text: /*-
   *   BSD LICENSE
   *
   *   Copyright (c) Intel Corporation.
   *   All rights reserved.
   *
   *   Redistribution and use in source and binary forms, with or without
   *   modification, are permitted provided that the following conditions
   *   are met:
   *
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above copyright
   *       notice, this list of conditions and the following disclaimer in
   *       the documentation and/or other materials provided with the
   *       distribution.
   *     * Neither the name of Intel Corporation nor the names of its
   *       contributors may be used to endorse or promote products derived
   *       from this software without specific prior written permission.
   *
   *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "spdk/stdinc.h"
  
  #include "bdev_nvme.h"
  
  #include "spdk/string.h"
  #include "spdk/rpc.h"
  #include "spdk/util.h"
  #include "spdk/nvme.h"
  
  #include "spdk/log.h"
  
  struct rpc_nvme_cuse_register {
  	char *name;
  };
  
  static void
  free_rpc_nvme_cuse_register(struct rpc_nvme_cuse_register *req)
  {
  	free(req->name);
  }
  
  static const struct spdk_json_object_decoder rpc_nvme_cuse_register_decoders[] = {
  	{"name", offsetof(struct rpc_nvme_cuse_register, name), spdk_json_decode_string},
  };
  
  static void
  rpc_nvme_cuse_register(struct spdk_jsonrpc_request *request,
  		       const struct spdk_json_val *params)
  {
  	struct rpc_nvme_cuse_register req = {};
  	struct spdk_json_write_ctx *w;
  	struct nvme_bdev_ctrlr *bdev_ctrlr = NULL;
  	int rc;
  
  	if (spdk_json_decode_object(params, rpc_nvme_cuse_register_decoders,
  				    SPDK_COUNTOF(rpc_nvme_cuse_register_decoders),
  				    &req)) {
  		SPDK_ERRLOG("spdk_json_decode_object failed\n");
  		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
  						 "spdk_json_decode_object failed");
  		goto cleanup;
  	}
  
  	bdev_ctrlr = nvme_bdev_ctrlr_get_by_name(req.name);
  	if (!bdev_ctrlr) {
  		SPDK_ERRLOG("No such controller\n");
  		spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
  		goto cleanup;
  	}
  
  	rc = spdk_nvme_cuse_register(bdev_ctrlr->ctrlr);
  	if (rc) {
  		SPDK_ERRLOG("Failed to register CUSE devices: %s\n", spdk_strerror(-rc));
  		spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
  		goto cleanup;
  	}
  
  	w = spdk_jsonrpc_begin_result(request);
  	spdk_json_write_bool(w, true);
  	spdk_jsonrpc_end_result(request, w);
  
  cleanup:
  	free_rpc_nvme_cuse_register(&req);
  }
  SPDK_RPC_REGISTER("bdev_nvme_cuse_register", rpc_nvme_cuse_register, SPDK_RPC_RUNTIME)
  
  struct rpc_nvme_cuse_unregister {
  	char *name;
  };
  
  static void
  free_rpc_nvme_cuse_unregister(struct rpc_nvme_cuse_unregister *req)
  {
  	free(req->name);
  }
  
  static const struct spdk_json_object_decoder rpc_nvme_cuse_unregister_decoders[] = {
  	{"name", offsetof(struct rpc_nvme_cuse_unregister, name), spdk_json_decode_string, true},
  };
  
  static void
  rpc_nvme_cuse_unregister(struct spdk_jsonrpc_request *request,
  			 const struct spdk_json_val *params)
  {
  	struct rpc_nvme_cuse_unregister req = {};
  	struct spdk_json_write_ctx *w;
  	struct nvme_bdev_ctrlr *bdev_ctrlr = NULL;
  	int rc;
  
  	if (spdk_json_decode_object(params, rpc_nvme_cuse_unregister_decoders,
  				    SPDK_COUNTOF(rpc_nvme_cuse_unregister_decoders),
  				    &req)) {
  		SPDK_ERRLOG("spdk_json_decode_object failed\n");
  		spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
  						 "spdk_json_decode_object failed");
  		goto cleanup;
  	}
  
  	bdev_ctrlr = nvme_bdev_ctrlr_get_by_name(req.name);
  	if (!bdev_ctrlr) {
  		SPDK_ERRLOG("No such controller\n");
  		spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV));
  		goto cleanup;
  	}
  
  	rc = spdk_nvme_cuse_unregister(bdev_ctrlr->ctrlr);
  	if (rc) {
  		spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
  		goto cleanup;
  	}
  
  	w = spdk_jsonrpc_begin_result(request);
  	spdk_json_write_bool(w, true);
  	spdk_jsonrpc_end_result(request, w);
  
  cleanup:
  	free_rpc_nvme_cuse_unregister(&req);
  }
  SPDK_RPC_REGISTER("bdev_nvme_cuse_unregister", rpc_nvme_cuse_unregister, SPDK_RPC_RUNTIME)
  