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https://github.com/golang/go
synced 2024-11-22 12:04:46 -07:00
c5cf662407
This also updates the vendored-in versions of several packages: 'go mod vendor' selects a consistent version of each module, but we had previously vendored an ad-hoc selection of packages. Notably, x/crypto/hkdf was previously vendored in at a much newer commit than the rest of x/crypto. Bringing the rest of x/crypto up to that commit introduced an import of golang.org/x/sys/cpu, which broke the js/wasm build, requiring an upgrade of x/sys to pick up CL 165749. Updates #30228 Updates #30241 Updates #25822 Change-Id: I5b3dbc232b7e6a048a158cbd8d36137af1efb711 Reviewed-on: https://go-review.googlesource.com/c/go/+/164623 Reviewed-by: Filippo Valsorda <filippo@golang.org>
54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package net
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import (
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"syscall"
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"golang.org/x/net/route"
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)
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func interfaceMessages(ifindex int) ([]route.Message, error) {
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rib, err := route.FetchRIB(syscall.AF_UNSPEC, syscall.NET_RT_IFLIST, ifindex)
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if err != nil {
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return nil, err
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}
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return route.ParseRIB(syscall.NET_RT_IFLIST, rib)
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}
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// interfaceMulticastAddrTable returns addresses for a specific
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// interface.
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func interfaceMulticastAddrTable(ifi *Interface) ([]Addr, error) {
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rib, err := route.FetchRIB(syscall.AF_UNSPEC, syscall.NET_RT_IFLIST2, ifi.Index)
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if err != nil {
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return nil, err
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}
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msgs, err := route.ParseRIB(syscall.NET_RT_IFLIST2, rib)
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if err != nil {
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return nil, err
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}
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ifmat := make([]Addr, 0, len(msgs))
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for _, m := range msgs {
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switch m := m.(type) {
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case *route.InterfaceMulticastAddrMessage:
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if ifi.Index != m.Index {
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continue
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}
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var ip IP
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switch sa := m.Addrs[syscall.RTAX_IFA].(type) {
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case *route.Inet4Addr:
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ip = IPv4(sa.IP[0], sa.IP[1], sa.IP[2], sa.IP[3])
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case *route.Inet6Addr:
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ip = make(IP, IPv6len)
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copy(ip, sa.IP[:])
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}
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if ip != nil {
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ifmat = append(ifmat, &IPAddr{IP: ip})
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}
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}
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}
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return ifmat, nil
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}
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