mirror of https://github.com/containers/podman.git
70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
package util
|
|
|
|
import (
|
|
"net"
|
|
|
|
"github.com/containers/podman/v3/libpod/define"
|
|
"github.com/containers/podman/v3/libpod/network/types"
|
|
"github.com/containers/podman/v3/libpod/network/util"
|
|
pkgutil "github.com/containers/podman/v3/pkg/util"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
func CreateBridge(n NetUtil, network *types.Network, usedNetworks []*net.IPNet) error {
|
|
if network.NetworkInterface != "" {
|
|
bridges := GetBridgeInterfaceNames(n)
|
|
if pkgutil.StringInSlice(network.NetworkInterface, bridges) {
|
|
return errors.Errorf("bridge name %s already in use", network.NetworkInterface)
|
|
}
|
|
if !define.NameRegex.MatchString(network.NetworkInterface) {
|
|
return errors.Wrapf(define.RegexError, "bridge name %s invalid", network.NetworkInterface)
|
|
}
|
|
} else {
|
|
var err error
|
|
network.NetworkInterface, err = GetFreeDeviceName(n)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if network.IPAMOptions["driver"] != types.DHCPIPAMDriver {
|
|
if len(network.Subnets) == 0 {
|
|
freeSubnet, err := GetFreeIPv4NetworkSubnet(usedNetworks)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
network.Subnets = append(network.Subnets, *freeSubnet)
|
|
}
|
|
// ipv6 enabled means dual stack, check if we already have
|
|
// a ipv4 or ipv6 subnet and add one if not.
|
|
if network.IPv6Enabled {
|
|
ipv4 := false
|
|
ipv6 := false
|
|
for _, subnet := range network.Subnets {
|
|
if util.IsIPv6(subnet.Subnet.IP) {
|
|
ipv6 = true
|
|
}
|
|
if util.IsIPv4(subnet.Subnet.IP) {
|
|
ipv4 = true
|
|
}
|
|
}
|
|
if !ipv4 {
|
|
freeSubnet, err := GetFreeIPv4NetworkSubnet(usedNetworks)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
network.Subnets = append(network.Subnets, *freeSubnet)
|
|
}
|
|
if !ipv6 {
|
|
freeSubnet, err := GetFreeIPv6NetworkSubnet(usedNetworks)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
network.Subnets = append(network.Subnets, *freeSubnet)
|
|
}
|
|
}
|
|
network.IPAMOptions["driver"] = types.HostLocalIPAMDriver
|
|
}
|
|
return nil
|
|
}
|