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ipn/ipnlocal: delete some unused code

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Updates #cleanup

Change-Id: I90b46c476f135124d97288e776c2b428b351b8b8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2023-09-17 10:27:54 -05:00
committed by Brad Fitzpatrick
parent 760b945bc0
commit 0f3c279b86
2 changed files with 0 additions and 154 deletions
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47
ipn/ipnlocal/local.go
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@@ -1833,53 +1833,6 @@ func shrinkDefaultRoute(route netip.Prefix, localInterfaceRoutes *netipx.IPSet,
return b.IPSet()
}
// dnsCIDRsEqual determines whether two CIDR lists are equal
// for DNS map construction purposes (that is, only the first entry counts).
func dnsCIDRsEqual(newAddr, oldAddr views.Slice[netip.Prefix]) bool {
if newAddr.Len() != oldAddr.Len() {
return false
}
if newAddr.Len() == 0 || newAddr.At(0) == oldAddr.At(0) {
return true
}
return false
}
// dnsMapsEqual determines whether the new and the old network map
// induce the same DNS map. It does so without allocating memory,
// at the expense of giving false negatives if peers are reordered.
func dnsMapsEqual(new, old *netmap.NetworkMap) bool {
if (old == nil) != (new == nil) {
return false
}
if old == nil && new == nil {
return true
}
if len(new.Peers) != len(old.Peers) {
return false
}
if new.Name != old.Name {
return false
}
if !dnsCIDRsEqual(views.SliceOf(new.Addresses), views.SliceOf(old.Addresses)) {
return false
}
for i, newPeer := range new.Peers {
oldPeer := old.Peers[i]
if newPeer.Name() != oldPeer.Name() {
return false
}
if !dnsCIDRsEqual(newPeer.Addresses(), oldPeer.Addresses()) {
return false
}
}
return true
}
// readPoller is a goroutine that receives service lists from
// b.portpoll and propagates them into the controlclient's HostInfo.
func (b *LocalBackend) readPoller() {