xref: /openbmc/bmcweb/redfish-core/lib/storage.hpp (revision e99073f5) 
1 /*
2 // Copyright (c) 2019 Intel Corporation
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 //      http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 */
16 #pragma once
17 
18 #include "app.hpp"
19 #include "dbus_utility.hpp"
20 #include "health.hpp"
21 #include "openbmc_dbus_rest.hpp"
22 #include "query.hpp"
23 #include "registries/privilege_registry.hpp"
24 #include "utils/dbus_utils.hpp"
25 
26 #include <boost/system/error_code.hpp>
27 #include <sdbusplus/asio/property.hpp>
28 #include <sdbusplus/unpack_properties.hpp>
29 
30 #include <array>
31 #include <string_view>
32 
33 namespace redfish
34 {
35 inline void requestRoutesStorageCollection(App& app)
36 {
37     BMCWEB_ROUTE(app, "/redfish/v1/Systems/<str>/Storage/")
38         .privileges(redfish::privileges::getStorageCollection)
39         .methods(boost::beast::http::verb::get)(
40             [&app](const crow::Request& req,
41                    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
42                    const std::string& systemName) {
43         if (!redfish::setUpRedfishRoute(app, req, asyncResp))
44         {
45             return;
46         }
47         if (systemName != "system")
48         {
49             messages::resourceNotFound(asyncResp->res, "ComputerSystem",
50                                        systemName);
51             return;
52         }
53 
54         asyncResp->res.jsonValue["@odata.type"] =
55             "#StorageCollection.StorageCollection";
56         asyncResp->res.jsonValue["@odata.id"] =
57             "/redfish/v1/Systems/system/Storage";
58         asyncResp->res.jsonValue["Name"] = "Storage Collection";
59         nlohmann::json::array_t members;
60         nlohmann::json::object_t member;
61         member["@odata.id"] = "/redfish/v1/Systems/system/Storage/1";
62         members.emplace_back(member);
63         asyncResp->res.jsonValue["Members"] = std::move(members);
64         asyncResp->res.jsonValue["Members@odata.count"] = 1;
65         });
66 }
67 
68 inline void getDrives(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
69                       const std::shared_ptr<HealthPopulate>& health)
70 {
71     const std::array<std::string_view, 1> interfaces = {
72         "xyz.openbmc_project.Inventory.Item.Drive"};
73     dbus::utility::getSubTreePaths(
74         "/xyz/openbmc_project/inventory", 0, interfaces,
75         [asyncResp, health](
76             const boost::system::error_code& ec,
77             const dbus::utility::MapperGetSubTreePathsResponse& driveList) {
78         if (ec)
79         {
80             BMCWEB_LOG_ERROR << "Drive mapper call error";
81             messages::internalError(asyncResp->res);
82             return;
83         }
84 
85         nlohmann::json& driveArray = asyncResp->res.jsonValue["Drives"];
86         driveArray = nlohmann::json::array();
87         auto& count = asyncResp->res.jsonValue["Drives@odata.count"];
88         count = 0;
89 
90         health->inventory.insert(health->inventory.end(), driveList.begin(),
91                                  driveList.end());
92 
93         for (const std::string& drive : driveList)
94         {
95             sdbusplus::message::object_path object(drive);
96             if (object.filename().empty())
97             {
98                 BMCWEB_LOG_ERROR << "Failed to find filename in " << drive;
99                 return;
100             }
101 
102             nlohmann::json::object_t driveJson;
103             driveJson["@odata.id"] =
104                 "/redfish/v1/Systems/system/Storage/1/Drives/" +
105                 object.filename();
106             driveArray.push_back(std::move(driveJson));
107         }
108 
109         count = driveArray.size();
110         });
111 }
112 
113 inline void
114     getStorageControllers(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
115                           const std::shared_ptr<HealthPopulate>& health)
116 {
117     constexpr std::array<std::string_view, 1> interfaces = {
118         "xyz.openbmc_project.Inventory.Item.StorageController"};
119     dbus::utility::getSubTree(
120         "/xyz/openbmc_project/inventory", 0, interfaces,
121         [asyncResp,
122          health](const boost::system::error_code& ec,
123                  const dbus::utility::MapperGetSubTreeResponse& subtree) {
124         if (ec || subtree.empty())
125         {
126             // doesn't have to be there
127             return;
128         }
129 
130         nlohmann::json& root = asyncResp->res.jsonValue["StorageControllers"];
131         root = nlohmann::json::array();
132         for (const auto& [path, interfaceDict] : subtree)
133         {
134             sdbusplus::message::object_path object(path);
135             std::string id = object.filename();
136             if (id.empty())
137             {
138                 BMCWEB_LOG_ERROR << "Failed to find filename in " << path;
139                 return;
140             }
141 
142             if (interfaceDict.size() != 1)
143             {
144                 BMCWEB_LOG_ERROR << "Connection size " << interfaceDict.size()
145                                  << ", greater than 1";
