LCOV - code coverage report
Current view: top level - lib/nvmf - nvmf_rpc.c (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 0 1524 0.0 %
Date: 2024-12-03 18:27:55 Functions: 0 121 0.0 %

          Line data    Source code
       1             : /*   SPDX-License-Identifier: BSD-3-Clause
       2             :  *   Copyright (C) 2016 Intel Corporation. All rights reserved.
       3             :  *   Copyright (c) 2018-2021 Mellanox Technologies LTD. All rights reserved.
       4             :  *   Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
       5             :  */
       6             : 
       7             : #include "spdk/bdev.h"
       8             : #include "spdk/log.h"
       9             : #include "spdk/rpc.h"
      10             : #include "spdk/env.h"
      11             : #include "spdk/nvme.h"
      12             : #include "spdk/nvmf.h"
      13             : #include "spdk/string.h"
      14             : #include "spdk/util.h"
      15             : #include "spdk/bit_array.h"
      16             : #include "spdk/config.h"
      17             : 
      18             : #include "spdk_internal/assert.h"
      19             : 
      20             : #include "nvmf_internal.h"
      21             : 
      22             : static int rpc_ana_state_parse(const char *str, enum spdk_nvme_ana_state *ana_state);
      23             : 
      24             : static int
      25           0 : json_write_hex_str(struct spdk_json_write_ctx *w, const void *data, size_t size)
      26             : {
      27             :         static const char hex_char[16] = "0123456789ABCDEF";
      28           0 :         const uint8_t *buf = data;
      29             :         char *str, *out;
      30             :         int rc;
      31             : 
      32           0 :         str = malloc(size * 2 + 1);
      33           0 :         if (str == NULL) {
      34           0 :                 return -1;
      35             :         }
      36             : 
      37           0 :         out = str;
      38           0 :         while (size--) {
      39           0 :                 unsigned byte = *buf++;
      40             : 
      41           0 :                 out[0] = hex_char[(byte >> 4) & 0xF];
      42           0 :                 out[1] = hex_char[byte & 0xF];
      43             : 
      44           0 :                 out += 2;
      45             :         }
      46           0 :         *out = '\0';
      47             : 
      48           0 :         rc = spdk_json_write_string(w, str);
      49           0 :         free(str);
      50             : 
      51           0 :         return rc;
      52             : }
      53             : 
      54             : static int
      55           0 : hex_nybble_to_num(char c)
      56             : {
      57           0 :         if (c >= '0' && c <= '9') {
      58           0 :                 return c - '0';
      59             :         }
      60             : 
      61           0 :         if (c >= 'a' && c <= 'f') {
      62           0 :                 return c - 'a' + 0xA;
      63             :         }
      64             : 
      65           0 :         if (c >= 'A' && c <= 'F') {
      66           0 :                 return c - 'A' + 0xA;
      67             :         }
      68             : 
      69           0 :         return -1;
      70             : }
      71             : 
      72             : static int
      73           0 : hex_byte_to_num(const char *str)
      74             : {
      75             :         int hi, lo;
      76             : 
      77           0 :         hi = hex_nybble_to_num(str[0]);
      78           0 :         if (hi < 0) {
      79           0 :                 return hi;
      80             :         }
      81             : 
      82           0 :         lo = hex_nybble_to_num(str[1]);
      83           0 :         if (lo < 0) {
      84           0 :                 return lo;
      85             :         }
      86             : 
      87           0 :         return hi * 16 + lo;
      88             : }
      89             : 
      90             : static int
      91           0 : decode_hex_string_be(const char *str, uint8_t *out, size_t size)
      92             : {
      93             :         size_t i;
      94             : 
      95             :         /* Decode a string in "ABCDEF012345" format to its binary representation */
      96           0 :         for (i = 0; i < size; i++) {
      97           0 :                 int num = hex_byte_to_num(str);
      98             : 
      99           0 :                 if (num < 0) {
     100             :                         /* Invalid hex byte or end of string */
     101           0 :                         return -1;
     102             :                 }
     103             : 
     104           0 :                 out[i] = (uint8_t)num;
     105           0 :                 str += 2;
     106             :         }
     107             : 
     108           0 :         if (i != size || *str != '\0') {
     109             :                 /* Length mismatch */
     110           0 :                 return -1;
     111             :         }
     112             : 
     113           0 :         return 0;
     114             : }
     115             : 
     116             : static int
     117           0 : decode_ns_nguid(const struct spdk_json_val *val, void *out)
     118             : {
     119           0 :         char *str = NULL;
     120             :         int rc;
     121             : 
     122           0 :         rc = spdk_json_decode_string(val, &str);
     123           0 :         if (rc == 0) {
     124             :                 /* 16-byte NGUID */
     125           0 :                 rc = decode_hex_string_be(str, out, 16);
     126             :         }
     127             : 
     128           0 :         free(str);
     129           0 :         return rc;
     130             : }
     131             : 
     132             : static int
     133           0 : decode_ns_eui64(const struct spdk_json_val *val, void *out)
     134             : {
     135           0 :         char *str = NULL;
     136             :         int rc;
     137             : 
     138           0 :         rc = spdk_json_decode_string(val, &str);
     139           0 :         if (rc == 0) {
     140             :                 /* 8-byte EUI-64 */
     141           0 :                 rc = decode_hex_string_be(str, out, 8);
     142             :         }
     143             : 
     144           0 :         free(str);
     145           0 :         return rc;
     146             : }
     147             : 
     148             : struct rpc_get_subsystem {
     149             :         char *nqn;
     150             :         char *tgt_name;
     151             : };
     152             : 
     153             : static const struct spdk_json_object_decoder rpc_get_subsystem_decoders[] = {
     154             :         {"nqn", offsetof(struct rpc_get_subsystem, nqn), spdk_json_decode_string, true},
     155             :         {"tgt_name", offsetof(struct rpc_get_subsystem, tgt_name), spdk_json_decode_string, true},
     156             : };
     157             : 
     158             : static void
     159           0 : dump_nvmf_subsystem(struct spdk_json_write_ctx *w, struct spdk_nvmf_subsystem *subsystem)
     160             : {
     161             :         struct spdk_nvmf_host                   *host;
     162             :         struct spdk_nvmf_subsystem_listener     *listener;
     163             : 
     164           0 :         spdk_json_write_object_begin(w);
     165             : 
     166           0 :         spdk_json_write_named_string(w, "nqn", spdk_nvmf_subsystem_get_nqn(subsystem));
     167           0 :         spdk_json_write_name(w, "subtype");
     168           0 :         if (spdk_nvmf_subsystem_get_type(subsystem) == SPDK_NVMF_SUBTYPE_NVME) {
     169           0 :                 spdk_json_write_string(w, "NVMe");
     170             :         } else {
     171           0 :                 spdk_json_write_string(w, "Discovery");
     172             :         }
     173             : 
     174           0 :         spdk_json_write_named_array_begin(w, "listen_addresses");
     175             : 
     176           0 :         for (listener = spdk_nvmf_subsystem_get_first_listener(subsystem); listener != NULL;
     177           0 :              listener = spdk_nvmf_subsystem_get_next_listener(subsystem, listener)) {
     178             :                 const struct spdk_nvme_transport_id *trid;
     179             : 
     180           0 :                 trid = spdk_nvmf_subsystem_listener_get_trid(listener);
     181             : 
     182           0 :                 spdk_json_write_object_begin(w);
     183           0 :                 nvmf_transport_listen_dump_trid(trid, w);
     184           0 :                 spdk_json_write_object_end(w);
     185             :         }
     186           0 :         spdk_json_write_array_end(w);
     187             : 
     188           0 :         spdk_json_write_named_bool(w, "allow_any_host",
     189           0 :                                    spdk_nvmf_subsystem_get_allow_any_host(subsystem));
     190             : 
     191           0 :         spdk_json_write_named_array_begin(w, "hosts");
     192             : 
     193           0 :         for (host = spdk_nvmf_subsystem_get_first_host(subsystem); host != NULL;
     194           0 :              host = spdk_nvmf_subsystem_get_next_host(subsystem, host)) {
     195           0 :                 spdk_json_write_object_begin(w);
     196           0 :                 spdk_json_write_named_string(w, "nqn", spdk_nvmf_host_get_nqn(host));
     197           0 :                 if (host->dhchap_key != NULL) {
     198           0 :                         spdk_json_write_named_string(w, "dhchap_key",
     199             :                                                      spdk_key_get_name(host->dhchap_key));
     200             :                 }
     201           0 :                 if (host->dhchap_ctrlr_key != NULL) {
     202           0 :                         spdk_json_write_named_string(w, "dhchap_ctrlr_key",
     203             :                                                      spdk_key_get_name(host->dhchap_ctrlr_key));
     204             :                 }
     205           0 :                 spdk_json_write_object_end(w);
     206             :         }
     207           0 :         spdk_json_write_array_end(w);
     208             : 
     209           0 :         if (spdk_nvmf_subsystem_get_type(subsystem) == SPDK_NVMF_SUBTYPE_NVME) {
     210             :                 struct spdk_nvmf_ns *ns;
     211           0 :                 struct spdk_nvmf_ns_opts ns_opts;
     212             :                 uint32_t max_namespaces;
     213             : 
     214           0 :                 spdk_json_write_named_string(w, "serial_number", spdk_nvmf_subsystem_get_sn(subsystem));
     215             : 
     216           0 :                 spdk_json_write_named_string(w, "model_number", spdk_nvmf_subsystem_get_mn(subsystem));
     217             : 
     218           0 :                 max_namespaces = spdk_nvmf_subsystem_get_max_namespaces(subsystem);
     219           0 :                 if (max_namespaces != 0) {
     220           0 :                         spdk_json_write_named_uint32(w, "max_namespaces", max_namespaces);
     221             :                 }
     222             : 
     223           0 :                 spdk_json_write_named_uint32(w, "min_cntlid", spdk_nvmf_subsystem_get_min_cntlid(subsystem));
     224           0 :                 spdk_json_write_named_uint32(w, "max_cntlid", spdk_nvmf_subsystem_get_max_cntlid(subsystem));
     225             : 
     226           0 :                 spdk_json_write_named_array_begin(w, "namespaces");
     227           0 :                 for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
     228           0 :                      ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
     229           0 :                         spdk_nvmf_ns_get_opts(ns, &ns_opts, sizeof(ns_opts));
     230           0 :                         spdk_json_write_object_begin(w);
     231           0 :                         spdk_json_write_named_int32(w, "nsid", spdk_nvmf_ns_get_id(ns));
     232           0 :                         spdk_json_write_named_string(w, "bdev_name",
     233           0 :                                                      spdk_bdev_get_name(spdk_nvmf_ns_get_bdev(ns)));
     234             :                         /* NOTE: "name" is kept for compatibility only - new code should use bdev_name. */
     235           0 :                         spdk_json_write_named_string(w, "name",
     236           0 :                                                      spdk_bdev_get_name(spdk_nvmf_ns_get_bdev(ns)));
     237             : 
     238           0 :                         if (!spdk_mem_all_zero(ns_opts.nguid, sizeof(ns_opts.nguid))) {
     239           0 :                                 spdk_json_write_name(w, "nguid");
     240           0 :                                 json_write_hex_str(w, ns_opts.nguid, sizeof(ns_opts.nguid));
     241             :                         }
     242             : 
     243           0 :                         if (!spdk_mem_all_zero(ns_opts.eui64, sizeof(ns_opts.eui64))) {
     244           0 :                                 spdk_json_write_name(w, "eui64");
     245           0 :                                 json_write_hex_str(w, ns_opts.eui64, sizeof(ns_opts.eui64));
     246             :                         }
     247             : 
     248           0 :                         if (!spdk_uuid_is_null(&ns_opts.uuid)) {
     249           0 :                                 spdk_json_write_named_uuid(w, "uuid", &ns_opts.uuid);
     250             :                         }
     251             : 
     252           0 :                         if (spdk_nvmf_subsystem_get_ana_reporting(subsystem)) {
     253           0 :                                 spdk_json_write_named_uint32(w, "anagrpid", ns_opts.anagrpid);
     254             :                         }
     255             : 
     256           0 :                         spdk_json_write_object_end(w);
     257             :                 }
     258           0 :                 spdk_json_write_array_end(w);
     259             :         }
     260           0 :         spdk_json_write_object_end(w);
     261           0 : }
     262             : 
     263             : static void
     264           0 : rpc_nvmf_get_subsystems(struct spdk_jsonrpc_request *request,
     265             :                         const struct spdk_json_val *params)
     266             : {
     267           0 :         struct rpc_get_subsystem req = { 0 };
     268             :         struct spdk_json_write_ctx *w;
     269           0 :         struct spdk_nvmf_subsystem *subsystem = NULL;
     270             :         struct spdk_nvmf_tgt *tgt;
     271             : 
     272           0 :         if (params) {
     273           0 :                 if (spdk_json_decode_object(params, rpc_get_subsystem_decoders,
     274             :                                             SPDK_COUNTOF(rpc_get_subsystem_decoders),
     275             :                                             &req)) {
     276           0 :                         SPDK_ERRLOG("spdk_json_decode_object failed\n");
     277           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
     278           0 :                         return;
     279             :                 }
     280             :         }
     281             : 
     282           0 :         tgt = spdk_nvmf_get_tgt(req.tgt_name);
     283           0 :         if (!tgt) {
     284           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     285             :                                                  "Unable to find a target.");
     286           0 :                 free(req.tgt_name);
     287           0 :                 free(req.nqn);
     288           0 :                 return;
     289             :         }
     290             : 
     291           0 :         if (req.nqn) {
     292           0 :                 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, req.nqn);
     293           0 :                 if (!subsystem) {
     294           0 :                         SPDK_ERRLOG("subsystem '%s' does not exist\n", req.nqn);
     295           0 :                         spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
     296           0 :                         free(req.tgt_name);
     297           0 :                         free(req.nqn);
     298           0 :                         return;
     299             :                 }
     300             :         }
     301             : 
     302           0 :         w = spdk_jsonrpc_begin_result(request);
     303           0 :         spdk_json_write_array_begin(w);
     304             : 
     305           0 :         if (subsystem) {
     306           0 :                 dump_nvmf_subsystem(w, subsystem);
     307             :         } else {
     308           0 :                 for (subsystem = spdk_nvmf_subsystem_get_first(tgt); subsystem != NULL;
     309           0 :                      subsystem = spdk_nvmf_subsystem_get_next(subsystem)) {
     310           0 :                         dump_nvmf_subsystem(w, subsystem);
     311             :                 }
     312             :         }
     313             : 
     314           0 :         spdk_json_write_array_end(w);
     315           0 :         spdk_jsonrpc_end_result(request, w);
     316           0 :         free(req.tgt_name);
     317           0 :         free(req.nqn);
     318             : }
     319           0 : SPDK_RPC_REGISTER("nvmf_get_subsystems", rpc_nvmf_get_subsystems, SPDK_RPC_RUNTIME)
     320             : 
     321             : struct rpc_subsystem_create {
     322             :         char *nqn;
     323             :         char *serial_number;
     324             :         char *model_number;
     325             :         char *tgt_name;
     326             :         uint32_t max_namespaces;
     327             :         bool allow_any_host;
     328             :         bool ana_reporting;
     329             :         uint16_t min_cntlid;
     330             :         uint16_t max_cntlid;
     331             :         uint64_t max_discard_size_kib;
     332             :         uint64_t max_write_zeroes_size_kib;
     333             :         bool passthrough;
     334             : };
     335             : 
     336             : static const struct spdk_json_object_decoder rpc_subsystem_create_decoders[] = {
     337             :         {"nqn", offsetof(struct rpc_subsystem_create, nqn), spdk_json_decode_string},
     338             :         {"serial_number", offsetof(struct rpc_subsystem_create, serial_number), spdk_json_decode_string, true},
     339             :         {"model_number", offsetof(struct rpc_subsystem_create, model_number), spdk_json_decode_string, true},
     340             :         {"tgt_name", offsetof(struct rpc_subsystem_create, tgt_name), spdk_json_decode_string, true},
     341             :         {"max_namespaces", offsetof(struct rpc_subsystem_create, max_namespaces), spdk_json_decode_uint32, true},
     342             :         {"allow_any_host", offsetof(struct rpc_subsystem_create, allow_any_host), spdk_json_decode_bool, true},
     343             :         {"ana_reporting", offsetof(struct rpc_subsystem_create, ana_reporting), spdk_json_decode_bool, true},
     344             :         {"min_cntlid", offsetof(struct rpc_subsystem_create, min_cntlid), spdk_json_decode_uint16, true},
     345             :         {"max_cntlid", offsetof(struct rpc_subsystem_create, max_cntlid), spdk_json_decode_uint16, true},
     346             :         {"max_discard_size_kib", offsetof(struct rpc_subsystem_create, max_discard_size_kib), spdk_json_decode_uint64, true},
     347             :         {"max_write_zeroes_size_kib", offsetof(struct rpc_subsystem_create, max_write_zeroes_size_kib), spdk_json_decode_uint64, true},
     348             :         {"passthrough", offsetof(struct rpc_subsystem_create, passthrough), spdk_json_decode_bool, true},
     349             : };
     350             : 
     351             : static void
     352           0 : rpc_nvmf_subsystem_started(struct spdk_nvmf_subsystem *subsystem,
     353             :                            void *cb_arg, int status)
     354             : {
     355           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     356             : 
     357           0 :         if (!status) {
     358           0 :                 spdk_jsonrpc_send_bool_response(request, true);
     359             :         } else {
     360           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     361             :                                                      "Subsystem %s start failed",
     362           0 :                                                      subsystem->subnqn);
     363           0 :                 spdk_nvmf_subsystem_destroy(subsystem, NULL, NULL);
     364             :         }
     365           0 : }
     366             : 
     367             : static void
     368           0 : rpc_nvmf_create_subsystem(struct spdk_jsonrpc_request *request,
     369             :                           const struct spdk_json_val *params)
     370             : {
     371             :         struct rpc_subsystem_create *req;
     372           0 :         struct spdk_nvmf_subsystem *subsystem = NULL;
     373             :         struct spdk_nvmf_tgt *tgt;
     374           0 :         int rc = -1;
     375             : 
     376           0 :         req = calloc(1, sizeof(*req));
     377           0 :         if (!req) {
     378           0 :                 SPDK_ERRLOG("Memory allocation failed\n");
     379           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     380             :                                                  "Memory allocation failed");
     381           0 :                 return;
     382             :         }
     383           0 :         req->min_cntlid = NVMF_MIN_CNTLID;
     384           0 :         req->max_cntlid = NVMF_MAX_CNTLID;
     385             : 
     386           0 :         if (spdk_json_decode_object(params, rpc_subsystem_create_decoders,
     387             :                                     SPDK_COUNTOF(rpc_subsystem_create_decoders),
     388             :                                     req)) {
     389           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
     390           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
     391           0 :                 goto cleanup;
     392             :         }
     393             : 
     394           0 :         tgt = spdk_nvmf_get_tgt(req->tgt_name);
     395           0 :         if (!tgt) {
     396           0 :                 SPDK_ERRLOG("Unable to find target %s\n", req->tgt_name);
     397           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     398             :                                                      "Unable to find target %s", req->tgt_name);
     399           0 :                 goto cleanup;
     400             :         }
     401             : 
     402           0 :         subsystem = spdk_nvmf_subsystem_create(tgt, req->nqn, SPDK_NVMF_SUBTYPE_NVME,
     403             :                                                req->max_namespaces);
     404           0 :         if (!subsystem) {
     405           0 :                 SPDK_ERRLOG("Unable to create subsystem %s\n", req->nqn);
     406           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     407             :                                                      "Unable to create subsystem %s", req->nqn);
