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 <sys/types.h>
  #include <signal.h>
  #include <stdint.h>
  #include <string.h>
  #include <unistd.h>
  
  #include "spdk/log.h"
  #include "spdk/rpc.h"
  
  struct rpc_kill_instance {
  	char *sig_name;
  };
  
  static void
  free_rpc_kill_instance(struct rpc_kill_instance *req)
  {
  	free(req->sig_name);
  }
  
  static const struct spdk_json_object_decoder rpc_kill_instance_decoders[] = {
  	{"sig_name", offsetof(struct rpc_kill_instance, sig_name), spdk_json_decode_string},
  };
  
  static void
  spdk_rpc_kill_instance(struct spdk_jsonrpc_server_conn *conn,
  		       const struct spdk_json_val *params,
  		       const struct spdk_json_val *id)
  {
  	static const struct {
  		const char	*signal_string;
  		int32_t		signal;
  	} signals[] = {
  		{"SIGINT",	SIGINT},
  		{"SIGTERM",	SIGTERM},
  		{"SIGQUIT",	SIGQUIT},
  		{"SIGHUP",	SIGHUP},
  		{"SIGKILL",	SIGKILL},
  	};
  	size_t i, sig_count;
  	int signal;
  	struct rpc_kill_instance req = {};
  	struct spdk_json_write_ctx *w;
  
  	if (spdk_json_decode_object(params, rpc_kill_instance_decoders,
  				    sizeof(rpc_kill_instance_decoders) / sizeof(*rpc_kill_instance_decoders),
  				    &req)) {
  		SPDK_TRACELOG(SPDK_TRACE_DEBUG, "spdk_json_decode_object failed\n");
  		goto invalid;
  	}
  
  	sig_count = sizeof(signals) / sizeof(*signals);
  	signal = atoi(req.sig_name);
  	for (i = 0 ; i < sig_count; i++) {
  		if (strcmp(req.sig_name, signals[i].signal_string) == 0 ||
  		    signal == signals[i].signal) {
  			break;
  		}
  	}
  
  	if (i == sig_count) {
  		goto invalid;
  	}
  
  	SPDK_TRACELOG(SPDK_TRACE_DEBUG, "sending signal %d\n", signals[i].signal);
  	kill(getpid(), signals[i].signal);
  	free_rpc_kill_instance(&req);
  
  	if (id == NULL) {
  		return;
  	}
  
  	w = spdk_jsonrpc_begin_result(conn, id);
  	spdk_json_write_bool(w, true);
  	spdk_jsonrpc_end_result(conn, w);
  	return;
  
  invalid:
  	spdk_jsonrpc_send_error_response(conn, id, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
  	free_rpc_kill_instance(&req);
  }
  SPDK_RPC_REGISTER("kill_instance", spdk_rpc_kill_instance)
  