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net/portmapper: add upnp port mapping

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Add in UPnP portmapping, using goupnp library in order to get the UPnP client and run the
portmapping functions. This rips out anywhere where UPnP used to be in portmapping, and has a
flow separate from PMP and PCP.

RELNOTE=portmapper now supports UPnP mappings

Fixes #682
Updates #2109

Signed-off-by: julianknodt <julianknodt@gmail.com>
This commit is contained in:
julianknodt
2021-06-22 15:29:01 -07:00
committed by Julian Knodt
parent 236eb4d04d
commit 1bb6abc604
14 changed files with 432 additions and 53 deletions
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7
tailcfg/tailcfg.go
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@@ -1060,6 +1060,13 @@ type Debug struct {
// :0 to get a random local port, ignoring any configured
// fixed port.
RandomizeClientPort bool `json:",omitempty"`
/// DisableUPnP is whether the client will attempt to perform a UPnP portmapping.
// By default, we want to enable it to see if it works on more clients.
//
// If UPnP catastrophically fails for people, this should be set to True to kill
// new attempts at UPnP connections.
DisableUPnP opt.Bool `json:",omitempty"`
}
func (k MachineKey) String() string { return fmt.Sprintf("mkey:%x", k[:]) }