35b3091eba
Linking this new library allows applications using the framework to be killed via an RPC call. This only works if the RPC subsystem is loaded. Change-Id: Ifcf91c212add620fe410589eba5490337c635776 Signed-off-by: Ben Walker <benjamin.walker@intel.com>
116 lines
3.5 KiB
C
116 lines
3.5 KiB
C
/*-
|
|
* 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)
|