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8489dc4345
With the advent of Podman 2.0.0 we crossed the magical barrier of go modules. While we were able to continue importing all packages inside of the project, the project could not be vendored anymore from the outside. Move the go module to new major version and change all imports to `github.com/containers/libpod/v2`. The renaming of the imports was done via `gomove` [1]. [1] https://github.com/KSubedi/gomove Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
64 lines
1.6 KiB
Go
64 lines
1.6 KiB
Go
package network
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import (
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"fmt"
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"os/exec"
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"github.com/containers/common/pkg/config"
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"github.com/containers/libpod/v2/pkg/util"
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"github.com/containers/libpod/v2/utils"
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"github.com/sirupsen/logrus"
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)
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// GetFreeDeviceName returns a device name that is unused; used when no network
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// name is provided by user
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func GetFreeDeviceName(config *config.Config) (string, error) {
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var (
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deviceNum uint
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deviceName string
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)
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networkNames, err := GetNetworkNamesFromFileSystem(config)
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if err != nil {
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return "", err
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}
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liveNetworksNames, err := GetLiveNetworkNames()
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if err != nil {
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return "", err
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}
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bridgeNames, err := GetBridgeNamesFromFileSystem(config)
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if err != nil {
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return "", err
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}
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for {
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deviceName = fmt.Sprintf("%s%d", CNIDeviceName, deviceNum)
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logrus.Debugf("checking if device name %q exists in other cni networks", deviceName)
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if util.StringInSlice(deviceName, networkNames) {
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deviceNum++
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continue
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}
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logrus.Debugf("checking if device name %q exists in live networks", deviceName)
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if util.StringInSlice(deviceName, liveNetworksNames) {
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deviceNum++
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continue
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}
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logrus.Debugf("checking if device name %q already exists as a bridge name ", deviceName)
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if !util.StringInSlice(deviceName, bridgeNames) {
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break
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}
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deviceNum++
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}
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return deviceName, nil
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}
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// RemoveInterface removes an interface by the given name
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func RemoveInterface(interfaceName string) error {
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// Make sure we have the ip command on the system
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ipPath, err := exec.LookPath("ip")
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if err != nil {
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return err
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}
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// Delete the network interface
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_, err = utils.ExecCmd(ipPath, []string{"link", "del", interfaceName}...)
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return err
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}
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