namespace

Documentation

Index

• Constants
• Variables
• func GetPathFromPid(nstype string, proc string, pid int) string
• func Set(ns *NsHandle) (err error)
• type NsHandle
  • func CurNsHandle(nstype string) (*NsHandle, error)
  • func NewNsHandle(nstype string, proc string, pid int) (*NsHandle, error)
  • func (ns NsHandle) Close() error
  • func (ns NsHandle) IsOpen() bool
  • func (ns NsHandle) String() string

Constants

const (
	NSMNT    = "mnt"
	NSUTS    = "uts"
	NSIPC    = "ipc"
	NSUSER   = "user"
	NSPID    = "pid"
	NSNET    = "net"
	NSCGROUP = "cgroup"
)

Variables

var (
	ErrNotImplemented = errors.New("not implemented")
)

var SYS_SETNS = map[string]uintptr{
	"386":     346,
	"amd64":   308,
	"arm64":   268,
	"arm":     375,
	"ppc64":   350,
	"ppc64le": 350,
	"s390x":   339,
}[runtime.GOARCH]

SYS_SETNS syscall allows changing the namespace of the current process.

Functions

func GetPathFromPid

func GetPathFromPid(nstype string, proc string, pid int) string

func Set

func Set(ns *NsHandle) (err error)

Set sets the current network namespace to the namespace represented by NsHandle.

Types

type NsHandle

type NsHandle struct {
	// contains filtered or unexported fields
}

NsHandle is a handle to a network namespace. It can be cast directly to an int and used as a file descriptor.

func CurNsHandle

func CurNsHandle(nstype string) (*NsHandle, error)

func NewNsHandle

func NewNsHandle(nstype string, proc string, pid int) (*NsHandle, error)

func (NsHandle) Close

func (ns NsHandle) Close() error

Close closes the NsHandle and resets its file descriptor to -1. It is not safe to use an NsHandle after Close() is called.

func (NsHandle) IsOpen

func (ns NsHandle) IsOpen() bool

IsOpen returns true if Close() has not been called.

func (NsHandle) String

func (ns NsHandle) String() string