Merge "Sync the proto stats.proto from dns_resolver.proto (Need to match as aosp/968223)"

    // NS_R_BADSIG  = 16,

    NS_R_BADKEY = 17;

    NS_R_BADTIME = 18;

    NS_R_TIMEOUT = 255;

}

// Currently defined type values for resources and queries.

    IV_IPV6 = 2;

}

enum TransportType {

    TT_UNKNOWN = 0;

    TT_UDP = 1;

    TT_TCP = 2;

    TT_DOT = 3;

enum Protocol {

    PROTO_UNKNOWN = 0;

    PROTO_UDP = 1;

    PROTO_TCP = 2;

    PROTO_DOT = 3;

}

enum PrivateDnsModes {

    PDM_STRICT = 3;

}

enum Transport {

enum NetworkType {

    NT_UNKNOWN = 0;

    // Indicates this network uses a Cellular transport.

    TRANSPORT_DEFAULT = 0;  // TRANSPORT_CELLULAR

    NT_CELLULAR = 1;

    // Indicates this network uses a Wi-Fi transport.

    TRANSPORT_WIFI = 1;

    NT_WIFI = 2;

    // Indicates this network uses a Bluetooth transport.

    TRANSPORT_BLUETOOTH = 2;

    NT_BLUETOOTH = 3;

    // Indicates this network uses an Ethernet transport.

    TRANSPORT_ETHERNET = 3;

    NT_ETHERNET = 4;

    // Indicates this network uses a VPN transport.

    TRANSPORT_VPN = 4;

    NT_VPN = 5;

    // Indicates this network uses a Wi-Fi Aware transport.

    TRANSPORT_WIFI_AWARE = 5;

    NT_WIFI_AWARE = 6;

    // Indicates this network uses a LoWPAN transport.

    TRANSPORT_LOWPAN = 6;

    NT_LOWPAN = 7;

}

enum CacheStatus{

    optional IpVersion ip_version = 4;

    optional TransportType transport = 5;

    optional Protocol protocol = 5;

    // Number of DNS query retry times

    optional int32 retry_times = 6;

    // Ordinal number of name server.

    optional int32 dns_server_count = 7;

    optional int32 dns_server_index = 7;

    // Used only by TCP and DOT. True for new connections.

    optional bool connected = 8;

    // Only valid for event_type = EVENT_RESNSEND.

    optional int32 res_nsend_flags = 5;

    optional Transport network_type = 6;

    optional NetworkType network_type = 6;

    // The DNS over TLS mode on a specific netId.

    optional PrivateDnsModes private_dns_modes = 7;