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client, cmd/hello, ipn, wgengine: fix whois for netstack-forwarded connections

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Updates #504

Updates #707

Signed-off-by: Naman Sood <mail@nsood.in>
This commit is contained in:
Naman Sood
2021-03-15 17:59:35 -04:00
parent 44ab0acbdb
commit 770aa71ffb
8 changed files with 108 additions and 28 deletions
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13
wgengine/wgengine.go
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@@ -137,4 +137,17 @@ type Engine interface {
// Ping is a request to start a discovery ping with the peer handling
// the given IP and then call cb with its ping latency & method.
Ping(ip netaddr.IP, cb func(*ipnstate.PingResult))
// RegisterIPPortIdentity registers a given node (identified by its
// Tailscale IP) as temporarily having the given IP:port for whois lookups.
// The IP:port is generally a localhost IP and an ephemeral port, used
// while proxying connections to localhost.
RegisterIPPortIdentity(netaddr.IPPort, netaddr.IP)
// UnregisterIPPortIdentity removes a temporary IP:port registration.
UnregisterIPPortIdentity(netaddr.IPPort)
// WhoIsIPPort looks up an IP:port in the temporary registrations,
// and returns a matching Tailscale IP, if it exists.
WhoIsIPPort(netaddr.IPPort) (netaddr.IP, bool)
}