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Fix: should return io.EOF immediately

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This commit is contained in:
gVisor bot 2021-11-20 12:44:31 +08:00
parent 8e330640ea
commit 9f8324e9e3
1 changed files with 9 additions and 28 deletions
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37
adapter/outbound/reject.go
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@ -21,7 +21,7 @@ func (r *Reject) DialContext(ctx context.Context, metadata *C.Metadata, opts ...
// ListenPacketContext implements C.ProxyAdapter
func (r *Reject) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (C.PacketConn, error) {
return newPacketConn(newNopPacketConn(), r), nil
return newPacketConn(&nopPacketConn{}, r), nil
}
func NewReject() *Reject {
@ -51,31 +51,12 @@ func (rw *nopConn) SetDeadline(time.Time) error { return nil }
func (rw *nopConn) SetReadDeadline(time.Time) error { return nil }
func (rw *nopConn) SetWriteDeadline(time.Time) error { return nil }
type nopPacketConn struct {
ch chan struct{}
}
type nopPacketConn struct{}
func (npc *nopPacketConn) WriteTo(b []byte, addr net.Addr) (n int, err error) {
return len(b), nil
}
func (npc *nopPacketConn) ReadFrom(b []byte) (int, net.Addr, error) {
<-npc.ch
return 0, nil, io.EOF
}
func (npc *nopPacketConn) Close() error {
close(npc.ch)
return nil
}
func (npc *nopPacketConn) LocalAddr() net.Addr { return &net.UDPAddr{IP: net.IPv4zero, Port: 0} }
func (npc *nopPacketConn) SetDeadline(time.Time) error { return nil }
func (npc *nopPacketConn) SetReadDeadline(time.Time) error { return nil }
func (npc *nopPacketConn) SetWriteDeadline(time.Time) error { return nil }
func newNopPacketConn() *nopPacketConn {
return &nopPacketConn{
ch: make(chan struct{}),
}
}
func (npc *nopPacketConn) WriteTo(b []byte, addr net.Addr) (n int, err error) { return len(b), nil }
func (npc *nopPacketConn) ReadFrom(b []byte) (int, net.Addr, error) { return 0, nil, io.EOF }
func (npc *nopPacketConn) Close() error { return nil }
func (npc *nopPacketConn) LocalAddr() net.Addr { return &net.UDPAddr{IP: net.IPv4zero, Port: 0} }
func (npc *nopPacketConn) SetDeadline(time.Time) error { return nil }
func (npc *nopPacketConn) SetReadDeadline(time.Time) error { return nil }
func (npc *nopPacketConn) SetWriteDeadline(time.Time) error { return nil }