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https://github.com/octoleo/syncthing.git
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e7dc2f9190
clearAddresses write locks the struct and then calls notify. notify in turn tries to obtain a read lock on the same mutex. The result was a deadlock. This change unlocks the struct before calling notify.
70 lines
1.7 KiB
Go
70 lines
1.7 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 nat
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import (
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"net"
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"testing"
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"github.com/syncthing/syncthing/lib/protocol"
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)
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func TestMappingValidGateway(t *testing.T) {
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a := net.ParseIP("10.0.0.1")
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b := net.ParseIP("192.168.0.1")
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tests := []struct {
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mappingLocalIP net.IP
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gatewayLocalIP net.IP
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expected bool
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}{
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// Any of the IPs is nil or unspecified implies correct
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{nil, nil, true},
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{net.IPv4zero, net.IPv4zero, true},
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{nil, net.IPv4zero, true},
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{net.IPv4zero, nil, true},
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{a, nil, true},
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{b, nil, true},
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{a, net.IPv4zero, true},
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{b, net.IPv4zero, true},
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{nil, a, true},
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{nil, b, true},
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{net.IPv4zero, a, true},
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{net.IPv4zero, b, true},
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// IPs are the same implies correct
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{a, a, true},
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{b, b, true},
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// IPs are specified and different, implies incorrect
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{a, b, false},
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{b, a, false},
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}
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for _, test := range tests {
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m := Mapping{
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address: Address{
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IP: test.mappingLocalIP,
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},
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}
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result := m.validGateway(test.gatewayLocalIP)
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if result != test.expected {
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t.Errorf("Incorrect: local %s gateway %s result %t expected %t", test.mappingLocalIP, test.gatewayLocalIP, result, test.expected)
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}
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}
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}
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func TestMappingClearAddresses(t *testing.T) {
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natSvc := NewService(protocol.EmptyDeviceID, nil)
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// Mock a mapped port; avoids the need to actually map a port
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ip := net.ParseIP("192.168.0.1")
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m := natSvc.NewMapping(TCP, ip, 1024)
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m.extAddresses["test"] = Address{
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IP: ip,
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Port: 1024,
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}
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// Now try and remove the mapped port; prior to #4829 this deadlocked
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natSvc.RemoveMapping(m)
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}
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