1b295f4c81
Bug: 8621588 Merge of the following CLs from the Widevine CDM repository: https://widevine-internal-review.googlesource.com/#/c/5602/ https://widevine-internal-review.googlesource.com/#/c/5431/ https://widevine-internal-review.googlesource.com/#/c/5660/ Change-Id: If37940e2535e1a1eca95e4394d8cf9bf689e9c3a
681 lines
22 KiB
C++
681 lines
22 KiB
C++
//
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// Copyright 2013 Google Inc. All Rights Reserved.
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//
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//#define LOG_NDEBUG 0
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#define LOG_TAG "WVCdm"
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#include <utils/Log.h>
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#include "WVDrmPlugin.h"
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#include <endian.h>
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#include <string.h>
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#include <sstream>
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#include <string>
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#include <vector>
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#include "mapErrors-inl.h"
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#include "media/stagefright/MediaErrors.h"
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#include "utils/Errors.h"
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#include "wv_cdm_constants.h"
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namespace wvdrm {
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using namespace android;
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using namespace std;
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using namespace wvcdm;
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WVDrmPlugin::WVDrmPlugin(WvContentDecryptionModule* cdm,
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WVGenericCryptoInterface* crypto)
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: mCDM(cdm), mCrypto(crypto) {}
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WVDrmPlugin::~WVDrmPlugin() {
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typedef map<CdmSessionId, CryptoSession>::iterator mapIterator;
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for (mapIterator iter = mCryptoSessions.begin();
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iter != mCryptoSessions.end();
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++iter) {
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bool bRes = mCDM->DetachEventListener(iter->first, this);
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if (!bRes) {
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ALOGE("Received failure when trying to detach WVDrmPlugin as an event"
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"listener.");
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}
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}
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mCryptoSessions.clear();
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}
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status_t WVDrmPlugin::openSession(Vector<uint8_t>& sessionId) {
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CdmSessionId cdmSessionId;
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CdmResponseType res = mCDM->OpenSession("com.widevine", &cdmSessionId);
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if (!isCdmResponseTypeSuccess(res)) {
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return mapAndNotifyOfCdmResponseType(sessionId, res);
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}
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bool success = false;
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// Register for events
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bool listenerAttached = mCDM->AttachEventListener(cdmSessionId, this);
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if (listenerAttached) {
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// Construct a CryptoSession
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CdmQueryMap info;
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res = mCDM->QueryKeyControlInfo(cdmSessionId, &info);
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if (isCdmResponseTypeSuccess(res) &&
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info.count(QUERY_KEY_OEMCRYPTO_SESSION_ID)) {
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OEMCrypto_SESSION oecSessionId;
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istringstream(info[QUERY_KEY_OEMCRYPTO_SESSION_ID]) >> oecSessionId;
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mCryptoSessions[cdmSessionId] = CryptoSession(oecSessionId);
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success = true;
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} else {
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ALOGE("Unable to query key control info.");
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}
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} else {
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ALOGE("Received failure when trying to attach WVDrmPlugin as an event"
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"listener.");
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}
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if (success) {
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// Marshal Session ID
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sessionId.clear();
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sessionId.appendArray(reinterpret_cast<const uint8_t*>(cdmSessionId.data()),
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cdmSessionId.size());
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return android::OK;
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} else {
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if (listenerAttached) {
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mCDM->DetachEventListener(cdmSessionId, this);
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}
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mCDM->CloseSession(cdmSessionId);
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if (!isCdmResponseTypeSuccess(res)) {
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// We got an error code we can return.
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return mapAndNotifyOfCdmResponseType(sessionId, res);
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} else {
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// We got a failure that did not give us an error code, such as a failure
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// of AttachEventListener() or the key being missing from the map.
