Merge "Use static map for VPN profile type in VpnConnectivityMetrics" into main

import android.net.VpnManager;

import android.util.Log;

import android.util.SparseArray;

import android.util.SparseIntArray;

import androidx.annotation.NonNull;

import androidx.annotation.VisibleForTesting;

import com.android.internal.net.VpnProfile;

import com.android.internal.util.FrameworkStatsLog;

import java.net.Inet4Address;

    @VisibleForTesting

    static final int IP_PROTOCOL_IPv4v6 = 3;

    private static final SparseArray<String> sAlgorithms = new SparseArray<>();

    /**

     * A static mapping from {@link VpnProfile} types to the corresponding integer values

     * defined in the {@code VpnProfileType} enum for metrics reporting. This allows for a

     * direct and efficient lookup of the profile type integer based on the VpnProfile constant.

     */

    private static final SparseIntArray sVpnProfileTypeMap = new SparseIntArray();

    private final int mUserId;

    @NonNull

    private final ConnectivityManager mConnectivityManager;

    private int mVpnNetworkIpProtocol = IP_PROTOCOL_UNKNOWN;

    private int mServerIpProtocol = IP_PROTOCOL_UNKNOWN;

    // Static initializer block to populate the sAlgorithms mapping. It associates integer keys

    // (which also serve as bit positions for the mAllowedAlgorithms bitmask) with their

    // respective algorithm string constants.

    // Static initializer block to populate the sAlgorithms and sVpnProfileTypeMap mappings.

    // For sAlgorithms, it associates integer keys (which also serve as bit positions for the

    // mAllowedAlgorithms bitmask) with their respective algorithm string constants.

    // For sVpnProfileTypeMap, it maps VpnProfile types to their corresponding enum values.

    static {

        sAlgorithms.put(0, AUTH_AES_CMAC);

        sAlgorithms.put(1, AUTH_AES_XCBC);

        sAlgorithms.put(8, AUTH_HMAC_SHA512);

        sAlgorithms.put(9, CRYPT_AES_CBC);

        sAlgorithms.put(10, CRYPT_AES_CTR);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_PPTP, 1 /* VpnProfileType.TYPE_PPTP */);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_L2TP_IPSEC_PSK,

                2 /* VpnProfileType.TYPE_L2TP_IPSEC_PSK */);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_L2TP_IPSEC_RSA,

                3 /* VpnProfileType.TYPE_L2TP_IPSEC_RSA */);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_IPSEC_XAUTH_PSK,

                4 /* VpnProfileType.TYPE_TYPE_IPSEC_XAUTH_PSK */);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_IPSEC_XAUTH_RSA,

                5 /* VpnProfileType.TYPE_IPSEC_XAUTH_RSA */);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_IPSEC_HYBRID_RSA,

                6 /* VpnProfileType.TYPE_IPSEC_HYBRID_RSA */);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_IKEV2_IPSEC_USER_PASS,

                7 /* VpnProfileType.TYPE_IKEV2_IPSEC_USER_PASS */);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_IKEV2_IPSEC_PSK,

                8 /* VpnProfileType.TYPE_IKEV2_IPSEC_PSK */);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_IKEV2_IPSEC_RSA,

                9 /* VpnProfileType.TYPE_IKEV2_IPSEC_RSA */);

        sVpnProfileTypeMap.put(VpnProfile.TYPE_IKEV2_FROM_IKE_TUN_CONN_PARAMS,

                10 /* VpnProfileType.TYPE_IKEV2_FROM_IKE_TUN_CONN_PARAMS */);

    }

    /**

     * @param vpnProfile The integer value representing the VPN profile.

     */

    public void setVpnProfileType(int vpnProfile) {

        // There is a shift (+1) between VpnProfileType and VpnProfile.

        mVpnProfileType = vpnProfile + 1;

        mVpnProfileType = sVpnProfileTypeMap.get(vpnProfile, VPN_PROFILE_TYPE_UNKNOWN);

    }

    /**