LCOV - code coverage report
Current view: top level - module/bdev/lvol - vbdev_lvol_rpc.c (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 0 620 0.0 %
Date: 2024-07-10 22:17:11 Functions: 0 66 0.0 %

          Line data    Source code
       1             : /*   SPDX-License-Identifier: BSD-3-Clause
       2             :  *   Copyright (C) 2017 Intel Corporation.
       3             :  *   All rights reserved.
       4             :  *   Copyright (c) 2022-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
       5             :  */
       6             : 
       7             : #include "spdk/rpc.h"
       8             : #include "spdk/bdev.h"
       9             : #include "spdk/util.h"
      10             : #include "vbdev_lvol.h"
      11             : #include "spdk/string.h"
      12             : #include "spdk/log.h"
      13             : 
      14           0 : SPDK_LOG_REGISTER_COMPONENT(lvol_rpc)
      15             : 
      16             : struct rpc_bdev_lvol_create_lvstore {
      17             :         char *lvs_name;
      18             :         char *bdev_name;
      19             :         uint32_t cluster_sz;
      20             :         char *clear_method;
      21             :         uint32_t num_md_pages_per_cluster_ratio;
      22             : };
      23             : 
      24             : static int
      25           0 : vbdev_get_lvol_store_by_uuid_xor_name(const char *uuid, const char *lvs_name,
      26             :                                       struct spdk_lvol_store **lvs)
      27             : {
      28           0 :         if ((uuid == NULL && lvs_name == NULL)) {
      29           0 :                 SPDK_INFOLOG(lvol_rpc, "lvs UUID nor lvs name specified\n");
      30           0 :                 return -EINVAL;
      31           0 :         } else if ((uuid && lvs_name)) {
      32           0 :                 SPDK_INFOLOG(lvol_rpc, "both lvs UUID '%s' and lvs name '%s' specified\n", uuid,
      33             :                              lvs_name);
      34           0 :                 return -EINVAL;
      35           0 :         } else if (uuid) {
      36           0 :                 *lvs = vbdev_get_lvol_store_by_uuid(uuid);
      37             : 
      38           0 :                 if (*lvs == NULL) {
      39           0 :                         SPDK_INFOLOG(lvol_rpc, "blobstore with UUID '%s' not found\n", uuid);
      40           0 :                         return -ENODEV;
      41             :                 }
      42           0 :         } else if (lvs_name) {
      43             : 
      44           0 :                 *lvs = vbdev_get_lvol_store_by_name(lvs_name);
      45             : 
      46           0 :                 if (*lvs == NULL) {
      47           0 :                         SPDK_INFOLOG(lvol_rpc, "blobstore with name '%s' not found\n", lvs_name);
      48           0 :                         return -ENODEV;
      49             :                 }
      50             :         }
      51           0 :         return 0;
      52             : }
      53             : 
      54             : static void
      55           0 : free_rpc_bdev_lvol_create_lvstore(struct rpc_bdev_lvol_create_lvstore *req)
      56             : {
      57           0 :         free(req->bdev_name);
      58           0 :         free(req->lvs_name);
      59           0 :         free(req->clear_method);
      60           0 : }
      61             : 
      62             : static const struct spdk_json_object_decoder rpc_bdev_lvol_create_lvstore_decoders[] = {
      63             :         {"bdev_name", offsetof(struct rpc_bdev_lvol_create_lvstore, bdev_name), spdk_json_decode_string},
      64             :         {"cluster_sz", offsetof(struct rpc_bdev_lvol_create_lvstore, cluster_sz), spdk_json_decode_uint32, true},
      65             :         {"lvs_name", offsetof(struct rpc_bdev_lvol_create_lvstore, lvs_name), spdk_json_decode_string},
      66             :         {"clear_method", offsetof(struct rpc_bdev_lvol_create_lvstore, clear_method), spdk_json_decode_string, true},
      67             :         {"num_md_pages_per_cluster_ratio", offsetof(struct rpc_bdev_lvol_create_lvstore, num_md_pages_per_cluster_ratio), spdk_json_decode_uint32, true},
      68             : };
      69             : 
      70             : static void
      71           0 : rpc_lvol_store_construct_cb(void *cb_arg, struct spdk_lvol_store *lvol_store, int lvserrno)
      72             : {
      73             :         struct spdk_json_write_ctx *w;
      74           0 :         struct spdk_jsonrpc_request *request = cb_arg;
      75             : 
      76           0 :         if (lvserrno != 0) {
      77           0 :                 goto invalid;
      78             :         }
      79             : 
      80           0 :         w = spdk_jsonrpc_begin_result(request);
      81           0 :         spdk_json_write_uuid(w, &lvol_store->uuid);
      82           0 :         spdk_jsonrpc_end_result(request, w);
      83           0 :         return;
      84             : 
      85           0 : invalid:
      86           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
      87             :                                          spdk_strerror(-lvserrno));
      88             : }
      89             : 
      90             : static void
      91           0 : rpc_bdev_lvol_create_lvstore(struct spdk_jsonrpc_request *request,
      92             :                              const struct spdk_json_val *params)
      93             : {
      94           0 :         struct rpc_bdev_lvol_create_lvstore req = {};
      95           0 :         int rc = 0;
      96             :         enum lvs_clear_method clear_method;
      97             : 
      98           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_create_lvstore_decoders,
      99             :                                     SPDK_COUNTOF(rpc_bdev_lvol_create_lvstore_decoders),
     100             :                                     &req)) {
     101           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     102           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     103             :                                                  "spdk_json_decode_object failed");
     104           0 :                 goto cleanup;
     105             :         }
     106             : 
     107           0 :         if (req.clear_method != NULL) {
     108           0 :                 if (!strcasecmp(req.clear_method, "none")) {
     109           0 :                         clear_method = LVS_CLEAR_WITH_NONE;
     110           0 :                 } else if (!strcasecmp(req.clear_method, "unmap")) {
     111           0 :                         clear_method = LVS_CLEAR_WITH_UNMAP;
     112           0 :                 } else if (!strcasecmp(req.clear_method, "write_zeroes")) {
     113           0 :                         clear_method = LVS_CLEAR_WITH_WRITE_ZEROES;
     114             :                 } else {
     115           0 :                         spdk_jsonrpc_send_error_response(request, -EINVAL, "Invalid clear_method parameter");
     116           0 :                         goto cleanup;
     117             :                 }
     118             :         } else {
     119           0 :                 clear_method = LVS_CLEAR_WITH_UNMAP;
     120             :         }
     121             : 
     122           0 :         rc = vbdev_lvs_create(req.bdev_name, req.lvs_name, req.cluster_sz, clear_method,
     123             :                               req.num_md_pages_per_cluster_ratio, rpc_lvol_store_construct_cb, request);
     124           0 :         if (rc < 0) {
     125           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
     126           0 :                 goto cleanup;
     127             :         }
     128           0 :         free_rpc_bdev_lvol_create_lvstore(&req);
     129             : 
     130           0 :         return;
     131             : 
     132           0 : cleanup:
     133           0 :         free_rpc_bdev_lvol_create_lvstore(&req);
     134             : }
     135           0 : SPDK_RPC_REGISTER("bdev_lvol_create_lvstore", rpc_bdev_lvol_create_lvstore, SPDK_RPC_RUNTIME)
     136             : 
     137             : struct rpc_bdev_lvol_rename_lvstore {
     138             :         char *old_name;
     139             :         char *new_name;
     140             : };
     141             : 
     142             : static void
     143           0 : free_rpc_bdev_lvol_rename_lvstore(struct rpc_bdev_lvol_rename_lvstore *req)
     144             : {
     145           0 :         free(req->old_name);
     146           0 :         free(req->new_name);
     147           0 : }
     148             : 
     149             : static const struct spdk_json_object_decoder rpc_bdev_lvol_rename_lvstore_decoders[] = {
     150             :         {"old_name", offsetof(struct rpc_bdev_lvol_rename_lvstore, old_name), spdk_json_decode_string},
     151             :         {"new_name", offsetof(struct rpc_bdev_lvol_rename_lvstore, new_name), spdk_json_decode_string},
     152             : };
     153             : 
     154             : static void
     155           0 : rpc_bdev_lvol_rename_lvstore_cb(void *cb_arg, int lvserrno)
     156             : {
