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Merge "Test the format of patch level device info" into main

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This commit is contained in:
Andrew Scull
2023-09-01 20:29:31 +00:00
committed by Gerrit Code Review
parent bb1e84f27f e780dbf0d0
commit 92bd93934a
1 changed files with 35 additions and 0 deletions
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35
security/keymint/support/remote_prov_utils.cpp
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@@ -14,6 +14,7 @@
* limitations under the License.
*/
#include <iomanip>
#include <iterator>
#include <memory>
#include <set>
@@ -420,6 +421,36 @@ std::string checkMapEntry(bool isFactory, const cppbor::Map& devInfo, cppbor::Ma
return entryName + " has an invalid value.\n";
}
std::string checkMapPatchLevelEntry(bool isFactory, const cppbor::Map& devInfo,
const std::string& entryName) {
std::string error = checkMapEntry(isFactory, devInfo, cppbor::UINT, entryName);
if (!error.empty()) {
return error;
}
if (isFactory) {
return "";
}
const std::unique_ptr<cppbor::Item>& val = devInfo.get(entryName);
std::string dateString = std::to_string(val->asUint()->unsignedValue());
if (dateString.size() == 6) {
dateString += "01";
}
if (dateString.size() != 8) {
return entryName + " should in the format YYYYMMDD or YYYYMM\n";
}
std::tm t;
std::istringstream ss(dateString);
ss >> std::get_time(&t, "%Y%m%d");
if (!ss) {
return entryName + " should in the format YYYYMMDD or YYYYMM\n";
}
return "";
}
bool isTeeDeviceInfo(const cppbor::Map& devInfo) {
return devInfo.get("security_level") && devInfo.get("security_level")->asTstr() &&
devInfo.get("security_level")->asTstr()->value() == "tee";
@@ -520,6 +551,10 @@ ErrMsgOr<std::unique_ptr<cppbor::Map>> parseAndValidateDeviceInfo(
error += "Err: Unrecognized key entry: <" + key->asTstr()->value() + ">,\n";
}
}
// Checks that only apply to v3.
error += checkMapPatchLevelEntry(isFactory, *parsed, "system_patch_level");
error += checkMapPatchLevelEntry(isFactory, *parsed, "boot_patch_level");
error += checkMapPatchLevelEntry(isFactory, *parsed, "vendor_patch_level");
FALLTHROUGH_INTENDED;
case 2:
for (const auto& entry : kAttestationIdEntrySet) {