/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

syntax = "proto2";

package android.stats.connectivity;
option java_multiple_files = true;
option java_outer_classname = "NetworkStackProto";

enum DhcpRenewResult {
    RR_UNKNOWN = 0;
    RR_SUCCESS = 1;
    RR_ERROR_NAK = 2;
    RR_ERROR_IP_MISMATCH = 3;
    RR_ERROR_IP_EXPIRE = 4;
}

enum DisconnectCode {
    DC_NONE = 0;
    DC_NORMAL_TERMINATION = 1;
    DC_PROVISIONING_FAIL = 2;
    DC_ERROR_STARTING_IPV4 = 4;
    DC_ERROR_STARTING_IPV6 = 5;
    DC_ERROR_STARTING_IPREACHABILITYMONITOR = 6;
    DC_INVALID_PROVISIONING = 7;
    DC_INTERFACE_NOT_FOUND = 8;
    DC_PROVISIONING_TIMEOUT = 9;
}

enum TransportType {
    TT_UNKNOWN = 0;
    // Indicates this network uses a Cellular transport
    TT_CELLULAR = 1;
    // Indicates this network uses a Wi-Fi transport
    TT_WIFI = 2;
    // Indicates this network uses a Bluetooth transport
    TT_BLUETOOTH = 3;
    // Indicates this network uses an Ethernet transport
    TT_ETHERNET = 4;
    // Indicates this network uses a Wi-Fi Aware transport
    TT_WIFI_AWARE = 5;
    // Indicates this network uses a LoWPAN transport
    TT_LOWPAN = 6;
    // Indicates this network uses a Cellular+VPN transport
    TT_CELLULAR_VPN = 7;
    // Indicates this network uses a Wi-Fi+VPN transport
    TT_WIFI_VPN = 8;
    // Indicates this network uses a Bluetooth+VPN transport
    TT_BLUETOOTH_VPN = 9;
    // Indicates this network uses an Ethernet+VPN transport
    TT_ETHERNET_VPN = 10;
    // Indicates this network uses a Wi-Fi+Cellular+VPN transport
    TT_WIFI_CELLULAR_VPN = 11;
    // Indicates this network uses for test only
    TT_TEST = 12;
}

enum DhcpFeature {
    DF_UNKNOWN = 0;
    // DHCP INIT-REBOOT state
    DF_INITREBOOT = 1;
    // DHCP rapid commit option
    DF_RAPIDCOMMIT  = 2;
    // Duplicate address detection
    DF_DAD = 3;
    // Fast initial Link setup
    DF_FILS = 4;
}

enum HostnameTransResult {
    HTR_UNKNOWN = 0;
    HTR_SUCCESS = 1;
    HTR_FAILURE = 2;
    HTR_DISABLE = 3;
}

enum ProbeResult {
    PR_UNKNOWN = 0;
    PR_SUCCESS = 1;
    PR_FAILURE = 2;
    PR_PORTAL = 3;
    // DNS query for the probe host returned a private IP address
    PR_PRIVATE_IP_DNS = 4;
}

enum ValidationResult {
    VR_UNKNOWN = 0;
    VR_SUCCESS = 1;
    VR_FAILURE = 2;
    VR_PORTAL = 3;
    VR_PARTIAL = 4;
}

enum ProbeType {
    PT_UNKNOWN = 0;
    PT_DNS       = 1;
    PT_HTTP      = 2;
    PT_HTTPS     = 3;
    PT_PAC       = 4;
    PT_FALLBACK  = 5;
    PT_PRIVDNS   = 6;
    PT_CAPPORT_API = 7;
}