     157           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     158             : 
     159           0 :         if (lvserrno != 0) {
     160           0 :                 goto invalid;
     161             :         }
     162             : 
     163           0 :         spdk_jsonrpc_send_bool_response(request, true);
     164           0 :         return;
     165             : 
     166           0 : invalid:
     167           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     168             :                                          spdk_strerror(-lvserrno));
     169             : }
     170             : 
     171             : static void
     172           0 : rpc_bdev_lvol_rename_lvstore(struct spdk_jsonrpc_request *request,
     173             :                              const struct spdk_json_val *params)
     174             : {
     175           0 :         struct rpc_bdev_lvol_rename_lvstore req = {};
     176             :         struct spdk_lvol_store *lvs;
     177             : 
     178           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_rename_lvstore_decoders,
     179             :                                     SPDK_COUNTOF(rpc_bdev_lvol_rename_lvstore_decoders),
     180             :                                     &req)) {
     181           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     182           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     183             :                                                  "spdk_json_decode_object failed");
     184           0 :                 goto cleanup;
     185             :         }
     186             : 
     187           0 :         lvs = vbdev_get_lvol_store_by_name(req.old_name);
     188           0 :         if (lvs == NULL) {
     189           0 :                 SPDK_INFOLOG(lvol_rpc, "no lvs existing for given name\n");
     190           0 :                 spdk_jsonrpc_send_error_response_fmt(request, -ENOENT, "Lvol store %s not found", req.old_name);
     191           0 :                 goto cleanup;
     192             :         }
     193             : 
     194           0 :         vbdev_lvs_rename(lvs, req.new_name, rpc_bdev_lvol_rename_lvstore_cb, request);
     195             : 
     196           0 : cleanup:
     197           0 :         free_rpc_bdev_lvol_rename_lvstore(&req);
     198           0 : }
     199           0 : SPDK_RPC_REGISTER("bdev_lvol_rename_lvstore", rpc_bdev_lvol_rename_lvstore, SPDK_RPC_RUNTIME)
     200             : 
     201             : struct rpc_bdev_lvol_delete_lvstore {
     202             :         char *uuid;
     203             :         char *lvs_name;
     204             : };
     205             : 
     206             : static void
     207           0 : free_rpc_bdev_lvol_delete_lvstore(struct rpc_bdev_lvol_delete_lvstore *req)
     208             : {
     209           0 :         free(req->uuid);
     210           0 :         free(req->lvs_name);
     211           0 : }
     212             : 
     213             : static const struct spdk_json_object_decoder rpc_bdev_lvol_delete_lvstore_decoders[] = {
     214             :         {"uuid", offsetof(struct rpc_bdev_lvol_delete_lvstore, uuid), spdk_json_decode_string, true},
     215             :         {"lvs_name", offsetof(struct rpc_bdev_lvol_delete_lvstore, lvs_name), spdk_json_decode_string, true},
     216             : };
     217             : 
     218             : static void
     219           0 : rpc_lvol_store_destroy_cb(void *cb_arg, int lvserrno)
     220             : {
     221           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     222             : 
     223           0 :         if (lvserrno != 0) {
     224           0 :                 goto invalid;
     225             :         }
     226             : 
     227           0 :         spdk_jsonrpc_send_bool_response(request, true);
     228           0 :         return;
     229             : 
     230           0 : invalid:
     231           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     232             :                                          spdk_strerror(-lvserrno));
     233             : }
     234             : 
     235             : static void
     236           0 : rpc_bdev_lvol_delete_lvstore(struct spdk_jsonrpc_request *request,
     237             :                              const struct spdk_json_val *params)
     238             : {
     239           0 :         struct rpc_bdev_lvol_delete_lvstore req = {};
     240           0 :         struct spdk_lvol_store *lvs = NULL;
     241             :         int rc;
     242             : 
     243           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_delete_lvstore_decoders,
     244             :                                     SPDK_COUNTOF(rpc_bdev_lvol_delete_lvstore_decoders),
     245             :                                     &req)) {
     246           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     247           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     248             :                                                  "spdk_json_decode_object failed");
     249           0 :                 goto cleanup;
     250             :         }
     251             : 
     252           0 :         rc = vbdev_get_lvol_store_by_uuid_xor_name(req.uuid, req.lvs_name, &lvs);
     253           0 :         if (rc != 0) {
     254           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
     255           0 :                 goto cleanup;
     256             :         }
     257             : 
     258           0 :         vbdev_lvs_destruct(lvs, rpc_lvol_store_destroy_cb, request);
     259             : 
     260           0 : cleanup:
     261           0 :         free_rpc_bdev_lvol_delete_lvstore(&req);
     262           0 : }
     263           0 : SPDK_RPC_REGISTER("bdev_lvol_delete_lvstore", rpc_bdev_lvol_delete_lvstore, SPDK_RPC_RUNTIME)
     264             : 
     265             : struct rpc_bdev_lvol_create {
     266             :         char *uuid;
     267             :         char *lvs_name;
     268             :         char *lvol_name;
     269             :         uint64_t size;
     270             :         uint64_t size_in_mib;
     271             :         bool thin_provision;
     272             :         char *clear_method;
     273             : };
     274             : 
     275             : static void
     276           0 : free_rpc_bdev_lvol_create(struct rpc_bdev_lvol_create *req)
     277             : {
     278           0 :         free(req->uuid);
     279           0 :         free(req->lvs_name);
     280           0 :         free(req->lvol_name);
     281           0 :         free(req->clear_method);
     282           0 : }
     283             : 
     284             : static const struct spdk_json_object_decoder rpc_bdev_lvol_create_decoders[] = {
     285             :         {"uuid", offsetof(struct rpc_bdev_lvol_create, uuid), spdk_json_decode_string, true},
     286             :         {"lvs_name", offsetof(struct rpc_bdev_lvol_create, lvs_name), spdk_json_decode_string, true},
     287             :         {"lvol_name", offsetof(struct rpc_bdev_lvol_create, lvol_name), spdk_json_decode_string},
     288             :         {"size", offsetof(struct rpc_bdev_lvol_create, size), spdk_json_decode_uint64, true},
     289             :         {"size_in_mib", offsetof(struct rpc_bdev_lvol_create, size_in_mib), spdk_json_decode_uint64, true},
     290             :         {"thin_provision", offsetof(struct rpc_bdev_lvol_create, thin_provision), spdk_json_decode_bool, true},
     291             :         {"clear_method", offsetof(struct rpc_bdev_lvol_create, clear_method), spdk_json_decode_string, true},
     292             : };
     293             : 
     294             : static void
     295           0 : rpc_bdev_lvol_create_cb(void *cb_arg, struct spdk_lvol *lvol, int lvolerrno)
     296             : {
     297             :         struct spdk_json_write_ctx *w;
     298           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     299             : 
     300           0 :         if (lvolerrno != 0) {
     301           0 :                 goto invalid;
     302             :         }
     303             : 
     304           0 :         w = spdk_jsonrpc_begin_result(request);
     305           0 :         spdk_json_write_string(w, lvol->unique_id);
     306           0 :         spdk_jsonrpc_end_result(request, w);
     307           0 :         return;
     308             : 
     309           0 : invalid:
     310           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     311             :                                          spdk_strerror(-lvolerrno));
     312             : }
     313             : 
     314           0 : SPDK_LOG_DEPRECATION_REGISTER(vbdev_lvol_rpc_req_size,
     315             :                               "rpc_bdev_lvol_create/resize req.size",
     316             :                               "v23.09", 0);
     317             : 
     318             : static void
     319           0 : rpc_bdev_lvol_create(struct spdk_jsonrpc_request *request,
     320             :                      const struct spdk_json_val *params)
     321             : {
     322           0 :         struct rpc_bdev_lvol_create req = {};
