ss << "added feature '" << cephfs_feature_name(feature) << "' to required_client_features";
+ } else {
+ ss << "feature '" << cephfs_feature_name(feature) << "' is already set";
+ }
+ } else {
+ bool ret = false;
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [feature, &ret](auto&& fs)
+ {
+ if (!fs->mds_map.get_required_client_features().test(feature))
+ return;
+ fs->mds_map.remove_required_client_feature(feature);
+ ret = true;
+ });
+ if (ret) {
+ ss << "removed feature '" << cephfs_feature_name(feature) << "' from required_client_features";
+ } else {
+ ss << "feature '" << cephfs_feature_name(feature) << "' is already unset";
+ }
+ }
+ return 0;
+ }
+};
+
+
+class AddDataPoolHandler : public FileSystemCommandHandler
+{
+ public:
+ explicit AddDataPoolHandler(Paxos *paxos)
+ : FileSystemCommandHandler("fs add_data_pool"), m_paxos(paxos)
+ {}
+
+ bool batched_propose() override {
+ return true;
+ }
+
+ int handle(
+ Monitor *mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ ceph_assert(m_paxos->is_plugged());
+
+ string poolname;
+ cmd_getval(cmdmap, "pool", poolname);
+
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name)
+ || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+
+ int64_t poolid = mon->osdmon()->osdmap.lookup_pg_pool_name(poolname);
+ if (poolid < 0) {
+ string err;
+ poolid = strict_strtol(poolname.c_str(), 10, &err);
+ if (err.length()) {
+ ss << "pool '" << poolname << "' does not exist";
+ return -ENOENT;
+ }
+ }
+
+ int r = _check_pool(mon->osdmon()->osdmap, poolid, POOL_DATA_EXTRA, false, &ss);
+ if (r != 0) {
+ return r;
+ }
+
+ auto fs = fsmap.get_filesystem(fs_name);
+ // no-op when the data_pool already on fs
+ if (fs->mds_map.is_data_pool(poolid)) {
+ ss << "data pool " << poolid << " is already on fs " << fs_name;
+ return 0;
+ }
+
+ if (!mon->osdmon()->is_writeable()) {
+ // not allowed to write yet, so retry when we can
+ mon->osdmon()->wait_for_writeable(op, new PaxosService::C_RetryMessage(mon->mdsmon(), op));
+ return -EAGAIN;
+ }
+ mon->osdmon()->do_application_enable(poolid,
+ pg_pool_t::APPLICATION_NAME_CEPHFS,
+ "data", fs_name, true);
+ mon->osdmon()->propose_pending();
+
+ fsmap.modify_filesystem(
+ fs->fscid,
+ [poolid](std::shared_ptr<Filesystem> fs)
+ {
+ fs->mds_map.add_data_pool(poolid);
+ });
+
+ ss << "added data pool " << poolid << " to fsmap";
+
+ return 0;
+ }
+
+private:
+ Paxos *m_paxos;
+};
+
+class SetDefaultHandler : public FileSystemCommandHandler
+{
+ public:
+ SetDefaultHandler()
+ : FileSystemCommandHandler("fs set-default")
+ {}
+
+ int handle(
+ Monitor *mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ std::string fs_name;
+ cmd_getval(cmdmap, "fs_name", fs_name);
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ ss << "filesystem '" << fs_name << "' does not exist";
+ return -ENOENT;
+ }
+
+ fsmap.set_legacy_client_fscid(fs->fscid);
+ return 0;
+ }
+};
+
+class RemoveFilesystemHandler : public FileSystemCommandHandler
+{
+ public:
+ RemoveFilesystemHandler()
+ : FileSystemCommandHandler("fs rm")
+ {}
+
+ int handle(
+ Monitor *mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ /* We may need to blocklist ranks. */
+ if (!mon->osdmon()->is_writeable()) {
+ // not allowed to write yet, so retry when we can
+ mon->osdmon()->wait_for_writeable(op, new PaxosService::C_RetryMessage(mon->mdsmon(), op));
+ return -EAGAIN;
+ }
+
+ // Check caller has correctly named the FS to delete
+ // (redundant while there is only one FS, but command
+ // syntax should apply to multi-FS future)
+ string fs_name;
+ cmd_getval(cmdmap, "fs_name", fs_name);
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ // Consider absence success to make deletes idempotent
