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tailcfg: add DNS address list for IsWireGuardOnly nodes

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Tailscale exit nodes provide DNS service over the peer API, however
IsWireGuardOnly nodes do not have a peer API, and instead need client
DNS parameters passed in their node description.

For Mullvad nodes this will contain the in network 10.64.0.1 address.

Updates #9377

Signed-off-by: James Tucker <james@tailscale.com>
This commit is contained in:
James Tucker
2023-09-14 10:04:31 -07:00
committed by James Tucker
parent 335a5aaf9a
commit e7727db553
9 changed files with 160 additions and 2 deletions
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7
tailcfg/tailcfg_clone.go
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@ -65,6 +65,12 @@ func (src *Node) Clone() *Node {
if dst.SelfNodeV4MasqAddrForThisPeer != nil {
dst.SelfNodeV4MasqAddrForThisPeer = ptr.To(*src.SelfNodeV4MasqAddrForThisPeer)
}
if src.ExitNodeDNSResolvers != nil {
dst.ExitNodeDNSResolvers = make([]*dnstype.Resolver, len(src.ExitNodeDNSResolvers))
for i := range dst.ExitNodeDNSResolvers {
dst.ExitNodeDNSResolvers[i] = src.ExitNodeDNSResolvers[i].Clone()
}
}
return dst
}
@ -101,6 +107,7 @@ var _NodeCloneNeedsRegeneration = Node(struct {
Expired bool
SelfNodeV4MasqAddrForThisPeer *netip.Addr
IsWireGuardOnly bool
ExitNodeDNSResolvers []*dnstype.Resolver
}{})
// Clone makes a deep copy of Hostinfo.