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
73
74
75
76
77
78
79
80
|
// Copyright 2023 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 nftables
import (
"github.com/google/nftables/binaryutil"
"github.com/mdlayher/netlink"
"golang.org/x/sys/unix"
)
const (
NFTA_OBJ_USERDATA = 8
NFT_OBJECT_QUOTA = 2
)
type QuotaObj struct {
Table *Table
Name string
Bytes uint64
Consumed uint64
Over bool
}
func (q *QuotaObj) unmarshal(ad *netlink.AttributeDecoder) error {
for ad.Next() {
switch ad.Type() {
case unix.NFTA_QUOTA_BYTES:
q.Bytes = ad.Uint64()
case unix.NFTA_QUOTA_CONSUMED:
q.Consumed = ad.Uint64()
case unix.NFTA_QUOTA_FLAGS:
q.Over = (ad.Uint32() & unix.NFT_QUOTA_F_INV) == 1
}
}
return nil
}
func (q *QuotaObj) marshal(data bool) ([]byte, error) {
flags := uint32(0)
if q.Over {
flags = unix.NFT_QUOTA_F_INV
}
obj, err := netlink.MarshalAttributes([]netlink.Attribute{
{Type: unix.NFTA_QUOTA_BYTES, Data: binaryutil.BigEndian.PutUint64(q.Bytes)},
{Type: unix.NFTA_QUOTA_CONSUMED, Data: binaryutil.BigEndian.PutUint64(q.Consumed)},
{Type: unix.NFTA_QUOTA_FLAGS, Data: binaryutil.BigEndian.PutUint32(flags)},
})
if err != nil {
return nil, err
}
attrs := []netlink.Attribute{
{Type: unix.NFTA_OBJ_TABLE, Data: []byte(q.Table.Name + "\x00")},
{Type: unix.NFTA_OBJ_NAME, Data: []byte(q.Name + "\x00")},
{Type: unix.NFTA_OBJ_TYPE, Data: binaryutil.BigEndian.PutUint32(NFT_OBJECT_QUOTA)},
}
if data {
attrs = append(attrs, netlink.Attribute{Type: unix.NLA_F_NESTED | unix.NFTA_OBJ_DATA, Data: obj})
}
return netlink.MarshalAttributes(attrs)
}
func (q *QuotaObj) table() *Table {
return q.Table
}
func (q *QuotaObj) family() TableFamily {
return q.Table.Family
}
|
