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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>
62 lines
1.2 KiB
Go
62 lines
1.2 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
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import (
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"io"
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"sort"
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"github.com/tailscale/wireguard-go/device"
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"tailscale.com/types/logger"
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)
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func DeviceConfig(d *device.Device) (*Config, error) {
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r, w := io.Pipe()
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errc := make(chan error, 1)
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go func() {
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errc <- d.IpcGetOperation(w)
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w.Close()
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}()
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cfg, err := FromUAPI(r)
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if err != nil {
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return nil, err
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}
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if err := <-errc; err != nil {
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return nil, err
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}
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sort.Slice(cfg.Peers, func(i, j int) bool {
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return cfg.Peers[i].PublicKey.LessThan(&cfg.Peers[j].PublicKey)
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})
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return cfg, nil
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}
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// ReconfigDevice replaces the existing device configuration with cfg.
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func ReconfigDevice(d *device.Device, cfg *Config, logf logger.Logf) (err error) {
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defer func() {
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if err != nil {
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logf("wgcfg.Reconfig failed: %v", err)
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}
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}()
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prev, err := DeviceConfig(d)
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if err != nil {
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return err
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}
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r, w := io.Pipe()
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errc := make(chan error)
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go func() {
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errc <- d.IpcSetOperation(r)
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}()
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err = cfg.ToUAPI(w, prev)
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if err != nil {
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return err
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}
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w.Close()
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return <-errc
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}
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