146                 messages::internalError(asyncResp->res);
147                 return;
148             }
149 
150             const std::string& connectionName = interfaceDict.front().first;
151 
152             size_t index = root.size();
153             nlohmann::json& storageController =
154                 root.emplace_back(nlohmann::json::object());
155 
156             storageController["@odata.type"] =
157                 "#Storage.v1_7_0.StorageController";
158             storageController["@odata.id"] =
159                 "/redfish/v1/Systems/system/Storage/1#/StorageControllers/" +
160                 std::to_string(index);
161             storageController["Name"] = id;
162             storageController["MemberId"] = id;
163             storageController["Status"]["State"] = "Enabled";
164 
165             sdbusplus::asio::getProperty<bool>(
166                 *crow::connections::systemBus, connectionName, path,
167                 "xyz.openbmc_project.Inventory.Item", "Present",
168                 [asyncResp, index](const boost::system::error_code ec2,
169                                    bool enabled) {
170                 // this interface isn't necessary, only check it
171                 // if we get a good return
172                 if (ec2)
173                 {
174                     return;
175                 }
176                 if (!enabled)
177                 {
178                     asyncResp->res.jsonValue["StorageControllers"][index]
179                                             ["Status"]["State"] = "Disabled";
180                 }
181                 });
182 
183             sdbusplus::asio::getAllProperties(
184                 *crow::connections::systemBus, connectionName, path,
185                 "xyz.openbmc_project.Inventory.Decorator.Asset",
186                 [asyncResp, index](
187                     const boost::system::error_code ec2,
188                     const std::vector<
189                         std::pair<std::string, dbus::utility::DbusVariantType>>&
190                         propertiesList) {
191                 if (ec2)
192                 {
193                     // this interface isn't necessary
194                     return;
195                 }
196 
197                 const std::string* partNumber = nullptr;
198                 const std::string* serialNumber = nullptr;
199                 const std::string* manufacturer = nullptr;
200                 const std::string* model = nullptr;
201 
202                 const bool success = sdbusplus::unpackPropertiesNoThrow(
203                     dbus_utils::UnpackErrorPrinter(), propertiesList,
204                     "PartNumber", partNumber, "SerialNumber", serialNumber,
205                     "Manufacturer", manufacturer, "Model", model);
206 
207                 if (!success)
208                 {
209                     messages::internalError(asyncResp->res);
210                     return;
211                 }
212 
213                 nlohmann::json& controller =
214                     asyncResp->res.jsonValue["StorageControllers"][index];
215 
216                 if (partNumber != nullptr)
217                 {
218                     controller["PartNumber"] = *partNumber;
219                 }
220 
221                 if (serialNumber != nullptr)
222                 {
223                     controller["SerialNumber"] = *serialNumber;
224                 }
225 
226                 if (manufacturer != nullptr)
227                 {
228                     controller["Manufacturer"] = *manufacturer;
229                 }
230 
231                 if (model != nullptr)
232                 {
233                     controller["Model"] = *model;
234                 }
235                 });
236         }
237 
238         // this is done after we know the json array will no longer
239         // be resized, as json::array uses vector underneath and we
240         // need references to its members that won't change
241         size_t count = 0;
242         // Pointer based on |asyncResp->res.jsonValue|
243         nlohmann::json::json_pointer rootPtr =
244             "/StorageControllers"_json_pointer;
245         for (const auto& [path, interfaceDict] : subtree)
246         {
247             auto subHealth = std::make_shared<HealthPopulate>(
248                 asyncResp, rootPtr / count / "Status");
249             subHealth->inventory.emplace_back(path);
250             health->inventory.emplace_back(path);
251             health->children.emplace_back(subHealth);
252             count++;
253         }
254         });
255 }
256 
257 inline void requestRoutesStorage(App& app)
258 {
259     BMCWEB_ROUTE(app, "/redfish/v1/Systems/system/Storage/1/")
260         .privileges(redfish::privileges::getStorage)
261         .methods(boost::beast::http::verb::get)(
262             [&app](const crow::Request& req,
263                    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp) {
264         if (!redfish::setUpRedfishRoute(app, req, asyncResp))
265         {
266             return;
267         }
268         asyncResp->res.jsonValue["@odata.type"] = "#Storage.v1_7_1.Storage";
269         asyncResp->res.jsonValue["@odata.id"] =