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return kErrorCDMGeneric;
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}
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}
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}
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status_t WVDrmPlugin::closeSession(const Vector<uint8_t>& sessionId) {
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CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
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CdmResponseType res = mCDM->CloseSession(cdmSessionId);
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if (isCdmResponseTypeSuccess(res)) {
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mCryptoSessions.erase(cdmSessionId);
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}
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return mapAndNotifyOfCdmResponseType(sessionId, res);
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}
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status_t WVDrmPlugin::getKeyRequest(
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const Vector<uint8_t>& scope,
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const Vector<uint8_t>& initData,
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const String8& mimeType,
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KeyType keyType,
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const KeyedVector<String8, String8>& optionalParameters,
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Vector<uint8_t>& request,
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String8& defaultUrl) {
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CdmLicenseType cdmLicenseType;
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CdmSessionId cdmSessionId;
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CdmKeySetId cdmKeySetId;
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if (keyType == kKeyType_Offline) {
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cdmLicenseType = kLicenseTypeOffline;
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cdmSessionId.assign(scope.begin(), scope.end());
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} else if (keyType == kKeyType_Streaming) {
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cdmLicenseType = kLicenseTypeStreaming;
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cdmSessionId.assign(scope.begin(), scope.end());
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} else if (keyType == kKeyType_Release) {
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cdmLicenseType = kLicenseTypeRelease;
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cdmKeySetId.assign(scope.begin(), scope.end());
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} else {
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return android::ERROR_DRM_CANNOT_HANDLE;
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}
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// Build PSSH box for PSSH data in initData.
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static const char psshPrefix[] = {
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0, 0, 0, 0, // Total size
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'p', 's', 's', 'h', // "PSSH"
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0, 0, 0, 0, // Flags - must be zero
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0xED, 0xEF, 0x8B, 0xA9, 0x79, 0xD6, 0x4A, 0xCE, // Widevine UUID
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0xA3, 0xC8, 0x27, 0xDC, 0xD5, 0x1D, 0x21, 0xED,
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0, 0, 0, 0 // Size of initData
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};
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CdmInitData psshBox(psshPrefix, sizeof(psshPrefix) / sizeof(uint8_t));
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psshBox.append(reinterpret_cast<const char*>(initData.array()),
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initData.size());
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uint32_t* psshBoxSize = reinterpret_cast<uint32_t*>(&psshBox[0]);
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uint32_t* initDataSize = reinterpret_cast<uint32_t*>(&psshBox[28]);
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*initDataSize = htonl(initData.size());
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*psshBoxSize = htonl(psshBox.size());
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CdmAppParameterMap cdmParameters;
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for (size_t i = 0; i < optionalParameters.size(); ++i) {
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const String8& key = optionalParameters.keyAt(i);
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const String8& value = optionalParameters.valueAt(i);
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string cdmKey(key.string(), key.size());
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string cdmValue(value.string(), value.size());
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cdmParameters[cdmKey] = cdmValue;
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}
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CdmKeyMessage keyRequest;
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string cdmDefaultUrl;
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CdmResponseType res = mCDM->GenerateKeyRequest(cdmSessionId, cdmKeySetId,
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psshBox, cdmLicenseType,
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cdmParameters, &keyRequest,
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&cdmDefaultUrl);
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if (isCdmResponseTypeSuccess(res)) {
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defaultUrl.clear();
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defaultUrl.setTo(cdmDefaultUrl.data(), cdmDefaultUrl.size());
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request.clear();
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request.appendArray(reinterpret_cast<const uint8_t*>(keyRequest.data()),
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keyRequest.size());
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}
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if (keyType == kKeyType_Release) {
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// When releasing keys, we do not have a session ID.
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return mapCdmResponseType(res);
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} else {
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// For all other requests, we have a session ID.
