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maybe only return ipv4? not always?

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Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit is contained in:
Kristoffer Dalby
2026-03-04 17:50:39 +01:00
committed by Kristoffer Dalby
parent f01052c85f
commit 6f32dcf6f9
3 changed files with 26 additions and 16 deletions
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17
hscontrol/types/node.go
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@@ -300,9 +300,22 @@ func (node *Node) InIPSet(set *netipx.IPSet) bool {
// AppendToIPSet adds the individual ips in NodeAddresses to a
// given netipx.IPSetBuilder.
func (node *Node) AppendToIPSet(build *netipx.IPSetBuilder) {
for _, ip := range node.IPs() {
build.Add(ip)
if node.IPv4 != nil {
build.Add(*node.IPv4)
return
}
if node.IPv6 != nil {
build.Add(*node.IPv6)
}
// TODO(kradalby): Evaluate what we want to do here:
// Tailscale only adds the IPv4 addresses to any packet filter rule that is resolved to a given node.
// Presumably, it will add the IPv4 if a node does not have an IPv4.
// Until this change, we always added both, and that might be something people are dependent on, and we might want to keep it.
// for _, ip := range node.IPs() {
// build.Add(ip)
// }
}
func (node *Node) CanAccess(matchers []matcher.Match, node2 *Node) bool {