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e32e5c0d0c
This PR parameterizes receiving loopback updates from the portlist package. Callers can now include services bound to localhost if they want. Note that this option is off by default still. Fixes #8171 Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
93 lines
2.4 KiB
Go
93 lines
2.4 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build darwin && !ios
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package portlist
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import (
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"bufio"
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"encoding/json"
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"fmt"
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"strings"
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"testing"
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"go4.org/mem"
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)
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func TestParsePort(t *testing.T) {
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type InOut struct {
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in string
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expect int
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}
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tests := []InOut{
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{"1.2.3.4:5678", 5678},
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{"0.0.0.0.999", 999},
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{"1.2.3.4:*", 0},
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{"5.5.5.5:0", 0},
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{"[1::2]:5", 5},
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{"[1::2].5", 5},
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{"gibberish", -1},
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}
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for _, io := range tests {
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got := parsePort(mem.S(io.in))
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if got != io.expect {
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t.Fatalf("input:%#v expect:%v got:%v\n", io.in, io.expect, got)
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}
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}
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}
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const netstatOutput = `
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// macOS
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tcp4 0 0 *.23 *.* LISTEN
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tcp6 0 0 *.24 *.* LISTEN
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tcp4 0 0 *.8185 *.* LISTEN
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tcp4 0 0 127.0.0.1.8186 *.* LISTEN
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tcp6 0 0 ::1.8187 *.* LISTEN
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tcp4 0 0 127.1.2.3.8188 *.* LISTEN
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udp6 0 0 *.106 *.*
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udp4 0 0 *.104 *.*
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udp46 0 0 *.146 *.*
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`
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func TestParsePortsNetstat(t *testing.T) {
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for _, loopBack := range [...]bool{false, true} {
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t.Run(fmt.Sprintf("loopback_%v", loopBack), func(t *testing.T) {
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want := List{
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{"tcp", 23, "", 0},
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{"tcp", 24, "", 0},
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{"udp", 104, "", 0},
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{"udp", 106, "", 0},
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{"udp", 146, "", 0},
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{"tcp", 8185, "", 0}, // but not 8186, 8187, 8188 on localhost, when loopback is false
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}
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if loopBack {
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want = append(want,
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Port{"tcp", 8186, "", 0},
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Port{"tcp", 8187, "", 0},
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Port{"tcp", 8188, "", 0},
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)
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}
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pl, err := appendParsePortsNetstat(nil, bufio.NewReader(strings.NewReader(netstatOutput)), loopBack)
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if err != nil {
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t.Fatal(err)
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}
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pl = sortAndDedup(pl)
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jgot, _ := json.MarshalIndent(pl, "", "\t")
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jwant, _ := json.MarshalIndent(want, "", "\t")
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if len(pl) != len(want) {
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t.Fatalf("Got:\n%s\n\nWant:\n%s\n", jgot, jwant)
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}
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for i := range pl {
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if pl[i] != want[i] {
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t.Errorf("row#%d\n got: %+v\n\nwant: %+v\n",
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i, pl[i], want[i])
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t.Fatalf("Got:\n%s\n\nWant:\n%s\n", jgot, jwant)
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}
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}
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})
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}
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}
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