| /* |
| * Copyright (C) 2013 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 <jni.h> |
| #include <sys/types.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <sys/syscall.h> |
| #include <utils/Log.h> |
| |
| /* |
| * Returns true iff this device may be vulnerable to installation of rogue drm |
| * plugins, as determined by the existance of the _installDrmEngine symbol in the |
| * libdrmframework_jni.so library. |
| */ |
| static jboolean android_drm_cts_InstallDrmEngineTest(JNIEnv* env, jobject thiz) |
| { |
| jboolean result = false; |
| |
| // install /system/lib/libdrmtestplugin.so |
| FILE *f = popen("service call drm.drmManager 6 i32 0 i32 31 i32 1937339183 i32 795698548 " |
| "i32 794978668 i32 1684171116 i32 1702129010 i32 1819309171 i32 1852401525 " |
| "i32 7303982 i32 1598902849", "r"); |
| if (f) { |
| char buffer[128]; |
| if (fgets(buffer, sizeof(buffer), f) != NULL) { |
| const char *match = "Result: Parcel(00000000 '....')"; |
| if (!strncmp(buffer, match, strlen(match))) { |
| result = true; |
| } |
| } |
| pclose(f); |
| } |
| return result; |
| } |
| |
| static JNINativeMethod gMethods[] = { |
| { "doInstallDrmEngineTest", "()Z", |
| (void *) android_drm_cts_InstallDrmEngineTest }, |
| }; |
| |
| int register_android_drm_cts_NativeCodeTest(JNIEnv* env) |
| { |
| jclass clazz = env->FindClass("android/drm/cts/NativeCodeTest"); |
| return env->RegisterNatives(clazz, gMethods, |
| sizeof(gMethods) / sizeof(JNINativeMethod)); |
| } |