     323             :         enum lvol_clear_method clear_method;
     324           0 :         int rc = 0;
     325           0 :         struct spdk_lvol_store *lvs = NULL;
     326           0 :         uint64_t size = 0;
     327             : 
     328           0 :         SPDK_INFOLOG(lvol_rpc, "Creating blob\n");
     329             : 
     330           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_create_decoders,
     331             :                                     SPDK_COUNTOF(rpc_bdev_lvol_create_decoders),
     332             :                                     &req)) {
     333           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     334           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     335             :                                                  "spdk_json_decode_object failed");
     336           0 :                 goto cleanup;
     337             :         }
     338             : 
     339           0 :         if (req.size > 0 && req.size_in_mib > 0) {
     340           0 :                 SPDK_LOG_DEPRECATED(vbdev_lvol_rpc_req_size);
     341           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     342             :                                                  "size is deprecated. Specify only size_in_mib instead.");
     343           0 :                 goto cleanup;
     344           0 :         } else if (req.size_in_mib > 0) {
     345           0 :                 size = req.size_in_mib * 1024 * 1024;
     346             :         } else {
     347           0 :                 SPDK_LOG_DEPRECATED(vbdev_lvol_rpc_req_size);
     348           0 :                 size = req.size;
     349             :         }
     350             : 
     351           0 :         rc = vbdev_get_lvol_store_by_uuid_xor_name(req.uuid, req.lvs_name, &lvs);
     352           0 :         if (rc != 0) {
     353           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
     354           0 :                 goto cleanup;
     355             :         }
     356             : 
     357           0 :         if (req.clear_method != NULL) {
     358           0 :                 if (!strcasecmp(req.clear_method, "none")) {
     359           0 :                         clear_method = LVOL_CLEAR_WITH_NONE;
     360           0 :                 } else if (!strcasecmp(req.clear_method, "unmap")) {
     361           0 :                         clear_method = LVOL_CLEAR_WITH_UNMAP;
     362           0 :                 } else if (!strcasecmp(req.clear_method, "write_zeroes")) {
     363           0 :                         clear_method = LVOL_CLEAR_WITH_WRITE_ZEROES;
     364             :                 } else {
     365           0 :                         spdk_jsonrpc_send_error_response(request, -EINVAL, "Invalid clean_method option");
     366           0 :                         goto cleanup;
     367             :                 }
     368             :         } else {
     369           0 :                 clear_method = LVOL_CLEAR_WITH_DEFAULT;
     370             :         }
     371             : 
     372           0 :         rc = vbdev_lvol_create(lvs, req.lvol_name, size, req.thin_provision,
     373             :                                clear_method, rpc_bdev_lvol_create_cb, request);
     374           0 :         if (rc < 0) {
     375           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
     376           0 :                 goto cleanup;
     377             :         }
     378             : 
     379           0 : cleanup:
     380           0 :         free_rpc_bdev_lvol_create(&req);
     381           0 : }
     382             : 
     383           0 : SPDK_RPC_REGISTER("bdev_lvol_create", rpc_bdev_lvol_create, SPDK_RPC_RUNTIME)
     384             : 
     385             : struct rpc_bdev_lvol_snapshot {
     386             :         char *lvol_name;
     387             :         char *snapshot_name;
     388             : };
     389             : 
     390             : static void
     391           0 : free_rpc_bdev_lvol_snapshot(struct rpc_bdev_lvol_snapshot *req)
     392             : {
     393           0 :         free(req->lvol_name);
     394           0 :         free(req->snapshot_name);
     395           0 : }
     396             : 
     397             : static const struct spdk_json_object_decoder rpc_bdev_lvol_snapshot_decoders[] = {
     398             :         {"lvol_name", offsetof(struct rpc_bdev_lvol_snapshot, lvol_name), spdk_json_decode_string},
     399             :         {"snapshot_name", offsetof(struct rpc_bdev_lvol_snapshot, snapshot_name), spdk_json_decode_string},
     400             : };
     401             : 
     402             : static void
     403           0 : rpc_bdev_lvol_snapshot_cb(void *cb_arg, struct spdk_lvol *lvol, int lvolerrno)
     404             : {
     405             :         struct spdk_json_write_ctx *w;
     406           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     407             : 
     408           0 :         if (lvolerrno != 0) {
     409           0 :                 goto invalid;
     410             :         }
     411             : 
     412           0 :         w = spdk_jsonrpc_begin_result(request);
     413           0 :         spdk_json_write_string(w, lvol->unique_id);
     414           0 :         spdk_jsonrpc_end_result(request, w);
     415           0 :         return;
     416             : 
     417           0 : invalid:
     418           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     419             :                                          spdk_strerror(-lvolerrno));
     420             : }
     421             : 
     422             : static void
     423           0 : rpc_bdev_lvol_snapshot(struct spdk_jsonrpc_request *request,
     424             :                        const struct spdk_json_val *params)
     425             : {
     426           0 :         struct rpc_bdev_lvol_snapshot req = {};
     427             :         struct spdk_bdev *bdev;
     428             :         struct spdk_lvol *lvol;
     429             : 
     430           0 :         SPDK_INFOLOG(lvol_rpc, "Snapshotting blob\n");
     431             : 
     432           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_snapshot_decoders,
     433             :                                     SPDK_COUNTOF(rpc_bdev_lvol_snapshot_decoders),
     434             :                                     &req)) {
     435           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     436           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     437             :                                                  "spdk_json_decode_object failed");
     438           0 :                 goto cleanup;
     439             :         }
     440             : 
     441           0 :         bdev = spdk_bdev_get_by_name(req.lvol_name);
     442           0 :         if (bdev == NULL) {
     443           0 :                 SPDK_INFOLOG(lvol_rpc, "bdev '%s' does not exist\n", req.lvol_name);
     444           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     445           0 :                 goto cleanup;
     446             :         }
     447             : 
     448           0 :         lvol = vbdev_lvol_get_from_bdev(bdev);
     449           0 :         if (lvol == NULL) {
     450           0 :                 SPDK_ERRLOG("lvol does not exist\n");
     451           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     452           0 :                 goto cleanup;
     453             :         }
     454             : 
     455           0 :         vbdev_lvol_create_snapshot(lvol, req.snapshot_name, rpc_bdev_lvol_snapshot_cb, request);
     456             : 
     457           0 : cleanup:
     458           0 :         free_rpc_bdev_lvol_snapshot(&req);
     459           0 : }
     460             : 
     461           0 : SPDK_RPC_REGISTER("bdev_lvol_snapshot", rpc_bdev_lvol_snapshot, SPDK_RPC_RUNTIME)
     462             : 
     463             : struct rpc_bdev_lvol_clone {
     464             :         char *snapshot_name;
     465             :         char *clone_name;
     466             : };
     467             : 
     468             : static void
     469           0 : free_rpc_bdev_lvol_clone(struct rpc_bdev_lvol_clone *req)
     470             : {
     471           0 :         free(req->snapshot_name);
     472           0 :         free(req->clone_name);
     473           0 : }
     474             : 
     475             : static const struct spdk_json_object_decoder rpc_bdev_lvol_clone_decoders[] = {
     476             :         {"snapshot_name", offsetof(struct rpc_bdev_lvol_clone, snapshot_name), spdk_json_decode_string},
     477             :         {"clone_name", offsetof(struct rpc_bdev_lvol_clone, clone_name), spdk_json_decode_string, true},
     478             : };
     479             : 
     480             : static void
     481           0 : rpc_bdev_lvol_clone_cb(void *cb_arg, struct spdk_lvol *lvol, int lvolerrno)
     482             : {
     483             :         struct spdk_json_write_ctx *w;
     484           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     485             : 
     486           0 :         if (lvolerrno != 0) {
     487           0 :                 goto invalid;
     488             :         }