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return mapAndNotifyOfCdmResponseType(scope, res);
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}
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}
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status_t WVDrmPlugin::provideKeyResponse(
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const Vector<uint8_t>& scope,
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const Vector<uint8_t>& response,
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Vector<uint8_t>& keySetId) {
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CdmSessionId cdmSessionId;
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CdmKeyResponse cdmResponse(response.begin(), response.end());
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CdmKeySetId cdmKeySetId;
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bool isRequest = (memcmp(scope.array(), SESSION_ID_PREFIX.data(),
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SESSION_ID_PREFIX.size()) == 0);
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bool isRelease = (memcmp(scope.array(), KEY_SET_ID_PREFIX.data(),
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KEY_SET_ID_PREFIX.size()) == 0);
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if (isRequest) {
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cdmSessionId.assign(scope.begin(), scope.end());
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} else if (isRelease) {
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cdmKeySetId.assign(scope.begin(), scope.end());
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} else {
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return android::ERROR_DRM_CANNOT_HANDLE;
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}
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CdmResponseType res = mCDM->AddKey(cdmSessionId, cdmResponse, cdmKeySetId);
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if (isRequest && isCdmResponseTypeSuccess(res)) {
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keySetId.clear();
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keySetId.appendArray(reinterpret_cast<const uint8_t*>(cdmKeySetId.data()),
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cdmKeySetId.size());
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}
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if (isRelease) {
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// When releasing keys, we do not have a session ID.
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return mapCdmResponseType(res);
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} else {
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// For all other requests, we have a session ID.
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return mapAndNotifyOfCdmResponseType(scope, res);
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}
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}
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status_t WVDrmPlugin::removeKeys(const Vector<uint8_t>& sessionId) {
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CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
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CdmResponseType res = mCDM->CancelKeyRequest(cdmSessionId);
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return mapAndNotifyOfCdmResponseType(sessionId, res);
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}
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status_t WVDrmPlugin::restoreKeys(const Vector<uint8_t>& sessionId,
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const Vector<uint8_t>& keySetId) {
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CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
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CdmKeySetId cdmKeySetId(keySetId.begin(), keySetId.end());
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CdmResponseType res = mCDM->RestoreKey(cdmSessionId, cdmKeySetId);
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return mapAndNotifyOfCdmResponseType(sessionId, res);
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}
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status_t WVDrmPlugin::queryKeyStatus(
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const Vector<uint8_t>& sessionId,
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KeyedVector<String8, String8>& infoMap) const {
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CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
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CdmQueryMap cdmLicenseInfo;
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CdmResponseType res = mCDM->QueryKeyStatus(cdmSessionId, &cdmLicenseInfo);
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if (isCdmResponseTypeSuccess(res)) {
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infoMap.clear();
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for (CdmQueryMap::const_iterator iter = cdmLicenseInfo.begin();
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iter != cdmLicenseInfo.end();
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++iter) {
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const string& cdmKey = iter->first;
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const string& cdmValue = iter->second;
