cniutils

func EnableIpForwarding ¶ added in v1.13.0

func EnableIpForwarding(procSys procsyswrapper.ProcSys, ips []*current.IPConfig) error

EnableIpForwarding sets forwarding to 1 for both IPv4 and IPv6 if applicable. This func is to have a unit testable version of ip.EnableForward in ipforward_linux.go file link: https://github.com/containernetworking/plugins/blob/main/pkg/ip/ipforward_linux.go#L34

func FindIPConfigsByIfaceIndex ¶

func FindIPConfigsByIfaceIndex(ipConfigs []*current.IPConfig, ifaceIndex int) []*current.IPConfig

func FindInterfaceByName ¶

func FindInterfaceByName(ifaceList []*current.Interface, ifaceName string) (ifaceIndex int, iface *current.Interface, found bool)

func GetNodeMetadata ¶ added in v1.13.0

func GetNodeMetadata(key string) (string, error)

GetNodeMetadata calling node local imds metadata service using provided key return either a non-empty value or an error

func IsIptableTargetNotExist ¶ added in v1.13.0

func IsIptableTargetNotExist(err error) bool

IsIptableTargetNotExist returns true if the error is from iptables indicating that the target does not exist.

func IsLinkNotFoundError ¶ added in v1.13.0

func IsLinkNotFoundError(err error) bool

IsLinkNotFoundError return true if err contains "Link not found"

func WaitForAddressesToBeStable ¶ added in v1.13.0

func WaitForAddressesToBeStable(netLink netlinkwrapper.NetLink, ifName string, timeout, waitInterval time.Duration) error

WaitForAddressesToBeStable Implements `SettleAddresses` functionality of the `ip` package. waitForAddressesToBeStable waits for all addresses on a link to leave tentative state. Will be particularly useful for ipv6, where all addresses need to do DAD. If any addresses are still tentative after timeout seconds, then error.