Implemented INITIAL_USER_INFO.
This property is called by Android when it starts, and it's expecting a
property change indicating what the initial user should be.
During normal circumstances, the emulator will reply right away, passing a
response if InitialUserInfoResponseAction::DEFAULT (so Android could use its
own logic to decide which user to boot).
But during development / testing, the behavior can be changed using lshal dump,
so the following scenarios can be tested:
- property timeout
- HAL response using a different request id
- user switch
- user creation
Bug: 146207078
Test: manual tests with lshal and a modified CarServiceHelper
Test: atest android.hardware.automotive.vehicle@2.0-manager-unit-tests \
android.hardware.automotive.vehicle@2.0-default-impl-unit-tests
Change-Id: Ia5be62c8b19a168c0c6da5307169fc14bf3069c9
diff --git a/automotive/vehicle/2.0/default/common/src/VehicleHalManager.cpp b/automotive/vehicle/2.0/default/common/src/VehicleHalManager.cpp
index 4249a61..4f42e63 100644
--- a/automotive/vehicle/2.0/default/common/src/VehicleHalManager.cpp
+++ b/automotive/vehicle/2.0/default/common/src/VehicleHalManager.cpp
@@ -28,6 +28,8 @@
#include <hwbinder/IPCThreadState.h>
+#include <utils/SystemClock.h>
+
#include "VehicleUtils.h"
// TODO: figure out how to include private/android_filesystem_config.h instead...
@@ -247,10 +249,11 @@
dprintf(fd, "--get <PROP1> [PROP2] [PROPN]: dumps the value of specific properties \n");
// TODO: support other formats (int64, float, bytes)
dprintf(fd,
- "--set <PROP> <i|s> <VALUE_1> [<i|s> <VALUE_N>]: sets the value of property PROP, using"
- " arbitrary number of key/value parameters (i for int32, s for string). Notice that "
- "the string value can be set just once, while the other can have multiple values "
- "(so they're used in the respective array)\n");
+ "--set <PROP> <i|s> <VALUE_1> [<i|s> <VALUE_N>] [a AREA_ID] : sets the value of "
+ "property PROP, using arbitrary number of key/value parameters (i for int32, "
+ "s for string) and an optional area.\n"
+ "Notice that the string value can be set just once, while the other can have multiple "
+ "values (so they're used in the respective array)\n");
}
void VehicleHalManager::cmdListAllProperties(int fd) const {
@@ -352,13 +355,13 @@
VehiclePropValue prop;
if (!safelyParseInt(fd, 1, options[1], &prop.prop)) return;
- prop.timestamp = 0;
- prop.areaId = 0; // TODO: add option to pass areaId as parameter
+ prop.timestamp = elapsedRealtimeNano();
prop.status = VehiclePropertyStatus::AVAILABLE;
- // First pass calculate sizes
+ // First pass: calculate sizes
int sizeInt32 = 0;
int stringIndex = 0;
+ int areaIndex = 0;
for (int i = 2, kv = 1; kv <= numberValues; kv++) {
// iterate through the kv=1..n key/value pairs, accessing indexes i / i+1 at each step
std::string type = options[i];
@@ -374,6 +377,15 @@
return;
}
stringIndex = i;
+ } else if (EqualsIgnoreCase(type, "a")) {
+ if (areaIndex != 0) {
+ dprintf(fd,
+ "defining area value (%s) again at index %d (already defined at %d=%s"
+ ")\n",
+ value.c_str(), i, areaIndex, options[areaIndex + 1].c_str());
+ return;
+ }
+ areaIndex = i;
} else {
dprintf(fd, "invalid (%s) type at index %d\n", type.c_str(), i);
return;
@@ -395,6 +407,8 @@
prop.value.int32Values[indexInt32++] = safeInt;
} else if (EqualsIgnoreCase(type, "s")) {
prop.value.stringValue = value;
+ } else if (EqualsIgnoreCase(type, "a")) {
+ if (!safelyParseInt(fd, valueIndex, value, &prop.areaId)) return;
}
i += 2;
}
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
index e19987c..785f0e0 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/DefaultConfig.h
@@ -76,6 +76,7 @@
constexpr int WHEEL_FRONT_RIGHT = (int)VehicleAreaWheel::RIGHT_FRONT;
constexpr int WHEEL_REAR_LEFT = (int)VehicleAreaWheel::LEFT_REAR;
constexpr int WHEEL_REAR_RIGHT = (int)VehicleAreaWheel::RIGHT_REAR;
+constexpr int INITIAL_USER_INFO = (int)VehicleProperty::INITIAL_USER_INFO;
/**
* This property is used for test purpose to generate fake events. Here is the test package that
@@ -990,6 +991,16 @@
(int)VehicleVendorPermission::PERMISSION_DEFAULT},
},
.initialValue = {.int32Values = {1}}},
+
+ {
+ .config =
+ {
+ .prop = toInt(VehicleProperty::INITIAL_USER_INFO),
+ .access = VehiclePropertyAccess::READ_WRITE,
+ .changeMode = VehiclePropertyChangeMode::ON_CHANGE,
+ },
+ },
+
};
} // impl
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.cpp b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.cpp
index d9867bd..197c6db 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.cpp
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.cpp
@@ -13,6 +13,9 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+
+#define LOG_TAG "automotive.vehicle@2.0-connector"
+
#include <android-base/logging.h>
#include <utils/SystemClock.h>
@@ -261,6 +264,8 @@
break;
}
break;
+ case INITIAL_USER_INFO:
+ return onSetInitialUserInfo(value, updateStatus);
default:
break;
}
@@ -274,6 +279,97 @@
return StatusCode::OK;
}
+/**
+ * INITIAL_USER_INFO is called by Android when it starts, and it's expecting a property change
+ * indicating what the initial user should be.
