Support SlicingConfig for 5G Slicing Configuration

- add new HAL APIs getSlicingConfig() and getSlicingConfigResponse()
- create structs SlicingConfig, UrspRule, RouteSelectionDescriptor,
  RouteSelectionDescriptorParams, Nssais, and RejectedSliceInfo
- add SliceRejectionCause

Bug: 178075054
Test: run "atest VtsHalRadioV1_6TargetTest" and check the result for
      getSlicingConfig is PASSED
[3/13] PerInstance/RadioHidlTest_v1_6#getSlicingConfig/0_slot1: PASSED (15ms)

Change-Id: I5dc97d3c49d0bf4726975a5558360ebf9c09224b

radio/1.6/IRadio.hal

@@ -505,4 +505,17 @@ interface IRadio extends @1.5::IRadio {
      * Response function is IRadioResponse.getCurrentCallsResponse_1_6()
      */
     oneway getCurrentCalls_1_6(int32_t serial);
+
+    /**
+     * Request to get the current slicing configuration including URSP rules and
+     * NSSAIs (configured, allowed and rejected).
+     * URSP stands for UE route selection policy and is defined in 3GPP TS 24.526
+     * Section 4.2.
+     * An NSSAI is a collection of network slices. Each network slice is identified by
+     * an S-NSSAI and is represented by the struct SliceInfo. NSSAI and S-NSSAI
+     * are defined in 3GPP TS 24.501.
+     *
+     * Response function is IRadioResponse.getSlicingConfigResponse()
+     */
+    oneway getSlicingConfig(int32_t serial);
 };

radio/1.6/IRadioResponse.hal

@@ -25,6 +25,7 @@ import @1.6::RegStateResult;
 import @1.6::RadioResponseInfo;
 import @1.6::SetupDataCallResult;
 import @1.6::SignalStrength;
+import @1.6::SlicingConfig;
 
 /**
  * Interface declaring response functions to solicited radio requests.
@@ -416,4 +417,17 @@ interface IRadioResponse extends @1.5::IRadioResponse {
      *   RadioError:CANCELLED
      */
     oneway getCurrentCallsResponse_1_6(RadioResponseInfo info, vec<Call> calls);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     * @param slicingConfig Current slicing configuration
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:MODEM_ERR
+     */
+    oneway getSlicingConfigResponse(RadioResponseInfo info,
+            SlicingConfig slicingConfig);
 };

