all: sync with master; upd chlog
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@@ -79,21 +79,6 @@ func (s *v4Server) newDHCPConn(iface *net.Interface) (c net.PacketConn, err erro
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}, nil
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}
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// wrapErrs is a helper to wrap the errors from two independent underlying
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// connections.
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func (*dhcpConn) wrapErrs(action string, udpConnErr, rawConnErr error) (err error) {
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switch {
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case udpConnErr != nil && rawConnErr != nil:
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return errors.List(fmt.Sprintf("%s both connections", action), udpConnErr, rawConnErr)
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case udpConnErr != nil:
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return fmt.Errorf("%s udp connection: %w", action, udpConnErr)
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case rawConnErr != nil:
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return fmt.Errorf("%s raw connection: %w", action, rawConnErr)
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default:
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return nil
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}
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}
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// WriteTo implements net.PacketConn for *dhcpConn. It selects the underlying
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// connection to write to based on the type of addr.
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func (c *dhcpConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
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@@ -115,7 +100,7 @@ func (c *dhcpConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
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Port: dhcpv4.ClientPort,
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})
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return n, c.wrapErrs("writing to", uerr, rerr)
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return n, wrapErrs("writing to", uerr, rerr)
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case *net.UDPAddr:
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if addr.IP.Equal(net.IPv4bcast) {
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// Broadcast the message for the client which supports
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@@ -155,7 +140,7 @@ func (c *dhcpConn) Close() (err error) {
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rerr = nil
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}
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return c.wrapErrs("closing", c.udpConn.Close(), rerr)
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return wrapErrs("closing", c.udpConn.Close(), rerr)
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}
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// LocalAddr implements net.PacketConn for *dhcpConn.
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@@ -165,12 +150,12 @@ func (c *dhcpConn) LocalAddr() (a net.Addr) {
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// SetDeadline implements net.PacketConn for *dhcpConn.
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func (c *dhcpConn) SetDeadline(t time.Time) (err error) {
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return c.wrapErrs("setting deadline on", c.udpConn.SetDeadline(t), c.rawConn.SetDeadline(t))
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return wrapErrs("setting deadline on", c.udpConn.SetDeadline(t), c.rawConn.SetDeadline(t))
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}
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// SetReadDeadline implements net.PacketConn for *dhcpConn.
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func (c *dhcpConn) SetReadDeadline(t time.Time) error {
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return c.wrapErrs(
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return wrapErrs(
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"setting reading deadline on",
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c.udpConn.SetReadDeadline(t),
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c.rawConn.SetReadDeadline(t),
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@@ -179,7 +164,7 @@ func (c *dhcpConn) SetReadDeadline(t time.Time) error {
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// SetWriteDeadline implements net.PacketConn for *dhcpConn.
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func (c *dhcpConn) SetWriteDeadline(t time.Time) error {
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return c.wrapErrs(
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return wrapErrs(
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"setting writing deadline on",
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c.udpConn.SetWriteDeadline(t),
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c.rawConn.SetWriteDeadline(t),
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