     408           0 :                 goto cleanup;
     409             :         }
     410             : 
     411           0 :         if (req->serial_number) {
     412           0 :                 if (spdk_nvmf_subsystem_set_sn(subsystem, req->serial_number)) {
     413           0 :                         SPDK_ERRLOG("Subsystem %s: invalid serial number '%s'\n", req->nqn, req->serial_number);
     414           0 :                         spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     415             :                                                              "Invalid SN %s", req->serial_number);
     416           0 :                         goto cleanup;
     417             :                 }
     418             :         }
     419             : 
     420           0 :         if (req->model_number) {
     421           0 :                 if (spdk_nvmf_subsystem_set_mn(subsystem, req->model_number)) {
     422           0 :                         SPDK_ERRLOG("Subsystem %s: invalid model number '%s'\n", req->nqn, req->model_number);
     423           0 :                         spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     424             :                                                              "Invalid MN %s", req->model_number);
     425           0 :                         goto cleanup;
     426             :                 }
     427             :         }
     428             : 
     429           0 :         spdk_nvmf_subsystem_set_allow_any_host(subsystem, req->allow_any_host);
     430             : 
     431           0 :         spdk_nvmf_subsystem_set_ana_reporting(subsystem, req->ana_reporting);
     432             : 
     433           0 :         if (spdk_nvmf_subsystem_set_cntlid_range(subsystem, req->min_cntlid, req->max_cntlid)) {
     434           0 :                 SPDK_ERRLOG("Subsystem %s: invalid cntlid range [%u-%u]\n", req->nqn, req->min_cntlid,
     435             :                             req->max_cntlid);
     436           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     437           0 :                                                      "Invalid cntlid range [%u-%u]", req->min_cntlid, req->max_cntlid);
     438           0 :                 goto cleanup;
     439             :         }
     440             : 
     441           0 :         subsystem->max_discard_size_kib = req->max_discard_size_kib;
     442             : 
     443             :         /* max_write_zeroes_size_kib must be aligned to 4 and power of 2 */
     444           0 :         if (req->max_write_zeroes_size_kib == 0 || (req->max_write_zeroes_size_kib > 2 &&
     445           0 :                         spdk_u64_is_pow2(req->max_write_zeroes_size_kib))) {
     446           0 :                 subsystem->max_write_zeroes_size_kib = req->max_write_zeroes_size_kib;
     447             :         } else {
     448           0 :                 SPDK_ERRLOG("Subsystem %s: invalid max_write_zeroes_size_kib %"PRIu64"\n", req->nqn,
     449             :                             req->max_write_zeroes_size_kib);
     450           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     451             :                                                      "Invalid max_write_zeroes_size_kib %"PRIu64, req->max_write_zeroes_size_kib);
     452           0 :                 goto cleanup;
     453             :         }
     454             : 
     455           0 :         subsystem->passthrough = req->passthrough;
     456             : 
     457           0 :         rc = spdk_nvmf_subsystem_start(subsystem,
     458             :                                        rpc_nvmf_subsystem_started,
     459             :                                        request);
     460           0 :         if (rc) {
     461           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     462             :                                                  "Failed to start subsystem");
     463             :         }
     464             : 
     465           0 : cleanup:
     466           0 :         free(req->nqn);
     467           0 :         free(req->tgt_name);
     468           0 :         free(req->serial_number);
     469           0 :         free(req->model_number);
     470           0 :         free(req);
     471             : 
     472           0 :         if (rc && subsystem) {
     473           0 :                 spdk_nvmf_subsystem_destroy(subsystem, NULL, NULL);
     474             :         }
     475             : }
     476           0 : SPDK_RPC_REGISTER("nvmf_create_subsystem", rpc_nvmf_create_subsystem, SPDK_RPC_RUNTIME)
     477             : 
     478             : struct rpc_delete_subsystem {
     479             :         char *nqn;
     480             :         char *tgt_name;
     481             : };
     482             : 
     483             : static void
     484           0 : free_rpc_delete_subsystem(struct rpc_delete_subsystem *r)
     485             : {
     486           0 :         free(r->nqn);
     487           0 :         free(r->tgt_name);
     488           0 : }
     489             : 
     490             : static void
     491           0 : rpc_nvmf_subsystem_destroy_complete_cb(void *cb_arg)
     492             : {
     493           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     494             : 
     495           0 :         spdk_jsonrpc_send_bool_response(request, true);
     496           0 : }
     497             : 
     498             : static void
     499           0 : rpc_nvmf_subsystem_stopped(struct spdk_nvmf_subsystem *subsystem,
     500             :                            void *cb_arg, int status)
     501             : {
     502           0 :         struct spdk_jsonrpc_request *request = cb_arg;
     503             :         int rc;
     504             : 
     505           0 :         nvmf_subsystem_remove_all_listeners(subsystem, true);
     506           0 :         rc = spdk_nvmf_subsystem_destroy(subsystem, rpc_nvmf_subsystem_destroy_complete_cb, request);
     507           0 :         if (rc) {
     508           0 :                 if (rc == -EINPROGRESS) {
     509             :                         /* response will be sent in completion callback */
     510           0 :                         return;
     511             :                 } else {
     512           0 :                         SPDK_ERRLOG("Subsystem destruction failed, rc %d\n", rc);
     513           0 :                         spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     514             :                                                              "Subsystem destruction failed, rc %d", rc);
     515           0 :                         return;
     516             :                 }
     517             :         }
     518           0 :         spdk_jsonrpc_send_bool_response(request, true);
     519             : }
     520             : 
     521             : static const struct spdk_json_object_decoder rpc_delete_subsystem_decoders[] = {
     522             :         {"nqn", offsetof(struct rpc_delete_subsystem, nqn), spdk_json_decode_string},
     523             :         {"tgt_name", offsetof(struct rpc_delete_subsystem, tgt_name), spdk_json_decode_string, true},
     524             : };
     525             : 
     526             : static void
     527           0 : rpc_nvmf_delete_subsystem(struct spdk_jsonrpc_request *request,
     528             :                           const struct spdk_json_val *params)
     529             : {
     530           0 :         struct rpc_delete_subsystem req = { 0 };
     531             :         struct spdk_nvmf_subsystem *subsystem;
     532             :         struct spdk_nvmf_tgt *tgt;
     533             :         int rc;
     534             : 
     535           0 :         if (spdk_json_decode_object(params, rpc_delete_subsystem_decoders,
     536             :                                     SPDK_COUNTOF(rpc_delete_subsystem_decoders),
     537             :                                     &req)) {
     538           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
     539           0 :                 goto invalid;
     540             :         }
     541             : 
     542           0 :         if (req.nqn == NULL) {
     543           0 :                 SPDK_ERRLOG("missing name param\n");
     544           0 :                 goto invalid;
     545             :         }
     546             : 
     547           0 :         tgt = spdk_nvmf_get_tgt(req.tgt_name);
     548           0 :         if (!tgt) {
     549           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     550             :                                                  "Unable to find a target.");
     551           0 :                 goto invalid_custom_response;
     552             :         }
     553             : 
     554           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, req.nqn);
     555           0 :         if (!subsystem) {
     556           0 :                 goto invalid;
     557             :         }
     558             : 
     559           0 :         free_rpc_delete_subsystem(&req);
     560             : 
     561           0 :         rc = spdk_nvmf_subsystem_stop(subsystem,
     562             :                                       rpc_nvmf_subsystem_stopped,
     563             :                                       request);
     564           0 :         if (rc == -EBUSY) {
     565           0 :                 SPDK_ERRLOG("Subsystem currently in another state change try again later.\n");
     566           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     567             :                                                  "Subsystem currently in another state change try again later.");
     568           0 :         } else if (rc != 0) {
     569           0 :                 SPDK_ERRLOG("Unable to change state on subsystem. rc=%d\n", rc);
     570           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     571             :                                                      "Unable to change state on subsystem. rc=%d", rc);
     572             :         }
     573             : 
     574           0 :         return;
     575             : 
     576           0 : invalid:
     577           0 :         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
     578           0 : invalid_custom_response:
     579           0 :         free_rpc_delete_subsystem(&req);
     580             : }
     581           0 : SPDK_RPC_REGISTER("nvmf_delete_subsystem", rpc_nvmf_delete_subsystem, SPDK_RPC_RUNTIME)
     582             : 
     583             : struct rpc_listen_address {
     584             :         char *trtype;
     585             :         char *adrfam;
     586             :         char *traddr;
     587             :         char *trsvcid;
     588             : };
     589             : 
     590             : static const struct spdk_json_object_decoder rpc_listen_address_decoders[] = {
     591             :         {"trtype", offsetof(struct rpc_listen_address, trtype), spdk_json_decode_string, true},
     592             :         {"adrfam", offsetof(struct rpc_listen_address, adrfam), spdk_json_decode_string, true},
     593             :         {"traddr", offsetof(struct rpc_listen_address, traddr), spdk_json_decode_string},
     594             :         {"trsvcid", offsetof(struct rpc_listen_address, trsvcid), spdk_json_decode_string, true},
     595             : };
     596             : 
     597             : static int
     598           0 : decode_rpc_listen_address(const struct spdk_json_val *val, void *out)
     599             : {
     600           0 :         struct rpc_listen_address *req = (struct rpc_listen_address *)out;
     601             : 
     602           0 :         return spdk_json_decode_object(val, rpc_listen_address_decoders,
     603             :                                        SPDK_COUNTOF(rpc_listen_address_decoders), req);
     604             : }
     605             : 
     606             : static void
     607           0 : free_rpc_listen_address(struct rpc_listen_address *r)
     608             : {
     609           0 :         free(r->trtype);
     610           0 :         free(r->adrfam);
     611           0 :         free(r->traddr);
     612           0 :         free(r->trsvcid);
     613           0 : }
     614             : 
     615             : enum nvmf_rpc_listen_op {
     616             :         NVMF_RPC_LISTEN_ADD,
     617             :         NVMF_RPC_LISTEN_REMOVE,
     618             :         NVMF_RPC_LISTEN_SET_ANA_STATE,
     619             : };
     620             : 
     621             : struct nvmf_rpc_listener_ctx {
     622             :         char                            *nqn;
     623             :         char                            *tgt_name;
     624             :         struct spdk_nvmf_tgt            *tgt;
     625             :         struct spdk_nvmf_transport      *transport;
     626             :         struct spdk_nvmf_subsystem      *subsystem;
     627             :         struct rpc_listen_address       address;
     628             :         char                            *ana_state_str;
     629             :         enum spdk_nvme_ana_state        ana_state;
     630             :         uint32_t                        anagrpid;
     631             : 
     632             :         struct spdk_jsonrpc_request     *request;
     633             :         struct spdk_nvme_transport_id   trid;
     634             :         enum nvmf_rpc_listen_op         op;
     635             :         bool                            response_sent;
     636             :         struct spdk_nvmf_listen_opts    opts;
     637             : 
     638             :         /* Hole at bytes 705-711 */
     639             :         uint8_t reserved1[7];
     640             : 
     641             :         /* Additional options for listener creation.
     642             :          * Must be 8-byte aligned. */
     643             :         struct spdk_nvmf_listener_opts  listener_opts;
     644             : };
     645             : 
     646             : static const struct spdk_json_object_decoder nvmf_rpc_listener_decoder[] = {
     647             :         {"nqn", offsetof(struct nvmf_rpc_listener_ctx, nqn), spdk_json_decode_string},
     648             :         {"listen_address", offsetof(struct nvmf_rpc_listener_ctx, address), decode_rpc_listen_address},
     649             :         {"tgt_name", offsetof(struct nvmf_rpc_listener_ctx, tgt_name), spdk_json_decode_string, true},
     650             :         {"secure_channel", offsetof(struct nvmf_rpc_listener_ctx, listener_opts.secure_channel), spdk_json_decode_bool, true},
     651             :         {"ana_state", offsetof(struct nvmf_rpc_listener_ctx, ana_state_str), spdk_json_decode_string, true},
     652             :         {"sock_impl", offsetof(struct nvmf_rpc_listener_ctx, listener_opts.sock_impl), spdk_json_decode_string, true},
     653             : };
     654             : 
     655             : static void
     656           0 : nvmf_rpc_listener_ctx_free(struct nvmf_rpc_listener_ctx *ctx)
     657             : {
     658           0 :         free(ctx->nqn);
     659           0 :         free(ctx->tgt_name);
     660           0 :         free_rpc_listen_address(&ctx->address);
     661           0 :         free(ctx->ana_state_str);
     662           0 :         free(ctx);
     663           0 : }
     664             : 
     665             : static void
     666           0 : nvmf_rpc_listen_resumed(struct spdk_nvmf_subsystem *subsystem,
     667             :                         void *cb_arg, int status)
     668             : {
     669           0 :         struct nvmf_rpc_listener_ctx *ctx = cb_arg;
     670             :         struct spdk_jsonrpc_request *request;
     671             : 
     672           0 :         request = ctx->request;
     673           0 :         if (ctx->response_sent) {
     674             :                 /* If an error occurred, the response has already been sent. */
     675           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     676           0 :                 return;
     677             :         }
     678             : 
     679           0 :         nvmf_rpc_listener_ctx_free(ctx);
     680             : 
     681           0 :         spdk_jsonrpc_send_bool_response(request, true);
     682             : }
     683             : 
     684             : static void
     685           0 : nvmf_rpc_subsystem_listen(void *cb_arg, int status)
     686             : {
     687           0 :         struct nvmf_rpc_listener_ctx *ctx = cb_arg;
     688             : 
     689           0 :         if (status) {
     690             :                 /* Destroy the listener that we just created. Ignore the error code because
     691             :                  * the RPC is failing already anyway. */
     692           0 :                 spdk_nvmf_tgt_stop_listen(ctx->tgt, &ctx->trid);
     693             : 
     694           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     695             :                                                  "Invalid parameters");
     696           0 :                 ctx->response_sent = true;
     697             :         }
     698             : 
     699           0 :         if (spdk_nvmf_subsystem_resume(ctx->subsystem, nvmf_rpc_listen_resumed, ctx)) {
     700           0 :                 if (!ctx->response_sent) {
     701           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     702             :                                                          "Internal error");
     703             :                 }
     704           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     705             :                 /* Can't really do anything to recover here - subsystem will remain paused. */
     706             :         }
     707           0 : }
     708             : static void
     709           0 : nvmf_rpc_stop_listen_async_done(void *cb_arg, int status)
     710             : {
     711           0 :         struct nvmf_rpc_listener_ctx *ctx = cb_arg;
     712             : 
     713           0 :         if (status) {
     714           0 :                 SPDK_ERRLOG("Unable to stop listener.\n");
     715           0 :                 spdk_jsonrpc_send_error_response_fmt(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     716             :                                                      "error stopping listener: %d", status);
     717           0 :                 ctx->response_sent = true;
     718             :         }
     719             : 
     720           0 :         if (spdk_nvmf_subsystem_resume(ctx->subsystem, nvmf_rpc_listen_resumed, ctx)) {
     721           0 :                 if (!ctx->response_sent) {
     722           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     723             :                                                          "Internal error");
     724             :                 }
     725           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     726             :                 /* Can't really do anything to recover here - subsystem will remain paused. */
     727             :         }
     728           0 : }
     729             : 
     730             : static void
     731           0 : nvmf_rpc_set_ana_state_done(void *cb_arg, int status)
     732             : {
     733           0 :         struct nvmf_rpc_listener_ctx *ctx = cb_arg;
     734             : 
     735           0 :         if (status) {
     736           0 :                 SPDK_ERRLOG("Unable to set ANA state.\n");
     737           0 :                 spdk_jsonrpc_send_error_response_fmt(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     738             :                                                      "error setting ANA state: %d", status);
     739           0 :                 ctx->response_sent = true;
     740             :         }
     741             : 
     742           0 :         if (spdk_nvmf_subsystem_resume(ctx->subsystem, nvmf_rpc_listen_resumed, ctx)) {
     743           0 :                 if (!ctx->response_sent) {
     744           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     745             :                                                          "Internal error");
     746             :                 }
     747           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     748             :                 /* Can't really do anything to recover here - subsystem will remain paused. */
     749             :         }
     750           0 : }
     751             : 
     752             : static void
     753           0 : nvmf_rpc_listen_paused(struct spdk_nvmf_subsystem *subsystem,
     754             :                        void *cb_arg, int status)
     755             : {
     756           0 :         struct nvmf_rpc_listener_ctx *ctx = cb_arg;
     757             :         int rc;
     758             : 
     759           0 :         switch (ctx->op) {
     760           0 :         case NVMF_RPC_LISTEN_ADD:
     761           0 :                 if (nvmf_subsystem_find_listener(subsystem, &ctx->trid)) {
     762           0 :                         SPDK_ERRLOG("Listener already exists\n");
     763           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     764             :                                                          "Invalid parameters");
     765           0 :                         ctx->response_sent = true;
     766           0 :                         break;
     767             :                 }
     768             : 
     769           0 :                 rc = spdk_nvmf_tgt_listen_ext(ctx->tgt, &ctx->trid, &ctx->opts);
     770           0 :                 if (rc) {
     771           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     772             :                                                          "Invalid parameters");
     773           0 :                         ctx->response_sent = true;
     774           0 :                         break;
     775             :                 }
     776             : 
     777           0 :                 spdk_nvmf_subsystem_add_listener_ext(ctx->subsystem, &ctx->trid, nvmf_rpc_subsystem_listen, ctx,
     778             :                                                      &ctx->listener_opts);
     779           0 :                 return;
     780           0 :         case NVMF_RPC_LISTEN_REMOVE:
     781           0 :                 rc = spdk_nvmf_subsystem_remove_listener(subsystem, &ctx->trid);
     782           0 :                 if (rc) {
     783           0 :                         SPDK_ERRLOG("Unable to remove listener, rc %d\n", rc);
     784           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     785             :                                                          "Invalid parameters");
     786           0 :                         ctx->response_sent = true;
     787           0 :                         break;
     788             :                 }
     789             : 
     790           0 :                 spdk_nvmf_transport_stop_listen_async(ctx->transport, &ctx->trid, subsystem,
     791             :                                                       nvmf_rpc_stop_listen_async_done, ctx);
     792           0 :                 return;
     793           0 :         case NVMF_RPC_LISTEN_SET_ANA_STATE:
     794           0 :                 spdk_nvmf_subsystem_set_ana_state(subsystem, &ctx->trid, ctx->ana_state, ctx->anagrpid,
     795             :                                                   nvmf_rpc_set_ana_state_done, ctx);
     796           0 :                 return;
     797           0 :         default:
