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Add mechanism for Parcel to not allow FDs to be written to it.

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This is to help implement issue #5224703.

Change-Id: I026a5890495537d15b57fe61227a640aac806d46
This commit is contained in:
Dianne Hackborn
2011-09-28 23:19:47 -04:00
parent 8ebf1efd66
commit 9ecebbfbf7
14 changed files with 134 additions and 33 deletions
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7
core/java/android/app/Activity.java
View File

@@ -3246,6 +3246,7 @@ public class Activity extends ContextThemeWrapper
try {
String resolvedType = null;
if (fillInIntent != null) {
fillInIntent.setAllowFds(false);
resolvedType = fillInIntent.resolveTypeIfNeeded(getContentResolver());
}
int result = ActivityManagerNative.getDefault()
@@ -3370,6 +3371,7 @@ public class Activity extends ContextThemeWrapper
if (mParent == null) {
int result = IActivityManager.START_RETURN_INTENT_TO_CALLER;
try {
intent.setAllowFds(false);
result = ActivityManagerNative.getDefault()
.startActivity(mMainThread.getApplicationThread(),
intent, intent.resolveTypeIfNeeded(
@@ -3419,6 +3421,7 @@ public class Activity extends ContextThemeWrapper
public boolean startNextMatchingActivity(Intent intent) {
if (mParent == null) {
try {
intent.setAllowFds(false);
return ActivityManagerNative.getDefault()
.startNextMatchingActivity(mToken, intent);
} catch (RemoteException e) {
@@ -3692,6 +3695,9 @@ public class Activity extends ContextThemeWrapper
}
if (false) Log.v(TAG, "Finishing self: token=" + mToken);
try {
if (resultData != null) {
resultData.setAllowFds(false);
}
if (ActivityManagerNative.getDefault()
.finishActivity(mToken, resultCode, resultData)) {
mFinished = true;
@@ -3812,6 +3818,7 @@ public class Activity extends ContextThemeWrapper
int flags) {
String packageName = getPackageName();
try {
data.setAllowFds(false);
IIntentSender target =
ActivityManagerNative.getDefault().getIntentSender(
IActivityManager.INTENT_SENDER_ACTIVITY_RESULT, packageName,

3
core/java/android/app/ActivityThread.java
View File

@@ -2674,6 +2674,7 @@ public final class ActivityThread {
// Next have the activity save its current state and managed dialogs...
if (!r.activity.mFinished && saveState) {
state = new Bundle();
state.setAllowFds(false);
mInstrumentation.callActivityOnSaveInstanceState(r.activity, state);
r.state = state;
}
@@ -2775,6 +2776,7 @@ public final class ActivityThread {
if (!r.activity.mFinished && saveState) {
if (r.state == null) {
state = new Bundle();
state.setAllowFds(false);
mInstrumentation.callActivityOnSaveInstanceState(r.activity, state);
r.state = state;
} else {
@@ -3306,6 +3308,7 @@ public final class ActivityThread {
}
if (r.state == null && !r.stopped && !r.isPreHoneycomb()) {
r.state = new Bundle();
r.state.setAllowFds(false);
mInstrumentation.callActivityOnSaveInstanceState(r.activity, r.state);
}

