network

package

v0.0.0-...-3ea5cda Latest Latest Go to latest Published: Jun 10, 2022 License: MIT Imports: 7 Imported by: 0

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Repository

github.com/wqvoon/cbox

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Documentation ¶

Index ¶

func CleanAddr(dev netlink.Link)
func CreateNamespace() int
func EnterNamespaceByFd(fd int)
func Init()
func InitBridge()
func SetDefaultRoute(via net.IP, dev *Device)
func SetupLookback()
type Device
- func GetOrCreateBridge(name string) *Device
type VethPair
- func CreateVethPairFor(containerID string) *VethPair

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func CleanAddr ¶

func CleanAddr(dev netlink.Link)

清空一个设备的所有地址

func CreateNamespace ¶

func CreateNamespace() int

创建一个新的网络命名空间并返回其 fd，当前进程依然留在原命名空间中原理在于切换当前进程的命名空间并不会影响已打开的文件描述符所以当前进程就可以根据这些打开的描述符在不同命名空间中反复横跳 fd 的关闭由调用方接管

func EnterNamespaceByFd ¶

func EnterNamespaceByFd(fd int)

func Init ¶

func Init()

func InitBridge ¶

func InitBridge()

初始化网桥设备，如果不存在则创建，否则更新其地址并将其启动

func SetDefaultRoute ¶

func SetDefaultRoute(via net.IP, dev *Device)

设置默认路由

func SetupLookback ¶

func SetupLookback()

启动 loopback 设备

Types ¶

type Device ¶

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

var Bridge *Device

func GetOrCreateBridge ¶

func GetOrCreateBridge(name string) *Device

获取或创建一个网桥

func (*Device) GetIP ¶

func (d *Device) GetIP() net.IP

返回设备的 ip

func (*Device) SetAddress ¶

func (d *Device) SetAddress(cidr string)

为设备设置地址

func (*Device) SetMaster ¶

func (d *Device) SetMaster(master *Device)

设置主设备，这里用于连接网桥

func (*Device) SetNamespace ¶

func (d *Device) SetNamespace(nsFd int)

根据 fd 设置设备的网络命名空间

func (*Device) SetUp ¶

func (d *Device) SetUp()

启动设备

type VethPair ¶

type VethPair struct {
	HostPeer *Device // 宿主机的一端
	CntrPeer *Device // 容器的一端
}

func CreateVethPairFor ¶

func CreateVethPairFor(containerID string) *VethPair

创建 containerID 对应的容器要使用的 veth pair 设备

Source Files ¶

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Directories ¶

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