     489             : 
     490           0 :         w = spdk_jsonrpc_begin_result(request);
     491           0 :         spdk_json_write_string(w, lvol->unique_id);
     492           0 :         spdk_jsonrpc_end_result(request, w);
     493           0 :         return;
     494             : 
     495           0 : invalid:
     496           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     497             :                                          spdk_strerror(-lvolerrno));
     498             : }
     499             : 
     500             : static void
     501           0 : rpc_bdev_lvol_clone(struct spdk_jsonrpc_request *request,
     502             :                     const struct spdk_json_val *params)
     503             : {
     504           0 :         struct rpc_bdev_lvol_clone req = {};
     505             :         struct spdk_bdev *bdev;
     506             :         struct spdk_lvol *lvol;
     507             : 
     508           0 :         SPDK_INFOLOG(lvol_rpc, "Cloning blob\n");
     509             : 
     510           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_clone_decoders,
     511             :                                     SPDK_COUNTOF(rpc_bdev_lvol_clone_decoders),
     512             :                                     &req)) {
     513           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     514           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     515             :                                                  "spdk_json_decode_object failed");
     516           0 :                 goto cleanup;
     517             :         }
     518             : 
     519           0 :         bdev = spdk_bdev_get_by_name(req.snapshot_name);
     520           0 :         if (bdev == NULL) {
     521           0 :                 SPDK_INFOLOG(lvol_rpc, "bdev '%s' does not exist\n", req.snapshot_name);
     522           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     523           0 :                 goto cleanup;
     524             :         }
     525             : 
     526           0 :         lvol = vbdev_lvol_get_from_bdev(bdev);
     527           0 :         if (lvol == NULL) {
     528           0 :                 SPDK_ERRLOG("lvol does not exist\n");
     529           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     530           0 :                 goto cleanup;
     531             :         }
     532             : 
     533           0 :         vbdev_lvol_create_clone(lvol, req.clone_name, rpc_bdev_lvol_clone_cb, request);
     534             : 
     535           0 : cleanup:
     536           0 :         free_rpc_bdev_lvol_clone(&req);
     537           0 : }
     538             : 
     539           0 : SPDK_RPC_REGISTER("bdev_lvol_clone", rpc_bdev_lvol_clone, SPDK_RPC_RUNTIME)
     540             : 
     541             : struct rpc_bdev_lvol_clone_bdev {
     542             :         /* name or UUID. Whichever is used, the UUID will be stored in the lvol's metadata. */
     543             :         char *bdev_name;
     544             :         char *lvs_name;
     545             :         char *clone_name;
     546             : };
     547             : 
     548             : static void
     549           0 : free_rpc_bdev_lvol_clone_bdev(struct rpc_bdev_lvol_clone_bdev *req)
     550             : {
     551           0 :         free(req->bdev_name);
     552           0 :         free(req->lvs_name);
     553           0 :         free(req->clone_name);
     554           0 : }
     555             : 
     556             : static const struct spdk_json_object_decoder rpc_bdev_lvol_clone_bdev_decoders[] = {
     557             :         {
     558             :                 "bdev", offsetof(struct rpc_bdev_lvol_clone_bdev, bdev_name),
     559             :                 spdk_json_decode_string, false
     560             :         },
     561             :         {
     562             :                 "lvs_name", offsetof(struct rpc_bdev_lvol_clone_bdev, lvs_name),
     563             :                 spdk_json_decode_string, false
     564             :         },
     565             :         {
     566             :                 "clone_name", offsetof(struct rpc_bdev_lvol_clone_bdev, clone_name),
     567             :                 spdk_json_decode_string, false
     568             :         },
     569             : };
     570             : 
     571             : static void
     572           0 : rpc_bdev_lvol_clone_bdev(struct spdk_jsonrpc_request *request, const struct spdk_json_val *params)
     573             : {
     574           0 :         struct rpc_bdev_lvol_clone_bdev req = {};
     575             :         struct spdk_bdev *bdev;
     576           0 :         struct spdk_lvol_store *lvs = NULL;
     577             :         struct spdk_lvol *lvol;
     578             :         int rc;
     579             : 
     580           0 :         SPDK_INFOLOG(lvol_rpc, "Cloning bdev\n");
     581             : 
     582           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_clone_bdev_decoders,
     583             :                                     SPDK_COUNTOF(rpc_bdev_lvol_clone_bdev_decoders), &req)) {
     584           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     585           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     586             :                                                  "spdk_json_decode_object failed");
     587           0 :                 goto cleanup;
     588             :         }
     589             : 
     590           0 :         rc = vbdev_get_lvol_store_by_uuid_xor_name(NULL, req.lvs_name, &lvs);
     591           0 :         if (rc != 0) {
     592           0 :                 SPDK_INFOLOG(lvol_rpc, "lvs_name '%s' not found\n", req.lvs_name);
     593           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     594             :                                                  "lvs does not exist");
     595           0 :                 goto cleanup;
     596             :         }
     597             : 
     598           0 :         bdev = spdk_bdev_get_by_name(req.bdev_name);
     599           0 :         if (bdev == NULL) {
     600           0 :                 SPDK_INFOLOG(lvol_rpc, "bdev '%s' does not exist\n", req.bdev_name);
     601           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     602             :                                                  "bdev does not exist");
     603           0 :                 goto cleanup;
     604             :         }
     605             : 
     606           0 :         lvol = vbdev_lvol_get_from_bdev(bdev);
     607           0 :         if (lvol != NULL && lvol->lvol_store == lvs) {
     608           0 :                 SPDK_INFOLOG(lvol_rpc, "bdev '%s' is an lvol in lvstore '%s\n", req.bdev_name,
     609             :                              req.lvs_name);
     610           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     611             :                                                  "bdev is an lvol in same lvs as clone; "
     612             :                                                  "use bdev_lvol_clone instead");
     613           0 :                 goto cleanup;
     614             :         }
     615             : 
     616           0 :         vbdev_lvol_create_bdev_clone(req.bdev_name, lvs, req.clone_name,
     617             :                                      rpc_bdev_lvol_clone_cb, request);
     618           0 : cleanup:
     619           0 :         free_rpc_bdev_lvol_clone_bdev(&req);
     620           0 : }
     621             : 
     622           0 : SPDK_RPC_REGISTER("bdev_lvol_clone_bdev", rpc_bdev_lvol_clone_bdev, SPDK_RPC_RUNTIME)
     623             : 
     624             : struct rpc_bdev_lvol_rename {
     625             :         char *old_name;
     626             :         char *new_name;
     627             : };
     628             : 
     629             : static void
     630           0 : free_rpc_bdev_lvol_rename(struct rpc_bdev_lvol_rename *req)
     631             : {
     632           0 :         free(req->old_name);
     633           0 :         free(req->new_name);
     634           0 : }
     635             : 
     636             : static const struct spdk_json_object_decoder rpc_bdev_lvol_rename_decoders[] = {
     637             :         {"old_name", offsetof(struct rpc_bdev_lvol_rename, old_name), spdk_json_decode_string},
     638             :         {"new_name", offsetof(struct rpc_bdev_lvol_rename, new_name), spdk_json_decode_string},
     639             : };
     640             : 
     641             : static void
     642           0 : rpc_bdev_lvol_rename_cb(void *cb_arg, int lvolerrno)
     643             : {
     644           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     645             : 
     646           0 :         if (lvolerrno != 0) {
     647           0 :                 goto invalid;
     648             :         }
     649             : 
     650           0 :         spdk_jsonrpc_send_bool_response(request, true);
     651           0 :         return;
     652             : 
     653           0 : invalid:
     654           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     655             :                                          spdk_strerror(-lvolerrno));
