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tcpproxy: support half-close with gvisor conns #46

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Merged
merged 1 commit into from
Jan 21, 2025
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tcpproxy: support half-close with gvisor conns #46

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9 changes: 7 additions & 2 deletions tcpproxy.go
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Original file line number Diff line number Diff line change
Expand Up @@ -355,16 +355,21 @@ func tcpConn(c net.Conn) (t *net.TCPConn, ok bool) {
return nil, false
}

type closeReader interface{ CloseRead() error }
type closeWriter interface{ CloseWrite() error }

func goCloseConn(c net.Conn) { go c.Close() }

func closeRead(c net.Conn) {
if c, ok := tcpConn(c); ok {
// prefer the interfaces, for compatibility with e.g. gvisor/netstack.
if c, ok := UnderlyingConn(c).(closeReader); ok {
c.CloseRead()
}
}

func closeWrite(c net.Conn) {
if c, ok := tcpConn(c); ok {
// prefer the interfaces, for compatibility with e.g. gvisor/netstack.
if c, ok := UnderlyingConn(c).(closeWriter); ok {
c.CloseWrite()
}
}
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