mirror of
https://github.com/octoleo/syncthing.git
synced 2024-12-22 19:08:58 +00:00
519 lines
12 KiB
Go
519 lines
12 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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"bytes"
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"context"
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"crypto/tls"
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"errors"
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"fmt"
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"io"
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"math/rand"
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"net"
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"net/url"
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"strings"
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"testing"
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"time"
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"github.com/thejerf/suture/v4"
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"github.com/syncthing/syncthing/lib/config"
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"github.com/syncthing/syncthing/lib/connections/registry"
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"github.com/syncthing/syncthing/lib/dialer"
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"github.com/syncthing/syncthing/lib/events"
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"github.com/syncthing/syncthing/lib/nat"
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"github.com/syncthing/syncthing/lib/protocol"
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"github.com/syncthing/syncthing/lib/sync"
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"github.com/syncthing/syncthing/lib/tlsutil"
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)
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func TestFixupPort(t *testing.T) {
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cases := [][2]string{
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{"tcp://1.2.3.4:5", "tcp://1.2.3.4:5"},
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{"tcp://1.2.3.4:", "tcp://1.2.3.4:22000"},
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{"tcp://1.2.3.4", "tcp://1.2.3.4:22000"},
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{"tcp://[fe80::1]", "tcp://[fe80::1]:22000"},
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{"tcp://[fe80::1]:", "tcp://[fe80::1]:22000"},
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{"tcp://[fe80::1]:22000", "tcp://[fe80::1]:22000"},
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{"tcp://[fe80::1]:22000", "tcp://[fe80::1]:22000"},
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{"tcp://[fe80::1%25abc]", "tcp://[fe80::1%25abc]:22000"},
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{"tcp://[fe80::1%25abc]:", "tcp://[fe80::1%25abc]:22000"},
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{"tcp://[fe80::1%25abc]:22000", "tcp://[fe80::1%25abc]:22000"},
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{"tcp://[fe80::1%25abc]:22000", "tcp://[fe80::1%25abc]:22000"},
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}
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for _, tc := range cases {
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u0, err := url.Parse(tc[0])
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if err != nil {
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t.Fatal(err)
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}
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u1 := fixupPort(u0, 22000).String()
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if u1 != tc[1] {
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t.Errorf("fixupPort(%q, 22000) => %q, expected %q", tc[0], u1, tc[1])
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}
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}
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}
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func TestAllowedNetworks(t *testing.T) {
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cases := []struct {
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host string
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allowed []string
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ok bool
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}{
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{
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"192.168.0.1",
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nil,
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false,
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},
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{
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"192.168.0.1",
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[]string{},
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false,
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},
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{
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"fe80::1",
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nil,
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false,
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},
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{
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"fe80::1",
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[]string{},
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false,
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},
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{
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"192.168.0.1",
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[]string{"fe80::/48", "192.168.0.0/24"},
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true,
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},
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{
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"fe80::1",
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[]string{"192.168.0.0/24", "fe80::/48"},
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true,
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},
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{
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"192.168.0.1",
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[]string{"192.168.1.0/24", "fe80::/48"},
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false,
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},
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{
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"fe80::1",
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[]string{"fe82::/48", "192.168.1.0/24"},
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false,
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},
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{
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"192.168.0.1:4242",
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[]string{"fe80::/48", "192.168.0.0/24"},
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true,
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},
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{
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"[fe80::1]:4242",
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[]string{"192.168.0.0/24", "fe80::/48"},
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true,
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},
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{
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"10.20.30.40",
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[]string{"!10.20.30.0/24", "10.0.0.0/8"},
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false,
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},
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{
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"10.20.30.40",
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[]string{"10.0.0.0/8", "!10.20.30.0/24"},
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true,
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},
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{
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"[fe80::1]:4242",
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[]string{"192.168.0.0/24", "!fe00::/8", "fe80::/48"},
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false,
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},
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}
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for _, tc := range cases {
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res := IsAllowedNetwork(tc.host, tc.allowed)
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if res != tc.ok {
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t.Errorf("allowedNetwork(%q, %q) == %v, want %v", tc.host, tc.allowed, res, tc.ok)
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}
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}
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}
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func TestGetDialer(t *testing.T) {
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mustParseURI := func(v string) *url.URL {
