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wgengine/magicsock: update, flesh out a TODO

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This commit is contained in:
Brad Fitzpatrick 2020-07-29 12:59:11 -07:00
parent d96d26c22a
commit d55fdd4669
1 changed files with 5 additions and 2 deletions
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7
wgengine/magicsock/magicsock.go
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@ -1262,8 +1262,11 @@ func (c *Conn) runDerpWriter(ctx context.Context, dc *derphttp.Client, ch <-chan
// The provided addr and ipp must match. // The provided addr and ipp must match.
// //
// TODO(bradfitz): add a fast path that returns nil here for normal // TODO(bradfitz): add a fast path that returns nil here for normal
// wireguard-go transport packets; IIRC wireguard-go only uses this // wireguard-go transport packets; wireguard-go only uses this
// Endpoint for the relatively rare non-data packets. // Endpoint for the relatively rare non-data packets; but we need the
// Endpoint to find the UDPAddr to return to wireguard anyway, so no
// benefit unless we can, say, always return the same fake UDPAddr for
// all packets.
func (c *Conn) findEndpoint(ipp netaddr.IPPort, addr *net.UDPAddr) conn.Endpoint { func (c *Conn) findEndpoint(ipp netaddr.IPPort, addr *net.UDPAddr) conn.Endpoint {
c.mu.Lock() c.mu.Lock()
defer c.mu.Unlock() defer c.mu.Unlock()