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String8 key(cdmKey.data(), cdmKey.size());
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String8 value(cdmValue.data(), cdmValue.size());
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infoMap.add(key, value);
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}
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}
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return mapCdmResponseType(res);
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}
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status_t WVDrmPlugin::getProvisionRequest(Vector<uint8_t>& request,
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String8& defaultUrl) {
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CdmProvisioningRequest cdmProvisionRequest;
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string cdmDefaultUrl;
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CdmResponseType res = mCDM->GetProvisioningRequest(&cdmProvisionRequest,
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&cdmDefaultUrl);
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if (isCdmResponseTypeSuccess(res)) {
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request.clear();
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request.appendArray(reinterpret_cast<const uint8_t*>(
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cdmProvisionRequest.data()),
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cdmProvisionRequest.size());
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defaultUrl.clear();
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defaultUrl.setTo(cdmDefaultUrl.data(), cdmDefaultUrl.size());
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}
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return mapCdmResponseType(res);
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}
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status_t WVDrmPlugin::provideProvisionResponse(
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const Vector<uint8_t>& response) {
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CdmProvisioningResponse cdmResponse(response.begin(), response.end());
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CdmResponseType res = mCDM->HandleProvisioningResponse(cdmResponse);
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return mapCdmResponseType(res);
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}
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status_t WVDrmPlugin::getSecureStops(List<Vector<uint8_t> >& secureStops) {
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CdmSecureStops cdmSecureStops;
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CdmResponseType res = mCDM->GetSecureStops(&cdmSecureStops);
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if (isCdmResponseTypeSuccess(res)) {
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secureStops.clear();
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for (CdmSecureStops::const_iterator iter = cdmSecureStops.begin();
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iter != cdmSecureStops.end();
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++iter) {
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const string& cdmStop = *iter;
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Vector<uint8_t> stop;
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stop.appendArray(reinterpret_cast<const uint8_t*>(cdmStop.data()),
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cdmStop.size());
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secureStops.push_back(stop);
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}
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}
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return mapCdmResponseType(res);
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}
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status_t WVDrmPlugin::releaseSecureStops(const Vector<uint8_t>& ssRelease) {
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CdmSecureStopReleaseMessage cdmMessage(ssRelease.begin(), ssRelease.end());
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CdmResponseType res = mCDM->ReleaseSecureStops(cdmMessage);
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return mapCdmResponseType(res);
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}
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status_t WVDrmPlugin::getPropertyString(const String8& name,
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String8& value) const {
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if (name == "vendor") {
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value = "Google";
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} else if (name == "version") {
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value = "1.0";
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} else if (name == "description") {
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value = "Widevine CDM";
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} else if (name == "algorithms") {
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value = "AES/CBC/NoPadding,HmacSHA256";
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} else if (name == "securityLevel") {
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CdmQueryMap status;
