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Fix Entitlement Licenses

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(This is a merge of http://go/wvgerrit/97083.)

The switch from LoadKeys to LoadLicense broke entitlement licenses
entirely because the LoadLicense path in CryptoSession didn't include
any affordances for updating the KeySession, unlike the LoadKeys path.
This patch adds code to handle this.

Bug: 152814106
Test: CE CDM Unit Tests
Test: Android Unit Tests
Change-Id: Id0c33a566e17e6be8da04e12be4b0fc87559aa8f
This commit is contained in:
John W. Bruce
2020-03-31 11:21:36 -07:00
committed by John Bruce
parent bab44e0ad4
commit 4444ba3b47
3 changed files with 13 additions and 4 deletions
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3
libwvdrmengine/cdm/core/include/crypto_session.h
View File

@@ -135,7 +135,8 @@ class CryptoSession {
// V16 licenses.
virtual CdmResponseType LoadLicense(const std::string& signed_message,
const std::string& core_message,
const std::string& signature);
const std::string& signature,
CdmLicenseKeyType key_type);
// Renewal request/responses
virtual CdmResponseType PrepareAndSignRenewalRequest(

8
libwvdrmengine/cdm/core/src/crypto_session.cpp
View File

@@ -952,11 +952,17 @@ CdmResponseType CryptoSession::LoadKeys(
CdmResponseType CryptoSession::LoadLicense(const std::string& signed_message,
const std::string& core_message,
const std::string& signature) {
const std::string& signature,
CdmLicenseKeyType key_type) {
LOGV("Loading license: id = %u", oec_session_id_);
const std::string combined_message = core_message + signed_message;
OEMCryptoResult sts;
WithOecSessionLock("LoadLicense", [&] {
if (key_type == kLicenseKeyTypeEntitlement &&
key_session_->Type() != KeySession::kEntitlement) {
key_session_.reset(new EntitlementKeySession(oec_session_id_, metrics_));
}
M_TIME(sts = OEMCrypto_LoadLicense(
oec_session_id_,
reinterpret_cast<const uint8_t*>(combined_message.data()),

6
libwvdrmengine/cdm/core/src/license.cpp
View File

@@ -1099,7 +1099,8 @@ CdmResponseType CdmLicense::HandleContentKeyResponse(
}
CdmResponseType resp;
if (supports_core_messages()) {
resp = crypto_session_->LoadLicense(msg, core_message, signature);
resp = crypto_session_->LoadLicense(msg, core_message, signature,
kLicenseKeyTypeContent);
} else {
resp = crypto_session_->LoadKeys(
msg, signature, mac_key_iv, mac_key, key_array, provider_session_token_,
@@ -1128,7 +1129,8 @@ CdmResponseType CdmLicense::HandleEntitlementKeyResponse(
}
CdmResponseType resp;
if (supports_core_messages()) {
resp = crypto_session_->LoadLicense(msg, core_message, signature);
resp = crypto_session_->LoadLicense(msg, core_message, signature,
kLicenseKeyTypeEntitlement);
} else {
resp = crypto_session_->LoadKeys(
msg, signature, mac_key_iv, mac_key, key_array, provider_session_token_,