xref: /openbmc/bmcweb/redfish-core/lib/storage.hpp (revision 3e72c202) 
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 "generated/enums/drive.hpp"
21 #include "health.hpp"
22 #include "human_sort.hpp"
23 #include "openbmc_dbus_rest.hpp"
24 #include "query.hpp"
25 #include "redfish_util.hpp"
26 #include "registries/privilege_registry.hpp"
27 #include "utils/dbus_utils.hpp"
28 
29 #include <boost/system/error_code.hpp>
30 #include <boost/url/format.hpp>
31 #include <sdbusplus/asio/property.hpp>
32 #include <sdbusplus/unpack_properties.hpp>
33 
34 #include <array>
35 #include <string_view>
36 
37 namespace redfish
38 {
39 inline void requestRoutesStorageCollection(App& app)
40 {
41     BMCWEB_ROUTE(app, "/redfish/v1/Systems/<str>/Storage/")
42         .privileges(redfish::privileges::getStorageCollection)
43         .methods(boost::beast::http::verb::get)(
44             [&app](const crow::Request& req,
45                    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
46                    const std::string& systemName) {
47         if (!redfish::setUpRedfishRoute(app, req, asyncResp))
48         {
49             return;
50         }
51         if (systemName != "system")
52         {
53             messages::resourceNotFound(asyncResp->res, "ComputerSystem",
54                                        systemName);
55             return;
56         }
57 
58         asyncResp->res.jsonValue["@odata.type"] =
59             "#StorageCollection.StorageCollection";
60         asyncResp->res.jsonValue["@odata.id"] =
61             "/redfish/v1/Systems/system/Storage";
62         asyncResp->res.jsonValue["Name"] = "Storage Collection";
63         nlohmann::json::array_t members;
64         nlohmann::json::object_t member;
65         member["@odata.id"] = "/redfish/v1/Systems/system/Storage/1";
66         members.emplace_back(member);
67         asyncResp->res.jsonValue["Members"] = std::move(members);
68         asyncResp->res.jsonValue["Members@odata.count"] = 1;
69         });
70 }
71 
72 inline void getDrives(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
73                       const std::shared_ptr<HealthPopulate>& health)
74 {
75     const std::array<std::string_view, 1> interfaces = {
76         "xyz.openbmc_project.Inventory.Item.Drive"};
77     dbus::utility::getSubTreePaths(
78         "/xyz/openbmc_project/inventory", 0, interfaces,
79         [asyncResp, health](
80             const boost::system::error_code& ec,
81             const dbus::utility::MapperGetSubTreePathsResponse& driveList) {
82         if (ec)
83         {
84             BMCWEB_LOG_ERROR << "Drive mapper call error";
85             messages::internalError(asyncResp->res);
86             return;
87         }
88 
89         nlohmann::json& driveArray = asyncResp->res.jsonValue["Drives"];
90         driveArray = nlohmann::json::array();
91         auto& count = asyncResp->res.jsonValue["Drives@odata.count"];
92         count = 0;
93 
94         health->inventory.insert(health->inventory.end(), driveList.begin(),
95                                  driveList.end());
96 
97         for (const std::string& drive : driveList)
98         {
99             sdbusplus::message::object_path object(drive);
100             if (object.filename().empty())
101             {
102                 BMCWEB_LOG_ERROR << "Failed to find filename in " << drive;
103                 return;
104             }
105 
106             nlohmann::json::object_t driveJson;
107             driveJson["@odata.id"] = boost::urls::format(
108                 "/redfish/v1/Systems/system/Storage/1/Drives/{}",
109                 object.filename());
110             driveArray.emplace_back(std::move(driveJson));
111         }
112 
113         count = driveArray.size();
114         });
115 }
116 
117 inline void
118     getStorageControllers(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
119                           const std::shared_ptr<HealthPopulate>& health)
120 {
121     constexpr std::array<std::string_view, 1> interfaces = {
122         "xyz.openbmc_project.Inventory.Item.StorageController"};
123     dbus::utility::getSubTree(
124         "/xyz/openbmc_project/inventory", 0, interfaces,
125         [asyncResp,
126          health](const boost::system::error_code& ec,
127                  const dbus::utility::MapperGetSubTreeResponse& subtree) {
128         if (ec || subtree.empty())
129         {
