Add ro.serialno sysprop to JSON output
To help with error reporting on the RKP servers in the future it
will be helpful to be able to address CSRs by serial number when
possible.
Bug: 264302050
Test: libkeymint_remote_prov_support_test and sent JSON to server
Change-Id: I2808441c200d0679e618580abc464cd3c71c220e
diff --git a/security/keymint/support/remote_prov_utils.cpp b/security/keymint/support/remote_prov_utils.cpp
index 7e164fd..ea0fbd8 100644
--- a/security/keymint/support/remote_prov_utils.cpp
+++ b/security/keymint/support/remote_prov_utils.cpp
@@ -417,6 +417,7 @@
JsonOutput jsonEncodeCsrWithBuild(const std::string instance_name, const cppbor::Array& csr) {
const std::string kFingerprintProp = "ro.build.fingerprint";
+ const std::string kSerialNoProp = "ro.serialno";
if (!::android::base::WaitForPropertyCreation(kFingerprintProp)) {
return JsonOutput::Error("Unable to read build fingerprint");
@@ -441,6 +442,7 @@
Json::Value json(Json::objectValue);
json["name"] = instance_name;
json["build_fingerprint"] = ::android::base::GetProperty(kFingerprintProp, /*default=*/"");
+ json["serialno"] = ::android::base::GetProperty(kSerialNoProp, /*default=*/"");
json["csr"] = base64.data(); // Boring writes a NUL-terminated c-string
Json::StreamWriterBuilder factory;
diff --git a/security/keymint/support/remote_prov_utils_test.cpp b/security/keymint/support/remote_prov_utils_test.cpp
index 0250cd6..eaaba45 100644
--- a/security/keymint/support/remote_prov_utils_test.cpp
+++ b/security/keymint/support/remote_prov_utils_test.cpp
@@ -191,7 +191,8 @@
std::string expected = R"({"build_fingerprint":")" +
::android::base::GetProperty("ro.build.fingerprint", /*default=*/"") +
- R"(","csr":"gQE=","name":"test"})";
+ R"(","csr":"gQE=","name":"test","serialno":")" +
+ ::android::base::GetProperty("ro.serialno", /*default=*/"") + R"("})";
ASSERT_EQ(json, expected);
}