     656             : }
     657             : 
     658             : static void
     659           0 : rpc_bdev_lvol_rename(struct spdk_jsonrpc_request *request,
     660             :                      const struct spdk_json_val *params)
     661             : {
     662           0 :         struct rpc_bdev_lvol_rename req = {};
     663             :         struct spdk_bdev *bdev;
     664             :         struct spdk_lvol *lvol;
     665             : 
     666           0 :         SPDK_INFOLOG(lvol_rpc, "Renaming lvol\n");
     667             : 
     668           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_rename_decoders,
     669             :                                     SPDK_COUNTOF(rpc_bdev_lvol_rename_decoders),
     670             :                                     &req)) {
     671           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     672           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     673             :                                                  "spdk_json_decode_object failed");
     674           0 :                 goto cleanup;
     675             :         }
     676             : 
     677           0 :         bdev = spdk_bdev_get_by_name(req.old_name);
     678           0 :         if (bdev == NULL) {
     679           0 :                 SPDK_ERRLOG("bdev '%s' does not exist\n", req.old_name);
     680           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     681           0 :                 goto cleanup;
     682             :         }
     683             : 
     684           0 :         lvol = vbdev_lvol_get_from_bdev(bdev);
     685           0 :         if (lvol == NULL) {
     686           0 :                 SPDK_ERRLOG("lvol does not exist\n");
     687           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     688           0 :                 goto cleanup;
     689             :         }
     690             : 
     691           0 :         vbdev_lvol_rename(lvol, req.new_name, rpc_bdev_lvol_rename_cb, request);
     692             : 
     693           0 : cleanup:
     694           0 :         free_rpc_bdev_lvol_rename(&req);
     695           0 : }
     696             : 
     697           0 : SPDK_RPC_REGISTER("bdev_lvol_rename", rpc_bdev_lvol_rename, SPDK_RPC_RUNTIME)
     698             : 
     699             : struct rpc_bdev_lvol_inflate {
     700             :         char *name;
     701             : };
     702             : 
     703             : static void
     704           0 : free_rpc_bdev_lvol_inflate(struct rpc_bdev_lvol_inflate *req)
     705             : {
     706           0 :         free(req->name);
     707           0 : }
     708             : 
     709             : static const struct spdk_json_object_decoder rpc_bdev_lvol_inflate_decoders[] = {
     710             :         {"name", offsetof(struct rpc_bdev_lvol_inflate, name), spdk_json_decode_string},
     711             : };
     712             : 
     713             : static void
     714           0 : rpc_bdev_lvol_inflate_cb(void *cb_arg, int lvolerrno)
     715             : {
     716           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     717             : 
     718           0 :         if (lvolerrno != 0) {
     719           0 :                 goto invalid;
     720             :         }
     721             : 
     722           0 :         spdk_jsonrpc_send_bool_response(request, true);
     723           0 :         return;
     724             : 
     725           0 : invalid:
     726           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     727             :                                          spdk_strerror(-lvolerrno));
     728             : }
     729             : 
     730             : static void
     731           0 : rpc_bdev_lvol_inflate(struct spdk_jsonrpc_request *request,
     732             :                       const struct spdk_json_val *params)
     733             : {
     734           0 :         struct rpc_bdev_lvol_inflate req = {};
     735             :         struct spdk_bdev *bdev;
     736             :         struct spdk_lvol *lvol;
     737             : 
     738           0 :         SPDK_INFOLOG(lvol_rpc, "Inflating lvol\n");
     739             : 
     740           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_inflate_decoders,
     741             :                                     SPDK_COUNTOF(rpc_bdev_lvol_inflate_decoders),
     742             :                                     &req)) {
     743           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     744           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     745             :                                                  "spdk_json_decode_object failed");
     746           0 :                 goto cleanup;
     747             :         }
     748             : 
     749           0 :         bdev = spdk_bdev_get_by_name(req.name);
     750           0 :         if (bdev == NULL) {
     751           0 :                 SPDK_ERRLOG("bdev '%s' does not exist\n", req.name);
     752           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     753           0 :                 goto cleanup;
     754             :         }
     755             : 
     756           0 :         lvol = vbdev_lvol_get_from_bdev(bdev);
     757           0 :         if (lvol == NULL) {
     758           0 :                 SPDK_ERRLOG("lvol does not exist\n");
     759           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     760           0 :                 goto cleanup;
     761             :         }
     762             : 
     763           0 :         spdk_lvol_inflate(lvol, rpc_bdev_lvol_inflate_cb, request);
     764             : 
     765           0 : cleanup:
     766           0 :         free_rpc_bdev_lvol_inflate(&req);
     767           0 : }
     768             : 
     769           0 : SPDK_RPC_REGISTER("bdev_lvol_inflate", rpc_bdev_lvol_inflate, SPDK_RPC_RUNTIME)
     770             : 
     771             : static void
     772           0 : rpc_bdev_lvol_decouple_parent(struct spdk_jsonrpc_request *request,
     773             :                               const struct spdk_json_val *params)
     774             : {
     775           0 :         struct rpc_bdev_lvol_inflate req = {};
     776             :         struct spdk_bdev *bdev;
     777             :         struct spdk_lvol *lvol;
     778             : 
     779           0 :         SPDK_INFOLOG(lvol_rpc, "Decoupling parent of lvol\n");
     780             : 
     781           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_inflate_decoders,
     782             :                                     SPDK_COUNTOF(rpc_bdev_lvol_inflate_decoders),
     783             :                                     &req)) {
     784           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     785           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     786             :                                                  "spdk_json_decode_object failed");
     787           0 :                 goto cleanup;
     788             :         }
     789             : 
     790           0 :         bdev = spdk_bdev_get_by_name(req.name);
     791           0 :         if (bdev == NULL) {
     792           0 :                 SPDK_ERRLOG("bdev '%s' does not exist\n", req.name);
     793           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     794           0 :                 goto cleanup;
     795             :         }
     796             : 
     797           0 :         lvol = vbdev_lvol_get_from_bdev(bdev);
     798           0 :         if (lvol == NULL) {
     799           0 :                 SPDK_ERRLOG("lvol does not exist\n");
     800           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     801           0 :                 goto cleanup;
     802             :         }
     803             : 
     804           0 :         spdk_lvol_decouple_parent(lvol, rpc_bdev_lvol_inflate_cb, request);
     805             : 
     806           0 : cleanup:
     807           0 :         free_rpc_bdev_lvol_inflate(&req);
     808           0 : }
     809             : 
     810           0 : SPDK_RPC_REGISTER("bdev_lvol_decouple_parent", rpc_bdev_lvol_decouple_parent, SPDK_RPC_RUNTIME)
     811             : 
     812             : struct rpc_bdev_lvol_resize {
     813             :         char *name;
     814             :         uint64_t size;
     815             :         uint64_t size_in_mib;
     816             : };
     817             : 
     818             : static void
     819           0 : free_rpc_bdev_lvol_resize(struct rpc_bdev_lvol_resize *req)
     820             : {
     821           0 :         free(req->name);
     822           0 : }
     823             : 
     824             : static const struct spdk_json_object_decoder rpc_bdev_lvol_resize_decoders[] = {
     825             :         {"name", offsetof(struct rpc_bdev_lvol_resize, name), spdk_json_decode_string},
     826             :         {"size", offsetof(struct rpc_bdev_lvol_resize, size), spdk_json_decode_uint64, true},
     827             :         {"size_in_mib", offsetof(struct rpc_bdev_lvol_resize, size_in_mib), spdk_json_decode_uint64, true},
     828             : };
     829             : 