130             // doesn't have to be there
131             return;
132         }
133 
134         nlohmann::json& root = asyncResp->res.jsonValue["StorageControllers"];
135         root = nlohmann::json::array();
136         for (const auto& [path, interfaceDict] : subtree)
137         {
138             sdbusplus::message::object_path object(path);
139             std::string id = object.filename();
140             if (id.empty())
141             {
142                 BMCWEB_LOG_ERROR << "Failed to find filename in " << path;
143                 return;
144             }
145 
146             if (interfaceDict.size() != 1)
147             {
148                 BMCWEB_LOG_ERROR << "Connection size " << interfaceDict.size()
149                                  << ", greater than 1";
150                 messages::internalError(asyncResp->res);
151                 return;
152             }
153 
154             const std::string& connectionName = interfaceDict.front().first;
155 
156             size_t index = root.size();
157             nlohmann::json& storageController =
158                 root.emplace_back(nlohmann::json::object());
159 
160             storageController["@odata.type"] =
161                 "#Storage.v1_7_0.StorageController";
162             storageController["@odata.id"] = boost::urls::format(
163                 "/redfish/v1/Systems/system/Storage/1#{}",
164                 ("/StorageControllers"_json_pointer / index).to_string());
165             storageController["Name"] = id;
166             storageController["MemberId"] = id;
167             storageController["Status"]["State"] = "Enabled";
168 
169             sdbusplus::asio::getProperty<bool>(
170                 *crow::connections::systemBus, connectionName, path,
171                 "xyz.openbmc_project.Inventory.Item", "Present",
172                 [asyncResp, index](const boost::system::error_code& ec2,
173                                    bool isPresent) {
174                 // this interface isn't necessary, only check it
175                 // if we get a good return
176                 if (ec2)
177                 {
178                     return;
179                 }
180                 if (!isPresent)
181                 {
182                     asyncResp->res.jsonValue["StorageControllers"][index]
183                                             ["Status"]["State"] = "Absent";
184                 }
185                 });
186 
187             sdbusplus::asio::getAllProperties(
188                 *crow::connections::systemBus, connectionName, path,
189                 "xyz.openbmc_project.Inventory.Decorator.Asset",
190                 [asyncResp, index](
191                     const boost::system::error_code& ec2,
192                     const std::vector<
193                         std::pair<std::string, dbus::utility::DbusVariantType>>&
194                         propertiesList) {
195                 if (ec2)
196                 {
197                     // this interface isn't necessary
198                     return;
199                 }
200 
201                 const std::string* partNumber = nullptr;
202                 const std::string* serialNumber = nullptr;
203                 const std::string* manufacturer = nullptr;
204                 const std::string* model = nullptr;
205 
206                 const bool success = sdbusplus::unpackPropertiesNoThrow(
207                     dbus_utils::UnpackErrorPrinter(), propertiesList,
208                     "PartNumber", partNumber, "SerialNumber", serialNumber,
209                     "Manufacturer", manufacturer, "Model", model);
210 
211                 if (!success)
212                 {
213                     messages::internalError(asyncResp->res);
214                     return;
215                 }
216 
217                 nlohmann::json& controller =
218                     asyncResp->res.jsonValue["StorageControllers"][index];
219 
220                 if (partNumber != nullptr)
221                 {
222                     controller["PartNumber"] = *partNumber;
223                 }
224 
225                 if (serialNumber != nullptr)
226                 {
227                     controller["SerialNumber"] = *serialNumber;
228                 }
229 
230                 if (manufacturer != nullptr)
231                 {
232                     controller["Manufacturer"] = *manufacturer;
233                 }
234 