14
core/java/android/app/ContextImpl.java
View File

@@ -874,6 +874,7 @@ class ContextImpl extends Context {
try {
String resolvedType = null;
if (fillInIntent != null) {
fillInIntent.setAllowFds(false);
resolvedType = fillInIntent.resolveTypeIfNeeded(getContentResolver());
}
int result = ActivityManagerNative.getDefault()
@@ -892,6 +893,7 @@ class ContextImpl extends Context {
public void sendBroadcast(Intent intent) {
String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
try {
intent.setAllowFds(false);
ActivityManagerNative.getDefault().broadcastIntent(
mMainThread.getApplicationThread(), intent, resolvedType, null,
Activity.RESULT_OK, null, null, null, false, false);
@@ -903,6 +905,7 @@ class ContextImpl extends Context {
public void sendBroadcast(Intent intent, String receiverPermission) {
String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
try {
intent.setAllowFds(false);
ActivityManagerNative.getDefault().broadcastIntent(
mMainThread.getApplicationThread(), intent, resolvedType, null,
Activity.RESULT_OK, null, null, receiverPermission, false, false);
@@ -915,6 +918,7 @@ class ContextImpl extends Context {
String receiverPermission) {
String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
try {
intent.setAllowFds(false);
ActivityManagerNative.getDefault().broadcastIntent(
mMainThread.getApplicationThread(), intent, resolvedType, null,
Activity.RESULT_OK, null, null, receiverPermission, true, false);
@@ -946,6 +950,7 @@ class ContextImpl extends Context {
}
String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
try {
intent.setAllowFds(false);
ActivityManagerNative.getDefault().broadcastIntent(
mMainThread.getApplicationThread(), intent, resolvedType, rd,
initialCode, initialData, initialExtras, receiverPermission,
@@ -958,6 +963,7 @@ class ContextImpl extends Context {
public void sendStickyBroadcast(Intent intent) {
String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
try {
intent.setAllowFds(false);
ActivityManagerNative.getDefault().broadcastIntent(
mMainThread.getApplicationThread(), intent, resolvedType, null,
Activity.RESULT_OK, null, null, null, false, true);
@@ -989,6 +995,7 @@ class ContextImpl extends Context {
}
String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
try {
intent.setAllowFds(false);
ActivityManagerNative.getDefault().broadcastIntent(
mMainThread.getApplicationThread(), intent, resolvedType, rd,
initialCode, initialData, initialExtras, null,
@@ -1005,6 +1012,7 @@ class ContextImpl extends Context {
intent.setDataAndType(intent.getData(), resolvedType);
}
try {
intent.setAllowFds(false);
ActivityManagerNative.getDefault().unbroadcastIntent(
mMainThread.getApplicationThread(), intent);
} catch (RemoteException e) {
@@ -1069,6 +1077,7 @@ class ContextImpl extends Context {
@Override
public ComponentName startService(Intent service) {
try {
service.setAllowFds(false);
ComponentName cn = ActivityManagerNative.getDefault().startService(
mMainThread.getApplicationThread(), service,
service.resolveTypeIfNeeded(getContentResolver()));
@@ -1086,6 +1095,7 @@ class ContextImpl extends Context {
@Override
public boolean stopService(Intent service) {
try {
service.setAllowFds(false);
int res = ActivityManagerNative.getDefault().stopService(
mMainThread.getApplicationThread(), service,
service.resolveTypeIfNeeded(getContentResolver()));
@@ -1116,6 +1126,7 @@ class ContextImpl extends Context {
< android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
flags |= BIND_WAIVE_PRIORITY;
}
service.setAllowFds(false);
int res = ActivityManagerNative.getDefault().bindService(
mMainThread.getApplicationThread(), getActivityToken(),
service, service.resolveTypeIfNeeded(getContentResolver()),
@@ -1148,6 +1159,9 @@ class ContextImpl extends Context {
public boolean startInstrumentation(ComponentName className,
String profileFile, Bundle arguments) {
try {
if (arguments != null) {
arguments.setAllowFds(false);
}
return ActivityManagerNative.getDefault().startInstrumentation(
className, profileFile, 0, arguments, null);
} catch (RemoteException e) {

3
core/java/android/app/Instrumentation.java
View File

@@ -1375,6 +1375,7 @@ public class Instrumentation {
}
}
try {
intent.setAllowFds(false);
int result = ActivityManagerNative.getDefault()
.startActivity(whoThread, intent,
intent.resolveTypeIfNeeded(who.getContentResolver()),
@@ -1415,6 +1416,7 @@ public class Instrumentation {
try {
String[] resolvedTypes = new String[intents.length];
for (int i=0; i<intents.length; i++) {
intents[i].setAllowFds(false);
resolvedTypes[i] = intents[i].resolveTypeIfNeeded(who.getContentResolver());
}
int result = ActivityManagerNative.getDefault()
@@ -1471,6 +1473,7 @@ public class Instrumentation {
}
}
try {
intent.setAllowFds(false);
int result = ActivityManagerNative.getDefault()
.startActivity(whoThread, intent,
intent.resolveTypeIfNeeded(who.getContentResolver()),

3
core/java/android/app/LoadedApk.java
View File

@@ -661,6 +661,9 @@ public final class LoadedApk {
"Finishing broadcast to unregistered receiver");
IActivityManager mgr = ActivityManagerNative.getDefault();
try {
if (extras != null) {
extras.setAllowFds(false);
}
mgr.finishReceiver(this, resultCode, data, extras, false);
} catch (RemoteException e) {
Slog.w(ActivityThread.TAG, "Couldn't finish broadcast to unregistered receiver");