// The Dhcp error code is defined in android.net.metrics.DhcpErrorEvent
enum DhcpErrorCode {
    ET_UNKNOWN = 0;
    ET_L2_ERROR = 1;
    ET_L3_ERROR = 2;
    ET_L4_ERROR = 3;
    ET_DHCP_ERROR = 4;
    ET_MISC_ERROR = 5;
    /* Reserve for error type
    // ET_L2_ERROR_TYPE = ET_L2_ERROR << 8;
    ET_L2_ERROR_TYPE = 256;
    // ET_L3_ERROR_TYPE = ET_L3_ERROR << 8;
    ET_L3_ERROR_TYPE = 512;
    // ET_L4_ERROR_TYPE = ET_L4_ERROR << 8;
    ET_L4_ERROR_TYPE = 768;
    // ET_DHCP_ERROR_TYPE = ET_DHCP_ERROR << 8;
    ET_DHCP_ERROR_TYPE = 1024;
    // ET_MISC_ERROR_TYPE = ET_MISC_ERROR << 8;
    ET_MISC_ERROR_TYPE = 1280;
    */
    // ET_L2_TOO_SHORT = (ET_L2_ERROR_TYPE | 0x1) << 16;
    ET_L2_TOO_SHORT = 16842752;
    // ET_L2_WRONG_ETH_TYPE = (ET_L2_ERROR_TYPE | 0x2) << 16;
    ET_L2_WRONG_ETH_TYPE = 16908288;
    // ET_L3_TOO_SHORT = (ET_L3_ERROR_TYPE | 0x1) << 16;
    ET_L3_TOO_SHORT = 33619968;
    // ET_L3_NOT_IPV4 = (ET_L3_ERROR_TYPE | 0x2) << 16;
    ET_L3_NOT_IPV4 = 33685504;
    // ET_L3_INVALID_IP = (ET_L3_ERROR_TYPE | 0x3) << 16;
    ET_L3_INVALID_IP = 33751040;
    // ET_L4_NOT_UDP = (ET_L4_ERROR_TYPE | 0x1) << 16;
    ET_L4_NOT_UDP = 50397184;
    // ET_L4_WRONG_PORT = (ET_L4_ERROR_TYPE | 0x2) << 16;
    ET_L4_WRONG_PORT = 50462720;
    // ET_BOOTP_TOO_SHORT = (ET_DHCP_ERROR_TYPE | 0x1) << 16;
    ET_BOOTP_TOO_SHORT = 67174400;
    // ET_DHCP_BAD_MAGIC_COOKIE = (ET_DHCP_ERROR_TYPE | 0x2) << 16;
    ET_DHCP_BAD_MAGIC_COOKIE = 67239936;
    // ET_DHCP_INVALID_OPTION_LENGTH = (ET_DHCP_ERROR_TYPE | 0x3) << 16;
    ET_DHCP_INVALID_OPTION_LENGTH = 67305472;
    // ET_DHCP_NO_MSG_TYPE = (ET_DHCP_ERROR_TYPE | 0x4) << 16;
    ET_DHCP_NO_MSG_TYPE = 67371008;
    // ET_DHCP_UNKNOWN_MSG_TYPE = (ET_DHCP_ERROR_TYPE | 0x5) << 16;
    ET_DHCP_UNKNOWN_MSG_TYPE = 67436544;
    // ET_DHCP_NO_COOKIE = (ET_DHCP_ERROR_TYPE | 0x6) << 16;
    ET_DHCP_NO_COOKIE = 67502080;
    // ET_BUFFER_UNDERFLOW = (ET_MISC_ERROR_TYPE | 0x1) << 16;
    ET_BUFFER_UNDERFLOW = 83951616;
    // ET_RECEIVE_ERROR = (ET_MISC_ERROR_TYPE | 0x2) << 16;
    ET_RECEIVE_ERROR = 84017152;
    // ET_PARSING_ERROR = (ET_MISC_ERROR_TYPE | 0x3) << 16;
    ET_PARSING_ERROR = 84082688;
}

enum NetworkQuirkEvent {
    QE_UNKNOWN = 0;
    QE_IPV6_PROVISIONING_ROUTER_LOST = 1;
}

enum IpType {
    // Unknown IP address type;
    UNKNOWN = 0;
    // IPv4 address;
    IPV4 = 4;
    // IPv6 address;
    IPV6 = 6;
}

enum NudEventType {
    // Unknown event type;
    NUD_EVENT_UNKNOWN = 0;
    // Forced nud probe after roaming from IpReachabilityMonitor, neighbor is unreachable;
    NUD_POST_ROAMING_FAILED = 1;
    // Forced nud probe after roaming from IpReachabilityMonitor, neighbor is unreachable and
    // IP provisioning lost;
    NUD_POST_ROAMING_FAILED_CRITICAL = 2;
    // Forced nud probe after receiving CMD_CONFIRM from IpReachabilityMonitor, neighbor is
    // unreachable;
    NUD_CONFIRM_FAILED = 3;
    // Forced nud probe after receiving CMD_CONFIRM from IpReachabilityMonitor, neighbor is
    // unreachable and IP provisioning lost;
    NUD_CONFIRM_FAILED_CRITICAL = 4;
    // Neighbor unreachable notification from kernel;
    NUD_ORGANIC_FAILED = 5;
    // Neighbor unreachable notification from kernel, and IP provisioning is also lost;
    NUD_ORGANIC_FAILED_CRITICAL = 6;
    // NUD probe failure due to neighbor's MAC address has changed.
    NUD_MAC_ADDRESS_CHANGED = 7 [deprecated=true];
    // NUD probe failure due to neighbor's MAC address has changed after roaming.
    NUD_POST_ROAMING_MAC_ADDRESS_CHANGED = 8;
    // NUD probe failure due to neighbor's MAC address has changed after receiving CMD_CONFIRM.
    NUD_CONFIRM_MAC_ADDRESS_CHANGED = 9;
    // NUD probe failure due to neighbor's MAC address has changed during organic probes.
    NUD_ORGANIC_MAC_ADDRESS_CHANGED = 10;
}

enum NudNeighborType {
    // Unknown neighbor type;
    NUD_NEIGHBOR_UNKNOWN = 0;
    // Neighbor is default gateway;
    NUD_NEIGHBOR_GATEWAY = 1;
    // Neighbor is DNS server;
    NUD_NEIGHBOR_DNS = 2;
    // Neighbor is both the default gateway and DNS server;
    NUD_NEIGHBOR_BOTH = 3;
}

message NetworkStackEventData {

}