235                 if (model != nullptr)
236                 {
237                     controller["Model"] = *model;
238                 }
239                 });
240         }
241 
242         // this is done after we know the json array will no longer
243         // be resized, as json::array uses vector underneath and we
244         // need references to its members that won't change
245         size_t count = 0;
246         // Pointer based on |asyncResp->res.jsonValue|
247         nlohmann::json::json_pointer rootPtr =
248             "/StorageControllers"_json_pointer;
249         for (const auto& [path, interfaceDict] : subtree)
250         {
251             auto subHealth = std::make_shared<HealthPopulate>(
252                 asyncResp, rootPtr / count / "Status");
253             subHealth->inventory.emplace_back(path);
254             health->inventory.emplace_back(path);
255             health->children.emplace_back(subHealth);
256             count++;
257         }
258         });
259 }
260 
261 inline void requestRoutesStorage(App& app)
262 {
263     BMCWEB_ROUTE(app, "/redfish/v1/Systems/system/Storage/1/")
264         .privileges(redfish::privileges::getStorage)
265         .methods(boost::beast::http::verb::get)(
266             [&app](const crow::Request& req,
267                    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp) {
268         if (!redfish::setUpRedfishRoute(app, req, asyncResp))
269         {
270             return;
271         }
272         asyncResp->res.jsonValue["@odata.type"] = "#Storage.v1_7_1.Storage";
273         asyncResp->res.jsonValue["@odata.id"] =
274             "/redfish/v1/Systems/system/Storage/1";
275         asyncResp->res.jsonValue["Name"] = "Storage";
276         asyncResp->res.jsonValue["Id"] = "1";
277         asyncResp->res.jsonValue["Status"]["State"] = "Enabled";
278 
279         auto health = std::make_shared<HealthPopulate>(asyncResp);
280         health->populate();
281 
282         getDrives(asyncResp, health);
283         getStorageControllers(asyncResp, health);
284         });
285 }
286 
287 inline void getDriveAsset(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
288                           const std::string& connectionName,
289                           const std::string& path)
290 {
291     sdbusplus::asio::getAllProperties(
292         *crow::connections::systemBus, connectionName, path,
293         "xyz.openbmc_project.Inventory.Decorator.Asset",
294         [asyncResp](const boost::system::error_code& ec,
295                     const std::vector<
296                         std::pair<std::string, dbus::utility::DbusVariantType>>&
297                         propertiesList) {
298         if (ec)
299         {
300             // this interface isn't necessary
301             return;
302         }
303 
304         const std::string* partNumber = nullptr;
305         const std::string* serialNumber = nullptr;
306         const std::string* manufacturer = nullptr;
307         const std::string* model = nullptr;
308 
309         const bool success = sdbusplus::unpackPropertiesNoThrow(
310             dbus_utils::UnpackErrorPrinter(), propertiesList, "PartNumber",
311             partNumber, "SerialNumber", serialNumber, "Manufacturer",
312             manufacturer, "Model", model);
313 
314         if (!success)
315         {
316             messages::internalError(asyncResp->res);
317             return;
318         }
319 
320         if (partNumber != nullptr)
321         {
322             asyncResp->res.jsonValue["PartNumber"] = *partNumber;
323         }
324 
325         if (serialNumber != nullptr)
326         {
327             asyncResp->res.jsonValue["SerialNumber"] = *serialNumber;
328         }
329 
330         if (manufacturer != nullptr)
331         {
332             asyncResp->res.jsonValue["Manufacturer"] = *manufacturer;
333         }
334 
335         if (model != nullptr)
336         {
337             asyncResp->res.jsonValue["Model"] = *model;
338         }
339         });
340 }
341 
342 inline void getDrivePresent(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
343                             const std::string& connectionName,
344                             const std::string& path)
345 {
346     sdbusplus::asio::getProperty<bool>(
347         *crow::connections::systemBus, connectionName, path,
348         "xyz.openbmc_project.Inventory.Item", "Present",
