nlri

package

v0.10.0 Latest Latest Go to latest Published: Jan 15, 2026 License: MIT Imports: 9 Imported by: 2

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var (
	ErrLength = errors.New("invalid length")
	ErrValue  = errors.New("invalid value")
)

func Marshal(dst []byte, src []Prefix, as afi.AS, cps caps.Caps, dir dir.Dir) []byte

Marshal marshals prefixes in src to dst

func ToJSON(dst []byte, src []Prefix) []byte

ToJSON appends JSON representation of prefixes in src to dst

type PathId uint32

type Prefix struct {
	netip.Prefix // the IP prefix

	Add any // additional value, eg. the ADD_PATH Path Identifier
}

Prefix is Network Layer Reachability Information (RFC4271), extended to support ADD_PATH (RFC7911) and possibly other features.

func FromAddr(ip netip.Addr) Prefix

FromAddr returns normalized address ip wrapped in NLRI

func FromJSON(src []byte, dst []Prefix) ([]Prefix, error)

FromJSON parses JSON representation of prefixes in src into dst

func FromPrefix(p netip.Prefix) Prefix

FromPrefix returns normalized prefix p wrapped in NLRI

func FromString(s string) (n Prefix, e error)

FromString parses either a prefix or an address in string format, and returns it normalized and wrapped in NLRI.

func Unmarshal(dst []Prefix, src []byte, as afi.AS, cps caps.Caps, dir dir.Dir) ([]Prefix, error)

Unmarshal unmarshals IP prefixes from src into dst

func (p *Prefix) FindParent(parents []Prefix) int

FindParent returns the first index i into parents where parents[i] fully covers p, or -1 if not found.

func (p *Prefix) Marshal(dst []byte, addpath bool) []byte

Marshal marshals prefix p to dst

func (p *Prefix) Unmarshal(src []byte, ipv6, addpath bool) (n int, err error)

Unmarshal unmarshals src into prefix p