Factory tool implements Widevine IRPC HAL v3

Implement IRPC HAL v3 interfaces for extracting device registration CSR.
The new interface calls OEMCrypto_GetDeviceInformation() and
OEMCrypto_GetSignedCsrPayload() and then constructs the CSR.

Also added all mandatory fields of device info in the request.

Test: Run extraction tool on Pixel 7 and upload CSR
Test: Verified Widevine remote provisioning
Bug: 268246995
Change-Id: I24097ba32c7a105266071c1341c938b5874b38d8

libwvdrmengine/factory_upload_tool/src/WidevineRemotelyProvisionedComponent.cpp

@@ -75,9 +75,10 @@ class Status {
 
 ScopedAStatus WidevineRemotelyProvisionedComponent::getHardwareInfo(
     RpcHardwareInfo* info) {
-  info->versionNumber = 1;
+  info->versionNumber = 3;
   info->rpcAuthorName = "Google";
   info->supportedEekCurve = RpcHardwareInfo::CURVE_25519;
+  info->uniqueId = "Widevine Implementation";
   return ScopedAStatus::ok();
 }
 
@@ -112,4 +113,23 @@ ScopedAStatus WidevineRemotelyProvisionedComponent::generateCertificateRequest(
   return ScopedAStatus::ok();
 }
 
+ScopedAStatus
+WidevineRemotelyProvisionedComponent::generateCertificateRequestV2(
+    const std::vector<MacedPublicKey>& keysToSign,
+    const std::vector<uint8_t>& challenge, std::vector<uint8_t>* csr) {
+  if (!keysToSign.empty()) {
+    return Status("Invalid operation: Keys to sign must be empty.");
+  }
+  if (csr == nullptr) {
+    return Status("Parameter csr must not be null.");
+  }
+  if (provisioner_ == nullptr) {
+    provisioner_ = std::make_unique<widevine::WidevineProvisioner>();
+  }
+  if (!provisioner_->GenerateCertificateRequestV2(challenge, csr)) {
+    return Status("Failed to generate certificate request V2.");
+  }
+  return ScopedAStatus::ok();
+}
+
 }  // namespace aidl::android::hardware::security::keymint