Add Call to Install Keybox to Widevine CDM

This merges the following changes from the Widevine CDM repository:

1a72a7e  Combine utility code into single library on Android
  Combines several previously-separate files into a static library,
  libcdm_utils, so that it can easily be used by both CDM and
  OEMCrypto.

8c4d04d  Install Keybox
  If the keybox has not been installed, install it from
  /factory/wv.keys.

Bug: 9972451
Change-Id: I8688ecd0adcf321e0c7d0faf55dd10f3910c12ec

libwvdrmengine/Android.mk

@@ -4,18 +4,32 @@
 LOCAL_PATH := $(call my-dir)
 
 # -----------------------------------------------------------------------------
-# Builds libmodp_b64.a
+# Builds libcdm_utils.a
 #
 include $(CLEAR_VARS)
 
-LOCAL_MODULE := libmodp_b64
+LOCAL_MODULE := libcdm_utils
 LOCAL_MODULE_CLASS := STATIC_LIBRARIES
 
 LOCAL_C_INCLUDES := \
     bionic \
-    external/stlport/stlport
+    external/stlport/stlport \
+    vendor/widevine/libwvdrmengine/cdm/core/include \
+    vendor/widevine/libwvdrmengine/cdm/include \
+    vendor/widevine/libwvdrmengine/oemcrypto/include \
+    vendor/widevine/libwvdrmengine/third_party/stringencoders/src
 
-LOCAL_SRC_FILES := third_party/stringencoders/src/modp_b64w.cpp
+SRC_DIR := cdm/src
+CORE_SRC_DIR := cdm/core/src
+LOCAL_SRC_FILES := third_party/stringencoders/src/modp_b64w.cpp \
+    $(CORE_SRC_DIR)/properties.cpp \
+    $(CORE_SRC_DIR)/string_conversions.cpp \
+    $(SRC_DIR)/clock.cpp \
+    $(SRC_DIR)/file_store.cpp \
+    $(SRC_DIR)/lock.cpp \
+    $(SRC_DIR)/log.cpp \
+    $(SRC_DIR)/properties_android.cpp \
+    $(SRC_DIR)/timer.cpp \
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -77,6 +91,7 @@ LOCAL_C_INCLUDES := \
 
 LOCAL_STATIC_LIBRARIES := \
   libcdm \
+  libcdm_utils \
   libwvwrapper \
   libwvlevel3 \
   libprotobuf-cpp-2.3.0-lite \

libwvdrmengine/cdm/Android.mk

@@ -31,17 +31,8 @@ LOCAL_SRC_FILES := \
     $(CORE_SRC_DIR)/device_files.cpp \
     $(CORE_SRC_DIR)/license.cpp \
     $(CORE_SRC_DIR)/policy_engine.cpp \
-    $(CORE_SRC_DIR)/properties.cpp \
-    $(CORE_SRC_DIR)/string_conversions.cpp \
-    $(SRC_DIR)/clock.cpp \
-    $(SRC_DIR)/file_store.cpp \
-    $(SRC_DIR)/lock.cpp \
-    $(SRC_DIR)/log.cpp \
-    $(SRC_DIR)/properties_android.cpp \
-    $(SRC_DIR)/timer.cpp \
     $(SRC_DIR)/wv_content_decryption_module.cpp
 
-LOCAL_WHOLE_STATIC_LIBRARIES := libmodp_b64
 LOCAL_MODULE := libcdm
 LOCAL_MODULE_TAGS := optional
 

libwvdrmengine/cdm/core/include/properties.h

@@ -47,6 +47,7 @@ class Properties {
   static bool GetProductName(std::string* product_name);
   static bool GetBuildInfo(std::string* build_info);
   static bool GetDeviceFilesBasePath(std::string* base_path);
+  static bool GetFactoryKeyboxPath(std::string* keybox);
 
  private:
   static void set_begin_license_usage_when_received(bool flag) {

libwvdrmengine/cdm/src/properties_android.cpp

@@ -92,4 +92,13 @@ bool Properties::GetDeviceFilesBasePath(std::string* base_path) {
   return true;
 }
 
+bool Properties::GetFactoryKeyboxPath(std::string* keybox) {
+  if (!keybox) {
+    LOGW("Properties::GetFactoryKeyboxPath: Invalid parameter");
+    return false;
+  }
+  *keybox = "/factory/wv.keys";
+  return true;
+}
+
 }  // namespace wvcdm

libwvdrmengine/cdm/test/unit-test.mk

@@ -34,15 +34,15 @@ LOCAL_ADDITIONAL_DEPENDENCIES := $(cdm_proto_gen_headers)
 
 LOCAL_STATIC_LIBRARIES := \
     libcdm \
+    libcdm_protos \
     libgmock \
     libgtest \
     libgtest_main \
     libwvwrapper \
     libwvlevel3 \
+    libcdm_utils \
     libprotobuf-cpp-2.3.0-lite
 
-LOCAL_WHOLE_STATIC_LIBRARIES := libcdm_protos
-
 LOCAL_SHARED_LIBRARIES := \
     libcrypto \
     libcutils \

libwvdrmengine/mediacrypto/test/Android.mk

@@ -18,6 +18,8 @@ LOCAL_C_INCLUDES := \
 
 LOCAL_STATIC_LIBRARIES := \
   libcdm \
+  libcdm_protos \
+  libcdm_utils \
   libgmock \
   libgmock_main \
   libgtest \
@@ -47,8 +49,6 @@ LOCAL_C_INCLUDES += \
 