     798           0 :                 SPDK_UNREACHABLE();
     799             :         }
     800             : 
     801           0 :         if (spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_listen_resumed, ctx)) {
     802           0 :                 if (!ctx->response_sent) {
     803           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     804             :                                                          "Internal error");
     805             :                 }
     806             : 
     807           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     808             :                 /* Can't really do anything to recover here - subsystem will remain paused. */
     809             :         }
     810             : }
     811             : 
     812             : static int
     813           0 : rpc_listen_address_to_trid(const struct rpc_listen_address *address,
     814             :                            struct spdk_nvme_transport_id *trid)
     815             : {
     816             :         size_t len;
     817             : 
     818           0 :         memset(trid, 0, sizeof(*trid));
     819             : 
     820           0 :         if (spdk_nvme_transport_id_populate_trstring(trid, address->trtype)) {
     821           0 :                 SPDK_ERRLOG("Invalid trtype string: %s\n", address->trtype);
     822           0 :                 return -EINVAL;
     823             :         }
     824             : 
     825           0 :         if (spdk_nvme_transport_id_parse_trtype(&trid->trtype, address->trtype)) {
     826           0 :                 SPDK_ERRLOG("Invalid trtype type: %s\n", address->trtype);
     827           0 :                 return -EINVAL;
     828             :         }
     829             : 
     830           0 :         if (address->adrfam) {
     831           0 :                 if (spdk_nvme_transport_id_parse_adrfam(&trid->adrfam, address->adrfam)) {
     832           0 :                         SPDK_ERRLOG("Invalid adrfam: %s\n", address->adrfam);
     833           0 :                         return -EINVAL;
     834             :                 }
     835             :         } else {
     836           0 :                 trid->adrfam = SPDK_NVMF_ADRFAM_IPV4;
     837             :         }
     838             : 
     839           0 :         len = strlen(address->traddr);
     840           0 :         if (len > sizeof(trid->traddr) - 1) {
     841           0 :                 SPDK_ERRLOG("Transport address longer than %zu characters: %s\n",
     842             :                             sizeof(trid->traddr) - 1, address->traddr);
     843           0 :                 return -EINVAL;
     844             :         }
     845           0 :         memcpy(trid->traddr, address->traddr, len + 1);
     846             : 
     847           0 :         trid->trsvcid[0] = '\0';
     848           0 :         if (address->trsvcid) {
     849           0 :                 len = strlen(address->trsvcid);
     850           0 :                 if (len > sizeof(trid->trsvcid) - 1) {
     851           0 :                         SPDK_ERRLOG("Transport service id longer than %zu characters: %s\n",
     852             :                                     sizeof(trid->trsvcid) - 1, address->trsvcid);
     853           0 :                         return -EINVAL;
     854             :                 }
     855           0 :                 memcpy(trid->trsvcid, address->trsvcid, len + 1);
     856             :         }
     857             : 
     858           0 :         return 0;
     859             : }
     860             : 
     861             : static void
     862           0 : rpc_nvmf_subsystem_add_listener(struct spdk_jsonrpc_request *request,
     863             :                                 const struct spdk_json_val *params)
     864             : {
     865             :         struct nvmf_rpc_listener_ctx *ctx;
     866             :         struct spdk_nvmf_subsystem *subsystem;
     867             :         struct spdk_nvmf_tgt *tgt;
     868             :         int rc;
     869             : 
     870           0 :         ctx = calloc(1, sizeof(*ctx));
     871           0 :         if (!ctx) {
     872           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory");
     873           0 :                 return;
     874             :         }
     875             : 
     876           0 :         ctx->request = request;
     877             : 
     878           0 :         spdk_nvmf_subsystem_listener_opts_init(&ctx->listener_opts, sizeof(ctx->listener_opts));
     879             : 
     880           0 :         if (spdk_json_decode_object_relaxed(params, nvmf_rpc_listener_decoder,
     881             :                                             SPDK_COUNTOF(nvmf_rpc_listener_decoder),
     882             :                                             ctx)) {
     883           0 :                 SPDK_ERRLOG("spdk_json_decode_object_relaxed failed\n");
     884           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
     885           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     886           0 :                 return;
     887             :         }
     888             : 
     889           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
     890           0 :         if (!tgt) {
     891           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
     892           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     893             :                                                  "Unable to find a target.");
     894           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     895           0 :                 return;
     896             :         }
     897           0 :         ctx->tgt = tgt;
     898             : 
     899           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn);
     900           0 :         if (!subsystem) {
     901           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn);
     902           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
     903           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     904           0 :                 return;
     905             :         }
     906             : 
     907           0 :         ctx->subsystem = subsystem;
     908             : 
     909           0 :         if (rpc_listen_address_to_trid(&ctx->address, &ctx->trid)) {
     910           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     911             :                                                  "Invalid parameters");
     912           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     913           0 :                 return;
     914             :         }
     915             : 
     916           0 :         ctx->op = NVMF_RPC_LISTEN_ADD;
     917           0 :         spdk_nvmf_listen_opts_init(&ctx->opts, sizeof(ctx->opts));
     918           0 :         ctx->opts.transport_specific = params;
     919           0 :         if (spdk_nvmf_subsystem_get_allow_any_host(subsystem) && ctx->listener_opts.secure_channel) {
     920           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     921             :                                                  "Cannot establish secure channel, when 'allow_any_host' is set");
     922           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     923           0 :                 return;
     924             :         }
     925           0 :         ctx->opts.secure_channel = ctx->listener_opts.secure_channel;
     926             : 
     927           0 :         if (ctx->ana_state_str) {
     928           0 :                 if (rpc_ana_state_parse(ctx->ana_state_str, &ctx->ana_state)) {
     929           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     930             :                                                          "Invalid parameters");
     931           0 :                         nvmf_rpc_listener_ctx_free(ctx);
     932           0 :                         return;
     933             :                 }
     934           0 :                 ctx->listener_opts.ana_state = ctx->ana_state;
     935             :         }
     936             : 
     937           0 :         ctx->opts.sock_impl = ctx->listener_opts.sock_impl;
     938             : 
     939           0 :         rc = spdk_nvmf_subsystem_pause(subsystem, 0, nvmf_rpc_listen_paused, ctx);
     940           0 :         if (rc != 0) {
     941           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
     942           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     943             :         }
     944             : }
     945           0 : SPDK_RPC_REGISTER("nvmf_subsystem_add_listener", rpc_nvmf_subsystem_add_listener,
     946             :                   SPDK_RPC_RUNTIME);
     947             : 
     948             : static void
     949           0 : rpc_nvmf_subsystem_remove_listener(struct spdk_jsonrpc_request *request,
     950             :                                    const struct spdk_json_val *params)
     951             : {
     952             :         struct nvmf_rpc_listener_ctx *ctx;
     953             :         struct spdk_nvmf_subsystem *subsystem;
     954             :         struct spdk_nvmf_tgt *tgt;
     955             :         int rc;
     956             : 
     957           0 :         ctx = calloc(1, sizeof(*ctx));
     958           0 :         if (!ctx) {
     959           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory");
     960           0 :                 return;
     961             :         }
     962             : 
     963           0 :         ctx->request = request;
     964             : 
     965           0 :         if (spdk_json_decode_object(params, nvmf_rpc_listener_decoder,
     966             :                                     SPDK_COUNTOF(nvmf_rpc_listener_decoder),
     967             :                                     ctx)) {
     968           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
     969           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
     970           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     971           0 :                 return;
     972             :         }
     973             : 
     974           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
     975           0 :         if (!tgt) {
     976           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
     977           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
     978             :                                                  "Unable to find a target.");
     979           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     980           0 :                 return;
     981             :         }
     982           0 :         ctx->tgt = tgt;
     983             : 
     984           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn);
     985           0 :         if (!subsystem) {
     986           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn);
     987           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
     988           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     989           0 :                 return;
     990             :         }
     991             : 
     992           0 :         ctx->subsystem = subsystem;
     993             : 
     994           0 :         if (rpc_listen_address_to_trid(&ctx->address, &ctx->trid)) {
     995           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
     996             :                                                  "Invalid parameters");
     997           0 :                 nvmf_rpc_listener_ctx_free(ctx);
     998           0 :                 return;
     999             :         }
    1000             : 
    1001           0 :         ctx->transport = spdk_nvmf_tgt_get_transport(tgt, ctx->trid.trstring);
    1002           0 :         if (!ctx->transport) {
    1003           0 :                 SPDK_ERRLOG("Unable to find %s transport. The transport must be created first also make sure it is properly registered.\n",
    1004             :                             ctx->trid.trstring);
    1005           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1006             :                                                  "Invalid parameters");
    1007           0 :                 nvmf_rpc_listener_ctx_free(ctx);
    1008           0 :                 return;
    1009             :         }
    1010             : 
    1011           0 :         ctx->op = NVMF_RPC_LISTEN_REMOVE;
    1012             : 
    1013           0 :         rc = spdk_nvmf_subsystem_pause(subsystem, 0, nvmf_rpc_listen_paused, ctx);
    1014           0 :         if (rc != 0) {
    1015           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    1016           0 :                 nvmf_rpc_listener_ctx_free(ctx);
    1017             :         }
    1018             : }
    1019           0 : SPDK_RPC_REGISTER("nvmf_subsystem_remove_listener", rpc_nvmf_subsystem_remove_listener,
    1020             :                   SPDK_RPC_RUNTIME);
    1021             : 
    1022             : struct nvmf_rpc_referral_ctx {
    1023             :         char                            *tgt_name;
    1024             :         struct rpc_listen_address       address;
    1025             :         bool                            secure_channel;
    1026             :         char                            *subnqn;
    1027             : };
    1028             : 
    1029             : static const struct spdk_json_object_decoder nvmf_rpc_referral_decoder[] = {
    1030             :         {"address", offsetof(struct nvmf_rpc_referral_ctx, address), decode_rpc_listen_address},
    1031             :         {"tgt_name", offsetof(struct nvmf_rpc_referral_ctx, tgt_name), spdk_json_decode_string, true},
    1032             :         {"secure_channel", offsetof(struct nvmf_rpc_referral_ctx, secure_channel), spdk_json_decode_bool, true},
    1033             :         {"subnqn", offsetof(struct nvmf_rpc_referral_ctx, subnqn), spdk_json_decode_string, true},
    1034             : };
    1035             : 
    1036             : static void
    1037           0 : nvmf_rpc_referral_ctx_free(struct nvmf_rpc_referral_ctx *ctx)
    1038             : {
    1039           0 :         free(ctx->tgt_name);
    1040           0 :         free(ctx->subnqn);
    1041           0 :         free_rpc_listen_address(&ctx->address);
    1042           0 : }
    1043             : 
    1044             : static void
    1045           0 : rpc_nvmf_add_referral(struct spdk_jsonrpc_request *request,
    1046             :                       const struct spdk_json_val *params)
    1047             : {
    1048           0 :         struct nvmf_rpc_referral_ctx ctx = {};
    1049           0 :         struct spdk_nvme_transport_id trid = {};
    1050             :         struct spdk_nvmf_tgt *tgt;
    1051           0 :         struct spdk_nvmf_referral_opts opts = {};
    1052             :         int rc;
    1053             : 
    1054           0 :         if (spdk_json_decode_object_relaxed(params, nvmf_rpc_referral_decoder,
    1055             :                                             SPDK_COUNTOF(nvmf_rpc_referral_decoder),
    1056             :                                             &ctx)) {
    1057           0 :                 SPDK_ERRLOG("spdk_json_decode_object_relaxed failed\n");
    1058           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1059           0 :                 nvmf_rpc_referral_ctx_free(&ctx);
    1060           0 :                 return;
    1061             :         }
    1062             : 
    1063           0 :         tgt = spdk_nvmf_get_tgt(ctx.tgt_name);
    1064           0 :         if (!tgt) {
    1065           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    1066           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1067             :                                                  "Unable to find a target.");
    1068           0 :                 nvmf_rpc_referral_ctx_free(&ctx);
    1069           0 :                 return;
    1070             :         }
    1071             : 
    1072           0 :         if (rpc_listen_address_to_trid(&ctx.address, &trid)) {
    1073           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1074             :                                                  "Invalid parameters");
    1075           0 :                 nvmf_rpc_referral_ctx_free(&ctx);
    1076           0 :                 return;
    1077             :         }
    1078             : 
    1079           0 :         if (ctx.subnqn != NULL) {
    1080           0 :                 rc = snprintf(trid.subnqn, sizeof(trid.subnqn), "%s", ctx.subnqn);
    1081           0 :                 if (rc < 0 || (size_t)rc >= sizeof(trid.subnqn)) {
    1082           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1083             :                                                          "Invalid subsystem NQN");
    1084           0 :                         nvmf_rpc_referral_ctx_free(&ctx);
    1085           0 :                         return;
    1086             :                 }
    1087             :         }
    1088             : 
    1089           0 :         if ((trid.trtype == SPDK_NVME_TRANSPORT_TCP ||
    1090           0 :              trid.trtype == SPDK_NVME_TRANSPORT_RDMA) &&
    1091           0 :             !strlen(trid.trsvcid)) {
    1092           0 :                 SPDK_ERRLOG("Service ID is required.\n");
    1093           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1094             :                                                  "Service ID is required.");
    1095           0 :                 nvmf_rpc_referral_ctx_free(&ctx);
    1096           0 :                 return;
    1097             :         }
    1098             : 
    1099           0 :         opts.size = SPDK_SIZEOF(&opts, secure_channel);
    1100           0 :         opts.trid = trid;
    1101           0 :         opts.secure_channel = ctx.secure_channel;
    1102             : 
    1103           0 :         rc = spdk_nvmf_tgt_add_referral(tgt, &opts);
    1104           0 :         if (rc != 0) {
    1105           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1106             :                                                  "Internal error");
    1107           0 :                 nvmf_rpc_referral_ctx_free(&ctx);
    1108           0 :                 return;
    1109             :         }
    1110             : 
    1111           0 :         nvmf_rpc_referral_ctx_free(&ctx);
    1112             : 
    1113           0 :         spdk_jsonrpc_send_bool_response(request, true);
    1114             : }
    1115             : 
    1116           0 : SPDK_RPC_REGISTER("nvmf_discovery_add_referral", rpc_nvmf_add_referral,
    1117             :                   SPDK_RPC_RUNTIME);
    1118             : 
    1119             : static void
    1120           0 : rpc_nvmf_remove_referral(struct spdk_jsonrpc_request *request,
    1121             :                          const struct spdk_json_val *params)
    1122             : {
    1123           0 :         struct nvmf_rpc_referral_ctx ctx = {};
    1124           0 :         struct spdk_nvme_transport_id trid = {};
    1125           0 :         struct spdk_nvmf_referral_opts opts = {};
    1126             :         struct spdk_nvmf_tgt *tgt;
    1127             :         int rc;
    1128             : 
    1129           0 :         if (spdk_json_decode_object(params, nvmf_rpc_referral_decoder,
    1130             :                                     SPDK_COUNTOF(nvmf_rpc_referral_decoder),
    1131             :                                     &ctx)) {
    1132           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    1133           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1134           0 :                 nvmf_rpc_referral_ctx_free(&ctx);
    1135           0 :                 return;
    1136             :         }
    1137             : 
    1138           0 :         tgt = spdk_nvmf_get_tgt(ctx.tgt_name);
    1139           0 :         if (!tgt) {
    1140           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    1141           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1142             :                                                  "Unable to find a target.");
    1143           0 :                 nvmf_rpc_referral_ctx_free(&ctx);
    1144           0 :                 return;
    1145             :         }
    1146             : 
    1147           0 :         if (rpc_listen_address_to_trid(&ctx.address, &trid)) {
    1148           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1149             :                                                  "Invalid parameters");
    1150           0 :                 nvmf_rpc_referral_ctx_free(&ctx);
    1151           0 :                 return;
    1152             :         }
    1153             : 
    1154           0 :         if (ctx.subnqn != NULL) {
    1155           0 :                 rc = snprintf(trid.subnqn, sizeof(trid.subnqn), "%s", ctx.subnqn);
    1156           0 :                 if (rc < 0 || (size_t)rc >= sizeof(trid.subnqn)) {
    1157           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1158             :                                                          "Invalid subsystem NQN");
    1159           0 :                         nvmf_rpc_referral_ctx_free(&ctx);
    1160           0 :                         return;
    1161             :                 }
    1162             :         }
    1163             : 
    1164           0 :         opts.size = SPDK_SIZEOF(&opts, secure_channel);
    1165           0 :         opts.trid = trid;
    1166             : 
    1167           0 :         if (spdk_nvmf_tgt_remove_referral(tgt, &opts)) {
    1168           0 :                 SPDK_ERRLOG("Failed to remove referral.\n");
    1169           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1170             :                                                  "Unable to remove a referral.");
    1171           0 :                 nvmf_rpc_referral_ctx_free(&ctx);
    1172           0 :                 return;
    1173             :         }
    1174             : 
    1175           0 :         nvmf_rpc_referral_ctx_free(&ctx);
    1176             : 
    1177           0 :         spdk_jsonrpc_send_bool_response(request, true);
    1178             : }
    1179             : 
    1180           0 : SPDK_RPC_REGISTER("nvmf_discovery_remove_referral", rpc_nvmf_remove_referral,
    1181             :                   SPDK_RPC_RUNTIME);
    1182             : 
    1183             : static void
    1184           0 : dump_nvmf_referral(struct spdk_json_write_ctx *w,
    1185             :                    struct spdk_nvmf_referral *referral)
    1186             : {
    1187           0 :         spdk_json_write_object_begin(w);
    1188             : 
    1189           0 :         spdk_json_write_named_object_begin(w, "address");
    1190           0 :         nvmf_transport_listen_dump_trid(&referral->trid, w);
    1191           0 :         spdk_json_write_object_end(w);
    1192           0 :         spdk_json_write_named_bool(w, "secure_channel",
    1193           0 :                                    referral->entry.treq.secure_channel == SPDK_NVMF_TREQ_SECURE_CHANNEL_REQUIRED);
    1194           0 :         spdk_json_write_named_string(w, "subnqn", referral->trid.subnqn);
    1195             : 
    1196           0 :         spdk_json_write_object_end(w);
    1197           0 : }
    1198             : 
    1199             : struct rpc_get_referrals_ctx {
    1200             :         char *tgt_name;
    1201             : };
    1202             : 
    1203             : static const struct spdk_json_object_decoder rpc_get_referrals_decoders[] = {