radio/1.6/types.hal

@@ -971,3 +971,147 @@ struct OSAppId {
      */
     vec<uint8_t> osAppId;
 };
+
+/**
+ * This struct represents the current slicing configuration.
+ */
+struct SlicingConfig {
+    /**
+     * This vector contains the current URSP rules. Empty vector represents that no
+     * rules are configured.
+     */
+    vec<UrspRule> urspRules;
+    /**
+     * Struct containing all NSSAIs (list of slice info).
+     */
+    Nssais nsaids;
+};
+
+/**
+ * This struct represents a single URSP rule as defined in 3GPP TS 24.526.
+ */
+struct UrspRule {
+    /**
+     * Precedence value in the range of 0 to 255. Higher value has lower
+     * precedence.
+     */
+    uint8_t precedence;
+    /**
+     * Used as a matcher for network requests.
+     */
+    vec<TrafficDescriptor> trafficDescriptors;
+    /**
+     * List of routes (connection parameters) that must be used for requests
+     * matching a trafficDescriptor.
+     */
+    vec<RouteSelectionDescriptor> routeSelectionDescriptor;
+};
+
+
+/**
+ * This struct represents a single route selection descriptor as defined in
+ * 3GPP TS 24.526.
+ */
+struct RouteSelectionDescriptor {
+    /**
+     * Precedence value in the range of 0 to 255. Higher value has lower
+     * precedence.
+     */
+    uint8_t precedence;
+    /**
+     * Parameters defining this RouteSelectionDescriptor. The length of the vector
+     * must be >= 1.
+     */
+    vec<RouteSelectionDescriptorParams> routeSelectionDescriptorParams;
+};
+
+/**
+ * This struct represents a route selection descriptor. A valid struct must have
+ * at least one of the vectors non-empty.
+ */
+struct RouteSelectionDescriptorParams {
+    /**
+     * Valid values are IP, IPV6 and IPV4V6.
+     */
+    OptionalPdpProtocolType sessionType;
+    OptionalSscMode sscMode;
+    /**
+     * There can be 0 or more SliceInfo specified in a route descriptor.
+     */
+    vec<SliceInfo> sliceInfo;
+    /**
+     * DNN stands for Data Network Name and represents an APN as defined in
+     * 3GPP TS 23.003. There can be 0 or more DNNs specified in a route
+     * descriptor.
+     */
+    vec<string> dnn;
+};
+
+/**
+ * This safe_union represents an optional PdpProtocolType.
+ */
+safe_union OptionalPdpProtocolType {
+    Monostate noinit;
+    PdpProtocolType value;
+};
+
+/**
+ * This safe_union represents an optional SscMode.
+ */
+safe_union OptionalSscMode {
+    Monostate noinit;
+    SscMode value;
+};
+
+/**
+ * This struct contains all NSSAIs (lists of slices).
+ */
+struct Nssais {
+    /**
+     * These are all the slices configured by the network. This includes allowed
+     * and rejected slices, as well as slices that are neither allowed nor rejected
+     * yet. Empty vector indicates that no slices are configured, and in that case
+     * allowed and rejected vectors must be empty as well.
+     */
+    vec<SliceInfo> configured;
+    /**
+     * These are all the slices that the UE is allowed to use. All these slices
+     * must be configured as well. Empty vector indicates that no slices are
+     * allowed yet.
+     */
+    vec<SliceInfo> allowed;
+    /**
+     * These are all the slices that the UE is not allowed to use. All these slices
+     * must be configured as well. Empty vector indicates that no slices are
+     * rejected yet.
+     */
+    vec<RejectedSliceInfo> rejected;
+    /**
+     * Default configured NSSAI
+     */
+    vec<SliceInfo> defaultConfigured;
+};
+
+/**
+ * This struct represents a network slice rejected by the network. It contains a
+ * rejectionCause corresponding to a rejected network slice.
+ */
+struct RejectedSliceInfo {
+    SliceInfo sliceInfo;
+    SliceRejectionCause rejectionCause;
+};
+
+enum SliceRejectionCause : int32_t {
+    NOT_AVAILABLE_IN_PLMN,
+    NOT_AVAILABLE_IN_REG_AREA,
+};
+
+/**
+ * Enum representing session and service continuity mode as defined in
+ * 3GPP TS 23.501.
+ */
+enum SscMode : int32_t {
+    MODE_1 = 1,
+    MODE_2 = 2,
+    MODE_3 = 3,
+};

radio/1.6/vts/functional/radio_hidl_hal_api.cpp

@@ -163,6 +163,18 @@ TEST_P(RadioHidlTest_v1_6, setupDataCall_1_6_osAppId) {
     }
 }
 
+/*
+ * Test IRadio.getSlicingConfig() for the response returned.
+ */
+TEST_P(RadioHidlTest_v1_6, getSlicingConfig) {
+    serial = GetRandomSerialNumber();
+    radio_v1_6->getSlicingConfig(serial);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_v1_6->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_v1_6->rspInfo.serial);
+    EXPECT_EQ(::android::hardware::radio::V1_6::RadioError::NONE, radioRsp_v1_6->rspInfo.error);
+}
+
 /*
  * Test IRadio_1_6.sendSms() for the response returned.
  */

radio/1.6/vts/functional/radio_hidl_hal_utils_v1_6.h

@@ -827,6 +827,10 @@ class RadioResponse_v1_6 : public ::android::hardware::radio::V1_6::IRadioRespon
     Return<void> getCurrentCallsResponse_1_6(
             const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
             const ::android::hardware::hidl_vec<::android::hardware::radio::V1_6::Call>& calls);
+
+    Return<void> getSlicingConfigResponse(
+            const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
+            const ::android::hardware::radio::V1_6::SlicingConfig& slicingConfig);
 };
 
 /* Callback class for radio indication */

radio/1.6/vts/functional/radio_response.cpp

@@ -1220,3 +1220,11 @@ Return<void> RadioResponse_v1_6::getCurrentCallsResponse_1_6(
     parent_v1_6.notify(info.serial);
     return Void();
 }
+
+Return<void> RadioResponse_v1_6::getSlicingConfigResponse(
+        const ::android::hardware::radio::V1_6::RadioResponseInfo& info,
+        const ::android::hardware::radio::V1_6::SlicingConfig& /*slicingConfig*/) {
+    rspInfo = info;
+    parent_v1_6.notify(info.serial);
+    return Void();
+}