270             "/redfish/v1/Systems/system/Storage/1";
271         asyncResp->res.jsonValue["Name"] = "Storage";
272         asyncResp->res.jsonValue["Id"] = "1";
273         asyncResp->res.jsonValue["Status"]["State"] = "Enabled";
274 
275         auto health = std::make_shared<HealthPopulate>(asyncResp);
276         health->populate();
277 
278         getDrives(asyncResp, health);
279         getStorageControllers(asyncResp, health);
280         });
281 }
282 
283 inline void getDriveAsset(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
284                           const std::string& connectionName,
285                           const std::string& path)
286 {
287     sdbusplus::asio::getAllProperties(
288         *crow::connections::systemBus, connectionName, path,
289         "xyz.openbmc_project.Inventory.Decorator.Asset",
290         [asyncResp](const boost::system::error_code ec,
291                     const std::vector<
292                         std::pair<std::string, dbus::utility::DbusVariantType>>&
293                         propertiesList) {
294         if (ec)
295         {
296             // this interface isn't necessary
297             return;
298         }
299 
300         const std::string* partNumber = nullptr;
301         const std::string* serialNumber = nullptr;
302         const std::string* manufacturer = nullptr;
303         const std::string* model = nullptr;
304 
305         const bool success = sdbusplus::unpackPropertiesNoThrow(
306             dbus_utils::UnpackErrorPrinter(), propertiesList, "PartNumber",
307             partNumber, "SerialNumber", serialNumber, "Manufacturer",
308             manufacturer, "Model", model);
309 
310         if (!success)
311         {
312             messages::internalError(asyncResp->res);
313             return;
314         }
315 
316         if (partNumber != nullptr)
317         {
318             asyncResp->res.jsonValue["PartNumber"] = *partNumber;
319         }
320 
321         if (serialNumber != nullptr)
322         {
323             asyncResp->res.jsonValue["SerialNumber"] = *serialNumber;
324         }
325 
326         if (manufacturer != nullptr)
327         {
328             asyncResp->res.jsonValue["Manufacturer"] = *manufacturer;
329         }
330 
331         if (model != nullptr)
332         {
333             asyncResp->res.jsonValue["Model"] = *model;
334         }
335         });
336 }
337 
338 inline void getDrivePresent(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
339                             const std::string& connectionName,
340                             const std::string& path)
341 {
342     sdbusplus::asio::getProperty<bool>(
343         *crow::connections::systemBus, connectionName, path,
344         "xyz.openbmc_project.Inventory.Item", "Present",
345         [asyncResp, path](const boost::system::error_code ec,
346                           const bool enabled) {
347         // this interface isn't necessary, only check it if
348         // we get a good return
349         if (ec)
350         {
351             return;
352         }
353 
354         if (!enabled)
355         {
356             asyncResp->res.jsonValue["Status"]["State"] = "Disabled";
357         }
358         });
359 }
360 
361 inline void getDriveState(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
362                           const std::string& connectionName,
363                           const std::string& path)
364 {
365     sdbusplus::asio::getProperty<bool>(
366         *crow::connections::systemBus, connectionName, path,
367         "xyz.openbmc_project.State.Drive", "Rebuilding",
368         [asyncResp](const boost::system::error_code ec, const bool updating) {
369         // this interface isn't necessary, only check it
370         // if we get a good return
371         if (ec)
372         {
373             return;
374         }
375 
376         // updating and disabled in the backend shouldn't be
377         // able to be set at the same time, so we don't need
378         // to check for the race condition of these two
379         // calls
380         if (updating)
381         {
382             asyncResp->res.jsonValue["Status"]["State"] = "Updating";
383         }
384         });
385 }
386 
387 inline std::optional<std::string> convertDriveType(const std::string& type)
388 {
389     if (type == "xyz.openbmc_project.Inventory.Item.Drive.DriveType.HDD")
390     {
391         return "HDD";
392     }
393     if (type == "xyz.openbmc_project.Inventory.Item.Drive.DriveType.SSD")
394     {
395         return "SSD";
396     }
397 
398     return std::nullopt;
399 }
400 
401 inline std::optional<std::string> convertDriveProtocol(const std::string& proto)
402 {
403     if (proto == "xyz.openbmc_project.Inventory.Item.Drive.DriveProtocol.SAS")
404     {
405         return "SAS";
406     }
407     if (proto == "xyz.openbmc_project.Inventory.Item.Drive.DriveProtocol.SATA")
408     {
409         return "SATA";
410     }
411     if (proto == "xyz.openbmc_project.Inventory.Item.Drive.DriveProtocol.NVMe")
412     {
413         return "NVMe";
414     }
415     if (proto == "xyz.openbmc_project.Inventory.Item.Drive.DriveProtocol.FC")
416     {
417         return "FC";
418     }
419 
