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/**
* Copyright (C) 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kCommand
#include "mongo/platform/basic.h"
#include <limits>
#include "mongo/base/init.h"
#include "mongo/base/status.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/db/audit.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/client.h"
#include "mongo/db/commands.h"
#include "mongo/db/service_context.h"
#include "mongo/util/log.h"
#include "mongo/util/mongoutils/str.h"
namespace mongo {
class KillOpCommand : public Command {
public:
KillOpCommand() : Command("killOp") {}
bool slaveOk() const final {
return true;
}
bool adminOnly() const final {
return true;
}
Status checkAuthForCommand(ClientBasic* client,
const std::string& dbname,
const BSONObj& cmdObj) final {
bool isAuthorized = AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
ResourcePattern::forClusterResource(), ActionType::killop);
return isAuthorized ? Status::OK() : Status(ErrorCodes::Unauthorized, "Unauthorized");
}
bool run(OperationContext* txn,
const std::string& db,
BSONObj& cmdObj,
int options,
std::string& errmsg,
BSONObjBuilder& result) final {
long long op;
uassertStatusOK(bsonExtractIntegerField(cmdObj, "op", &op));
log() << "going to kill op: " << op;
result.append("info", "attempting to kill op");
// Internally opid is an unsigned 32-bit int, but as BSON only has signed integer types,
// we wrap values exceeding 2,147,483,647 to negative numbers. The following undoes this
// transformation, so users can use killOp on the (negative) opid they received.
if (op >= std::numeric_limits<int>::min() && op < 0)
op += 1ull << 32;
uassert(26823,
str::stream() << "invalid op : " << op,
(op >= 0) && (op <= std::numeric_limits<unsigned int>::max()));
getGlobalServiceContext()->killOperation(static_cast<unsigned int>(op));
return true;
}
} killOpCmd;
} // namespace mongo
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