subnet

Documentation

Index

• func BelongsTo(parent *net.IPNet, child *net.IPNet) bool
• func Overlap(l, r *net.IPNet) bool
• func SplitInto(additionalBits uint, parent *net.IPNet) ([]*net.IPNet, error)
• func SplitInto1(parent *net.IPNet) ([]*net.IPNet, error)
• func SplitInto2(parent *net.IPNet) ([]*net.IPNet, error)
• func SplitInto4(parent *net.IPNet) ([]*net.IPNet, error)
• func SplitInto8(parent *net.IPNet) ([]*net.IPNet, error)
• type CIDRMap
  • func (c *CIDRMap) Allocate(from string, mask net.IPMask) (*net.IPNet, error)
  • func (c *CIDRMap) MarkInUse(s string) error

Functions

func BelongsTo

func BelongsTo(parent *net.IPNet, child *net.IPNet) bool

BelongsTo checks if child is a subnet of parent

func Overlap

func Overlap(l, r *net.IPNet) bool

Overlap checks if two subnets overlap

func SplitInto

func SplitInto(additionalBits uint, parent *net.IPNet) ([]*net.IPNet, error)

SplitInto splits the parent IPNet into subnets with the specified number of additional bits in the prefix.

func SplitInto1

func SplitInto1(parent *net.IPNet) ([]*net.IPNet, error)

SplitInto1 splits the parent IPNet into 1 subnet

func SplitInto2

func SplitInto2(parent *net.IPNet) ([]*net.IPNet, error)

SplitInto2 splits the parent IPNet into 2 subnets

func SplitInto4

func SplitInto4(parent *net.IPNet) ([]*net.IPNet, error)

SplitInto4 splits the parent IPNet into 4 subnets

func SplitInto8

func SplitInto8(parent *net.IPNet) ([]*net.IPNet, error)

SplitInto8 splits the parent IPNet into 8 subnets

Types

type CIDRMap

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

CIDRMap is a helper structure to allocate unused CIDRs

func (*CIDRMap) Allocate

func (c *CIDRMap) Allocate(from string, mask net.IPMask) (*net.IPNet, error)

func (*CIDRMap) MarkInUse

func (c *CIDRMap) MarkInUse(s string) error