Add device ID to Widevine license request

Also added other Client identification fields specified in license exchange
protocol, Appendix C

https://docs.google.com/a/google.com/document/d/1cng6cDnchbDQDymLEd5MxMc_laS3EDv6IsoW3IzpgwQ/edit#heading=h.pmkiti873xeg

They are company, model, architecture, device and product name.

bug: 8292249
Change-Id: I4d5fa93a0c85c7abb025c66d48e4aafbfe90efd8

libwvdrmengine/Android.mk

@@ -66,6 +66,7 @@ LOCAL_STATIC_LIBRARIES := \
 
 LOCAL_SHARED_LIBRARIES := \
   libcrypto \
+  libcutils \
   libdl \
   liblog \
   libstlport \

libwvdrmengine/cdm/Android.mk

@@ -33,6 +33,7 @@ LOCAL_SRC_FILES := \
     $(SRC_DIR)/clock.cpp \
     $(SRC_DIR)/lock.cpp \
     $(SRC_DIR)/log.cpp \
+    $(SRC_DIR)/properties.cpp \
     $(SRC_DIR)/timer.cpp \
     $(SRC_DIR)/wv_content_decryption_module.cpp
 

libwvdrmengine/cdm/core/include/properties.h

@@ -39,7 +39,11 @@ class Properties {
   static inline bool use_certificates_as_identification() {
     return use_certificates_as_identification_;
   }
-
+  static bool GetModelName(std::string& model_name);
+  static bool GetArchitectureName(std::string& arch_name);
+  static bool GetDeviceName(std::string& device_name);
+  static bool GetProductName(std::string& product_name);
+  static bool GetBuildInfo(std::string& build_info);
 
  private:
   static void set_begin_license_usage_when_received(bool flag) {

libwvdrmengine/cdm/core/src/license.cpp

@@ -4,6 +4,7 @@
 
 #include <vector>
 
+#include "crypto_engine.h"
 #include "crypto_session.h"
 #include "log.h"
 #include "policy_engine.h"
@@ -11,6 +12,17 @@
 #include "string_conversions.h"
 #include "wv_cdm_constants.h"
 
+namespace {
+  std::string kCompanyNameKey = "company_name";
+  std::string kCompanyNameValueGoogle = "Google";
+  std::string kModelNameKey = "model_name";
+  std::string kArchitectureNameKey = "architecture_name";
+  std::string kDeviceNameKey = "device_name";
+  std::string kProductNameKey = "product_name";
+  std::string kBuildInfoKey = "build_info";
+  std::string kDeviceIdKey = "device_id";
+}
+
 namespace wvcdm {
 
 // Protobuf generated classes.
@@ -105,13 +117,45 @@ bool CdmLicense::PrepareKeyRequest(const CdmInitData& init_data,
     client_id->set_type(ClientIdentification::KEYBOX);
   client_id->set_token(token_);
 
-  ClientIdentification_NameValue client_info;
+  ClientIdentification_NameValue* client_info;
   CdmAppParameterMap::const_iterator iter;
   for (iter = app_parameters.begin(); iter != app_parameters.end(); iter++) {
-    ClientIdentification_NameValue* client_info = client_id->add_client_info();
+    client_info = client_id->add_client_info();
     client_info->set_name(iter->first);
     client_info->set_value(iter->second);
   }
+  std::string value;
+  client_info = client_id->add_client_info();
+  client_info->set_name(kCompanyNameKey);
+  client_info->set_value(kCompanyNameValueGoogle);
+  if (Properties::GetModelName(value)) {
+    client_info = client_id->add_client_info();
+    client_info->set_name(kModelNameKey);
+    client_info->set_value(value);
+  }
+  if (Properties::GetArchitectureName(value)) {
+    client_info = client_id->add_client_info();
+    client_info->set_name(kArchitectureNameKey);
+    client_info->set_value(value);
+  }
+  if (Properties::GetDeviceName(value)) {
+    client_info = client_id->add_client_info();
+    client_info->set_name(kDeviceNameKey);
+    client_info->set_value(value);
+  }
+  if (Properties::GetProductName(value)) {
+    client_info = client_id->add_client_info();
+    client_info->set_name(kProductNameKey);
+    client_info->set_value(value);
+  }
+  if (Properties::GetBuildInfo(value)) {
+    client_info = client_id->add_client_info();
+    client_info->set_name(kBuildInfoKey);
+    client_info->set_value(value);
+  }
+
+  client_info->set_name(kDeviceIdKey);
+  client_info->set_value(CryptoEngine::GetInstance()->GetDeviceUniqueId());
 
   // Content Identification may be a cenc_id, a webm_id or a license_id
   LicenseRequest_ContentIdentification* content_id =

libwvdrmengine/cdm/src/properties.cpp

@@ -0,0 +1,42 @@
+// Copyright 2013 Google Inc. All Rights Reserved.
+
+#include <string>
+
+#include "cutils/properties.h"
+#include "properties.h"
+
+namespace {
+  bool GetAndroidProperty(const char* key, std::string& value) {
+    char val[PROPERTY_VALUE_MAX];
+
+    if (property_get(key, val, "Unknown") <= 0)
+      return false;
+
+    value = val;
+    return true;
+  }
+}
+
+namespace wvcdm {
+
+bool Properties::GetModelName(std::string& model_name) {
+  return GetAndroidProperty("ro.product.model", model_name);
+}
+
+bool Properties::GetArchitectureName(std::string& arch_name) {
+  return GetAndroidProperty("ro.product.cpu.abi", arch_name);
+}
+
+bool Properties::GetDeviceName(std::string& device_name) {
+  return GetAndroidProperty("ro.product.device", device_name);
+}
+
+bool Properties::GetProductName(std::string& product_name) {
+  return GetAndroidProperty("ro.product.name", product_name);
+}
+
+bool Properties::GetBuildInfo(std::string& build_info) {
+  return GetAndroidProperty("ro.build.fingerprint", build_info);
+}
+
+}  // namespace wvcdm

libwvdrmengine/mediacrypto/test/Android.mk

@@ -26,6 +26,7 @@ LOCAL_STATIC_LIBRARIES := \
 
 LOCAL_SHARED_LIBRARIES := \
   libcrypto \
+  libcutils \
   libdl \
   liblog \
   libstagefright_foundation \

libwvdrmengine/mediadrm/test/Android.mk

@@ -27,6 +27,7 @@ LOCAL_STATIC_LIBRARIES := \
 
 LOCAL_SHARED_LIBRARIES := \
   libcrypto \
+  libcutils \
   libdl \
   liblog \
   libstlport \