420     return std::nullopt;
421 }
422 
423 inline void
424     getDriveItemProperties(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
425                            const std::string& connectionName,
426                            const std::string& path)
427 {
428     sdbusplus::asio::getAllProperties(
429         *crow::connections::systemBus, connectionName, path,
430         "xyz.openbmc_project.Inventory.Item.Drive",
431         [asyncResp](const boost::system::error_code ec,
432                     const std::vector<
433                         std::pair<std::string, dbus::utility::DbusVariantType>>&
434                         propertiesList) {
435         if (ec)
436         {
437             // this interface isn't required
438             return;
439         }
440         for (const std::pair<std::string, dbus::utility::DbusVariantType>&
441                  property : propertiesList)
442         {
443             const std::string& propertyName = property.first;
444             if (propertyName == "Type")
445             {
446                 const std::string* value =
447                     std::get_if<std::string>(&property.second);
448                 if (value == nullptr)
449                 {
450                     // illegal property
451                     BMCWEB_LOG_ERROR << "Illegal property: Type";
452                     messages::internalError(asyncResp->res);
453                     return;
454                 }
455 
456                 std::optional<std::string> mediaType = convertDriveType(*value);
457                 if (!mediaType)
458                 {
459                     BMCWEB_LOG_ERROR << "Unsupported DriveType Interface: "
460                                      << *value;
461                     messages::internalError(asyncResp->res);
462                     return;
463                 }
464 
465                 asyncResp->res.jsonValue["MediaType"] = *mediaType;
466             }
467             else if (propertyName == "Capacity")
468             {
469                 const uint64_t* capacity =
470                     std::get_if<uint64_t>(&property.second);
471                 if (capacity == nullptr)
472                 {
473                     BMCWEB_LOG_ERROR << "Illegal property: Capacity";
474                     messages::internalError(asyncResp->res);
475                     return;
476                 }
477                 if (*capacity == 0)
478                 {
479                     // drive capacity not known
480                     continue;
481                 }
482 
483                 asyncResp->res.jsonValue["CapacityBytes"] = *capacity;
484             }
485             else if (propertyName == "Protocol")
486             {
487                 const std::string* value =
488                     std::get_if<std::string>(&property.second);
489                 if (value == nullptr)
490                 {
491                     BMCWEB_LOG_ERROR << "Illegal property: Protocol";
492                     messages::internalError(asyncResp->res);
493                     return;
494                 }
495 
496                 std::optional<std::string> proto = convertDriveProtocol(*value);
497                 if (!proto)
498                 {
499                     BMCWEB_LOG_ERROR << "Unsupported DrivePrototype Interface: "
500                                      << *value;
501                     messages::internalError(asyncResp->res);
502                     return;
503                 }
504                 asyncResp->res.jsonValue["Protocol"] = *proto;
505             }
506             else if (propertyName == "PredictedMediaLifeLeftPercent")
507             {
508                 const uint8_t* lifeLeft =
509                     std::get_if<uint8_t>(&property.second);
510                 if (lifeLeft == nullptr)
511                 {
512                     BMCWEB_LOG_ERROR
513                         << "Illegal property: PredictedMediaLifeLeftPercent";
514                     messages::internalError(asyncResp->res);
515                     return;
516                 }
517                 // 255 means reading the value is not supported
518                 if (*lifeLeft != 255)
519                 {
520                     asyncResp->res.jsonValue["PredictedMediaLifeLeftPercent"] =
521                         *lifeLeft;
522                 }
523             }
524         }
525         });
526 }
527 
528 static void addAllDriveInfo(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
529                             const std::string& connectionName,
530                             const std::string& path,
531                             const std::vector<std::string>& interfaces)
532 {
533     for (const std::string& interface : interfaces)
534     {
535         if (interface == "xyz.openbmc_project.Inventory.Decorator.Asset")
536         {
537             getDriveAsset(asyncResp, connectionName, path);
538         }
539         else if (interface == "xyz.openbmc_project.Inventory.Item")
540         {
541             getDrivePresent(asyncResp, connectionName, path);
542         }
543         else if (interface == "xyz.openbmc_project.State.Drive")
544         {
545             getDriveState(asyncResp, connectionName, path);
