/
entries.go
46 lines (39 loc) · 1.32 KB
/
entries.go
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
// Copyright 2020 Authors of Cilium
//
// 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 ipcachetypes
import (
"bytes"
"net"
"github.com/cilium/cilium/api/v1/models"
)
type IPListEntrySlice []*models.IPListEntry
func (s IPListEntrySlice) Swap(i, j int) {
s[i], s[j] = s[j], s[i]
}
// Less sorts the IPListEntry objects by CIDR prefix then IP address.
// Given that the same IP cannot map to more than one identity, no further
// sorting is performed.
func (s IPListEntrySlice) Less(i, j int) bool {
_, iNet, _ := net.ParseCIDR(*s[i].Cidr)
_, jNet, _ := net.ParseCIDR(*s[j].Cidr)
iPrefixSize, _ := iNet.Mask.Size()
jPrefixSize, _ := jNet.Mask.Size()
if iPrefixSize == jPrefixSize {
return bytes.Compare(iNet.IP, jNet.IP) < 0
}
return iPrefixSize < jPrefixSize
}
func (s IPListEntrySlice) Len() int {
return len(s)
}