     830             : static void
     831           0 : rpc_bdev_lvol_resize_cb(void *cb_arg, int lvolerrno)
     832             : {
     833           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     834             : 
     835           0 :         if (lvolerrno != 0) {
     836           0 :                 goto invalid;
     837             :         }
     838             : 
     839           0 :         spdk_jsonrpc_send_bool_response(request, true);
     840           0 :         return;
     841             : 
     842           0 : invalid:
     843           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     844             :                                          spdk_strerror(-lvolerrno));
     845             : }
     846             : 
     847             : static void
     848           0 : rpc_bdev_lvol_resize(struct spdk_jsonrpc_request *request,
     849             :                      const struct spdk_json_val *params)
     850             : {
     851           0 :         struct rpc_bdev_lvol_resize req = {};
     852             :         struct spdk_bdev *bdev;
     853             :         struct spdk_lvol *lvol;
     854           0 :         uint64_t size = 0;
     855             : 
     856           0 :         SPDK_INFOLOG(lvol_rpc, "Resizing lvol\n");
     857             : 
     858           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_resize_decoders,
     859             :                                     SPDK_COUNTOF(rpc_bdev_lvol_resize_decoders),
     860             :                                     &req)) {
     861           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     862           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     863             :                                                  "spdk_json_decode_object failed");
     864           0 :                 goto cleanup;
     865             :         }
     866             : 
     867           0 :         if (req.size > 0 && req.size_in_mib > 0) {
     868           0 :                 SPDK_LOG_DEPRECATED(vbdev_lvol_rpc_req_size);
     869           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     870             :                                                  "size is deprecated. Specify only size_in_mib instead.");
     871           0 :                 goto cleanup;
     872           0 :         } else if (req.size_in_mib > 0) {
     873           0 :                 size = req.size_in_mib * 1024 * 1024;
     874             :         } else {
     875           0 :                 SPDK_LOG_DEPRECATED(vbdev_lvol_rpc_req_size);
     876           0 :                 size = req.size;
     877             :         }
     878             : 
     879           0 :         bdev = spdk_bdev_get_by_name(req.name);
     880           0 :         if (bdev == NULL) {
     881           0 :                 SPDK_ERRLOG("no bdev for provided name %s\n", req.name);
     882           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     883           0 :                 goto cleanup;
     884             :         }
     885             : 
     886           0 :         lvol = vbdev_lvol_get_from_bdev(bdev);
     887           0 :         if (lvol == NULL) {
     888           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     889           0 :                 goto cleanup;
     890             :         }
     891             : 
     892             : 
     893           0 :         vbdev_lvol_resize(lvol, size, rpc_bdev_lvol_resize_cb, request);
     894             : 
     895           0 : cleanup:
     896           0 :         free_rpc_bdev_lvol_resize(&req);
     897           0 : }
     898             : 
     899           0 : SPDK_RPC_REGISTER("bdev_lvol_resize", rpc_bdev_lvol_resize, SPDK_RPC_RUNTIME)
     900             : 
     901             : struct rpc_set_ro_lvol_bdev {
     902             :         char *name;
     903             : };
     904             : 
     905             : static void
     906           0 : free_rpc_set_ro_lvol_bdev(struct rpc_set_ro_lvol_bdev *req)
     907             : {
     908           0 :         free(req->name);
     909           0 : }
     910             : 
     911             : static const struct spdk_json_object_decoder rpc_set_ro_lvol_bdev_decoders[] = {
     912             :         {"name", offsetof(struct rpc_set_ro_lvol_bdev, name), spdk_json_decode_string},
     913             : };
     914             : 
     915             : static void
     916           0 : rpc_set_ro_lvol_bdev_cb(void *cb_arg, int lvolerrno)
     917             : {
     918           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     919             : 
     920           0 :         if (lvolerrno != 0) {
     921           0 :                 goto invalid;
     922             :         }
     923             : 
     924           0 :         spdk_jsonrpc_send_bool_response(request, true);
     925           0 :         return;
     926             : 
     927           0 : invalid:
     928           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     929             :                                          spdk_strerror(-lvolerrno));
     930             : }
     931             : 
     932             : static void
     933           0 : rpc_bdev_lvol_set_read_only(struct spdk_jsonrpc_request *request,
     934             :                             const struct spdk_json_val *params)
     935             : {
     936           0 :         struct rpc_set_ro_lvol_bdev req = {};
     937             :         struct spdk_bdev *bdev;
     938             :         struct spdk_lvol *lvol;
     939             : 
     940           0 :         SPDK_INFOLOG(lvol_rpc, "Setting lvol as read only\n");
     941             : 
     942           0 :         if (spdk_json_decode_object(params, rpc_set_ro_lvol_bdev_decoders,
     943             :                                     SPDK_COUNTOF(rpc_set_ro_lvol_bdev_decoders),
     944             :                                     &req)) {
     945           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
     946           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     947             :                                                  "spdk_json_decode_object failed");
     948           0 :                 goto cleanup;
     949             :         }
     950             : 
     951           0 :         if (req.name == NULL) {
     952           0 :                 SPDK_ERRLOG("missing name param\n");
     953           0 :                 spdk_jsonrpc_send_error_response(request, -EINVAL, "Missing name parameter");
     954           0 :                 goto cleanup;
     955             :         }
     956             : 
     957           0 :         bdev = spdk_bdev_get_by_name(req.name);
     958           0 :         if (bdev == NULL) {
     959           0 :                 SPDK_ERRLOG("no bdev for provided name %s\n", req.name);
     960           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     961           0 :                 goto cleanup;
     962             :         }
     963             : 
     964           0 :         lvol = vbdev_lvol_get_from_bdev(bdev);
     965           0 :         if (lvol == NULL) {
     966           0 :                 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     967           0 :                 goto cleanup;
     968             :         }
     969             : 
     970           0 :         vbdev_lvol_set_read_only(lvol, rpc_set_ro_lvol_bdev_cb, request);
     971             : 
     972           0 : cleanup:
     973           0 :         free_rpc_set_ro_lvol_bdev(&req);
     974           0 : }
     975             : 
     976           0 : SPDK_RPC_REGISTER("bdev_lvol_set_read_only", rpc_bdev_lvol_set_read_only, SPDK_RPC_RUNTIME)
     977             : 
     978             : struct rpc_bdev_lvol_delete {
     979             :         char *name;
     980             : };
     981             : 
     982             : static void
     983           0 : free_rpc_bdev_lvol_delete(struct rpc_bdev_lvol_delete *req)
     984             : {
     985           0 :         free(req->name);
     986           0 : }
     987             : 
     988             : static const struct spdk_json_object_decoder rpc_bdev_lvol_delete_decoders[] = {
     989             :         {"name", offsetof(struct rpc_bdev_lvol_delete, name), spdk_json_decode_string},
     990             : };
     991             : 
     992             : static void
     993           0 : rpc_bdev_lvol_delete_cb(void *cb_arg, int lvolerrno)
     994             : {
     995           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     996             : 
     997           0 :         if (lvolerrno != 0) {
     998           0 :                 goto invalid;
     999             :         }
    1000             : 
    1001           0 :         spdk_jsonrpc_send_bool_response(request, true);
    1002           0 :         return;
    1003             : 
    1004           0 : invalid:
    1005           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1006             :                                          spdk_strerror(-lvolerrno));
    1007             : }
    1008             : 
    1009             : static void
    1010           0 : rpc_bdev_lvol_delete(struct spdk_jsonrpc_request *request,
