Check for app manifest opt-out from playback capture
Query the package manager to check if the app has not opt-out of its
playback being captured.
Test: adb shell audiorecorder --target /data/file1.raw &
adb shell am start -a android.intent.action.VIEW -d file:///system/media/audio/ringtones/Lollipop.ogg -t audio/ogg
adb dumpsys media.audio_policy # check playback is not recorded
# change media player manifest to allowPlaybackCapture=true
adb dumpsys media.audio_policy # check playback is recorded
kill %1
adb pull /data/file1.raw && sox -r 48000 -e signed -b 16 -c 2 file1.raw file.wav&& audacity file.wav
# check silence then sound
Bug: 111453086
Change-Id: Id6fb7d0e10c02b0473bcbc0786e8360536996f48
Signed-off-by: Kevin Rocard <krocard@google.com>
diff --git a/media/utils/include/mediautils/ServiceUtilities.h b/media/utils/include/mediautils/ServiceUtilities.h
index 98f54c2..94370ee 100644
--- a/media/utils/include/mediautils/ServiceUtilities.h
+++ b/media/utils/include/mediautils/ServiceUtilities.h
@@ -14,13 +14,22 @@
* limitations under the License.
*/
+#ifndef ANDROID_MEDIAUTILS_SERVICEUTILITIES_H
+#define ANDROID_MEDIAUTILS_SERVICEUTILITIES_H
+
#include <unistd.h>
+#include <android/content/pm/IPackageManagerNative.h>
#include <binder/IMemory.h>
#include <binder/PermissionController.h>
#include <cutils/multiuser.h>
#include <private/android_filesystem_config.h>
+#include <map>
+#include <optional>
+#include <string>
+#include <vector>
+
namespace android {
// Audio permission utilities
@@ -72,4 +81,31 @@
bool dumpAllowed();
bool modifyPhoneStateAllowed(pid_t pid, uid_t uid);
status_t checkIMemory(const sp<IMemory>& iMemory);
+
+class MediaPackageManager {
+public:
+ /** Query the PackageManager to check if all apps of an UID allow playback capture. */
+ bool allowPlaybackCapture(uid_t uid) {
+ auto result = doIsAllowed(uid);
+ if (!result) {
+ mPackageManagerErrors++;
+ }
+ return result.value_or(false);
+ }
+ void dump(int fd, int spaces = 0) const;
+private:
+ static constexpr const char* nativePackageManagerName = "package_native";
+ std::optional<bool> doIsAllowed(uid_t uid);
+ sp<content::pm::IPackageManagerNative> retreivePackageManager();
+ sp<content::pm::IPackageManagerNative> mPackageManager; // To check apps manifest
+ uint_t mPackageManagerErrors = 0;
+ struct Package {
+ std::string name;
+ bool playbackCaptureAllowed = false;
+ };
+ using Packages = std::vector<Package>;
+ std::map<uid_t, Packages> mDebugLog;
+};
}
+
+#endif // ANDROID_MEDIAUTILS_SERVICEUTILITIES_H