    1204             :         {"tgt_name", offsetof(struct rpc_get_referrals_ctx, tgt_name), spdk_json_decode_string, true},
    1205             : };
    1206             : 
    1207             : static void
    1208           0 : free_rpc_get_referrals_ctx(struct rpc_get_referrals_ctx *ctx)
    1209             : {
    1210           0 :         free(ctx->tgt_name);
    1211           0 :         free(ctx);
    1212           0 : }
    1213             : 
    1214             : static void
    1215           0 : rpc_nvmf_get_referrals(struct spdk_jsonrpc_request *request,
    1216             :                        const struct spdk_json_val *params)
    1217             : {
    1218             :         struct rpc_get_referrals_ctx *ctx;
    1219             :         struct spdk_nvmf_tgt *tgt;
    1220             :         struct spdk_json_write_ctx *w;
    1221             :         struct spdk_nvmf_referral *referral;
    1222             : 
    1223           0 :         ctx = calloc(1, sizeof(*ctx));
    1224           0 :         if (!ctx) {
    1225           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1226             :                                                  "Out of memory");
    1227           0 :                 return;
    1228             :         }
    1229             : 
    1230           0 :         if (params) {
    1231           0 :                 if (spdk_json_decode_object(params, rpc_get_referrals_decoders,
    1232             :                                             SPDK_COUNTOF(rpc_get_referrals_decoders),
    1233             :                                             ctx)) {
    1234           0 :                         SPDK_ERRLOG("spdk_json_decode_object failed\n");
    1235           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1236             :                                                          "Invalid parameters");
    1237           0 :                         free_rpc_get_referrals_ctx(ctx);
    1238           0 :                         return;
    1239             :                 }
    1240             :         }
    1241             : 
    1242           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    1243           0 :         if (!tgt) {
    1244           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    1245           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1246             :                                                  "Unable to find a target");
    1247           0 :                 free_rpc_get_referrals_ctx(ctx);
    1248           0 :                 return;
    1249             :         }
    1250             : 
    1251           0 :         w = spdk_jsonrpc_begin_result(request);
    1252             : 
    1253           0 :         spdk_json_write_array_begin(w);
    1254             : 
    1255           0 :         TAILQ_FOREACH(referral, &tgt->referrals, link) {
    1256           0 :                 dump_nvmf_referral(w, referral);
    1257             :         }
    1258             : 
    1259           0 :         spdk_json_write_array_end(w);
    1260             : 
    1261           0 :         spdk_jsonrpc_end_result(request, w);
    1262             : 
    1263           0 :         free_rpc_get_referrals_ctx(ctx);
    1264             : }
    1265           0 : SPDK_RPC_REGISTER("nvmf_discovery_get_referrals", rpc_nvmf_get_referrals,
    1266             :                   SPDK_RPC_RUNTIME);
    1267             : 
    1268             : static const struct spdk_json_object_decoder nvmf_rpc_set_ana_state_decoder[] = {
    1269             :         {"nqn", offsetof(struct nvmf_rpc_listener_ctx, nqn), spdk_json_decode_string},
    1270             :         {"listen_address", offsetof(struct nvmf_rpc_listener_ctx, address), decode_rpc_listen_address},
    1271             :         {"ana_state", offsetof(struct nvmf_rpc_listener_ctx, ana_state_str), spdk_json_decode_string},
    1272             :         {"tgt_name", offsetof(struct nvmf_rpc_listener_ctx, tgt_name), spdk_json_decode_string, true},
    1273             :         {"anagrpid", offsetof(struct nvmf_rpc_listener_ctx, anagrpid), spdk_json_decode_uint32, true},
    1274             : };
    1275             : 
    1276             : static int
    1277           0 : rpc_ana_state_parse(const char *str, enum spdk_nvme_ana_state *ana_state)
    1278             : {
    1279           0 :         if (ana_state == NULL || str == NULL) {
    1280           0 :                 return -EINVAL;
    1281             :         }
    1282             : 
    1283           0 :         if (strcasecmp(str, "optimized") == 0) {
    1284           0 :                 *ana_state = SPDK_NVME_ANA_OPTIMIZED_STATE;
    1285           0 :         } else if (strcasecmp(str, "non_optimized") == 0) {
    1286           0 :                 *ana_state = SPDK_NVME_ANA_NON_OPTIMIZED_STATE;
    1287           0 :         } else if (strcasecmp(str, "inaccessible") == 0) {
    1288           0 :                 *ana_state = SPDK_NVME_ANA_INACCESSIBLE_STATE;
    1289             :         } else {
    1290           0 :                 return -ENOENT;
    1291             :         }
    1292             : 
    1293           0 :         return 0;
    1294             : }
    1295             : 
    1296             : static void
    1297           0 : rpc_nvmf_subsystem_listener_set_ana_state(struct spdk_jsonrpc_request *request,
    1298             :                 const struct spdk_json_val *params)
    1299             : {
    1300             :         struct nvmf_rpc_listener_ctx *ctx;
    1301             :         struct spdk_nvmf_subsystem *subsystem;
    1302             :         struct spdk_nvmf_tgt *tgt;
    1303             : 
    1304           0 :         ctx = calloc(1, sizeof(*ctx));
    1305           0 :         if (!ctx) {
    1306           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1307             :                                                  "Out of memory");
    1308           0 :                 return;
    1309             :         }
    1310             : 
    1311           0 :         ctx->request = request;
    1312             : 
    1313           0 :         if (spdk_json_decode_object(params, nvmf_rpc_set_ana_state_decoder,
    1314             :                                     SPDK_COUNTOF(nvmf_rpc_set_ana_state_decoder),
    1315             :                                     ctx)) {
    1316           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    1317           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1318             :                                                  "Invalid parameters");
    1319           0 :                 nvmf_rpc_listener_ctx_free(ctx);
    1320           0 :                 return;
    1321             :         }
    1322             : 
    1323           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    1324           0 :         if (!tgt) {
    1325           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    1326           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1327             :                                                  "Unable to find a target.");
    1328           0 :                 nvmf_rpc_listener_ctx_free(ctx);
    1329           0 :                 return;
    1330             :         }
    1331             : 
    1332           0 :         ctx->tgt = tgt;
    1333             : 
    1334           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn);
    1335           0 :         if (!subsystem) {
    1336           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn);
    1337           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1338             :                                                      "Unable to find subsystem with NQN %s",
    1339             :                                                      ctx->nqn);
    1340           0 :                 nvmf_rpc_listener_ctx_free(ctx);
    1341           0 :                 return;
    1342             :         }
    1343             : 
    1344           0 :         ctx->subsystem = subsystem;
    1345             : 
    1346           0 :         if (rpc_listen_address_to_trid(&ctx->address, &ctx->trid)) {
    1347           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1348             :                                                  "Invalid parameters");
    1349           0 :                 nvmf_rpc_listener_ctx_free(ctx);
    1350           0 :                 return;
    1351             :         }
    1352             : 
    1353           0 :         if (rpc_ana_state_parse(ctx->ana_state_str, &ctx->ana_state)) {
    1354           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1355             :                                                  "Invalid parameters");
    1356           0 :                 nvmf_rpc_listener_ctx_free(ctx);
    1357           0 :                 return;
    1358             :         }
    1359             : 
    1360           0 :         ctx->op = NVMF_RPC_LISTEN_SET_ANA_STATE;
    1361             : 
    1362           0 :         if (spdk_nvmf_subsystem_pause(subsystem, 0, nvmf_rpc_listen_paused, ctx)) {
    1363           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1364             :                                                  "Internal error");
    1365           0 :                 nvmf_rpc_listener_ctx_free(ctx);
    1366             :         }
    1367             : }
    1368           0 : SPDK_RPC_REGISTER("nvmf_subsystem_listener_set_ana_state",
    1369             :                   rpc_nvmf_subsystem_listener_set_ana_state, SPDK_RPC_RUNTIME);
    1370             : 
    1371             : struct nvmf_rpc_ns_params {
    1372             :         char *bdev_name;
    1373             :         char *ptpl_file;
    1374             :         uint32_t nsid;
    1375             :         char nguid[16];
    1376             :         char eui64[8];
    1377             :         struct spdk_uuid uuid;
    1378             :         uint32_t anagrpid;
    1379             :         bool no_auto_visible;
    1380             :         bool hide_metadata;
    1381             : };
    1382             : 
    1383             : static const struct spdk_json_object_decoder rpc_ns_params_decoders[] = {
    1384             :         {"nsid", offsetof(struct nvmf_rpc_ns_params, nsid), spdk_json_decode_uint32, true},
    1385             :         {"bdev_name", offsetof(struct nvmf_rpc_ns_params, bdev_name), spdk_json_decode_string},
    1386             :         {"ptpl_file", offsetof(struct nvmf_rpc_ns_params, ptpl_file), spdk_json_decode_string, true},
    1387             :         {"nguid", offsetof(struct nvmf_rpc_ns_params, nguid), decode_ns_nguid, true},
    1388             :         {"eui64", offsetof(struct nvmf_rpc_ns_params, eui64), decode_ns_eui64, true},
    1389             :         {"uuid", offsetof(struct nvmf_rpc_ns_params, uuid), spdk_json_decode_uuid, true},
    1390             :         {"anagrpid", offsetof(struct nvmf_rpc_ns_params, anagrpid), spdk_json_decode_uint32, true},
    1391             :         {"no_auto_visible", offsetof(struct nvmf_rpc_ns_params, no_auto_visible), spdk_json_decode_bool, true},
    1392             :         {"hide_metadata", offsetof(struct nvmf_rpc_ns_params, hide_metadata), spdk_json_decode_bool, true},
    1393             : };
    1394             : 
    1395             : static int
    1396           0 : decode_rpc_ns_params(const struct spdk_json_val *val, void *out)
    1397             : {
    1398           0 :         struct nvmf_rpc_ns_params *ns_params = out;
    1399             : 
    1400           0 :         return spdk_json_decode_object(val, rpc_ns_params_decoders,
    1401             :                                        SPDK_COUNTOF(rpc_ns_params_decoders),
    1402             :                                        ns_params);
    1403             : }
    1404             : 
    1405             : struct nvmf_rpc_ns_ctx {
    1406             :         char *nqn;
    1407             :         char *tgt_name;
    1408             :         struct nvmf_rpc_ns_params ns_params;
    1409             : 
    1410             :         struct spdk_jsonrpc_request *request;
    1411             :         const struct spdk_json_val *params;
    1412             :         bool response_sent;
    1413             : };
    1414             : 
    1415             : static const struct spdk_json_object_decoder nvmf_rpc_subsystem_ns_decoder[] = {
    1416             :         {"nqn", offsetof(struct nvmf_rpc_ns_ctx, nqn), spdk_json_decode_string},
    1417             :         {"namespace", offsetof(struct nvmf_rpc_ns_ctx, ns_params), decode_rpc_ns_params},
    1418             :         {"tgt_name", offsetof(struct nvmf_rpc_ns_ctx, tgt_name), spdk_json_decode_string, true},
    1419             : };
    1420             : 
    1421             : static void
    1422           0 : nvmf_rpc_ns_ctx_free(struct nvmf_rpc_ns_ctx *ctx)
    1423             : {
    1424           0 :         free(ctx->nqn);
    1425           0 :         free(ctx->tgt_name);
    1426           0 :         free(ctx->ns_params.bdev_name);
    1427           0 :         free(ctx->ns_params.ptpl_file);
    1428           0 :         free(ctx);
    1429           0 : }
    1430             : 
    1431             : static void
    1432           0 : nvmf_rpc_ns_failback_resumed(struct spdk_nvmf_subsystem *subsystem,
    1433             :                              void *cb_arg, int status)
    1434             : {
    1435           0 :         struct nvmf_rpc_ns_ctx *ctx = cb_arg;
    1436           0 :         struct spdk_jsonrpc_request *request = ctx->request;
    1437             : 
    1438           0 :         if (status) {
    1439           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1440             :                                                  "Unable to add ns, subsystem in invalid state");
    1441             :         } else {
    1442           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1443             :                                                  "Unable to add ns, subsystem in active state");
    1444             :         }
    1445             : 
    1446           0 :         nvmf_rpc_ns_ctx_free(ctx);
    1447           0 : }
    1448             : 
    1449             : static void
    1450           0 : nvmf_rpc_ns_resumed(struct spdk_nvmf_subsystem *subsystem,
    1451             :                     void *cb_arg, int status)
    1452             : {
    1453           0 :         struct nvmf_rpc_ns_ctx *ctx = cb_arg;
    1454           0 :         struct spdk_jsonrpc_request *request = ctx->request;
    1455           0 :         uint32_t nsid = ctx->ns_params.nsid;
    1456           0 :         bool response_sent = ctx->response_sent;
    1457             :         struct spdk_json_write_ctx *w;
    1458             :         int rc;
    1459             : 
    1460             :         /* The case where the call to add the namespace was successful, but the subsystem couldn't be resumed. */
    1461           0 :         if (status && !ctx->response_sent) {
    1462           0 :                 rc = spdk_nvmf_subsystem_remove_ns(subsystem, nsid);
    1463           0 :                 if (rc != 0) {
    1464           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1465             :                                                          "Unable to add ns, subsystem in invalid state");
    1466           0 :                         nvmf_rpc_ns_ctx_free(ctx);
    1467           0 :                         return;
    1468             :                 }
    1469             : 
    1470           0 :                 rc = spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_ns_failback_resumed, ctx);
    1471           0 :                 if (rc != 0) {
    1472           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    1473           0 :                         nvmf_rpc_ns_ctx_free(ctx);
    1474           0 :                         return;
    1475             :                 }
    1476             : 
    1477           0 :                 return;
    1478             :         }
    1479             : 
    1480           0 :         nvmf_rpc_ns_ctx_free(ctx);
    1481             : 
    1482           0 :         if (response_sent) {
    1483           0 :                 return;
    1484             :         }
    1485             : 
    1486           0 :         w = spdk_jsonrpc_begin_result(request);
    1487           0 :         spdk_json_write_uint32(w, nsid);
    1488           0 :         spdk_jsonrpc_end_result(request, w);
    1489             : }
    1490             : 
    1491             : static void
    1492           0 : nvmf_rpc_ns_paused(struct spdk_nvmf_subsystem *subsystem,
    1493             :                    void *cb_arg, int status)
    1494             : {
    1495           0 :         struct nvmf_rpc_ns_ctx *ctx = cb_arg;
    1496           0 :         struct spdk_nvmf_ns_opts ns_opts;
    1497             : 
    1498           0 :         spdk_nvmf_ns_opts_get_defaults(&ns_opts, sizeof(ns_opts));
    1499           0 :         ns_opts.nsid = ctx->ns_params.nsid;
    1500           0 :         ns_opts.transport_specific = ctx->params;
    1501             : 
    1502             :         SPDK_STATIC_ASSERT(sizeof(ns_opts.nguid) == sizeof(ctx->ns_params.nguid), "size mismatch");
    1503           0 :         memcpy(ns_opts.nguid, ctx->ns_params.nguid, sizeof(ns_opts.nguid));
    1504             : 
    1505             :         SPDK_STATIC_ASSERT(sizeof(ns_opts.eui64) == sizeof(ctx->ns_params.eui64), "size mismatch");
    1506           0 :         memcpy(ns_opts.eui64, ctx->ns_params.eui64, sizeof(ns_opts.eui64));
    1507             : 
    1508           0 :         if (!spdk_uuid_is_null(&ctx->ns_params.uuid)) {
    1509           0 :                 ns_opts.uuid = ctx->ns_params.uuid;
    1510             :         }
    1511             : 
    1512           0 :         ns_opts.anagrpid = ctx->ns_params.anagrpid;
    1513           0 :         ns_opts.no_auto_visible = ctx->ns_params.no_auto_visible;
    1514           0 :         ns_opts.hide_metadata = ctx->ns_params.hide_metadata;
    1515             : 
    1516           0 :         ctx->ns_params.nsid = spdk_nvmf_subsystem_add_ns_ext(subsystem, ctx->ns_params.bdev_name,
    1517             :                               &ns_opts, sizeof(ns_opts),
    1518           0 :                               ctx->ns_params.ptpl_file);
    1519           0 :         if (ctx->ns_params.nsid == 0) {
    1520           0 :                 SPDK_ERRLOG("Unable to add namespace\n");
    1521           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1522             :                                                  "Invalid parameters");
    1523           0 :                 ctx->response_sent = true;
    1524           0 :                 goto resume;
    1525             :         }
    1526             : 
    1527           0 : resume:
    1528           0 :         if (spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_ns_resumed, ctx)) {
    1529           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    1530           0 :                 nvmf_rpc_ns_ctx_free(ctx);
    1531             :         }
    1532           0 : }
    1533             : 
    1534             : static void
    1535           0 : rpc_nvmf_subsystem_add_ns(struct spdk_jsonrpc_request *request,
    1536             :                           const struct spdk_json_val *params)
    1537             : {
    1538             :         struct nvmf_rpc_ns_ctx *ctx;
    1539             :         struct spdk_nvmf_subsystem *subsystem;
    1540             :         struct spdk_nvmf_tgt *tgt;
    1541             :         int rc;
    1542             : 
    1543           0 :         ctx = calloc(1, sizeof(*ctx));
    1544           0 :         if (!ctx) {
    1545           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory");
    1546           0 :                 return;
    1547             :         }
    1548             : 
    1549           0 :         if (spdk_json_decode_object_relaxed(params, nvmf_rpc_subsystem_ns_decoder,
    1550             :                                             SPDK_COUNTOF(nvmf_rpc_subsystem_ns_decoder), ctx)) {
    1551           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    1552           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1553           0 :                 nvmf_rpc_ns_ctx_free(ctx);
    1554           0 :                 return;
    1555             :         }
    1556             : 
    1557           0 :         ctx->request = request;
    1558           0 :         ctx->params = params;
    1559           0 :         ctx->response_sent = false;
    1560             : 
    1561           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    1562           0 :         if (!tgt) {
    1563           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    1564           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1565             :                                                  "Unable to find a target.");
    1566           0 :                 nvmf_rpc_ns_ctx_free(ctx);
    1567           0 :                 return;
    1568             :         }
    1569             : 
    1570           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn);
    1571           0 :         if (!subsystem) {
    1572           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn);
    1573           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1574           0 :                 nvmf_rpc_ns_ctx_free(ctx);
    1575           0 :                 return;
    1576             :         }
    1577             : 
    1578           0 :         rc = spdk_nvmf_subsystem_pause(subsystem, ctx->ns_params.nsid, nvmf_rpc_ns_paused, ctx);
    1579           0 :         if (rc != 0) {
    1580           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    1581           0 :                 nvmf_rpc_ns_ctx_free(ctx);
    1582             :         }
    1583             : }
    1584           0 : SPDK_RPC_REGISTER("nvmf_subsystem_add_ns", rpc_nvmf_subsystem_add_ns, SPDK_RPC_RUNTIME)
    1585             : 
    1586             : struct nvmf_rpc_ana_group_ctx {
    1587             :         char *nqn;
    1588             :         char *tgt_name;
    1589             :         uint32_t nsid;
    1590             :         uint32_t anagrpid;
    1591             : 
    1592             :         struct spdk_jsonrpc_request *request;
    1593             :         bool response_sent;
    1594             : };
    1595             : 
    1596             : static const struct spdk_json_object_decoder nvmf_rpc_subsystem_ana_group_decoder[] = {
    1597             :         {"nqn", offsetof(struct nvmf_rpc_ana_group_ctx, nqn), spdk_json_decode_string},
    1598             :         {"nsid", offsetof(struct nvmf_rpc_ana_group_ctx, nsid), spdk_json_decode_uint32},
    1599             :         {"anagrpid", offsetof(struct nvmf_rpc_ana_group_ctx, anagrpid), spdk_json_decode_uint32},
    1600             :         {"tgt_name", offsetof(struct nvmf_rpc_ana_group_ctx, tgt_name), spdk_json_decode_string, true},
    1601             : };
    1602             : 
    1603             : static void
    1604           0 : nvmf_rpc_ana_group_ctx_free(struct nvmf_rpc_ana_group_ctx *ctx)
    1605             : {
    1606           0 :         free(ctx->nqn);
    1607           0 :         free(ctx->tgt_name);
    1608           0 :         free(ctx);
    1609           0 : }
    1610             : 
    1611             : static void
    1612           0 : nvmf_rpc_anagrpid_resumed(struct spdk_nvmf_subsystem *subsystem,
    1613             :                           void *cb_arg, int status)
    1614             : {
