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wv hidl: only mediashell/mediadrmserver can call signRSA

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Merge of go/wvgerrit/93524

Bug: 134787536
Bug: 148895349
Test: VtsHalDrmV1_3TargetTest
Change-Id: I48fb63d044271243fa1d290443d437f0697994d3
This commit is contained in:
Robert Shih
2020-02-12 20:02:34 -08:00
parent 5a08937110
commit be7b89e155
1 changed files with 10 additions and 0 deletions
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10
libwvdrmengine/mediadrm/src_hidl/WVDrmPlugin.cpp
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@@ -6,8 +6,10 @@
//#define LOG_NDEBUG 0
#define LOG_TAG "WVCdm"
#include <hwbinder/IPCThreadState.h>
#include <utils/Log.h>
#include <cstring>
#include <list>
#include <stdlib.h>
#include <string>
@@ -1721,6 +1723,14 @@ Return<void> WVDrmPlugin::signRSA(
const hidl_vec<uint8_t>& wrappedKey,
signRSA_cb _hidl_cb) {
const auto& self = android::hardware::IPCThreadState::self();
const char* sid = self->getCallingSid();
if (!sid || (!strstr(sid, "mediashell_app") && !strstr(sid, "mediadrmserver"))) {
ALOGE("Only mediashell/mediadrmserver can call signRSA");
_hidl_cb(Status::ERROR_DRM_UNKNOWN, hidl_vec<uint8_t>());
return Void();
}
if (sessionId.size() == 0 || algorithm.size() == 0 ||
message.size() == 0 || wrappedKey.size() == 0) {
_hidl_cb(Status::BAD_VALUE, hidl_vec<uint8_t>());