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Allow Secure Stops to be queried and deleted by application ID

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This CL changes the WVDrmPlugin so that an application can segregate
its secure stops from those of other applications by setting an
application ID.

This CL is a merge of the following Widevine CLs:
https://widevine-internal-review.googlesource.com/#/c/11565/
Add getSecureStop by ssid

https://widevine-internal-review.googlesource.com/#/c/11572
Add getSecureStop by SSID and releaseAllSecureStops by app id.

https://widevine-internal-review.googlesource.com/#/c/11564/
Store Usage Info by App Id (device_file stubs)

https://widevine-internal-review.googlesource.com/#/c/11563/
Add application id to StoreUsageInfo.

https://widevine-internal-review.googlesource.com/#/c/11561/
Added Application ID to PropertySet for secure stop.

bug: 18053197
bug: 18076411
Change-Id: I5444baf67ba1b960dee2dc958bced8de82ab70a3
This commit is contained in:
Fred Gylys-Colwell
2014-11-05 17:39:44 -08:00
parent b3650a9661
commit 20191d996c
19 changed files with 421 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
libwvdrmengine/mediadrm/src/WVDrmPlugin.cpp
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@@ -23,7 +23,6 @@ namespace {
static const char* const kResetSecurityLevel = "";
static const char* const kEnable = "enable";
static const char* const kDisable = "disable";
static const std::string kPsshTag = "pssh";
}
@@ -394,9 +393,30 @@ status_t WVDrmPlugin::unprovisionDevice() {
}
}
status_t WVDrmPlugin::getSecureStop(const Vector<uint8_t>& ssid,
Vector<uint8_t>& secureStop) {
CdmUsageInfo cdmUsageInfo;
CdmSecureStopId cdmSsid(ssid.begin(), ssid.end());
CdmResponseType res = mCDM->GetUsageInfo(
mPropertySet.app_id(), cdmSsid, &cdmUsageInfo);
if (isCdmResponseTypeSuccess(res)) {
secureStop.clear();
for (CdmUsageInfo::const_iterator iter = cdmUsageInfo.begin();
iter != cdmUsageInfo.end();
++iter) {
const string& cdmStop = *iter;
secureStop.appendArray(reinterpret_cast<const uint8_t*>(cdmStop.data()),
cdmStop.size());
}
}
return mapCdmResponseType(res);
}
status_t WVDrmPlugin::getSecureStops(List<Vector<uint8_t> >& secureStops) {
CdmUsageInfo cdmUsageInfo;
CdmResponseType res = mCDM->GetUsageInfo(&cdmUsageInfo);
CdmResponseType res =
mCDM->GetUsageInfo(mPropertySet.app_id(), &cdmUsageInfo);
if (isCdmResponseTypeSuccess(res)) {
secureStops.clear();
for (CdmUsageInfo::const_iterator iter = cdmUsageInfo.begin();
@@ -414,6 +434,11 @@ status_t WVDrmPlugin::getSecureStops(List<Vector<uint8_t> >& secureStops) {
return mapCdmResponseType(res);
}
status_t WVDrmPlugin::releaseAllSecureStops() {
CdmResponseType res = mCDM->ReleaseAllUsageInfo(mPropertySet.app_id());
return mapCdmResponseType(res);
}
status_t WVDrmPlugin::releaseSecureStops(const Vector<uint8_t>& ssRelease) {
CdmUsageInfoReleaseMessage cdmMessage(ssRelease.begin(), ssRelease.end());
CdmResponseType res = mCDM->ReleaseUsageInfo(cdmMessage);
@@ -628,6 +653,18 @@ status_t WVDrmPlugin::setPropertyString(const String8& name,
ALOGE("App tried to change key sharing while sessions are open.");
return kErrorSessionIsOpen;
}
} else if (name == "appId") {
size_t sessionCount = 0;
{
Mutex::Autolock lock(mCryptoSessionsMutex);
sessionCount = mCryptoSessions.size();
}
if (sessionCount == 0) {
mPropertySet.set_app_id(value.string());
} else {
ALOGE("App tried to set the application id while sessions are opened.");
return kErrorSessionIsOpen;
}
} else {
ALOGE("App set unknown string property %s", name.string());
return android::ERROR_DRM_CANNOT_HANDLE;