1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/**
* Copyright (C) 2008 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/platform/basic.h"
#include "mongo/db/commands/copydb_start_commands.h"
#include "mongo/base/status.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/client/dbclientinterface.h"
#include "mongo/client/sasl_client_authenticate.h"
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/resource_pattern.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/client.h"
#include "mongo/db/cloner.h"
#include "mongo/db/commands.h"
#include "mongo/db/commands/copydb.h"
#include "mongo/db/jsobj.h"
#include "mongo/util/log.h"
namespace mongo {
using std::string;
using std::stringstream;
namespace {
const auto authConnection =
Client::declareDecoration<std::unique_ptr<DBClientBase>>();
} // namespace
std::unique_ptr<DBClientBase>& CopyDbAuthConnection::forClient(Client* client) {
return authConnection(client);
}
/* Usage:
* admindb.$cmd.findOne( { copydbgetnonce: 1, fromhost: <connection string> } );
*
* Run against the mongod that is the intended target for the "copydb" command. Used to get a
* nonce from the source of a "copydb" operation for authentication purposes. See the
* description of the "copydb" command below.
*/
class CmdCopyDbGetNonce : public Command {
public:
CmdCopyDbGetNonce() : Command("copydbgetnonce") { }
virtual bool adminOnly() const {
return true;
}
virtual bool slaveOk() const {
return false;
}
virtual bool isWriteCommandForConfigServer() const { return false; }
virtual void addRequiredPrivileges(const std::string& dbname,
const BSONObj& cmdObj,
std::vector<Privilege>* out) {
// No auth required
}
virtual void help( stringstream &help ) const {
help << "get a nonce for subsequent copy db request from secure server\n";
help << "usage: {copydbgetnonce: 1, fromhost: <hostname>}";
}
virtual bool run(OperationContext* txn,
const string&,
BSONObj& cmdObj,
int,
string& errmsg,
BSONObjBuilder& result) {
string fromhost = cmdObj.getStringField("fromhost");
if ( fromhost.empty() ) {
/* copy from self */
stringstream ss;
ss << "localhost:" << serverGlobalParams.port;
fromhost = ss.str();
}
const ConnectionString cs(uassertStatusOK(ConnectionString::parse(fromhost)));
auto& authConn = CopyDbAuthConnection::forClient(txn->getClient());
authConn.reset(cs.connect(errmsg));
if (!authConn) {
return false;
}
BSONObj ret;
if( !authConn->runCommand( "admin", BSON( "getnonce" << 1 ), ret ) ) {
errmsg = "couldn't get nonce " + ret.toString();
authConn.reset();
return false;
}
result.appendElements( ret );
return true;
}
} cmdCopyDBGetNonce;
/* Usage:
* admindb.$cmd.findOne( { copydbsaslstart: 1,
* fromhost: <connection string>,
* mechanism: <String>,
* payload: <BinaryOrString> } );
*
* Run against the mongod that is the intended target for the "copydb" command. Used to
* initialize a SASL auth session for a "copydb" operation for authentication purposes.
*/
class CmdCopyDbSaslStart : public Command {
public:
CmdCopyDbSaslStart() : Command("copydbsaslstart") { }
virtual bool adminOnly() const {
return true;
}
virtual bool slaveOk() const {
return false;
}
virtual bool isWriteCommandForConfigServer() const { return false; }
virtual Status checkAuthForCommand(ClientBasic* client,
const std::string& dbname,
const BSONObj& cmdObj) {
// No auth required
return Status::OK();
}
virtual void help( stringstream &help ) const {
help << "Initialize a SASL auth session for subsequent copy db request "
"from secure server\n";
}
virtual bool run(OperationContext* txn,
const string&,
BSONObj& cmdObj,
int,
string& errmsg,
BSONObjBuilder& result) {
const string fromDb = cmdObj.getStringField("fromdb");
string fromHost = cmdObj.getStringField("fromhost");
if ( fromHost.empty() ) {
/* copy from self */
stringstream ss;
ss << "localhost:" << serverGlobalParams.port;
fromHost = ss.str();
}
const ConnectionString cs(uassertStatusOK(ConnectionString::parse(fromHost)));
BSONElement mechanismElement;
Status status = bsonExtractField(cmdObj,
saslCommandMechanismFieldName,
&mechanismElement);
if (!status.isOK()) {
return appendCommandStatus(result, status);
}
BSONElement payloadElement;
status = bsonExtractField(cmdObj, saslCommandPayloadFieldName, &payloadElement);
if (!status.isOK()) {
log() << "Failed to extract payload: " << status;
return false;
}
auto& authConn = CopyDbAuthConnection::forClient(txn->getClient());
authConn.reset(cs.connect(errmsg));
if (!authConn.get()) {
return false;
}
BSONObj ret;
if( !authConn->runCommand( fromDb,
BSON( "saslStart" << 1 <<
mechanismElement <<
payloadElement),
ret ) ) {
authConn.reset();
return appendCommandStatus(result,
Command::getStatusFromCommandResult(ret));
}
result.appendElements( ret );
return true;
}
} cmdCopyDBSaslStart;
} // namespace mongo
|