    1615           0 :         struct nvmf_rpc_ana_group_ctx *ctx = cb_arg;
    1616           0 :         struct spdk_jsonrpc_request *request = ctx->request;
    1617           0 :         bool response_sent = ctx->response_sent;
    1618             : 
    1619           0 :         nvmf_rpc_ana_group_ctx_free(ctx);
    1620             : 
    1621           0 :         if (response_sent) {
    1622           0 :                 return;
    1623             :         }
    1624             : 
    1625           0 :         spdk_jsonrpc_send_bool_response(request, true);
    1626             : }
    1627             : 
    1628             : static void
    1629           0 : nvmf_rpc_ana_group(struct spdk_nvmf_subsystem *subsystem,
    1630             :                    void *cb_arg, int status)
    1631             : {
    1632           0 :         struct nvmf_rpc_ana_group_ctx *ctx = cb_arg;
    1633             :         int rc;
    1634             : 
    1635           0 :         rc = spdk_nvmf_subsystem_set_ns_ana_group(subsystem, ctx->nsid, ctx->anagrpid);
    1636           0 :         if (rc != 0) {
    1637           0 :                 SPDK_ERRLOG("Unable to change ANA group ID\n");
    1638           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1639             :                                                  "Invalid parameters");
    1640           0 :                 ctx->response_sent = true;
    1641             :         }
    1642             : 
    1643           0 :         if (spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_anagrpid_resumed, ctx)) {
    1644           0 :                 if (!ctx->response_sent) {
    1645           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1646             :                                                          "Internal error");
    1647             :                 }
    1648           0 :                 nvmf_rpc_ana_group_ctx_free(ctx);
    1649             :         }
    1650           0 : }
    1651             : 
    1652             : static void
    1653           0 : rpc_nvmf_subsystem_set_ns_ana_group(struct spdk_jsonrpc_request *request,
    1654             :                                     const struct spdk_json_val *params)
    1655             : {
    1656             :         struct nvmf_rpc_ana_group_ctx *ctx;
    1657             :         struct spdk_nvmf_subsystem *subsystem;
    1658             :         struct spdk_nvmf_tgt *tgt;
    1659             :         int rc;
    1660             : 
    1661           0 :         ctx = calloc(1, sizeof(*ctx));
    1662           0 :         if (!ctx) {
    1663           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory");
    1664           0 :                 return;
    1665             :         }
    1666             : 
    1667           0 :         if (spdk_json_decode_object(params, nvmf_rpc_subsystem_ana_group_decoder,
    1668             :                                     SPDK_COUNTOF(nvmf_rpc_subsystem_ana_group_decoder), ctx)) {
    1669           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    1670           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1671           0 :                 nvmf_rpc_ana_group_ctx_free(ctx);
    1672           0 :                 return;
    1673             :         }
    1674             : 
    1675           0 :         ctx->request = request;
    1676           0 :         ctx->response_sent = false;
    1677             : 
    1678           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    1679           0 :         if (!tgt) {
    1680           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    1681           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1682             :                                                  "Unable to find a target.");
    1683           0 :                 nvmf_rpc_ana_group_ctx_free(ctx);
    1684           0 :                 return;
    1685             :         }
    1686             : 
    1687           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn);
    1688           0 :         if (!subsystem) {
    1689           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn);
    1690           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1691           0 :                 nvmf_rpc_ana_group_ctx_free(ctx);
    1692           0 :                 return;
    1693             :         }
    1694             : 
    1695           0 :         rc = spdk_nvmf_subsystem_pause(subsystem, ctx->nsid, nvmf_rpc_ana_group, ctx);
    1696           0 :         if (rc != 0) {
    1697           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    1698           0 :                 nvmf_rpc_ana_group_ctx_free(ctx);
    1699             :         }
    1700             : }
    1701           0 : SPDK_RPC_REGISTER("nvmf_subsystem_set_ns_ana_group", rpc_nvmf_subsystem_set_ns_ana_group,
    1702             :                   SPDK_RPC_RUNTIME)
    1703             : 
    1704             : struct nvmf_rpc_remove_ns_ctx {
    1705             :         char *nqn;
    1706             :         char *tgt_name;
    1707             :         uint32_t nsid;
    1708             : 
    1709             :         struct spdk_jsonrpc_request *request;
    1710             :         bool response_sent;
    1711             : };
    1712             : 
    1713             : static const struct spdk_json_object_decoder nvmf_rpc_subsystem_remove_ns_decoder[] = {
    1714             :         {"nqn", offsetof(struct nvmf_rpc_remove_ns_ctx, nqn), spdk_json_decode_string},
    1715             :         {"nsid", offsetof(struct nvmf_rpc_remove_ns_ctx, nsid), spdk_json_decode_uint32},
    1716             :         {"tgt_name", offsetof(struct nvmf_rpc_remove_ns_ctx, tgt_name), spdk_json_decode_string, true},
    1717             : };
    1718             : 
    1719             : static void
    1720           0 : nvmf_rpc_remove_ns_ctx_free(struct nvmf_rpc_remove_ns_ctx *ctx)
    1721             : {
    1722           0 :         free(ctx->nqn);
    1723           0 :         free(ctx->tgt_name);
    1724           0 :         free(ctx);
    1725           0 : }
    1726             : 
    1727             : static void
    1728           0 : nvmf_rpc_remove_ns_resumed(struct spdk_nvmf_subsystem *subsystem,
    1729             :                            void *cb_arg, int status)
    1730             : {
    1731           0 :         struct nvmf_rpc_remove_ns_ctx *ctx = cb_arg;
    1732           0 :         struct spdk_jsonrpc_request *request = ctx->request;
    1733           0 :         bool response_sent = ctx->response_sent;
    1734             : 
    1735           0 :         nvmf_rpc_remove_ns_ctx_free(ctx);
    1736             : 
    1737           0 :         if (response_sent) {
    1738           0 :                 return;
    1739             :         }
    1740             : 
    1741           0 :         spdk_jsonrpc_send_bool_response(request, true);
    1742             : }
    1743             : 
    1744             : static void
    1745           0 : nvmf_rpc_remove_ns_paused(struct spdk_nvmf_subsystem *subsystem,
    1746             :                           void *cb_arg, int status)
    1747             : {
    1748           0 :         struct nvmf_rpc_remove_ns_ctx *ctx = cb_arg;
    1749             :         int ret;
    1750             : 
    1751           0 :         ret = spdk_nvmf_subsystem_remove_ns(subsystem, ctx->nsid);
    1752           0 :         if (ret < 0) {
    1753           0 :                 SPDK_ERRLOG("Unable to remove namespace ID %u\n", ctx->nsid);
    1754           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1755             :                                                  "Invalid parameters");
    1756           0 :                 ctx->response_sent = true;
    1757             :         }
    1758             : 
    1759           0 :         if (spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_remove_ns_resumed, ctx)) {
    1760           0 :                 if (!ctx->response_sent) {
    1761           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    1762             :                 }
    1763           0 :                 nvmf_rpc_remove_ns_ctx_free(ctx);
    1764             :         }
    1765           0 : }
    1766             : 
    1767             : static void
    1768           0 : rpc_nvmf_subsystem_remove_ns(struct spdk_jsonrpc_request *request,
    1769             :                              const struct spdk_json_val *params)
    1770             : {
    1771             :         struct nvmf_rpc_remove_ns_ctx *ctx;
    1772             :         struct spdk_nvmf_subsystem *subsystem;
    1773             :         struct spdk_nvmf_tgt *tgt;
    1774             :         int rc;
    1775             : 
    1776           0 :         ctx = calloc(1, sizeof(*ctx));
    1777           0 :         if (!ctx) {
    1778           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory");
    1779           0 :                 return;
    1780             :         }
    1781             : 
    1782           0 :         if (spdk_json_decode_object(params, nvmf_rpc_subsystem_remove_ns_decoder,
    1783             :                                     SPDK_COUNTOF(nvmf_rpc_subsystem_remove_ns_decoder),
    1784             :                                     ctx)) {
    1785           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    1786           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1787           0 :                 nvmf_rpc_remove_ns_ctx_free(ctx);
    1788           0 :                 return;
    1789             :         }
    1790             : 
    1791           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    1792           0 :         if (!tgt) {
    1793           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    1794           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1795             :                                                  "Unable to find a target.");
    1796           0 :                 nvmf_rpc_remove_ns_ctx_free(ctx);
    1797           0 :                 return;
    1798             :         }
    1799             : 
    1800           0 :         ctx->request = request;
    1801           0 :         ctx->response_sent = false;
    1802             : 
    1803           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn);
    1804           0 :         if (!subsystem) {
    1805           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn);
    1806           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1807           0 :                 nvmf_rpc_remove_ns_ctx_free(ctx);
    1808           0 :                 return;
    1809             :         }
    1810             : 
    1811           0 :         rc = spdk_nvmf_subsystem_pause(subsystem, ctx->nsid, nvmf_rpc_remove_ns_paused, ctx);
    1812           0 :         if (rc != 0) {
    1813           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    1814           0 :                 nvmf_rpc_remove_ns_ctx_free(ctx);
    1815             :         }
    1816             : }
    1817           0 : SPDK_RPC_REGISTER("nvmf_subsystem_remove_ns", rpc_nvmf_subsystem_remove_ns, SPDK_RPC_RUNTIME)
    1818             : 
    1819             : struct nvmf_rpc_ns_visible_ctx {
    1820             :         struct spdk_jsonrpc_request *request;
    1821             :         char *nqn;
    1822             :         uint32_t nsid;
    1823             :         char *host;
    1824             :         char *tgt_name;
    1825             :         bool visible;
    1826             :         bool response_sent;
    1827             : };
    1828             : 
    1829             : static const struct spdk_json_object_decoder nvmf_rpc_ns_visible_decoder[] = {
    1830             :         {"nqn", offsetof(struct nvmf_rpc_ns_visible_ctx, nqn), spdk_json_decode_string},
    1831             :         {"nsid", offsetof(struct nvmf_rpc_ns_visible_ctx, nsid), spdk_json_decode_uint32},
    1832             :         {"host", offsetof(struct nvmf_rpc_ns_visible_ctx, host), spdk_json_decode_string},
    1833             :         {"tgt_name", offsetof(struct nvmf_rpc_ns_visible_ctx, tgt_name), spdk_json_decode_string, true},
    1834             : };
    1835             : 
    1836             : static void
    1837           0 : nvmf_rpc_ns_visible_ctx_free(struct nvmf_rpc_ns_visible_ctx *ctx)
    1838             : {
    1839           0 :         free(ctx->nqn);
    1840           0 :         free(ctx->host);
    1841           0 :         free(ctx->tgt_name);
    1842           0 :         free(ctx);
    1843           0 : }
    1844             : 
    1845             : static void
    1846           0 : nvmf_rpc_ns_visible_resumed(struct spdk_nvmf_subsystem *subsystem,
    1847             :                             void *cb_arg, int status)
    1848             : {
    1849           0 :         struct nvmf_rpc_ns_visible_ctx *ctx = cb_arg;
    1850           0 :         struct spdk_jsonrpc_request *request = ctx->request;
    1851           0 :         bool response_sent = ctx->response_sent;
    1852             : 
    1853           0 :         nvmf_rpc_ns_visible_ctx_free(ctx);
    1854             : 
    1855           0 :         if (!response_sent) {
    1856           0 :                 spdk_jsonrpc_send_bool_response(request, true);
    1857             :         }
    1858           0 : }
    1859             : 
    1860             : static void
    1861           0 : nvmf_rpc_ns_visible_paused(struct spdk_nvmf_subsystem *subsystem,
    1862             :                            void *cb_arg, int status)
    1863             : {
    1864           0 :         struct nvmf_rpc_ns_visible_ctx *ctx = cb_arg;
    1865             :         int ret;
    1866             : 
    1867           0 :         if (ctx->visible) {
    1868           0 :                 ret = spdk_nvmf_ns_add_host(subsystem, ctx->nsid, ctx->host, 0);
    1869             :         } else {
    1870           0 :                 ret = spdk_nvmf_ns_remove_host(subsystem, ctx->nsid, ctx->host, 0);
    1871             :         }
    1872           0 :         if (ret < 0) {
    1873           0 :                 SPDK_ERRLOG("Unable to add/remove %s to namespace ID %u\n", ctx->host, ctx->nsid);
    1874           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    1875             :                                                  "Invalid parameters");
    1876           0 :                 ctx->response_sent = true;
    1877             :         }
    1878             : 
    1879           0 :         if (spdk_nvmf_subsystem_resume(subsystem, nvmf_rpc_ns_visible_resumed, ctx)) {
    1880           0 :                 if (!ctx->response_sent) {
    1881           0 :                         spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    1882             :                 }
    1883           0 :                 nvmf_rpc_ns_visible_ctx_free(ctx);
    1884             :         }
    1885           0 : }
    1886             : 
    1887             : static void
    1888           0 : nvmf_rpc_ns_visible(struct spdk_jsonrpc_request *request,
    1889             :                     const struct spdk_json_val *params,
    1890             :                     bool visible)
    1891             : {
    1892             :         struct nvmf_rpc_ns_visible_ctx *ctx;
    1893             :         struct spdk_nvmf_subsystem *subsystem;
    1894             :         struct spdk_nvmf_tgt *tgt;
    1895             :         int rc;
    1896             : 
    1897           0 :         ctx = calloc(1, sizeof(*ctx));
    1898           0 :         if (!ctx) {
    1899           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory");
    1900           0 :                 return;
    1901             :         }
    1902           0 :         ctx->visible = visible;
    1903             : 
    1904           0 :         if (spdk_json_decode_object(params, nvmf_rpc_ns_visible_decoder,
    1905             :                                     SPDK_COUNTOF(nvmf_rpc_ns_visible_decoder),
    1906             :                                     ctx)) {
    1907           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    1908           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1909           0 :                 nvmf_rpc_ns_visible_ctx_free(ctx);
    1910           0 :                 return;
    1911             :         }
    1912           0 :         ctx->request = request;
    1913             : 
    1914           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    1915           0 :         if (!tgt) {
    1916           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    1917           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    1918             :                                                  "Unable to find a target.");
    1919           0 :                 nvmf_rpc_ns_visible_ctx_free(ctx);
    1920           0 :                 return;
    1921             :         }
    1922             : 
    1923           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn);
    1924           0 :         if (!subsystem) {
    1925           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn);
    1926           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1927           0 :                 nvmf_rpc_ns_visible_ctx_free(ctx);
    1928           0 :                 return;
    1929             :         }
    1930             : 
    1931           0 :         rc = spdk_nvmf_subsystem_pause(subsystem, ctx->nsid, nvmf_rpc_ns_visible_paused, ctx);
    1932           0 :         if (rc != 0) {
    1933           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    1934           0 :                 nvmf_rpc_ns_visible_ctx_free(ctx);
    1935             :         }
    1936             : }
    1937             : 
    1938             : static void
    1939           0 : rpc_nvmf_ns_add_host(struct spdk_jsonrpc_request *request,
    1940             :                      const struct spdk_json_val *params)
    1941             : {
    1942           0 :         nvmf_rpc_ns_visible(request, params, true);
    1943           0 : }
    1944           0 : SPDK_RPC_REGISTER("nvmf_ns_add_host", rpc_nvmf_ns_add_host, SPDK_RPC_RUNTIME)
    1945             : 
    1946             : static void
    1947           0 : rpc_nvmf_ns_remove_host(struct spdk_jsonrpc_request *request,
    1948             :                         const struct spdk_json_val *params)
    1949             : {
    1950           0 :         nvmf_rpc_ns_visible(request, params, false);
    1951           0 : }
    1952           0 : SPDK_RPC_REGISTER("nvmf_ns_remove_host", rpc_nvmf_ns_remove_host, SPDK_RPC_RUNTIME)
    1953             : 
    1954             : struct nvmf_rpc_host_ctx {
    1955             :         struct spdk_jsonrpc_request *request;
    1956             :         char *nqn;
    1957             :         char *host;
    1958             :         char *tgt_name;
    1959             :         char *dhchap_key;
    1960             :         char *dhchap_ctrlr_key;
    1961             :         bool allow_any_host;
    1962             : };
    1963             : 
    1964             : static const struct spdk_json_object_decoder nvmf_rpc_subsystem_host_decoder[] = {
    1965             :         {"nqn", offsetof(struct nvmf_rpc_host_ctx, nqn), spdk_json_decode_string},
    1966             :         {"host", offsetof(struct nvmf_rpc_host_ctx, host), spdk_json_decode_string},
    1967             :         {"tgt_name", offsetof(struct nvmf_rpc_host_ctx, tgt_name), spdk_json_decode_string, true},
    1968             :         {"dhchap_key", offsetof(struct nvmf_rpc_host_ctx, dhchap_key), spdk_json_decode_string, true},
    1969             :         {"dhchap_ctrlr_key", offsetof(struct nvmf_rpc_host_ctx, dhchap_ctrlr_key), spdk_json_decode_string, true},
    1970             : };
    1971             : 
    1972             : static void
    1973           0 : nvmf_rpc_host_ctx_free(struct nvmf_rpc_host_ctx *ctx)
    1974             : {
    1975           0 :         free(ctx->nqn);
    1976           0 :         free(ctx->host);
    1977           0 :         free(ctx->tgt_name);
    1978           0 :         free(ctx->dhchap_key);
    1979           0 :         free(ctx->dhchap_ctrlr_key);
    1980           0 : }
    1981             : 
    1982             : static void
    1983           0 : rpc_nvmf_subsystem_add_host(struct spdk_jsonrpc_request *request,
    1984             :                             const struct spdk_json_val *params)
    1985             : {
    1986           0 :         struct nvmf_rpc_host_ctx ctx = {};
    1987             :         struct spdk_nvmf_subsystem *subsystem;
    1988           0 :         struct spdk_nvmf_host_opts opts = {};
    1989             :         struct spdk_nvmf_tgt *tgt;
    1990           0 :         struct spdk_key *key = NULL, *ckey = NULL;
    1991             :         int rc;
    1992             : 
    1993           0 :         if (spdk_json_decode_object_relaxed(params, nvmf_rpc_subsystem_host_decoder,
    1994             :                                             SPDK_COUNTOF(nvmf_rpc_subsystem_host_decoder),
    1995             :                                             &ctx)) {
    1996           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    1997           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    1998           0 :                 goto out;
    1999             :         }
    2000             : 
    2001           0 :         tgt = spdk_nvmf_get_tgt(ctx.tgt_name);
    2002           0 :         if (!tgt) {
    2003           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    2004           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2005             :                                                  "Unable to find a target.");
    2006           0 :                 goto out;
    2007             :         }
    2008             : 
    2009           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx.nqn);
    2010           0 :         if (!subsystem) {
    2011           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx.nqn);
    2012           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2013           0 :                 goto out;
    2014             :         }
    2015             : 
    2016           0 :         if (ctx.dhchap_key != NULL) {
    2017           0 :                 key = spdk_keyring_get_key(ctx.dhchap_key);
    2018           0 :                 if (key == NULL) {
    2019           0 :                         SPDK_ERRLOG("Unable to find DH-HMAC-CHAP key: %s\n", ctx.dhchap_key);
    2020           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2021             :                                                          "Invalid parameters");
    2022           0 :                         goto out;
    2023             :                 }
    2024             :         }
    2025             : 
    2026           0 :         if (ctx.dhchap_ctrlr_key != NULL) {
    2027           0 :                 ckey = spdk_keyring_get_key(ctx.dhchap_ctrlr_key);
    2028           0 :                 if (ckey == NULL) {
    2029           0 :                         SPDK_ERRLOG("Unable to find DH-HMAC-CHAP ctrlr key: %s\n",
    2030             :                                     ctx.dhchap_ctrlr_key);
    2031           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2032             :                                                          "Invalid parameters");
    2033           0 :                         goto out;
    2034             :                 }
    2035             :         }
    2036             : 
    2037           0 :         opts.size = SPDK_SIZEOF(&opts, dhchap_ctrlr_key);
    2038           0 :         opts.params = params;
    2039           0 :         opts.dhchap_key = key;