4
core/java/android/app/PendingIntent.java
View File

@@ -192,6 +192,7 @@ public final class PendingIntent implements Parcelable {
String resolvedType = intent != null ? intent.resolveTypeIfNeeded(
context.getContentResolver()) : null;
try {
intent.setAllowFds(false);
IIntentSender target =
ActivityManagerNative.getDefault().getIntentSender(
IActivityManager.INTENT_SENDER_ACTIVITY, packageName,
@@ -249,6 +250,7 @@ public final class PendingIntent implements Parcelable {
String packageName = context.getPackageName();
String[] resolvedTypes = new String[intents.length];
for (int i=0; i<intents.length; i++) {
intents[i].setAllowFds(false);
resolvedTypes[i] = intents[i].resolveTypeIfNeeded(context.getContentResolver());
}
try {
@@ -287,6 +289,7 @@ public final class PendingIntent implements Parcelable {
String resolvedType = intent != null ? intent.resolveTypeIfNeeded(
context.getContentResolver()) : null;
try {
intent.setAllowFds(false);
IIntentSender target =
ActivityManagerNative.getDefault().getIntentSender(
IActivityManager.INTENT_SENDER_BROADCAST, packageName,
@@ -324,6 +327,7 @@ public final class PendingIntent implements Parcelable {
String resolvedType = intent != null ? intent.resolveTypeIfNeeded(
context.getContentResolver()) : null;
try {
intent.setAllowFds(false);
IIntentSender target =
ActivityManagerNative.getDefault().getIntentSender(
IActivityManager.INTENT_SENDER_SERVICE, packageName,

4
core/java/android/content/BroadcastReceiver.java
View File

@@ -366,6 +366,9 @@ public abstract class BroadcastReceiver {
mFinished = true;
try {
if (mResultExtras != null) {
mResultExtras.setAllowFds(false);
}
if (mOrderedHint) {
am.finishReceiver(mToken, mResultCode, mResultData, mResultExtras,
mAbortBroadcast);
@@ -462,6 +465,7 @@ public abstract class BroadcastReceiver {
IActivityManager am = ActivityManagerNative.getDefault();
IBinder binder = null;
try {
service.setAllowFds(false);
binder = am.peekService(service, service.resolveTypeIfNeeded(
myContext.getContentResolver()));
} catch (RemoteException e) {

7
core/java/android/content/Intent.java
View File

@@ -3568,6 +3568,13 @@ public class Intent implements Parcelable, Cloneable {
return mExtras != null && mExtras.hasFileDescriptors();
}
/** @hide */
public void setAllowFds(boolean allowFds) {
if (mExtras != null) {
mExtras.setAllowFds(allowFds);
}
}
/**
* Retrieve extended data from the intent.
*

51
core/java/android/os/Bundle.java
View File

@@ -54,6 +54,7 @@ public final class Bundle implements Parcelable, Cloneable {
private boolean mHasFds = false;
private boolean mFdsKnown = true;
private boolean mAllowFds = true;
/**
* The ClassLoader used when unparcelling data from mParcelledData.
@@ -186,7 +187,14 @@ public final class Bundle implements Parcelable, Cloneable {
public ClassLoader getClassLoader() {
return mClassLoader;
}
/** @hide */
public boolean setAllowFds(boolean allowFds) {
boolean orig = mAllowFds;
mAllowFds = allowFds;
return orig;
}
/**
* Clones the current Bundle. The internal map is cloned, but the keys and
* values to which it refers are copied by reference.
@@ -1589,24 +1597,29 @@ public final class Bundle implements Parcelable, Cloneable {
* @param parcel The parcel to copy this bundle to.
*/
public void writeToParcel(Parcel parcel, int flags) {
if (mParcelledData != null) {
int length = mParcelledData.dataSize();
parcel.writeInt(length);
parcel.writeInt(0x4C444E42); // 'B' 'N' 'D' 'L'
parcel.appendFrom(mParcelledData, 0, length);
} else {
parcel.writeInt(-1); // dummy, will hold length
parcel.writeInt(0x4C444E42); // 'B' 'N' 'D' 'L'
int oldPos = parcel.dataPosition();
parcel.writeMapInternal(mMap);
int newPos = parcel.dataPosition();
// Backpatch length
parcel.setDataPosition(oldPos - 8);
int length = newPos - oldPos;
parcel.writeInt(length);
parcel.setDataPosition(newPos);
final boolean oldAllowFds = parcel.setAllowFds(mAllowFds);
try {
if (mParcelledData != null) {
int length = mParcelledData.dataSize();
parcel.writeInt(length);
parcel.writeInt(0x4C444E42); // 'B' 'N' 'D' 'L'
parcel.appendFrom(mParcelledData, 0, length);
} else {
parcel.writeInt(-1); // dummy, will hold length
parcel.writeInt(0x4C444E42); // 'B' 'N' 'D' 'L'
int oldPos = parcel.dataPosition();
parcel.writeMapInternal(mMap);
int newPos = parcel.dataPosition();
// Backpatch length
parcel.setDataPosition(oldPos - 8);
int length = newPos - oldPos;
parcel.writeInt(length);
parcel.setDataPosition(newPos);
}
} finally {
parcel.setAllowFds(oldAllowFds);
}
}

3
core/java/android/os/Parcel.java
View File

@@ -323,6 +323,9 @@ public final class Parcel {
*/
public final native void setDataCapacity(int size);
/** @hide */
public final native boolean setAllowFds(boolean allowFds);
/**
* Returns the raw bytes of the parcel.
*