tailscale/portlist/portlist_linux_test.go

68 lines
2.3 KiB
Go

// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package portlist
import (
"bufio"
"bytes"
"testing"
"github.com/google/go-cmp/cmp"
)
func TestParsePorts(t *testing.T) {
tests := []struct {
name string
in string
want []Port
}{
{
name: "empty",
in: "header line (ignored)\n",
want: nil,
},
{
name: "ipv4",
in: `header line
0: 0100007F:0277 00000000:0000 0A 00000000:00000000 00:00000000 00000000 0 0 22303 1 0000000000000000 100 0 0 10 0
1: 00000000:0016 00000000:0000 0A 00000000:00000000 00:00000000 00000000 0 0 34062 1 0000000000000000 100 0 0 10 0
2: 5501A8C0:ADD4 B25E9536:01BB 01 00000000:00000000 02:00000B2B 00000000 1000 0 155276677 2 0000000000000000 22 4 30 10 -1
`,
want: []Port{
{Proto: "tcp", Port: 22, inode: "socket:[34062]"},
},
},
{
name: "ipv6",
in: ` sl local_address remote_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode
0: 00000000000000000000000001000000:0277 00000000000000000000000000000000:0000 0A 00000000:00000000 00:00000000 00000000 0 0 35720 1 0000000000000000 100 0 0 10 0
1: 00000000000000000000000000000000:1F91 00000000000000000000000000000000:0000 0A 00000000:00000000 00:00000000 00000000 1000 0 142240557 1 0000000000000000 100 0 0 10 0
2: 00000000000000000000000000000000:0016 00000000000000000000000000000000:0000 0A 00000000:00000000 00:00000000 00000000 0 0 34064 1 0000000000000000 100 0 0 10 0
3: 69050120005716BC64906EBE009ECD4D:D506 0047062600000000000000006E171268:01BB 01 00000000:00000000 02:0000009E 00000000 1000 0 151042856 2 0000000000000000 21 4 28 10 -1
`,
want: []Port{
{Proto: "tcp", Port: 8081, inode: "socket:[142240557]"},
{Proto: "tcp", Port: 22, inode: "socket:[34064]"},
},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
buf := bytes.NewBufferString(test.in)
r := bufio.NewReader(buf)
got, err := parsePorts(r, "tcp")
if err != nil {
t.Fatal(err)
}
if diff := cmp.Diff(got, test.want, cmp.AllowUnexported(Port{})); diff != "" {
t.Errorf("unexpected parsed ports (-got+want):\n%s", diff)
}
})
}
}