+ ss << "filesystem '" << fs_name << "' does not exist";
+ return 0;
+ }
+
+ // Check that no MDS daemons are active
+ if (fs->mds_map.get_num_up_mds() > 0) {
+ ss << "all MDS daemons must be inactive/failed before removing filesystem. See `ceph fs fail`.";
+ return -EINVAL;
+ }
+
+ // Check for confirmation flag
+ bool sure = false;
+ cmd_getval(cmdmap, "yes_i_really_mean_it", sure);
+ if (!sure) {
+ ss << "this is a DESTRUCTIVE operation and will make data in your filesystem permanently" \
+ " inaccessible. Add --yes-i-really-mean-it if you are sure you wish to continue.";
+ return -EPERM;
+ }
+
+ if (fsmap.get_legacy_client_fscid() == fs->fscid) {
+ fsmap.set_legacy_client_fscid(FS_CLUSTER_ID_NONE);
+ }
+
+ std::vector<mds_gid_t> to_fail;
+ // There may be standby_replay daemons left here
+ for (const auto &i : fs->mds_map.get_mds_info()) {
+ ceph_assert(i.second.state == MDSMap::STATE_STANDBY_REPLAY);
+ to_fail.push_back(i.first);
+ }
+
+ for (const auto &gid : to_fail) {
+ // Standby replays don't write, so it isn't important to
+ // wait for an osdmap propose here: ignore return value.
+ mon->mdsmon()->fail_mds_gid(fsmap, gid);
+ }
+ if (!to_fail.empty()) {
+ mon->osdmon()->propose_pending(); /* maybe new blocklists */
+ }
+
+ fsmap.erase_filesystem(fs->fscid);
+
+ return 0;
+ }
+};
+
+class ResetFilesystemHandler : public FileSystemCommandHandler
+{
+ public:
+ ResetFilesystemHandler()
+ : FileSystemCommandHandler("fs reset")
+ {}
+
+ int handle(
+ Monitor *mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ string fs_name;
+ cmd_getval(cmdmap, "fs_name", fs_name);
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ ss << "filesystem '" << fs_name << "' does not exist";
+ // Unlike fs rm, we consider this case an error
+ return -ENOENT;
+ }
+
+ // Check that no MDS daemons are active
+ if (fs->mds_map.get_num_up_mds() > 0) {
+ ss << "all MDS daemons must be inactive before resetting filesystem: set the cluster_down flag"
+ " and use `ceph mds fail` to make this so";
+ return -EINVAL;
+ }
+
+ // Check for confirmation flag
+ bool sure = false;
+ cmd_getval(cmdmap, "yes_i_really_mean_it", sure);
+ if (!sure) {
+ ss << "this is a potentially destructive operation, only for use by experts in disaster recovery. "
+ "Add --yes-i-really-mean-it if you are sure you wish to continue.";
+ return -EPERM;
+ }
+
+ fsmap.reset_filesystem(fs->fscid);
+
+ return 0;
+ }
+};
+
+class RemoveDataPoolHandler : public FileSystemCommandHandler
+{
+ public:
+ RemoveDataPoolHandler()
+ : FileSystemCommandHandler("fs rm_data_pool")
+ {}
+
+ int handle(
+ Monitor *mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ string poolname;
+ cmd_getval(cmdmap, "pool", poolname);
+
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name)
+ || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+
+ int64_t poolid = mon->osdmon()->osdmap.lookup_pg_pool_name(poolname);
+ if (poolid < 0) {
+ string err;
+ poolid = strict_strtol(poolname.c_str(), 10, &err);
+ if (err.length()) {
+ ss << "pool '" << poolname << "' does not exist";
+ return -ENOENT;
+ } else if (poolid < 0) {
+ ss << "invalid pool id '" << poolid << "'";
+ return -EINVAL;
+ }
+ }
+
+ ceph_assert(poolid >= 0); // Checked by parsing code above
+
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs->mds_map.get_first_data_pool() == poolid) {
+ ss << "cannot remove default data pool";
+ return -EINVAL;
+ }
+
+ int r = 0;
+ fsmap.modify_filesystem(fs->fscid,
+ [&r, poolid](std::shared_ptr<Filesystem> fs)
+ {
+ r = fs->mds_map.remove_data_pool(poolid);
+ });
+ if (r == -ENOENT) {
+ // It was already removed, succeed in silence
+ return 0;
+ } else if (r == 0) {
+ // We removed it, succeed