    1011             :                      const struct spdk_json_val *params)
    1012             : {
    1013           0 :         struct rpc_bdev_lvol_delete req = {};
    1014             :         struct spdk_bdev *bdev;
    1015             :         struct spdk_lvol *lvol;
    1016           0 :         struct spdk_uuid uuid;
    1017             :         char *lvs_name, *lvol_name;
    1018             : 
    1019           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_delete_decoders,
    1020             :                                     SPDK_COUNTOF(rpc_bdev_lvol_delete_decoders),
    1021             :                                     &req)) {
    1022           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
    1023           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1024             :                                                  "spdk_json_decode_object failed");
    1025           0 :                 goto cleanup;
    1026             :         }
    1027             : 
    1028             :         /* lvol is not degraded, get lvol via bdev name or alias */
    1029           0 :         bdev = spdk_bdev_get_by_name(req.name);
    1030           0 :         if (bdev != NULL) {
    1031           0 :                 lvol = vbdev_lvol_get_from_bdev(bdev);
    1032           0 :                 if (lvol != NULL) {
    1033           0 :                         goto done;
    1034             :                 }
    1035             :         }
    1036             : 
    1037             :         /* lvol is degraded, get lvol via UUID */
    1038           0 :         if (spdk_uuid_parse(&uuid, req.name) == 0) {
    1039           0 :                 lvol = spdk_lvol_get_by_uuid(&uuid);
    1040           0 :                 if (lvol != NULL) {
    1041           0 :                         goto done;
    1042             :                 }
    1043             :         }
    1044             : 
    1045             :         /* lvol is degraded, get lvol via lvs_name/lvol_name */
    1046           0 :         lvol_name = strchr(req.name, '/');
    1047           0 :         if (lvol_name != NULL) {
    1048           0 :                 *lvol_name = '\0';
    1049           0 :                 lvol_name++;
    1050           0 :                 lvs_name = req.name;
    1051           0 :                 lvol = spdk_lvol_get_by_names(lvs_name, lvol_name);
    1052           0 :                 if (lvol != NULL) {
    1053           0 :                         goto done;
    1054             :                 }
    1055             :         }
    1056             : 
    1057             :         /* Could not find lvol, degraded or not. */
    1058           0 :         spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
    1059           0 :         goto cleanup;
    1060             : 
    1061           0 : done:
    1062           0 :         vbdev_lvol_destroy(lvol, rpc_bdev_lvol_delete_cb, request);
    1063             : 
    1064           0 : cleanup:
    1065           0 :         free_rpc_bdev_lvol_delete(&req);
    1066           0 : }
    1067             : 
    1068           0 : SPDK_RPC_REGISTER("bdev_lvol_delete", rpc_bdev_lvol_delete, SPDK_RPC_RUNTIME)
    1069             : 
    1070             : struct rpc_bdev_lvol_get_lvstores {
    1071             :         char *uuid;
    1072             :         char *lvs_name;
    1073             : };
    1074             : 
    1075             : static void
    1076           0 : free_rpc_bdev_lvol_get_lvstores(struct rpc_bdev_lvol_get_lvstores *req)
    1077             : {
    1078           0 :         free(req->uuid);
    1079           0 :         free(req->lvs_name);
    1080           0 : }
    1081             : 
    1082             : static const struct spdk_json_object_decoder rpc_bdev_lvol_get_lvstores_decoders[] = {
    1083             :         {"uuid", offsetof(struct rpc_bdev_lvol_get_lvstores, uuid), spdk_json_decode_string, true},
    1084             :         {"lvs_name", offsetof(struct rpc_bdev_lvol_get_lvstores, lvs_name), spdk_json_decode_string, true},
    1085             : };
    1086             : 
    1087             : static void
    1088           0 : rpc_dump_lvol_store_info(struct spdk_json_write_ctx *w, struct lvol_store_bdev *lvs_bdev)
    1089             : {
    1090             :         struct spdk_blob_store *bs;
    1091             :         uint64_t cluster_size;
    1092             : 
    1093           0 :         bs = lvs_bdev->lvs->blobstore;
    1094           0 :         cluster_size = spdk_bs_get_cluster_size(bs);
    1095             : 
    1096           0 :         spdk_json_write_object_begin(w);
    1097             : 
    1098           0 :         spdk_json_write_named_uuid(w, "uuid", &lvs_bdev->lvs->uuid);
    1099           0 :         spdk_json_write_named_string(w, "name", lvs_bdev->lvs->name);
    1100           0 :         spdk_json_write_named_string(w, "base_bdev", spdk_bdev_get_name(lvs_bdev->bdev));
    1101           0 :         spdk_json_write_named_uint64(w, "total_data_clusters", spdk_bs_total_data_cluster_count(bs));
    1102           0 :         spdk_json_write_named_uint64(w, "free_clusters", spdk_bs_free_cluster_count(bs));
    1103           0 :         spdk_json_write_named_uint64(w, "block_size", spdk_bs_get_io_unit_size(bs));
    1104           0 :         spdk_json_write_named_uint64(w, "cluster_size", cluster_size);
    1105             : 
    1106           0 :         spdk_json_write_object_end(w);
    1107           0 : }
    1108             : 
    1109             : static void
    1110           0 : rpc_bdev_lvol_get_lvstores(struct spdk_jsonrpc_request *request,
    1111             :                            const struct spdk_json_val *params)
    1112             : {
    1113           0 :         struct rpc_bdev_lvol_get_lvstores req = {};
    1114             :         struct spdk_json_write_ctx *w;
    1115           0 :         struct lvol_store_bdev *lvs_bdev = NULL;
    1116           0 :         struct spdk_lvol_store *lvs = NULL;
    1117             :         int rc;
    1118             : 
    1119           0 :         if (params != NULL) {
    1120           0 :                 if (spdk_json_decode_object(params, rpc_bdev_lvol_get_lvstores_decoders,
    1121             :                                             SPDK_COUNTOF(rpc_bdev_lvol_get_lvstores_decoders),
    1122             :                                             &req)) {
    1123           0 :                         SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
    1124           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1125             :                                                          "spdk_json_decode_object failed");
    1126           0 :                         goto cleanup;
    1127             :                 }
    1128             : 
    1129           0 :                 rc = vbdev_get_lvol_store_by_uuid_xor_name(req.uuid, req.lvs_name, &lvs);
    1130           0 :                 if (rc != 0) {
    1131           0 :                         spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
    1132           0 :                         goto cleanup;
    1133             :                 }
    1134             : 
    1135           0 :                 lvs_bdev = vbdev_get_lvs_bdev_by_lvs(lvs);
    1136           0 :                 if (lvs_bdev == NULL) {
    1137           0 :                         spdk_jsonrpc_send_error_response(request, ENODEV, spdk_strerror(-ENODEV));
    1138           0 :                         goto cleanup;
    1139             :                 }
    1140             :         }
    1141             : 
    1142           0 :         w = spdk_jsonrpc_begin_result(request);
    1143           0 :         spdk_json_write_array_begin(w);
    1144             : 
    1145           0 :         if (lvs_bdev != NULL) {
    1146           0 :                 rpc_dump_lvol_store_info(w, lvs_bdev);
    1147             :         } else {
    1148           0 :                 for (lvs_bdev = vbdev_lvol_store_first(); lvs_bdev != NULL;
    1149           0 :                      lvs_bdev = vbdev_lvol_store_next(lvs_bdev)) {
    1150           0 :                         rpc_dump_lvol_store_info(w, lvs_bdev);
    1151             :                 }
    1152             :         }
    1153           0 :         spdk_json_write_array_end(w);
    1154             : 
    1155           0 :         spdk_jsonrpc_end_result(request, w);
    1156             : 
    1157           0 : cleanup:
    1158           0 :         free_rpc_bdev_lvol_get_lvstores(&req);
    1159           0 : }
    1160             : 
    1161           0 : SPDK_RPC_REGISTER("bdev_lvol_get_lvstores", rpc_bdev_lvol_get_lvstores, SPDK_RPC_RUNTIME)
    1162           0 : SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_lvol_get_lvstores, get_lvol_stores)
    1163             : 
    1164             : struct rpc_bdev_lvol_get_lvols {
    1165             :         char *lvs_uuid;
    1166             :         char *lvs_name;
    1167             : };
    1168             : 
    1169             : static void
    1170           0 : free_rpc_bdev_lvol_get_lvols(struct rpc_bdev_lvol_get_lvols *req)
    1171             : {
    1172           0 :         free(req->lvs_uuid);