546         }
547         else if (interface == "xyz.openbmc_project.Inventory.Item.Drive")
548         {
549             getDriveItemProperties(asyncResp, connectionName, path);
550         }
551     }
552 }
553 
554 inline void requestRoutesDrive(App& app)
555 {
556     BMCWEB_ROUTE(app, "/redfish/v1/Systems/<str>/Storage/1/Drives/<str>/")
557         .privileges(redfish::privileges::getDrive)
558         .methods(boost::beast::http::verb::get)(
559             [&app](const crow::Request& req,
560                    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
561                    const std::string& systemName, const std::string& driveId) {
562         if (!redfish::setUpRedfishRoute(app, req, asyncResp))
563         {
564             return;
565         }
566         if (systemName != "system")
567         {
568             messages::resourceNotFound(asyncResp->res, "ComputerSystem",
569                                        systemName);
570             return;
571         }
572 
573         constexpr std::array<std::string_view, 1> interfaces = {
574             "xyz.openbmc_project.Inventory.Item.Drive"};
575         dbus::utility::getSubTree(
576             "/xyz/openbmc_project/inventory", 0, interfaces,
577             [asyncResp,
578              driveId](const boost::system::error_code& ec,
579                       const dbus::utility::MapperGetSubTreeResponse& subtree) {
580             if (ec)
581             {
582                 BMCWEB_LOG_ERROR << "Drive mapper call error";
583                 messages::internalError(asyncResp->res);
584                 return;
585             }
586 
587             auto drive = std::find_if(
588                 subtree.begin(), subtree.end(),
589                 [&driveId](
590                     const std::pair<std::string,
591                                     dbus::utility::MapperServiceMap>& object) {
592                 return sdbusplus::message::object_path(object.first)
593                            .filename() == driveId;
594                 });
595 
596             if (drive == subtree.end())
597             {
598                 messages::resourceNotFound(asyncResp->res, "Drive", driveId);
599                 return;
600             }
601 
602             const std::string& path = drive->first;
603             const dbus::utility::MapperServiceMap& connectionNames =
604                 drive->second;
605 
606             asyncResp->res.jsonValue["@odata.type"] = "#Drive.v1_7_0.Drive";
607             asyncResp->res.jsonValue["@odata.id"] =
608                 "/redfish/v1/Systems/system/Storage/1/Drives/" + driveId;
609             asyncResp->res.jsonValue["Name"] = driveId;
610             asyncResp->res.jsonValue["Id"] = driveId;
611 
612             if (connectionNames.size() != 1)
613             {
614                 BMCWEB_LOG_ERROR << "Connection size " << connectionNames.size()
615                                  << ", not equal to 1";
616                 messages::internalError(asyncResp->res);
617                 return;
618             }
619 
620             getMainChassisId(
621                 asyncResp, [](const std::string& chassisId,
622                               const std::shared_ptr<bmcweb::AsyncResp>& aRsp) {
623                     aRsp->res.jsonValue["Links"]["Chassis"]["@odata.id"] =
624                         "/redfish/v1/Chassis/" + chassisId;
625                 });
626 
627             // default it to Enabled
628             asyncResp->res.jsonValue["Status"]["State"] = "Enabled";
629 
630             auto health = std::make_shared<HealthPopulate>(asyncResp);
631             health->inventory.emplace_back(path);
632             health->populate();
633 
634             addAllDriveInfo(asyncResp, connectionNames[0].first, path,
635                             connectionNames[0].second);
636             });
637         });
638 }
639 
640 /**
641  * Chassis drives, this URL will show all the DriveCollection
642  * information
643  */
644 inline void chassisDriveCollectionGet(
645     crow::App& app, const crow::Request& req,
646     const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
647     const std::string& chassisId)
648 {
649     if (!redfish::setUpRedfishRoute(app, req, asyncResp))
650     {
651         return;
652     }
653 
654     // mapper call lambda
655     constexpr std::array<std::string_view, 2> interfaces = {
656         "xyz.openbmc_project.Inventory.Item.Board",
657         "xyz.openbmc_project.Inventory.Item.Chassis"};
658     dbus::utility::getSubTree(
659         "/xyz/openbmc_project/inventory", 0, interfaces,
660         [asyncResp,
661          chassisId](const boost::system::error_code& ec,
662                     const dbus::utility::MapperGetSubTreeResponse& subtree) {
663         if (ec)
664         {
665             if (ec == boost::system::errc::host_unreachable)
666             {
667                 messages::resourceNotFound(asyncResp->res, "Chassis",
668                                            chassisId);
669                 return;
670             }
671             messages::internalError(asyncResp->res);
672             return;
673         }
674 
675         // Iterate over all retrieved ObjectPaths.
