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
|
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.internal.net;
import android.os.Parcel;
import android.os.Parcelable;
import android.text.TextUtils;
import android.util.Log;
import java.net.InetAddress;
import java.nio.charset.StandardCharsets;
/**
* Parcel-like entity class for VPN profiles. To keep things simple, all
* fields are package private. Methods are provided for serialization, so
* storage can be implemented easily. Two rules are set for this class.
* First, all fields must be kept non-null. Second, always make a copy
* using clone() before modifying.
*
* @hide
*/
public class VpnProfile implements Cloneable, Parcelable {
private static final String TAG = "VpnProfile";
// Match these constants with R.array.vpn_types.
public static final int TYPE_PPTP = 0;
public static final int TYPE_L2TP_IPSEC_PSK = 1;
public static final int TYPE_L2TP_IPSEC_RSA = 2;
public static final int TYPE_IPSEC_XAUTH_PSK = 3;
public static final int TYPE_IPSEC_XAUTH_RSA = 4;
public static final int TYPE_IPSEC_HYBRID_RSA = 5;
public static final int TYPE_MAX = 5;
// Entity fields.
public final String key; // -1
public String name = ""; // 0
public int type = TYPE_PPTP; // 1
public String server = ""; // 2
public String username = ""; // 3
public String password = ""; // 4
public String dnsServers = ""; // 5
public String searchDomains = ""; // 6
public String routes = ""; // 7
public boolean mppe = true; // 8
public String l2tpSecret = ""; // 9
public String ipsecIdentifier = "";// 10
public String ipsecSecret = ""; // 11
public String ipsecUserCert = ""; // 12
public String ipsecCaCert = ""; // 13
public String ipsecServerCert = "";// 14
// Helper fields.
public boolean saveLogin = false;
public VpnProfile(String key) {
this.key = key;
}
public VpnProfile(Parcel in) {
key = in.readString();
name = in.readString();
type = in.readInt();
server = in.readString();
username = in.readString();
password = in.readString();
dnsServers = in.readString();
searchDomains = in.readString();
routes = in.readString();
mppe = in.readInt() != 0;
l2tpSecret = in.readString();
ipsecIdentifier = in.readString();
ipsecSecret = in.readString();
ipsecUserCert = in.readString();
ipsecCaCert = in.readString();
ipsecServerCert = in.readString();
saveLogin = in.readInt() != 0;
}
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeString(key);
out.writeString(name);
out.writeInt(type);
out.writeString(server);
out.writeString(username);
out.writeString(password);
out.writeString(dnsServers);
out.writeString(searchDomains);
out.writeString(routes);
out.writeInt(mppe ? 1 : 0);
out.writeString(l2tpSecret);
out.writeString(ipsecIdentifier);
out.writeString(ipsecSecret);
out.writeString(ipsecUserCert);
out.writeString(ipsecCaCert);
out.writeString(ipsecServerCert);
out.writeInt(saveLogin ? 1 : 0);
}
public static VpnProfile decode(String key, byte[] value) {
try {
if (key == null) {
return null;
}
String[] values = new String(value, StandardCharsets.UTF_8).split("\0", -1);
// There can be 14 or 15 values in ICS MR1.
if (values.length < 14 || values.length > 15) {
return null;
}
VpnProfile profile = new VpnProfile(key);
profile.name = values[0];
profile.type = Integer.valueOf(values[1]);
if (profile.type < 0 || profile.type > TYPE_MAX) {
return null;
}
profile.server = values[2];
profile.username = values[3];
profile.password = values[4];
profile.dnsServers = values[5];
profile.searchDomains = values[6];
profile.routes = values[7];
profile.mppe = Boolean.valueOf(values[8]);
profile.l2tpSecret = values[9];
profile.ipsecIdentifier = values[10];
profile.ipsecSecret = values[11];
profile.ipsecUserCert = values[12];
profile.ipsecCaCert = values[13];
profile.ipsecServerCert = (values.length > 14) ? values[14] : "";
profile.saveLogin = !profile.username.isEmpty() || !profile.password.isEmpty();
return profile;
} catch (Exception e) {
// ignore
}
return null;
}
public byte[] encode() {
StringBuilder builder = new StringBuilder(name);
builder.append('\0').append(type);
builder.append('\0').append(server);
builder.append('\0').append(saveLogin ? username : "");
builder.append('\0').append(saveLogin ? password : "");
builder.append('\0').append(dnsServers);
builder.append('\0').append(searchDomains);
builder.append('\0').append(routes);
builder.append('\0').append(mppe);
builder.append('\0').append(l2tpSecret);
builder.append('\0').append(ipsecIdentifier);
builder.append('\0').append(ipsecSecret);
builder.append('\0').append(ipsecUserCert);
builder.append('\0').append(ipsecCaCert);
builder.append('\0').append(ipsecServerCert);
return builder.toString().getBytes(StandardCharsets.UTF_8);
}
/**
* Test if profile is valid for lockdown, which requires IPv4 address for
* both server and DNS. Server hostnames would require using DNS before
* connection.
*/
public boolean isValidLockdownProfile() {
try {
InetAddress.parseNumericAddress(server);
for (String dnsServer : dnsServers.split(" +")) {
InetAddress.parseNumericAddress(this.dnsServers);
}
if (TextUtils.isEmpty(dnsServers)) {
Log.w(TAG, "DNS required");
return false;
}
// Everything checked out above
return true;
} catch (IllegalArgumentException e) {
Log.w(TAG, "Invalid address", e);
return false;
}
}
public static final Creator<VpnProfile> CREATOR = new Creator<VpnProfile>() {
@Override
public VpnProfile createFromParcel(Parcel in) {
return new VpnProfile(in);
}
@Override
public VpnProfile[] newArray(int size) {
return new VpnProfile[size];
}
};
@Override
public int describeContents() {
return 0;
}
}
|