    2040           0 :         opts.dhchap_ctrlr_key = ckey;
    2041           0 :         rc = spdk_nvmf_subsystem_add_host_ext(subsystem, ctx.host, &opts);
    2042           0 :         if (rc != 0) {
    2043           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    2044           0 :                 goto out;
    2045             :         }
    2046             : 
    2047           0 :         spdk_jsonrpc_send_bool_response(request, true);
    2048           0 : out:
    2049           0 :         spdk_keyring_put_key(ckey);
    2050           0 :         spdk_keyring_put_key(key);
    2051           0 :         nvmf_rpc_host_ctx_free(&ctx);
    2052           0 : }
    2053           0 : SPDK_RPC_REGISTER("nvmf_subsystem_add_host", rpc_nvmf_subsystem_add_host, SPDK_RPC_RUNTIME)
    2054             : 
    2055             : static void
    2056           0 : rpc_nvmf_subsystem_remove_host_done(void *_ctx, int status)
    2057             : {
    2058           0 :         struct nvmf_rpc_host_ctx *ctx = _ctx;
    2059             : 
    2060           0 :         spdk_jsonrpc_send_bool_response(ctx->request, true);
    2061           0 :         nvmf_rpc_host_ctx_free(ctx);
    2062           0 :         free(ctx);
    2063           0 : }
    2064             : 
    2065             : static void
    2066           0 : rpc_nvmf_subsystem_remove_host(struct spdk_jsonrpc_request *request,
    2067             :                                const struct spdk_json_val *params)
    2068             : {
    2069             :         struct nvmf_rpc_host_ctx *ctx;
    2070             :         struct spdk_nvmf_subsystem *subsystem;
    2071             :         struct spdk_nvmf_tgt *tgt;
    2072             :         int rc;
    2073             : 
    2074           0 :         ctx = calloc(1, sizeof(*ctx));
    2075           0 :         if (ctx == NULL) {
    2076           0 :                 SPDK_ERRLOG("Unable to allocate context to perform RPC\n");
    2077           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory");
    2078           0 :                 return;
    2079             :         }
    2080             : 
    2081           0 :         ctx->request = request;
    2082             : 
    2083           0 :         if (spdk_json_decode_object(params, nvmf_rpc_subsystem_host_decoder,
    2084             :                                     SPDK_COUNTOF(nvmf_rpc_subsystem_host_decoder),
    2085             :                                     ctx)) {
    2086           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    2087           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2088           0 :                 nvmf_rpc_host_ctx_free(ctx);
    2089           0 :                 free(ctx);
    2090           0 :                 return;
    2091             :         }
    2092             : 
    2093           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    2094           0 :         if (!tgt) {
    2095           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    2096           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2097             :                                                  "Unable to find a target.");
    2098           0 :                 nvmf_rpc_host_ctx_free(ctx);
    2099           0 :                 free(ctx);
    2100           0 :                 return;
    2101             :         }
    2102             : 
    2103           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn);
    2104           0 :         if (!subsystem) {
    2105           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn);
    2106           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2107           0 :                 nvmf_rpc_host_ctx_free(ctx);
    2108           0 :                 free(ctx);
    2109           0 :                 return;
    2110             :         }
    2111             : 
    2112           0 :         rc = spdk_nvmf_subsystem_remove_host(subsystem, ctx->host);
    2113           0 :         if (rc != 0) {
    2114           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    2115           0 :                 nvmf_rpc_host_ctx_free(ctx);
    2116           0 :                 free(ctx);
    2117           0 :                 return;
    2118             :         }
    2119             : 
    2120           0 :         rc = spdk_nvmf_subsystem_disconnect_host(subsystem, ctx->host,
    2121             :                         rpc_nvmf_subsystem_remove_host_done,
    2122             :                         ctx);
    2123           0 :         if (rc != 0) {
    2124           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    2125           0 :                 nvmf_rpc_host_ctx_free(ctx);
    2126           0 :                 free(ctx);
    2127           0 :                 return;
    2128             :         }
    2129             : }
    2130           0 : SPDK_RPC_REGISTER("nvmf_subsystem_remove_host", rpc_nvmf_subsystem_remove_host,
    2131             :                   SPDK_RPC_RUNTIME)
    2132             : 
    2133             : static void
    2134           0 : rpc_nvmf_subsystem_set_keys(struct spdk_jsonrpc_request *request,
    2135             :                             const struct spdk_json_val *params)
    2136             : {
    2137           0 :         struct nvmf_rpc_host_ctx ctx = {};
    2138             :         struct spdk_nvmf_subsystem *subsystem;
    2139           0 :         struct spdk_nvmf_subsystem_key_opts opts = {};
    2140             :         struct spdk_nvmf_tgt *tgt;
    2141           0 :         struct spdk_key *key = NULL, *ckey = NULL;
    2142             :         int rc;
    2143             : 
    2144           0 :         if (spdk_json_decode_object(params, nvmf_rpc_subsystem_host_decoder,
    2145             :                                     SPDK_COUNTOF(nvmf_rpc_subsystem_host_decoder), &ctx)) {
    2146           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2147             :                                                  "Invalid parameters");
    2148           0 :                 goto out;
    2149             :         }
    2150             : 
    2151           0 :         tgt = spdk_nvmf_get_tgt(ctx.tgt_name);
    2152           0 :         if (!tgt) {
    2153           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2154             :                                                  "Invalid parameters");
    2155           0 :                 goto out;
    2156             :         }
    2157           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx.nqn);
    2158           0 :         if (!subsystem) {
    2159           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2160             :                                                  "Invalid parameters");
    2161           0 :                 goto out;
    2162             :         }
    2163             : 
    2164           0 :         if (ctx.dhchap_key != NULL) {
    2165           0 :                 key = spdk_keyring_get_key(ctx.dhchap_key);
    2166           0 :                 if (key == NULL) {
    2167           0 :                         SPDK_ERRLOG("Unable to find DH-HMAC-CHAP key: %s\n", ctx.dhchap_key);
    2168           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2169             :                                                          "Invalid parameters");
    2170           0 :                         goto out;
    2171             :                 }
    2172             :         }
    2173           0 :         if (ctx.dhchap_ctrlr_key != NULL) {
    2174           0 :                 ckey = spdk_keyring_get_key(ctx.dhchap_ctrlr_key);
    2175           0 :                 if (ckey == NULL) {
    2176           0 :                         SPDK_ERRLOG("Unable to find DH-HMAC-CHAP ctrlr key: %s\n",
    2177             :                                     ctx.dhchap_ctrlr_key);
    2178           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2179             :                                                          "Invalid parameters");
    2180           0 :                         goto out;
    2181             :                 }
    2182             :         }
    2183             : 
    2184           0 :         opts.size = SPDK_SIZEOF(&opts, dhchap_ctrlr_key);
    2185           0 :         opts.dhchap_key = key;
    2186           0 :         opts.dhchap_ctrlr_key = ckey;
    2187           0 :         rc = spdk_nvmf_subsystem_set_keys(subsystem, ctx.host, &opts);
    2188           0 :         if (rc != 0) {
    2189           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
    2190           0 :                 goto out;
    2191             :         }
    2192             : 
    2193           0 :         spdk_jsonrpc_send_bool_response(request, true);
    2194           0 : out:
    2195           0 :         spdk_keyring_put_key(ckey);
    2196           0 :         spdk_keyring_put_key(key);
    2197           0 :         nvmf_rpc_host_ctx_free(&ctx);
    2198           0 : }
    2199           0 : SPDK_RPC_REGISTER("nvmf_subsystem_set_keys", rpc_nvmf_subsystem_set_keys, SPDK_RPC_RUNTIME)
    2200             : 
    2201             : static const struct spdk_json_object_decoder nvmf_rpc_subsystem_any_host_decoder[] = {
    2202             :         {"nqn", offsetof(struct nvmf_rpc_host_ctx, nqn), spdk_json_decode_string},
    2203             :         {"allow_any_host", offsetof(struct nvmf_rpc_host_ctx, allow_any_host), spdk_json_decode_bool},
    2204             :         {"tgt_name", offsetof(struct nvmf_rpc_host_ctx, tgt_name), spdk_json_decode_string, true},
    2205             : };
    2206             : 
    2207             : static void
    2208           0 : rpc_nvmf_subsystem_allow_any_host(struct spdk_jsonrpc_request *request,
    2209             :                                   const struct spdk_json_val *params)
    2210             : {
    2211           0 :         struct nvmf_rpc_host_ctx ctx = {};
    2212             :         struct spdk_nvmf_subsystem *subsystem;
    2213             :         struct spdk_nvmf_tgt *tgt;
    2214             :         int rc;
    2215             : 
    2216           0 :         if (spdk_json_decode_object(params, nvmf_rpc_subsystem_any_host_decoder,
    2217             :                                     SPDK_COUNTOF(nvmf_rpc_subsystem_any_host_decoder),
    2218             :                                     &ctx)) {
    2219           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    2220           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2221           0 :                 nvmf_rpc_host_ctx_free(&ctx);
    2222           0 :                 return;
    2223             :         }
    2224             : 
    2225           0 :         tgt = spdk_nvmf_get_tgt(ctx.tgt_name);
    2226           0 :         if (!tgt) {
    2227           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    2228           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2229             :                                                  "Unable to find a target.");
    2230           0 :                 nvmf_rpc_host_ctx_free(&ctx);
    2231           0 :                 return;
    2232             :         }
    2233             : 
    2234           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx.nqn);
    2235           0 :         if (!subsystem) {
    2236           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx.nqn);
    2237           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2238           0 :                 nvmf_rpc_host_ctx_free(&ctx);
    2239           0 :                 return;
    2240             :         }
    2241             : 
    2242           0 :         rc = spdk_nvmf_subsystem_set_allow_any_host(subsystem, ctx.allow_any_host);
    2243           0 :         if (rc != 0) {
    2244           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Internal error");
    2245           0 :                 nvmf_rpc_host_ctx_free(&ctx);
    2246           0 :                 return;
    2247             :         }
    2248             : 
    2249           0 :         spdk_jsonrpc_send_bool_response(request, true);
    2250           0 :         nvmf_rpc_host_ctx_free(&ctx);
    2251             : }
    2252           0 : SPDK_RPC_REGISTER("nvmf_subsystem_allow_any_host", rpc_nvmf_subsystem_allow_any_host,
    2253             :                   SPDK_RPC_RUNTIME)
    2254             : 
    2255             : struct nvmf_rpc_target_ctx {
    2256             :         char *name;
    2257             :         uint32_t max_subsystems;
    2258             :         char *discovery_filter;
    2259             : };
    2260             : 
    2261             : static int
    2262           0 : decode_discovery_filter(const struct spdk_json_val *val, void *out)
    2263             : {
    2264           0 :         uint32_t *_filter = out;
    2265           0 :         uint32_t filter = SPDK_NVMF_TGT_DISCOVERY_MATCH_ANY;
    2266           0 :         char *tokens = spdk_json_strdup(val);
    2267             :         char *tok;
    2268           0 :         int rc = -EINVAL;
    2269           0 :         bool all_specified = false;
    2270             : 
    2271           0 :         if (!tokens) {
    2272           0 :                 return -ENOMEM;
    2273             :         }
    2274             : 
    2275           0 :         tok = strtok(tokens, ",");
    2276           0 :         while (tok) {
    2277           0 :                 if (strncmp(tok, "match_any", 9) == 0) {
    2278           0 :                         if (filter != SPDK_NVMF_TGT_DISCOVERY_MATCH_ANY) {
    2279           0 :                                 goto out;
    2280             :                         }
    2281           0 :                         filter = SPDK_NVMF_TGT_DISCOVERY_MATCH_ANY;
    2282           0 :                         all_specified = true;
    2283             :                 } else {
    2284           0 :                         if (all_specified) {
    2285           0 :                                 goto out;
    2286             :                         }
    2287           0 :                         if (strncmp(tok, "transport", 9) == 0) {
    2288           0 :                                 filter |= SPDK_NVMF_TGT_DISCOVERY_MATCH_TRANSPORT_TYPE;
    2289           0 :                         } else if (strncmp(tok, "address", 7) == 0) {
    2290           0 :                                 filter |= SPDK_NVMF_TGT_DISCOVERY_MATCH_TRANSPORT_ADDRESS;
    2291           0 :                         } else if (strncmp(tok, "svcid", 5) == 0) {
    2292           0 :                                 filter |= SPDK_NVMF_TGT_DISCOVERY_MATCH_TRANSPORT_SVCID;
    2293             :                         } else {
    2294           0 :                                 SPDK_ERRLOG("Invalid value %s\n", tok);
    2295           0 :                                 goto out;
    2296             :                         }
    2297             :                 }
    2298             : 
    2299           0 :                 tok = strtok(NULL, ",");
    2300             :         }
    2301             : 
    2302           0 :         rc = 0;
    2303           0 :         *_filter = filter;
    2304             : 
    2305           0 : out:
    2306           0 :         free(tokens);
    2307             : 
    2308           0 :         return rc;
    2309             : }
    2310             : 
    2311             : static const struct spdk_json_object_decoder nvmf_rpc_create_target_decoder[] = {
    2312             :         {"name", offsetof(struct nvmf_rpc_target_ctx, name), spdk_json_decode_string},
    2313             :         {"max_subsystems", offsetof(struct nvmf_rpc_target_ctx, max_subsystems), spdk_json_decode_uint32, true},
    2314             :         {"discovery_filter", offsetof(struct nvmf_rpc_target_ctx, discovery_filter), decode_discovery_filter, true}
    2315             : };
    2316             : 
    2317             : static void
    2318           0 : rpc_nvmf_create_target(struct spdk_jsonrpc_request *request,
    2319             :                        const struct spdk_json_val *params)
    2320             : {
    2321           0 :         struct spdk_nvmf_target_opts    opts;
    2322           0 :         struct nvmf_rpc_target_ctx      ctx = {0};
    2323             :         struct spdk_nvmf_tgt            *tgt;
    2324             :         struct spdk_json_write_ctx      *w;
    2325             : 
    2326             :         /* Decode parameters the first time to get the transport type */
    2327           0 :         if (spdk_json_decode_object(params, nvmf_rpc_create_target_decoder,
    2328             :                                     SPDK_COUNTOF(nvmf_rpc_create_target_decoder),
    2329             :                                     &ctx)) {
    2330           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    2331           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2332           0 :                 goto out;
    2333             :         }
    2334             : 
    2335           0 :         snprintf(opts.name, NVMF_TGT_NAME_MAX_LENGTH, "%s", ctx.name);
    2336           0 :         opts.max_subsystems = ctx.max_subsystems;
    2337           0 :         opts.size = SPDK_SIZEOF(&opts, discovery_filter);
    2338             : 
    2339           0 :         if (spdk_nvmf_get_tgt(opts.name) != NULL) {
    2340           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2341             :                                                  "Target already exists.");
    2342           0 :                 goto out;
    2343             :         }
    2344             : 
    2345           0 :         tgt = spdk_nvmf_tgt_create(&opts);
    2346             : 
    2347           0 :         if (tgt == NULL) {
    2348           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2349             :                                                  "Unable to create the requested target.");
    2350           0 :                 goto out;
    2351             :         }
    2352             : 
    2353           0 :         w = spdk_jsonrpc_begin_result(request);
    2354           0 :         spdk_json_write_string(w, spdk_nvmf_tgt_get_name(tgt));
    2355           0 :         spdk_jsonrpc_end_result(request, w);
    2356           0 : out:
    2357           0 :         free(ctx.name);
    2358           0 :         free(ctx.discovery_filter);
    2359           0 : }
    2360           0 : /* private */ SPDK_RPC_REGISTER("nvmf_create_target", rpc_nvmf_create_target, SPDK_RPC_RUNTIME);
    2361             : 
    2362             : static const struct spdk_json_object_decoder nvmf_rpc_destroy_target_decoder[] = {
    2363             :         {"name", offsetof(struct nvmf_rpc_target_ctx, name), spdk_json_decode_string},
    2364             : };
    2365             : 
    2366             : static void
    2367           0 : nvmf_rpc_destroy_target_done(void *ctx, int status)
    2368             : {
    2369           0 :         struct spdk_jsonrpc_request     *request = ctx;
    2370             : 
    2371           0 :         spdk_jsonrpc_send_bool_response(request, true);
    2372           0 : }
    2373             : 
    2374             : static void
    2375           0 : rpc_nvmf_delete_target(struct spdk_jsonrpc_request *request,
    2376             :                        const struct spdk_json_val *params)
    2377             : {
    2378           0 :         struct nvmf_rpc_target_ctx      ctx = {0};
    2379             :         struct spdk_nvmf_tgt            *tgt;
    2380             : 
    2381             :         /* Decode parameters the first time to get the transport type */
    2382           0 :         if (spdk_json_decode_object(params, nvmf_rpc_destroy_target_decoder,
    2383             :                                     SPDK_COUNTOF(nvmf_rpc_destroy_target_decoder),
    2384             :                                     &ctx)) {
    2385           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    2386           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2387           0 :                 free(ctx.name);
    2388           0 :                 return;
    2389             :         }
    2390             : 
    2391           0 :         tgt = spdk_nvmf_get_tgt(ctx.name);
    2392             : 
    2393           0 :         if (tgt == NULL) {
    2394           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2395             :                                                  "The specified target doesn't exist, cannot delete it.");
    2396           0 :                 free(ctx.name);
    2397           0 :                 return;
    2398             :         }
    2399             : 
    2400           0 :         spdk_nvmf_tgt_destroy(tgt, nvmf_rpc_destroy_target_done, request);
    2401           0 :         free(ctx.name);
    2402             : }
    2403           0 : /* private */ SPDK_RPC_REGISTER("nvmf_delete_target", rpc_nvmf_delete_target, SPDK_RPC_RUNTIME);
    2404             : 
    2405             : static void
    2406           0 : rpc_nvmf_get_targets(struct spdk_jsonrpc_request *request,
    2407             :                      const struct spdk_json_val *params)
    2408             : {
    2409             :         struct spdk_json_write_ctx      *w;
    2410             :         struct spdk_nvmf_tgt            *tgt;
    2411             :         const char                      *name;
    2412             : 
    2413           0 :         if (params != NULL) {
    2414           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2415             :                                                  "nvmf_get_targets has no parameters.");
    2416           0 :                 return;
    2417             :         }
    2418             : 
    2419           0 :         w = spdk_jsonrpc_begin_result(request);
    2420           0 :         spdk_json_write_array_begin(w);
    2421             : 
    2422           0 :         tgt = spdk_nvmf_get_first_tgt();
    2423             : 
    2424           0 :         while (tgt != NULL) {
    2425           0 :                 name = spdk_nvmf_tgt_get_name(tgt);
    2426           0 :                 spdk_json_write_string(w, name);
    2427           0 :                 tgt = spdk_nvmf_get_next_tgt(tgt);
    2428             :         }
    2429             : 
    2430           0 :         spdk_json_write_array_end(w);
    2431           0 :         spdk_jsonrpc_end_result(request, w);
    2432             : }
    2433           0 : /* private */ SPDK_RPC_REGISTER("nvmf_get_targets", rpc_nvmf_get_targets, SPDK_RPC_RUNTIME);
    2434             : 
    2435             : struct nvmf_rpc_create_transport_ctx {
    2436             :         char                            *trtype;
    2437             :         char                            *tgt_name;
    2438             :         struct spdk_nvmf_transport_opts opts;
    2439             :         struct spdk_jsonrpc_request     *request;
    2440             :         struct spdk_nvmf_transport      *transport;
    2441             :         int                             status;
    2442             : };
    2443             : 
    2444             : /**
    2445             :  * `max_qpairs_per_ctrlr` represents both admin and IO qpairs, that confuses
    2446             :  * users when they configure a transport using RPC. So it was decided to
    2447             :  * deprecate `max_qpairs_per_ctrlr` RPC parameter and use `max_io_qpairs_per_ctrlr`
    2448             :  * But internal logic remains unchanged and SPDK expects that
    2449             :  * spdk_nvmf_transport_opts::max_qpairs_per_ctrlr includes an admin qpair.
    2450             :  * This function parses the number of IO qpairs and adds +1 for admin qpair.