 LOCAL_ADDITIONAL_DEPENDENCIES += $(proto_generated_headers)
 
-LOCAL_WHOLE_STATIC_LIBRARIES := libcdm_protos
-
 # End protobuf section
 
 LOCAL_MODULE := libwvdrmmediacrypto_test

libwvdrmengine/mediadrm/test/Android.mk

@@ -18,6 +18,8 @@ LOCAL_C_INCLUDES := \
 
 LOCAL_STATIC_LIBRARIES := \
   libcdm \
+  libcdm_protos \
+  libcdm_utils \
   libgmock \
   libgmock_main \
   libgtest \
@@ -46,8 +48,6 @@ LOCAL_C_INCLUDES += \
 
 LOCAL_ADDITIONAL_DEPENDENCIES += $(proto_generated_headers)
 
-LOCAL_WHOLE_STATIC_LIBRARIES := libcdm_protos
-
 # End protobuf section
 
 LOCAL_MODULE := libwvdrmdrmplugin_test

libwvdrmengine/oemcrypto/include/level3.h

@@ -1,5 +1,5 @@
 /*********************************************************************
- * OEMCryptoCENC.h
+ * level3.h
  *
  * (c) Copyright 2013 Google, Inc.
  *

libwvdrmengine/oemcrypto/mock/Android.mk

@@ -2,18 +2,12 @@ LOCAL_PATH:= $(call my-dir)
 
 include $(CLEAR_VARS)
 
-CDM_SRC_DIR=../../cdm/src
-CORE_SRC_DIR=../../cdm/core/src
-
 LOCAL_SRC_FILES:= \
     src/oemcrypto_engine_mock.cpp \
     src/oemcrypto_key_mock.cpp \
     src/oemcrypto_keybox_mock.cpp \
     src/oemcrypto_mock.cpp \
     src/wvcrc.cpp \
-    $(CDM_SRC_DIR)/lock.cpp \
-    $(CDM_SRC_DIR)/log.cpp \
-    $(CORE_SRC_DIR)/string_conversions.cpp \
 
 LOCAL_MODULE_TAGS := tests
 
@@ -37,7 +31,9 @@ LOCAL_SHARED_LIBRARIES := \
     libutils \
     libz \
 
-LOCAL_WHOLE_STATIC_LIBRARIES := libmodp_b64
+LOCAL_STATIC_LIBRARIES := \
+    libcdm_utils
+
 LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR_SHARED_LIBRARIES)
 LOCAL_MODULE := liboemcrypto
 

libwvdrmengine/oemcrypto/src/wrapper.cpp

@@ -16,6 +16,8 @@
 
 #include "level3.h"
 #include "log.h"
+#include "file_store.h"
+#include "properties.h"
 
 using namespace wvoec_level3;
 
@@ -232,6 +234,32 @@ OEMCryptoResult OEMCrypto_Initialize(void) {
       return Level3_Initialize();
     }
   }
+  if (OEMCrypto_SUCCESS != OEMCrypto_IsKeyboxValid()) {
+    wvcdm::File file;
+    std::string filename;
+    if (!wvcdm::Properties::GetFactoryKeyboxPath(&filename)) {
+      LOGW("Bad Level 1 Keybox. Falling Back to L3.");
+      dlclose(level1.library);
+      level1.library = NULL;
+      return Level3_Initialize();
+    }
+    ssize_t size = file.FileSize(filename);
+    if( size <= 0 || !file.Open(filename, file.kBinary | file.kReadOnly) ) {
+      LOGW("Could not open %s. Falling Back to L3.", filename.c_str());
+      dlclose(level1.library);
+      level1.library = NULL;
+      return Level3_Initialize();
+    }
+    uint8_t keybox[size];
+    ssize_t size_read = file.Read(reinterpret_cast<char *>(keybox), size);
+    if (level1.OEMCrypto_InstallKeybox(keybox, size) != OEMCrypto_SUCCESS) {
+      LOGE("Could NOT install keybox in /factory/wv.keys. Falling Back to L3.");
+      dlclose(level1.library);
+      level1.library = NULL;
+      return Level3_Initialize();
+    }
+    LOGI("Installed keybox from %s", filename.c_str());
+  }
   LOGD("OEMCrypto_Initialize Level 1 success. I will use level 1.");
   return OEMCrypto_SUCCESS;
 }

libwvdrmengine/oemcrypto/test/Android.mk

@@ -21,12 +21,12 @@ LOCAL_C_INCLUDES += \
   vendor/widevine/libwvdrmengine/cdm/core/include \
   vendor/widevine/libwvdrmengine/third_party/stringencoders/src \
 
-# TODO(fredgc): fix order dependencies on libwvlevel3 and libwvwrapper.
 LOCAL_STATIC_LIBRARIES := \
   libgtest \
   libgtest_main \
   libwvwrapper \
   libwvlevel3 \
+  libcdm_utils \
 
 LOCAL_SHARED_LIBRARIES := \
   libcrypto \