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fe7c3e9c17
This is mostly code movement from the wireguard-go repo.
Most of the new wgcfg package corresponds to the wireguard-go wgcfg package.
wgengine/wgcfg/device{_test}.go was device/config{_test}.go.
There were substantive but simple changes to device_test.go to remove
internal package device references.
The API of device.Config (now wgcfg.DeviceConfig) grew an error return;
we previously logged the error and threw it away.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package wgcfg has types and a parser for representing WireGuard config.
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package wgcfg
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import (
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"inet.af/netaddr"
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)
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// Config is a WireGuard configuration.
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// It only supports the set of things Tailscale uses.
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type Config struct {
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Name string
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PrivateKey PrivateKey
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Addresses []netaddr.IPPrefix
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ListenPort uint16
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MTU uint16
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DNS []netaddr.IP
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Peers []Peer
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}
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type Peer struct {
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PublicKey Key
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AllowedIPs []netaddr.IPPrefix
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Endpoints string // comma-separated host/port pairs: "1.2.3.4:56,[::]:80"
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PersistentKeepalive uint16
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}
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// Copy makes a deep copy of Config.
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// The result aliases no memory with the original.
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func (cfg Config) Copy() Config {
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res := cfg
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if res.Addresses != nil {
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res.Addresses = append([]netaddr.IPPrefix{}, res.Addresses...)
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}
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if res.DNS != nil {
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res.DNS = append([]netaddr.IP{}, res.DNS...)
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}
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peers := make([]Peer, 0, len(res.Peers))
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for _, peer := range res.Peers {
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peers = append(peers, peer.Copy())
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}
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res.Peers = peers
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return res
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}
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// Copy makes a deep copy of Peer.
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// The result aliases no memory with the original.
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func (peer Peer) Copy() Peer {
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res := peer
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if res.AllowedIPs != nil {
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res.AllowedIPs = append([]netaddr.IPPrefix{}, res.AllowedIPs...)
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}
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return res
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}
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// PeerWithKey returns the Peer with key k and reports whether it was found.
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func (config Config) PeerWithKey(k Key) (Peer, bool) {
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for _, p := range config.Peers {
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if p.PublicKey == k {
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return p, true
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}
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}
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return Peer{}, false
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}
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