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/*
* Copyright (C) 2013 10gen 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::kAccessControl
#include "mongo/db/auth/sasl_options.h"
#include "mongo/base/status.h"
#include "mongo/db/server_parameters.h"
#include "mongo/util/log.h"
#include "mongo/util/mongoutils/str.h"
#include "mongo/util/options_parser/startup_option_init.h"
#include "mongo/util/options_parser/startup_options.h"
namespace mongo {
SASLGlobalParams saslGlobalParams;
const int defaultScramIterationCount = 10000;
const int minimumScramIterationCount = 5000;
SASLGlobalParams::SASLGlobalParams() {
// Authentication mechanisms supported by default.
authenticationMechanisms.push_back("MONGODB-CR");
authenticationMechanisms.push_back("MONGODB-X509");
authenticationMechanisms.push_back("SCRAM-SHA-1");
// Default iteration count for SCRAM authentication.
scramIterationCount = defaultScramIterationCount;
}
Status addSASLOptions(moe::OptionSection* options) {
moe::OptionSection saslOptions("SASL Options");
saslOptions.addOptionChaining("security.authenticationMechanisms",
"",
moe::StringVector,
"List of supported authentication mechanisms. "
"Default is MONGODB-CR, SCRAM-SHA-1 and MONGODB-X509.")
.setSources(moe::SourceYAMLConfig);
saslOptions.addOptionChaining(
"security.sasl.hostName", "", moe::String, "Fully qualified server domain name")
.setSources(moe::SourceYAMLConfig);
saslOptions.addOptionChaining("security.sasl.serviceName",
"",
moe::String,
"Registered name of the service using SASL")
.setSources(moe::SourceYAMLConfig);
saslOptions.addOptionChaining("security.sasl.saslauthdSocketPath",
"",
moe::String,
"Path to Unix domain socket file for saslauthd")
.setSources(moe::SourceYAMLConfig);
Status ret = options->addSection(saslOptions);
if (!ret.isOK()) {
log() << "Failed to add sasl option section: " << ret.toString();
return ret;
}
return Status::OK();
}
Status storeSASLOptions(const moe::Environment& params) {
bool haveAuthenticationMechanisms = false;
bool haveHostName = false;
bool haveServiceName = false;
bool haveAuthdPath = false;
bool haveScramIterationCount = false;
// Check our setParameter options first so that these values can be properly overridden via
// the command line even though the options have different names.
if (params.count("setParameter")) {
std::map<std::string, std::string> parameters =
params["setParameter"].as<std::map<std::string, std::string>>();
for (std::map<std::string, std::string>::iterator parametersIt = parameters.begin();
parametersIt != parameters.end();
parametersIt++) {
if (parametersIt->first == "authenticationMechanisms") {
haveAuthenticationMechanisms = true;
} else if (parametersIt->first == "saslHostName") {
haveHostName = true;
} else if (parametersIt->first == "saslServiceName") {
haveServiceName = true;
} else if (parametersIt->first == "saslauthdPath") {
haveAuthdPath = true;
} else if (parametersIt->first == "scramIterationCount") {
haveScramIterationCount = true;
}
}
}
if (params.count("security.authenticationMechanisms") && !haveAuthenticationMechanisms) {
saslGlobalParams.authenticationMechanisms =
params["security.authenticationMechanisms"].as<std::vector<std::string>>();
}
if (params.count("security.sasl.hostName") && !haveHostName) {
saslGlobalParams.hostName = params["security.sasl.hostName"].as<std::string>();
}
if (params.count("security.sasl.serviceName") && !haveServiceName) {
saslGlobalParams.serviceName = params["security.sasl.serviceName"].as<std::string>();
}
if (params.count("security.sasl.saslauthdSocketPath") && !haveAuthdPath) {
saslGlobalParams.authdPath = params["security.sasl.saslauthdSocketPath"].as<std::string>();
}
if (params.count("security.sasl.scramIterationCount") && !haveScramIterationCount) {
saslGlobalParams.scramIterationCount =
params["security.sasl.scramIterationCount"].as<int>();
}
return Status::OK();
}
MONGO_MODULE_STARTUP_OPTIONS_REGISTER(SASLOptions)(InitializerContext* context) {
return addSASLOptions(&moe::startupOptions);
}
MONGO_STARTUP_OPTIONS_STORE(SASLOptions)(InitializerContext* context) {
return storeSASLOptions(moe::startupOptionsParsed);
}
// SASL Startup Parameters, making them settable via setParameter on the command line or in the
// legacy INI config file. None of these parameters are modifiable at runtime.
ExportedServerParameter<std::vector<std::string>> SASLAuthenticationMechanismsSetting(
ServerParameterSet::getGlobal(),
"authenticationMechanisms",
&saslGlobalParams.authenticationMechanisms,
true, // Change at startup
false); // Change at runtime
ExportedServerParameter<std::string> SASLHostNameSetting(ServerParameterSet::getGlobal(),
"saslHostName",
&saslGlobalParams.hostName,
true, // Change at startup
false); // Change at runtime
ExportedServerParameter<std::string> SASLServiceNameSetting(ServerParameterSet::getGlobal(),
"saslServiceName",
&saslGlobalParams.serviceName,
true, // Change at startup
false); // Change at runtime
ExportedServerParameter<std::string> SASLAuthdPathSetting(ServerParameterSet::getGlobal(),
"saslauthdPath",
&saslGlobalParams.authdPath,
true, // Change at startup
false); // Change at runtime
const std::string scramIterationCountServerParameter = "scramIterationCount";
class ExportedScramIterationCountParameter : public ExportedServerParameter<int> {
public:
ExportedScramIterationCountParameter()
: ExportedServerParameter<int>(ServerParameterSet::getGlobal(),
scramIterationCountServerParameter,
&saslGlobalParams.scramIterationCount,
true, // Change at startup
true) {} // Change at runtime
virtual Status validate(const int& newValue) {
if (newValue < minimumScramIterationCount) {
return Status(ErrorCodes::BadValue,
mongoutils::str::stream()
<< "Invalid value for SCRAM iteration count: " << newValue
<< " is less than the minimum SCRAM iteration count, "
<< minimumScramIterationCount);
}
return Status::OK();
}
} scramIterationCountParam;
} // namespace mongo
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