net

func CIDROverlap ¶

func CIDROverlap(n1, n2 net.IPNet) bool

CIDROverlap VPL: Not used ? duplicate with DoCIDRsIntersect CIDROverlap tells if the 2 CIDR passed as parameter intersect

func CIDRToIPv4Range ¶

func CIDRToIPv4Range(cidr string) (string, string, fail.Error)

CIDRToIPv4Range converts CIDR to IPv4 range

func CIDRToUInt32Range ¶

func CIDRToUInt32Range(cidr string) (uint32, uint32, fail.Error)

CIDRToUInt32Range converts CIDR to IPv4 range

func CheckRemoteTCP ¶ added in v21.11.1

func CheckRemoteTCP(ip string, port int) bool

CheckRemoteTCP returns true if ip:port is listening, false otherwise

func FirstIncludedSubnet ¶

func FirstIncludedSubnet(base net.IPNet, maskAddition uint8) (net.IPNet, fail.Error)

FirstIncludedSubnet takes a parent CIDR range and gives the first subnet within it with the given number of additional prefix bits 'maskAddition'.

For example, 192.168.0.0/16, extended by 8 bits becomes 192.168.0.0/24.

func IPv4StringToUInt32 ¶

func IPv4StringToUInt32(ip string) uint32

IPv4StringToUInt32 converts IPv4 to uint32

func IPv4ToUInt32 ¶

func IPv4ToUInt32(ip net.IP) uint32

IPv4ToUInt32 converts net.IP to uint32

func IsCIDRRoutable ¶

func IsCIDRRoutable(cidr string) (bool, fail.Error)

IsCIDRRoutable tells if the network is routable

func IsConnectionRefused ¶

func IsConnectionRefused(err error) bool

IsConnectionRefused returns true if given err is a "connection refused" error

func IsConnectionReset ¶

func IsConnectionReset(err error) bool

IsConnectionReset returns true if given err is a "reset by peer" error

func NthIncludedSubnet ¶

func NthIncludedSubnet(base net.IPNet, maskAddition uint8, nth uint) (net.IPNet, fail.Error)

NthIncludedSubnet takes a parent CIDR range and gives the 'nth' subnet within it with the given numver of additional prefix bits 'maskAddition'

For example, 192.168.0.0/16, extended by 8 bits gives as 4th subnet 192.168.4.0/24.

func UInt32ToIPv4 ¶

func UInt32ToIPv4(value uint32) net.IP

UInt32ToIPv4 converts uint32 to net.IP

func UInt32ToIPv4String ¶

func UInt32ToIPv4String(value uint32) string

UInt32ToIPv4String converts uint32 to IP

func WhileCommunicationUnsuccessfulDelay1Second ¶

func WhileCommunicationUnsuccessfulDelay1Second(callback func() error, timeout time.Duration) fail.Error

WhileCommunicationUnsuccessfulDelay1Second executes callback inside a retry loop with tolerance for communication errors (relative to net package), waiting 1 second between each try, with a limit of 'timeout'

func WhileUnsuccessfulButRetryable ¶

func WhileUnsuccessfulButRetryable(callback func() error, waiter *retry.Officer, timeout time.Duration, options ...retry.Option) fail.Error

WhileUnsuccessfulButRetryable executes callback inside a retry loop with tolerance for communication errors (relative to net package), or some fail.Error that are considered retryable: asking "waiter" to wait between each try, with a duration limit of 'timeout'.