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CdmResponseType res = mCDM->QueryStatus(&status);
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if (!isCdmResponseTypeSuccess(res)) {
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ALOGE("Error querying CDM status: %u", res);
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return mapCdmResponseType(res);
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} else if (!status.count(QUERY_KEY_SECURITY_LEVEL)) {
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ALOGE("CDM did not report a security level");
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return kErrorCDMGeneric;
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}
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value = status[QUERY_KEY_SECURITY_LEVEL].c_str();
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} else if (name == "systemId") {
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CdmQueryMap status;
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CdmResponseType res = mCDM->QueryStatus(&status);
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if (res != wvcdm::NO_ERROR) {
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ALOGE("Error querying CDM status: %u", res);
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return mapCdmResponseType(res);
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} else if (!status.count(QUERY_KEY_SYSTEM_ID)) {
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ALOGE("CDM did not report a system ID");
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return kErrorCDMGeneric;
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}
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value = status[QUERY_KEY_SYSTEM_ID].c_str();
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} else {
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ALOGE("App requested unknown property %s", name.string());
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return android::ERROR_DRM_CANNOT_HANDLE;
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}
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return android::OK;
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}
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status_t WVDrmPlugin::getPropertyByteArray(const String8& name,
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Vector<uint8_t>& value) const {
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if (name == "deviceUniqueId") {
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CdmQueryMap status;
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CdmResponseType res = mCDM->QueryStatus(&status);
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if (!isCdmResponseTypeSuccess(res)) {
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ALOGE("Error querying CDM status: %u", res);
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return mapCdmResponseType(res);
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} else if (!status.count(QUERY_KEY_DEVICE_ID)) {
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ALOGE("CDM did not report a unique ID");
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return kErrorCDMGeneric;
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}
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const string& uniqueId = status[QUERY_KEY_DEVICE_ID];
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value.clear();
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value.appendArray(reinterpret_cast<const uint8_t*>(uniqueId.data()),
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uniqueId.size());
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} else {
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ALOGE("App requested unknown property %s", name.string());
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return android::ERROR_DRM_CANNOT_HANDLE;
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}
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return android::OK;
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}
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status_t WVDrmPlugin::setPropertyString(const String8& name,
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const String8& value) {
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return android::ERROR_DRM_CANNOT_HANDLE;
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}
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status_t WVDrmPlugin::setPropertyByteArray(const String8& name,
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const Vector<uint8_t>& value) {
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return android::ERROR_DRM_CANNOT_HANDLE;
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}
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status_t WVDrmPlugin::setCipherAlgorithm(const Vector<uint8_t>& sessionId,
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const String8& algorithm) {
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CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
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if (!mCryptoSessions.count(cdmSessionId)) {
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return android::ERROR_DRM_SESSION_NOT_OPENED;
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}