+ ss << "removed data pool " << poolid << " from fsmap";
+ return 0;
+ } else {
+ // Unexpected error, bubble up
+ return r;
+ }
+ }
+};
+
+/**
+ * For commands with an alternative prefix
+ */
+template<typename T>
+class AliasHandler : public T
+{
+ std::string alias_prefix;
+
+ public:
+ explicit AliasHandler(const std::string &new_prefix)
+ : T()
+ {
+ alias_prefix = new_prefix;
+ }
+
+ std::string const &get_prefix() const override {return alias_prefix;}
+
+ int handle(
+ Monitor *mon,
+ FSMap& fsmap,
+ MonOpRequestRef op,
+ const cmdmap_t& cmdmap,
+ std::ostream &ss) override
+ {
+ return T::handle(mon, fsmap, op, cmdmap, ss);
+ }
+};
+
+class MirrorHandlerEnable : public FileSystemCommandHandler
+{
+public:
+ MirrorHandlerEnable()
+ : FileSystemCommandHandler("fs mirror enable")
+ {}
+
+ int handle(Monitor *mon,
+ FSMap &fsmap, MonOpRequestRef op,
+ const cmdmap_t& cmdmap, std::ostream &ss) override {
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name) || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ ss << "Filesystem '" << fs_name << "' not found";
+ return -ENOENT;
+ }
+
+ if (fs->mirror_info.is_mirrored()) {
+ return 0;
+ }
+
+ auto f = [](auto &&fs) {
+ fs->mirror_info.enable_mirroring();
+ };
+ fsmap.modify_filesystem(fs->fscid, std::move(f));
+
+ return 0;
+ }
+};
+
+class MirrorHandlerDisable : public FileSystemCommandHandler
+{
+public:
+ MirrorHandlerDisable()
+ : FileSystemCommandHandler("fs mirror disable")
+ {}
+
+ int handle(Monitor *mon,
+ FSMap &fsmap, MonOpRequestRef op,
+ const cmdmap_t& cmdmap, std::ostream &ss) override {
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name) || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ ss << "Filesystem '" << fs_name << "' not found";
+ return -ENOENT;
+ }
+
+ if (!fs->mirror_info.is_mirrored()) {
+ return 0;
+ }
+
+ auto f = [](auto &&fs) {
+ fs->mirror_info.disable_mirroring();
+ };
+ fsmap.modify_filesystem(fs->fscid, std::move(f));
+
+ return 0;
+ }
+};
+
+class MirrorHandlerAddPeer : public FileSystemCommandHandler
+{
+public:
+ MirrorHandlerAddPeer()
+ : FileSystemCommandHandler("fs mirror peer_add")
+ {}
+
+ boost::optional<std::pair<string, string>>
+ extract_remote_cluster_conf(const std::string &spec) {
+ auto pos = spec.find("@");
+ if (pos == std::string_view::npos) {
+ return boost::optional<std::pair<string, string>>();
+ }
+
+ auto client = spec.substr(0, pos);
+ auto cluster = spec.substr(pos+1);
+
+ return std::make_pair(client, cluster);
+ }
+
+ bool peer_add(FSMap &fsmap, Filesystem::const_ref &&fs,
+ const cmdmap_t &cmdmap, std::ostream &ss) {
+ string peer_uuid;
+ string remote_spec;
+ string remote_fs_name;
+ cmd_getval(cmdmap, "uuid", peer_uuid);
+ cmd_getval(cmdmap, "remote_cluster_spec", remote_spec);
+ cmd_getval(cmdmap, "remote_fs_name", remote_fs_name);
+
+ // verify (and extract) remote cluster specification
+ auto remote_conf = extract_remote_cluster_conf(remote_spec);
+ if (!remote_conf) {
+ ss << "invalid remote cluster spec -- should be <client>@<cluster>";
+ return false;
+ }
+
+ if (fs->mirror_info.has_peer(peer_uuid)) {
+ ss << "peer already exists";
+ return true;
+ }
+ if (fs->mirror_info.has_peer((*remote_conf).first, (*remote_conf).second,
+ remote_fs_name)) {
+ ss << "peer already exists";
+ return true;
+ }
+
+ auto f = [peer_uuid, remote_conf, remote_fs_name](auto &&fs) {
+ fs->mirror_info.peer_add(peer_uuid, (*remote_conf).first,
+ (*remote_conf).second, remote_fs_name);
+ };
+ fsmap.modify_filesystem(fs->fscid, std::move(f));
+ return true;
+ }
+
+ int handle(Monitor *mon,
+ FSMap &fsmap, MonOpRequestRef op,
+ const cmdmap_t& cmdmap, std::ostream &ss) override {
