netutils2

package

v0.3.10-0-alpha2 Latest Latest Go to latest Published: Dec 15, 2022 License: Apache-2.0 Imports: 17 Imported by: 1

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Repository

github.com/yunionio/onecloud

Documentation ¶

Rendered for

Index ¶

Variables
func AddNicRoutes(routes *[][]string, nicDesc *types.SServerNic, mainIp string, nicCnt int, ...)
func DefaultSrcIpDev() (srcIp net.IP, ifname string, err error)
func ErrMacFormat(macStr string) error
func FormatMac(macStr string) string
func GetFreePort() (int, error)
func GetHttpRequestIp(r *http.Request) string
func GetMainNicFromDeployApi(nics []*types.SServerNic) (*types.SServerNic, error)
func GetNicDns(nicdesc *types.SServerNic) []string
func GetPrivatePrefixes(privatePrefixes []string) []string
func GetSecretInterfaceAddress() (string, int)
func IsTcpPortUsed(addr string, port int) bool
func MacEqual(mac1, mac2 string) bool
func MyIP() (ip string, err error)
func MyIPTo(dstIP string) (ip string, err error)
func NetBytes2Mask(mask []byte) string
func Netlen2Mask(netmasklen int) string
func Netmask2Len(mask string) int
func PrefixSplit(pref string) (string, int, error)
type SMacAddr
- func ParseMac(macStr string) (SMacAddr, error)
- func (mac SMacAddr) Add(step int) SMacAddr
- func (mac SMacAddr) String() string
type SNetInterface
- func NewNetInterface(name string) *SNetInterface
- func NewNetInterfaceWithExpectIp(name string, expectIp string) *SNetInterface
- func (n *SNetInterface) Exist() bool
- func (n *SNetInterface) FetchConfig()
- func (n *SNetInterface) FetchInter() *net.Interface
- func (n *SNetInterface) GetAddresses() [][]string
- func (n *SNetInterface) GetRouteSpecs() []iproute2.RouteSpec
- func (n *SNetInterface) GetSlaveAddresses() [][]string
- func (n *SNetInterface) IsSecretAddress(addr string, mask []byte) bool
- func (n *SNetInterface) IsSecretInterface() bool
- func (n *SNetInterface) SetupGso(on bool)
- func (n *SNetInterface) String() string

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	SECRET_PREFIX   = "169.254"
	SECRET_MASK     = []byte{255, 255, 255, 255}
	SECRET_MASK_LEN = 32
)

View Source

var MASKS = []string{"0", "128", "192", "224", "240", "248", "252", "254", "255"}

View Source

var PRIVATE_PREFIXES = []string{
	"10.0.0.0/8",
	"172.16.0.0/12",
	"192.168.0.0/16",
}

View Source

var PSEUDO_VIP = "169.254.169.231"

Functions ¶

func AddNicRoutes ¶

func AddNicRoutes(routes *[][]string, nicDesc *types.SServerNic, mainIp string, nicCnt int, privatePrefixes []string)

func DefaultSrcIpDev ¶

func DefaultSrcIpDev() (srcIp net.IP, ifname string, err error)

func ErrMacFormat ¶

func ErrMacFormat(macStr string) error

func FormatMac ¶

func FormatMac(macStr string) string

func GetFreePort ¶

func GetFreePort() (int, error)

func GetHttpRequestIp ¶

func GetHttpRequestIp(r *http.Request) string

func GetMainNicFromDeployApi ¶

func GetMainNicFromDeployApi(nics []*types.SServerNic) (*types.SServerNic, error)

func GetNicDns ¶

func GetNicDns(nicdesc *types.SServerNic) []string

func GetPrivatePrefixes ¶

func GetPrivatePrefixes(privatePrefixes []string) []string

func GetSecretInterfaceAddress ¶

func GetSecretInterfaceAddress() (string, int)

func IsTcpPortUsed ¶

func IsTcpPortUsed(addr string, port int) bool

func MacEqual ¶

func MacEqual(mac1, mac2 string) bool

func MyIP ¶

func MyIP() (ip string, err error)

MyIP returns source ip used to communicate with udp:114.114.114.114

func MyIPTo ¶

func MyIPTo(dstIP string) (ip string, err error)

MyIPTo returns source ip used to communicate with udp:dstIP

func NetBytes2Mask ¶

func NetBytes2Mask(mask []byte) string

func Netlen2Mask ¶

func Netlen2Mask(netmasklen int) string

func Netmask2Len ¶

func Netmask2Len(mask string) int

func PrefixSplit ¶

func PrefixSplit(pref string) (string, int, error)

Types ¶

type SMacAddr ¶

type SMacAddr [6]byte

func ParseMac ¶

func ParseMac(macStr string) (SMacAddr, error)

func (SMacAddr) Add ¶

func (mac SMacAddr) Add(step int) SMacAddr

func (SMacAddr) String ¶

func (mac SMacAddr) String() string

type SNetInterface ¶

type SNetInterface struct {
	Addr string
	Mask net.IPMask
	Mac  string

	Mtu int
	// contains filtered or unexported fields
}

func NewNetInterface ¶

func NewNetInterface(name string) *SNetInterface

func NewNetInterfaceWithExpectIp ¶

func NewNetInterfaceWithExpectIp(name string, expectIp string) *SNetInterface

func (*SNetInterface) Exist ¶

func (n *SNetInterface) Exist() bool

func (*SNetInterface) FetchConfig ¶

func (n *SNetInterface) FetchConfig()

func (*SNetInterface) FetchInter ¶

func (n *SNetInterface) FetchInter() *net.Interface

func (*SNetInterface) GetAddresses ¶

func (n *SNetInterface) GetAddresses() [][]string

func (*SNetInterface) GetRouteSpecs ¶

func (n *SNetInterface) GetRouteSpecs() []iproute2.RouteSpec

func (*SNetInterface) GetSlaveAddresses ¶

func (n *SNetInterface) GetSlaveAddresses() [][]string

func (*SNetInterface) IsSecretAddress ¶

func (n *SNetInterface) IsSecretAddress(addr string, mask []byte) bool

func (*SNetInterface) IsSecretInterface ¶

func (n *SNetInterface) IsSecretInterface() bool

func (*SNetInterface) SetupGso ¶

func (n *SNetInterface) SetupGso(on bool)

https://kris.io/2015/10/01/kvm-network-performance-tso-and-gso-turn-it-off/ General speaking, it is recommended to turn of GSO however, this will degrade host network performance

func (*SNetInterface) String ¶

func (n *SNetInterface) String() string

Source Files ¶

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