devices

package

v0.13.2 Latest Latest Go to latest Published: Mar 19, 2015 License: Apache-2.0, Apache-2.0 Imports: 6 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/sjug/kubernetes

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func GetDeviceNumberString(deviceNumber int64) string
func Major(devNumber int) int64
func Minor(devNumber int) int64
func Mkdev(majorNumber int64, minorNumber int64) int
type Device
- func GetDevice(path, cgroupPermissions string) (*Device, error)
- func GetHostDeviceNodes() ([]*Device, error)
- func (device *Device) GetCgroupAllowString() string

Constants ¶

View Source

const (
	Wildcard = -1
)

Variables ¶

View Source

var (
	DefaultSimpleDevices = []*Device{

		{
			Path:              "/dev/null",
			Type:              'c',
			MajorNumber:       1,
			MinorNumber:       3,
			CgroupPermissions: "rwm",
			FileMode:          0666,
		},
		{
			Path:              "/dev/zero",
			Type:              'c',
			MajorNumber:       1,
			MinorNumber:       5,
			CgroupPermissions: "rwm",
			FileMode:          0666,
		},

		{
			Path:              "/dev/full",
			Type:              'c',
			MajorNumber:       1,
			MinorNumber:       7,
			CgroupPermissions: "rwm",
			FileMode:          0666,
		},

		{
			Path:              "/dev/tty",
			Type:              'c',
			MajorNumber:       5,
			MinorNumber:       0,
			CgroupPermissions: "rwm",
			FileMode:          0666,
		},

		{
			Path:              "/dev/urandom",
			Type:              'c',
			MajorNumber:       1,
			MinorNumber:       9,
			CgroupPermissions: "rwm",
			FileMode:          0666,
		},
		{
			Path:              "/dev/random",
			Type:              'c',
			MajorNumber:       1,
			MinorNumber:       8,
			CgroupPermissions: "rwm",
			FileMode:          0666,
		},
	}

	DefaultAllowedDevices = append([]*Device{

		{
			Type:              'c',
			MajorNumber:       Wildcard,
			MinorNumber:       Wildcard,
			CgroupPermissions: "m",
		},
		{
			Type:              'b',
			MajorNumber:       Wildcard,
			MinorNumber:       Wildcard,
			CgroupPermissions: "m",
		},

		{
			Path:              "/dev/console",
			Type:              'c',
			MajorNumber:       5,
			MinorNumber:       1,
			CgroupPermissions: "rwm",
		},
		{
			Path:              "/dev/tty0",
			Type:              'c',
			MajorNumber:       4,
			MinorNumber:       0,
			CgroupPermissions: "rwm",
		},
		{
			Path:              "/dev/tty1",
			Type:              'c',
			MajorNumber:       4,
			MinorNumber:       1,
			CgroupPermissions: "rwm",
		},

		{
			Path:              "",
			Type:              'c',
			MajorNumber:       136,
			MinorNumber:       Wildcard,
			CgroupPermissions: "rwm",
		},
		{
			Path:              "",
			Type:              'c',
			MajorNumber:       5,
			MinorNumber:       2,
			CgroupPermissions: "rwm",
		},

		{
			Path:              "",
			Type:              'c',
			MajorNumber:       10,
			MinorNumber:       200,
			CgroupPermissions: "rwm",
		},
	}, DefaultSimpleDevices...)

	DefaultAutoCreatedDevices = append([]*Device{
		{

			Path:              "/dev/fuse",
			Type:              'c',
			MajorNumber:       10,
			MinorNumber:       229,
			CgroupPermissions: "rwm",
		},
	}, DefaultSimpleDevices...)
)

View Source

var (
	ErrNotADeviceNode = errors.New("not a device node")
)

Functions ¶

func GetDeviceNumberString ¶

func GetDeviceNumberString(deviceNumber int64) string

func Major ¶

func Major(devNumber int) int64

func Minor ¶

func Minor(devNumber int) int64

func Mkdev ¶

func Mkdev(majorNumber int64, minorNumber int64) int

Types ¶

type Device ¶

type Device struct {
	Type              rune        `json:"type,omitempty"`
	Path              string      `json:"path,omitempty"`               // It is fine if this is an empty string in the case that you are using Wildcards
	MajorNumber       int64       `json:"major_number,omitempty"`       // Use the wildcard constant for wildcards.
	MinorNumber       int64       `json:"minor_number,omitempty"`       // Use the wildcard constant for wildcards.
	CgroupPermissions string      `json:"cgroup_permissions,omitempty"` // Typically just "rwm"
	FileMode          os.FileMode `json:"file_mode,omitempty"`          // The permission bits of the file's mode
	Uid               uint32      `json:"uid,omitempty"`
	Gid               uint32      `json:"gid,omitempty"`
}

func GetDevice ¶

func GetDevice(path, cgroupPermissions string) (*Device, error)

Given the path to a device and it's cgroup_permissions(which cannot be easilly queried) look up the information about a linux device and return that information as a Device struct.

func GetHostDeviceNodes ¶

func GetHostDeviceNodes() ([]*Device, error)

func (*Device) GetCgroupAllowString ¶

func (device *Device) GetCgroupAllowString() string

Source Files ¶

View all Source files

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