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name) || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ ss << "Filesystem '" << fs_name << "' not found";
+ return -ENOENT;
+ }
+
+ if (!fs->mirror_info.is_mirrored()) {
+ ss << "Mirroring not enabled for filesystem '" << fs_name << "'";
+ return -EINVAL;
+ }
+
+ auto res = peer_add(fsmap, std::move(fs), cmdmap, ss);
+ if (!res) {
+ return -EINVAL;
+ }
+
+ return 0;
+ }
+};
+
+class MirrorHandlerRemovePeer : public FileSystemCommandHandler
+{
+public:
+ MirrorHandlerRemovePeer()
+ : FileSystemCommandHandler("fs mirror peer_remove")
+ {}
+
+ bool peer_remove(FSMap &fsmap, Filesystem::const_ref &&fs,
+ const cmdmap_t &cmdmap, std::ostream &ss) {
+ string peer_uuid;
+ cmd_getval(cmdmap, "uuid", peer_uuid);
+
+ if (!fs->mirror_info.has_peer(peer_uuid)) {
+ ss << "cannot find peer with uuid: " << peer_uuid;
+ return true;
+ }
+
+ auto f = [peer_uuid](auto &&fs) {
+ fs->mirror_info.peer_remove(peer_uuid);
+ };
+ fsmap.modify_filesystem(fs->fscid, std::move(f));
+ return true;
+ }
+
+ int handle(Monitor *mon,
+ FSMap &fsmap, MonOpRequestRef op,
+ const cmdmap_t& cmdmap, std::ostream &ss) override {
+ std::string fs_name;
+ if (!cmd_getval(cmdmap, "fs_name", fs_name) || fs_name.empty()) {
+ ss << "Missing filesystem name";
+ return -EINVAL;
+ }
+
+ auto fs = fsmap.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ ss << "Filesystem '" << fs_name << "' not found";
+ return -ENOENT;
+ }
+
+ if (!fs->mirror_info.is_mirrored()) {
+ ss << "Mirroring not enabled for filesystem '" << fs_name << "'";
+ return -EINVAL;
+ }
+
+ auto res = peer_remove(fsmap, std::move(fs), cmdmap, ss);
+ if (!res) {
+ return -EINVAL;
+ }
+
+ return 0;
+ }
+};
+
+std::list<std::shared_ptr<FileSystemCommandHandler> >
+FileSystemCommandHandler::load(Paxos *paxos)
+{
+ std::list<std::shared_ptr<FileSystemCommandHandler> > handlers;
+
+ handlers.push_back(std::make_shared<SetHandler>());
+ handlers.push_back(std::make_shared<FailHandler>());
+ handlers.push_back(std::make_shared<FlagSetHandler>());
+ handlers.push_back(std::make_shared<CompatSetHandler>());
+ handlers.push_back(std::make_shared<RequiredClientFeaturesHandler>());
+ handlers.push_back(std::make_shared<AddDataPoolHandler>(paxos));
+ handlers.push_back(std::make_shared<RemoveDataPoolHandler>());
+ handlers.push_back(std::make_shared<FsNewHandler>(paxos));
+ handlers.push_back(std::make_shared<RemoveFilesystemHandler>());
+ handlers.push_back(std::make_shared<ResetFilesystemHandler>());
+
+ handlers.push_back(std::make_shared<SetDefaultHandler>());
+ handlers.push_back(std::make_shared<AliasHandler<SetDefaultHandler> >(
+ "fs set_default"));
+ handlers.push_back(std::make_shared<MirrorHandlerEnable>());
+ handlers.push_back(std::make_shared<MirrorHandlerDisable>());
+ handlers.push_back(std::make_shared<MirrorHandlerAddPeer>());
+ handlers.push_back(std::make_shared<MirrorHandlerRemovePeer>());
+
+ return handlers;
+}
+
+int FileSystemCommandHandler::_check_pool(
+ OSDMap &osd_map,
+ const int64_t pool_id,
+ int type,
+ bool force,
+ std::ostream *ss) const
+{
+ ceph_assert(ss != NULL);
+
+ const pg_pool_t *pool = osd_map.get_pg_pool(pool_id);
+ if (!pool) {
+ *ss << "pool id '" << pool_id << "' does not exist";
+ return -ENOENT;
+ }
+
+ const string& pool_name = osd_map.get_pool_name(pool_id);
+
+ if (pool->is_erasure()) {
+ if (type == POOL_METADATA) {
+ *ss << "pool '" << pool_name << "' (id '" << pool_id << "')"
+ << " is an erasure-coded pool. Use of erasure-coded pools"
+ << " for CephFS metadata is not permitted";
+ return -EINVAL;
+ } else if (type == POOL_DATA_DEFAULT && !force) {
+ *ss << "pool '" << pool_name << "' (id '" << pool_id << "')"
+ " is an erasure-coded pool."
