mirror of
https://github.com/tailscale/tailscale.git
synced 2024-12-04 23:45:34 +00:00
463728a885
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
64 lines
1.7 KiB
Go
64 lines
1.7 KiB
Go
// Copyright (c) 2022 Tailscale Inc & AUTHORS All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// Package netconv provides utilities to convert between netaddr and netip.
|
|
// To convert from a net.IP, use the netaddr/netip API.
|
|
package netconv
|
|
|
|
import (
|
|
"net/netip"
|
|
|
|
"inet.af/netaddr"
|
|
)
|
|
|
|
// AsIP returns a as a netaddr.IP.
|
|
func AsIP(a netip.Addr) netaddr.IP {
|
|
switch {
|
|
case a.Is4():
|
|
return netaddr.IPFrom4(a.As4())
|
|
case a.Is6():
|
|
return netaddr.IPv6Raw(a.As16()).WithZone(a.Zone())
|
|
}
|
|
return netaddr.IP{}
|
|
}
|
|
|
|
// AsAddr returns a as a netip.IP.
|
|
func AsAddr(a netaddr.IP) netip.Addr {
|
|
switch {
|
|
case a.Is4():
|
|
return netip.AddrFrom4(a.As4())
|
|
case a.Is6():
|
|
return netip.AddrFrom16(a.As16()).WithZone(a.Zone())
|
|
}
|
|
return netip.Addr{}
|
|
}
|
|
|
|
// AsIPPrefix returns a as a netaddr.IPPrefix.
|
|
// If a has Bits of -1, indicating an invalid bits,
|
|
// the returned IPPrefix will have Bits of 255.
|
|
// AsIPPrefix and AsPrefix do not
|
|
// round trip for invalid Bits values.
|
|
func AsIPPrefix(a netip.Prefix) netaddr.IPPrefix {
|
|
return netaddr.IPPrefixFrom(AsIP(a.Addr()), uint8(a.Bits()))
|
|
}
|
|
|
|
// AsPrefix returns a as a netip.Prefix.
|
|
// If a has an invalid Bits value,
|
|
// the returned Prefix will have Bits of -1.
|
|
// AsIPPrefix and AsPrefix do not
|
|
// round trip for invalid Bits values.
|
|
func AsPrefix(a netaddr.IPPrefix) netip.Prefix {
|
|
return netip.PrefixFrom(AsAddr(a.IP()), int(a.Bits()))
|
|
}
|
|
|
|
// AsIPPort returns a as a netaddr.IPPort.
|
|
func AsIPPort(a netip.AddrPort) netaddr.IPPort {
|
|
return netaddr.IPPortFrom(AsIP(a.Addr()), a.Port())
|
|
}
|
|
|
|
// AsAddrPort returns a as a netip.AddrPort.
|
|
func AsAddrPort(a netaddr.IPPort) netip.AddrPort {
|
|
return netip.AddrPortFrom(AsAddr(a.IP()), a.Port())
|
|
}
|