349         [asyncResp, path](const boost::system::error_code& ec,
350                           const bool isPresent) {
351         // this interface isn't necessary, only check it if
352         // we get a good return
353         if (ec)
354         {
355             return;
356         }
357 
358         if (!isPresent)
359         {
360             asyncResp->res.jsonValue["Status"]["State"] = "Absent";
361         }
362         });
363 }
364 
365 inline void getDriveState(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
366                           const std::string& connectionName,
367                           const std::string& path)
368 {
369     sdbusplus::asio::getProperty<bool>(
370         *crow::connections::systemBus, connectionName, path,
371         "xyz.openbmc_project.State.Drive", "Rebuilding",
372         [asyncResp](const boost::system::error_code& ec, const bool updating) {
373         // this interface isn't necessary, only check it
374         // if we get a good return
375         if (ec)
376         {
377             return;
378         }
379 
380         // updating and disabled in the backend shouldn't be
381         // able to be set at the same time, so we don't need
382         // to check for the race condition of these two
383         // calls
384         if (updating)
385         {
386             asyncResp->res.jsonValue["Status"]["State"] = "Updating";
387         }
388         });
389 }
390 
391 inline std::optional<std::string> convertDriveType(const std::string& type)
392 {
393     if (type == "xyz.openbmc_project.Inventory.Item.Drive.DriveType.HDD")
394     {
395         return "HDD";
396     }
397     if (type == "xyz.openbmc_project.Inventory.Item.Drive.DriveType.SSD")
398     {
399         return "SSD";
400     }
401 
402     return std::nullopt;
403 }
404 
405 inline std::optional<std::string> convertDriveProtocol(const std::string& proto)
406 {
407     if (proto == "xyz.openbmc_project.Inventory.Item.Drive.DriveProtocol.SAS")
408     {
409         return "SAS";
410     }
411     if (proto == "xyz.openbmc_project.Inventory.Item.Drive.DriveProtocol.SATA")
412     {
413         return "SATA";
414     }
415     if (proto == "xyz.openbmc_project.Inventory.Item.Drive.DriveProtocol.NVMe")
416     {
417         return "NVMe";
418     }
419     if (proto == "xyz.openbmc_project.Inventory.Item.Drive.DriveProtocol.FC")
420     {
421         return "FC";
422     }
423 
424     return std::nullopt;
425 }
426 
427 inline void
428     getDriveItemProperties(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
429                            const std::string& connectionName,
430                            const std::string& path)
431 {
432     sdbusplus::asio::getAllProperties(
433         *crow::connections::systemBus, connectionName, path,
434         "xyz.openbmc_project.Inventory.Item.Drive",
435         [asyncResp](const boost::system::error_code& ec,
436                     const std::vector<
437                         std::pair<std::string, dbus::utility::DbusVariantType>>&
438                         propertiesList) {
439         if (ec)
440         {
441             // this interface isn't required
442             return;
443         }
444         const std::string* encryptionStatus = nullptr;
445         const bool* isLocked = nullptr;
446         for (const std::pair<std::string, dbus::utility::DbusVariantType>&
447                  property : propertiesList)
448         {
449             const std::string& propertyName = property.first;
450             if (propertyName == "Type")
451             {
452                 const std::string* value =
453                     std::get_if<std::string>(&property.second);
454                 if (value == nullptr)
455                 {
456                     // illegal property
457                     BMCWEB_LOG_ERROR << "Illegal property: Type";
458                     messages::internalError(asyncResp->res);
459                     return;
460                 }
461 
462                 std::optional<std::string> mediaType = convertDriveType(*value);
463                 if (!mediaType)
464                 {
465                     BMCWEB_LOG_ERROR << "Unsupported DriveType Interface: "
466                                      << *value;
467                     messages::internalError(asyncResp->res);
468                     return;
469                 }
470 
