package runconfig // import "github.com/docker/docker/runconfig"

 import (
 	"fmt"

 	"github.com/docker/docker/api/types/container"

 	"github.com/docker/docker/pkg/sysinfo"

 )

 // DefaultDaemonNetworkMode returns the default network stack the daemon should
 // use.

 func DefaultDaemonNetworkMode() container.NetworkMode {

 	return container.NetworkMode("nat")

 }

 
 // IsPreDefinedNetwork indicates if a network is predefined by the daemon
 func IsPreDefinedNetwork(network string) bool {

 	return !container.NetworkMode(network).IsUserDefined()

 }

 // validateNetMode ensures that the various combinations of requested

 // network settings are valid.

 func validateNetMode(c *container.Config, hc *container.HostConfig) error {

 	if hc == nil {
 		return nil
 	}

 	err := validateNetContainerMode(c, hc)

 	if err != nil {
 		return err
 	}
 
 	if hc.NetworkMode.IsContainer() && hc.Isolation.IsHyperV() {

 		return fmt.Errorf("Using the network stack of another container is not supported while using Hyper-V Containers")

 	}

 	return nil
 }
 

 // validateIsolation performs platform specific validation of the

 // isolation in the hostconfig structure. Windows supports 'default' (or

 // blank), 'process', or 'hyperv'.

 func validateIsolation(hc *container.HostConfig) error {

 	// We may not be passed a host config, such as in the case of docker commit
 	if hc == nil {
 		return nil
 	}
 	if !hc.Isolation.IsValid() {

 		return fmt.Errorf("Invalid isolation: %q. Windows supports 'default', 'process', or 'hyperv'", hc.Isolation)

 	}
 	return nil
 }

 // validateQoS performs platform specific validation of the Qos settings
 func validateQoS(hc *container.HostConfig) error {

 	return nil
 }

 // validateResources performs platform specific validation of the resource settings
 func validateResources(hc *container.HostConfig, si *sysinfo.SysInfo) error {

 	// We may not be passed a host config, such as in the case of docker commit
 	if hc == nil {
 		return nil
 	}
 	if hc.Resources.CPURealtimePeriod != 0 {

 		return fmt.Errorf("Windows does not support CPU real-time period")

 	}
 	if hc.Resources.CPURealtimeRuntime != 0 {

 		return fmt.Errorf("Windows does not support CPU real-time runtime")

 	}
 	return nil
 }

 
 // validatePrivileged performs platform specific validation of the Privileged setting
 func validatePrivileged(hc *container.HostConfig) error {
 	// We may not be passed a host config, such as in the case of docker commit
 	if hc == nil {
 		return nil
 	}
 	if hc.Privileged {

 		return fmt.Errorf("Windows does not support privileged mode")

 	}
 	return nil
 }

 
 // validateReadonlyRootfs performs platform specific validation of the ReadonlyRootfs setting
 func validateReadonlyRootfs(hc *container.HostConfig) error {
 	// We may not be passed a host config, such as in the case of docker commit
 	if hc == nil {
 		return nil
 	}
 	if hc.ReadonlyRootfs {

 		return fmt.Errorf("Windows does not support root filesystem in read-only mode")

 	}
 	return nil
 }