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package libvirt
import (
"encoding/xml"
"fmt"
"github.com/libvirt/libvirt-go-xml"
)
// HasDHCP checks if the network has a DHCP server managed by libvirt
func HasDHCP(net libvirtxml.Network) bool {
if net.Forward != nil {
if net.Forward.Mode == "nat" || net.Forward.Mode == "route" || net.Forward.Mode == "" {
return true
}
}
return false
}
// Creates a network definition from a XML
func newDefNetworkFromXML(s string) (libvirtxml.Network, error) {
var networkDef libvirtxml.Network
err := xml.Unmarshal([]byte(s), &networkDef)
if err != nil {
return libvirtxml.Network{}, err
}
return networkDef, nil
}
func newDefNetworkfromLibvirt(network Network) (libvirtxml.Network, error) {
networkXMLDesc, err := network.GetXMLDesc(0)
if err != nil {
return libvirtxml.Network{}, fmt.Errorf("Error retrieving libvirt domain XML description: %s", err)
}
networkDef := libvirtxml.Network{}
err = xml.Unmarshal([]byte(networkXMLDesc), &networkDef)
if err != nil {
return libvirtxml.Network{}, fmt.Errorf("Error reading libvirt network XML description: %s", err)
}
return networkDef, nil
}
// Creates a network definition with the defaults the provider uses
func newNetworkDef() libvirtxml.Network {
const defNetworkXML = `
<network>
<name>default</name>
<forward mode='nat'>
<nat>
<port start='1024' end='65535'/>
</nat>
</forward>
</network>`
if d, err := newDefNetworkFromXML(defNetworkXML); err != nil {
panic(fmt.Sprintf("Unexpected error while parsing default network definition: %s", err))
} else {
return d
}
}
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