Make get devices function public
Signed-off-by: sashayakovtseva <sasha@sylabs.io>
This commit is contained in:
parent
2e94378464
commit
afc24792dc
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@ -7,11 +7,11 @@ import (
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"path/filepath"
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"path/filepath"
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"github.com/opencontainers/runc/libcontainer/configs"
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"github.com/opencontainers/runc/libcontainer/configs"
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"golang.org/x/sys/unix"
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"golang.org/x/sys/unix"
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)
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)
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var (
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var (
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// ErrNotADevice denotes that a file is not a valid linux device.
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ErrNotADevice = errors.New("not a device node")
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ErrNotADevice = errors.New("not a device node")
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)
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)
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@ -21,7 +21,8 @@ var (
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ioutilReadDir = ioutil.ReadDir
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ioutilReadDir = ioutil.ReadDir
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)
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)
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// Given the path to a device and its cgroup_permissions(which cannot be easily queried) look up the information about a linux device and return that information as a Device struct.
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// Given the path to a device and its cgroup_permissions(which cannot be easily queried) look up the
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// information about a linux device and return that information as a Device struct.
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func DeviceFromPath(path, permissions string) (*configs.Device, error) {
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func DeviceFromPath(path, permissions string) (*configs.Device, error) {
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var stat unix.Stat_t
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var stat unix.Stat_t
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err := unixLstat(path, &stat)
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err := unixLstat(path, &stat)
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@ -60,16 +61,19 @@ func DeviceFromPath(path, permissions string) (*configs.Device, error) {
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}, nil
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}, nil
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}
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}
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// HostDevices returns all devices that can be found under /dev directory.
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func HostDevices() ([]*configs.Device, error) {
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func HostDevices() ([]*configs.Device, error) {
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return getDevices("/dev")
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return GetDevices("/dev")
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}
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}
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func getDevices(path string) ([]*configs.Device, error) {
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// GetDevices recursively traverses a directory specified by path
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// and returns all devices found there.
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func GetDevices(path string) ([]*configs.Device, error) {
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files, err := ioutilReadDir(path)
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files, err := ioutilReadDir(path)
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if err != nil {
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if err != nil {
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return nil, err
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return nil, err
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}
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}
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out := []*configs.Device{}
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var out []*configs.Device
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for _, f := range files {
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for _, f := range files {
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switch {
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switch {
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case f.IsDir():
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case f.IsDir():
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@ -79,7 +83,7 @@ func getDevices(path string) ([]*configs.Device, error) {
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case "pts", "shm", "fd", "mqueue", ".lxc", ".lxd-mounts", ".udev":
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case "pts", "shm", "fd", "mqueue", ".lxc", ".lxd-mounts", ".udev":
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continue
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continue
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default:
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default:
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sub, err := getDevices(filepath.Join(path, f.Name()))
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sub, err := GetDevices(filepath.Join(path, f.Name()))
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if err != nil {
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if err != nil {
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return nil, err
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return nil, err
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}
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}
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