    2451             :  */
    2452             : static int
    2453           0 : nvmf_rpc_decode_max_io_qpairs(const struct spdk_json_val *val, void *out)
    2454             : {
    2455           0 :         uint16_t *i = out;
    2456             :         int rc;
    2457             : 
    2458           0 :         rc = spdk_json_number_to_uint16(val, i);
    2459           0 :         if (rc == 0) {
    2460           0 :                 (*i)++;
    2461             :         }
    2462             : 
    2463           0 :         return rc;
    2464             : }
    2465             : 
    2466             : static const struct spdk_json_object_decoder nvmf_rpc_create_transport_decoder[] = {
    2467             :         {       "trtype", offsetof(struct nvmf_rpc_create_transport_ctx, trtype), spdk_json_decode_string},
    2468             :         {
    2469             :                 "max_queue_depth", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_queue_depth),
    2470             :                 spdk_json_decode_uint16, true
    2471             :         },
    2472             :         {
    2473             :                 "max_io_qpairs_per_ctrlr", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_qpairs_per_ctrlr),
    2474             :                 nvmf_rpc_decode_max_io_qpairs, true
    2475             :         },
    2476             :         {
    2477             :                 "in_capsule_data_size", offsetof(struct nvmf_rpc_create_transport_ctx, opts.in_capsule_data_size),
    2478             :                 spdk_json_decode_uint32, true
    2479             :         },
    2480             :         {
    2481             :                 "max_io_size", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_io_size),
    2482             :                 spdk_json_decode_uint32, true
    2483             :         },
    2484             :         {
    2485             :                 "io_unit_size", offsetof(struct nvmf_rpc_create_transport_ctx, opts.io_unit_size),
    2486             :                 spdk_json_decode_uint32, true
    2487             :         },
    2488             :         {
    2489             :                 "max_aq_depth", offsetof(struct nvmf_rpc_create_transport_ctx, opts.max_aq_depth),
    2490             :                 spdk_json_decode_uint32, true
    2491             :         },
    2492             :         {
    2493             :                 "num_shared_buffers", offsetof(struct nvmf_rpc_create_transport_ctx, opts.num_shared_buffers),
    2494             :                 spdk_json_decode_uint32, true
    2495             :         },
    2496             :         {
    2497             :                 "buf_cache_size", offsetof(struct nvmf_rpc_create_transport_ctx, opts.buf_cache_size),
    2498             :                 spdk_json_decode_uint32, true
    2499             :         },
    2500             :         {
    2501             :                 "dif_insert_or_strip", offsetof(struct nvmf_rpc_create_transport_ctx, opts.dif_insert_or_strip),
    2502             :                 spdk_json_decode_bool, true
    2503             :         },
    2504             :         {
    2505             :                 "abort_timeout_sec", offsetof(struct nvmf_rpc_create_transport_ctx, opts.abort_timeout_sec),
    2506             :                 spdk_json_decode_uint32, true
    2507             :         },
    2508             :         {
    2509             :                 "zcopy", offsetof(struct nvmf_rpc_create_transport_ctx, opts.zcopy),
    2510             :                 spdk_json_decode_bool, true
    2511             :         },
    2512             :         {
    2513             :                 "tgt_name", offsetof(struct nvmf_rpc_create_transport_ctx, tgt_name),
    2514             :                 spdk_json_decode_string, true
    2515             :         },
    2516             :         {
    2517             :                 "acceptor_poll_rate", offsetof(struct nvmf_rpc_create_transport_ctx, opts.acceptor_poll_rate),
    2518             :                 spdk_json_decode_uint32, true
    2519             :         },
    2520             :         {
    2521             :                 "ack_timeout", offsetof(struct nvmf_rpc_create_transport_ctx, opts.ack_timeout),
    2522             :                 spdk_json_decode_uint32, true
    2523             :         },
    2524             :         {
    2525             :                 "data_wr_pool_size", offsetof(struct nvmf_rpc_create_transport_ctx, opts.data_wr_pool_size),
    2526             :                 spdk_json_decode_uint32, true
    2527             :         },
    2528             :         {
    2529             :                 "disable_command_passthru", offsetof(struct nvmf_rpc_create_transport_ctx, opts.disable_command_passthru),
    2530             :                 spdk_json_decode_bool, true
    2531             :         }
    2532             : };
    2533             : 
    2534             : static void
    2535           0 : nvmf_rpc_create_transport_ctx_free(struct nvmf_rpc_create_transport_ctx *ctx)
    2536             : {
    2537           0 :         free(ctx->trtype);
    2538           0 :         free(ctx->tgt_name);
    2539           0 :         free(ctx);
    2540           0 : }
    2541             : 
    2542             : static void
    2543           0 : nvmf_rpc_transport_destroy_done_cb(void *cb_arg)
    2544             : {
    2545           0 :         struct nvmf_rpc_create_transport_ctx *ctx = cb_arg;
    2546             : 
    2547           0 :         spdk_jsonrpc_send_error_response_fmt(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2548             :                                              "Failed to add transport to tgt.(%d)", ctx->status);
    2549           0 :         nvmf_rpc_create_transport_ctx_free(ctx);
    2550           0 : }
    2551             : 
    2552             : static void
    2553           0 : nvmf_rpc_tgt_add_transport_done(void *cb_arg, int status)
    2554             : {
    2555           0 :         struct nvmf_rpc_create_transport_ctx *ctx = cb_arg;
    2556             : 
    2557           0 :         if (status) {
    2558           0 :                 SPDK_ERRLOG("Failed to add transport to tgt.(%d)\n", status);
    2559           0 :                 ctx->status = status;
    2560           0 :                 spdk_nvmf_transport_destroy(ctx->transport, nvmf_rpc_transport_destroy_done_cb, ctx);
    2561           0 :                 return;
    2562             :         }
    2563             : 
    2564           0 :         spdk_jsonrpc_send_bool_response(ctx->request, true);
    2565           0 :         nvmf_rpc_create_transport_ctx_free(ctx);
    2566             : }
    2567             : 
    2568             : static void
    2569           0 : nvmf_rpc_create_transport_done(void *cb_arg, struct spdk_nvmf_transport *transport)
    2570             : {
    2571           0 :         struct nvmf_rpc_create_transport_ctx *ctx = cb_arg;
    2572             : 
    2573           0 :         if (!transport) {
    2574           0 :                 SPDK_ERRLOG("Failed to create transport.\n");
    2575           0 :                 spdk_jsonrpc_send_error_response(ctx->request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2576             :                                                  "Failed to create transport.");
    2577           0 :                 nvmf_rpc_create_transport_ctx_free(ctx);
    2578           0 :                 return;
    2579             :         }
    2580             : 
    2581           0 :         ctx->transport = transport;
    2582             : 
    2583           0 :         spdk_nvmf_tgt_add_transport(spdk_nvmf_get_tgt(ctx->tgt_name), transport,
    2584             :                                     nvmf_rpc_tgt_add_transport_done, ctx);
    2585             : }
    2586             : 
    2587             : static void
    2588           0 : rpc_nvmf_create_transport(struct spdk_jsonrpc_request *request,
    2589             :                           const struct spdk_json_val *params)
    2590             : {
    2591             :         struct nvmf_rpc_create_transport_ctx *ctx;
    2592             :         struct spdk_nvmf_tgt *tgt;
    2593             :         int rc;
    2594             : 
    2595           0 :         ctx = calloc(1, sizeof(*ctx));
    2596           0 :         if (!ctx) {
    2597           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, "Out of memory");
    2598           0 :                 return;
    2599             :         }
    2600             : 
    2601             :         /* Decode parameters the first time to get the transport type */
    2602           0 :         if (spdk_json_decode_object_relaxed(params, nvmf_rpc_create_transport_decoder,
    2603             :                                             SPDK_COUNTOF(nvmf_rpc_create_transport_decoder),
    2604             :                                             ctx)) {
    2605           0 :                 SPDK_ERRLOG("spdk_json_decode_object_relaxed failed\n");
    2606           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2607           0 :                 nvmf_rpc_create_transport_ctx_free(ctx);
    2608           0 :                 return;
    2609             :         }
    2610             : 
    2611           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    2612           0 :         if (!tgt) {
    2613           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    2614           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2615             :                                                  "Unable to find a target.");
    2616           0 :                 nvmf_rpc_create_transport_ctx_free(ctx);
    2617           0 :                 return;
    2618             :         }
    2619             : 
    2620             :         /* Initialize all the transport options (based on transport type) and decode the
    2621             :          * parameters again to update any options passed in rpc create transport call.
    2622             :          */
    2623           0 :         if (!spdk_nvmf_transport_opts_init(ctx->trtype, &ctx->opts, sizeof(ctx->opts))) {
    2624             :                 /* This can happen if user specifies PCIE transport type which isn't valid for
    2625             :                  * NVMe-oF.
    2626             :                  */
    2627           0 :                 SPDK_ERRLOG("Invalid transport type '%s'\n", ctx->trtype);
    2628           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    2629             :                                                      "Invalid transport type '%s'", ctx->trtype);
    2630           0 :                 nvmf_rpc_create_transport_ctx_free(ctx);
    2631           0 :                 return;
    2632             :         }
    2633             : 
    2634           0 :         if (spdk_json_decode_object_relaxed(params, nvmf_rpc_create_transport_decoder,
    2635             :                                             SPDK_COUNTOF(nvmf_rpc_create_transport_decoder),
    2636             :                                             ctx)) {
    2637           0 :                 SPDK_ERRLOG("spdk_json_decode_object_relaxed failed\n");
    2638           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2639           0 :                 nvmf_rpc_create_transport_ctx_free(ctx);
    2640           0 :                 return;
    2641             :         }
    2642             : 
    2643           0 :         if (spdk_nvmf_tgt_get_transport(tgt, ctx->trtype)) {
    2644           0 :                 SPDK_ERRLOG("Transport type '%s' already exists\n", ctx->trtype);
    2645           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2646             :                                                      "Transport type '%s' already exists", ctx->trtype);
    2647           0 :                 nvmf_rpc_create_transport_ctx_free(ctx);
    2648           0 :                 return;
    2649             :         }
    2650             : 
    2651             :         /* Transport can parse additional params themselves */
    2652           0 :         ctx->opts.transport_specific = params;
    2653           0 :         ctx->request = request;
    2654             : 
    2655           0 :         rc = spdk_nvmf_transport_create_async(ctx->trtype, &ctx->opts, nvmf_rpc_create_transport_done, ctx);
    2656           0 :         if (rc) {
    2657           0 :                 SPDK_ERRLOG("Transport type '%s' create failed\n", ctx->trtype);
    2658           0 :                 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2659             :                                                      "Transport type '%s' create failed", ctx->trtype);
    2660           0 :                 nvmf_rpc_create_transport_ctx_free(ctx);
    2661             :         }
    2662             : }
    2663           0 : SPDK_RPC_REGISTER("nvmf_create_transport", rpc_nvmf_create_transport, SPDK_RPC_RUNTIME)
    2664             : 
    2665             : struct rpc_get_transport {
    2666             :         char *trtype;
    2667             :         char *tgt_name;
    2668             : };
    2669             : 
    2670             : static const struct spdk_json_object_decoder rpc_get_transport_decoders[] = {
    2671             :         {"trtype", offsetof(struct rpc_get_transport, trtype), spdk_json_decode_string, true},
    2672             :         {"tgt_name", offsetof(struct rpc_get_transport, tgt_name), spdk_json_decode_string, true},
    2673             : };
    2674             : 
    2675             : static void
    2676           0 : rpc_nvmf_get_transports(struct spdk_jsonrpc_request *request,
    2677             :                         const struct spdk_json_val *params)
    2678             : {
    2679           0 :         struct rpc_get_transport req = { 0 };
    2680             :         struct spdk_json_write_ctx *w;
    2681           0 :         struct spdk_nvmf_transport *transport = NULL;
    2682             :         struct spdk_nvmf_tgt *tgt;
    2683             : 
    2684           0 :         if (params) {
    2685           0 :                 if (spdk_json_decode_object(params, rpc_get_transport_decoders,
    2686             :                                             SPDK_COUNTOF(rpc_get_transport_decoders),
    2687             :                                             &req)) {
    2688           0 :                         SPDK_ERRLOG("spdk_json_decode_object failed\n");
    2689           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2690           0 :                         return;
    2691             :                 }
    2692             :         }
    2693             : 
    2694           0 :         tgt = spdk_nvmf_get_tgt(req.tgt_name);
    2695           0 :         if (!tgt) {
    2696           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2697             :                                                  "Unable to find a target.");
    2698           0 :                 free(req.trtype);
    2699           0 :                 free(req.tgt_name);
    2700           0 :                 return;
    2701             :         }
    2702             : 
    2703           0 :         if (req.trtype) {
    2704           0 :                 transport = spdk_nvmf_tgt_get_transport(tgt, req.trtype);
    2705           0 :                 if (transport == NULL) {
    2706           0 :                         SPDK_ERRLOG("transport '%s' does not exist\n", req.trtype);
    2707           0 :                         spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
    2708           0 :                         free(req.trtype);
    2709           0 :                         free(req.tgt_name);
    2710           0 :                         return;
    2711             :                 }
    2712             :         }
    2713             : 
    2714           0 :         w = spdk_jsonrpc_begin_result(request);
    2715           0 :         spdk_json_write_array_begin(w);
    2716             : 
    2717           0 :         if (transport) {
    2718           0 :                 nvmf_transport_dump_opts(transport, w, false);
    2719             :         } else {
    2720           0 :                 for (transport = spdk_nvmf_transport_get_first(tgt); transport != NULL;
    2721           0 :                      transport = spdk_nvmf_transport_get_next(transport)) {
    2722           0 :                         nvmf_transport_dump_opts(transport, w, false);
    2723             :                 }
    2724             :         }
    2725             : 
    2726           0 :         spdk_json_write_array_end(w);
    2727           0 :         spdk_jsonrpc_end_result(request, w);
    2728           0 :         free(req.trtype);
    2729           0 :         free(req.tgt_name);
    2730             : }
    2731           0 : SPDK_RPC_REGISTER("nvmf_get_transports", rpc_nvmf_get_transports, SPDK_RPC_RUNTIME)
    2732             : 
    2733             : struct rpc_nvmf_get_stats_ctx {
    2734             :         char *tgt_name;
    2735             :         struct spdk_nvmf_tgt *tgt;
    2736             :         struct spdk_jsonrpc_request *request;
    2737             :         struct spdk_json_write_ctx *w;
    2738             : };
    2739             : 
    2740             : static const struct spdk_json_object_decoder rpc_get_stats_decoders[] = {
    2741             :         {"tgt_name", offsetof(struct rpc_nvmf_get_stats_ctx, tgt_name), spdk_json_decode_string, true},
    2742             : };
    2743             : 
    2744             : static void
    2745           0 : free_get_stats_ctx(struct rpc_nvmf_get_stats_ctx *ctx)
    2746             : {
    2747           0 :         free(ctx->tgt_name);
    2748           0 :         free(ctx);
    2749           0 : }
    2750             : 
    2751             : static void
    2752           0 : rpc_nvmf_get_stats_done(struct spdk_io_channel_iter *i, int status)
    2753             : {
    2754           0 :         struct rpc_nvmf_get_stats_ctx *ctx = spdk_io_channel_iter_get_ctx(i);
    2755             : 
    2756           0 :         spdk_json_write_array_end(ctx->w);
    2757           0 :         spdk_json_write_object_end(ctx->w);
    2758           0 :         spdk_jsonrpc_end_result(ctx->request, ctx->w);
    2759           0 :         free_get_stats_ctx(ctx);
    2760           0 : }
    2761             : 
    2762             : static void
    2763           0 : _rpc_nvmf_get_stats(struct spdk_io_channel_iter *i)
    2764             : {
    2765           0 :         struct rpc_nvmf_get_stats_ctx *ctx = spdk_io_channel_iter_get_ctx(i);
    2766             :         struct spdk_io_channel *ch;
    2767             :         struct spdk_nvmf_poll_group *group;
    2768             : 
    2769           0 :         ch = spdk_get_io_channel(ctx->tgt);
    2770           0 :         group = spdk_io_channel_get_ctx(ch);
    2771             : 
    2772           0 :         spdk_nvmf_poll_group_dump_stat(group, ctx->w);
    2773             : 
    2774           0 :         spdk_put_io_channel(ch);
    2775           0 :         spdk_for_each_channel_continue(i, 0);
    2776           0 : }
    2777             : 
    2778             : 
    2779             : static void
    2780           0 : rpc_nvmf_get_stats(struct spdk_jsonrpc_request *request,
    2781             :                    const struct spdk_json_val *params)
    2782             : {
    2783             :         struct rpc_nvmf_get_stats_ctx *ctx;
    2784             : 
    2785           0 :         ctx = calloc(1, sizeof(*ctx));
    2786           0 :         if (!ctx) {
    2787           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2788             :                                                  "Memory allocation error");
    2789           0 :                 return;
    2790             :         }
    2791           0 :         ctx->request = request;
    2792             : 
    2793           0 :         if (params) {
    2794           0 :                 if (spdk_json_decode_object(params, rpc_get_stats_decoders,
    2795             :                                             SPDK_COUNTOF(rpc_get_stats_decoders),
    2796             :                                             ctx)) {
    2797           0 :                         SPDK_ERRLOG("spdk_json_decode_object failed\n");
    2798           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    2799           0 :                         free_get_stats_ctx(ctx);
    2800           0 :                         return;
    2801             :                 }
    2802             :         }
    2803             : 
    2804           0 :         ctx->tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    2805           0 :         if (!ctx->tgt) {
    2806           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    2807             :                                                  "Unable to find a target.");
    2808           0 :                 free_get_stats_ctx(ctx);
    2809           0 :                 return;
    2810             :         }
    2811             : 
    2812           0 :         ctx->w = spdk_jsonrpc_begin_result(ctx->request);
    2813           0 :         spdk_json_write_object_begin(ctx->w);
    2814           0 :         spdk_json_write_named_uint64(ctx->w, "tick_rate", spdk_get_ticks_hz());
    2815           0 :         spdk_json_write_named_array_begin(ctx->w, "poll_groups");
    2816             : 
    2817           0 :         spdk_for_each_channel(ctx->tgt,
    2818             :                               _rpc_nvmf_get_stats,
    2819             :                               ctx,
    2820             :                               rpc_nvmf_get_stats_done);
    2821             : }
    2822             : 
    2823           0 : SPDK_RPC_REGISTER("nvmf_get_stats", rpc_nvmf_get_stats, SPDK_RPC_RUNTIME)
    2824             : 
    2825             : static void
    2826           0 : dump_nvmf_ctrlr(struct spdk_json_write_ctx *w, struct spdk_nvmf_ctrlr *ctrlr)
    2827             : {
    2828             :         uint32_t count;
    2829             : 
    2830           0 :         spdk_json_write_object_begin(w);
    2831             : 
    2832           0 :         spdk_json_write_named_uint32(w, "cntlid", ctrlr->cntlid);
    2833           0 :         spdk_json_write_named_string(w, "hostnqn", ctrlr->hostnqn);
