44 lines
855 B
Go
44 lines
855 B
Go
package routing
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"net/netip"
|
|
)
|
|
|
|
func NetipPrefixToIPNet(prefix *netip.Prefix) (ipNet *net.IPNet) {
|
|
if prefix == nil {
|
|
return nil
|
|
}
|
|
|
|
s := prefix.String()
|
|
ip, ipNet, err := net.ParseCIDR(s)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
ipNet.IP = ip
|
|
return ipNet
|
|
}
|
|
|
|
func netIPNetToNetipPrefix(ipNet net.IPNet) (prefix netip.Prefix) {
|
|
if len(ipNet.IP) != net.IPv4len && len(ipNet.IP) != net.IPv6len {
|
|
return prefix
|
|
}
|
|
var ip netip.Addr
|
|
if ipv4 := ipNet.IP.To4(); ipv4 != nil {
|
|
ip = netip.AddrFrom4([4]byte(ipv4))
|
|
} else {
|
|
ip = netip.AddrFrom16([16]byte(ipNet.IP))
|
|
}
|
|
bits, _ := ipNet.Mask.Size()
|
|
return netip.PrefixFrom(ip, bits)
|
|
}
|
|
|
|
func netIPToNetipAddress(ip net.IP) (address netip.Addr) {
|
|
address, ok := netip.AddrFromSlice(ip)
|
|
if !ok {
|
|
panic(fmt.Sprintf("converting %#v to netip.Addr failed", ip))
|
|
}
|
|
return address
|
|
}
|