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uri, err := url.Parse(v)
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if err != nil {
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panic(err)
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}
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return uri
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}
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cases := []struct {
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uri *url.URL
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ok bool
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disabled bool
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deprecated bool
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}{
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{mustParseURI("tcp://1.2.3.4:5678"), true, false, false}, // ok
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{mustParseURI("tcp4://1.2.3.4:5678"), true, false, false}, // ok
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{mustParseURI("kcp://1.2.3.4:5678"), false, false, true}, // deprecated
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{mustParseURI("relay://1.2.3.4:5678"), false, true, false}, // disabled
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{mustParseURI("http://1.2.3.4:5678"), false, false, false}, // generally bad
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{mustParseURI("bananas!"), false, false, false}, // wat
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}
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cfg := config.New(protocol.LocalDeviceID)
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cfg.Options.RelaysEnabled = false
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for _, tc := range cases {
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df, err := getDialerFactory(cfg, tc.uri)
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if tc.ok && err != nil {
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t.Errorf("getDialerFactory(%q) => %v, expected nil err", tc.uri, err)
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}
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if tc.ok && df == nil {
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t.Errorf("getDialerFactory(%q) => nil factory, expected non-nil", tc.uri)
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}
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if tc.deprecated && err != errDeprecated {
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t.Errorf("getDialerFactory(%q) => %v, expected %v", tc.uri, err, errDeprecated)
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}
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if tc.disabled && err != errDisabled {
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t.Errorf("getDialerFactory(%q) => %v, expected %v", tc.uri, err, errDisabled)
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}
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lf, err := getListenerFactory(cfg, tc.uri)
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if tc.ok && err != nil {
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t.Errorf("getListenerFactory(%q) => %v, expected nil err", tc.uri, err)
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}
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if tc.ok && lf == nil {
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t.Errorf("getListenerFactory(%q) => nil factory, expected non-nil", tc.uri)
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}
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if tc.deprecated && err != errDeprecated {
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t.Errorf("getListenerFactory(%q) => %v, expected %v", tc.uri, err, errDeprecated)
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}
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if tc.disabled && err != errDisabled {
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t.Errorf("getListenerFactory(%q) => %v, expected %v", tc.uri, err, errDisabled)
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}
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}
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}
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func TestConnectionStatus(t *testing.T) {
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s := newConnectionStatusHandler()
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addr := "testAddr"
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testErr := errors.New("testErr")
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if stats := s.ConnectionStatus(); len(stats) != 0 {
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t.Fatal("newly created connectionStatusHandler isn't empty:", len(stats))
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}
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check := func(in, out error) {
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t.Helper()
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s.setConnectionStatus(addr, in)
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switch stat, ok := s.ConnectionStatus()[addr]; {
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case !ok:
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t.Fatal("entry missing")
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case out == nil:
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if stat.Error != nil {
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t.Fatal("expected nil error, got", stat.Error)
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}
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case *stat.Error != out.Error():
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t.Fatalf("expected %v error, got %v", out.Error(), *stat.Error)
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}
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}
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check(nil, nil)
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check(context.Canceled, nil)
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check(testErr, testErr)
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check(context.Canceled, testErr)
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check(nil, nil)
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}
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func TestNextDialRegistryCleanup(t *testing.T) {
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now := time.Now()
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firsts := []time.Time{
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now.Add(-dialCoolDownInterval + time.Second),
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now.Add(-dialCoolDownDelay + time.Second),
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now.Add(-2 * dialCoolDownDelay),
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}
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r := make(nextDialRegistry)
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// Cases where the device should be cleaned up
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r[protocol.LocalDeviceID] = nextDialDevice{}
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r.sleepDurationAndCleanup(now)
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if l := len(r); l > 0 {
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t.Errorf("Expected empty to be cleaned up, got length %v", l)
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}
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for _, dev := range []nextDialDevice{
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// attempts below threshold, outside of interval
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{
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attempts: 1,
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coolDownIntervalStart: firsts[1],
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},
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{
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attempts: 1,
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coolDownIntervalStart: firsts[2],
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},
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// Threshold reached, but outside of cooldown delay
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{
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attempts: dialCoolDownMaxAttemps,
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coolDownIntervalStart: firsts[2],
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},
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} {
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r[protocol.LocalDeviceID] = dev
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r.sleepDurationAndCleanup(now)
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if l := len(r); l > 0 {
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t.Errorf("attempts: %v, start: %v: Expected all cleaned up, got length %v", dev.attempts, dev.coolDownIntervalStart, l)
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}
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}
