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More device admin.

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- Clean up device policy manager APIs.
- Implement lockNow().  For now this just turns the screen off to lock the device.
This commit is contained in:
Dianne Hackborn
2010-01-27 19:23:59 -08:00
parent 2fd75f3515
commit 254cb446fa
10 changed files with 202 additions and 79 deletions
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116
services/java/com/android/server/DevicePolicyManagerService.java
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@@ -41,8 +41,10 @@ import android.os.RecoverySystem;
import android.os.RemoteCallback;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.util.Log;
import android.util.Xml;
import android.view.WindowManagerPolicy;
import java.io.File;
import java.io.FileInputStream;
@@ -161,30 +163,35 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
return null;
}
ActiveAdmin getActiveAdminForCallerLocked(ComponentName who)
throws SecurityException {
ActiveAdmin admin = mAdminMap.get(who);
if (admin != null && admin.getUid() == Binder.getCallingUid()) {
if (who != null) {
if (!who.getPackageName().equals(admin.info.getActivityInfo().packageName)
|| !who.getClassName().equals(admin.info.getActivityInfo().name)) {
throw new SecurityException("Current admin is not " + who);
}
}
return admin;
}
throw new SecurityException("Current admin is not owned by uid " + Binder.getCallingUid());
}
ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy)
throws SecurityException {
ActiveAdmin admin = getActiveAdminForCallerLocked(who);
if (!admin.info.usesPolicy(reqPolicy)) {
throw new SecurityException("Admin " + admin.info.getComponent()
+ " did not specify uses-policy for: "
+ admin.info.getTagForPolicy(reqPolicy));
final int callingUid = Binder.getCallingUid();
if (who != null) {
ActiveAdmin admin = mAdminMap.get(who);
if (admin == null) {
throw new SecurityException("No active admin " + who);
}
if (admin.getUid() != callingUid) {
throw new SecurityException("Admin " + who + " is not owned by uid "
+ Binder.getCallingUid());
}
if (!admin.info.usesPolicy(reqPolicy)) {
throw new SecurityException("Admin " + admin.info.getComponent()
+ " did not specify uses-policy for: "
+ admin.info.getTagForPolicy(reqPolicy));
}
return admin;
} else {
final int N = mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = mAdminList.get(i);
if (admin.getUid() == callingUid && admin.info.usesPolicy(reqPolicy)) {
return admin;
}
}
throw new SecurityException("No active admin owned by uid "
+ Binder.getCallingUid() + " for policy #" + reqPolicy);
}
return admin;
}
void sendAdminCommandLocked(ActiveAdmin admin, String action) {
@@ -346,7 +353,7 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
// Ignore
}
long timeMs = getMaximumTimeToLock();
long timeMs = getMaximumTimeToLock(null);
if (timeMs <= 0) {
timeMs = Integer.MAX_VALUE;
}
@@ -355,7 +362,6 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
} catch (RemoteException e) {
Log.w(TAG, "Failure talking with power manager", e);
}
}
public void systemReady() {
@@ -443,10 +449,16 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
}
}
public int getPasswordMode() {
public int getPasswordMode(ComponentName who) {
synchronized (this) {
final int N = mAdminList.size();
int mode = DevicePolicyManager.PASSWORD_MODE_UNSPECIFIED;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who);
return admin != null ? admin.passwordMode : mode;
}
final int N = mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = mAdminList.get(i);
if (mode < admin.passwordMode) {
@@ -457,7 +469,7 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
}
}
public void setMinimumPasswordLength(ComponentName who, int length) {
public void setPasswordMinimumLength(ComponentName who, int length) {
synchronized (this) {
if (who == null) {
throw new NullPointerException("ComponentName is null");
@@ -471,10 +483,16 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
}
}
public int getMinimumPasswordLength() {
public int getPasswordMinimumLength(ComponentName who) {
synchronized (this) {
final int N = mAdminList.size();
int length = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who);
return admin != null ? admin.minimumPasswordLength : length;
}
final int N = mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = mAdminList.get(i);
if (length < admin.minimumPasswordLength) {
@@ -491,8 +509,8 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
// so try to retrieve it to check that the caller is one.
getActiveAdminForCallerLocked(null,
DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD);
return mActivePasswordMode >= getPasswordMode()
&& mActivePasswordLength >= getMinimumPasswordLength();
return mActivePasswordMode >= getPasswordMode(null)
&& mActivePasswordLength >= getPasswordMinimumLength(null);
}
}
@@ -521,10 +539,16 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
}
}
public int getMaximumFailedPasswordsForWipe() {
public int getMaximumFailedPasswordsForWipe(ComponentName who) {
synchronized (this) {
final int N = mAdminList.size();
int count = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who);
return admin != null ? admin.maximumFailedPasswordsForWipe : count;
}
final int N = mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = mAdminList.get(i);
if (count == 0) {
@@ -545,8 +569,8 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
// so try to retrieve it to check that the caller is one.
getActiveAdminForCallerLocked(null,
DeviceAdminInfo.USES_POLICY_RESET_PASSWORD);
mode = getPasswordMode();
if (password.length() < getMinimumPasswordLength()) {
mode = getPasswordMode(null);
if (password.length() < getPasswordMinimumLength(null)) {
return false;
}
}
@@ -577,9 +601,12 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
long ident = Binder.clearCallingIdentity();
try {
saveSettingsLocked();
timeMs = getMaximumTimeToLock(null);
if (timeMs <= 0) {
timeMs = Integer.MAX_VALUE;
}
try {
getIPowerManager().setMaximumScreenOffTimeount((int)timeMs);
} catch (RemoteException e) {
@@ -592,10 +619,16 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
}
}
public long getMaximumTimeToLock() {
public long getMaximumTimeToLock(ComponentName who) {
synchronized (this) {
final int N = mAdminList.size();
long time = 0;
if (who != null) {
ActiveAdmin admin = getActiveAdminUncheckedLocked(who);
return admin != null ? admin.maximumTimeToUnlock : time;
}
final int N = mAdminList.size();
for (int i=0; i<N; i++) {
ActiveAdmin admin = mAdminList.get(i);
if (time == 0) {
@@ -615,7 +648,14 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
// so try to retrieve it to check that the caller is one.
getActiveAdminForCallerLocked(null,
DeviceAdminInfo.USES_POLICY_FORCE_LOCK);
// STOPSHIP need to implement.
long ident = Binder.clearCallingIdentity();
try {
mIPowerManager.goToSleepWithReason(SystemClock.uptimeMillis(),
WindowManagerPolicy.OFF_BECAUSE_OF_ADMIN);
} catch (RemoteException e) {
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@@ -702,7 +742,7 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
try {
mFailedPasswordAttempts++;
saveSettingsLocked();
int max = getMaximumFailedPasswordsForWipe();
int max = getMaximumFailedPasswordsForWipe(null);
if (max > 0 && mFailedPasswordAttempts >= max) {
wipeDataLocked(0);
}