676         for (const auto& [path, connectionNames] : subtree)
677         {
678             sdbusplus::message::object_path objPath(path);
679             if (objPath.filename() != chassisId)
680             {
681                 continue;
682             }
683 
684             if (connectionNames.empty())
685             {
686                 BMCWEB_LOG_ERROR << "Got 0 Connection names";
687                 continue;
688             }
689 
690             asyncResp->res.jsonValue["@odata.type"] =
691                 "#DriveCollection.DriveCollection";
692             asyncResp->res.jsonValue["@odata.id"] =
693                 crow::utility::urlFromPieces("redfish", "v1", "Chassis",
694                                              chassisId, "Drives");
695             asyncResp->res.jsonValue["Name"] = "Drive Collection";
696 
697             // Association lambda
698             sdbusplus::asio::getProperty<std::vector<std::string>>(
699                 *crow::connections::systemBus,
700                 "xyz.openbmc_project.ObjectMapper", path + "/drive",
701                 "xyz.openbmc_project.Association", "endpoints",
702                 [asyncResp, chassisId](const boost::system::error_code ec3,
703                                        const std::vector<std::string>& resp) {
704                 if (ec3)
705                 {
706                     BMCWEB_LOG_ERROR << "Error in chassis Drive association ";
707                 }
708                 nlohmann::json& members = asyncResp->res.jsonValue["Members"];
709                 // important if array is empty
710                 members = nlohmann::json::array();
711 
712                 std::vector<std::string> leafNames;
713                 for (const auto& drive : resp)
714                 {
715                     sdbusplus::message::object_path drivePath(drive);
716                     leafNames.push_back(drivePath.filename());
717                 }
718 
719                 std::sort(leafNames.begin(), leafNames.end(),
720                           AlphanumLess<std::string>());
721 
722                 for (const auto& leafName : leafNames)
723                 {
724                     nlohmann::json::object_t member;
725                     member["@odata.id"] = crow::utility::urlFromPieces(
726                         "redfish", "v1", "Chassis", chassisId, "Drives",
727                         leafName);
728                     members.push_back(std::move(member));
729                     // navigation links will be registered in next patch set
730                 }
731                 asyncResp->res.jsonValue["Members@odata.count"] = resp.size();
732                 }); // end association lambda
733 
734         } // end Iterate over all retrieved ObjectPaths
735         });
736 }
737 
738 inline void requestRoutesChassisDrive(App& app)
739 {
740     BMCWEB_ROUTE(app, "/redfish/v1/Chassis/<str>/Drives/")
741         .privileges(redfish::privileges::getDriveCollection)
742         .methods(boost::beast::http::verb::get)(
743             std::bind_front(chassisDriveCollectionGet, std::ref(app)));
744 }
745 
746 inline void buildDrive(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
747                        const std::string& chassisId,
748                        const std::string& driveName,
749                        const boost::system::error_code ec,
750                        const dbus::utility::MapperGetSubTreeResponse& subtree)
751 {
752 
753     if (ec)
754     {
755         BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
756         messages::internalError(asyncResp->res);
757         return;
758     }
759 
760     // Iterate over all retrieved ObjectPaths.
