Add signature|system permission to MediaDrm signer APIs
Change-Id: If970e5ff8dcab2e67af2f3376dcd14dca82f2394
related-to-bug: 12702350
diff --git a/media/libmediaplayerservice/Drm.cpp b/media/libmediaplayerservice/Drm.cpp
index e68d4cd..d50037f 100644
--- a/media/libmediaplayerservice/Drm.cpp
+++ b/media/libmediaplayerservice/Drm.cpp
@@ -28,9 +28,21 @@
#include <media/stagefright/foundation/AString.h>
#include <media/stagefright/foundation/hexdump.h>
#include <media/stagefright/MediaErrors.h>
+#include <binder/IServiceManager.h>
+#include <binder/IPCThreadState.h>
namespace android {
+static bool checkPermission(const char* permissionString) {
+#ifndef HAVE_ANDROID_OS
+ return true;
+#endif
+ if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
+ bool ok = checkCallingPermission(String16(permissionString));
+ if (!ok) ALOGE("Request requires %s", permissionString);
+ return ok;
+}
+
KeyedVector<Vector<uint8_t>, String8> Drm::mUUIDToLibraryPathMap;
KeyedVector<String8, wp<SharedLibrary> > Drm::mLibraryPathToOpenLibraryMap;
Mutex Drm::mMapLock;
@@ -608,6 +620,10 @@
return -EINVAL;
}
+ if (!checkPermission("android.permission.ACCESS_DRM_CERTIFICATES")) {
+ return -EPERM;
+ }
+
return mPlugin->signRSA(sessionId, algorithm, message, wrappedKey, signature);
}