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
| // Copyright 2011 The Go 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 net
|
| import (
| "syscall"
|
| "internal/x/net/route"
| )
|
| func interfaceMessages(ifindex int) ([]route.Message, error) {
| rib, err := route.FetchRIB(syscall.AF_UNSPEC, syscall.NET_RT_IFLIST, ifindex)
| if err != nil {
| return nil, err
| }
| return route.ParseRIB(syscall.NET_RT_IFLIST, rib)
| }
|
| // interfaceMulticastAddrTable returns addresses for a specific
| // interface.
| func interfaceMulticastAddrTable(ifi *Interface) ([]Addr, error) {
| rib, err := route.FetchRIB(syscall.AF_UNSPEC, syscall.NET_RT_IFLIST2, ifi.Index)
| if err != nil {
| return nil, err
| }
| msgs, err := route.ParseRIB(syscall.NET_RT_IFLIST2, rib)
| if err != nil {
| return nil, err
| }
| ifmat := make([]Addr, 0, len(msgs))
| for _, m := range msgs {
| switch m := m.(type) {
| case *route.InterfaceMulticastAddrMessage:
| if ifi.Index != m.Index {
| continue
| }
| var ip IP
| switch sa := m.Addrs[syscall.RTAX_IFA].(type) {
| case *route.Inet4Addr:
| ip = IPv4(sa.IP[0], sa.IP[1], sa.IP[2], sa.IP[3])
| case *route.Inet6Addr:
| ip = make(IP, IPv6len)
| copy(ip, sa.IP[:])
| }
| if ip != nil {
| ifmat = append(ifmat, &IPAddr{IP: ip})
| }
| }
| }
| return ifmat, nil
| }
|
|