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// Cases where the device should stay monitored
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for _, dev := range []nextDialDevice{
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// attempts below threshold, inside of interval
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{
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attempts: 1,
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coolDownIntervalStart: firsts[0],
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},
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// attempts at threshold, inside delay
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{
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attempts: dialCoolDownMaxAttemps,
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coolDownIntervalStart: firsts[0],
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},
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{
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attempts: dialCoolDownMaxAttemps,
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coolDownIntervalStart: firsts[1],
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},
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} {
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r[protocol.LocalDeviceID] = dev
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r.sleepDurationAndCleanup(now)
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if l := len(r); l != 1 {
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t.Errorf("attempts: %v, start: %v: Expected device still tracked, got length %v", dev.attempts, dev.coolDownIntervalStart, l)
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}
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}
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}
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func BenchmarkConnections(b *testing.B) {
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addrs := []string{
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"tcp://127.0.0.1:0",
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"quic://127.0.0.1:0",
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"relay://127.0.0.1:22067",
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}
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sizes := []int{
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1 << 10,
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1 << 15,
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1 << 20,
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1 << 22,
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}
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haveRelay := false
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// Check if we have a relay running locally
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conn, err := net.DialTimeout("tcp", "127.0.0.1:22067", 100*time.Millisecond)
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if err == nil {
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haveRelay = true
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_ = conn.Close()
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}
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for _, addr := range addrs {
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for _, sz := range sizes {
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data := make([]byte, sz)
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if _, err := rand.Read(data); err != nil {
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b.Fatal(err)
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}
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for _, direction := range []string{"cs", "sc"} {
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proto := strings.SplitN(addr, ":", 2)[0]
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b.Run(fmt.Sprintf("%s_%d_%s", proto, sz, direction), func(b *testing.B) {
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if proto == "relay" && !haveRelay {
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b.Skip("could not connect to relay")
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}
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withConnectionPair(b, addr, func(client, server internalConn) {
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if direction == "sc" {
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server, client = client, server
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}
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total := 0
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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wg := sync.NewWaitGroup()
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wg.Add(2)
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errC := make(chan error, 2)
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go func() {
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wg.Wait()
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close(errC)
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}()
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go func() {
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if _, err := client.Write(data); err != nil {
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errC <- err
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return
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}
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wg.Done()
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}()
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go func() {
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if _, err := io.ReadFull(server, data); err != nil {
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errC <- err
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return
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}
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total += sz
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wg.Done()
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}()
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err := <-errC
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if err != nil {
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b.Fatal(err)
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}
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}
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b.ReportAllocs()
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b.SetBytes(int64(total / b.N))
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})
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})
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}
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}
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}
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}
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func TestConnectionEstablishment(t *testing.T) {
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addrs := []string{
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"tcp://127.0.0.1:0",
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"quic://127.0.0.1:0",
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}
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send := make([]byte, 128<<10)
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if _, err := rand.Read(send); err != nil {
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t.Fatal(err)
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}
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for _, addr := range addrs {
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proto := strings.SplitN(addr, ":", 2)[0]
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t.Run(proto, func(t *testing.T) {
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withConnectionPair(t, addr, func(client, server internalConn) {
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if _, err := client.Write(send); err != nil {
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t.Fatal(err)
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}
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recv := make([]byte, len(send))
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if _, err := io.ReadFull(server, recv); err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(recv, send) {
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t.Fatal("data mismatch")
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}
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})
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})
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}
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}
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func withConnectionPair(b interface{ Fatal(...interface{}) }, connUri string, h func(client, server internalConn)) {
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// We're connecting to ourselves over localhost. Reuseport doesn't work
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// well in this scenario since we can't typically have a connection with
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// the same source and destination port...
