This adds a statistic to track the last connection duration per device. It isn't used for much in this PR, but it's available for #7223 to use in deciding how to order device connection attempts (deprioritizing devices that just dropped our connection the last time).
89 lines
2.0 KiB
Go
89 lines
2.0 KiB
Go
// Copyright (C) 2016 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at https://mozilla.org/MPL/2.0/.
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package connections
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import (
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"context"
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"crypto/tls"
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"net/url"
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"time"
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"github.com/syncthing/syncthing/lib/config"
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"github.com/syncthing/syncthing/lib/dialer"
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"github.com/syncthing/syncthing/lib/protocol"
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)
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const tcpPriority = 10
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func init() {
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factory := &tcpDialerFactory{}
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for _, scheme := range []string{"tcp", "tcp4", "tcp6"} {
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dialers[scheme] = factory
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}
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}
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type tcpDialer struct {
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commonDialer
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}
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func (d *tcpDialer) Dial(ctx context.Context, _ protocol.DeviceID, uri *url.URL) (internalConn, error) {
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uri = fixupPort(uri, config.DefaultTCPPort)
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timeoutCtx, cancel := context.WithTimeout(ctx, 10*time.Second)
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defer cancel()
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conn, err := dialer.DialContextReusePort(timeoutCtx, uri.Scheme, uri.Host)
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if err != nil {
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return internalConn{}, err
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}
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err = dialer.SetTCPOptions(conn)
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if err != nil {
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l.Debugln("Dial (BEP/tcp): setting tcp options:", err)
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}
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err = dialer.SetTrafficClass(conn, d.trafficClass)
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if err != nil {
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l.Debugln("Dial (BEP/tcp): setting traffic class:", err)
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}
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tc := tls.Client(conn, d.tlsCfg)
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err = tlsTimedHandshake(tc)
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if err != nil {
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tc.Close()
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return internalConn{}, err
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}
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return newInternalConn(tc, connTypeTCPClient, tcpPriority), nil
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}
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type tcpDialerFactory struct{}
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func (tcpDialerFactory) New(opts config.OptionsConfiguration, tlsCfg *tls.Config) genericDialer {
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return &tcpDialer{commonDialer{
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trafficClass: opts.TrafficClass,
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reconnectInterval: time.Duration(opts.ReconnectIntervalS) * time.Second,
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tlsCfg: tlsCfg,
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}}
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}
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func (tcpDialerFactory) Priority() int {
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return tcpPriority
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}
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func (tcpDialerFactory) AlwaysWAN() bool {
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return false
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}
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func (tcpDialerFactory) Valid(_ config.Configuration) error {
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// Always valid
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return nil
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}
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func (tcpDialerFactory) String() string {
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return "TCP Dialer"
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}
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