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CryptoSession& cryptoSession = mCryptoSessions[cdmSessionId];
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if (algorithm == "AES/CBC/NoPadding") {
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cryptoSession.setCipherAlgorithm(OEMCrypto_AES_CBC_128_NO_PADDING);
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} else {
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return android::ERROR_DRM_CANNOT_HANDLE;
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}
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return android::OK;
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}
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status_t WVDrmPlugin::setMacAlgorithm(const Vector<uint8_t>& sessionId,
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const String8& algorithm) {
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CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
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if (!mCryptoSessions.count(cdmSessionId)) {
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return android::ERROR_DRM_SESSION_NOT_OPENED;
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}
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CryptoSession& cryptoSession = mCryptoSessions[cdmSessionId];
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if (algorithm == "HmacSHA256") {
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cryptoSession.setMacAlgorithm(OEMCrypto_HMAC_SHA256);
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} else {
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return android::ERROR_DRM_CANNOT_HANDLE;
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}
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return android::OK;
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}
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status_t WVDrmPlugin::encrypt(const Vector<uint8_t>& sessionId,
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const Vector<uint8_t>& keyId,
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const Vector<uint8_t>& input,
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const Vector<uint8_t>& iv,
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Vector<uint8_t>& output) {
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CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
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if (!mCryptoSessions.count(cdmSessionId)) {
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return android::ERROR_DRM_SESSION_NOT_OPENED;
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}
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const CryptoSession& cryptoSession = mCryptoSessions[cdmSessionId];
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if (cryptoSession.cipherAlgorithm() == kInvalidCrytpoAlgorithm) {
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return android::NO_INIT;
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}
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OEMCryptoResult res = mCrypto->selectKey(cryptoSession.oecSessionId(),
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keyId.array(), keyId.size());
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if (res != OEMCrypto_SUCCESS) {
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ALOGE("OEMCrypto_SelectKey failed with %u", res);
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return mapAndNotifyOfOEMCryptoResult(sessionId, res);
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}
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output.resize(input.size());
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res = mCrypto->encrypt(cryptoSession.oecSessionId(), input.array(),
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input.size(), iv.array(),
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cryptoSession.cipherAlgorithm(), output.editArray());
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if (res == OEMCrypto_SUCCESS) {
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return android::OK;
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} else {
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ALOGE("OEMCrypto_Generic_Encrypt failed with %u", res);
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return mapAndNotifyOfOEMCryptoResult(sessionId, res);
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}
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}
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status_t WVDrmPlugin::decrypt(const Vector<uint8_t>& sessionId,
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const Vector<uint8_t>& keyId,
|
|
const Vector<uint8_t>& input,
|
|
const Vector<uint8_t>& iv,
|
|
Vector<uint8_t>& output) {
|
|
CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
|
|
|
|
if (!mCryptoSessions.count(cdmSessionId)) {
|
|
return android::ERROR_DRM_SESSION_NOT_OPENED;
|
|
}
|
|
|
|
const CryptoSession& cryptoSession = mCryptoSessions[cdmSessionId];
|
|
|
|
if (cryptoSession.cipherAlgorithm() == kInvalidCrytpoAlgorithm) {
|
|
return android::NO_INIT;
|
|
}
|
|
|
|
OEMCryptoResult res = mCrypto->selectKey(cryptoSession.oecSessionId(),
|
|
keyId.array(), keyId.size());
|
|
|
|
if (res != OEMCrypto_SUCCESS) {
|
|
ALOGE("OEMCrypto_SelectKey failed with %u", res);
|
|
return mapAndNotifyOfOEMCryptoResult(sessionId, res);
