/*
 * Copyright (C) 2020 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.tls;

// Keep in sync with
// external/conscrypt/{android,platform}/src/main/java/org/conscrypt/Platform.java
enum Protocol {
    UNKNOWN_PROTO = 0;
    SSL_V3 = 1;
    TLS_V1 = 2;
    TLS_V1_1 = 3;
    TLS_V1_2 = 4;
    TLS_V1_3 = 5;

    // Handshake failure.
    TLS_PROTO_FAILED = 0xFFFF;
}

// Cipher suites' ids are based on IANA's database:
// https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4
//
// If you add new cipher suite, make sure id is the same as in  IANA's database (see link above)
//
// Keep in sync with
// external/conscrypt/{android,platform}/src/main/java/org/conscrypt/Platform.java
enum CipherSuite {
    UNKNOWN_CIPHER_SUITE = 0x0000;

    TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA = 0xC00A;
    TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA = 0xC014;
    TLS_RSA_WITH_AES_256_CBC_SHA = 0x0035;
    TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA = 0xC009;
    TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA = 0xC013;
    TLS_RSA_WITH_AES_128_CBC_SHA = 0x002F;
    TLS_RSA_WITH_3DES_EDE_CBC_SHA = 0x000A;

    // TLSv1.2 cipher suites
    TLS_RSA_WITH_AES_128_GCM_SHA256 = 0x009C;
    TLS_RSA_WITH_AES_256_GCM_SHA384 = 0x009D;
    TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 = 0xC02F;
    TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 = 0xC030;
    TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 = 0xC02B;
    TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 = 0xC02C;
    TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 = 0xCCA9;
    TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 = 0xCCA8;

    // Pre-Shared Key (PSK) cipher suites
    TLS_PSK_WITH_AES_128_CBC_SHA = 0x008C;
    TLS_PSK_WITH_AES_256_CBC_SHA = 0x008D;
    TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA = 0xC035;
    TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA = 0xC036;
    TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 = 0xCCAC;

    // TLS 1.3 cipher suites
    TLS_AES_128_GCM_SHA256 = 0x1301;
    TLS_AES_256_GCM_SHA384 = 0x1302;
    TLS_CHACHA20_POLY1305_SHA256 = 0x1303;

    // Handshake failure.
    TLS_CIPHER_FAILED = 0XFFFF;
}

// Log source: Which flavour of Conscrypt is being used
//
// Keep in sync with
// external/conscrypt/{android,platform}/src/main/java/org/conscrypt/Platform.java
enum Source {
    // Unknown - could be either GMS or Mainline.
    SOURCE_UNKNOWN = 0;

    // Conscrypt Mainline module.
    SOURCE_MAINLINE = 1;

    // GMS Conscrypt, as installed by the Play ProviderInstaller API.
    SOURCE_GMS = 2;

    // Conscrypt unbundled from the platform and included
    // by app developer from Maven Central.
    SOURCE_UNBUNDLED = 3;
}