100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
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/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "spdk/rpc.h"
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#include "spdk/util.h"
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#include <linux/nbd.h>
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#include "nbd_internal.h"
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#include "spdk_internal/log.h"
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struct rpc_stop_nbd_disk {
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char *nbd_device;
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};
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static void
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free_rpc_stop_nbd_disk(struct rpc_stop_nbd_disk *req)
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{
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free(req->nbd_device);
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}
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static const struct spdk_json_object_decoder rpc_stop_nbd_disk_decoders[] = {
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{"nbd_device", offsetof(struct rpc_stop_nbd_disk, nbd_device), spdk_json_decode_string},
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};
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static void
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spdk_rpc_stop_nbd_disk(struct spdk_jsonrpc_request *request,
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const struct spdk_json_val *params)
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{
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struct rpc_stop_nbd_disk req = {};
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struct spdk_json_write_ctx *w;
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struct spdk_nbd_disk *nbd;
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if (spdk_json_decode_object(params, rpc_stop_nbd_disk_decoders,
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SPDK_COUNTOF(rpc_stop_nbd_disk_decoders),
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&req)) {
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SPDK_ERRLOG("spdk_json_decode_object failed\n");
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goto invalid;
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}
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if (req.nbd_device == NULL) {
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goto invalid;
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}
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/* make sure nbd_device is registered */
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nbd = spdk_nbd_disk_find_by_nbd_path(req.nbd_device);
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if (!nbd) {
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goto invalid;
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}
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nbd_disconnect(nbd);
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free_rpc_stop_nbd_disk(&req);
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w = spdk_jsonrpc_begin_result(request);
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if (w == NULL) {
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return;
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}
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spdk_json_write_bool(w, true);
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spdk_jsonrpc_end_result(request, w);
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return;
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invalid:
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free_rpc_stop_nbd_disk(&req);
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spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
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}
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SPDK_RPC_REGISTER("stop_nbd_disk", spdk_rpc_stop_nbd_disk)
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