    1173           0 :         free(req->lvs_name);
    1174           0 : }
    1175             : 
    1176             : static const struct spdk_json_object_decoder rpc_bdev_lvol_get_lvols_decoders[] = {
    1177             :         {"lvs_uuid", offsetof(struct rpc_bdev_lvol_get_lvols, lvs_uuid), spdk_json_decode_string, true},
    1178             :         {"lvs_name", offsetof(struct rpc_bdev_lvol_get_lvols, lvs_name), spdk_json_decode_string, true},
    1179             : };
    1180             : 
    1181             : static void
    1182           0 : rpc_dump_lvol(struct spdk_json_write_ctx *w, struct spdk_lvol *lvol)
    1183             : {
    1184           0 :         struct spdk_lvol_store *lvs = lvol->lvol_store;
    1185             : 
    1186           0 :         spdk_json_write_object_begin(w);
    1187             : 
    1188           0 :         spdk_json_write_named_string_fmt(w, "alias", "%s/%s", lvs->name, lvol->name);
    1189           0 :         spdk_json_write_named_string(w, "uuid", lvol->uuid_str);
    1190           0 :         spdk_json_write_named_string(w, "name", lvol->name);
    1191           0 :         spdk_json_write_named_bool(w, "is_thin_provisioned", spdk_blob_is_thin_provisioned(lvol->blob));
    1192           0 :         spdk_json_write_named_bool(w, "is_snapshot", spdk_blob_is_snapshot(lvol->blob));
    1193           0 :         spdk_json_write_named_bool(w, "is_clone", spdk_blob_is_clone(lvol->blob));
    1194           0 :         spdk_json_write_named_bool(w, "is_esnap_clone", spdk_blob_is_esnap_clone(lvol->blob));
    1195           0 :         spdk_json_write_named_bool(w, "is_degraded", spdk_blob_is_degraded(lvol->blob));
    1196             : 
    1197           0 :         spdk_json_write_named_object_begin(w, "lvs");
    1198           0 :         spdk_json_write_named_string(w, "name", lvs->name);
    1199           0 :         spdk_json_write_named_uuid(w, "uuid", &lvs->uuid);
    1200           0 :         spdk_json_write_object_end(w);
    1201             : 
    1202           0 :         spdk_json_write_object_end(w);
    1203           0 : }
    1204             : 
    1205             : static void
    1206           0 : rpc_dump_lvols(struct spdk_json_write_ctx *w, struct lvol_store_bdev *lvs_bdev)
    1207             : {
    1208           0 :         struct spdk_lvol_store *lvs = lvs_bdev->lvs;
    1209             :         struct spdk_lvol *lvol;
    1210             : 
    1211           0 :         TAILQ_FOREACH(lvol, &lvs->lvols, link) {
    1212           0 :                 rpc_dump_lvol(w, lvol);
    1213             :         }
    1214           0 : }
    1215             : 
    1216             : static void
    1217           0 : rpc_bdev_lvol_get_lvols(struct spdk_jsonrpc_request *request, const struct spdk_json_val *params)
    1218             : {
    1219           0 :         struct rpc_bdev_lvol_get_lvols req = {};
    1220             :         struct spdk_json_write_ctx *w;
    1221           0 :         struct lvol_store_bdev *lvs_bdev = NULL;
    1222           0 :         struct spdk_lvol_store *lvs = NULL;
    1223             :         int rc;
    1224             : 
    1225           0 :         if (params != NULL) {
    1226           0 :                 if (spdk_json_decode_object(params, rpc_bdev_lvol_get_lvols_decoders,
    1227             :                                             SPDK_COUNTOF(rpc_bdev_lvol_get_lvols_decoders),
    1228             :                                             &req)) {
    1229           0 :                         SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
    1230           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1231             :                                                          "spdk_json_decode_object failed");
    1232           0 :                         goto cleanup;
    1233             :                 }
    1234             : 
    1235           0 :                 rc = vbdev_get_lvol_store_by_uuid_xor_name(req.lvs_uuid, req.lvs_name, &lvs);
    1236           0 :                 if (rc != 0) {
    1237           0 :                         spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
    1238           0 :                         goto cleanup;
    1239             :                 }
    1240             : 
    1241           0 :                 lvs_bdev = vbdev_get_lvs_bdev_by_lvs(lvs);
    1242           0 :                 if (lvs_bdev == NULL) {
    1243           0 :                         spdk_jsonrpc_send_error_response(request, ENODEV, spdk_strerror(-ENODEV));
    1244           0 :                         goto cleanup;
    1245             :                 }
    1246             :         }
    1247             : 
    1248           0 :         w = spdk_jsonrpc_begin_result(request);
    1249           0 :         spdk_json_write_array_begin(w);
    1250             : 
    1251           0 :         if (lvs_bdev != NULL) {
    1252           0 :                 rpc_dump_lvols(w, lvs_bdev);
    1253             :         } else {
    1254           0 :                 for (lvs_bdev = vbdev_lvol_store_first(); lvs_bdev != NULL;
    1255           0 :                      lvs_bdev = vbdev_lvol_store_next(lvs_bdev)) {
    1256           0 :                         rpc_dump_lvols(w, lvs_bdev);
    1257             :                 }
    1258             :         }
    1259           0 :         spdk_json_write_array_end(w);
    1260             : 
    1261           0 :         spdk_jsonrpc_end_result(request, w);
    1262             : 
    1263           0 : cleanup:
    1264           0 :         free_rpc_bdev_lvol_get_lvols(&req);
    1265           0 : }
    1266             : 
    1267           0 : SPDK_RPC_REGISTER("bdev_lvol_get_lvols", rpc_bdev_lvol_get_lvols, SPDK_RPC_RUNTIME)
    1268             : 
    1269             : struct rpc_bdev_lvol_grow_lvstore {
    1270             :         char *uuid;
    1271             :         char *lvs_name;
    1272             : };
    1273             : 
    1274             : static void
    1275           0 : free_rpc_bdev_lvol_grow_lvstore(struct rpc_bdev_lvol_grow_lvstore *req)
    1276             : {
    1277           0 :         free(req->uuid);
    1278           0 :         free(req->lvs_name);
    1279           0 : }
    1280             : 
    1281             : static const struct spdk_json_object_decoder rpc_bdev_lvol_grow_lvstore_decoders[] = {
    1282             :         {"uuid", offsetof(struct rpc_bdev_lvol_grow_lvstore, uuid), spdk_json_decode_string, true},
    1283             :         {"lvs_name", offsetof(struct rpc_bdev_lvol_grow_lvstore, lvs_name), spdk_json_decode_string, true},
    1284             : };
    1285             : 
    1286             : static void
    1287           0 : rpc_bdev_lvol_grow_lvstore_cb(void *cb_arg, int lvserrno)
    1288             : {
    1289           0 :         struct spdk_jsonrpc_request *request = cb_arg;
    1290             : 
    1291           0 :         if (lvserrno != 0) {
    1292           0 :                 goto invalid;
    1293             :         }
    1294             : 
    1295           0 :         spdk_jsonrpc_send_bool_response(request, true);
    1296           0 :         return;
    1297             : 
    1298           0 : invalid:
    1299           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1300             :                                          spdk_strerror(-lvserrno));
    1301             : }
    1302             : 
    1303             : static void
    1304           0 : rpc_bdev_lvol_grow_lvstore(struct spdk_jsonrpc_request *request,
    1305             :                            const struct spdk_json_val *params)
    1306             : {
    1307           0 :         struct rpc_bdev_lvol_grow_lvstore req = {};
    1308           0 :         struct spdk_lvol_store *lvs = NULL;
    1309             :         int rc;
    1310             : 
    1311           0 :         if (spdk_json_decode_object(params, rpc_bdev_lvol_grow_lvstore_decoders,
    1312             :                                     SPDK_COUNTOF(rpc_bdev_lvol_grow_lvstore_decoders),
    1313             :                                     &req)) {
    1314           0 :                 SPDK_INFOLOG(lvol_rpc, "spdk_json_decode_object failed\n");
    1315           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1316             :                                                  "spdk_json_decode_object failed");
    1317           0 :                 goto cleanup;
    1318             :         }
    1319             : 
    1320           0 :         rc = vbdev_get_lvol_store_by_uuid_xor_name(req.uuid, req.lvs_name, &lvs);
    1321           0 :         if (rc != 0) {
    1322           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
    1323           0 :                 goto cleanup;
    1324             :         }
    1325           0 :         spdk_bdev_update_bs_blockcnt(lvs->bs_dev);
    1326           0 :         spdk_lvs_grow_live(lvs, rpc_bdev_lvol_grow_lvstore_cb, request);
    1327             : 
    1328           0 : cleanup:
    1329           0 :         free_rpc_bdev_lvol_grow_lvstore(&req);
    1330           0 : }
    1331           0 : SPDK_RPC_REGISTER("bdev_lvol_grow_lvstore", rpc_bdev_lvol_grow_lvstore, SPDK_RPC_RUNTIME)

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