    2834           0 :         spdk_json_write_named_uuid(w, "hostid", &ctrlr->hostid);
    2835             : 
    2836           0 :         count = spdk_bit_array_count_set(ctrlr->qpair_mask);
    2837           0 :         spdk_json_write_named_uint32(w, "num_io_qpairs", count);
    2838             : 
    2839           0 :         spdk_json_write_object_end(w);
    2840           0 : }
    2841             : 
    2842             : static const char *
    2843           0 : nvmf_qpair_state_str(enum spdk_nvmf_qpair_state state)
    2844             : {
    2845           0 :         switch (state) {
    2846           0 :         case SPDK_NVMF_QPAIR_UNINITIALIZED:
    2847           0 :                 return "uninitialized";
    2848           0 :         case SPDK_NVMF_QPAIR_CONNECTING:
    2849           0 :                 return "connecting";
    2850           0 :         case SPDK_NVMF_QPAIR_ENABLED:
    2851           0 :                 return "enabled";
    2852           0 :         case SPDK_NVMF_QPAIR_DEACTIVATING:
    2853           0 :                 return "deactivating";
    2854           0 :         case SPDK_NVMF_QPAIR_ERROR:
    2855           0 :                 return "error";
    2856           0 :         default:
    2857           0 :                 return NULL;
    2858             :         }
    2859             : }
    2860             : 
    2861             : static void
    2862           0 : dump_nvmf_qpair(struct spdk_json_write_ctx *w, struct spdk_nvmf_qpair *qpair)
    2863             : {
    2864           0 :         struct spdk_nvme_transport_id trid = {};
    2865             : 
    2866           0 :         spdk_json_write_object_begin(w);
    2867             : 
    2868           0 :         spdk_json_write_named_uint32(w, "cntlid", qpair->ctrlr->cntlid);
    2869           0 :         spdk_json_write_named_uint32(w, "qid", qpair->qid);
    2870           0 :         spdk_json_write_named_string(w, "state", nvmf_qpair_state_str(qpair->state));
    2871           0 :         spdk_json_write_named_string(w, "thread", spdk_thread_get_name(spdk_get_thread()));
    2872           0 :         spdk_json_write_named_string(w, "hostnqn", qpair->ctrlr->hostnqn);
    2873             : 
    2874           0 :         if (spdk_nvmf_qpair_get_listen_trid(qpair, &trid) == 0) {
    2875           0 :                 spdk_json_write_named_object_begin(w, "listen_address");
    2876           0 :                 nvmf_transport_listen_dump_trid(&trid, w);
    2877           0 :                 spdk_json_write_object_end(w);
    2878           0 :                 if (qpair->transport->ops->listen_dump_opts) {
    2879           0 :                         qpair->transport->ops->listen_dump_opts(qpair->transport, &trid, w);
    2880             :                 }
    2881             :         }
    2882             : 
    2883           0 :         memset(&trid, 0, sizeof(trid));
    2884           0 :         if (spdk_nvmf_qpair_get_peer_trid(qpair, &trid) == 0) {
    2885           0 :                 spdk_json_write_named_object_begin(w, "peer_address");
    2886           0 :                 nvmf_transport_listen_dump_trid(&trid, w);
    2887           0 :                 spdk_json_write_object_end(w);
    2888             :         }
    2889             : 
    2890           0 :         nvmf_qpair_auth_dump(qpair, w);
    2891           0 :         spdk_json_write_object_end(w);
    2892           0 : }
    2893             : 
    2894             : static const char *
    2895           0 : nvme_ana_state_str(enum spdk_nvme_ana_state ana_state)
    2896             : {
    2897           0 :         switch (ana_state) {
    2898           0 :         case SPDK_NVME_ANA_OPTIMIZED_STATE:
    2899           0 :                 return "optimized";
    2900           0 :         case SPDK_NVME_ANA_NON_OPTIMIZED_STATE:
    2901           0 :                 return "non_optimized";
    2902           0 :         case SPDK_NVME_ANA_INACCESSIBLE_STATE:
    2903           0 :                 return "inaccessible";
    2904           0 :         case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE:
    2905           0 :                 return "persistent_loss";
    2906           0 :         case SPDK_NVME_ANA_CHANGE_STATE:
    2907           0 :                 return "change";
    2908           0 :         default:
    2909           0 :                 return NULL;
    2910             :         }
    2911             : }
    2912             : 
    2913             : static void
    2914           0 : dump_nvmf_subsystem_listener(struct spdk_json_write_ctx *w,
    2915             :                              struct spdk_nvmf_subsystem_listener *listener)
    2916             : {
    2917           0 :         const struct spdk_nvme_transport_id *trid = listener->trid;
    2918             :         uint32_t i;
    2919             : 
    2920           0 :         spdk_json_write_object_begin(w);
    2921             : 
    2922           0 :         spdk_json_write_named_object_begin(w, "address");
    2923           0 :         nvmf_transport_listen_dump_trid(trid, w);
    2924           0 :         spdk_json_write_object_end(w);
    2925             : 
    2926           0 :         if (spdk_nvmf_subsystem_get_ana_reporting(listener->subsystem)) {
    2927           0 :                 spdk_json_write_named_array_begin(w, "ana_states");
    2928           0 :                 for (i = 0; i < listener->subsystem->max_nsid; i++) {
    2929           0 :                         spdk_json_write_object_begin(w);
    2930           0 :                         spdk_json_write_named_uint32(w, "ana_group", i + 1);
    2931           0 :                         spdk_json_write_named_string(w, "ana_state",
    2932           0 :                                                      nvme_ana_state_str(listener->ana_state[i]));
    2933           0 :                         spdk_json_write_object_end(w);
    2934             :                 }
    2935           0 :                 spdk_json_write_array_end(w);
    2936             :         }
    2937             : 
    2938           0 :         spdk_json_write_object_end(w);
    2939           0 : }
    2940             : 
    2941             : struct rpc_subsystem_query_ctx {
    2942             :         char *nqn;
    2943             :         char *tgt_name;
    2944             :         struct spdk_nvmf_subsystem *subsystem;
    2945             :         struct spdk_jsonrpc_request *request;
    2946             :         struct spdk_json_write_ctx *w;
    2947             : };
    2948             : 
    2949             : static const struct spdk_json_object_decoder rpc_subsystem_query_decoders[] = {
    2950             :         {"nqn", offsetof(struct rpc_subsystem_query_ctx, nqn), spdk_json_decode_string},
    2951             :         {"tgt_name", offsetof(struct rpc_subsystem_query_ctx, tgt_name), spdk_json_decode_string, true},
    2952             : };
    2953             : 
    2954             : static void
    2955           0 : free_rpc_subsystem_query_ctx(struct rpc_subsystem_query_ctx *ctx)
    2956             : {
    2957           0 :         free(ctx->nqn);
    2958           0 :         free(ctx->tgt_name);
    2959           0 :         free(ctx);
    2960           0 : }
    2961             : 
    2962             : static void
    2963           0 : rpc_nvmf_get_controllers_paused(struct spdk_nvmf_subsystem *subsystem,
    2964             :                                 void *cb_arg, int status)
    2965             : {
    2966           0 :         struct rpc_subsystem_query_ctx *ctx = cb_arg;
    2967             :         struct spdk_json_write_ctx *w;
    2968             :         struct spdk_nvmf_ctrlr *ctrlr;
    2969             : 
    2970           0 :         w = spdk_jsonrpc_begin_result(ctx->request);
    2971             : 
    2972           0 :         spdk_json_write_array_begin(w);
    2973           0 :         TAILQ_FOREACH(ctrlr, &ctx->subsystem->ctrlrs, link) {
    2974           0 :                 dump_nvmf_ctrlr(w, ctrlr);
    2975             :         }
    2976           0 :         spdk_json_write_array_end(w);
    2977             : 
    2978           0 :         spdk_jsonrpc_end_result(ctx->request, w);
    2979             : 
    2980           0 :         if (spdk_nvmf_subsystem_resume(ctx->subsystem, NULL, NULL)) {
    2981           0 :                 SPDK_ERRLOG("Resuming subsystem with NQN %s failed\n", ctx->nqn);
    2982             :                 /* FIXME: RPC should fail if resuming the subsystem failed. */
    2983             :         }
    2984             : 
    2985           0 :         free_rpc_subsystem_query_ctx(ctx);
    2986           0 : }
    2987             : 
    2988             : static void
    2989           0 : rpc_nvmf_get_qpairs_done(struct spdk_io_channel_iter *i, int status)
    2990             : {
    2991           0 :         struct rpc_subsystem_query_ctx *ctx = spdk_io_channel_iter_get_ctx(i);
    2992             : 
    2993           0 :         spdk_json_write_array_end(ctx->w);
    2994           0 :         spdk_jsonrpc_end_result(ctx->request, ctx->w);
    2995             : 
    2996           0 :         if (spdk_nvmf_subsystem_resume(ctx->subsystem, NULL, NULL)) {
    2997           0 :                 SPDK_ERRLOG("Resuming subsystem with NQN %s failed\n", ctx->nqn);
    2998             :                 /* FIXME: RPC should fail if resuming the subsystem failed. */
    2999             :         }
    3000             : 
    3001           0 :         free_rpc_subsystem_query_ctx(ctx);
    3002           0 : }
    3003             : 
    3004             : static void
    3005           0 : rpc_nvmf_get_qpairs(struct spdk_io_channel_iter *i)
    3006             : {
    3007           0 :         struct rpc_subsystem_query_ctx *ctx = spdk_io_channel_iter_get_ctx(i);
    3008             :         struct spdk_io_channel *ch;
    3009             :         struct spdk_nvmf_poll_group *group;
    3010             :         struct spdk_nvmf_qpair *qpair;
    3011             : 
    3012           0 :         ch = spdk_io_channel_iter_get_channel(i);
    3013           0 :         group = spdk_io_channel_get_ctx(ch);
    3014             : 
    3015           0 :         TAILQ_FOREACH(qpair, &group->qpairs, link) {
    3016           0 :                 if (qpair->ctrlr->subsys == ctx->subsystem) {
    3017           0 :                         dump_nvmf_qpair(ctx->w, qpair);
    3018             :                 }
    3019             :         }
    3020             : 
    3021           0 :         spdk_for_each_channel_continue(i, 0);
    3022           0 : }
    3023             : 
    3024             : static void
    3025           0 : rpc_nvmf_get_qpairs_paused(struct spdk_nvmf_subsystem *subsystem,
    3026             :                            void *cb_arg, int status)
    3027             : {
    3028           0 :         struct rpc_subsystem_query_ctx *ctx = cb_arg;
    3029             : 
    3030           0 :         ctx->w = spdk_jsonrpc_begin_result(ctx->request);
    3031             : 
    3032           0 :         spdk_json_write_array_begin(ctx->w);
    3033             : 
    3034           0 :         spdk_for_each_channel(ctx->subsystem->tgt,
    3035             :                               rpc_nvmf_get_qpairs,
    3036             :                               ctx,
    3037             :                               rpc_nvmf_get_qpairs_done);
    3038           0 : }
    3039             : 
    3040             : static void
    3041           0 : rpc_nvmf_get_listeners_paused(struct spdk_nvmf_subsystem *subsystem,
    3042             :                               void *cb_arg, int status)
    3043             : {
    3044           0 :         struct rpc_subsystem_query_ctx *ctx = cb_arg;
    3045             :         struct spdk_json_write_ctx *w;
    3046             :         struct spdk_nvmf_subsystem_listener *listener;
    3047             : 
    3048           0 :         w = spdk_jsonrpc_begin_result(ctx->request);
    3049             : 
    3050           0 :         spdk_json_write_array_begin(w);
    3051             : 
    3052           0 :         for (listener = spdk_nvmf_subsystem_get_first_listener(ctx->subsystem);
    3053           0 :              listener != NULL;
    3054           0 :              listener = spdk_nvmf_subsystem_get_next_listener(ctx->subsystem, listener)) {
    3055           0 :                 dump_nvmf_subsystem_listener(w, listener);
    3056             :         }
    3057           0 :         spdk_json_write_array_end(w);
    3058             : 
    3059           0 :         spdk_jsonrpc_end_result(ctx->request, w);
    3060             : 
    3061           0 :         if (spdk_nvmf_subsystem_resume(ctx->subsystem, NULL, NULL)) {
    3062           0 :                 SPDK_ERRLOG("Resuming subsystem with NQN %s failed\n", ctx->nqn);
    3063             :                 /* FIXME: RPC should fail if resuming the subsystem failed. */
    3064             :         }
    3065             : 
    3066           0 :         free_rpc_subsystem_query_ctx(ctx);
    3067           0 : }
    3068             : 
    3069             : static void
    3070           0 : _rpc_nvmf_subsystem_query(struct spdk_jsonrpc_request *request,
    3071             :                           const struct spdk_json_val *params,
    3072             :                           spdk_nvmf_subsystem_state_change_done cb_fn)
    3073             : {
    3074             :         struct rpc_subsystem_query_ctx *ctx;
    3075             :         struct spdk_nvmf_subsystem *subsystem;
    3076             :         struct spdk_nvmf_tgt *tgt;
    3077             : 
    3078           0 :         ctx = calloc(1, sizeof(*ctx));
    3079           0 :         if (!ctx) {
    3080           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    3081             :                                                  "Out of memory");
    3082           0 :                 return;
    3083             :         }
    3084             : 
    3085           0 :         ctx->request = request;
    3086             : 
    3087           0 :         if (spdk_json_decode_object(params, rpc_subsystem_query_decoders,
    3088             :                                     SPDK_COUNTOF(rpc_subsystem_query_decoders),
    3089             :                                     ctx)) {
    3090           0 :                 SPDK_ERRLOG("spdk_json_decode_object failed\n");
    3091           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    3092             :                                                  "Invalid parameters");
    3093           0 :                 free_rpc_subsystem_query_ctx(ctx);
    3094           0 :                 return;
    3095             :         }
    3096             : 
    3097           0 :         tgt = spdk_nvmf_get_tgt(ctx->tgt_name);
    3098           0 :         if (!tgt) {
    3099           0 :                 SPDK_ERRLOG("Unable to find a target object.\n");
    3100           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    3101             :                                                  "Unable to find a target");
    3102           0 :                 free_rpc_subsystem_query_ctx(ctx);
    3103           0 :                 return;
    3104             :         }
    3105             : 
    3106           0 :         subsystem = spdk_nvmf_tgt_find_subsystem(tgt, ctx->nqn);
    3107           0 :         if (!subsystem) {
    3108           0 :                 SPDK_ERRLOG("Unable to find subsystem with NQN %s\n", ctx->nqn);
    3109           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
    3110             :                                                  "Invalid parameters");
    3111           0 :                 free_rpc_subsystem_query_ctx(ctx);
    3112           0 :                 return;
    3113             :         }
    3114             : 
    3115           0 :         ctx->subsystem = subsystem;
    3116             : 
    3117           0 :         if (spdk_nvmf_subsystem_pause(subsystem, 0, cb_fn, ctx)) {
    3118           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    3119             :                                                  "Internal error");
    3120           0 :                 free_rpc_subsystem_query_ctx(ctx);
    3121           0 :                 return;
    3122             :         }
    3123             : }
    3124             : 
    3125             : static void
    3126           0 : rpc_nvmf_subsystem_get_controllers(struct spdk_jsonrpc_request *request,
    3127             :                                    const struct spdk_json_val *params)
    3128             : {
    3129           0 :         _rpc_nvmf_subsystem_query(request, params, rpc_nvmf_get_controllers_paused);
    3130           0 : }
    3131           0 : SPDK_RPC_REGISTER("nvmf_subsystem_get_controllers", rpc_nvmf_subsystem_get_controllers,
    3132             :                   SPDK_RPC_RUNTIME);
    3133             : 
    3134             : static void
    3135           0 : rpc_nvmf_subsystem_get_qpairs(struct spdk_jsonrpc_request *request,
    3136             :                               const struct spdk_json_val *params)
    3137             : {
    3138           0 :         _rpc_nvmf_subsystem_query(request, params, rpc_nvmf_get_qpairs_paused);
    3139           0 : }
    3140           0 : SPDK_RPC_REGISTER("nvmf_subsystem_get_qpairs", rpc_nvmf_subsystem_get_qpairs, SPDK_RPC_RUNTIME);
    3141             : 
    3142             : static void
    3143           0 : rpc_nvmf_subsystem_get_listeners(struct spdk_jsonrpc_request *request,
    3144             :                                  const struct spdk_json_val *params)
    3145             : {
    3146           0 :         _rpc_nvmf_subsystem_query(request, params, rpc_nvmf_get_listeners_paused);
    3147           0 : }
    3148           0 : SPDK_RPC_REGISTER("nvmf_subsystem_get_listeners", rpc_nvmf_subsystem_get_listeners,
    3149             :                   SPDK_RPC_RUNTIME);
    3150             : 
    3151             : struct rpc_mdns_prr {
    3152             :         char *tgt_name;
    3153             : };
    3154             : 
    3155             : static const struct spdk_json_object_decoder rpc_mdns_prr_decoders[] = {
    3156             :         {"tgt_name", offsetof(struct rpc_mdns_prr, tgt_name), spdk_json_decode_string, true},
    3157             : };
    3158             : 
    3159             : static void
    3160           0 : rpc_nvmf_publish_mdns_prr(struct spdk_jsonrpc_request *request,
    3161             :                           const struct spdk_json_val *params)
    3162             : {
    3163             :         int rc;
    3164           0 :         struct rpc_mdns_prr req = { 0 };
    3165             :         struct spdk_nvmf_tgt *tgt;
    3166             : 
    3167           0 :         if (params) {
    3168           0 :                 if (spdk_json_decode_object(params, rpc_mdns_prr_decoders,
    3169             :                                             SPDK_COUNTOF(rpc_mdns_prr_decoders),
    3170             :                                             &req)) {
    3171           0 :                         SPDK_ERRLOG("spdk_json_decode_object failed\n");
    3172           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    3173           0 :                         return;
    3174             :                 }
    3175             :         }
    3176             : 
    3177           0 :         tgt = spdk_nvmf_get_tgt(req.tgt_name);
    3178           0 :         if (!tgt) {
    3179           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    3180             :                                                  "Unable to find a target.");
    3181           0 :                 free(req.tgt_name);
    3182           0 :                 return;
    3183             :         }
    3184             : 
    3185           0 :         rc = nvmf_publish_mdns_prr(tgt);
    3186           0 :         if (rc) {
    3187           0 :                 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
    3188           0 :                 free(req.tgt_name);
    3189           0 :                 return;
    3190             :         }
    3191             : 
    3192           0 :         spdk_jsonrpc_send_bool_response(request, true);
    3193           0 :         free(req.tgt_name);
    3194             : }
    3195           0 : SPDK_RPC_REGISTER("nvmf_publish_mdns_prr", rpc_nvmf_publish_mdns_prr, SPDK_RPC_RUNTIME);
    3196             : 
    3197             : static void
    3198           0 : rpc_nvmf_stop_mdns_prr(struct spdk_jsonrpc_request *request,
    3199             :                        const struct spdk_json_val *params)
    3200             : {
    3201           0 :         struct rpc_mdns_prr req = { 0 };
    3202             :         struct spdk_nvmf_tgt *tgt;
    3203             : 
    3204           0 :         if (params) {
    3205           0 :                 if (spdk_json_decode_object(params, rpc_mdns_prr_decoders,
    3206             :                                             SPDK_COUNTOF(rpc_mdns_prr_decoders),
    3207             :                                             &req)) {
    3208           0 :                         SPDK_ERRLOG("spdk_json_decode_object failed\n");
    3209           0 :                         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
    3210           0 :                         return;
    3211             :                 }
    3212             :         }
    3213             : 
    3214           0 :         tgt = spdk_nvmf_get_tgt(req.tgt_name);
    3215           0 :         if (!tgt) {
    3216           0 :                 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
    3217             :                                                  "Unable to find a target.");
    3218           0 :                 free(req.tgt_name);
    3219           0 :                 return;
    3220             :         }
    3221             : 
    3222           0 :         nvmf_tgt_stop_mdns_prr(tgt);
    3223             : 
    3224           0 :         spdk_jsonrpc_send_bool_response(request, true);
    3225           0 :         free(req.tgt_name);
    3226             : }
    3227           0 : SPDK_RPC_REGISTER("nvmf_stop_mdns_prr", rpc_nvmf_stop_mdns_prr, SPDK_RPC_RUNTIME);

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