Method bridgeNetwork.addPortMappings has a Cognitive Complexity of 61 (exceeds 20 allowed). Consider refactoring.

Open

func (n *bridgeNetwork) addPortMappings(
    epAddrV4, epAddrV6 *net.IPNet,
    cfg []types.PortBinding,
    defHostIP net.IP,
) (_ []portBinding, retErr error) {

• Read up
  Read up

Function attemptBindHostPorts has a Cognitive Complexity of 51 (exceeds 20 allowed). Consider refactoring.

Open

func attemptBindHostPorts(
    cfg []portBindingReq,
    proto string,
    hostPortStart, hostPortEnd uint16,
    proxyPath string,

• Read up
  Read up

File port_mapping_linux.go has 625 lines of code (exceeds 500 allowed). Consider refactoring.

Open

// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
//go:build go1.21

package bridge

Method bridgeNetwork.addPortMappings has 112 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func (n *bridgeNetwork) addPortMappings(
    epAddrV4, epAddrV6 *net.IPNet,
    cfg []types.PortBinding,
    defHostIP net.IP,
) (_ []portBinding, retErr error) {

Function attemptBindHostPorts has 67 lines of code (exceeds 50 allowed). Consider refactoring.

Open

func attemptBindHostPorts(
    cfg []portBindingReq,
    proto string,
    hostPortStart, hostPortEnd uint16,
    proxyPath string,

Method bridgeNetwork.addPortMappings has 11 return statements (exceeds 4 allowed).

Open

func (n *bridgeNetwork) addPortMappings(
    epAddrV4, epAddrV6 *net.IPNet,
    cfg []types.PortBinding,
    defHostIP net.IP,
) (_ []portBinding, retErr error) {

Function cmpPortBinding has 8 return statements (exceeds 4 allowed).

Open

func cmpPortBinding(a, b types.PortBinding) int {
    // Exact host port < host port range.
    aIsRange := a.HostPort == 0 || a.HostPort != a.HostPortEnd
    bIsRange := b.HostPort == 0 || b.HostPort != b.HostPortEnd
    if aIsRange != bIsRange {

Function setPerPortNAT has 5 arguments (exceeds 4 allowed). Consider refactoring.

Open

func setPerPortNAT(b portBinding, ipv iptables.IPVersion, proxyPath string, bridgeName string, enable bool) error {

Method bridgeNetwork.setPerPortIptables has 5 return statements (exceeds 4 allowed).

Open

func (n *bridgeNetwork) setPerPortIptables(b portBinding, enable bool) error {
    if (b.IP.To4() != nil) != (b.HostIP.To4() != nil) {
        // The binding is between containerV4 and hostV6 (not vice-versa as that
        // will have been rejected earlier). It's handled by docker-proxy, so no
        // additional iptables rules are required.

Function configurePortBindingIPv6 has 5 return statements (exceeds 4 allowed).

Open

func configurePortBindingIPv6(pdc portDriverClient, disableNAT bool, bnd types.PortBinding, containerIP, defHostIP net.IP) (portBindingReq, bool) {
    if containerIP == nil {
        return portBindingReq{}, false
    }
    if len(bnd.HostIP) > 0 && bnd.HostIP.To4() != nil {

Function bindTCPOrUDP has 5 return statements (exceeds 4 allowed).

Open

func bindTCPOrUDP(cfg portBindingReq, port, typ, proto int) (_ portBinding, retErr error) {
    pb := portBinding{PortBinding: cfg.PortBinding.GetCopy()}
    pb.HostPort = uint16(port)
    pb.HostPortEnd = pb.HostPort
    pb.childHostIP = cfg.childHostIP

Function bindSCTP has 5 return statements (exceeds 4 allowed).

Open

func bindSCTP(cfg portBindingReq, port int) (_ portBinding, retErr error) {
    pb := portBinding{PortBinding: cfg.GetCopy()}
    pb.HostPort = uint16(port)
    pb.HostPortEnd = pb.HostPort
    pb.childHostIP = cfg.childHostIP