471                 asyncResp->res.jsonValue["MediaType"] = *mediaType;
472             }
473             else if (propertyName == "Capacity")
474             {
475                 const uint64_t* capacity =
476                     std::get_if<uint64_t>(&property.second);
477                 if (capacity == nullptr)
478                 {
479                     BMCWEB_LOG_ERROR << "Illegal property: Capacity";
480                     messages::internalError(asyncResp->res);
481                     return;
482                 }
483                 if (*capacity == 0)
484                 {
485                     // drive capacity not known
486                     continue;
487                 }
488 
489                 asyncResp->res.jsonValue["CapacityBytes"] = *capacity;
490             }
491             else if (propertyName == "Protocol")
492             {
493                 const std::string* value =
494                     std::get_if<std::string>(&property.second);
495                 if (value == nullptr)
496                 {
497                     BMCWEB_LOG_ERROR << "Illegal property: Protocol";
498                     messages::internalError(asyncResp->res);
499                     return;
500                 }
501 
502                 std::optional<std::string> proto = convertDriveProtocol(*value);
503                 if (!proto)
504                 {
505                     BMCWEB_LOG_ERROR << "Unsupported DrivePrototype Interface: "
506                                      << *value;
507                     messages::internalError(asyncResp->res);
508                     return;
509                 }
510                 asyncResp->res.jsonValue["Protocol"] = *proto;
511             }
512             else if (propertyName == "PredictedMediaLifeLeftPercent")
513             {
514                 const uint8_t* lifeLeft =
515                     std::get_if<uint8_t>(&property.second);
516                 if (lifeLeft == nullptr)
517                 {
518                     BMCWEB_LOG_ERROR
519                         << "Illegal property: PredictedMediaLifeLeftPercent";
520                     messages::internalError(asyncResp->res);
521                     return;
522                 }
523                 // 255 means reading the value is not supported
524                 if (*lifeLeft != 255)
525                 {
526                     asyncResp->res.jsonValue["PredictedMediaLifeLeftPercent"] =
527                         *lifeLeft;
528                 }
529             }
530             else if (propertyName == "EncryptionStatus")
531             {
532                 encryptionStatus = std::get_if<std::string>(&property.second);
533                 if (encryptionStatus == nullptr)
534                 {
535                     BMCWEB_LOG_ERROR << "Illegal property: EncryptionStatus";
536                     messages::internalError(asyncResp->res);
537                     return;
538                 }
539             }
540             else if (propertyName == "Locked")
541             {
542                 isLocked = std::get_if<bool>(&property.second);
543                 if (isLocked == nullptr)
544                 {
545                     BMCWEB_LOG_ERROR << "Illegal property: Locked";
546                     messages::internalError(asyncResp->res);
547                     return;
548                 }
549             }
550         }
551 
552         if (encryptionStatus == nullptr || isLocked == nullptr ||
553             *encryptionStatus ==
554                 "xyz.openbmc_project.Drive.DriveEncryptionState.Unknown")
555         {
556             return;
557         }
558         if (*encryptionStatus !=
559             "xyz.openbmc_project.Drive.DriveEncryptionState.Encrypted")
560         {
561             //"The drive is not currently encrypted."
562             asyncResp->res.jsonValue["EncryptionStatus"] =
563                 drive::EncryptionStatus::Unencrypted;
564             return;
565         }
566         if (*isLocked)
567         {
568             //"The drive is currently encrypted and the data is not
569             // accessible to the user."
570             asyncResp->res.jsonValue["EncryptionStatus"] =
571                 drive::EncryptionStatus::Locked;
572             return;
573         }
574         // if not locked
575         // "The drive is currently encrypted but the data is accessible
576         // to the user in unencrypted form."
