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
|
/*
* Copyright (C) 2021 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.server;
import android.annotation.UserIdInt;
import android.content.ContentResolver;
import android.content.pm.UserInfo;
import android.os.UserHandle;
import android.os.UserManager;
import android.provider.Settings;
import com.android.server.am.ActivityManagerService;
import com.android.server.pm.UserManagerInternal;
import com.android.server.utils.Slogf;
import com.android.server.utils.TimingsTraceAndSlog;
import java.util.List;
/**
* Class responsible for booting the device in the proper user on headless system user mode.
*
*/
// TODO(b/204091126): STOPSHIP - provide proper APIs
final class BootUserInitializer {
private static final String TAG = BootUserInitializer.class.getSimpleName();
// TODO(b/204091126): STOPSHIP - set to false or dynamic value
private static final boolean DEBUG = true;
private final ActivityManagerService mAms;
private final ContentResolver mContentResolver;
BootUserInitializer(ActivityManagerService am, ContentResolver contentResolver) {
mAms = am;
mContentResolver = contentResolver;
}
public void init(TimingsTraceAndSlog t) {
Slogf.i(TAG, "init())");
// TODO(b/204091126): in the long term, we need to decide who's reponsible for that,
// this class or the setup wizard app
provisionHeadlessSystemUser();
UserManagerInternal um = LocalServices.getService(UserManagerInternal.class);
t.traceBegin("get-existing-users");
List<UserInfo> existingUsers = um.getUsers(/* excludeDying= */ true);
t.traceEnd();
Slogf.d(TAG, "%d existing users", existingUsers.size());
int initialUserId = UserHandle.USER_NULL;
for (int i = 0; i < existingUsers.size(); i++) {
UserInfo user = existingUsers.get(i);
if (DEBUG) {
Slogf.d(TAG, "User at position %d: %s", i, user.toFullString());
}
if (user.id != UserHandle.USER_SYSTEM && user.isFull()) {
if (DEBUG) {
Slogf.d(TAG, "Found initial user: %d", user.id);
}
initialUserId = user.id;
break;
}
}
if (initialUserId == UserHandle.USER_NULL) {
Slogf.d(TAG, "Creating initial user");
t.traceBegin("create-initial-user");
try {
// TODO(b/204091126): proper name for user
UserInfo newUser = um.createUserEvenWhenDisallowed("Real User",
UserManager.USER_TYPE_FULL_SECONDARY, UserInfo.FLAG_ADMIN,
/* disallowedPackages= */ null, /* token= */ null);
Slogf.i(TAG, "Created initial user: %s", newUser.toFullString());
initialUserId = newUser.id;
} catch (Exception e) {
Slogf.wtf(TAG, "failed to created initial user", e);
return;
} finally {
t.traceEnd(); // create-initial-user
}
}
unlockSystemUser(t);
switchToInitialUser(initialUserId);
}
private void provisionHeadlessSystemUser() {
if (isDeviceProvisioned()) {
Slogf.d(TAG, "provisionHeadlessSystemUser(): already provisioned");
return;
}
Slogf.i(TAG, "Marking USER_SETUP_COMPLETE for system user");
Settings.Secure.putInt(mContentResolver, Settings.Secure.USER_SETUP_COMPLETE, 1);
Slogf.i(TAG, "Marking DEVICE_PROVISIONED for system user");
Settings.Global.putInt(mContentResolver, Settings.Global.DEVICE_PROVISIONED, 1);
}
private boolean isDeviceProvisioned() {
try {
return Settings.Global.getInt(mContentResolver,
Settings.Global.DEVICE_PROVISIONED) == 1;
} catch (Exception e) {
Slogf.wtf(TAG, "DEVICE_PROVISIONED setting not found.", e);
return false;
}
}
// NOTE: Mostly copied from Automotive's InitialUserSetter
private void unlockSystemUser(TimingsTraceAndSlog t) {
Slogf.i(TAG, "Unlocking system user");
t.traceBegin("unlock-system-user");
try {
// This is for force changing state into RUNNING_LOCKED. Otherwise unlock does not
// update the state and USER_SYSTEM unlock happens twice.
t.traceBegin("am.startUser");
boolean started = mAms.startUserInBackgroundWithListener(UserHandle.USER_SYSTEM,
/* listener= */ null);
t.traceEnd();
if (!started) {
Slogf.w(TAG, "could not restart system user in background; trying unlock instead");
t.traceBegin("am.unlockUser");
boolean unlocked = mAms.unlockUser(UserHandle.USER_SYSTEM, /* token= */ null,
/* secret= */ null, /* listener= */ null);
t.traceEnd();
if (!unlocked) {
Slogf.w(TAG, "could not unlock system user either");
return;
}
}
} finally {
t.traceEnd();
}
}
private void switchToInitialUser(@UserIdInt int initialUserId) {
Slogf.i(TAG, "Switching to initial user %d", initialUserId);
boolean started = mAms.startUserInForegroundWithListener(initialUserId,
/* unlockListener= */ null);
if (!started) {
Slogf.wtf(TAG, "Failed to start user %d in foreground", initialUserId);
}
}
}
|
