github.com/noisysockets/noisysockets@v0.21.2-0.20240515114641-7f467e651c90/internal/transport/constants.go (about)

     1  // SPDX-License-Identifier: MPL-2.0
     2  /*
     3   * Copyright (C) 2024 The Noisy Sockets Authors.
     4   *
     5   * This Source Code Form is subject to the terms of the Mozilla Public
     6   * License, v. 2.0. If a copy of the MPL was not distributed with this
     7   * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     8   *
     9   * Portions of this file are based on code originally from wireguard-go,
    10   *
    11   * Copyright (C) 2017-2023 WireGuard LLC. All Rights Reserved.
    12   *
    13   * Permission is hereby granted, free of charge, to any person obtaining a copy of
    14   * this software and associated documentation files (the "Software"), to deal in
    15   * the Software without restriction, including without limitation the rights to
    16   * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
    17   * of the Software, and to permit persons to whom the Software is furnished to do
    18   * so, subject to the following conditions:
    19   *
    20   * The above copyright notice and this permission notice shall be included in all
    21   * copies or substantial portions of the Software.
    22   *
    23   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    24   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    25   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    26   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    27   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    28   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    29   * SOFTWARE.
    30   */
    31  
    32  package transport
    33  
    34  import (
    35  	"time"
    36  )
    37  
    38  /* Specification constants */
    39  
    40  const (
    41  	RekeyAfterMessages      = (1 << 60)
    42  	RejectAfterMessages     = (1 << 64) - (1 << 13) - 1
    43  	RekeyAfterTime          = time.Second * 120
    44  	RekeyAttemptTime        = time.Second * 90
    45  	RekeyTimeout            = time.Second * 5
    46  	MaxTimerHandshakes      = 90 / 5 /* RekeyAttemptTime / RekeyTimeout */
    47  	RekeyTimeoutJitterMaxMs = 334
    48  	RejectAfterTime         = time.Second * 180
    49  	KeepaliveTimeout        = time.Second * 10
    50  	CookieRefreshTime       = time.Second * 120
    51  	HandshakeInitationRate  = time.Second / 50
    52  	PaddingMultiple         = 16
    53  )
    54  
    55  const (
    56  	MinMessageSize = MessageKeepaliveSize                  // minimum size of transport message (keepalive)
    57  	MaxMessageSize = MaxSegmentSize                        // maximum size of transport message
    58  	MaxContentSize = MaxSegmentSize - MessageTransportSize // maximum size of transport message content
    59  )
    60  
    61  /* Implementation constants */
    62  
    63  const (
    64  	UnderLoadAfterTime = time.Second // how long does the transport remain under load after detected
    65  	MaxPeers           = 1 << 16     // maximum number of configured peers
    66  )