577         asyncResp->res.jsonValue["EncryptionStatus"] =
578             drive::EncryptionStatus::Unlocked;
579         });
580 }
581 
582 static void addAllDriveInfo(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
583                             const std::string& connectionName,
584                             const std::string& path,
585                             const std::vector<std::string>& interfaces)
586 {
587     for (const std::string& interface : interfaces)
588     {
589         if (interface == "xyz.openbmc_project.Inventory.Decorator.Asset")
590         {
591             getDriveAsset(asyncResp, connectionName, path);
592         }
593         else if (interface == "xyz.openbmc_project.Inventory.Item")
594         {
595             getDrivePresent(asyncResp, connectionName, path);
596         }
597         else if (interface == "xyz.openbmc_project.State.Drive")
598         {
599             getDriveState(asyncResp, connectionName, path);
600         }
601         else if (interface == "xyz.openbmc_project.Inventory.Item.Drive")
602         {
603             getDriveItemProperties(asyncResp, connectionName, path);
604         }
605     }
606 }
607 
608 inline void requestRoutesDrive(App& app)
609 {
610     BMCWEB_ROUTE(app, "/redfish/v1/Systems/<str>/Storage/1/Drives/<str>/")
611         .privileges(redfish::privileges::getDrive)
612         .methods(boost::beast::http::verb::get)(
613             [&app](const crow::Request& req,
614                    const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
615                    const std::string& systemName, const std::string& driveId) {
616         if (!redfish::setUpRedfishRoute(app, req, asyncResp))
617         {
618             return;
619         }
620         if (systemName != "system")
621         {
622             messages::resourceNotFound(asyncResp->res, "ComputerSystem",
623                                        systemName);
624             return;
625         }
626 
627         constexpr std::array<std::string_view, 1> interfaces = {
628             "xyz.openbmc_project.Inventory.Item.Drive"};
629         dbus::utility::getSubTree(
630             "/xyz/openbmc_project/inventory", 0, interfaces,
631             [asyncResp,
632              driveId](const boost::system::error_code& ec,
633                       const dbus::utility::MapperGetSubTreeResponse& subtree) {
634             if (ec)
635             {
636                 BMCWEB_LOG_ERROR << "Drive mapper call error";
637                 messages::internalError(asyncResp->res);
638                 return;
639             }
640 
641             auto drive = std::find_if(
642                 subtree.begin(), subtree.end(),
643                 [&driveId](
644                     const std::pair<std::string,
645                                     dbus::utility::MapperServiceMap>& object) {
646                 return sdbusplus::message::object_path(object.first)
647                            .filename() == driveId;
648                 });
649 
650             if (drive == subtree.end())
651             {
652                 messages::resourceNotFound(asyncResp->res, "Drive", driveId);
653                 return;
654             }
655 
656             const std::string& path = drive->first;
657             const dbus::utility::MapperServiceMap& connectionNames =
658                 drive->second;
659 
660             asyncResp->res.jsonValue["@odata.type"] = "#Drive.v1_7_0.Drive";
661             asyncResp->res.jsonValue["@odata.id"] = boost::urls::format(
662                 "/redfish/v1/Systems/system/Storage/1/Drives/{}", driveId);
663             asyncResp->res.jsonValue["Name"] = driveId;
664             asyncResp->res.jsonValue["Id"] = driveId;
665 
666             if (connectionNames.size() != 1)
667             {
668                 BMCWEB_LOG_ERROR << "Connection size " << connectionNames.size()
669                                  << ", not equal to 1";
670                 messages::internalError(asyncResp->res);
671                 return;
672             }
673 
674             getMainChassisId(
675                 asyncResp,
676                 [](const std::string& chassisId,
677                    const std::shared_ptr<bmcweb::AsyncResp>& aRsp) {
678                 aRsp->res.jsonValue["Links"]["Chassis"]["@odata.id"] =
679                     boost::urls::format("/redfish/v1/Chassis/{}", chassisId);
680                 });
681 
682             // default it to Enabled
683             asyncResp->res.jsonValue["Status"]["State"] = "Enabled";
684 
685             auto health = std::make_shared<HealthPopulate>(asyncResp);
686             health->inventory.emplace_back(path);
687             health->populate();
688 
689             addAllDriveInfo(asyncResp, connectionNames[0].first, path,
690                             connectionNames[0].second);
691             });
692         });
693 }
694 
695 /**
696  * Chassis drives, this URL will show all the DriveCollection
697  * information
698  */
699 inline void chassisDriveCollectionGet(
700     crow::App& app, const crow::Request& req,
701     const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
702     const std::string& chassisId)
703 {
704     if (!redfish::setUpRedfishRoute(app, req, asyncResp))
705     {
706         return;
707     }
708 
709     // mapper call lambda
710     constexpr std::array<std::string_view, 2> interfaces = {
711         "xyz.openbmc_project.Inventory.Item.Board",
712         "xyz.openbmc_project.Inventory.Item.Chassis"};
713     dbus::utility::getSubTree(
714         "/xyz/openbmc_project/inventory", 0, interfaces,
715         [asyncResp,
716          chassisId](const boost::system::error_code& ec,
717                     const dbus::utility::MapperGetSubTreeResponse& subtree) {
718         if (ec)
719         {
720             if (ec == boost::system::errc::host_unreachable)
721             {
722                 messages::resourceNotFound(asyncResp->res, "Chassis",
723                                            chassisId);
724                 return;
725             }
726             messages::internalError(asyncResp->res);
727             return;
728         }
729 
730         // Iterate over all retrieved ObjectPaths.