|
|
}
|
|
|
|
output.resize(input.size());
|
|
|
|
res = mCrypto->decrypt(cryptoSession.oecSessionId(), input.array(),
|
|
input.size(), iv.array(),
|
|
cryptoSession.cipherAlgorithm(), output.editArray());
|
|
|
|
if (res == OEMCrypto_SUCCESS) {
|
|
return android::OK;
|
|
} else {
|
|
ALOGE("OEMCrypto_Generic_Decrypt failed with %u", res);
|
|
return mapAndNotifyOfOEMCryptoResult(sessionId, res);
|
|
}
|
|
}
|
|
|
|
status_t WVDrmPlugin::sign(const Vector<uint8_t>& sessionId,
|
|
const Vector<uint8_t>& keyId,
|
|
const Vector<uint8_t>& message,
|
|
Vector<uint8_t>& signature) {
|
|
CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
|
|
|
|
if (!mCryptoSessions.count(cdmSessionId)) {
|
|
return android::ERROR_DRM_SESSION_NOT_OPENED;
|
|
}
|
|
|
|
const CryptoSession& cryptoSession = mCryptoSessions[cdmSessionId];
|
|
|
|
if (cryptoSession.macAlgorithm() == kInvalidCrytpoAlgorithm) {
|
|
return android::NO_INIT;
|
|
}
|
|
|
|
OEMCryptoResult res = mCrypto->selectKey(cryptoSession.oecSessionId(),
|
|
keyId.array(), keyId.size());
|
|
|
|
if (res != OEMCrypto_SUCCESS) {
|
|
ALOGE("OEMCrypto_SelectKey failed with %u", res);
|
|
return mapAndNotifyOfOEMCryptoResult(sessionId, res);
|
|
}
|
|
|
|
size_t signatureSize = 0;
|
|
|
|
res = mCrypto->sign(cryptoSession.oecSessionId(), message.array(),
|
|
message.size(), cryptoSession.macAlgorithm(),
|
|
signature.editArray(), &signatureSize);
|
|
|
|
if (res != OEMCrypto_ERROR_SHORT_BUFFER) {
|
|
ALOGE("OEMCrypto_Generic_Sign failed with %u when requesting signature "
|
|
"size", res);
|
|
if (res != OEMCrypto_SUCCESS) {
|
|
return mapAndNotifyOfOEMCryptoResult(sessionId, res);
|
|
} else {
|
|
return android::ERROR_DRM_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
signature.resize(signatureSize);
|
|
|
|
res = mCrypto->sign(cryptoSession.oecSessionId(), message.array(),
|
|
message.size(), cryptoSession.macAlgorithm(),
|
|
signature.editArray(), &signatureSize);
|
|
|
|
if (res == OEMCrypto_SUCCESS) {
|
|
return android::OK;
|
|
} else {
|
|
ALOGE("OEMCrypto_Generic_Sign failed with %u", res);
|
|
return mapAndNotifyOfOEMCryptoResult(sessionId, res);
|
|
}
|
|
}
|
|
|
|
status_t WVDrmPlugin::verify(const Vector<uint8_t>& sessionId,
|
|
const Vector<uint8_t>& keyId,
|
|
const Vector<uint8_t>& message,
|
|
const Vector<uint8_t>& signature,
|
|
bool& match) {
|
|
CdmSessionId cdmSessionId(sessionId.begin(), sessionId.end());
|
|
|
|
if (!mCryptoSessions.count(cdmSessionId)) {
|
|
return android::ERROR_DRM_SESSION_NOT_OPENED;
|
|
}
|
|
|
|
const CryptoSession& cryptoSession = mCryptoSessions[cdmSessionId];
|
|
|
|
if (cryptoSession.macAlgorithm() == kInvalidCrytpoAlgorithm) {
|
|
return android::NO_INIT;
|
|
}
|
|
|
|
OEMCryptoResult res = mCrypto->selectKey(cryptoSession.oecSessionId(),
|
|
keyId.array(), keyId.size());
|
|
|
|
if (res != OEMCrypto_SUCCESS) {
|
|
ALOGE("OEMCrypto_SelectKey failed with %u", res);
|
|
return mapAndNotifyOfOEMCryptoResult(sessionId, res);
|
|
}
|
|
|
|
res = mCrypto->verify(cryptoSession.oecSessionId(), message.array(),
|
|
message.size(), cryptoSession.macAlgorithm(),
|
|
signature.array(), signature.size());
|
|
|
|
if (res == OEMCrypto_SUCCESS) {
|
|
match = true;
|
|
return android::OK;
|
|
} else if (res == OEMCrypto_ERROR_SIGNATURE_FAILURE) {
|
|
match = false;
|
|
return android::OK;
|
|
} else {
|
|
ALOGE("OEMCrypto_Generic_Verify failed with %u", res);
|
|
return mapAndNotifyOfOEMCryptoResult(sessionId, res);
|
|
}
|
|
}
|
|
|
|
void WVDrmPlugin::onEvent(const CdmSessionId& cdmSessionId,
|
|
CdmEventType cdmEventType) {
|
|
Vector<uint8_t> sessionId;
|
|
EventType eventType = kDrmPluginEventVendorDefined;
|
|
|
|
switch (cdmEventType) {
|
|
case LICENSE_EXPIRED_EVENT:
|
|
eventType = kDrmPluginEventKeyExpired;
|
|
break;
|
|
case LICENSE_RENEWAL_NEEDED_EVENT:
|
|
eventType = kDrmPluginEventKeyNeeded;
|
|
break;
|
|
}
|
|
|
|
sessionId.appendArray(reinterpret_cast<const uint8_t*>(cdmSessionId.data()),
|
|
cdmSessionId.size());
|
|
|
|
// Call base-class method with translated event.
|
|
sendEvent(eventType, 0, &sessionId, NULL);
|
|
}
|
|
|
|
status_t WVDrmPlugin::mapAndNotifyOfCdmResponseType(
|
|
const Vector<uint8_t>& sessionId,
|
|
CdmResponseType res) {
|
|
if (res == wvcdm::NEED_PROVISIONING) {
|
|
sendEvent(kDrmPluginEventProvisionRequired, 0, &sessionId, NULL);
|
|
} else if (res == wvcdm::NEED_KEY) {
|
|
sendEvent(kDrmPluginEventKeyNeeded, 0, &sessionId, NULL);
|
|
}
|
|
|
|
return mapCdmResponseType(res);
|
|
}
|
|
|
|
status_t WVDrmPlugin::mapAndNotifyOfOEMCryptoResult(
|
|
const Vector<uint8_t>& sessionId,
|
|
OEMCryptoResult res) {
|
|
// Note that we only cover those errors that OEMCryptoCENC.h states may be
|
|
// returned by the generic crypto methods.
|
|
switch (res) {
|
|
case OEMCrypto_SUCCESS:
|
|
return android::OK;
|
|
case OEMCrypto_ERROR_SIGNATURE_FAILURE:
|
|
return android::ERROR_DRM_TAMPER_DETECTED;
|
|
case OEMCrypto_ERROR_SHORT_BUFFER:
|
|
return kErrorIncorrectBufferSize;
|
|
case OEMCrypto_ERROR_NO_DEVICE_KEY:
|
|
sendEvent(kDrmPluginEventProvisionRequired, 0, &sessionId, NULL);
|
|
return android::ERROR_DRM_NOT_PROVISIONED;
|
|
case OEMCrypto_ERROR_INVALID_SESSION:
|
|
return android::ERROR_DRM_SESSION_NOT_OPENED;
|
|
case OEMCrypto_ERROR_UNKNOWN_FAILURE:
|
|
return android::ERROR_DRM_UNKNOWN;
|
|
default:
|
|
return android::UNKNOWN_ERROR;
|
|
}
|
|
}
|
|
|
|
} // namespace wvdrm
|