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/*
* Copyright (C) 2012 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.
*/
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/PermissionCache.h>
#include "ServiceUtilities.h"
namespace android {
// Not valid until initialized by AudioFlinger constructor. It would have to be
// re-initialized if the process containing AudioFlinger service forks (which it doesn't).
pid_t getpid_cached;
bool recordingAllowed() {
if (getpid_cached == IPCThreadState::self()->getCallingPid()) return true;
static const String16 sRecordAudio("android.permission.RECORD_AUDIO");
// don't use PermissionCache; this is not a system permission
bool ok = checkCallingPermission(sRecordAudio);
if (!ok) ALOGE("Request requires android.permission.RECORD_AUDIO");
return ok;
}
bool captureAudioOutputAllowed() {
if (getpid_cached == IPCThreadState::self()->getCallingPid()) return true;
static const String16 sCaptureAudioOutput("android.permission.CAPTURE_AUDIO_OUTPUT");
// don't use PermissionCache; this is not a system permission
bool ok = checkCallingPermission(sCaptureAudioOutput);
if (!ok) ALOGE("Request requires android.permission.CAPTURE_AUDIO_OUTPUT");
return ok;
}
bool captureHotwordAllowed() {
static const String16 sCaptureHotwordAllowed("android.permission.CAPTURE_AUDIO_HOTWORD");
bool ok = checkCallingPermission(sCaptureHotwordAllowed);
if (!ok) ALOGE("android.permission.CAPTURE_AUDIO_HOTWORD");
return ok;
}
bool captureFmTunerAllowed() {
static const String16 sCaptureFmTunerAllowed("android.permission.ACCESS_FM_RADIO");
bool ok = checkCallingPermission(sCaptureFmTunerAllowed);
if (!ok) ALOGE("android.permission.ACCESS_FM_RADIO");
return ok;
}
bool settingsAllowed() {
if (getpid_cached == IPCThreadState::self()->getCallingPid()) return true;
static const String16 sAudioSettings("android.permission.MODIFY_AUDIO_SETTINGS");
// don't use PermissionCache; this is not a system permission
bool ok = checkCallingPermission(sAudioSettings);
if (!ok) ALOGE("Request requires android.permission.MODIFY_AUDIO_SETTINGS");
return ok;
}
bool modifyAudioRoutingAllowed() {
static const String16 sModifyAudioRoutingAllowed("android.permission.MODIFY_AUDIO_ROUTING");
bool ok = checkCallingPermission(sModifyAudioRoutingAllowed);
if (!ok) ALOGE("android.permission.MODIFY_AUDIO_ROUTING");
return ok;
}
bool dumpAllowed() {
// don't optimize for same pid, since mediaserver never dumps itself
static const String16 sDump("android.permission.DUMP");
// OK to use PermissionCache; this is a system permission
bool ok = PermissionCache::checkCallingPermission(sDump);
// convention is for caller to dump an error message to fd instead of logging here
//if (!ok) ALOGE("Request requires android.permission.DUMP");
return ok;
}
} // namespace android
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