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dialer.SupportsReusePort = false
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// Root of the service tree.
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supervisor := suture.New("main", suture.Spec{
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PassThroughPanics: true,
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})
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cert := mustGetCert(b)
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deviceId := protocol.NewDeviceID(cert.Certificate[0])
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tlsCfg := tlsutil.SecureDefaultTLS13()
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tlsCfg.Certificates = []tls.Certificate{cert}
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tlsCfg.NextProtos = []string{"bench"}
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tlsCfg.ClientAuth = tls.RequestClientCert
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tlsCfg.SessionTicketsDisabled = true
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tlsCfg.InsecureSkipVerify = true
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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supervisor.ServeBackground(ctx)
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cfg := config.Configuration{
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Options: config.OptionsConfiguration{
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RelaysEnabled: true,
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},
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}
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wcfg := config.Wrap("", cfg, deviceId, events.NoopLogger)
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uri, err := url.Parse(connUri)
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if err != nil {
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b.Fatal(err)
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}
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lf, err := getListenerFactory(cfg, uri)
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if err != nil {
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b.Fatal(err)
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}
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natSvc := nat.NewService(deviceId, wcfg)
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conns := make(chan internalConn, 1)
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fmt.Println("listening", uri)
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listenSvc := lf.New(uri, wcfg, tlsCfg, conns, natSvc, registry.New())
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supervisor.Add(listenSvc)
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var addr *url.URL
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for {
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addrs := listenSvc.LANAddresses()
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if len(addrs) > 0 {
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if !strings.HasSuffix(addrs[0].Host, ":0") {
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addr = addrs[0]
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break
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}
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}
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time.Sleep(time.Millisecond)
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}
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df, err := getDialerFactory(cfg, addr)
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if err != nil {
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b.Fatal(err)
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}
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// Purposely using a different registry: Don't want to reuse port between dialer and listener on the same device
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dialer := df.New(cfg.Options, tlsCfg, registry.New())
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// Relays might take some time to register the device, so dial multiple times
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fmt.Println("dialing", addr)
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clientConn, err := dialer.Dial(ctx, deviceId, addr)
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if err != nil {
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fmt.Println("error", err)
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for i := 0; i < 10 && err != nil; i++ {
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clientConn, err = dialer.Dial(ctx, deviceId, addr)
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time.Sleep(100 * time.Millisecond)
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}
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if err != nil {
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b.Fatal(err)
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}
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}
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fmt.Println("clientConn", clientConn.LocalAddr(), "->", clientConn.RemoteAddr())
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// Quic does not start a stream until some data is sent through, so send something for the AcceptStream
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// to fire on the other side.
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send := []byte("hello")
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if _, err := clientConn.Write(send); err != nil {
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b.Fatal(err)
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}
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serverConn := <-conns
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fmt.Println("serverConn", serverConn.LocalAddr(), "->", serverConn.RemoteAddr())
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recv := make([]byte, len(send))
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if _, err := io.ReadFull(serverConn, recv); err != nil {
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b.Fatal(err)
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}
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if !bytes.Equal(recv, send) {
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b.Fatal("data mismatch")
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}
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h(clientConn, serverConn)
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_ = clientConn.Close()
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_ = serverConn.Close()
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}
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func mustGetCert(b interface{ Fatal(...interface{}) }) tls.Certificate {
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cert, err := tlsutil.NewCertificateInMemory("bench", 10)
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if err != nil {
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b.Fatal(err)
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}
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return cert
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}
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