761     for (const auto& [path, connectionNames] : subtree)
762     {
763         sdbusplus::message::object_path objPath(path);
764         if (objPath.filename() != driveName)
765         {
766             continue;
767         }
768 
769         if (connectionNames.empty())
770         {
771             BMCWEB_LOG_ERROR << "Got 0 Connection names";
772             continue;
773         }
774 
775         asyncResp->res.jsonValue["@odata.id"] = crow::utility::urlFromPieces(
776             "redfish", "v1", "Chassis", chassisId, "Drives", driveName);
777 
778         asyncResp->res.jsonValue["@odata.type"] = "#Drive.v1_7_0.Drive";
779         asyncResp->res.jsonValue["Name"] = driveName;
780         asyncResp->res.jsonValue["Id"] = driveName;
781         // default it to Enabled
782         asyncResp->res.jsonValue["Status"]["State"] = "Enabled";
783 
784         nlohmann::json::object_t linkChassisNav;
785         linkChassisNav["@odata.id"] =
786             crow::utility::urlFromPieces("redfish", "v1", "Chassis", chassisId);
787         asyncResp->res.jsonValue["Links"]["Chassis"] = linkChassisNav;
788 
789         addAllDriveInfo(asyncResp, connectionNames[0].first, path,
790                         connectionNames[0].second);
791     }
792 }
793 
794 inline void
795     matchAndFillDrive(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
796                       const std::string& chassisId,
797                       const std::string& driveName,
798                       const std::vector<std::string>& resp)
799 {
800 
801     for (const std::string& drivePath : resp)
802     {
803         sdbusplus::message::object_path path(drivePath);
804         std::string leaf = path.filename();
805         if (leaf != driveName)
806         {
807             continue;
808         }
809         //  mapper call drive
810         constexpr std::array<std::string_view, 1> driveInterface = {
811             "xyz.openbmc_project.Inventory.Item.Drive"};
812         dbus::utility::getSubTree(
813             "/xyz/openbmc_project/inventory", 0, driveInterface,
814             [asyncResp, chassisId, driveName](
815                 const boost::system::error_code& ec,
816                 const dbus::utility::MapperGetSubTreeResponse& subtree) {
817             buildDrive(asyncResp, chassisId, driveName, ec, subtree);
818             });
819     }
820 }
821 
822 inline void
823     handleChassisDriveGet(crow::App& app, const crow::Request& req,
824                           const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
825                           const std::string& chassisId,
826                           const std::string& driveName)
827 {
828     if (!redfish::setUpRedfishRoute(app, req, asyncResp))
829     {
830         return;
831     }
832     constexpr std::array<std::string_view, 2> interfaces = {
833         "xyz.openbmc_project.Inventory.Item.Board",
834         "xyz.openbmc_project.Inventory.Item.Chassis"};
835 
836     // mapper call chassis
837     dbus::utility::getSubTree(
838         "/xyz/openbmc_project/inventory", 0, interfaces,
839         [asyncResp, chassisId,
840          driveName](const boost::system::error_code& ec,
841                     const dbus::utility::MapperGetSubTreeResponse& subtree) {
842         if (ec)
843         {
844             messages::internalError(asyncResp->res);
845             return;
846         }
847 
848         // Iterate over all retrieved ObjectPaths.
849         for (const auto& [path, connectionNames] : subtree)
850         {
851             sdbusplus::message::object_path objPath(path);
852             if (objPath.filename() != chassisId)
853             {
854                 continue;
855             }
856 
857             if (connectionNames.empty())
858             {
859                 BMCWEB_LOG_ERROR << "Got 0 Connection names";
860                 continue;
861             }
862 
863             sdbusplus::asio::getProperty<std::vector<std::string>>(
864                 *crow::connections::systemBus,
865                 "xyz.openbmc_project.ObjectMapper", path + "/drive",
866                 "xyz.openbmc_project.Association", "endpoints",
867                 [asyncResp, chassisId,
868                  driveName](const boost::system::error_code ec3,
869                             const std::vector<std::string>& resp) {
870                 if (ec3)
871                 {
872                     return; // no drives = no failures
873                 }
874                 matchAndFillDrive(asyncResp, chassisId, driveName, resp);
875                 });
876             break;
877         }
878         });
879 }
880 
881 /**
882  * This URL will show the drive interface for the specific drive in the chassis
883  */
884 inline void requestRoutesChassisDriveName(App& app)
885 {
886     BMCWEB_ROUTE(app, "/redfish/v1/Chassis/<str>/Drives/<str>/")
887         .privileges(redfish::privileges::getChassis)
888         .methods(boost::beast::http::verb::get)(
889             std::bind_front(handleChassisDriveGet, std::ref(app)));
890 }
891 
892 } // namespace redfish
893