731         for (const auto& [path, connectionNames] : subtree)
732         {
733             sdbusplus::message::object_path objPath(path);
734             if (objPath.filename() != chassisId)
735             {
736                 continue;
737             }
738 
739             if (connectionNames.empty())
740             {
741                 BMCWEB_LOG_ERROR << "Got 0 Connection names";
742                 continue;
743             }
744 
745             asyncResp->res.jsonValue["@odata.type"] =
746                 "#DriveCollection.DriveCollection";
747             asyncResp->res.jsonValue["@odata.id"] =
748                 boost::urls::format("/redfish/v1/Chassis/{}/Drives", chassisId);
749             asyncResp->res.jsonValue["Name"] = "Drive Collection";
750 
751             // Association lambda
752             dbus::utility::getAssociationEndPoints(
753                 path + "/drive",
754                 [asyncResp,
755                  chassisId](const boost::system::error_code& ec3,
756                             const dbus::utility::MapperEndPoints& resp) {
757                 if (ec3)
758                 {
759                     BMCWEB_LOG_ERROR << "Error in chassis Drive association ";
760                 }
761                 nlohmann::json& members = asyncResp->res.jsonValue["Members"];
762                 // important if array is empty
763                 members = nlohmann::json::array();
764 
765                 std::vector<std::string> leafNames;
766                 for (const auto& drive : resp)
767                 {
768                     sdbusplus::message::object_path drivePath(drive);
769                     leafNames.push_back(drivePath.filename());
770                 }
771 
772                 std::sort(leafNames.begin(), leafNames.end(),
773                           AlphanumLess<std::string>());
774 
775                 for (const auto& leafName : leafNames)
776                 {
777                     nlohmann::json::object_t member;
778                     member["@odata.id"] =
779                         boost::urls::format("/redfish/v1/Chassis/{}/Drives/{}",
780                                             chassisId, leafName);
781                     members.emplace_back(std::move(member));
782                     // navigation links will be registered in next patch set
783                 }
784                 asyncResp->res.jsonValue["Members@odata.count"] = resp.size();
785                 }); // end association lambda
786 
787         }           // end Iterate over all retrieved ObjectPaths
788         });
789 }
790 
791 inline void requestRoutesChassisDrive(App& app)
792 {
793     BMCWEB_ROUTE(app, "/redfish/v1/Chassis/<str>/Drives/")
794         .privileges(redfish::privileges::getDriveCollection)
795         .methods(boost::beast::http::verb::get)(
796             std::bind_front(chassisDriveCollectionGet, std::ref(app)));
797 }
798 
799 inline void buildDrive(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
800                        const std::string& chassisId,
801                        const std::string& driveName,
802                        const boost::system::error_code& ec,
803                        const dbus::utility::MapperGetSubTreeResponse& subtree)
804 {
805     if (ec)
806     {
807         BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
808         messages::internalError(asyncResp->res);
809         return;
810     }
811 
812     // Iterate over all retrieved ObjectPaths.
