1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// Copyright 2018 Google LLC. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package userdata_test
import (
"bytes"
"encoding/hex"
"testing"
"github.com/google/nftables"
"github.com/google/nftables/userdata"
)
func TestUserDataComment(t *testing.T) {
r := nftables.Rule{}
wantComment := "this is my comment"
want := []byte{
byte(userdata.TypeComment), // Type
byte(len(wantComment) + 1), // Length (including terminating null byte)
}
want = append(want, []byte(wantComment)...) // Payload
want = append(want, 0) // Terminating null byte
r.UserData = userdata.AppendString(r.UserData, userdata.TypeComment, wantComment)
if !bytes.Equal(r.UserData, want) {
t.Fatalf("UserData mismatch: %s != %s",
hex.EncodeToString(r.UserData),
hex.EncodeToString(want))
}
if comment, ok := userdata.GetString(r.UserData, userdata.TypeComment); !ok {
t.Fatalf("failed to get comment")
} else if comment != wantComment {
t.Fatalf("comment does not match: %s != %s", comment, wantComment)
}
}
func TestUint32(t *testing.T) {
// Define a custom type for storing a rule ID
const TypeRuleID = userdata.TypesCount
r := nftables.Rule{}
wantRuleID := uint32(1234)
want := []byte{byte(TypeRuleID), 4, 210, 4, 0, 0}
r.UserData = userdata.AppendUint32(r.UserData, TypeRuleID, wantRuleID)
if !bytes.Equal(r.UserData, want) {
t.Fatalf("UserData mismatch: %x != %x", r.UserData, want)
}
if ruleID, ok := userdata.GetUint32(r.UserData, TypeRuleID); !ok {
t.Fatalf("failed to get id")
} else if ruleID != wantRuleID {
t.Fatalf("id mismatch")
}
}
|