+ " Use of an EC pool for the default data pool is discouraged;"
+ " see the online CephFS documentation for more information."
+ " Use --force to override.";
+ return -EINVAL;
+ } else if (!pool->allows_ecoverwrites()) {
+ // non-overwriteable EC pools are only acceptable with a cache tier overlay
+ if (!pool->has_tiers() || !pool->has_read_tier() || !pool->has_write_tier()) {
+ *ss << "pool '" << pool_name << "' (id '" << pool_id << "')"
+ << " is an erasure-coded pool, with no overwrite support";
+ return -EINVAL;
+ }
+
+ // That cache tier overlay must be writeback, not readonly (it's the
+ // write operations like modify+truncate we care about support for)
+ const pg_pool_t *write_tier = osd_map.get_pg_pool(
+ pool->write_tier);
+ ceph_assert(write_tier != NULL); // OSDMonitor shouldn't allow DNE tier
+ if (write_tier->cache_mode == pg_pool_t::CACHEMODE_FORWARD
+ || write_tier->cache_mode == pg_pool_t::CACHEMODE_READONLY) {
+ *ss << "EC pool '" << pool_name << "' has a write tier ("
+ << osd_map.get_pool_name(pool->write_tier)
+ << ") that is configured "
+ "to forward writes. Use a cache mode such as 'writeback' for "
+ "CephFS";
+ return -EINVAL;
+ }
+ }
+ }
+
+ if (pool->is_tier()) {
+ *ss << " pool '" << pool_name << "' (id '" << pool_id
+ << "') is already in use as a cache tier.";
+ return -EINVAL;
+ }
+
+ if (!force && !pool->application_metadata.empty() &&
+ pool->application_metadata.count(
+ pg_pool_t::APPLICATION_NAME_CEPHFS) == 0) {
+ *ss << " pool '" << pool_name << "' (id '" << pool_id
+ << "') has a non-CephFS application enabled.";
+ return -EINVAL;
+ }
+
+ // Nothing special about this pool, so it is permissible
+ return 0;
+}
+
+int FileSystemCommandHandler::is_op_allowed(
+ const MonOpRequestRef& op, const FSMap& fsmap, const cmdmap_t& cmdmap,
+ std::ostream &ss) const
+{
+ string fs_name;
+ cmd_getval(cmdmap, "fs_name", fs_name);
+
+ // so that fsmap can filtered and the original copy is untouched.
+ FSMap fsmap_copy = fsmap;
+ fsmap_copy.filter(op->get_session()->get_allowed_fs_names());
+
+ auto fs = fsmap_copy.get_filesystem(fs_name);
+ if (fs == nullptr) {
+ /* let "fs rm" handle idempotent case where file system does not exist */
+ if (!(get_prefix() == "fs rm" && fsmap.get_filesystem(fs_name) == nullptr)) {
+ ss << "Filesystem not found: '" << fs_name << "'";
+ return -ENOENT;
+ }
+ }
+
+ if (!op->get_session()->fs_name_capable(fs_name, MON_CAP_W)) {
+ ss << "Permission denied: '" << fs_name << "'";
+ return -EPERM;
+ }
+
+ return 1;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-20 13:59:19 +0000