813     for (const auto& [path, connectionNames] : subtree)
814     {
815         sdbusplus::message::object_path objPath(path);
816         if (objPath.filename() != driveName)
817         {
818             continue;
819         }
820 
821         if (connectionNames.empty())
822         {
823             BMCWEB_LOG_ERROR << "Got 0 Connection names";
824             continue;
825         }
826 
827         asyncResp->res.jsonValue["@odata.id"] = boost::urls::format(
828             "/redfish/v1/Chassis/{}/Drives/{}", chassisId, driveName);
829 
830         asyncResp->res.jsonValue["@odata.type"] = "#Drive.v1_7_0.Drive";
831         asyncResp->res.jsonValue["Name"] = driveName;
832         asyncResp->res.jsonValue["Id"] = driveName;
833         // default it to Enabled
834         asyncResp->res.jsonValue["Status"]["State"] = "Enabled";
835 
836         nlohmann::json::object_t linkChassisNav;
837         linkChassisNav["@odata.id"] =
838             boost::urls::format("/redfish/v1/Chassis/{}", chassisId);
839         asyncResp->res.jsonValue["Links"]["Chassis"] = linkChassisNav;
840 
841         addAllDriveInfo(asyncResp, connectionNames[0].first, path,
842                         connectionNames[0].second);
843     }
844 }
845 
846 inline void
847     matchAndFillDrive(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
848                       const std::string& chassisId,
849                       const std::string& driveName,
850                       const std::vector<std::string>& resp)
851 {
852     for (const std::string& drivePath : resp)
853     {
854         sdbusplus::message::object_path path(drivePath);
855         std::string leaf = path.filename();
856         if (leaf != driveName)
857         {
858             continue;
859         }
860         //  mapper call drive
861         constexpr std::array<std::string_view, 1> driveInterface = {
862             "xyz.openbmc_project.Inventory.Item.Drive"};
863         dbus::utility::getSubTree(
864             "/xyz/openbmc_project/inventory", 0, driveInterface,
865             [asyncResp, chassisId, driveName](
866                 const boost::system::error_code& ec,
867                 const dbus::utility::MapperGetSubTreeResponse& subtree) {
868             buildDrive(asyncResp, chassisId, driveName, ec, subtree);
869             });
870     }
871 }
872 
873 inline void
874     handleChassisDriveGet(crow::App& app, const crow::Request& req,
875                           const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
876                           const std::string& chassisId,
877                           const std::string& driveName)
878 {
879     if (!redfish::setUpRedfishRoute(app, req, asyncResp))
880     {
881         return;
882     }
883     constexpr std::array<std::string_view, 2> interfaces = {
884         "xyz.openbmc_project.Inventory.Item.Board",
885         "xyz.openbmc_project.Inventory.Item.Chassis"};
886 
887     // mapper call chassis
888     dbus::utility::getSubTree(
889         "/xyz/openbmc_project/inventory", 0, interfaces,
890         [asyncResp, chassisId,
891          driveName](const boost::system::error_code& ec,
892                     const dbus::utility::MapperGetSubTreeResponse& subtree) {
893         if (ec)
894         {
895             messages::internalError(asyncResp->res);
896             return;
897         }
898 
899         // Iterate over all retrieved ObjectPaths.
900         for (const auto& [path, connectionNames] : subtree)
901         {
902             sdbusplus::message::object_path objPath(path);
903             if (objPath.filename() != chassisId)
904             {
905                 continue;
906             }
907 
908             if (connectionNames.empty())
909             {
910                 BMCWEB_LOG_ERROR << "Got 0 Connection names";
911                 continue;
912             }
913 
914             dbus::utility::getAssociationEndPoints(
915                 path + "/drive",
916                 [asyncResp, chassisId,
917                  driveName](const boost::system::error_code& ec3,
918                             const dbus::utility::MapperEndPoints& resp) {
919                 if (ec3)
920                 {
921                     return; // no drives = no failures
922                 }
923                 matchAndFillDrive(asyncResp, chassisId, driveName, resp);
924                 });
925             break;
926         }
927         });
928 }
929 
930 /**
931  * This URL will show the drive interface for the specific drive in the chassis
932  */
933 inline void requestRoutesChassisDriveName(App& app)
934 {
935     BMCWEB_ROUTE(app, "/redfish/v1/Chassis/<str>/Drives/<str>/")
936         .privileges(redfish::privileges::getChassis)
937         .methods(boost::beast::http::verb::get)(
938             std::bind_front(handleChassisDriveGet, std::ref(app)));
939 }
940 
941 } // namespace redfish
942