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addr_linux: Skip BROADCAST and LABEL for non-ipv4

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The attributes IFA_BROADCAST and IFA_LABEL are only valid for ipv4: they
are not defined for ipv6 here:
http://elixir.free-electrons.com/linux/v4.6/source/net/ipv6/addrconf.c#L4231

This ignores addr.Broadcast and addr.Label for non-ipv4 addresses.
This commit is contained in:
Anatole Denis 2018-01-17 11:18:57 +00:00 committed by Alessandro Boch
parent 1882fa99fc
commit 422ffe659e
1 changed files with 12 additions and 10 deletions
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22
addr_linux.go
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@ -102,18 +102,20 @@ func (h *Handle) addrHandle(link Link, addr *Addr, req *nl.NetlinkRequest) error
}
}
if addr.Broadcast == nil {
calcBroadcast := make(net.IP, masklen/8)
for i := range localAddrData {
calcBroadcast[i] = localAddrData[i] | ^addr.Mask[i]
if family == FAMILY_V4 {
if addr.Broadcast == nil {
calcBroadcast := make(net.IP, masklen/8)
for i := range localAddrData {
calcBroadcast[i] = localAddrData[i] | ^addr.Mask[i]
}
addr.Broadcast = calcBroadcast
}
addr.Broadcast = calcBroadcast
}
req.AddData(nl.NewRtAttr(unix.IFA_BROADCAST, addr.Broadcast))
req.AddData(nl.NewRtAttr(unix.IFA_BROADCAST, addr.Broadcast))
if addr.Label != "" {
labelData := nl.NewRtAttr(unix.IFA_LABEL, nl.ZeroTerminated(addr.Label))
req.AddData(labelData)
if addr.Label != "" {
labelData := nl.NewRtAttr(unix.IFA_LABEL, nl.ZeroTerminated(addr.Label))
req.AddData(labelData)
}
}
_, err := req.Execute(unix.NETLINK_ROUTE, 0)