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985535aebc
This adds support to make exit nodes and subnet routers work when in scenarios where NAT is required. It also updates the NATConfig to be generated from a `wgcfg.Config` as that handles merging prefs with the netmap, so it has the required information about whether an exit node is already configured and whether routes are accepted. Updates tailscale/corp#8020 Signed-off-by: Maisem Ali <maisem@tailscale.com>
58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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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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"net/netip"
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"tailscale.com/tailcfg"
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"tailscale.com/types/key"
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"tailscale.com/types/logid"
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)
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//go:generate go run tailscale.com/cmd/cloner -type=Config,Peer
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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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NodeID tailcfg.StableNodeID
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PrivateKey key.NodePrivate
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Addresses []netip.Prefix
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MTU uint16
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DNS []netip.Addr
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Peers []Peer
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// NetworkLogging enables network logging.
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// It is disabled if either ID is the zero value.
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NetworkLogging struct {
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NodeID logid.PrivateID
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DomainID logid.PrivateID
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}
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}
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type Peer struct {
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PublicKey key.NodePublic
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DiscoKey key.DiscoPublic // present only so we can handle restarts within wgengine, not passed to WireGuard
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AllowedIPs []netip.Prefix
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V4MasqAddr netip.Addr // if non-zero, masquerade IPv4 traffic to this peer using this address
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PersistentKeepalive uint16
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// wireguard-go's endpoint for this peer. It should always equal Peer.PublicKey.
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// We represent it explicitly so that we can detect if they diverge and recover.
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// There is no need to set WGEndpoint explicitly when constructing a Peer by hand.
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// It is only populated when reading Peers from wireguard-go.
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WGEndpoint key.NodePublic
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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.NodePublic) (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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