+ *
+ * During normal circumstances, the emulator will reply right away, passing a response if
+ * InitialUserInfoResponseAction::DEFAULT (so Android could use its own logic to decide which user
+ * to boot).
+ *
+ * But during development / testing, the behavior can be changed using lshal dump, which must use
+ * the areaId to indicate what should happen next.
+ *
+ * So, the behavior of set(INITIAL_USER_INFO) is:
+ *
+ * - if it has an areaId, store the property into mInitialUserResponseFromCmd (as it was called by
+ * lshal).
+ * - else if mInitialUserResponseFromCmd is not set, return a response with the same request id and
+ * InitialUserInfoResponseAction::DEFAULT
+ * - else the behavior is defined by the areaId on mInitialUserResponseFromCmd:
+ * - if it's 1, reply with mInitialUserResponseFromCmd and the right request id
+ * - if it's 2, reply with mInitialUserResponseFromCmd but a wrong request id (so Android can test
+ * this error scenario)
+ * - if it's 3, then don't send a property change (so Android can emulate a timeout)
+ *
+ */
+StatusCode EmulatedVehicleServer::onSetInitialUserInfo(const VehiclePropValue& value,
+ bool updateStatus) {
+ // TODO: LOG calls below might be more suited to be DEBUG, but those are not being logged
+ // (even when explicitly calling setprop log.tag. As this class should be using ALOG instead of
+ // LOG, it's not worth investigating why...
+
+ if (value.areaId != 0) {
+ LOG(INFO) << "set(INITIAL_USER_INFO) called from lshal; storing it: " << toString(value);
+ mInitialUserResponseFromCmd.reset(new VehiclePropValue(value));
+ return StatusCode::OK;
+ }
+ LOG(INFO) << "set(INITIAL_USER_INFO) called from Android: " << toString(value);
+
+ if (value.value.int32Values.size() == 0) {
+ LOG(ERROR) << "invalid request (no requestId): " << toString(value);
+ return StatusCode::INVALID_ARG;
+ }
+ int32_t requestId = value.value.int32Values[0];
+
+ // Create the update property and set common values
+ auto updatedValue = createVehiclePropValue(VehiclePropertyType::MIXED, 0);
+ updatedValue->prop = INITIAL_USER_INFO;
+ updatedValue->timestamp = elapsedRealtimeNano();
+
+ if (mInitialUserResponseFromCmd == nullptr) {
+ updatedValue->value.int32Values.resize(2);
+ updatedValue->value.int32Values[0] = requestId;
+ updatedValue->value.int32Values[1] = (int32_t)InitialUserInfoResponseAction::DEFAULT;
+ LOG(INFO) << "no lshal response; returning InitialUserInfoResponseAction::DEFAULT: "
+ << toString(*updatedValue);
+ onPropertyValueFromCar(*updatedValue, updateStatus);
+ return StatusCode::OK;
+ }
+
+ // mInitialUserResponseFromCmd is used for just one request
+ std::unique_ptr<VehiclePropValue> response = std::move(mInitialUserResponseFromCmd);
+
+ // TODO(b/138709788): rather than populate the raw values directly, it should use the
+ // libraries that convert a InitialUserInfoResponse into a VehiclePropValue)
+
+ switch (response->areaId) {
+ case 1:
+ LOG(INFO) << "returning response with right request id";
+ *updatedValue = *response;
+ updatedValue->areaId = 0;
+ updatedValue->value.int32Values[0] = requestId;
+ break;
+ case 2:
+ LOG(INFO) << "returning response with wrong request id";
+ *updatedValue = *response;
+ updatedValue->areaId = 0;
+ updatedValue->value.int32Values[0] = -requestId;
+ break;
+ case 3:
+ LOG(INFO) << "not generating a property change event because of lshal prop: "
+ << toString(*response);
+ return StatusCode::OK;
+ default:
+ LOG(ERROR) << "invalid action on lshal response: " << toString(*response);
+ return StatusCode::INTERNAL_ERROR;
+ }
+
+ LOG(INFO) << "updating property to: " << toString(*updatedValue);
+ onPropertyValueFromCar(*updatedValue, updateStatus);
+ return StatusCode::OK;
+}
+
EmulatedPassthroughConnectorPtr makeEmulatedPassthroughConnector() {
return std::make_unique<EmulatedPassthroughConnector>();
}
diff --git a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.h b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.h
index 5fc6493..6d927b0 100644
--- a/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.h
+++ b/automotive/vehicle/2.0/default/impl/vhal_v2_0/EmulatedVehicleConnector.h
@@ -77,6 +77,10 @@
std::bind(&EmulatedVehicleServer::onFakeValueGenerated, this, std::placeholders::_1)};
VehiclePropValuePool* mValuePool{nullptr};
+
+ // TODO(b/146207078): it might be clearer to move members below to an EmulatedUserHal class
+ std::unique_ptr<VehiclePropValue> mInitialUserResponseFromCmd;
+ StatusCode onSetInitialUserInfo(const VehiclePropValue& value, bool updateStatus);
};
// Helper functions