libpod: rm some unused freebsd code

This fixes a bunch of "unused" linter warnings on freebsd.

Signed-off-by: Kir Kolyshkin <[email protected]>

Author: kolyshkin

libpod/networking_freebsd.go

@@ -9,12 +9,10 @@ import (
 	"fmt"
 	"net"
 	"os/exec"
-	"path/filepath"
 
 	"github.com/containers/buildah/pkg/jail"
 	"github.com/containers/common/libnetwork/types"
 	"github.com/containers/podman/v5/libpod/define"
-	"github.com/containers/storage/pkg/lockfile"
 	"github.com/sirupsen/logrus"
 )
 
@@ -46,38 +44,6 @@ type NetstatAddress struct {
 	Collisions uint64 `json:"collisions"`
 }
 
-type RootlessNetNS struct {
-	dir  string
-	Lock *lockfile.LockFile
-}
-
-// getPath will join the given path to the rootless netns dir
-func (r *RootlessNetNS) getPath(path string) string {
-	return filepath.Join(r.dir, path)
-}
-
-// Do - run the given function in the rootless netns.
-// It does not lock the rootlessCNI lock, the caller
-// should only lock when needed, e.g. for network operations.
-func (r *RootlessNetNS) Do(toRun func() error) error {
-	return errors.New("not supported on freebsd")
-}
-
-// Cleanup the rootless network namespace if needed.
-// It checks if we have running containers with the bridge network mode.
-// Cleanup() expects that r.Lock is locked
-func (r *RootlessNetNS) Cleanup(runtime *Runtime) error {
-	return errors.New("not supported on freebsd")
-}
-
-// GetRootlessNetNs returns the rootless netns object. If create is set to true
-// the rootless network namespace will be created if it does not already exist.
-// If called as root it returns always nil.
-// On success the returned RootlessCNI lock is locked and must be unlocked by the caller.
-func (r *Runtime) GetRootlessNetNs(new bool) (*RootlessNetNS, error) {
-	return nil, nil
-}
-
 func getSlirp4netnsIP(subnet *net.IPNet) (*net.IP, error) {
 	return nil, errors.New("not implemented GetSlirp4netnsIP")
 }
@@ -264,7 +230,3 @@ func (c *Container) inspectJoinedNetworkNS(networkns string) (q types.StatusBloc
 func (c *Container) reloadRootlessRLKPortMapping() error {
 	return errors.New("unsupported (*Container).reloadRootlessRLKPortMapping")
 }
-
-func (c *Container) setupRootlessNetwork() error {
-	return nil
-}

libpod/util_freebsd.go

@@ -3,26 +3,12 @@
 package libpod
 
 import (
-	"errors"
 	"syscall"
 
-	spec "github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/sirupsen/logrus"
 	"golang.org/x/sys/unix"
 )
 
-// systemdSliceFromPath makes a new systemd slice under the given parent with
-// the given name.
-// The parent must be a slice. The name must NOT include ".slice"
-func systemdSliceFromPath(parent, name string, resources *spec.LinuxResources) (string, error) {
-	return "", errors.New("not implemented systemdSliceFromPath")
-}
-
-// deleteSystemdCgroup deletes the systemd cgroup at the given location
-func deleteSystemdCgroup(path string, resources *spec.LinuxResources) error {
-	return nil
-}
-
 // No equivalent on FreeBSD?
 func LabelVolumePath(path, mountLabel string) error {
 	return nil